US20120224026A1 - System and method for producing and improving images - Google Patents
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- US20120224026A1 US20120224026A1 US13/467,909 US201213467909A US2012224026A1 US 20120224026 A1 US20120224026 A1 US 20120224026A1 US 201213467909 A US201213467909 A US 201213467909A US 2012224026 A1 US2012224026 A1 US 2012224026A1
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- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0625—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements for multiple fixed illumination angles
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- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
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- A61B1/00002—Operational features of endoscopes
- A61B1/00043—Operational features of endoscopes provided with output arrangements
- A61B1/00045—Display arrangement
- A61B1/0005—Display arrangement combining images e.g. side-by-side, superimposed or tiled
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- A61B1/00163—Optical arrangements
- A61B1/00174—Optical arrangements characterised by the viewing angles
- A61B1/00179—Optical arrangements characterised by the viewing angles for off-axis viewing
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- A61B1/00163—Optical arrangements
- A61B1/00174—Optical arrangements characterised by the viewing angles
- A61B1/00181—Optical arrangements characterised by the viewing angles for multiple fixed viewing angles
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
- A61B1/0125—Endoscope within endoscope
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- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/045—Control thereof
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- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
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- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
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- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0661—Endoscope light sources
- A61B1/0676—Endoscope light sources at distal tip of an endoscope
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- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2423—Optical details of the distal end
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- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
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- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
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Abstract
A method for displaying images includes adjusting at least one characteristic of an image from a first imaging device of an endoscope to match at least one corresponding characteristic of an image from a second imaging device of the endoscope. The at least one characteristic may be one or more of color, contrast and brightness. An endoscopic system includes an endoscope including a first imaging device and a second imaging device, and a display device that displays an image from the first imaging device of the endoscope and an image from the second imaging device of the endoscope, wherein the images are sized so that an object, when placed at the same distance from the imaging devices, appears to have about the same size in the images.
Description
- This application claims the benefit of U.S. Provisional Patent Application No. 60/801,748, filed May 19, 2006, the entire disclosure of which is incorporated herein by reference.
- The present invention relates to a system and method for producing and improving images.
- Multiple endoscopic devices with multiple cameras and light sources may be used for medical procedures, inspection of small pipes, or remote monitoring. For example, such an endoscopic device may be a medical endoscope comprising a flexible tube, and a camera and a light source mounted on the distal end of the flexible tube. The endoscope is insertable into an internal body cavity through a body orifice to examine the body cavity and tissues for diagnosis. The tube of the endoscope has one or more longitudinal channels, through which an instrument can reach the body cavity to take samples of suspicious tissues or to perform other surgical procedures such as polypectomy.
- There are many types of endoscopes, and they are named in relation to the organs or areas with which they are used. For example, gastroscopes are used for examination and treatment of the esophagus, stomach and duodenum; colonoscopes for the colon; bronchoscopes for the bronchi; laparoscopes for the peritoneal cavity; sigmoidoscopes for the rectum and the sigmoid colon; arthroscopes for joints; cystoscopes for the urinary bladder; and angioscopes for the examination of blood vessels.
- Each endoscope has a single forward viewing camera mounted at the distal end of the flexible tube to transmit an image to an eyepiece or video camera at the proximal end. The camera is used to assist a medical professional in advancing the endoscope into a body cavity and looking for abnormalities. The camera provides the medical professional with a two-dimensional view from the distal end of the endoscope. To capture an image from a different angle or in a different portion, the endoscope must be repositioned or moved back and forth. Repositioning and movement of the endoscope prolongs the procedure and causes added discomfort, complications, and risks to the patient. Additionally, in an environment similar to the lower gastro-intestinal tract, flexures, tissue folds and unusual geometries of the organ may prevent the endoscope's camera from viewing all areas of the organ. The unseen area may cause a potentially malignant (cancerous) polyp to be missed.
- This problem can be overcome by providing an auxiliary camera and an auxiliary light source. The auxiliary camera and light source can be oriented to face the main camera and light source, thus providing an image of areas not viewable by the endoscope's main camera. This arrangement of cameras and light sources can provide both front and rear views of an area or an abnormality. In the case of polypectomy where a polyp is excised by placing a wire loop around the base of the polyp, the camera arrangement allows better placement of the wire loop to minimize damage to the adjacent healthy tissue.
- The present invention relates to devices and methods for producing and improving video images generated by the imaging devices of endoscopes.
- In accordance with one aspect of the invention, a method for displaying images includes adjusting at least one characteristic of an image from a first imaging device of an endoscope to match at least one corresponding characteristic of an image from a second imaging device of the endoscope. The characteristic may be one or more of color, contrast and brightness.
- In a preferred embodiment, the adjusting step includes creating a histogram for each of RGB colors for the image from the first imaging device and a histogram for each of the RGB colors for the image from the second imaging device; adjusting the gamut of each histogram of the image from the first imaging device to match the gamut of the corresponding histogram of the image from the second imaging device; and using gamma coefficients to adjust a color level of each histogram of the image from the first imaging device to match a color level of the corresponding histogram of the image from the second imaging device.
- In accordance with another aspect of the invention, a method for displaying images includes placing, side by side, an image from a first imaging device of an endoscope and an image from a second imaging device of the endoscope, wherein the imaging devices face each other; and reversing one of the images left for right.
- In accordance with still another aspect of the invention, a method for sizing images includes placing an image from a first imaging device of an endoscope and an image from a second imaging device of the endoscope on a display device; and sizing the images so that an object, when placed at the same distance from the imaging devices, appears to have about the same size in the images.
- In accordance with yet another aspect of the invention, a method for processing images includes placing image data from first and second imaging devices of an endoscope in one computer file for simultaneous display on a display device. Preferably, the image data from the imaging devices are time-correlated.
- In a preferred embodiment, patient information data is also placed in the computer file for simultaneous display with the images on the display device.
- In a further preferred embodiment, a time stamp is placed in the computer file for simultaneous display with the images and patient information data on the display device.
- In accordance with still yet another aspect of the invention, an endoscopic system includes an endoscope that has a first imaging device and a second imaging device, and a controller that adjusts at least one characteristic of an image from the first imaging device of the endoscope to match at least one corresponding characteristic of an image from the second imaging device of the endoscope. The at least one characteristic may be one or more of color, contrast and brightness.
- In a preferred embodiment, the controller creates a histogram for each of RGB colors for the image from the first imaging device and a histogram for each of the RGB colors for the image from the second imaging device; adjusts the gamut of each histogram of the image from the first imaging device to match the gamut of the corresponding histogram of the image from the second imaging device; and uses gamma coefficients to adjust a color level of each histogram of the image from the first imaging device to match a color level of the corresponding histogram of the image from the second imaging device.
- In accordance with a further aspect of the invention, an endoscopic system includes an endoscope including a first imaging device and a second imaging device, and a display device that displays, side by side, an image from the first imaging device of the endoscope and an image from the second imaging device of the endoscope, wherein the imaging devices face each other, and wherein one of the images is reversed left for right.
- In accordance with a still further aspect of the invention, an endoscopic system includes an endoscope including a first imaging device and a second imaging device, and a display device that displays an image from the first imaging device of the endoscope and an image from the second imaging device of the endoscope, wherein the images are sized so that an object, when placed at the same distance from the imaging devices, appears to have about the same size in the images.
- In accordance with a yet further aspect of the invention, an endoscopic system includes an endoscope including a first imaging device and a second imaging device, and a controller that places image data from the first and second imaging devices of the endoscope in one computer file for simultaneous display on a display device. Preferably, the image data from the imaging devices are time-correlated.
- In a preferred embodiment, patient information data is also placed in the computer file for simultaneous display with the images on the display device.
- In a further preferred embodiment, a time stamp is placed in the computer file for simultaneous display with the images and patient information data on the display device.
-
FIG. 1 shows a perspective view of an endoscope with an imaging assembly according to one embodiment of the present invention. -
FIG. 2 shows a perspective view of the distal end of an insertion tube of the endoscope ofFIG. 1 . -
FIG. 3 shows a perspective view of the imaging assembly shown inFIG. 1 . -
FIG. 4 shows a perspective view of the distal ends of the endoscope and imaging assembly ofFIG. 1 . -
FIG. 5 shows a schematic representation of a display device used with the endoscope ofFIG. 1 . -
FIG. 6 shows a schematic representation of a screen showing two images and patient information. -
FIG. 1 illustrates anexemplary endoscope 10 of the present invention. Thisendoscope 10 can be used in a variety of medical procedures in which imaging of a body tissue, organ, cavity or lumen is required. The types of procedures include, for example, anoscopy, arthroscopy, bronchoscopy, colonoscopy, cystoscopy, EGD, laparoscopy, and sigmoidoscopy. - The
endoscope 10 ofFIG. 1 includes aninsertion tube 12 and animaging assembly 14, a section of which is housed inside theinsertion tube 12. As shown inFIG. 2 , theinsertion tube 12 has twolongitudinal channels 16. In general, however, theinsertion tube 12 may have any number of longitudinal channels. An instrument can reach the body cavity through one of thechannels 16 to perform any desired procedures, such as to take samples of suspicious tissues or to perform other surgical procedures such as polypectomy. The instruments may be, for example, a retractable needle for drug injection, hydraulically actuated scissors, clamps, grasping tools, electrocoagulation systems, ultrasound transducers, electrical sensors, heating elements, laser mechanisms and other ablation means. In some embodiments, one of the channels can be used to supply a washing liquid such as water for washing. Another or the same channel may be used to supply a gas, such as CO2 or air into the organ. Thechannels 16 may also be used to extract fluids or inject fluids, such as a drug in a liquid carrier, into the body. Various biopsy, drug delivery, and other diagnostic and therapeutic devices may also be inserted via thechannels 16 to perform specific functions. - The
insertion tube 12 preferably is steerable or has a steerabledistal end region 18 as shown inFIG. 1 . The length of thedistal end region 18 may be any suitable fraction of the length of theinsertion tube 12, such as one half, one third, one fourth, one sixth, one tenth, or one twentieth. Theinsertion tube 12 may have control cables (not shown) for the manipulation of theinsertion tube 12. Preferably, the control cables are symmetrically positioned within theinsertion tube 12 and extend along the length of theinsertion tube 12. The control cables may be anchored at or near thedistal end 36 of theinsertion tube 12. Each of the control cables may be a Bowden cable, which includes a wire contained in a flexible overlying hollow tube. The wires of the Bowden cables are attached tocontrols 20 in thehandle 22. Using thecontrols 20, the wires can be pulled to bend thedistal end region 18 of theinsertion tube 12 in a given direction. The Bowden cables can be used to articulate thedistal end region 18 of theinsertion tube 12 in different directions. - As shown in
FIG. 1 , theendoscope 10 may also include acontrol handle 22 connected to theproximal end 24 of theinsertion tube 12. Preferably, the control handle 22 has one or more ports and/or valves (not shown) for controlling access to thechannels 16 of theinsertion tube 12. The ports and/or valves can be air or water valves, suction valves, instrumentation ports, and suction/instrumentation ports. As shown inFIG. 1 , the control handle 22 may additionally includebuttons 26 for taking pictures with an imaging device on theinsertion tube 12, theimaging assembly 14, or both. Theproximal end 28 of the control handle 22 may include an accessory outlet 30 (FIG. 1 ) that provides fluid communication between the air, water and suction channels and the pumps and related accessories. Thesame outlet 30 or a different outlet can be used for electrical lines to light and imaging components at the distal end of theendoscope 10. - As shown in
FIG. 2 , theendoscope 10 may further include animaging device 32 andlight sources 34, both of which are disposed at thedistal end 36 of theinsertion tube 12. Theimaging device 32 may include, for example, a lens, single chip sensor, multiple chip sensor or fiber optic implemented devices. Theimaging device 32, in electrical communication with a processor and/or monitor, may provide still images or recorded or live video images. Thelight sources 34 preferably are equidistant from theimaging device 32 to provide even illumination. The intensity of eachlight source 34 can be adjusted to achieve optimum imaging. The circuits for theimaging device 32 andlight sources 34 may be incorporated into a printed circuit board (PCB). - As shown in
FIGS. 3 and 4 , theimaging assembly 14 may include atubular body 38, ahandle 42 connected to theproximal end 40 of thetubular body 38, anauxiliary imaging device 44, alink 46 that provides physical and/or electrical connection between theauxiliary imaging device 44 to thedistal end 48 of thetubular body 38, and an auxiliary light source 50 (FIG. 4 ). The auxiliarylight source 50 may be an LED device. - As shown in
FIG. 4 , theimaging assembly 14 of theendoscope 10 is used to provide an auxiliary imaging device at the distal end of theinsertion tube 12. To this end, theimaging assembly 14 is placed inside one of thechannels 16 of the endoscope'sinsertion tube 12 with itsauxiliary imaging device 44 disposed beyond thedistal end 36 of theinsertion tube 12. This can be accomplished by first inserting the distal end of theimaging assembly 14 into the insertion tube'schannel 16 from the endoscope'shandle 18 and then pushing theimaging assembly 14 further into theassembly 14 until theauxiliary imaging device 44 and link 46 of theimaging assembly 14 are positioned outside thedistal end 36 of theinsertion tube 12 as shown inFIG. 4 . - Each of the main and
auxiliary imaging devices main imaging device 32 is a CCD imaging device, and theauxiliary imaging device 44 is a CMOS imaging device. - When the
imaging assembly 14 is properly installed in theinsertion tube 12, theauxiliary imaging device 44 of theimaging assembly 14 preferably faces backwards towards themain imaging device 32 as illustrated inFIG. 4 . Theauxiliary imaging device 44 may be oriented so that theauxiliary imaging device 44 and themain imaging device 32 have adjacent or overlapping viewing areas. Alternatively, theauxiliary imaging device 44 may be oriented so that theauxiliary imaging device 44 and themain imaging device 32 simultaneously provide different views of the same area. Preferably, theauxiliary imaging device 44 provides a retrograde view of the area, while themain imaging device 32 provides a front view of the area. However, theauxiliary imaging device 44 could be oriented in other directions to provide other views, including views that are substantially parallel to the axis of themain imaging device 32. - As shown in
FIG. 4 , thelink 46 connects theauxiliary imaging device 44 to thedistal end 48 of thetubular body 38. Preferably, thelink 46 is a flexible link that is at least partially made from a flexible shape memory material that substantially tends to return to its original shape after deformation. Shape memory materials are well known and include shape memory alloys and shape memory polymers. A suitable flexible shape memory material is a shape memory alloy such as nitinol. Theflexible link 46 is straightened to allow the distal end of theimaging assembly 14 to be inserted into the proximal end ofassembly 14 of theinsertion tube 12 and then pushed towards thedistal end 36 of theinsertion tube 12. When theauxiliary imaging device 44 andflexible link 46 are pushed sufficiently out of thedistal end 36 of theinsertion tube 12, theflexible link 46 resumes its natural bent configuration as shown inFIG. 3 . The natural configuration of theflexible link 46 is the configuration of theflexible link 46 when theflexible link 46 is not subject to any force or stress. When theflexible link 46 resumes its natural bent configuration, theauxiliary imaging device 44 faces substantially back towards thedistal end 36 of theinsertion tube 12 as shown inFIG. 5 . - In the illustrated embodiment, the auxiliary
light source 50 of theimaging assembly 14 is placed on theflexible link 46, in particular on the curved concave portion of theflexible link 46. The auxiliarylight source 50 provides illumination for theauxiliary imaging device 44 and may face substantially the same direction as theauxiliary imaging device 44 as shown inFIG. 4 . - The endoscope of the present invention, such as the
endoscope 10 shown inFIG. 1 , may be part of an endoscope system that may also include acontroller 52 and adisplay device 54, as shown inFIG. 5 . In the preferred embodiment shown inFIG. 5 , thecontroller 52 is connected to the main andauxiliary imaging devices controller 52 may be used to process the image data and transmit the processed image data to thedisplay device 54. The term “controller” as used in this specification is broadly defined. In some embodiments, for example, the controller may simply be a signal processing unit. - In the embodiment shown in
FIG. 5 , thedisplay device 54 displays, side by side, theimage 56 from themain imaging device 32 and theimage 58 from theauxiliary imaging device 44. In the present invention, the images may also be displayed on different display devices, and the term “side by side” may simply mean that the two images are positioned so that they can be viewed by the same operator during a medical procedure. Thecontroller 52 preferably incorporates the image data from the main andauxiliary imaging devices display device 54. In some embodiments, thedisplay device 54 includes a wide screen display with a 16:9 aspect ratio. Preferably, the twoimages image 56 from themain imaging device 32 may be displayed about 1.5 times larger than theimage 58 from theauxiliary imaging device 44. This sizing ratio may also be used to balance the resolution of the two images, as well as to take into account the different aspect ratios of the twoimages image 56 from themain imaging device 32 may be displayed with a 1:1 aspect ratio, while theimage 58 from theauxiliary imaging device 44 may have a 4:3 aspect ration. Theimages imaging devices images images FIG. 5 are not drawn to scale. - As shown in
FIG. 5 , one of theimages display device 54 may be reversed from left for right. With this arrangement, anobject 60 that appears on the left side of oneimage 56 also appears on the left side of theother image 58. Similarly, anobject 62 that appears on the right side of oneimage 56 also appears on the right side of theother image images other image imaging devices images - Preferably, the data for the two
images other data 64, such as patient information data or a time stamp, are stored in one computer file. In some cases, the patent information may be associated with one of the twoimages images other data 64 are time-correlated (i.e., they are captured at the same time). For example, as shown inFIG. 6 , the twoimages other data 64 may be incorporated into onescreen 66 in an image file. In some embodiments, the twoimages other data 64 may be captured in one jpeg file. - In some preferred embodiments, one or more characteristics of one
image other image images images image 58 are adjusted to match those of the main imaging device'simage 56. Matched images make it easier for an operator to observe, identify and correlate the objects in the images. - In one preferred embodiment, the following technique is used to adjust the characteristics of the auxiliary imaging device's
image 58 to match those of the main imaging device'simage 56. First, a histogram for each of the RGB colors is created for the auxiliary imaging device's image 58 (called “current file”). The image used to create the histograms may be an average of the past images, such as the past two to ten images, preferably the past four images. And a histogram for each of the RGB colors is created also for the main imaging device's image 56 (called “master file”). This histogram may be the average of the histograms of the past images, such as the histograms of the past two to ten images, preferably the histograms of the past four images. - Second, a minimum and maximum is determined for each histogram by means of thresholding. Then a clip and gain is set for each histogram of the auxiliary imaging device's image to equalize its color gamut to that of the corresponding histogram of the main imaging device's image. In particular, the minimum and maximum for each histogram of the auxiliary imaging device's image are adjusted to match those for the corresponding histogram of the main imaging device's image.
- Finally, gamma coefficients are used to adjust the color levels of the histograms of the auxiliary imaging device's image to match those of the histograms of the main imaging device's image. The equations for the gamma coefficients are:
-
- red_gamma_color_balance=(current_profile.m_AverageRed*master average)/(master_profile.m_AverageRed * current_average);
- green_gamma_color_balance=(current_profile.m_AverageGreen*master_average)/(master_profile.m_AverageGreen * current_average); and
- blue_gamma_color_balance =(current_profile.m_AverageBlue*master_average)/(master_profile.m_AverageBlue * current_average)
Gamma coefficients are used because they are simple and convenient and preserve black and white points and because the code can be re-used for conventional gamma correction.
- Additional processing of the images, such as sharpening, frame averaging, and noise reduction, may be performed.
- The images described above may be still pictures or continuous video images (such as television images). When the images are video images, in the embodiment of the invention in which one or more characteristics of one image are adjusted to match those of another image, the characteristics are adjusted continuously in real time (i.e., dynamically). For example, the characteristics of the video image may be adjusted for every frame of the image. The reason for real time adjustment is that the video images are changing constantly as the lighting, object distance or tissue color varies.
- The implementation of the above-described features may be performed digitally by software or firmware in the controller. Alternately, the image manipulation can be performed by hardware image chipsets, FPGAs or other electrical circuitry. These image manipulation techniques are well known in the field of graphic and video processing and will not be described in detail.
- Although in the preferred embodiments described above, the images are from the main and auxiliary imaging devices of the same endoscope, the images may also come from imaging devices of different endoscopes such as laparoscopes. For example, when two laparoscopes are used during a procedure, the images from the laparoscopes may have different characteristics due to, for example, different imaging device types, different manufacturing techniques, or differences in lighting sensitivities. The controller that receives images from the laparoscopes may designate any one of the images as a master and then match the second image to the master image. In this way the operator is able to conduct a procedure with consistent visualization across the laparoscopes. Additionally, the present invention may be used with three or more images from two or more endoscopes. For example, two images may be adjusted to match a third image.
- While particular embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications can be made without departing from this invention in its broader aspects. Therefore, the appended claims are to encompass within their scope all such changes and modifications as fall within the true spirit and scope of this invention.
Claims (16)
1-36. (canceled)
37. An endoscopic system comprising:
a first imaging sensor of an endoscope;
a second imaging sensor, wherein the second imaging sensor faces the first imaging sensor;
a controller programmed with an algorithm to reverse left for right, an image from either the first imaging sensor or an image from the second imaging sensor; and
a display device that displays, side by side, the images from the first imaging sensor and the second imaging sensor, wherein one of the images is reversed left for right.
38. The endoscopic system of claim 37 , wherein the controller reverses the image from either the first imaging sensor or the second imaging sensor such the location of an object being simultaneously viewed by the first and second imaging sensors is correlated in both images.
39. The endoscopic system of claim 38 , wherein the object is in the same general location in both images.
40. The endoscopic system of claim 38 , wherein the movement of the object is correlated in both images.
41. The endoscopic system of claim 37 , wherein the controller is programmed to reverse the image from the first imaging sensor.
42. The endoscopic system of claim 37 , wherein the controller is programmed to reverse the image from the second imaging sensor.
43. A method for displaying images, comprising:
acquiring a first image from a first imaging sensor of an endoscope;
acquiring a second image from a second imaging sensor, wherein the second imaging sensor faces the first imaging sensor;
placing, side by side, the first image and the second image on a display device; and
using a controller that has been pre-programmed with an algorithm to reverse one of the images left for right.
44. An endoscopic system comprising:
a first imaging sensor;
a second imaging sensor, wherein the second imaging sensor faces that first imaging sensor;
a controller programmed with an algorithm to size an image from the first imaging sensor and an image from the second imaging sensor so that an object located at the same distance from both the imaging sensors appears to have about the same size in both the images; and
a display device that displays the images from the first imaging sensor and the second imaging sensor, wherein the images are sized by the controller.
45. A method for sizing images, comprising:
acquiring a first image from a first imaging sensor of an endoscope;
acquiring a second image from a second imaging sensor, wherein the second imaging sensor faces the first imaging sensor;
placing the first image and the second image on a display device; and
using a controller that has been pre-programmed with an algorithm to size the images so that an object located at the same distance from both the imaging sensors appears to have the same size in both images.
46. An endoscopic system comprising:
a first imaging sensor of an endoscope;
a second imaging sensor, wherein the second imaging sensor faces the first imaging sensor; and
a controller that stores image data from the first and second imaging sensors in one computer file for simultaneous display on a display device.
47. The system of claim 46 , wherein the image data from the imaging sensors are time-correlated.
48. The system of claim 46 , wherein the controller places patient information data from only one image in the computer file for simultaneous display with the images on a display device.
49. A method for processing images, comprising:
acquiring a first image from a first imaging sensor of an endoscope;
acquiring a second image from a second imaging sensor, wherein the second imaging sensor faces the first imaging sensor; and
using a controller to place the first and second images in one computer file for simultaneous display on a display device.
50. The method of claim 49 , wherein the first and second images are time-correlated.
51. The method of claim 49 , further comprising:
placing patient information data from only one of the images in the computer file for simultaneous display with the images on the display device.
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EP2023794A2 (en) | 2009-02-18 |
US8197399B2 (en) | 2012-06-12 |
JP2009537283A (en) | 2009-10-29 |
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US20070270642A1 (en) | 2007-11-22 |
US8310530B2 (en) | 2012-11-13 |
WO2007136879B1 (en) | 2008-05-22 |
WO2007136879A3 (en) | 2008-01-31 |
US20130197304A1 (en) | 2013-08-01 |
US20070279486A1 (en) | 2007-12-06 |
US20140046136A1 (en) | 2014-02-13 |
EP2023795A2 (en) | 2009-02-18 |
WO2007136859A2 (en) | 2007-11-29 |
WO2007136879A2 (en) | 2007-11-29 |
WO2007136859A3 (en) | 2008-03-13 |
JP2009537284A (en) | 2009-10-29 |
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