WO2007046188A1 - 生体撮像装置及び生体観測システム - Google Patents
生体撮像装置及び生体観測システム Download PDFInfo
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- WO2007046188A1 WO2007046188A1 PCT/JP2006/316578 JP2006316578W WO2007046188A1 WO 2007046188 A1 WO2007046188 A1 WO 2007046188A1 JP 2006316578 W JP2006316578 W JP 2006316578W WO 2007046188 A1 WO2007046188 A1 WO 2007046188A1
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- Prior art keywords
- image
- light
- imaging
- living body
- band
- Prior art date
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- 238000003384 imaging method Methods 0.000 title claims abstract description 228
- 230000003595 spectral effect Effects 0.000 claims description 27
- 238000005286 illumination Methods 0.000 claims description 20
- 238000012984 biological imaging Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 210000004204 blood vessel Anatomy 0.000 claims description 11
- 238000004611 spectroscopical analysis Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 25
- 210000001519 tissue Anatomy 0.000 description 14
- 238000002834 transmittance Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 210000004400 mucous membrane Anatomy 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- A61B1/04—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
-
- 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
- A61B1/00002—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
-
- 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
- A61B1/00163—Optical arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0232—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using shutters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2823—Imaging spectrometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/30—Measuring the intensity of spectral lines directly on the spectrum itself
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
-
- G—PHYSICS
- 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
-
- G—PHYSICS
- 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
- G02B23/26—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes using light guides
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/555—Constructional details for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/10—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming different wavelengths into image signals
- H04N25/11—Arrangement of colour filter arrays [CFA]; Filter mosaics
- H04N25/13—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements
- H04N25/134—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on three different wavelength filter elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Definitions
- the present invention relates to a living body imaging apparatus and a living body observation system, and more particularly to a living body imaging device and a living body observation system capable of capturing an image in which a predetermined region of a living tissue is emphasized.
- An endoscope apparatus having an endoscope, a light source device and the like has conventionally been widely used in the medical field and the like.
- an endoscope apparatus in the medical field is mainly used for medical applications when an operator etc. observes the inside of a living body as a subject.
- Narrow band imaging is an imaging method in which an image in which surface blood vessels and the like are enhanced is imaged.
- An endoscope system proposed in Japanese Patent Application Laid-Open No. 2002-095635 comprises a light source device provided with a filter having discrete spectral characteristics for outputting narrow-band illumination light; And an endoscope for capturing an image of a subject illuminated by light. Then, the endoscope system proposed in Japanese Patent Application Laid-Open No. 2002-095635 can perform narrow band light observation on the subject by having the above-described configuration.
- the present invention has been made in view of the foregoing points, and it is an object of the present invention to provide a living body imaging apparatus and a living body observation system capable of suppressing the cost when performing narrow band light observation compared to the prior art. There is.
- the first living body imaging apparatus images a living tissue illuminated by white light and outputs a plurality of imaging means for outputting an image of the living tissue as an imaging signal, and light of a first wavelength band.
- the image of the biological tissue is displayed as a first image by dispersing the image of the biological tissue imaged by the first imaging device among the plurality of imaging devices.
- the image of the living tissue is enhanced in comparison with a predetermined region in the living tissue with the first image. It is possible to display an image on the display means as a second image And having a second spectroscopic means.
- a second living body imaging apparatus is the first living body imaging apparatus, further comprising light of a third wavelength band different from the first wavelength band and the second wavelength band.
- the image of the living tissue is divided into predetermined images of the living tissue by dispersing the image of the living tissue imaged by the third imaging means among the plurality of imaging means, which has transmission characteristics to be transmitted. It is characterized in that it has a third spectroscopic means that enables the image to be displayed on the display means as a third image in which the part is emphasized as compared to the second image.
- a third living body imaging apparatus is characterized in that, in the first or second living body imaging apparatus, the predetermined part is a blood vessel.
- a fourth living body imaging apparatus is the living body imaging apparatus according to any one of the first to third living body imaging apparatuses, wherein the light of the first wavelength band has a red band, a first green band, and a first light band. It is a light having a blue band of
- a fifth biological imaging apparatus is the fourth biological imaging apparatus, wherein the light of the second wavelength band has a second green band narrower than the first green band, and , The light may be a light having a second blue band narrower than the first blue band.
- a sixth living body imaging apparatus is characterized in that, in the fourth or fifth living body imaging apparatus, the light of the third wavelength band has a plurality of peak wavelengths in the first blue band. It is characterized by having light.
- the first living body observation system in the present invention captures a light source device that emits white light as illumination light for illuminating a subject in a living body, and captures an image of the subject, and outputs the image of the subject as an imaging signal.
- Second light separating means capable of displaying an image on the display means as a second image emphasized as compared to the image, wherein the control device is configured to observe the first image.
- Operation instruction means for outputting an observation mode switching signal for switching between the observation mode and the second observation mode for observing the second image, and one of the operation instruction means based on the observation mode switching signal.
- the white light emitted in the light source means light's Control of the amount, and characterized in that it and a control means for outputting a control signal for switching the display state of the first image and the second image in the display unit.
- a second living body observation system in the present invention is the first living body observation system!
- the predetermined living tissue is a blood vessel.
- a third living body observation system includes the first or second living body observation system.
- the light in the first wavelength band is light having a red band, a first green band, and a first blue band.
- a fourth biological observation system is the third biological observation system, wherein the light of the second wavelength band has a second green color narrower than the first green band. It is characterized in that the light is a light having a band and a second blue band narrower than the first blue band.
- FIG. 1 is a view showing an example of the configuration of a main part of a living body observation system in which a living body imaging apparatus according to the present embodiment is used.
- FIG. 2 A diagram showing the relationship between the wavelength and the transmittance in one spectral filter of the biological imaging device shown in FIG.
- FIG. 3 is a view showing the relationship between the wavelength and the transmittance of one spectral filter which transmits light of a wavelength band different from that of FIG. 2 which the biological imaging device shown in FIG. 1 has.
- FIG. 4 is a view showing an example of an image displayed on a monitor in a normal observation mode and a narrow band light observation mode in the biological observation system shown in FIG.
- FIG. 5 is a diagram showing an example different from FIG. 1 of the configuration of the main part of the living body observation system in which the living body imaging device according to the present embodiment is used.
- FIG. 6 is a diagram showing the relationship between the wavelength and the transmittance in one spectral filter different from those in FIGS. 2 and 3 which the biological imaging device shown in FIG. 5 has.
- FIG. 7 is a view showing an example of an image displayed on the monitor in the normal observation mode, the first narrowband light observation mode, and the second narrowband light observation mode in the living body observation system shown in FIG. 5;
- FIG. 1 is a view showing an example of the configuration of the main part of a living body observation system in which the living body imaging apparatus according to the present embodiment is used.
- FIG. 2 is a view showing the relationship between the wavelength and the transmittance in one spectral filter included in the biological imaging device shown in FIG.
- FIG. 3 shows the relationship between the wavelength and the transmittance in one spectral filter that transmits light in a wavelength band different from that in FIG. 2 which the biological imaging device shown in FIG. 1 has. It is a figure.
- FIG. 4 is a view showing an example of an image displayed on the monitor in the normal observation mode and the narrow band light observation mode in the living body observation system shown in FIG.
- FIG. 5 is a diagram showing an example different from FIG.
- FIG. 6 is a view showing the relationship between the wavelength and the transmittance in one spectral filter different from those in FIGS. 2 and 3 which the biological imaging device shown in FIG. 5 has.
- FIG. 7 is a view showing an example of an image displayed on the monitor in the normal observation mode, the first narrowband light observation mode, and the second narrowband light observation mode in the living body observation system shown in FIG. .
- the living body observation system 1 captures an image of a subject 501 such as a living tissue in a living body as a subject and outputs it as an imaging signal, and a living body imaging A video signal is generated and output based on a light source device 3 that supplies illumination light to a subject 501 to be imaged by the device 2 and an imaging signal output from the living body imaging device 2.
- the control unit 4 and the motor 5 as display means for displaying an image of the subject 501 captured by the living body imaging device 2 based on the video signal output from the control unit 4 as a main part, Ru.
- the living body imaging apparatus 2 configured as an endoscope or the like includes an objective optical system 21A that forms an image of an object 501, and an object optical system 21A for separating an image of the object 501 formed by the objective optical system 21A.
- a spectral filter 22A for transmitting light having a first wavelength band, and an image of an object 501 dispersed by the spectral filter 22A, and outputting the imaged image of the object 501 as an imaging signal
- an image pickup device 23A as an image pickup means, which is constituted by a (charge coupled device) or the like.
- the objective optical system 21A, the spectral filter 22A, and the imaging device 23A described above constitute an imaging means for normal observation.
- the living body imaging apparatus 2 includes an objective optical system 21 B that forms an image of the object 501, and a second wavelength band for dispersing the image of the object 501 formed by the objective optical system 21 B.
- an imaging device 23B as an imaging means is performed. The image pickup means are configured!
- the living body imaging device 2 includes an illumination objective system 21C for emitting illumination light, and a light guide 24 for guiding the illumination light supplied from the light source device 3 to the illumination objective system 21C.
- a light separating filter 22A as a spectral separation means configured of a mosaic filter or a band limiting filter is a light having a wavelength band of R, G and B shown in FIG. 2 as a first wavelength band, for example.
- R a wavelength band of R
- G and B shown in FIG. 2 as a first wavelength band
- the first wavelength band may be set as the above-mentioned wavelength band substantially corresponding to the original color filter, or may be set as the wavelength band corresponding to the complementary color filter. It may be
- the optical filter 22B as a spectroscopic means which is configured of a mosaic filter or a band limiting filter, has a narrower second wavelength band than, for example, the above-mentioned wavelength band of G shown in FIG. It is configured to have a transmission characteristic that transmits light having a wavelength band of G1 which is a wavelength band and a wavelength band of B1 which is a narrow wavelength band compared to the wavelength band of B described above.
- the wavelength band of G1 is 530 nm to 560 nm
- the wavelength band of B1 is 400 nm to 430 nm.
- the light source device 3 is composed of a xenon lamp or the like that emits white light as illumination light, and the lamp 31 is a lamp 31 as light source means that can change the amount of emitted light under the control of the control device 4.
- a condensing optical system 32 for supplying illumination light for illuminating the subject 501 to the light guide 24 by emitting white light ⁇ is generated.
- Control device 4 is provided on the exterior surface of control device 4, and various types of control based on the instruction signal output from operation panel 41 that outputs an instruction signal by the operation of the operator etc.
- the light control circuit 44 controls the amount of light emitted from the lamp 31 and the electronic shutter 45 adjusts the exposure time of the imaging elements 23A and 23B.
- Operation panel 41 emphasizes a normal observation mode for observing a desired subject in a living body as an image substantially similar to an image when observed with the naked eye, blood vessels and fine structures of a mucosal surface of the subject in living body, and the like. It comprises an operation instruction means such as an observation mode switching switch which outputs an observation mode switching instruction signal for switching to a narrow band light observation mode for observing the image.
- an operation instruction means such as an observation mode switching switch which outputs an observation mode switching instruction signal for switching to a narrow band light observation mode for observing the image.
- control circuit 42 detects that an instruction to perform normal observation has been made based on an instruction signal output from the operation panel 41, for example, the image processing circuit 43;
- a first control signal having a control content corresponding to the normal observation mode is output to the light adjustment circuit 44 and the electronic shutter 45.
- control circuit 42 detects that an instruction to perform narrow band light observation has been made based on an instruction signal output from the operation panel 41, for example, the image processing circuit 43, and the light control A second control signal having control contents according to the narrowband light observation mode is output to the circuit 44 and the electronic shutter 45.
- the image processing circuit 43 as the image processing means is configured such that the image of the object 501 captured by the imaging device 23A is an image of the imaging device 23B on the monitor 5 based on the first control signal output from the control circuit 42.
- the imaging signals output from the imaging elements 23A and 23B are processed and each imaging signal after the processing is used as a video signal so that the image is displayed larger than the image of the imaged subject 501. Output to monitor 5
- the image processing circuit 43 detects an image of the subject 501 captured by the imaging device 23B on the monitor 5 based on the second control signal output from the control circuit 42 and an object captured by the imaging device 23A. Processing is performed on the imaging signals output from the imaging elements 23A and 23B so that the image is displayed larger than the image of 501, and each imaging signal after the processing is used as a video signal to monitor 5 Output to
- the light adjustment circuit 44 as the light adjustment means based on the first control signal output from the control circuit 42, detects the image of the object 501 captured by the image pickup device 23A as the brightness suitable for normal observation. Control is performed to set the amount of light emitted from the lamp 31 as the first amount of light emitted so that an image is displayed on the display 5.
- the dimmer circuit 44 performs imaging based on the second control signal output from the control circuit 42.
- a second amount of light emitted from the lamp 31 is higher than the first amount of light emission so that the image of the object 501 captured by the element 23B is displayed on the monitor 5 as the brightness suitable for narrow band light observation.
- Control is performed to set the emitted light amount of
- the electronic shutter 45 as the exposure adjustment means adjusts the exposure time of the imaging device 23A to the first exposure time suitable for normal observation based on the first control signal output from the control circuit 42.
- the exposure time of the imaging device 23B is adjusted to a second exposure time which is longer than the first exposure time.
- the electronic shutter 45 adjusts the exposure time of the imaging device 23B to a third exposure time suitable for narrow band light observation based on the second control signal output from the control circuit 42.
- the exposure time of the imaging device 23A is adjusted to a fourth exposure time shorter than the third exposure time.
- the operator or the like turns on the respective units of the living body observation system 1, that is, the living body imaging device 2, the light source device 3, the control device 4 and the monitor 5, and brings the respective units into the activated state.
- the living body imaging device 2, the light source device 3 and the control device 4 are set as the normal observation mode.
- control circuit 42 When control device 4 is set as the normal observation mode, control circuit 42 indicates that the instruction to perform the normal observation is given based on the observation mode switching instruction signal output from operation panel 41. A first control signal is output to the image processing circuit 43, the light control circuit 44, and the electronic shutter 45.
- the light adjustment circuit 44 causes the image of the object 501 captured by the imaging device 23A to be normally observed based on the first control signal output from the control circuit 42. Control is performed to set the amount of light emitted from the lamp 31 as the first amount of light emitted so that the image is displayed on the monitor 5 as the optimum brightness.
- the electronic shutter 45 when the control device 4 is set as the normal observation mode, the electronic shutter 45 generates an exposure time for the imaging device 23A based on the first control signal output from the control circuit 42.
- the exposure time of the image pickup device 23B is adjusted to the second exposure time which is longer than the first exposure time as well as the exposure time of 1.
- the living body imaging device 2 is operated and moved so as to be a position that enters the field of view and is illuminated by the illumination light emitted from the illumination optical system 21C.
- the image of the object 501 illuminated by the wide band light from which the illumination optical system 21C is also emitted is imaged by the objective optical systems 21A and 21B, respectively, and the spectral filters 22A and 22B are obtained.
- the light is separated by each of the imaging elements 23A and 23B, and after being imaged, each is output to the image processing circuit 43 of the control device 4 as an imaging signal.
- the image processing circuit 43 is based on the first control signal output from the control circuit 42 and the imaging signals output from the imaging elements 23 A and 23 B, respectively, of the object 501 imaged by the imaging element 23 A. Image processing is performed on the imaging signals output from the imaging elements 23A and 23B so that the image is displayed larger than the image of the subject 501 captured by the imaging element 23B, and after the processing is performed. Each imaging signal of is output to the monitor 5 as a video signal.
- the monitor 5 uses the image of the subject 501 captured by the imaging device 23A as a normal observation image 51A.
- the image of the subject 501 captured by the imaging device 23B is displayed as a narrow band light observation image 51B.
- the control, processing, etc. described above are performed in the living body image pickup device 2, the light source device 3 and the control device 4 so that the monitor 5 displays the normal observation image 51A enlarged according to the normal observation mode.
- a narrow band light observation image 51B which is displayed as the optimum brightness and reduced in accordance with the normal observation mode is displayed.
- the control and processing as described above are performed in the living body imaging device 2, the light source device 3 and the control device 4 so that the monitor 5 displays an image of a desired subject in the living body as observed with the naked eye.
- a similar image is displayed as a normal observation image 51A.
- the observation mode switching switch provided on the operation panel 41 when the observation mode switching switch provided on the operation panel 41 is operated by the operator or the like, for example, from the normal observation mode to the narrow band light observation mode, the living body imaging device 2, the light source device 3 and When an instruction to switch the observation mode in the control device 4 is issued, the operation panel 41 controls the observation mode switching instruction signal based on the instruction. Output to
- the control circuit 42 detects that an instruction to perform narrow band light observation has been made based on the observation mode switching instruction signal output from the operation panel 41, and controls the image processing circuit 43 and the light control circuit 44. And the electronic shutter 45 and outputs a second control signal.
- the control device 4 when the control device 4 is set as the narrow band light observation mode, the light adjustment circuit 44 receives an image of the subject 501 captured by the imaging device 23A based on the second control signal output from the control circuit 42. Control is performed such that the amount of emitted light of the lamp 31 is set to the second amount of emitted light so that an image is displayed on the monitor 5 as the brightness suitable for narrow band light observation.
- the electronic shutter 45 performs narrow band light observation on the exposure time of the imaging device 23B based on the second control signal output from the control circuit 42.
- the exposure time of the imaging device 23A is adjusted to a fourth exposure time shorter than the third exposure time.
- Illumination optical system The image of the subject 501 illuminated by the narrow band light which is also emitted by the 21C force is imaged by the objective optical systems 21A and 21B, and is dispersed by the spectral filters 22A and 22B, respectively, to obtain an imaging device After being picked up at 23A and 23B, respectively, the picked up signal is outputted to the image processing circuit 43 of the control device 4 as a picked up signal.
- the image processing circuit 43 is based on the second control signal output from the control circuit 42 and the imaging signals output from the imaging elements 23 A and 23 B, respectively, of the subject 501 imaged by the imaging element 23 B. Image processing is performed on the imaging signals output from the imaging devices 23A and 23B so that the image is displayed larger than the image of the subject 501 captured by the imaging device 23A, and after the processing is performed. Each imaging signal of is output to the monitor 5 as a video signal.
- the monitor 5 takes the image of the subject 501 captured by the imaging device 23A as a normal observation image 52A, for example, as shown in FIG.
- the image of the subject 501 captured by the imaging device 23B is displayed as a narrow band light observation image 52B.
- the monitor 5 is reduced according to the narrowband light observation mode.
- the normal observation image 52A is displayed, and the narrowband light observation image 52B expanded according to the narrowband light observation mode is displayed as the optimum brightness.
- the control and processing as described above are performed in the living body imaging device 2, the light source device 3 and the control device 4, so that the monitor 5 can monitor the blood vessels and microstructure of the mucous membrane surface of the subject in the living body.
- An image in which the etc. is emphasized is displayed as a narrow band light observation image 52B.
- the living body observation system 1 includes a living body imaging device 2A, a light source device 3 having substantially the same configuration as that described above, a control device 4A, and a monitor 5 having substantially the same configuration as that described above. It may be configured as a living body observation system 1A as shown in FIG.
- the living body imaging device 2A has an objective optical system 21D for forming an image of an object 501 and an object imaged by the objective optical system 21D.
- a spectral filter 22D for transmitting light having a third wavelength band for spectrally dividing the image of 501, and an image of the object 501 dispersed by the spectral filter 22D, and an image of the object 501 captured.
- It further comprises a second narrow-band light observation imaging means composed of a CCD (charge coupled device) or the like, which is outputted as a signal, and an imaging element 23D as an imaging means.
- CCD charge coupled device
- the spectral filter 22D as the spectroscopic means has, for example, 400 ⁇ ⁇ ! As the third wavelength band. It is comprised with the transmission characteristic which permeate
- Control device 4A is provided on the exterior surface of control device 4A, and various controls based on the instruction signal output from operation panel 41A that outputs an instruction signal by the operation of the operator etc.
- Control circuit 42A an image processing circuit 43A for processing the imaging signals output from the imaging elements 23A, 23B and 23D based on the control of the control circuit 42A, and a light source device based on the control of the control circuit 42A
- a light control circuit 44A for controlling the amount of light emitted from the lamp 31 and an electronic shutter 45A for adjusting the exposure time of the image pickup devices 23A, 23B and 23D!
- Operation panel 41A has a normal observation mode for observing a desired subject in the living body as an image substantially similar to an image when observed with the naked eye, and a mucous membrane surface of the subject in the living body.
- the first narrow band light observation mode for observing an image in which the blood vessels and the fine structure and the like of the layer are emphasized, and the blood vessel and fine structure and the like of the mucous membrane surface of the subject in the living body
- There is an operation instruction means such as an observation mode switching switch that outputs an observation mode switching instruction signal for switching to the second narrowband light observation mode for observing a more emphasized image than the observation mode. It is composed and beats.
- the control circuit 42A as a control means detects, on the basis of an instruction signal output from the operation panel 41A, for example, an instruction to perform normal observation, an image processing circuit 43A, and A first control signal having control contents according to the normal observation mode is output to the light adjustment circuit 44A and the electronic shutter 45A.
- control circuit 42 A detects the image processing circuit.
- a second control signal having control contents according to the first narrowband light observation mode is output to 43A, the dimmer circuit 44A, and the electronic shutter 45A.
- control circuit 42A detects the image processing circuit.
- a third control signal having control contents according to the second narrowband light observation mode is output to 43A, the dimmer circuit 44A, and the electronic shutter 45A.
- the image processing circuit 43A as the image processing means is configured such that the image of the object 501 captured by the imaging device 23A is captured by the imaging device 23B on the monitor 5 based on the first control signal output from the control circuit 42A. Processing is performed on the imaging signals output from the imaging elements 23A and 23B and the imaging element 23D so that the image of the subject 501 and the image of the subject 501 captured by the imaging element 23D are displayed larger At the same time, each imaging signal after the processing is output to the monitor 5 as a video signal.
- the image processing circuit 43A captures the image of the subject 501 captured by the imaging element 23B on the monitor 5 based on the second control signal output from the control circuit 42A.
- the image pickup signals output from the image pickup devices 23A and 23B and the image pickup device 23D are processed so that the image of the object 501 and the image of the object 501 picked up by the image pickup device 23D are displayed larger.
- the image processing circuit 43A captures the image of the subject 501 captured by the imaging device 23D on the monitor 5 based on the third control signal output from the control circuit 42A.
- the image pickup signals output from the image pickup devices 23A and 23B and the image pickup device 23D are processed so that the image of the object 501 and the image of the object 501 picked up by the image pickup device 23B are displayed larger.
- Each imaging signal after processing is output to the monitor 5 as a video signal.
- the light adjustment circuit 44A as the light adjustment means monitors the image of the object 501 captured by the image pickup device 23A at an optimum brightness for normal observation based on the first control signal output from the control circuit 42A. Control to set the amount of light emitted from the lamp 31 as the first amount of light emitted.
- the light adjustment circuit 44A determines that the image of the object 501 captured by the imaging device 23B has the optimum brightness for the first narrow band light observation based on the second control signal output from the control circuit 42A. In order to display an image on the monitor 5, control is performed to set the amount of light emitted from the lamp 31 to be higher than the first amount of light emitted and to be the second amount of light emitted.
- the light adjustment circuit 44A sets the image of the object 501 captured by the imaging device 23D as the optimum brightness for the second narrowband light observation.
- control is performed to set the emitted light amount of the lamp 31 to a third emitted light amount which is higher than the first emitted light amount and lower than the second emitted light amount.
- the electronic shutter 45A as the exposure adjustment means adjusts the exposure time of the imaging device 23A to a first exposure time suitable for normal observation, based on the first control signal output from the control circuit 42A.
- the exposure times of the imaging device 23B and the imaging device 23D are adjusted to a second exposure time longer than the first exposure time.
- the electronic shutter 45A sets the exposure time of the imaging device 23B to the third exposure time suitable for the first narrow-band light observation based on the second control signal output from the control circuit 42A.
- the exposure time of the imaging device 23A is adjusted to the fourth exposure time shorter than the third exposure time, and the exposure time of the imaging device 23D is adjusted to the third exposure time.
- the electronic shutter 45A is based on the third control signal output from the control circuit 42A, and the exposure time of the imaging device 23D is suitable for the second narrow-band light observation.
- the exposure time of the imaging device 23A is adjusted to the fourth exposure time
- the exposure time of the imaging device 23B is adjusted to the fifth exposure time.
- the operator or the like turns on the respective units of the living body observation system 1A, that is, the living body imaging device 2A, the light source device 3, the control device 4A, and the monitor 5 to activate the respective units.
- the living body imaging device 2A, the light source device 3 and the control device 4A are set as the normal observation mode.
- control circuit 42A When the control device 4A is set as the normal observation mode, the control circuit 42A is instructed that the normal observation is instructed based on the observation mode switching instruction signal output from the operation panel 41A. A first control signal is output to the image processing circuit 43A, the light control circuit 44A, and the electronic shutter 45A.
- the control device 4A When the control device 4A is set as the normal observation mode, the light adjustment circuit 44A normally observes the image of the object 501 captured by the imaging device 23A based on the first control signal output from the control circuit 42A.
- the emitted light quantity of the lamp 31 is controlled to be the first emitted light quantity so that the image is displayed on the monitor 5 with the optimum brightness.
- the electronic shutter 45A is suitable for the normal observation of the exposure time of the imaging device 23A based on the first control signal output from the control circuit 42A.
- the exposure time of the imaging element 23B and the imaging element 23D is adjusted to a second exposure time which is longer than the first exposure time, while adjusting to the first exposure time.
- the operator etc. is a position where the desired object force in the living body enters the field of view of the objective optical systems 21A, 21B and 21D, and the position illuminated by the illumination light emitted from the illumination optical system 21C.
- the biological imaging device 2A is operated and moved so that
- the image of the subject 501 illuminated by the wide band light from which the illumination optical system 21 C is also emitted is imaged by the objective optical systems 21 A, 21 B and 21 D, respectively, and the spectral filter 22 A,
- the light is separated by 22B and 22D and imaged by the imaging devices 23A, 23B and 23D, respectively, and the image processing circuit of the control device 4A is used as an imaging signal. Output to A.
- the image processing circuit 43A is a subject 501 imaged by the imaging device 23A based on the first control signal output from the control circuit 42A and the imaging signals respectively output from the imaging devices 23A, 23B and 23D.
- the imaging signals output from the imaging elements 23A, 23B and 23D are processed so that the image is displayed larger than the image of the subject 501 captured by the imaging element 23B and the imaging element 23D.
- Each imaging signal after the processing is output to the monitor 5 as a video signal.
- the monitor 5 takes the image of the subject 501 captured by the imaging device 23A as a normal observation image 51a, as shown in FIG. 7, for example.
- the image of the subject 501 captured by the imaging device 23B is displayed as a first narrowband light observation image 51b, and the image of the subject 501 captured by the imaging device 23D is displayed as a second narrowband light observation image 51d.
- the normal observation image 51a enlarged according to the normal observation mode is displayed on the monitor 5
- the first narrow-band light observation image 51b and the second narrow-band light observation image 51d, which are displayed as the optimal brightness and are reduced according to the normal observation mode, are displayed.
- the monitor 5 displays an image of a desired subject in the living body as observed with the naked eye. A similar image is displayed as a normal observation image 51a.
- the operation panel 41A when the operator or the like operates the observation mode switching switch provided on the operation panel 41A, for example, the biological imaging device 2A from the normal observation mode to the first narrowband light observation mode
- the operation panel 41A When an instruction for switching the observation mode in the light source device 3 and the control device 4A is issued, the operation panel 41A outputs an observation mode switching instruction signal based on the instruction to the control circuit 42A.
- Control circuit 42A detects that an instruction to perform the first narrow band light observation has been made based on the observation mode switching instruction signal output from operation panel 41A, and controls the image processing circuit 43A and the like.
- the second control signal is output to the light adjustment circuit 44A and the electronic shutter 45A.
- the control device 4A is set as the first narrowband light observation mode
- the light adjustment circuit 44A receives the subject 501 captured by the imaging device 23A based on the second control signal which also outputs the control circuit 42A. Control is performed to set the amount of light emitted from the lamp 31 to the second amount of light emitted so that the image of the image is displayed on the monitor 5 as the optimum brightness for the first narrowband light observation.
- the electronic shutter 45A exposes the imaging device 23B and the imaging device 23D based on the second control signal output from the control circuit 42A.
- the time is adjusted to the third exposure time, and the exposure time of the imaging device 23A is adjusted to the fourth exposure time shorter than the third exposure time.
- Illumination optical system The image of the subject 501 illuminated by the narrow band light from which the 21C force is also emitted is imaged by the objective optical systems 21A, 21B and 21D, and is dispersed by the spectral filters 22A, 22B and 22D, respectively.
- the image pickup devices 23A, 23B and 23D are respectively imaged, and then output as image pickup signals to the image processing circuit 43A of the control device 4A.
- the image processing circuit 43A is a subject 501 imaged by the imaging element 23B based on the second control signal output from the control circuit 42A and the imaging signals respectively output from the imaging elements 23A, 23B and 23D.
- the imaging signals output from the imaging devices 23A, 23B, and 23D are processed so that the image of the subject 501 captured by the imaging devices 23A and 23D is displayed larger than the image of the subject 501.
- Each imaging signal after processing is output to the monitor 5 as a video signal.
- the monitor 5 takes the image of the subject 501 captured by the imaging device 23A as a normal observation image 52a,
- the image of the subject 501 captured by the imaging device 23B is displayed as a first narrow-band light observation image 52b, and the image of the subject 501 captured by the imaging device 23D is displayed as a second narrow-band light observation image 52d.
- the monitor 5 is enlarged according to the first narrowband light observation mode.
- the narrowband light observation image 52b is displayed as the optimum brightness, and the normal observation image 52a and the second narrowband light observation image 52d reduced according to the first narrowband light observation mode are displayed.
- the control and processing as mentioned above An image in which the blood vessels and microstructure of the surface layer of the subject in the living body are enhanced is displayed as a narrow band light observation image 52b by being performed in the light source device 3 and the control device 4A. .
- the observation mode switching switch provided on operation panel 41A when operated by the operator or the like, for example, the first narrowband light observation mode to the second narrowband light observation mode can be used as a living body.
- the operation panel 41A When an instruction to switch the observation mode in the imaging device 2A, the light source device 3 and the control device 4A is issued, the operation panel 41A outputs an observation mode switching instruction signal based on the instruction to the control circuit 42A. .
- Control circuit 42A detects that an instruction to perform the second narrowband light observation has been made based on the observation mode switching instruction signal output from operation panel 41A, and the image processing circuit 4 3A And a third control signal to the light control circuit 44A and the electronic shutter 45A.
- the control device 4A is set as the second narrowband light observation mode
- the light adjustment circuit 44A receives the subject 501 captured by the imaging device 23A based on the third control signal which also outputs the control circuit 42A. Control is performed such that the amount of light emitted from the lamp 31 is set to the third amount of light emission so that the image of the image is displayed on the monitor 5 as the optimal brightness for the second narrowband light observation.
- the electronic shutter 45A exposes the imaging device 23B and the imaging device 23D based on the third control signal output from the control circuit 42A.
- the time is adjusted to the fifth exposure time, and the exposure time of the imaging device 23A is adjusted to the fourth exposure time shorter than the third exposure time.
- Illumination optical system The image of the subject 501 illuminated by the narrow band light which is also emitted by the 21C force is imaged by the objective optical systems 21A, 21B and 21D, and dispersed respectively by the spectral filters 22A, 22B and 22D.
- the image pickup devices 23A, 23B and 23D are respectively imaged, and then output as image pickup signals to the image processing circuit 43A of the control device 4A.
- the image processing circuit 43A is a subject 501 imaged by the imaging device 23D based on the third control signal output from the control circuit 42A and the imaging signals respectively output from the imaging devices 23A, 23B and 23D.
- the imaging signals output from the imaging elements 23A, 23B, and 23D are processed and the processing is performed so that the image display of the object 501 is larger than the image of the object 501 captured by the imaging elements 23A and 23B. Image of each imaging signal after Output to monitor 5 as a signal.
- the monitor 5 takes the image of the subject 501 captured by the imaging device 23A as a normal observation image 53a,
- the image of the subject 501 captured by the imaging device 23B is displayed as a first narrow-band light observation image 53b, and the image of the subject 501 captured by the imaging device 23D is displayed as a second narrow-band light observation image 53d.
- the monitor 5 is enlarged according to the second narrowband light observation mode.
- the narrowband light observation image 53d is displayed as the optimal brightness, and the normal observation image 53a and the first narrowband light observation image 53b reduced according to the second narrowband light observation mode are displayed.
- the control and processing as described above are performed by the living body imaging device 2A, the light source device 3 and the control device 4A, so that the monitor 5, the blood vessels and microstructure of the mucosal surface layer of the subject in the living body
- An enhanced image compared to the first narrowband light observation image 52b is displayed as a second narrowband light observation image 53d.
- the living body observation system 1 and the living body observation system 1A of the present embodiment are both configured to include the living body imaging device incorporating the spectral filter. Therefore, the operator or the like can perform narrow band light observation without using a dedicated light source device in observation by the living body observation system 1 having the living body imaging device 2 or the living body observation system 1A having the living body imaging device 2A. As a result, the cost for performing narrow band light observation can be reduced as compared to the conventional case.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020087009274A KR100983407B1 (ko) | 2005-10-21 | 2006-08-24 | 생체 촬상 장치 및 생체 관측 시스템 |
AU2006305419A AU2006305419B2 (en) | 2005-10-21 | 2006-08-24 | Organism imaging device and organism observing system |
EP06782982A EP1938741A4 (en) | 2005-10-21 | 2006-08-24 | ORGANIZATION IMAGING DEVICE AND ORGANIZATION OBSERVATION SYSTEM |
CN2006800393004A CN101291615B (zh) | 2005-10-21 | 2006-08-24 | 生物体摄像装置和生物体观测系统 |
BRPI0617729-8A BRPI0617729A2 (pt) | 2005-10-21 | 2006-08-24 | aparelho para captação de imagem do corpo vivo e sistema de formação de imagem do corpo vivo |
US12/100,094 US20080194972A1 (en) | 2005-10-21 | 2008-04-09 | Living body image pickup apparatus and living body imaging system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005307620A JP2007111357A (ja) | 2005-10-21 | 2005-10-21 | 生体撮像装置及び生体観測システム |
JP2005-307620 | 2005-10-21 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/100,094 Continuation US20080194972A1 (en) | 2005-10-21 | 2008-04-09 | Living body image pickup apparatus and living body imaging system |
Publications (1)
Publication Number | Publication Date |
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WO2007046188A1 true WO2007046188A1 (ja) | 2007-04-26 |
Family
ID=37962287
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PCT/JP2006/316578 WO2007046188A1 (ja) | 2005-10-21 | 2006-08-24 | 生体撮像装置及び生体観測システム |
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US (1) | US20080194972A1 (ja) |
EP (1) | EP1938741A4 (ja) |
JP (1) | JP2007111357A (ja) |
KR (1) | KR100983407B1 (ja) |
CN (1) | CN101291615B (ja) |
AU (1) | AU2006305419B2 (ja) |
BR (1) | BRPI0617729A2 (ja) |
RU (1) | RU2391894C2 (ja) |
WO (1) | WO2007046188A1 (ja) |
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US7542203B2 (en) | 2005-07-15 | 2009-06-02 | Auburn University | Microscope illumination device and adapter |
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JP4717103B2 (ja) * | 2008-07-18 | 2011-07-06 | オリンパス株式会社 | 信号処理システム及び信号処理プログラム |
JP5460507B2 (ja) * | 2009-09-24 | 2014-04-02 | 富士フイルム株式会社 | 内視鏡装置の作動方法及び内視鏡装置 |
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JP5541914B2 (ja) * | 2009-12-28 | 2014-07-09 | オリンパス株式会社 | 画像処理装置、電子機器、プログラム及び内視鏡装置の作動方法 |
JP5467970B2 (ja) * | 2010-08-30 | 2014-04-09 | 富士フイルム株式会社 | 電子内視鏡システム |
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CN102591000A (zh) * | 2011-01-14 | 2012-07-18 | 深圳市金舜康医疗科技有限公司 | 多特征光显微成像方法和装置 |
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KR20120097828A (ko) | 2011-02-25 | 2012-09-05 | 삼성전자주식회사 | 협대역 영상을 제공할 수 있는 내시경 장치 및 상기 내시경 장치의 영상 처리 방법 |
CN102397106B (zh) * | 2011-10-03 | 2013-07-10 | 杨晓峰 | 多光谱分光融合外科手术引导系统 |
JP5677378B2 (ja) * | 2012-07-25 | 2015-02-25 | 富士フイルム株式会社 | 内視鏡システム |
JP2014036759A (ja) * | 2012-08-17 | 2014-02-27 | Hoya Corp | 電子内視鏡システムおよび内視鏡用光源装置 |
TWM448255U (zh) * | 2012-08-23 | 2013-03-11 | Morevalued Technology Co Let | 內視鏡膠囊裝置 |
CN103006326B (zh) * | 2012-12-03 | 2016-03-23 | 中国科学院自动化研究所 | 视野可调双视频融合成像系统 |
CN103393391A (zh) * | 2013-06-20 | 2013-11-20 | 中国科学院苏州生物医学工程技术研究所 | 一种多功能消化道内窥手术医疗器械 |
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Also Published As
Publication number | Publication date |
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BRPI0617729A2 (pt) | 2011-08-02 |
CN101291615B (zh) | 2011-04-20 |
RU2391894C2 (ru) | 2010-06-20 |
AU2006305419B2 (en) | 2009-09-10 |
US20080194972A1 (en) | 2008-08-14 |
RU2008115430A (ru) | 2009-10-27 |
EP1938741A1 (en) | 2008-07-02 |
AU2006305419A1 (en) | 2007-04-26 |
CN101291615A (zh) | 2008-10-22 |
EP1938741A4 (en) | 2009-09-09 |
JP2007111357A (ja) | 2007-05-10 |
KR20080051178A (ko) | 2008-06-10 |
KR100983407B1 (ko) | 2010-09-20 |
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