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    • 专利摘要:
    Procedure for the realization of images and stereoscopic films of double viewing. Procedure comprising the stages of: - Perform at least two radiographs in the study area. - Longitudinal displacement of the X-ray tube head or the stretcher where the object is located. - Rotating the X-Sensor tube assembly. - Using an additional platform to rotate the object. - Application of the radiographs to the two monitors of a stereoscopic monitor, one of its faces and then both images are arranged on the other of the faces, obtaining double viewing. Where the stereographic monitor is provided by a set of vertical guides and horizontal guides as a plotter. It is possible to form a 3D three-dimensional image with just two x-rays, which offers a view of the front and the back of the radiographed image with depth information, or a film that offers the possibility of double viewing. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2737452A1
    申请号:ES201830671
    申请日:2018-07-04
    公开日:2020-01-14
    发明作者:Guerrero Cristobal Ayala
    申请人:Guerrero Cristobal Ayala；
    IPC主号:
    专利说明:

    [0001]
    [0002] PROCEDURE FOR IMPLEMENTING STEREOSCOPIC IMAGES AND DOUBLE VISIONED FILMS
    [0003]
    [0004] OBJECT OF THE INVENTION
    [0005]
    [0006] It is the object of the present invention, as the title of the invention establishes, a procedure for making stereoscopic images that have the characteristic of offering a double view. The object of the present invention is also a process for the generation of stereoscopic films that also offer the possibility of double viewing.
    [0007]
    [0008] The present invention characterizes the fact of achieving a stereoscopic image or film that offers a double view, one from the front and the other viewed or seen from the back, obtaining three-dimensional images that provide unique and very valuable information reducing the number of images that would be necessary with traditional stereoscopic images.
    [0009]
    [0010] Therefore, the present invention is circumscribed within the scope of stereoscopic images.
    [0011]
    [0012] BACKGROUND OF THE INVENTION
    [0013]
    [0014] Stereoscopy, stereographic image, or 3D (three-dimensional) image is any technique capable of collecting three-dimensional visual information and / or creating the illusion of depth in an image. The illusion of depth in a photograph, film, or other two-dimensional image is created by presenting a slightly different image for each eye, as in our usual way of seeing. It was invented by Sir Charles Wheatstone about 1840.
    [0015]
    [0016] Traditional stereoscopic photography consists of creating a 3D illusion from a pair of 2D images. The easiest way to create perception in the brain deep is to provide the viewer's eyes with two different images, which represent two perspectives of the same object, with a small deviation similar to the perspectives that the eyes naturally receive in the binocular vision.
    [0017]
    [0018] The two eyes, being located in different positions, each collect in their retinas a slightly different image of the reality in front of them. These small differences are processed in the brain to calculate the distance at which the objects are found using the parallax technique. The calculation of distances places the objects we are seeing in three-dimensional space, obtaining a sense of depth or volume. So if we take or create two images with a slightly different angle and show them to each eye separately, the brain can reconstruct the distance and therefore the sensation of three-dimensionality.
    [0019]
    [0020] Therefore, for the generation of a stereoscopic image, what is basically done is to move two images with respect to each other either angularly or longitudinally, allowing only the previous view to be visualized, that is, it presents a single view from two images. .
    [0021]
    [0022] The object of the invention is to be able to obtain a double-viewing stereoscopic image from two images, which can be seen stereoscopically from the front and back, or the generation of a stereoscopic film from a set of images. stereoscopic where said film allows a double visualization, on the front and back, that is, with a certain number of stereoscopic images we obtain twice as much information, developing for such purposes a procedure such as the one described below and is collected in its essentiality in the first claim.
    [0023]
    [0024] DESCRIPTION OF THE INVENTION
    [0025]
    [0026] The object of the present invention is a method for making an image double viewing stereoscopic comprising the stages of:
    [0027] • Perform at least two radiographs in the area under study, where these radiographs can be done in one of the following four ways:
    [0028] • Displacement of the X-ray tube head longitudinally from left to right or from right to left or front-back or back-forward.
    [0029] • Displacement of the stretcher where the object to be studied is located longitudinally from left to right or from right to left or forward-backward or backward-forward.
    [0030] • By rotating the X-ray tube-Sensor assembly, in a circular direction, that is to say clockwise or counterclockwise.
    [0031] • Using an additional platform or a determined tooling (which can be placed both flat and upright to make a turn on itself) it is also possible to rotate the object to be studied in a clockwise or anti-clockwise direction while maintaining the emitter tube and X-ray sensor in fixed position.
    [0032]
    [0033] So once the two images are obtained, they will be displayed on a monitor, which may be:
    [0034] - A stereoscopic monitor comprising two monitors, for the first time the two images are arranged on said monitors by one of their faces and then both images are arranged on said monitors by the other of the faces that is rotated 180 ° with respect to their vertical axis getting double viewing.
    [0035]
    [0036] In order to facilitate the overlapping effect of the images to be displayed, the stereoscopic monitor is provided with a set of vertical and horizontal guides as a plotter that will allow moving the monitor placed on from left to right and from front to back or vice versa the upper part, keeping the monitor at the rear fixed.
    [0037]
    [0038] - a conventional monitor or any white projection screen using a projector, having previously converted the images into anaglyph, where said conventional monitor can be a color screen, a Tablet, a mobile or any device capable of reproducing color images, without the need for stereographic screens, being aware of the reduction in quality, color and density of information obtained. In case of using a conventional projector on a white projection screen or any other white background support, the depth effect can be observed, always with the quality limitations of the anaglyph technique.
    [0039]
    [0040] - A folio of white paper or any other type of support with white background where you can print the image you want to see previously converted to anaglyph
    [0041]
    [0042] - In a 3D device having previously passed the images to a formed for example "side-by-side" or other format used by 3D devices that we can currently find in the market.
    [0043]
    [0044] In such a way that by looking at the front and the back of said pair of radiographs, at least two unique three-dimensional images are obtained, one anterior and the other posterior, which can provide real and very valuable information in many cases of the volumetric morphology of The area to study.
    [0045]
    [0046] Throughout this exhibition in order to facilitate understanding in some paragraphs, reference will sometimes be made to three-dimensional image, not exactly correct expression, since the three-dimensional images themselves do not exist since the three-dimensionality is generated by our own brain to perceive in a concrete way two two-dimensional images, which form what we have called stereoscopic image.
    [0047]
    [0048] Two three-dimensional images are obtained with the only two radiographs taken, because the radiographic image obtained when the object to be illuminated is illuminated with a light source capable of passing through opaque elements, such as the source of light emitted by X-rays, that determines two directions in which the same image can be observed, that is, from the front to the back and from the back to the front, so when viewing the images conveniently, the two three-dimensional radiographs, viewed from different perspectives, are perfectly observed, which is very useful when Locate and determine the exact position of the problem to study.
    [0049]
    [0050] Longitudinal displacement of the X-ray head or the stretcher where the object to be studied is located.
    [0051]
    [0052] It consists of placing the object to be studied in the same position as to perform a conventional radiography and once the area to be radiated is established, the first radiography is carried out and then without the object to be studied, the radiographic table is moved or failing that, the X-ray tube in the longitudinal direction from left to right or vice versa or in the direction from front to back or vice versa, but always on the same horizontal axis and within the same horizontal plane a distance between 1 cm and 8 cm depending of the depth that you want to observe in the stereoscopic image.
    [0053]
    [0054] The reason for moving from left to right or from right to left or from front to back or back to front, depends on what you want to visualize on the x-rays since to form stereoscopic images we have to look for the elements that we want to visualize in depth, they must be placed obliquely or perpendicularly on the horizontal axis in which we move.
    [0055]
    [0056] If on the contrary what we want to visualize in depth is a structure formed by horizontal elements, we will have to move the stretcher or the Rx tube from front to back or vice versa.
    [0057]
    [0058] After having carried out various tests we have observed that the ideal distance between the shots of the radiographic images corresponding to the right and left eye is between 3 and 6 cm.
    [0059] The two radiographic images obtained will correspond to what should be visualized by the right eye and the other will be the image that should be visualized by the left eye.
    [0060]
    [0061] Thus, once the two images are obtained, these will be applied to the two monitors that together form the stereoscopic monitor and that in order to facilitate the superposition of the images to be displayed, it is provided by a set of guides in vertical and horizontal as a plotter that will allow to move from left to right and from front to back or vice versa the monitor placed at the top, keeping the monitor at the rear fixed.
    [0062]
    [0063] These images will be placed on the two monitors by one of their faces, obtaining a first stereoscopic image, then the radiographs are rotated. Said rotation will be a 180 ° rotation on its axis of vertical symmetry, leaving the images as seen in a mirror, which allows obtaining a second stereoscopic image which allows the second view to be obtained from two unique images, in this case radiographs, providing additional information such as the depth at which a point is within the object analyzed.
    [0064]
    [0065] It is also possible to incorporate the system of guides as a plotter in the rear monitor and leaving the upper monitor fixed we will obtain the same practical result, but this option is less manageable so it is more advisable that the displacements are made on the monitor placed in the top
    [0066]
    [0067] Rotation of the x-ray tube and sensor assembly clockwise or anti-clockwise, consists in placing the object to be studied on the stretcher in the same position as to perform a conventional radiography.
    [0068]
    [0069] Once the area to be radiated is established, the first radiography is carried out and then without the object to be studied moving, the X-ray - Sensor assembly is rotated in a circular direction, that is, in a clockwise or anti-clockwise direction. schedule taking as its axis of rotation the object to be studied and performing the second projection with a rotation angle between 1 ° and 12 ° depending on the depth you want to observe in the stereoscopic image.
    [0070]
    [0071] After having carried out various tests we have observed that the ideal distance between the shots of the radiographic images corresponding to the right and left eye is between 3 ° and 7 °.
    [0072]
    [0073] The two radiographic images obtained will correspond to what should be visualized by the right eye and the other will be the image that should be visualized by the left eye.
    [0074]
    [0075] So once the two images are obtained, they will be applied to the two monitors that together form the stereoscopic monitor
    [0076]
    [0077] Using an additional platform causing the object to be rotated while keeping the emitting tube and x-ray sensor in a fixed position.
    [0078]
    [0079] It consists of placing the object to study on the appropriate platform or tooling which can be placed both in a flat position and in a vertical position, according to the need to make a turn on itself
    [0080]
    [0081] Once placed the object to study on the platform or tooling designed for the purpose at hand and in the same position as to perform a conventional radiography
    [0082]
    [0083] The area to be radiated is established and the first radiography is carried out, then without the object to be studied moving, the platform or tooling is rotated in a circular direction, that is, in a clockwise or anti-clockwise direction while maintaining fixed the transmitter tube and X-ray sensor assembly by performing the second projection with an angle of rotation between 1 ° and 12 ° depending on the depth you want to observe in the stereoscopic image.
    [0084]
    [0085] After having carried out various tests we have observed that the ideal distance between the shots of the radiographic images corresponding to the right and left eye is between the 3rd and 7th.
    [0086]
    [0087] The two radiographic images obtained will correspond to what should be visualized by the right eye and the other will be the image that should be visualized by the left eye.
    [0088]
    [0089] Thus, once the two images have been obtained, they will be applied to the two monitors that together form the stereoscopic monitor described.
    [0090]
    [0091] In the same way that in order to obtain a stereoscopic radiography, we perform two conventional radiographs in a concrete way and at specific distances, if this is not enough to diagnose a problem of the internal structure of the object to be studied, we can perform a series of radiographs by the same procedures described in the previous sections and make some films, thus providing movement of the obtained radiographs and imitating the films made in the reconstruction for the 3D recreation of the images obtained in the realization of the TAC, RM, etc.
    [0092]
    [0093] In the case of horizontal displacement of the stretcher that incorporates the radiographic table or of the X-ray emitting tube, successive radiographs are carried out, longitudinally displacing the stretcher that incorporates the radiographic table or the X-ray emitter always in the same direction. Then with the series of obtained radiographs we can make two small films which will correspond each to what must be visualized by each eye combining the obtained radiographs.
    [0094]
    [0095] In the case that the embodiment consists in the rotation of the x-ray tube assembly, either clockwise or anti-clockwise, a successive series of x-rays are performed by rotating the X-ray tube assembly in the same always felt until we get the number of x-rays we want to make the movie.
    [0096]
    [0097] Then with the series of radiographs obtained, we can perform two small films which will correspond each to what must be visualized by each eye combining the obtained radiographs.
    [0098]
    [0099] In the case of using an additional platform in which the object to be studied is turned clockwise or anti-clockwise, keeping the emitter tube and the x-ray sensor in a fixed position. It consists in rotating the additional platform in a successive manner in the same direction until obtaining a number of radiographs equal to those desired to make the film.
    [0100]
    [0101] Then with the series of x-rays obtained, we can make two small films which will correspond each to what must be visualized by each eye combining the x-rays obtained.
    [0102]
    [0103] Throughout the description we talk about X-rays, being able to use any other type of rays such as gamma rays, etc., in short, any type of radiation, an electromagnetic radiation, invisible to the human eye, capable of crossing opaque bodies and of printing photographic films.
    [0104]
    [0105] From any film obtained by rotating a camera around an object, or scene without movement composed of different objects either with radiographs such as a TAC film or with normal images of conventional photography, with any software of those already existing in The image editing market, VLC type for example, is possible to obtain the frames that form the monoscopic film.
    [0106]
    [0107] Thus, having those frames that form the monoscopic film, we can select those that meet the requirements of the displacements that we have already mentioned in the description that are between 1 and 12 with preference between 3 and 7 and generate same way described above, the two images or stereoscopic films.
    [0108]
    [0109] Therefore from a monoscopic film, obtained with a single camera rotating around an object, or scene without movement composed of different objects, we can select the frames that form it and make the set of the two images or two films that will allow us to see in 3 dimensions that same recording that in principle could only be seen in two dimensions.
    [0110]
    [0111] Unless otherwise indicated, all technical and scientific elements used herein have the meaning normally understood by a person skilled in the art to which this invention pertains. In the practice of the present invention methods and materials similar or equivalent to those described herein can be used.
    [0112]
    [0113] Throughout the description and the claims the word "comprises" and its variants are not intended to exclude other technical characteristics, additives, components or steps. For those skilled in the art, other objects, advantages and features of the invention will be apparent in part of the description and part of the practice of the invention.
    [0114]
    [0115] EXPLANATION OF THE FIGURES
    [0116]
    [0117] To complement the description that is being made and in order to help a better understanding of the features of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. where, for illustrative and non-limiting purposes, the following has been represented.
    [0118]
    [0119] In Figure 1 we can see two images, a first one that corresponds to what the left eye should see, and a second one that corresponds to what the right eye should see.
    [0120]
    [0121] Figure 2 shows a monitor attached to a plotter addressed by a pair of guides.
    [0122]
    [0123] Figure 3 shows a series of radiographs displacing the stretcher that incorporates the radiographic table a series of cm in cm.
    [0124] Figure 4 shows the stereoscopic monitor used in the invention.
    [0125]
    [0126] Figure 5 shows a possible realization of 5 ° outdated radiographs, and as it is only necessary to perform the radiographs from 0 ° to (175 °) because the 180 ° is already that of 0 ° turned 180 ° and the rest are the result of rotating the previous 180 ° with respect to each of its vertical axis.
    [0127]
    [0128] Figure 6 shows an object on which a series of stereographic radiographs have been made and the images obtained by rotating the first radiographs made 180 °.
    [0129]
    [0130] PREFERRED EMBODIMENT OF THE INVENTION.
    [0131]
    [0132] In view of the figures, a preferred embodiment of the proposed invention is described below.
    [0133]
    [0134] In Figure 1 we can see two images, a first image (1) that corresponds to what the left eye should see, and another second image (2) that corresponds to what the right eye should see.
    [0135]
    [0136] In the first and second embodiment corresponding to the longitudinal displacement, the ideal distance between the shots of the radiographic images corresponding to the right and left eye is between 3 to 6 cm.
    [0137]
    [0138] In the third embodiment by rotating X-ray tube in a circular direction after having carried out various tests we have observed that the ideal distance between the shots of the radiographic images corresponding to the right and left eye is between 3 and 7 °.
    [0139]
    [0140] Likewise, in the fourth embodiment carried out by means of an additional platform to arrange the object to be studied, said platform is rotated between 3 ° and 7 ° to take the appropriate shots of the radiographic images corresponding to the right and left eye.
    [0141]
    [0142] Figure 2 shows a monitor attached to a plotter formed by vertical guides (3) and horizontal guides (4) so that it will allow you to move to the monitor from front to back and from left to right, or vice versa, if applicable preferably to the upper monitor, with the possibility of being able to be coupled to the rear monitor, in which case the movement of the monitor would be from top to bottom or from left to right or vice versa.
    [0143]
    [0144] A series of radiographs taken with successive horizontal displacements are shown in Figure 3.
    [0145]
    [0146] In this form of execution a possible embodiment is by means of a displacement between shots of 1cm.
    [0147]
    [0148] In this specific case exposed, being the distance to obtain between 1cm frames, we maintain the distance for stereoscopic radiography at 3 cm since it would be: 1-4, 2-5, 3-6 ....... 17 -twenty
    [0149]
    [0150] The order of radiographs that will form the film to be visualized by the left eye will be: 1st, 2nd, 3rd, 4th, 5th ......................... ............... 17a
    [0151]
    [0152] The order of radiographs that will form the film to be visualized by the right eye will be: 4th, 5th, 6th, 7th, 8th ......................... ...............20 a
    [0153]
    [0154] The generation of the two films can be done automatically or by using appropriate software designed for this purpose or by a relatively simple procedure that would be performed as follows.
    [0155]
    [0156] We apply the series of radiographs obtained to a Video distributor that has two outputs.
    [0157]
    [0158] One of the outputs that comes from the Video distributor is applied to a circuit video on / off so that we do not have an output signal in the circuit until it receives the corresponding order, keeping the monitor associated with this output with the black screen.
    [0159]
    [0160] The other output of the video distributor is applied to a buffer circuit which will be receiving that information and filling up, not giving a signal at its exit until receiving the corresponding order, thus maintaining the monitor associated to its output with the black screen.
    [0161]
    [0162] A timer circuit after the programmed time, or by frame count, will generate a trigger pulse that will be sent simultaneously to the video on / off circuit and to the buffer to activate its outputs.
    [0163]
    [0164] Thus, when the information begins to arrive at the video distributor, said information appears simultaneously on the two outputs of the distributor and these in turn at the corresponding input of each circuit.
    [0165]
    [0166] The monitors in principle have a black screen until the timer / frame counter gives the order to activate or start the process.
    [0167]
    [0168] At that time, the circuits are activated and the first monitor receives the information corresponding to radiography number 4 and to the second monitor the information corresponding to radiography number 1 arrives at the same time.
    [0169]
    [0170] Then the information corresponding to radiography number 5 will appear on the first monitor and the information corresponding to radiography number 2 will appear on the monitor that goes through the buffer and so on until the end of the cycle.
    [0171]
    [0172] In this way you can visualize the generated stereoscopic film that will undoubtedly facilitate the diagnosis to the specialist who has to assess the problem in the inside of the object.
    [0173]
    [0174] The generation of a film by means of the third embodiment consisting in the rotation of the X-ray tube, in a circular direction, in a clockwise direction or in an anti-clockwise direction.
    [0175]
    [0176] We will obtain the frames at a distance that we consider appropriate depending on how smooth we want the transition between frames, for example from 1 ° to 1 ° but taking into account that the frames that we will use to make the films that will form the stereoscopic film , will maintain a separation between 1 ° and 12 ° depending on the depth that you want to observe in the stereoscopic image.
    [0177]
    [0178] For example, we get 72 x-rays taken one after the other by rotating the RX-Sensor tube assembly clockwise from 5 ° to 5 ° to form a complete 360 ° turn
    [0179]
    [0180] If we want to form a stereoscopic film where the frame separation is 5 °, the films corresponding to each eye would be formed as follows.
    [0181]
    [0182] Left eye: X-rays 1,2,3,4,5,6,7, ....... 71-72-1,2,3 ...
    [0183]
    [0184] Right eye: Radiographs 2,3,4,5,6,7,8 ........ 72-1,2, 3,4 .....
    [0185]
    [0186] In this way, as you can see, a stereoscopic image is always present, since when frame 1 is present in the left eye, frame 2 is present in the right eye, when frame 2 is present in the left eye, in the left eye right eye, frame 3 is present and so on indefinitely until the 360 ° is closed again and again.
    [0187]
    [0188] So we will observe an endless sequence as the film is repeated over and over again, maintaining a stereoscopic vision of the Images that we have in front of us.
    [0189]
    [0190] In this way we will observe the entire interior of the object to be studied in a volumetric way, thus facilitating the ability to locate any anomaly or problem within it.
    [0191]
    [0192] When the displacement is rotatable and the angular separation is maintained within the established limits of between 1 ° and 12 ° and preferably between 3 ° and 7 °, the same procedure is used as in the linear displacement and to make the films corresponding to what the left eye should see and what the right eye should see, will be the same as described in the previous section, that is:
    [0193]
    [0194] We apply the series of radiographs obtained to a Video distributor that has two outputs.
    [0195]
    [0196] One of the outputs that comes from the Video distributor is applied to a video on / off circuit so that we do not have an output signal in the circuit until it receives the corresponding order, keeping the monitor associated with this output with the black screen
    [0197]
    [0198] The other output of the video distributor is applied to a buffer circuit which will be receiving that information and filling up, not giving a signal at its exit until receiving the corresponding order, thus maintaining the monitor associated to its output with the black screen.
    [0199]
    [0200] A timer circuit after the programmed time, or by frame count, will generate a trigger pulse that will be sent simultaneously to the video on / off circuit and to the buffer to activate its outputs.
    [0201]
    [0202] For example:
    [0203]
    [0204] We can perform to make the same turn of the previous example, which represents the start 0 ° the first radiography and then turning the set Tube RX-Sensor 5, the second radiography.
    [0205]
    [0206] Then we turn the RX-Sensor tube assembly to the 30 ° position and perform the third radiography, we rotate another 5 °, that is, we put ourselves in the 35 ° position and do the fourth radiography.
    [0207]
    [0208] We move forward another 30 °, that is, we put ourselves in the 60 ° position and perform the fifth radiography and in the 65 ° position we perform the sixth radiography and so on until completing the 360 °, that is, we will have performed radiographs in the positions:
    [0209]
    [0210] 0 °, 30 °, 60 °, 90 °, 120 °, 150 °, 180 °, 210 °, 240 °, 270 °, 300 °, 330 ° and we return (360 ° = 0 °) = 12 X-rays
    [0211]
    [0212] 5th, 35th, 65th, 95th, 125th, 155th, 185th, 215th, 245th, 275th, 305th, 335th and we come back (365 ° = 5th) = 12 X-rays
    [0213]
    [0214] In this case we will have made the same 360 ° rotation with only 24 radiographs.
    [0215]
    [0216] In the event that the separation of each pair of stereographic radiographs is greater than the distance between the two radiographs of each pair. In this case, the steps to be taken to obtain the films corresponding to what the left eye should see and what the right eye should see are:
    [0217]
    [0218] - Making at least four radiographs corresponding to two pairs of stereographic images
    [0219] - Each pair of stereographic images will consist of 2 images that between shots will have a separation between 1 ° and 12 °, preferably between 3 ° and 7 °
    [0220] - Then the distance between torque and torque may be as desired in this particular case of 4 radiographs will be 90 ° so that we can make a complete 360 ° rotation
    [0221] - In this case the films would be generated automatically by assigning each shot made to the film corresponding to the eye that must see it. - For example, if we carry out the 4 radiographs at 0 °, 5 °, 90 ° and 95 ° we will obtain, without the need to perform them, the radiographs corresponding to 180 °, 185 °, 270 ° and 275 ° by simply flipping the first 4 180 ° on its axis of vertical symmetry.
    [0222] - Once we have the 8 radiographs, we assign.
    [0223] - One eye: 0 °, 90 °, 180 ° and 270 °
    [0224] - To the other eye: 5 °, 95 °, 185 ° and 275 °
    [0225] - That is, in the case of taking X-rays where the shots are not all taken with the same separation, it must be done under the following criteria.
    [0226] - one eye you take odd 1,3,5,7,9,11, _etc. etc.
    [0227] - The other eye takes pairs 2,4,6,8,10,12, ... etc. etc.
    [0228] - This ensures that a stereographic image is observed at all times, since the images have been obtained previously maintaining the distance established for the pairs of stereographic images between 1 ° and 12 °, preferably between 3 ° and 7 ° independently that the distance between a pair and the next one of radiographs is the distance that is wanted.
    [0229]
    [0230] Therefore, the general steps would be:
    [0231] - Making at least four radiographs corresponding to two pairs of stereographic images
    [0232] - Each pair of stereographic images will consist of 2 images that between shots will have a separation between 1 ° and 12 °, preferably between 3 ° and 7 °
    [0233] - Then the distance between torque is greater than the distance between the two radiographs of each pair.
    [0234] - Making the radiographs in the first 179 °
    [0235] - Obtaining the radiographs between 180 ° and 359 ° by simply turning 180 ° the radiographs taken between 0 ° and 179 °.
    [0236] - Assignment to one eye the odd shots and to the other eye the even shots or vice versa.
    [0237] In the fourth case that the stereoscopic film is carried out using an additional platform or a determined tooling in which the support platform of the object to be studied is rotated.
    [0238]
    [0239] As in the previous case, the turn that we consider appropriate, depending on how smooth we want the transition between frames, may be 1 ° in 1 ° but taking into account that the frames that we will use to make the films that will form the stereoscopic film, will maintain a separation between 1 ° and 12 ° depending on the depth you want to observe in the stereoscopic image.
    [0240]
    [0241] In any case, thanks to the peculiarity of the radiographs that offer a double side to take out a stereographic film, it would be enough to perform the radiographs until covering the 179 ° first degrees since for the rest it is enough to project the images on its other side, so We can consider that we have saved half of the radiographs to achieve the same stereographic result that would have been achieved with simple photographs.
    [0242]
    [0243] Figure 4 shows the construction scheme of a stereoscopic monitor equipped with a plotter, where we can see that it comprises a rear monitor (6), an upper monitor (5) in transverse arrangement with the rear and on which a plotter is deposed. (7) for moving the upper monitor (5) from right to left, and from front to back or vice versa. The set of both monitors is arranged on a base (8), it also has a rod (9) for signaling on the virtual image (10).
    [0244]
    [0245] As can be seen in Figure 5, the image 37 would be the same as the 1 but turned 180 ° and likewise the image 38 is like the 2 turned 180 ° and so on, so if we take the 0 °, that of 45 °, the 90 ° and the 135 ° We will also have no need to do the radiographs, the 180 °, the 225 °, the 270 ° and the 315 °.
    [0246]
    [0247] For the other film that will form stereoscopic images as we do The same procedure.
    [0248]
    [0249] We make the radiographs at 5 °, 50 °, 95 ° and 140 ° and from there we obtain those of 185 °, 230 °, 275 ° and 320 ° without needing to perform these radiographs.
    [0250]
    [0251] Figure 6 shows a possible simulation of a CT scan, where a series of frames obtained at 0 °, 45 °, 90 °, 135 ° appear in the top row, and where the frames 180 ° 225 °, 270 ° and 315 ° are the same frames obtained at 0 °, 45 °, 90 °, 135 ° but rotated 180 ° with respect to its vertical axis.
    [0252]
    [0253] In the lower row, the frames obtained with a 5 ° offset from the first and therefore at 5 °, 50 °, 95 ° and 140 ° are shown, while the frames of 185 °, 230 °, 275 ° and 320 ° are the same frames obtained at 5 °, 50 °, 95 ° and 140 °, but rotated 180 ° with respect to its vertical axis.
    [0254]
    [0255] Therefore, with 8 frames, corresponding to 4 pairs of stereoscopic images, 16 frames or 8 pairs of stereoscopic images are obtained allowing us to mount a film that simulates a CT scan.
    [0256]
    [0257] That is, with four pairs of stereoscopic images, a double stereoscopic view is obtained, one corresponding to the images viewed by one of its faces and the other viewed by rotating the images of the eight frames 180 ° with respect to its vertical axis.
    [0258]
    [0259] That is to say with the same set of radiographs it is possible to obtain a double view relative to the depth of positioning of the objects that are in the radiographed object and therefore an additional information, which made from normal images would force to double the number of Images to capture.
    [0260]
    [0261] If all the pairs of radiographs used for the conformation of each stereographic image are properly sequenced, it is possible to obtain a stereographic film of one of the faces of the object, and if these 180 ° rotated images are then projected, a stereographic film is obtained by the back face of the same object, being able to somewhat resemble a CT scan.
    [0262]
    [0263] Therefore, with the described procedure, double-view stereoscopic images are obtained that offer valuable information about the depth of the objects inside the radiated object, that is, a vision from the front and a view from the part. later, an effect that is achieved thanks to the use of radiographs, since otherwise to obtain a double view of the same set, one from the front and the other from the back, four images would have been needed, and with the procedure described, just Two x-rays
    [0264]
    [0265] In the case of at least eight radiographs, which correspond to four pairs of stereographic images, if these images are conveniently sequenced, a stereographic film can be obtained that can show a double view, one from the front and one from the back. of the same object, in a certain way imitating a CT (Computerized Axial Tomography), clearly with a smaller number of radiographs.
    [0266]
    [0267] With the procedure object of the invention, stereoscopic images are obtained that offer a double view and also offer additional information regarding the positioning of the existing objects inside the radiographed object, that is to say its depth, while if an object We make a series of photographs displaced longitudinally or rotating around the object to obtain a stereographic image and then rotate them 180 ° with respect to its axis of vertical symmetry. relative interior of the objects contained in its interior but we would obtain a stereographic image of the front and back of the photographed object without obtaining any information about the existence of interior objects to the photographed object and therefore also of the relative or deep position Dity of the interior objects that the photographed object could contain inside.
    [0268]
    [0269] Describe sufficiently the nature of the present invention, as well as the manner If it is put into practice, it is stated that, within its essentiality, it may be implemented in other embodiments that differ in detail from that indicated by way of example, and to which it will also achieve the protection sought, provided that does not alter, change or modify its fundamental principle.
    权利要求:
    Claims (12)
    [1]
    1. - Procedure to make stereoscopic double vision images characterized in that it comprises the steps of:
    - Perform at least two radiographs in the area under study, where said radiographs can be done in one of the following four ways:
    • Displacement of the Head of an X-ray tube longitudinally from left to right or from right to left or from front-back or back-forward.
    • Movement of the stretcher where the object to be studied is located longitudinally from left to right or from right to left or forward-backward or backward-forward
    • By rotating the X-ray tube-Sensor assembly, in a circular direction, that is to say clockwise or counterclockwise.
    • Using an additional platform or a determined tooling, which can be placed both in a flat position and in a vertical position to make a turn on itself it is also possible to rotate the object to be studied in a clockwise or anti-clockwise direction by keeping the emitter and the X-ray sensor in fixed position.
    The two radiographic images obtained will correspond to what should be visualized by the right eye and the other will be the image that should be visualized by the left eye.
    The two images are then displayed on a monitor.
    [2]
    2. - Procedure for making stereoscopic double vision images according to claim 1, characterized in that the displacement of the head of the X-ray tube or the stretcher where the object to be studied in the horizontal plane is located is a distance between 1 cm and 8 cm depending on the depth you want to observe in the stereoscopic image.
    [3]
    3. - Procedure for making stereoscopic double vision images according to claim 2 characterized in that the distance between the shots of the radiographic images corresponding to the right and left eye is between 3 and 6 cm.
    [4]
    4. - Procedure for making double-view stereoscopic images according to claim 1 characterized in that in the case that it is performed by rotating the X-ray tube in a circular direction or by rotating an additional platform in which the object to be studied is rotated with an angle of rotation between 1 ° and 12 ° depending on the depth you want to observe in the stereoscopic image.
    [5]
    5. - Procedure for making stereoscopic double vision images according to claim 4, characterized in that the rotation between the shots of the radiographic images corresponding to the right and left eye is between 3 ° and 7 °, where the two radiographic images obtained will correspond one to what should be visualized by the right eye and the other will be the image that should be visualized by the left eye.
    [6]
    6. - Procedure for making stereoscopic double vision images according to any of the preceding claims characterized in that the display monitor can be any of the following:
    - A stereoscopic monitor comprising two monitors, for the first time the two images are arranged on said monitors by one of their faces and then both images are arranged on said monitors by the other of the faces that is rotated 180 ° with respect to their vertical axis getting double viewing.
    - a conventional color monitor or any white projection screen by means of a projector, having previously converted the images into anaglyph, where said conventional monitor can be a color screen, a Tablet, a mobile or any device capable of reproducing color images, without the need for stereographic screens.
    - A sheet of white paper or any other type of support with a white background where you can print the image you want to see previously converted to anaglyph.
    - In a 3D device having previously passed the images to a “side-by-side” format or other format used by 3D devices.
    [7]
    7. - Procedure for making double-view stereoscopic images according to claim 6, characterized in that the stereoscopic monitor is provided by a set of vertical and horizontal guides as a plotter that will allow the monitor to move from left to right and from front to back or vice versa placed at the top, keeping the monitor on the backside or vice versa while in the case of placing the plotter on the rear monitor, the movement of the monitor is from top to bottom or from left to right or vice versa
    [8]
    8. - Procedure for making double-viewing stereoscopic films in the event that the separation of each pair of stereographic radiographs is greater than the distance between the two radiographs of each pair characterized in that it comprises the steps of:
    - Making at least four radiographs corresponding to two pairs of stereographic images
    - Each pair of stereographic images will consist of 2 images that between shots will have a separation between 1 ° and 12 °, preferably between 3 ° and 7 °
    - Then the distance between torque is greater than the distance between the two radiographs of each pair.
    - Making the radiographs in the first 179 °
    - Obtaining the radiographs between 180 ° and 359 ° by simply turning 180 ° the radiographs taken between 0 ° and 179 °.
    - Assignment to one eye the odd shots and to the other eye the even shots or vice versa.
    [9]
    9. - Procedure for generating double-viewing stereoscopic films according to claim 8, characterized in that 4 pairs of stereoscopic radiographs are used, these are performed at (0 °, 5 °) (45 °, 50 °) (90 °, 95 °) and (135 ° and 140 °), and those corresponding to (180 °, 185 °), (225 °, 230 °), (270 °, 275 °) and (315 ° and 320 °) are automatically generated and without need to do them just by turning them 180 °
    [10]
    10. - Procedure for making double viewing stereoscopic films characterized in that in the case that the distance between the radiographs is the same within the limits established between 1 ° and 12 ° preferably between 3 ° and 7 ° or between 1 and 8cm preferably between 3 cm and 6 cm it is characterized in that it comprises the stages of:
    - Application of the series of radiographs made to a Video distributor that has two outputs.
    - One of the outputs that comes from the Video distributor is applied to a video on / off circuit so that we do not have an output signal in the circuit until it receives the corresponding order, keeping the monitor associated with this output with The black screen.
    - The other output of the video distributor is applied to a buffer circuit which will be receiving that information and filling up, not giving a signal at its exit until receiving the corresponding order, therefore maintaining the monitor associated to its output with the black screen.
    - A timer circuit after the programmed time, or by frame count, will generate a trigger pulse that will be sent simultaneously to the video on / off circuit and to the buffer to activate its outputs.
    - Obtaining in one output the images that correspond to what the left eye should see and through the other output the images that the right eye should see.
    - Arrival of the information to the video distributor, said information appears simultaneously in the two outputs of the distributor and these in turn in the corresponding input of each circuit.
    Where all the previous stages generate a first view of the film, and to make the second view of the film, it is enough to have the other side of the images of the radiographs on the monitors.
    [11]
    11. Method of generating stereoscopic images from a monoscopic film according to the method according to any of claims 1 to 7 characterized in that it comprises the previous steps of:
    - Obtain the frames that form the monoscopic film,
    - Select the frames that meet the requirements of displacements between 1 ° and 12 °, preferably between 3 ° and 7 ° or between 1 and 8cm, preferably between 3 cm and 6 cm.
    - Generate the stereoscopic images according to any of claims 1 to 7,
    [12]
    12. Method of generating stereoscopic films from a monoscopic film made according to the method of claim 10 and the images obtained according to the method of claim 11 characterized in that it comprises the previous steps of:
    - Obtain the frames that form the monoscopic film,
    - Select the frames that meet the requirements of displacements between 1 ° and 12 °, preferably between 3 ° and 7 ° or between 1 and 8cm, preferably between 3 cm and 6 cm.
    - generating the stereoscopic film according to claim 10
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    同族专利:
    公开号 | 公开日
    WO2020008094A1|2020-01-09|
    ES2737452B2|2020-12-10|
    引用文献:
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    US20130230136A1|2011-08-25|2013-09-05|Toshiba Medical Systems Corporation|Medical image display apparatus and x-ray diagnosis apparatus|
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    PCT/ES2019/070466| WO2020008094A1|2018-07-04|2019-07-02|Method for producing double-view stereoscopic images and films|
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