US20100278301A1 - Stereoscopic x-ray system and method - Google Patents
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- US20100278301A1 US20100278301A1 US12/236,234 US23623408A US2010278301A1 US 20100278301 A1 US20100278301 A1 US 20100278301A1 US 23623408 A US23623408 A US 23623408A US 2010278301 A1 US2010278301 A1 US 2010278301A1
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/022—Stereoscopic imaging
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- the disclosed methods and systems relate to diagnostic imaging systems, and more specifically to systems and methods for obtaining stereoscopic x-ray images.
- X-ray technology has found many practical uses in medical, industrial, and scientific fields.
- One of the more familiar uses of x-rays is as a diagnostic tool in the fields of medicine and dentistry.
- x-rays are used to visualize anatomical structures and detect the presence of pathology, disease or abnormal anatomy.
- Advances in x-ray technology include the use of digital x-ray equipment, wherein images are captured digitally. The use of digital x-ray equipment can greatly reduce a patient's exposure to potentially harmful radiation, while providing sharper image detail and ease of processing.
- the method includes taking two digital x-ray views of the same object from differing positions.
- the included angle between the axes of the x-rays for each position generally coincides with that formed by a pair of eyes viewing the object, though larger angles can be used.
- the x-rays can be taken by two x-ray generators within a single housing or within separate but attached housings.
- the x-ray generators are spaced apart and aimed at the object to form the appropriate angle. Care is taken not to move the object.
- the x-ray generators have dual collimators to take the views. In this case, the time between taking the two x-rays need only be as long as the image capture time of the sensor being used, which lessens the chance of the object moving.
- the digital data from the sensor for each position is processed in the normal manner to provide an image of the object from each position.
- the two resulting images are displayed in a manner such that only the image corresponding to the viewer's eye position is received at that eye.
- Current methods of displaying three-dimensional (3D) images can be used.
- the images can be polarized and viewed through corresponding polarized eyeglasses.
- the images can be displayed on a 3D liquid crystal display (LCD) screen, such as the Sharp ActiusTM RD3D. On such screens, the two images are overlapped, but use separate pixels for each image.
- LCD liquid crystal display
- An LCD filter restricts the angle at which light from the pixels can be viewed, such that the image corresponding to the viewer's left eye can only be viewed by the left eye and vice versa.
- Other screens are formed with ridges that restrict the viewing angle for each pixel.
- Other means for viewing stereoscopic images include eyeglass video displays that present the separate images to the corresponding eye, or a 3D viewer using mirrors to reflect the corresponding image from two monitors to the respective eye of the viewer.
- a system for obtaining a stereoscopic x-ray image of a target includes at least one housing, a pair of spaced apart x-ray tubes within the at least one housing, each x-ray tube generating x-rays when energized, a collimator associated with each x-ray tube and a digital image sensor spaced opposite the target from the collimators.
- a longitudinal axis of each collimator is aligned between its associated x-ray tube and the target.
- Each collimator filters the x-rays from its associated x-ray tube such that x-rays not travelling towards the target are limited.
- the digital image sensor detects x-rays from the x-ray tubes and outputs sensor data for each x-ray tube for forming the stereoscopic x-ray image.
- the x-ray tubes may be located within a single housing.
- the system can include a processor in communication with the digital image sensor to receive the sensor data and output image data, and a display in communication with the processor to receive the image data and output the stereoscopic x-ray image for viewing.
- the display can further include a filter to restrict viewing of a portion of the stereoscopic x-ray image corresponding to x-rays detected by the sensor from one of the x-ray tubes to viewing from one eye of a viewer wherein a position of the eye with respect to the display corresponding to a position of the one of the x-ray tubes with respect to the object.
- the display can be a liquid crystal display and the filter can restrict an angle at which light from a pixel of the liquid crystal display can be viewed.
- the display can be an eyeglass display having a separate display for each eye of a viewer, wherein each display presents a portion of the stereoscopic x-ray image corresponding to x-rays detected at the sensor from one of the x-ray tubes.
- a transformer can convert incoming power to a voltage differential required to energize the x-ray tubes to emit x-rays.
- a power switch can be configured to limit the incoming power.
- a transfer switch can be configured to transfer energizing power from one x-ray tube to the other x-ray tube.
- a timer can be configured to activate the transfer switch.
- a method of obtaining a stereoscopic x-ray image of a target can include energizing a first x-ray tube to emit x-rays in a direction towards the target, energizing a second x-ray tube spaced apart from the first x-ray tube to emit x-rays in a direction towards the target, detecting emitted x-rays at a sensor to obtain sensor data, processing the sensor data to obtain image data and displaying the image data to provide a stereoscopic x-ray image of the target.
- the method can include maintaining the positions of the first and second x-ray tubes, the sensor and the target during energizing and detecting.
- the method can include connecting to a power supply and transforming power from the power supply to provide a differential voltage at the x-ray tubes sufficient to energize the x-ray tubes.
- the method can include limiting the power from the power supply to that required for energizing the first and the second x-ray tubes.
- detecting can include downloading the sensor data obtained by detecting the x-rays emitted from the first x-ray tube to a processor and downloading the sensor data obtained by detecting the x-rays emitted from the second x-ray tube to the processor.
- power to the first x-ray tube may be cut and the sensor data obtained by detecting the x-rays emitted from the first x-ray tube can be cleared from the sensor.
- displaying can include filtering the stereoscopic x-ray image to restrict viewing of a portion of the stereoscopic x-ray image corresponding to x-rays detected by the sensor from one of the x-ray tubes to viewing from one eye of a viewer at a position of the eye with respect to the display corresponding to a position of the one of the x-ray tubes with respect to the object.
- Filtering can include restricting an angle at which light from a pixel of a liquid crystal display can be viewed.
- displaying can include displaying a first portion of the stereoscopic x-ray image corresponding to x-rays detected by the sensor from the first x-ray tube to a first eye of a viewer and displaying a second portion of the stereoscopic x-ray image corresponding to x-rays detected by the sensor from the second x-ray tube to a second eye of the viewer.
- FIG. 1 is a schematic representation of a stereoscopic x-ray system
- FIG. 2 is a block diagram of a method for providing stereoscopic x-ray images.
- the illustrated embodiments can be understood as providing exemplary features of varying detail, and therefore, unless otherwise specified, features, components, modules, and/or aspects of the illustrations can be otherwise combined, separated, interchanged, and/or rearranged without departing from the disclosed systems or methods. Additionally, the shapes and sizes of components are also exemplary and unless otherwise specified, can be altered without affecting the disclosed systems or methods. Throughout the entirety of the present disclosure, use of the articles “a” or “an” to modify a noun can be understood to be used for convenience and to include one, or more than one of the modified noun, unless otherwise specifically stated.
- FIG. 1 illustrates a schematic representation of a system 10 for producing stereoscopic x-ray images.
- a transformer 12 within housing 14 of system 10 is connected to a power supply 3 via power switch 16 .
- Power switch 16 may be remotely located so as not to expose an operator to radiation.
- Transformer 12 converts incoming power from power supply 3 to provide a high voltage differential across the electrode pairs (not shown) of x-ray tubes 18 a and 18 b.
- X-ray tubes 18 a, 18 b operate in the manner of known x-ray tubes to emit x-rays. For example, current to the cathode of the electrode pair heats a filament, which sputters electrons to a tungsten anode at high speed.
- Transfer switch 20 can transfer current from x-ray tube 18 a to x-ray tube 18 b and vice versa.
- Switch 20 can include timer 22 for automatic transfer of current.
- Collimator tubes 24 a, 24 b absorb unwanted x-rays to effectively limit the emitted x-rays to a direction along their longitudinal axes 26 a, 26 b. In this manner, the emitted x-rays are filtered so that only those travelling essentially parallel to axes 26 a, 26 b and generally convergent on target 5 are allowed through the collimator tubes 24 a, 24 b. Pure aluminum disks 28 a, 28 b may be placed in the path of the x-ray beams to filter out low energy x-rays whose wave lengths are such that they would not penetrate the object and hence would not be useful for producing images.
- the two resulting images 36 a, 36 b are displayed in a manner such that only the image for the x-ray tube corresponding to the viewer's eye position is received at that eye, thus providing a 3D image 36 to the user.
- the images can be polarized and/or colored and viewed through corresponding polarized and/or colored eyeglasses.
- the images can be displayed on a 3D LCD screen, such as the Sharp ActiusTM RD3D. On such screens, the two images are overlapped, but use separate pixels for each image.
- FIG. 2 is a block diagram of a method 100 by which system 10 provides stereoscopic x-ray images for viewing.
- X-ray system 10 is activated ( 102 ) using power switch 16 .
- current flows ( 104 ) to transformer 12 .
- Power switch 16 may limit the amount of current that flows to transformer 12 to that required for system 10 to obtain the image data for forming the stereoscopic image.
- Power switch 16 may work in conjunction with transfer switch 20 and timer 22 to limit the total time of exposure, i.e., the time during which the object 5 is exposed to x-rays.
- Transformer 12 converts ( 106 ) the incoming power to provide the necessary high voltage differential across the electrode pairs of a first of the x-ray tubes 18 a, 18 b so as to energize ( 108 ) the tube.
- x-ray tube 18 a being the first energized x-ray tube
- x-ray tube 18 b being the second energized x-ray tube. It will be understood that the order in which the x-ray tubes are energized does not affect the operation of the systems or methods described.
- switch 20 When x-ray tube 18 a has been energized for a time sufficient to obtain sensor data at image sensor 28 for forming a digital image, as determined by timer 22 at block 110 , switch 20 is activated to cut power to x-ray tube 18 a, as at block 112 .
- Image sensor 28 may download ( 114 ) the sensor data obtained from x-rays emanating from x-ray tube 18 a to processor 30 .
- switch 20 is activated ( 118 ) such that the output from transformer 12 is directed to x-ray tube 18 b to energize x-ray tube 18 b ( 120 ).
- switch 20 When x-ray tube 18 b has been energized for a time sufficient to obtain sensor data at image sensor 28 for forming a digital image, as determined by timer 22 at block 122 , switch 20 is activated to cut power to x-ray tube 18 b, as at block 124 .
- Timer 22 may operate in conjunction with switch 16 to limit power to transformer 12 , such that when power to x-ray tube 18 b is cut, switch 16 may be activated to cut power to transformer 12 , as indicated by dashed block 126 .
- Switch 16 may independently cut power to transformer 12 after a preset amount of time as a fail-safe measure.
- Image sensor 28 may download ( 128 ) the sensor data obtained from x-rays emanating from x-ray tube 18 b to processor 30 .
- downloading of the sensor data from image sensor 28 to processor 30 (blocks 114 , 128 ) is shown following the cutting of power to x-ray tubes 18 a, 18 b.
- image sensor 28 may download the sensor data to processor 30 while x-ray tubes 18 a, 18 b are energized or both during and after x-ray tubes 18 a, 18 b are energized.
- Processor 30 processes ( 130 ) the sensor data to obtain image data corresponding to a two-dimensional x-ray image for x-ray tube 18 a and a two-dimensional x-ray image for x-ray tube 18 b.
- the image data is forwarded ( 132 ) to display 36 .
- display 36 uses the image data from processor 30 , display 36 displays ( 134 ) the image data such that a viewer perceives a 3D x-ray image of the target, as described with relation to display 36 .
- timer 22 can be configured with power switch 16 , or separately along power line 40 feeding transformer 12 .
- x-ray tubes 24 a, 24 b may each be located within a housing that may be attached together to form housing 14 .
- each x-ray tube 24 a, 24 b may have its own transformer 12 and transfer switch 20 may be configured with power switch 16 to transfer power between the transformers 12 .
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Abstract
Disclosed are systems and methods for obtaining stereoscopic x-ray images. The method includes taking two digital x-ray views of the same object from differing positions. The included angle between the axes of the x-rays for each position generally coincides with that formed by a pair of eyes viewing the object, though larger angles can be used. The x-rays can be taken by two x-ray generators within a single housing or within separate but attached housings. The generators are spaced apart and aimed at the object to form the appropriate angle. Care is taken not to move the object. Preferably, the x-ray generators have dual collimators to take the views. In this case, the time between taking the two x-rays need only be as long as the image capture time of the sensor being used, which lessens the chance of the object moving.
Description
- The present application claims the benefit of U.S. Utility patent application Ser. No. 11/539,007, which was filed Oct. 5, 2006, entitled “STEREOSCOPIC X-RAY SYSTEM AND METHOD,” by Bassel Kano, which is hereby incorporated by reference.
- The disclosed methods and systems relate to diagnostic imaging systems, and more specifically to systems and methods for obtaining stereoscopic x-ray images.
- X-ray technology has found many practical uses in medical, industrial, and scientific fields. One of the more familiar uses of x-rays is as a diagnostic tool in the fields of medicine and dentistry. As such, x-rays are used to visualize anatomical structures and detect the presence of pathology, disease or abnormal anatomy. Advances in x-ray technology include the use of digital x-ray equipment, wherein images are captured digitally. The use of digital x-ray equipment can greatly reduce a patient's exposure to potentially harmful radiation, while providing sharper image detail and ease of processing.
- However, the usefulness of x-ray technology has been limited by the difficulty in providing three-dimensional information of the object being examined. Studies in the field of dentistry have shown that for a more accurate diagnosis, two or three radiographs taken at different angles are necessary. Those radiographs are conventionally viewed individually by the examiner and processed and compared in the examiner's brain to be visualized in 3 dimensions.
- Several systems have been devised to obtain three dimensional information, including transmission X-ray microscopes and Computerized Axial Tomography (CAT) scanners. These systems combine x-ray transmission systems with tomographical reconstruction methods to enable recreation of three-dimensional information from sets of flat cross-sectional images. The systems rely on a large number of different cross-sectional images of an object taken from many different angles. The digital image data is processed in a computer to yield a three-dimensional picture that can display the object being examined in great detail.
- The systems, however, are complicated and generally expensive, making them somewhat inaccessible and unaffordable. In addition, the amount of the radiation necessary to produce a CAT image is very high compared to standard two-dimensional images. What is needed, then, is a system and method for extracting three-dimensional information from two-dimensional x-ray images that is relatively simple to use, is accessible and affordable, yet provides limited exposure of a patient or other object to radiation.
- Disclosed are systems and methods for obtaining stereoscopic x-ray images. The method includes taking two digital x-ray views of the same object from differing positions. The included angle between the axes of the x-rays for each position generally coincides with that formed by a pair of eyes viewing the object, though larger angles can be used. The x-rays can be taken by two x-ray generators within a single housing or within separate but attached housings. The x-ray generators are spaced apart and aimed at the object to form the appropriate angle. Care is taken not to move the object. Preferably, the x-ray generators have dual collimators to take the views. In this case, the time between taking the two x-rays need only be as long as the image capture time of the sensor being used, which lessens the chance of the object moving.
- The digital data from the sensor for each position is processed in the normal manner to provide an image of the object from each position. The two resulting images are displayed in a manner such that only the image corresponding to the viewer's eye position is received at that eye. Current methods of displaying three-dimensional (3D) images can be used. For example, the images can be polarized and viewed through corresponding polarized eyeglasses. Preferably, the images can be displayed on a 3D liquid crystal display (LCD) screen, such as the Sharp Actius™ RD3D. On such screens, the two images are overlapped, but use separate pixels for each image. An LCD filter restricts the angle at which light from the pixels can be viewed, such that the image corresponding to the viewer's left eye can only be viewed by the left eye and vice versa. Other screens are formed with ridges that restrict the viewing angle for each pixel. Other means for viewing stereoscopic images include eyeglass video displays that present the separate images to the corresponding eye, or a 3D viewer using mirrors to reflect the corresponding image from two monitors to the respective eye of the viewer.
- In one embodiment, a system for obtaining a stereoscopic x-ray image of a target includes at least one housing, a pair of spaced apart x-ray tubes within the at least one housing, each x-ray tube generating x-rays when energized, a collimator associated with each x-ray tube and a digital image sensor spaced opposite the target from the collimators. A longitudinal axis of each collimator is aligned between its associated x-ray tube and the target. Each collimator filters the x-rays from its associated x-ray tube such that x-rays not travelling towards the target are limited. The digital image sensor detects x-rays from the x-ray tubes and outputs sensor data for each x-ray tube for forming the stereoscopic x-ray image. In some aspects, the x-ray tubes may be located within a single housing.
- In one aspect, the system can include a processor in communication with the digital image sensor to receive the sensor data and output image data, and a display in communication with the processor to receive the image data and output the stereoscopic x-ray image for viewing. The display can further include a filter to restrict viewing of a portion of the stereoscopic x-ray image corresponding to x-rays detected by the sensor from one of the x-ray tubes to viewing from one eye of a viewer wherein a position of the eye with respect to the display corresponding to a position of the one of the x-ray tubes with respect to the object. The display can be a liquid crystal display and the filter can restrict an angle at which light from a pixel of the liquid crystal display can be viewed. The display can be an eyeglass display having a separate display for each eye of a viewer, wherein each display presents a portion of the stereoscopic x-ray image corresponding to x-rays detected at the sensor from one of the x-ray tubes.
- A transformer can convert incoming power to a voltage differential required to energize the x-ray tubes to emit x-rays. A power switch can be configured to limit the incoming power. A transfer switch can be configured to transfer energizing power from one x-ray tube to the other x-ray tube. A timer can be configured to activate the transfer switch.
- In one embodiment, a method of obtaining a stereoscopic x-ray image of a target can include energizing a first x-ray tube to emit x-rays in a direction towards the target, energizing a second x-ray tube spaced apart from the first x-ray tube to emit x-rays in a direction towards the target, detecting emitted x-rays at a sensor to obtain sensor data, processing the sensor data to obtain image data and displaying the image data to provide a stereoscopic x-ray image of the target. In some aspects, the method can include maintaining the positions of the first and second x-ray tubes, the sensor and the target during energizing and detecting.
- The method can include connecting to a power supply and transforming power from the power supply to provide a differential voltage at the x-ray tubes sufficient to energize the x-ray tubes. The method can include limiting the power from the power supply to that required for energizing the first and the second x-ray tubes.
- In one aspect, detecting can include downloading the sensor data obtained by detecting the x-rays emitted from the first x-ray tube to a processor and downloading the sensor data obtained by detecting the x-rays emitted from the second x-ray tube to the processor. Prior to energizing the second x-ray tube, power to the first x-ray tube may be cut and the sensor data obtained by detecting the x-rays emitted from the first x-ray tube can be cleared from the sensor.
- In one aspect, displaying can include filtering the stereoscopic x-ray image to restrict viewing of a portion of the stereoscopic x-ray image corresponding to x-rays detected by the sensor from one of the x-ray tubes to viewing from one eye of a viewer at a position of the eye with respect to the display corresponding to a position of the one of the x-ray tubes with respect to the object. Filtering can include restricting an angle at which light from a pixel of a liquid crystal display can be viewed.
- In one aspect, displaying can include displaying a first portion of the stereoscopic x-ray image corresponding to x-rays detected by the sensor from the first x-ray tube to a first eye of a viewer and displaying a second portion of the stereoscopic x-ray image corresponding to x-rays detected by the sensor from the second x-ray tube to a second eye of the viewer.
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FIG. 1 is a schematic representation of a stereoscopic x-ray system; and -
FIG. 2 is a block diagram of a method for providing stereoscopic x-ray images. - To provide an overall understanding, certain illustrative embodiments will now be described; however, it will be understood by one of ordinary skill in the art that the apparatus described herein can be adapted and modified to provide apparatus for other suitable applications and that other additions and modifications can be made without departing from the scope of the systems and methods described herein.
- Unless otherwise specified, the illustrated embodiments can be understood as providing exemplary features of varying detail, and therefore, unless otherwise specified, features, components, modules, and/or aspects of the illustrations can be otherwise combined, separated, interchanged, and/or rearranged without departing from the disclosed systems or methods. Additionally, the shapes and sizes of components are also exemplary and unless otherwise specified, can be altered without affecting the disclosed systems or methods. Throughout the entirety of the present disclosure, use of the articles “a” or “an” to modify a noun can be understood to be used for convenience and to include one, or more than one of the modified noun, unless otherwise specifically stated.
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FIG. 1 illustrates a schematic representation of asystem 10 for producing stereoscopic x-ray images. Atransformer 12 withinhousing 14 ofsystem 10 is connected to apower supply 3 viapower switch 16.Power switch 16 may be remotely located so as not to expose an operator to radiation.Transformer 12 converts incoming power frompower supply 3 to provide a high voltage differential across the electrode pairs (not shown) ofx-ray tubes X-ray tubes Transfer switch 20 can transfer current fromx-ray tube 18 a tox-ray tube 18 b and vice versa.Switch 20 can includetimer 22 for automatic transfer of current. -
Collimator tubes longitudinal axes axes target 5 are allowed through thecollimator tubes Pure aluminum disks Image sensor 30 digitally captures the x-ray photons passing throughobject 5 and the digital sensor data captured bysensor 30 is input to processor 32 (as illustrated by arrow 34).Processor 32 processes the sensor data obtained from eachx-ray tube dimensional images display 38. - The two resulting
images 3D image 36 to the user. Known methods for displaying 3D images may be utilized. For example, the images can be polarized and/or colored and viewed through corresponding polarized and/or colored eyeglasses. Preferably, the images can be displayed on a 3D LCD screen, such as the Sharp Actius™ RD3D. On such screens, the two images are overlapped, but use separate pixels for each image. An LCD filter restricts the angle at which light from the pixels can be viewed, such that the image corresponding to the viewer's left eye can only be viewed by the left eye and vice versa. Other types of displays include screens formed with ridges that restrict the viewing angle for each pixel; eyeglass video displays that present the separate images to the corresponding eye; 3D viewers using mirrors to reflect the corresponding image from two monitors to the respective eye of the viewer; and other means as are known in the art. -
FIG. 2 is a block diagram of amethod 100 by whichsystem 10 provides stereoscopic x-ray images for viewing.X-ray system 10 is activated (102) usingpower switch 16. Whensystem 10 is activated, current flows (104) totransformer 12.Power switch 16 may limit the amount of current that flows totransformer 12 to that required forsystem 10 to obtain the image data for forming the stereoscopic image.Power switch 16 may work in conjunction withtransfer switch 20 andtimer 22 to limit the total time of exposure, i.e., the time during which theobject 5 is exposed to x-rays.Transformer 12 converts (106) the incoming power to provide the necessary high voltage differential across the electrode pairs of a first of thex-ray tubes x-ray tube 18 a being the first energized x-ray tube andx-ray tube 18 b being the second energized x-ray tube. It will be understood that the order in which the x-ray tubes are energized does not affect the operation of the systems or methods described. - When
x-ray tube 18 a has been energized for a time sufficient to obtain sensor data at image sensor 28 for forming a digital image, as determined bytimer 22 atblock 110, switch 20 is activated to cut power to x-raytube 18 a, as atblock 112. Image sensor 28 may download (114) the sensor data obtained from x-rays emanating fromx-ray tube 18 a toprocessor 30. After a time sufficient for image sensor 28 to clear, as determined bytimer 22 atblock 116, switch 20 is activated (118) such that the output fromtransformer 12 is directed to x-raytube 18 b to energizex-ray tube 18 b (120). - When
x-ray tube 18 b has been energized for a time sufficient to obtain sensor data at image sensor 28 for forming a digital image, as determined bytimer 22 atblock 122, switch 20 is activated to cut power to x-raytube 18 b, as atblock 124.Timer 22 may operate in conjunction withswitch 16 to limit power totransformer 12, such that when power to x-raytube 18 b is cut, switch 16 may be activated to cut power totransformer 12, as indicated by dashedblock 126.Switch 16 may independently cut power totransformer 12 after a preset amount of time as a fail-safe measure. - Image sensor 28 may download (128) the sensor data obtained from x-rays emanating from
x-ray tube 18 b toprocessor 30. For illustration purposes, downloading of the sensor data from image sensor 28 to processor 30 (blocks 114, 128) is shown following the cutting of power to x-raytubes processor 30, image sensor 28 may download the sensor data toprocessor 30 whilex-ray tubes x-ray tubes -
Processor 30 processes (130) the sensor data to obtain image data corresponding to a two-dimensional x-ray image forx-ray tube 18 a and a two-dimensional x-ray image forx-ray tube 18 b. The image data is forwarded (132) todisplay 36. Using the image data fromprocessor 30,display 36 displays (134) the image data such that a viewer perceives a 3D x-ray image of the target, as described with relation to display 36. - Although the stereoscopic x-ray system and method have been described relative to specific embodiments thereof, they are not so limited. Obviously many modifications and variations may become apparent in light of the above teachings. For example,
timer 22 can be configured withpower switch 16, or separately alongpower line 40feeding transformer 12. Alternately,x-ray tubes housing 14. Similarly, eachx-ray tube own transformer 12 andtransfer switch 20 may be configured withpower switch 16 to transfer power between thetransformers 12. Elements, components, modules, and/or parts thereof that are described and/or otherwise portrayed through the figures to communicate with, be associated with, and/or be based on, something else, can be understood to so communicate, be associated with, and or be based on in a direct and/or indirect manner, unless otherwise stipulated herein. - Many additional changes in the details, materials, and arrangement of parts, herein described and illustrated, can be made by those skilled in the art.
Claims (9)
1. A method of obtaining a stereoscopic x-ray image of a target, comprising:
energizing a first x-ray tube to emit x-rays in a direction towards the target;
energizing a second x-ray tube spaced apart from the first x-ray tube to emit x-rays in a direction towards the target;
detecting emitted x-rays at a sensor to obtain sensor data;
processing the sensor data to obtain image data; and
displaying the image data to provide a stereoscopic x-ray image of the target, wherein the image data does not include information from prior 3-D images; and wherein the stereoscopic x-ray image of the target does not include information from prior 3-D images.
2. The method of claim 1 , further comprising:
connecting to a power supply; and
transforming power from the power supply to provide a differential voltage at the x-ray tubes sufficient to energize the x-ray tubes.
3. The method of claim 2 , comprising limiting the power from the power supply to that required for energizing the first and the second x-ray tubes.
4. The method of claim 1 , wherein detecting comprises:
downloading the sensor data obtained by detecting the x-rays emitted from the first x-ray tube to a processor; and
downloading the sensor data obtained by detecting the x-rays emitted from the second x-ray tube to the processor.
5. The method of claim 1 , further comprising:
prior to energizing the second x-ray tube, cutting power to the first x-ray tube; and
clearing the sensor data obtained by detecting the x-rays emitted from the first x-ray tube from the sensor.
6. The method of claim 1 wherein displaying comprises filtering the stereoscopic x-ray image to restrict viewing of a portion of the stereoscopic x-ray image corresponding to x-rays detected by the sensor from one of the x-ray tubes to viewing from one eye of a viewer at a position of the eye with respect to the display corresponding to a position of the one of the x-ray tubes with respect to the object.
7. The method of claim 6 , wherein filtering comprises restricting an angle at which light from a pixel of a liquid crystal display can be viewed.
8. The method of claim 1 wherein displaying comprises:
displaying a first portion of the stereoscopic x-ray image corresponding to x-rays detected by the sensor from the first x-ray tube to a first eye of a viewer; and
displaying a second portion of the stereoscopic x-ray image corresponding to x-rays detected by the sensor from the second x-ray tube to a second eye of the viewer.
9. The method of claim 1 , further comprising maintaining the positions of the first and second x-ray tubes, the sensor and the target during energizing and detecting.
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US12/236,234 US20100278301A1 (en) | 2006-10-05 | 2008-09-23 | Stereoscopic x-ray system and method |
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EP (1) | EP2076176A4 (en) |
JP (1) | JP2010505546A (en) |
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CA (1) | CA2664856A1 (en) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100104150A1 (en) * | 2008-10-24 | 2010-04-29 | Biospace Med | Measurement of geometric quantities intrinsic to an anatomical system |
US9414788B2 (en) | 2012-12-28 | 2016-08-16 | Samsung Electronics Co., Ltd. | X-ray imaging apparatus and method of generating stereoscopic image |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8255071B2 (en) * | 2008-11-13 | 2012-08-28 | Innovative Health Technologies, Llc | Method and system for forming a dental prosthesis |
JP5666967B2 (en) * | 2011-04-08 | 2015-02-12 | 株式会社東芝 | Medical image processing system, medical image processing apparatus, medical image diagnostic apparatus, medical image processing method, and medical image processing program |
KR20120138473A (en) | 2011-06-15 | 2012-12-26 | 삼성전자주식회사 | Method and system for providing stereoscopic x-ray image |
DE102011081550B4 (en) | 2011-08-25 | 2013-10-10 | Siemens Aktiengesellschaft | Method and apparatus for stereoscopic X-ray imaging |
US8855393B2 (en) | 2012-05-02 | 2014-10-07 | Jonathan D. Bultema | Three-dimensional X-ray imaging techniques and devices |
KR102033600B1 (en) * | 2012-10-19 | 2019-11-11 | 삼성전자주식회사 | Method and apparatus for measuring medical information providing 3-dimensional stereoscopic image |
KR101770282B1 (en) * | 2016-04-26 | 2017-08-23 | 서울대학교병원 | Apparatus for live stereovision fluoroscopy |
US10015872B2 (en) * | 2016-07-27 | 2018-07-03 | Avonix Imaging, LLC | Shifting mechanism for dual x-ray tube imaging system |
FR3073290B1 (en) | 2017-11-09 | 2020-02-14 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | DEVICE AND METHOD FOR THREE-DIMENSIONAL INSPECTION OF AN OBJECT BY X-RAYS |
AU2020241168A1 (en) * | 2019-03-15 | 2021-10-28 | Robotic Technologies Limited | X-ray imaging system, method and shutter |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3783282A (en) * | 1971-06-07 | 1974-01-01 | R Hoppenstein | Stereoscopic radiography techniques and apparatus |
US5448610A (en) * | 1993-02-09 | 1995-09-05 | Hitachi Medical Corporation | Digital X-ray photography device |
US6317481B1 (en) * | 1999-10-27 | 2001-11-13 | Canon Kabushiki Kaisha | Stereo x-ray image processing |
US6405071B1 (en) * | 2000-02-10 | 2002-06-11 | Advanced Research And Technology | Three dimensional imaging and analysis of a root canal |
US20030031291A1 (en) * | 2000-04-18 | 2003-02-13 | Yoshimichi Yamamoto | X-ray apparatus |
US20030117702A1 (en) * | 2000-08-04 | 2003-06-26 | Johannes Winterot | Optical arrangement for producing stereoscopic images |
US6904122B2 (en) * | 2001-10-31 | 2005-06-07 | Inventqjaya Sdn. Bhd. | 3D stereoscopic X-ray system |
US20050123180A1 (en) * | 2003-12-09 | 2005-06-09 | Eastman Kodak Company | Tooth locating within dental images |
US20050207529A1 (en) * | 2004-03-22 | 2005-09-22 | Siemens Aktiengesellschaft | Method and device for medical imaging |
US7027642B2 (en) * | 2000-04-28 | 2006-04-11 | Orametrix, Inc. | Methods for registration of three-dimensional frames to create three-dimensional virtual models of objects |
US7227925B1 (en) * | 2002-10-02 | 2007-06-05 | Varian Medical Systems Technologies, Inc. | Gantry mounted stereoscopic imaging system |
US7369641B2 (en) * | 2005-02-01 | 2008-05-06 | Canon Kabushiki Kaisha | Photographing apparatus and three-dimensional image generating apparatus |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2730566A (en) * | 1949-12-27 | 1956-01-10 | Bartow Beacons Inc | Method and apparatus for x-ray fluoroscopy |
US4166231A (en) * | 1977-10-07 | 1979-08-28 | The Machlett Laboratories, Inc. | Transverse beam x-ray tube |
FI64999C (en) * | 1980-09-22 | 1984-02-10 | Instrumentarium Oy | SPALTKOLLIMATOR FOER PANORAMAROENTGENAVBILDNINGSANORDNING |
US4737972A (en) * | 1982-02-24 | 1988-04-12 | Arnold Schoolman | Stereoscopic fluoroscope arrangement |
JPS58152542A (en) | 1982-03-05 | 1983-09-10 | 株式会社東芝 | X-ray diagnostic apparatus |
US4696022A (en) * | 1984-01-27 | 1987-09-22 | University Of Pittsburgh | Stereoscopic radiography apparatus and method |
JPS6433899A (en) * | 1987-07-29 | 1989-02-03 | Hitachi Medical Corp | Stereo x-ray device |
DE4130039A1 (en) * | 1991-09-10 | 1993-03-11 | Philips Patentverwaltung | X=ray beam expander used in computer tomograph - has beam shaping aperture formed by confinement bodies |
JPH06173325A (en) * | 1992-12-03 | 1994-06-21 | Inax Corp | Toilet bowl |
JPH1051813A (en) * | 1996-07-29 | 1998-02-20 | Toshiba Corp | X-ray stereoscopic image display device |
GB2321815A (en) * | 1997-02-04 | 1998-08-05 | Sharp Kk | Autostereoscopic display with viewer position indicator |
JPH10146330A (en) * | 1996-11-21 | 1998-06-02 | Toshiba Corp | X-ray stereoscopic image display device |
US6256372B1 (en) | 1999-03-16 | 2001-07-03 | General Electric Company | Apparatus and methods for stereo radiography |
US6181768B1 (en) * | 1999-06-04 | 2001-01-30 | Leonard F. Berliner | Radiological image acquisition and manipulation system for multiple view stereoscopic imaging |
JP2005000261A (en) * | 2003-06-10 | 2005-01-06 | Fuji Photo Film Co Ltd | Radiographic image forming method and radiographic equipment |
JP2005215161A (en) * | 2004-01-28 | 2005-08-11 | Sanyo Electric Co Ltd | Frame device for attachment of filter for stereoscopic vision and display |
-
2006
- 2006-10-05 US US11/539,007 patent/US7440540B2/en not_active Expired - Fee Related
-
2007
- 2007-10-04 WO PCT/US2007/080448 patent/WO2008043020A2/en active Application Filing
- 2007-10-04 KR KR1020097009090A patent/KR20090106384A/en not_active Application Discontinuation
- 2007-10-04 DE DE112007002364T patent/DE112007002364T5/en not_active Withdrawn
- 2007-10-04 JP JP2009531610A patent/JP2010505546A/en active Pending
- 2007-10-04 CA CA002664856A patent/CA2664856A1/en not_active Abandoned
- 2007-10-04 EP EP07843839A patent/EP2076176A4/en not_active Ceased
-
2008
- 2008-09-23 US US12/236,234 patent/US20100278301A1/en not_active Abandoned
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3783282A (en) * | 1971-06-07 | 1974-01-01 | R Hoppenstein | Stereoscopic radiography techniques and apparatus |
US5448610A (en) * | 1993-02-09 | 1995-09-05 | Hitachi Medical Corporation | Digital X-ray photography device |
US6317481B1 (en) * | 1999-10-27 | 2001-11-13 | Canon Kabushiki Kaisha | Stereo x-ray image processing |
US6405071B1 (en) * | 2000-02-10 | 2002-06-11 | Advanced Research And Technology | Three dimensional imaging and analysis of a root canal |
US20030031291A1 (en) * | 2000-04-18 | 2003-02-13 | Yoshimichi Yamamoto | X-ray apparatus |
US7027642B2 (en) * | 2000-04-28 | 2006-04-11 | Orametrix, Inc. | Methods for registration of three-dimensional frames to create three-dimensional virtual models of objects |
US20030117702A1 (en) * | 2000-08-04 | 2003-06-26 | Johannes Winterot | Optical arrangement for producing stereoscopic images |
US6904122B2 (en) * | 2001-10-31 | 2005-06-07 | Inventqjaya Sdn. Bhd. | 3D stereoscopic X-ray system |
US7227925B1 (en) * | 2002-10-02 | 2007-06-05 | Varian Medical Systems Technologies, Inc. | Gantry mounted stereoscopic imaging system |
US20050123180A1 (en) * | 2003-12-09 | 2005-06-09 | Eastman Kodak Company | Tooth locating within dental images |
US20050207529A1 (en) * | 2004-03-22 | 2005-09-22 | Siemens Aktiengesellschaft | Method and device for medical imaging |
US7035371B2 (en) * | 2004-03-22 | 2006-04-25 | Siemens Aktiengesellschaft | Method and device for medical imaging |
US7369641B2 (en) * | 2005-02-01 | 2008-05-06 | Canon Kabushiki Kaisha | Photographing apparatus and three-dimensional image generating apparatus |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100104150A1 (en) * | 2008-10-24 | 2010-04-29 | Biospace Med | Measurement of geometric quantities intrinsic to an anatomical system |
US8705817B2 (en) * | 2008-10-24 | 2014-04-22 | Eos Imaging | Measurement of geometric quantities intrinsic to an anatomical system |
US9414788B2 (en) | 2012-12-28 | 2016-08-16 | Samsung Electronics Co., Ltd. | X-ray imaging apparatus and method of generating stereoscopic image |
Also Published As
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US20080095308A1 (en) | 2008-04-24 |
EP2076176A4 (en) | 2010-09-01 |
DE112007002364T5 (en) | 2009-08-13 |
WO2008043020A2 (en) | 2008-04-10 |
WO2008043020A3 (en) | 2008-12-31 |
CA2664856A1 (en) | 2008-04-10 |
US7440540B2 (en) | 2008-10-21 |
EP2076176A2 (en) | 2009-07-08 |
JP2010505546A (en) | 2010-02-25 |
KR20090106384A (en) | 2009-10-08 |
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