WO2011048887A1 - 蛍光観察装置 - Google Patents
蛍光観察装置 Download PDFInfo
- Publication number
- WO2011048887A1 WO2011048887A1 PCT/JP2010/065828 JP2010065828W WO2011048887A1 WO 2011048887 A1 WO2011048887 A1 WO 2011048887A1 JP 2010065828 W JP2010065828 W JP 2010065828W WO 2011048887 A1 WO2011048887 A1 WO 2011048887A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brightness
- image
- filter
- light
- unit
- Prior art date
Links
Images
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
- 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
- A61B1/00004—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
-
- 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
- A61B1/00186—Optical arrangements with imaging filters
-
- 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
- A61B1/043—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 for fluorescence imaging
-
- 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
- A61B1/06—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
- A61B1/0638—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 providing two or more wavelengths
-
- 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
- A61B1/06—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
- A61B1/0646—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 with illumination filters
-
- 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
- A61B1/06—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
- A61B1/0655—Control 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
- A61B1/06—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
- A61B1/0669—Endoscope light sources at proximal end of an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0071—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by measuring fluorescence emission
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
- A61B5/0084—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for introduction into the body, e.g. by catheters
-
- 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
- A61B1/06—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
- A61B1/0653—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 with wavelength conversion
Definitions
- the present invention relates to a fluorescence observation apparatus, and more particularly to a fluorescence observation apparatus capable of observing fluorescence emitted from a plurality of phosphors.
- cancer diagnosis technology using molecular target drugs has begun to attract attention. Specifically, for example, after spraying or injecting a fluorescent probe (fluorescent drug) targeting a biological protein specifically expressed in cancer cells to a target site of a living body, cancer is generated based on the fluorescence emitted from the target site.
- a method of discriminating whether or not there is a problem has been studied. Such a technique is useful for early detection of cancer in the gastrointestinal tract field.
- the plurality of types of fluorescent probes are based on a plurality of fluorescence emitted from the target site.
- a method of observing the expression state of a plurality of types of biological proteins corresponding to the above is being proposed. Such a method is considered to be useful in estimation of cancer stage, prediction of cancer invasion risk, prediction of cancer metastasis risk, and the like.
- the brightness between the plurality of fluorescent images acquired according to the plurality of fluorescence emitted from the plurality of fluorescent probes for example, there is a possibility that an observation image in which a fluorescent image that is too bright with respect to the brightness of the reflected light image and a fluorescent image that is too dark with respect to the brightness of the reflected light image are superimposed is output.
- an observation image in which a fluorescent image that is too bright with respect to the brightness of the reflected light image and a fluorescent image that is too dark with respect to the brightness of the reflected light image are superimposed is output.
- neither a portion that is too bright with respect to the brightness of the reflected light image nor a portion that is too dark with respect to the brightness of the reflected light image is suitable for diagnosis. There is a problem that it is displayed as brightness.
- Japanese Patent Application Laid-Open No. 2008-161550 there is no mention of any means for solving the above-mentioned problems. Therefore, in the technique described in Japanese Patent Application Laid-Open No. 2008-161550, an image that causes a decrease in diagnostic ability for an observation target region is displayed in an observation image in which a plurality of fluorescent images and reflected light images are superimposed. The problem that it ends up occurs.
- the present invention has been made in view of the above-described circumstances, and by appropriately adjusting the brightness between a plurality of fluorescent images acquired according to a plurality of fluorescence emitted from a plurality of fluorescent probes, an observation target It aims at providing the fluorescence observation apparatus which can aim at the improvement of the diagnostic ability with respect to a site
- the fluorescence observation apparatus includes a light source unit capable of emitting a plurality of excitation lights for exciting a plurality of fluorescent substances and a reference light, and the plurality of excitation lights for the plurality of fluorescent substances.
- a light source unit capable of emitting a plurality of excitation lights for exciting a plurality of fluorescent substances and a reference light, and the plurality of excitation lights for the plurality of fluorescent substances.
- the imaging part which images a plurality of fluorescence emitted by emitting and the reflected light of the reference light, the plurality of fluorescence imaged by the imaging part, and the reflected light of the reference light
- An image generation unit for generating image signals; and a brightness detection unit for detecting the brightness of the plurality of image signals according to the plurality of fluorescence and the brightness of the image signal according to the reflected light of the reference light, respectively.
- the brightness of the image signal corresponding to the reflected light of the reference light is used as a reference, and at least one of the plurality of image signals corresponding to the plurality of fluorescences Adjust brightness It has a brightness adjustment unit that, the.
- the figure which shows the state at the time of electricity supply of the magnet displacement apparatus at the time of making a filter switching mechanism into the state of FIG. The figure which shows a state when an optical filter is evacuated from the optical path in the filter switching mechanism of an imaging actuator.
- the figure which shows an example of a structure of the switching filter provided in the light source device The figure which shows the characteristic of the normal light filter provided in the switching filter. The figure which shows the characteristic of the 1st excitation light filter provided in the switching filter. The figure which shows the characteristic of the 2nd excitation light filter provided in the switching filter. The figure which shows the characteristic of the 3rd excitation light filter provided in the switching filter.
- the figure which shows the characteristic of the optical filter provided in the rotation filter The figure which shows the characteristic of the optical filter different from FIG. 14 provided in the rotation filter.
- 6 is a timing chart showing an exposure period and a readout period of a CCD provided in the scope.
- 6 is a timing chart showing an interposing operation and a retracting operation in a first observation mode of each optical filter provided in the imaging actuator.
- 10 is a timing chart showing an interposing operation and a retracting operation in a third observation mode of each optical filter provided in the imaging actuator.
- combined the image of FIG. 22 and the image of FIG. The figure which shows an example at the time of displaying the image of FIG. 22 and the image of FIG. 25 side by side on the same screen.
- FIG. 34 is a diagram illustrating an example of an adjustment result between the brightness of the first image signal and the brightness of the second image signal when the brightness detection result of FIG. 33 is obtained.
- the endoscope system 301 can be inserted into a body cavity of a subject, and the scope 2 that images the subject 201 in the body cavity and outputs an imaging signal, and the imaging of the scope 2
- the light source device 1 that supplies illumination light for illuminating the subject 201 that is the object
- the processor 3 that performs various signal processing on the imaging signal from the scope 2
- the output signal from the processor 3
- a monitor 4 for displaying the image
- a digital filing device 5 for storing an image corresponding to the output signal from the processor 3, and a photography device 6 for capturing an image corresponding to the output signal from the processor 3.
- a light guide 13 for transmitting illumination light supplied from the light source device 1 to the distal end portion of the scope 2 is inserted into the scope 2.
- the scope 2 includes an illumination optical system 14a that emits illumination light transmitted by the light guide 13 to the subject 201, an objective optical system 14b that forms an image of return light from the subject 201 illuminated by the illumination light, A monochrome type CCD 14 in which an imaging surface is arranged at an image forming position of the objective optical system 14b and an imaging actuator 39 arranged on an optical path between the objective optical system 14b and the CCD 14 are provided at the distal end portion. .
- the scope 2 includes a mode switch 15 that can perform an operation related to switching of an observation mode of the endoscope system 301, a release switch 16 that can perform an operation related to acquisition of a still image of the subject 201, and types of the scope 2. And a scope discriminating element 17 in which unique discriminating information corresponding to the above is stored.
- the CCD 14 is driven in accordance with the control of the processor 3 and performs photoelectric conversion on the return light from the subject 201 imaged on the imaging surface, thereby generating an imaging signal and outputting it to the processor 3.
- the CCD 14 of this embodiment is provided with an electronic shutter (not shown) that can adjust the exposure time and the readout time in accordance with the control of the processor 3.
- the CCD 14 of this embodiment is provided with a charge amplification device (not shown).
- the filter switching device 39a of the imaging actuator 39 includes a first arrangement state (interpolation state) in which a filter that allows passage of only light in a predetermined wavelength band is inserted on the optical path from the objective optical system 14b to the CCD 14, and
- the second arrangement state (withdrawal state) in which the filter that passes only light in the predetermined wavelength band is retracted from the optical path from the objective optical system 14b to the CCD 14 can be switched according to the control of the processor 3. It has a configuration.
- the filter switching device 39a of the imaging actuator 39 has a configuration similar to the configuration of the light adjusting device described in Japanese Patent Laid-Open No. 2009-8717. That is, the filter switching device 39a includes the filter switching mechanism 101 and the magnet displacement device 102.
- the filter switching mechanism 101 is formed so that the filter moving member 105, the closing stopper 107, and the opening stopper 108 are sandwiched between the lower substrate 103 and the upper substrate 104.
- One end of the shape memory alloy wire 120 is fixed to the magnet 119 of the magnet displacement device 102. Further, a bias spring 121 and an insulating tube 122 are passed through the shape memory alloy wire 120. On the other hand, the other end of the shape memory alloy wire 120 is fixed to a crimping member (not shown). Note that the above-described crimping member (not shown) is also fixed at the end of the tube 122 opposite to the magnet 119.
- the filter moving member 105 is press-fitted with a rotating shaft 109 and a columnar magnet 110.
- the filter moving member 105 is provided with an optical filter unit 118 having an optical filter 117a.
- the lower substrate 103 is formed with an optical opening 111, a rotation shaft insertion hole for inserting the rotation shaft 109, and a notch for guiding the magnet 110.
- the upper substrate 104 has an optical aperture having the same or slightly larger diameter as the optical aperture 111, a rotation shaft insertion hole for inserting the rotation shaft 109, and a guide for the magnet 110. And notches are formed.
- the rotating shaft 109 is inserted into rotating shaft insertion holes provided in the lower substrate 103 and the upper substrate 104, respectively.
- the filter moving member 105 can be rotationally displaced about the rotation shaft 109.
- the rotation movable range of the filter moving member 105 is limited by the closing stopper 107 and the opening stopper 108.
- the movable range of the magnet 110 is limited by guide notches provided on the lower substrate 103 and the upper substrate 104, respectively.
- the filter moving member 105 when the filter moving member 105 is rotationally displaced about the rotation shaft 109, for example, when the optical filter unit 118 contacts the closing stopper 107, the center of the optical filter 117a and the optical aperture 111 are obtained. Matches the center of.
- the shape memory alloy wire 120 contracts with the application of voltage according to the control of the processor 3. Then, when the magnet 119 fixed to one end of the shape memory alloy wire 120 is displaced toward the tube 122 against the repulsive force of the bias spring 121, the N pole of the magnet 110 and the N pole of the magnet 119 face each other. It is arranged at the position to do.
- the filter moving member 105 rotates counterclockwise about the rotation shaft 109, and the optical filter unit 118 is closed. It contacts the hour stopper 107.
- the optical aperture 111 is covered by the optical filter unit 118, so that the filter switching mechanism 101 returns light in a predetermined wavelength band defined by the optical filter 117a. Only is passed through the imaging surface of the CCD 14.
- the shape memory alloy wire 120 expands as the voltage is applied according to the control of the processor 3, and the shape changes.
- the magnet 119 fixed to one end of the memory alloy wire 120 is displaced to the opposite side of the tube 122 according to the repulsive force of the bias spring 121, so that the S pole of the magnet 110 and the N pole of the magnet 119 are opposed to each other.
- the optical aperture 111 is not covered by the optical filter unit 118, so that the filter switching mechanism 101 performs band limitation on the return light that has passed through the objective optical system 14b. Without passing through, the return light passes through the imaging surface of the CCD 14 as it is.
- optical filter 117a of the filter switching device 39a in this embodiment is formed so as to pass only light of 680 to 750 nm as shown in FIG. 6, for example.
- the imaging actuator 39 of the present embodiment is configured to include a filter switching device 39a and a filter switching device 39b having a configuration substantially similar to the filter switching device 39a.
- the filter switching device 39b has an optical filter 117b that allows only return light having a wavelength band different from that of the optical filter 117a to pass therethrough, and the other parts have the same configuration as the filter switching device 39a. Further, the optical filter 117b is formed so as to pass only light of 790 to 850 nm, for example, as shown in FIG.
- the imaging actuator 39 of the present embodiment is not limited to the one configured based on the configuration of the light adjusting device described in JP 2009-8717 A as described above.
- the imaging actuator 39 according to the present embodiment is configured to be able to switch between the first arrangement state (insertion state) and the second arrangement state (retraction state) for each of the optical filters 117a and 117b.
- it may be configured based on another configuration such as a light adjusting device described in Japanese Patent Application Laid-Open No. 2009-8719, for example.
- the light source device 1 is inserted on a lamp 7 that emits light in a wavelength region including a visible region and a near-infrared region, a switching filter 8 provided so as to vertically traverse the optical path of the lamp 7, and the optical path of the lamp 7.
- a diaphragm 12 disposed on the optical path of the lamp 7 extending from the rotary filter 10 to the rotary filter 10, and a condenser lens 12 a that condenses the illumination light that has passed through the rotary filter 10 on the light incident side end face of the light guide 13. Configured.
- the switching filter 8 having a disk shape includes a normal light filter 50 that transmits visible light, and a first excitation light filter 51 that transmits part of the visible light and red light.
- the normal optical filter 50 is formed so as to pass light in the wavelength band of 400 to 650 nm among the light in the wavelength bands emitted from the lamp 7.
- the first excitation light filter 51 is formed so as to pass light in the wavelength bands of 540 to 560 nm and 600 to 650 nm among the light of each wavelength band emitted from the lamp 7. ing.
- the second excitation light filter 55 is formed so as to pass light in the wavelength bands of 540 to 560 nm and 700 to 760 nm among the light of each wavelength band emitted from the lamp 7. ing.
- the third excitation light filter 56 is formed to pass light in the wavelength bands of 540 to 560 nm and 600 to 760 nm among the light in the wavelength bands emitted from the lamp 7. ing.
- the diaphragm 12 has a configuration capable of increasing or decreasing the amount of light that has passed through the switching filter 8 in accordance with the control of the processor 3.
- the rotary filter 10 having a disk shape includes an optical filter 41 that transmits red light, an optical filter 42 that transmits green light, and blue and near-infrared light. And an optical filter 43 that allows the light to pass therethrough is provided along the circumferential direction of the disk. That is, the rotation filter 10 is placed on the optical path of the lamp 7 while the optical filters 41, 42, and 43 are sequentially replaced by the rotation of the motor 11 according to the control of the processor 3 (timing signal of the timing generator 30 described later). It is configured to be inserted or retreated from the optical path of the lamp 7. Note that the rotary filter 10 of this embodiment is formed so as not to allow light to pass through when the optical filter 41, 42 and 43 are inserted on the optical path of the lamp 7 except for the places where the optical filters 41, 42 and 43 are disposed. To do.
- the optical filter 41 is formed so as to pass light in the wavelength band of 600 to 650 nm among the wavelength bands of the light having passed through the switching filter 8 and the diaphragm 12.
- the optical filter 42 is formed so as to pass light in the wavelength band of 500 to 600 nm among the wavelength bands of the light having passed through the switching filter 8 and the diaphragm 12.
- the optical filter 43 is formed so as to pass light in the wavelength bands of 400 to 500 nm and 700 to 760 nm among the wavelength bands of the light that has passed through the switching filter 8 and the diaphragm 12. Has been.
- the imaging signal output from the CCD 14 is input to the processor 3, and then subjected to processing such as CDS (correlated double sampling) in the preprocess circuit 18, and converted into a digital image signal in the A / D conversion circuit 19. And then output to the color balance correction circuit 20.
- CDS correlated double sampling
- the color balance correction circuit 20 Based on the timing signal from the timing generator 30, the color balance correction circuit 20 synchronizes with the optical filter 41, the optical filter 41, 42 and 43 of the rotary filter 10 in synchronization with the timing at which the optical filter 41, 42 and 43 are sequentially inserted on the optical path of the lamp 7.
- the color balance correction coefficient corresponding to each of 42 and 43 is selected, and the selected color balance correction coefficient is read from a memory (not shown).
- the color balance correction circuit 20 multiplies the image signal sequentially output from the A / D conversion circuit 19 by the color balance correction coefficient read from the memory (not shown), and then outputs the multiplied image signal to the multiplexer 21. To do.
- the color balance correction coefficient described above is a correction value calculated by the calculation process of the CPU 33 in a color balance operation such as white balance, and the result of the calculation process is transferred to a memory (not shown) of the color balance correction circuit 20. Stored.
- the color balance operation such as the white balance described above is started at the timing when the CPU 33 detects an operation related to the start of execution of the color balance operation in the color balance setting switch 36 provided in the processor 3.
- the multiplexer 21 is an image signal output from the color balance correction circuit 20 so as to synchronize with the timing at which the optical filters 41, 42 and 43 are sequentially inserted on the optical path of the lamp 7 based on the timing signal from the timing generator 30. Are output to the simultaneous memories 22a, 22b and 22c while being appropriately distributed.
- the simultaneous memories 22a, 22b and 22c have a configuration capable of temporarily storing the image signal output from the multiplexer 21.
- the image processing circuit 23 reads the image signals stored in the synchronization memories 22a, 22b, and 22c at the same time, and then performs predetermined image processing on the three read image signals. Then, the image processing circuit 23 converts the three image signals after the predetermined image processing into a first color channel and a second color component (for example, a first color component (for example, red (R) component)). The second color channel corresponding to the green (G) component) and the third color channel corresponding to the third color component (for example, blue (B) component) are allotted to the color tone adjustment circuit 24. Output.
- a first color component for example, red (R) component
- the second color channel corresponding to the green (G) component) and the third color channel corresponding to the third color component for example, blue (B) component
- the color tone adjustment circuit 24 reads the color tone adjustment coefficient stored in a memory (not shown), and then the image signal of the color tone adjustment coefficient and the first color component (first color channel) output from the image processing circuit 23. Then, matrix calculation processing using the image signal of the second color component (second color channel) and the image signal of the third color component (third color channel) is performed. Thereafter, the color tone adjustment circuit 24 applies the first color component image signal, the second color component image signal, and the third color component image signal after the above-described matrix calculation processing is performed. To apply gamma correction.
- the color tone adjustment circuit 24 sends the image signals of the first color component, the second color component, and the third color component after the above-described gamma correction processing to the encoding circuit 26 and the light control circuit 27. Output each.
- the color tone adjustment circuit 24 outputs the image signal of the first color component to the D / A conversion circuit 25a after the above-described gamma correction processing, and outputs the image signal of the second color component to the D / A. It outputs to the conversion circuit 25b and outputs the image signal of the third color component to the D / A conversion circuit 25c.
- the above-described color tone adjustment coefficient is an adjustment value calculated by the calculation process of the CPU 33 in the color tone adjustment operation, and is stored in a memory (not shown) of the color tone adjustment circuit 24 as a result of the calculation process.
- the above-described color tone adjustment operation is started at the timing when the CPU 33 detects an operation related to the change of the color tone displayed on the monitor 4 in the color tone setting switch 38 provided in the processor 3. Then, when an operation related to the change of the color tone displayed on the monitor 4 is performed, the CPU 33 performs a calculation process for calculating a color tone adjustment coefficient corresponding to the color tone after the change.
- the image signals of the first color component, the second color component, and the third color component output from the color tone adjustment circuit 24 are converted into analog video signals in the D / A conversion circuits 25a, 25b, and 25c, respectively. Is output to the monitor 4. Thereby, the monitor 4 displays an observation image corresponding to each observation mode.
- the image signals of the first color component, the second color component, and the third color component output from the color tone adjustment circuit 24 are subjected to encoding processing in the encoding circuit 26, and then digital filing.
- the data is output to the device 5 and the photography device 6. Accordingly, the digital filing device 5 records a still image when the CPU 33 detects an input operation on the release switch 16 as image data.
- the photographing apparatus 6 captures a still image when the CPU 33 detects an input operation on the release switch 16.
- the dimming circuit 27 has an appropriate light amount corresponding to the observation mode based on the signal levels of the image signals of the first color component, the second color component, and the third color component output from the color tone adjustment circuit 24.
- the diaphragm 12 is controlled so that the illumination light is supplied from the light source device 1.
- the dimming circuit 27 performs control to change the amplification factor of the amplification factor control circuit 29.
- the exposure time control circuit 28 is synchronized with the timing at which the optical filters 41, 42, and 43 are sequentially inserted on the optical path of the lamp 7 based on the timing signal output from the timing generator 30 and the output signal from the CPU 33.
- the electronic shutter of the CCD 14 is controlled so as to correspond to the output signal from the CPU 33.
- the exposure time in CCD14 is changed by control with respect to such an electronic shutter.
- the amplification factor control circuit 29 is synchronized with the timing at which the optical filters 41, 42, and 43 are sequentially inserted on the optical path of the lamp 7 based on the control by the dimming circuit 27 and the timing signal output from the timing generator 30.
- the charge amplifying device of the CCD 14 is controlled so that the amplification factor according to the control of the light control circuit 27 is obtained.
- the amplification factor in the CCD 14 is changed by controlling the charge amplifying device.
- the timing generator 30 generates and outputs a timing signal for appropriately synchronizing the operations of each unit of the endoscope system 301.
- the CCD driver 31 drives the CCD 14 based on the timing signal output from the timing generator 30 so as to synchronize with the timing at which the optical filters 41, 42 and 43 are sequentially inserted on the optical path of the lamp 7.
- the imaging actuator control circuit 32 determines the timing at which the optical filters 41, 42 and 43 are sequentially inserted on the optical path of the lamp 7, and the arrangement of the optical filter 117a in the filter switching device 39a. Control for synchronizing the switching timing of the state and the switching timing of the arrangement state of the optical filter 117b in the filter switching device 39b is performed on the imaging actuator 39.
- the CPU 33 detects operation states in the adjustment value setting switch 35, the color balance setting switch 36, the image processing setting switch 37, and the color tone setting switch 38 provided in the processor 3, and performs control and processing according to the detection result. Do.
- the CPU 33 detects an operation state of the image display selection switch 60 provided in the processor 3 and performs control for causing the monitor 4 to output an observation image corresponding to the detection result to the image processing circuit 23.
- the CPU 33 detects an operation state of the mode change switch 15 of the scope 2 connected to the processor 3 and performs control for changing to the observation mode according to the detection result on the motor 9 of the light source device 1 and the like.
- the CPU 33 detects an operation state of the release switch 16 of the scope 2 connected to the processor 3, and records a still image in the digital filing device 5 and / or a still image in the photography device 6 according to the detection result. Control related to shooting is performed.
- the CPU 33 reads information stored in the scope discriminating element 17, and performs control according to the read information.
- surgeon or the like connects each part of the endoscope system 301 and turns on the power to start the operation of each part.
- the CCD driver 31 drives the CCD 14 according to the timing chart of FIG. 17, for example, based on the timing signal from the timing generator 30.
- the CCD 14 operates such that the exposure period T1 as a period related to charge accumulation and the readout period T2 as a period related to sweeping out the accumulated charge during the exposure period T1 are alternately switched.
- the rotation drive of the motor 11 is started.
- the optical filters 41, 42, and 43 are sequentially replaced while being inserted into the optical path of the lamp 7 or retracted from the optical path of the lamp 7. Note that the insertion operation and the retraction operation of the optical filters 41, 42, and 43 accompanying the rotation drive of the motor 11 are performed, for example, at a timing according to the timing chart of FIG.
- the motor 11 sequentially inserts the optical filters 41, 42, and 43 on the optical path of the lamp 7 during the exposure period of the CCD 14, and places the optical filters 41, 42, and 43 on the optical path of the lamp 7 during the readout period of the CCD 14.
- the rotary filter 10 is rotated so as to be retreated.
- the surgeon or the like operates the mode changeover switch 15 of the scope 2 to give an instruction to shift the endoscope system 301 to a desired observation mode.
- the surgeon or the like for example, has a first fluorescent probe having an excitation wavelength of 600 to 650 nm and a fluorescence wavelength of 680 to 750 nm, and a second fluorescent probe having an excitation wavelength of 700 to 760 nm and a fluorescence wavelength of 790 to 850 nm. Is administered or dispersed in advance before the subject 201 is observed using the scope 2.
- the mode changeover switch 15 can switch to four observation modes corresponding to the number of filters provided in the changeover filter 8.
- the CPU 33 controls the motor 9 of the light source device 1 to place the first excitation light filter 51 on the optical path of the lamp 7. Interpose. That is, in the first observation mode described above, the surface-sequential first illumination light having the reference light in the wavelength band of 540 to 560 nm and the first excitation light in the wavelength band of 600 to 650 nm is the light guide. 13 is supplied.
- the imaging actuator control circuit 32 sequentially places the optical filters 41, 42, and 43 on the optical path of the lamp 7 based on the control of the CPU 33.
- the imaging actuator 39 is operated so as to synchronize the insertion timing and the switching timing of the arrangement state of the optical filter 117a in the filter switching device 39a.
- the imaging actuator control circuit 32 performs the exposure period of the CCD 14 and the optical filter 41 is on the optical path of the lamp 7.
- the arrangement state of the optical filter 117a of the filter switching device 39a is set to the first arrangement state (interpolation state), and the arrangement state of the optical filter 117b of the filter switching device 39b is set to the above-described state.
- the second arrangement state is assumed.
- the imaging actuator control circuit 32 has the optical filter 42 inserted on the optical path of the lamp 7 during the readout period of the CCD 14.
- the arrangement state of the optical filter 117a of the filter switching device 39a is set to the second arrangement state (retracted state) described above, and
- the arrangement state of the optical filter 117b of the filter switching device 39b is the above-described second arrangement state (retracted state).
- the first fluorescent probe is excited by the first illumination light (first excitation light) emitted from the light guide 13, and therefore has a wavelength band of 680 to 750 nm.
- the first fluorescence and reference light in the wavelength band of 540 to 560 nm are sequentially imaged on the imaging surface of the CCD 14 as return light from the subject 201.
- the CPU 33 controls the motor 9 of the light source device 1 to place the second excitation light filter 55 on the optical path of the lamp 7. Interpose. That is, in the second observation mode described above, the surface-sequential second illumination light having the reference light in the wavelength band of 540 to 560 nm and the second excitation light in the wavelength band of 700 to 760 nm is the light guide. 13 is supplied.
- the imaging actuator control circuit 32 sequentially places the optical filters 41, 42, and 43 on the optical path of the lamp 7 based on the control of the CPU 33.
- the imaging actuator 39 is operated so as to synchronize the insertion timing and the switching timing of the arrangement state of the optical filter 117b in the filter switching device 39b.
- the imaging actuator control circuit 32 performs the exposure period of the CCD 14 and the optical filter 43 is on the optical path of the lamp 7.
- the arrangement state of the optical filter 117a of the filter switching device 39a is set to the second arrangement state (retracted state), and the arrangement state of the optical filter 117b of the filter switching device 39b is set to the above-described second arrangement state. 1 is an arrangement state (an insertion state).
- the imaging actuator control circuit 32 inserts the optical filter 41 on the optical path of the lamp 7 during the readout period of the CCD 14.
- the arrangement state of the optical filter 117a of the filter switching device 39a is set to the second arrangement state (retracted state) described above, and
- the arrangement state of the optical filter 117b of the filter switching device 39b is the above-described second arrangement state (retracted state).
- the second fluorescent probe is excited by the second illumination light (second excitation light) emitted from the light guide 13, and therefore has a wavelength band of 790 to 850 nm.
- the second fluorescence and reference light in the wavelength band of 540 to 560 nm are sequentially imaged on the imaging surface of the CCD 14 as return light from the subject 201.
- the CPU 33 controls the motor 9 of the light source device 1 to place the third excitation light filter 56 on the optical path of the lamp 7. Interpose. That is, in the third observation mode, the reference light in the wavelength band of 540 to 560 nm, the first excitation light in the wavelength band of 600 to 650 nm, and the second excitation light in the wavelength band of 700 to 760 nm, The surface-sequential third illumination light is supplied to the light guide 13.
- the imaging actuator control circuit 32 sequentially places the optical filters 41, 42, and 43 on the optical path of the lamp 7 based on the control of the CPU 33.
- the imaging actuator 39 is operated so as to synchronize the insertion timing, the switching timing of the arrangement state of the optical filter 117a in the filter switching device 39a, and the switching timing of the arrangement state of the optical filter 117b in the filter switching device 39b.
- the imaging actuator control circuit 32 performs the exposure period of the CCD 14 and the optical filter 41 is on the optical path of the lamp 7.
- the arrangement state of the optical filter 117a of the filter switching device 39a is set to the first arrangement state (interpolation state), and the arrangement state of the optical filter 117b of the filter switching device 39b is set to the above-described state.
- the second arrangement state is assumed.
- the imaging actuator control circuit 32 is configured so that the exposure period of the CCD 14 and the optical filter 43 are inserted on the optical path of the lamp 7 in the third observation mode.
- the arrangement state of the optical filter 117a of the filter switching device 39a is set to the second arrangement state (retracted state), and the arrangement state of the optical filter 117b of the filter switching device 39b is set to the first arrangement state.
- the imaging actuator control circuit 32 has the readout period of the CCD 14 or the optical filter 42 interposed on the optical path of the lamp 7.
- the arrangement state of the optical filter 117a of the filter switching device 39a is set to the second arrangement state (retracted state), and the arrangement state of the optical filter 117b of the filter switching device 39b is set to the second arrangement state.
- the first fluorescent probe and the second fluorescent probe are generated by the third illumination light (first excitation light and second excitation light) emitted from the light guide 13. Is excited, the first fluorescence in the wavelength band of 680 to 750 nm, the second fluorescence in the wavelength band of 790 to 850 nm, and the reference light in the wavelength band of 540 to 560 nm are returned from the subject 201. Images are sequentially formed on the imaging surface of the CCD 14 as light.
- the CPU 33 controls the motor 9 of the light source device 1 to insert the normal light filter 50 on the optical path of the lamp 7.
- red light (R light) in the wavelength band of 600 to 650 nm green light (G light) in the wavelength band of 500 to 600 nm
- blue light (G light) in the wavelength band of 400 to 500 nm B-sequential fourth illumination light having B light
- the imaging actuator control circuit 32 performs the arrangement state of the optical filter 117 a of the filter switching device 39 a and the filter based on the control of the CPU 33.
- the arrangement state of the optical filter 117b of the switching device 39b is defined as the above-described second arrangement state (retracted state).
- the reflected light of the fourth illumination light (R light, G light, and B light) emitted from the light guide 13 is imaged by the CCD 14 as return light from the subject 201. Images are sequentially formed on the surface.
- imaging signals corresponding to the first fluorescence, the second fluorescence, and the reference light are sequentially output from the CCD 14, respectively.
- Each image pickup signal sequentially output from the CCD 14 passes through the preprocess circuit 18, the A / D conversion circuit 19, the color balance correction circuit 20, and the multiplexer 21, and then is stored in the synchronization memories 22a, 22b, and 22c. Is done.
- an image related to the first image signal corresponding to the first fluorescence is as shown in FIG. 22, for example.
- an image related to the second image signal corresponding to the second fluorescence is as shown in FIG. 23, for example.
- an image related to the third image signal corresponding to the reference light is as shown in FIG. 24, for example.
- the display mode of the observation image displayed on the monitor 4 can be variously switched by operating the image display selection switch 60.
- the CPU 33 controls the image processing circuit 23 to change the image of FIG. 22 and the image of FIG. A composite image shown in FIG. 25 is generated by assigning and synthesizing different color channels among the third color channels (R, G, and B channels). Thereafter, the CPU 33 controls the image processing circuit 23 so as to display the monochrome image of FIG. 22 and the composite image of FIG. 25 side by side on the same screen. Thereby, the monitor 4 displays an observation image of the first display mode as shown in FIG. According to the observation image of the first display mode in FIG. 26, the surgeon or the like performs observation while comparing the information related to the portion where the first fluorescent probe is integrated with the information related to the structure of the subject 201. It can be carried out.
- the CPU 33 controls the image processing circuit 23 to change the image of FIG. 23 and the image of FIG. A composite image shown in FIG. 27 is generated by assigning and synthesizing different color channels among the third color channels (R, G, and B channels). Thereafter, the CPU 33 controls the image processing circuit 23 so as to display the monochrome image of FIG. 23 and the composite image of FIG. 27 side by side on the same screen. Thereby, the monitor 4 displays an observation image of the second display mode as shown in FIG. According to the observation image of the second display mode in FIG. 28, the surgeon or the like performs observation while comparing the information related to the portion where the second fluorescent probe is accumulated with the information related to the structure of the subject 201. It can be carried out.
- the CPU 33 controls the image processing circuit 23 to change the image of FIG. 22 and the image of FIG. A composite image shown in FIG. 29 is generated by being assigned to different color channels among the third color channels (R, G, and B channels), and the image shown in FIG. 22, FIG. 23, and FIG. 30 is generated by assigning and synthesizing these images to different color channels of the first to third color channels (R, G, and B channels).
- the CPU 33 controls the image processing circuit 23 so as to display the composite image of FIG. 29 and the composite image of FIG. 30 side by side on the same screen.
- the monitor 4 displays an observation image of the third display mode as shown in FIG.
- the surgeon compares the information related to the portion where the first and second fluorescent probes are integrated with the information related to the structure of the subject 201. While observing.
- the image is not limited to a display mode in which two images are arranged, and is an image generated by using the images in FIGS. 22, 23, and 24 one by one or by combining a plurality of images.
- a display mode in which three or more images are arranged may be used. Note that the observation image shown in FIG. 32 shows an example in which the image of FIG. 22, the image of FIG. 23, and the image of FIG. 24 are displayed side by side on the same screen of the monitor 4.
- a portion corresponding to the image of FIG. 22, a portion corresponding to the image of FIG. 23, and an image of FIG. can be individually changed.
- the CPU 33 includes a portion corresponding to the image in FIG. 22, a portion corresponding to the image in FIG. 23, and a portion corresponding to the image in FIG. 24 in the observation image displayed on the monitor 4.
- an arithmetic process is performed to calculate a color tone adjustment coefficient corresponding to the desired color tone.
- the CPU 33 calculates a coefficient used for matrix calculation processing in the color tone adjustment circuit 24 as the color tone adjustment coefficient described above, and stores the calculation result in a memory (not shown) of the color tone adjustment circuit 24.
- the color tone adjustment circuit 24 stores a color tone adjustment coefficient stored in a memory (not shown), an image signal of a first color component (first color channel) corresponding to the image of FIG. 22, for example, and an image of FIG. Matrix calculation using the image signal of the second color component (second color channel) corresponding to the image signal of the third color component (third color channel) corresponding to the image of FIG. Process.
- the color tone of the portion corresponding to the image of FIG. 22, the portion corresponding to the image of FIG. 23, and the portion corresponding to the image of FIG. Can be made tones.
- a portion corresponding to the image of FIG. 22 and a portion corresponding to the image of FIG. 24 may be displayed on the monitor 4.
- the brightness of the image of FIG. 22 as the image corresponding to the first fluorescence is the brightness of the image of FIG. 24 as the image corresponding to the reference light. Slightly too dark or too dark can occur.
- a situation where the brightness of the image of FIG. 23 as the image corresponding to the second fluorescence is too bright or too dark relative to the brightness of the image of FIG. 24 as the image corresponding to the reference light. Can occur.
- the brightness of the second image signal corresponding to the fluorescence is adjusted.
- a specific example of processing performed in such brightness adjustment will be described below.
- the brightness parameter to be adjusted in the processing described below may be an average value of the signal level of the image signal or a peak value of the signal level of the image signal.
- the CPU 33 reads from the image processing circuit 23 the first image signal corresponding to the first fluorescence, the second image signal corresponding to the second fluorescence, and the third image signal corresponding to the reference light. At the same time, the brightness of each read image signal is detected. Thereby, the CPU 33 obtains a detection result as shown in FIG. 33, for example.
- the CPU 33 reads the brightness adjustment value stored in a memory (not shown) before and after detecting the brightness of each image signal. Further, the CPU 33 sets a value obtained by subtracting the brightness adjustment value from the brightness of the image corresponding to the reference light as the brightness lower limit value TH1, and adjusts the brightness adjustment to the brightness of the image corresponding to the reference light. A value obtained by adding the values is set as the brightness upper limit value TH2. Thereafter, the CPU 33 determines whether or not the brightness of the first image signal and the brightness of the second image signal are not less than the lower limit value TH1 and not more than the upper limit value TH2.
- the lower limit value TH1 and the upper limit value TH2 may be fixed values determined in advance, or may be changed to desired values by the operator or the like according to the operation of the adjustment value setting switch 35. It may be possible. Further, the lower limit value TH1 and the upper limit value TH2 may be set as common values between the image signals, or may be set as individual values for each image signal. .
- the CPU 33 further detects that the brightness of the first image signal is lower than the lower limit value TH1, for example, in the detection result illustrated in FIG. 33, the brightness of the first image signal is lower than the lower limit value TH1.
- An arithmetic process for calculating the adjustment value as described above is performed.
- the CPU 33 further detects that the brightness of the second image signal exceeds the upper limit value TH2 in the detection result illustrated in FIG. 33, for example, the brightness of the second image signal becomes the upper limit value.
- An arithmetic process is performed to calculate an adjustment value that is equal to or less than TH2.
- the CPU 33 uses, for example, matrix calculation processing as an adjustment value that sets the brightness of the first image signal to the lower limit value TH1 or more and the brightness of the second image signal to the upper limit value TH2 or less.
- a color tone adjustment coefficient is calculated and output to the color tone adjustment circuit 24.
- the color tone adjustment circuit 24 outputs the color tone adjustment coefficient output from the CPU 33, the image signal of the first color component (first color channel) output from the image processing circuit 23, and the second color component ( A matrix calculation process using the image signal of the second color channel) and the image signal of the third color component (third color channel) is performed.
- the CPU 33 adjusts the brightness of the first image signal to the lower limit value TH1 and adjusts the brightness of the second image signal to the upper limit value TH2 or less, for example, for controlling an electronic shutter.
- Control parameters to be used are calculated and output to the exposure time control circuit 28.
- the exposure time control circuit 28 adjusts the exposure time in the CCD 14 by controlling the electronic shutter of the CCD 14 based on the timing signal output from the timing generator 30 and the control parameter output from the CPU 33. .
- the brightness of the first image signal is increased to be equal to or higher than the lower limit value TH1, and the second image signal The brightness is reduced so as to be equal to or lower than the upper limit value TH2.
- the brightness adjustment value stored in a memory may be a fixed value determined in advance or according to the operation of the adjustment value setting switch 35. It may be possible to change it to a desired value.
- the brightness adjustment value described above for example, by setting the brightness adjustment value described above to 0, the brightness of the first image signal and the brightness of the second image signal are set to the third image. It is also possible to adjust to the same brightness as the signal.
- the CCD 14 of this embodiment may be configured as a color CCD in which a color filter (not shown) is arranged on the imaging surface.
- the CPU 33 causes the normal light filter 50 to be inserted on the optical path of the lamp 7 when the mode changeover switch 15 detects that the fourth observation mode is selected. Control is performed on the motor 9, and control for retracting the rotary filter 10 from the optical path of the lamp 7 is performed on the motor 11.
- rotary filter 10 of the present embodiment is not limited to the configuration illustrated in FIG. 13, and may be configured as, for example, the rotary filter 10 a illustrated in FIG. 35.
- the rotary filter 10a includes an optical filter 41a that passes light in the wavelength band of 600 to 650 nm, an optical filter 42a that passes light in the wavelength band of 540 to 560 nm, and an optical filter that passes light in the wavelength band of 700 to 760 nm. 43a, and a first filter group consisting of 43a along the circumferential direction on the outer peripheral side of the disk.
- the rotary filter 10a also passes an optical filter 41b that passes light in the wavelength band of 600 to 650 nm, an optical filter 42b that passes light in the wavelength band of 500 to 600 nm, and light in the wavelength band of 400 to 500 nm.
- a second filter group including the optical filter 43b is provided along the circumferential direction on the inner peripheral side of the disk.
- the CPU 33 when the CPU 33 detects that the above-described first, second, or third observation mode is selected by the mode changeover switch 15, the CPU 33 moves the rotary filter 10 a to the lamp 7.
- a filter moving mechanism (not shown) that can be moved in a direction perpendicular to the optical path, the arrangement state of the rotary filter 10a is changed so that each filter of the first filter group moves on the optical path of the lamp 7.
- the arrangement is such that it can be traversed sequentially.
- the CPU 33 when the CPU 33 detects that the above-described fourth observation mode is selected by the mode changeover switch 15, the CPU 33 controls the filter moving mechanism to thereby control the rotary filter.
- the arrangement state of 10a is an arrangement state in which each filter of the second filter group described above can sequentially traverse the optical path of the lamp 7.
- the light source device 1 includes the rotation filter 10 a instead of the rotation filter 10, for example, a period during which the optical filter 41 a is inserted on the optical path of the lamp 7
- the period in which the optical filter 42a is inserted on the optical path of the lamp 7 is matched with that of the optical filter 42
- the period in which the optical filter 43a is inserted on the optical path of the lamp 7 is matched with that of the optical filter 43.
- the endoscope system 301 of the present embodiment uses the brightness of the first image signal corresponding to the first fluorescence on the basis of the brightness of the third image signal corresponding to the reference light.
- the brightness of the second image signal corresponding to the second fluorescence can be adjusted. Therefore, the endoscope system 301 of the present embodiment can improve the diagnostic ability when making a diagnosis by applying a plurality of fluorescent probes to the observation target site.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Animal Behavior & Ethology (AREA)
- Optics & Photonics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Signal Processing (AREA)
- Endoscopes (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
Description
Claims (4)
- 複数の蛍光物質をそれぞれ励起させるための複数の励起光と、参照光と、を出射可能な光源部と、
前記複数の励起光を前記複数の蛍光物質に対して出射することにより発せられる複数の蛍光と、前記参照光の反射光と、を撮像する撮像部と、
前記撮像部により撮像された前記複数の蛍光と、前記参照光の反射光と、に応じた画像信号をそれぞれ生成する画像生成部と、
前記複数の蛍光に応じた複数の画像信号の明るさと、前記参照光の反射光に応じた画像信号の明るさと、をそれぞれ検出する明るさ検出部と、
前記明るさ検出部における検出結果に基づき、前記参照光の反射光に応じた画像信号の明るさを基準として、前記複数の蛍光に応じた複数の画像信号のうちの少なくとも一の画像信号の明るさを調整する明るさ調整部と、
を有することを特徴とする蛍光観察装置。 - 前記明るさ調整部は、
前記参照光の反射光に応じた画像信号の明るさを基準とした調整値を算出する調整値設定部と、
前記調整値設定部において算出された前記調整値と、前記複数の蛍光に応じた複数の画像信号と、前記参照光の反射光に応じた画像信号と、を用いた演算処理を行う画像調整部と、
を有することを特徴とする請求項1に記載の蛍光観察装置。 - 前記明るさ調整部は、
前記参照光の反射光に応じた画像信号の明るさを基準とした調整値を算出する調整値設定部と、
前記調整値設定部において算出された前記調整値に基づき、前記撮像部に設けられた撮像素子の露光時間を制御する露光時間制御部と、
を有することを特徴とする請求項1に記載の蛍光観察装置。 - 前記明るさ検出部は、さらに、前記複数の蛍光に応じた複数の画像信号の明るさが、前記参照光の反射光に応じた画像信号の明るさを基準として設定される所定の範囲にそれぞれ入っているか否かを検出し、
前記明るさ調整部は、前記明るさ検出部における検出結果に基づき、前記複数の蛍光に応じた複数の画像信号のうち、前記所定の範囲から外れた各画像信号の明るさを、前記所定の範囲内に入れるように調整する
ことを特徴とする請求項1に記載の蛍光観察装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010547884A JP4773583B2 (ja) | 2009-10-20 | 2010-09-14 | 蛍光観察装置 |
EP10824738.8A EP2384689B1 (en) | 2009-10-20 | 2010-09-14 | Fluorescence observation device |
CN2010800096555A CN102333474A (zh) | 2009-10-20 | 2010-09-14 | 荧光观察装置 |
US12/966,400 US20110267458A1 (en) | 2009-10-20 | 2010-12-13 | Fluorescence observation device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-241286 | 2009-10-20 | ||
JP2009241286 | 2009-10-20 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/966,400 Continuation US20110267458A1 (en) | 2009-10-20 | 2010-12-13 | Fluorescence observation device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011048887A1 true WO2011048887A1 (ja) | 2011-04-28 |
Family
ID=43900127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/065828 WO2011048887A1 (ja) | 2009-10-20 | 2010-09-14 | 蛍光観察装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110267458A1 (ja) |
EP (1) | EP2384689B1 (ja) |
JP (1) | JP4773583B2 (ja) |
CN (1) | CN102333474A (ja) |
WO (1) | WO2011048887A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103068298B (zh) * | 2011-04-11 | 2016-05-11 | 奥林巴斯株式会社 | 内窥镜装置 |
EP2724657B1 (en) * | 2011-06-21 | 2015-08-05 | Olympus Corporation | Fluorescence observation system, and method fluorescence image processing |
JP5926909B2 (ja) | 2011-09-07 | 2016-05-25 | オリンパス株式会社 | 蛍光観察装置 |
WO2014126000A1 (ja) * | 2013-02-13 | 2014-08-21 | オリンパス株式会社 | 蛍光観察装置 |
CN105934191B (zh) * | 2014-01-31 | 2018-01-02 | 奥林巴斯株式会社 | 荧光观察装置 |
CN105473052B (zh) * | 2014-06-23 | 2017-08-08 | 奥林巴斯株式会社 | 摄像装置以及内窥镜装置 |
US10928310B2 (en) * | 2016-01-28 | 2021-02-23 | Siemens Healthcare Diagnostics Inc. | Methods and apparatus for imaging a specimen container and/or specimen using multiple exposures |
CN106303279B (zh) * | 2016-08-31 | 2019-08-09 | 北京数字精准医疗科技有限公司 | 多光谱内窥镜自动曝光成像方法 |
CN108670172A (zh) * | 2018-03-20 | 2018-10-19 | 广东欧谱曼迪科技有限公司 | 基于测光反馈的荧光导航系统及其术中荧光导航调整方法 |
CN109272917B (zh) * | 2018-10-25 | 2021-09-28 | Oppo广东移动通信有限公司 | 屏幕亮度调节方法、装置、存储介质及电子设备 |
CN114431815A (zh) * | 2021-12-20 | 2022-05-06 | 上海安翰医疗技术有限公司 | 胶囊内窥镜成像装置、方法及胶囊内窥镜 |
CN114689558B (zh) * | 2022-05-31 | 2022-10-28 | 中国科学技术大学 | 无背景宽场与低损超分辨两用成像装置及成像方法 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0654792A (ja) * | 1991-05-08 | 1994-03-01 | Xillix Technol Corp | 撮像装置 |
JP2005329115A (ja) * | 2004-05-21 | 2005-12-02 | Olympus Corp | 蛍光内視鏡装置 |
JP2006181387A (ja) * | 2006-03-07 | 2006-07-13 | Olympus Corp | 内視鏡装置 |
JP2007020775A (ja) * | 2005-07-14 | 2007-02-01 | Pentax Corp | 蛍光観察内視鏡システム |
JP2007075198A (ja) * | 2005-09-12 | 2007-03-29 | Pentax Corp | 電子内視鏡システム |
JP2007202621A (ja) * | 2006-01-31 | 2007-08-16 | Fujinon Corp | 電子内視鏡装置 |
JP2008161550A (ja) | 2006-12-28 | 2008-07-17 | Olympus Corp | 内視鏡システム |
JP2009008717A (ja) | 2007-06-26 | 2009-01-15 | Olympus Corp | 光調節装置及び光学装置 |
JP2009008719A (ja) | 2007-06-26 | 2009-01-15 | Olympus Corp | 光調節装置及び光学装置 |
JP2009241286A (ja) | 2008-03-28 | 2009-10-22 | Yamaha Motor Co Ltd | 印刷装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4199510B2 (ja) * | 2002-09-30 | 2008-12-17 | Hoya株式会社 | 診断補助用装置 |
JP2005087450A (ja) * | 2003-09-17 | 2005-04-07 | Pentax Corp | 蛍光観察内視鏡システム及び蛍光観察内視鏡用光源装置 |
JP4575720B2 (ja) * | 2004-07-23 | 2010-11-04 | Hoya株式会社 | 電子内視鏡システム |
JP4922622B2 (ja) * | 2006-02-16 | 2012-04-25 | オリンパスメディカルシステムズ株式会社 | 内視鏡カラーバランス調整具および内視鏡システム |
JP2009219719A (ja) * | 2008-03-18 | 2009-10-01 | Fujifilm Corp | 内視鏡装置 |
-
2010
- 2010-09-14 JP JP2010547884A patent/JP4773583B2/ja active Active
- 2010-09-14 CN CN2010800096555A patent/CN102333474A/zh active Pending
- 2010-09-14 EP EP10824738.8A patent/EP2384689B1/en active Active
- 2010-09-14 WO PCT/JP2010/065828 patent/WO2011048887A1/ja active Application Filing
- 2010-12-13 US US12/966,400 patent/US20110267458A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0654792A (ja) * | 1991-05-08 | 1994-03-01 | Xillix Technol Corp | 撮像装置 |
JP2005329115A (ja) * | 2004-05-21 | 2005-12-02 | Olympus Corp | 蛍光内視鏡装置 |
JP2007020775A (ja) * | 2005-07-14 | 2007-02-01 | Pentax Corp | 蛍光観察内視鏡システム |
JP2007075198A (ja) * | 2005-09-12 | 2007-03-29 | Pentax Corp | 電子内視鏡システム |
JP2007202621A (ja) * | 2006-01-31 | 2007-08-16 | Fujinon Corp | 電子内視鏡装置 |
JP2006181387A (ja) * | 2006-03-07 | 2006-07-13 | Olympus Corp | 内視鏡装置 |
JP2008161550A (ja) | 2006-12-28 | 2008-07-17 | Olympus Corp | 内視鏡システム |
JP2009008717A (ja) | 2007-06-26 | 2009-01-15 | Olympus Corp | 光調節装置及び光学装置 |
JP2009008719A (ja) | 2007-06-26 | 2009-01-15 | Olympus Corp | 光調節装置及び光学装置 |
JP2009241286A (ja) | 2008-03-28 | 2009-10-22 | Yamaha Motor Co Ltd | 印刷装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2384689A4 |
Also Published As
Publication number | Publication date |
---|---|
JP4773583B2 (ja) | 2011-09-14 |
EP2384689B1 (en) | 2016-12-07 |
US20110267458A1 (en) | 2011-11-03 |
JPWO2011048887A1 (ja) | 2013-03-07 |
EP2384689A4 (en) | 2012-01-18 |
EP2384689A1 (en) | 2011-11-09 |
CN102333474A (zh) | 2012-01-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4773583B2 (ja) | 蛍光観察装置 | |
WO2011048886A1 (ja) | 蛍光観察装置 | |
KR101015006B1 (ko) | 내시경 장치 | |
JP5372356B2 (ja) | 内視鏡装置及び内視鏡装置の作動方法 | |
WO2012043771A1 (ja) | 撮像装置 | |
JP4772235B2 (ja) | 内視鏡装置 | |
US20060155166A1 (en) | Endoscope device | |
WO2012176561A1 (ja) | 医療機器 | |
WO2006077799A1 (ja) | 電子内視鏡装置 | |
JPWO2014125724A1 (ja) | 内視鏡装置 | |
US7369073B2 (en) | Microscopy system and recording method for visualizing fluorescence | |
WO2016080130A1 (ja) | 観察装置 | |
JP4394395B2 (ja) | 内視鏡システム | |
JP5139602B2 (ja) | 医療装置 | |
JP2009039432A (ja) | 内視鏡装置 | |
JP5558635B2 (ja) | 内視鏡装置 | |
JP4744279B2 (ja) | 電子内視鏡装置 | |
WO2012124227A1 (ja) | 医療装置 | |
JP4716801B2 (ja) | 内視鏡撮像システム | |
JP6113033B2 (ja) | 内視鏡装置 | |
JP4439245B2 (ja) | 電子内視鏡装置 | |
JP2013094489A (ja) | 内視鏡装置 | |
JP2010124921A (ja) | 画像取得方法および装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080009655.5 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010547884 Country of ref document: JP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10824738 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2010824738 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010824738 Country of ref document: EP |