-
公开(公告)号：DE602004019742D1
公开(公告)日：2009-04-16
申请号：DE602004019742
申请日：2004-10-29
Applicant: OLYMPUS CORP
Inventor： IMAIZUMI KATSUICHI , DOGUCHI NOBUYUKI , TAKAHASHI YOSHINORI , OZAWA TAKESHI , TAKEHANA SAKAE , HIRAO ISAMI
Abstract: An apparatus having an image pick-up function includes color balance adjustment means and control means. The color balance adjustment means adjusts the color balance of image signals obtained by picking up an image of an object through image pickup means. The control means controls the color balance adjustment means based on feature data that characterizes the color of the object. Since the color balance is adjusted based on the feature data characterizing the color of the object, the color of an image of the object can be properly adjusted according to the object.
-
公开(公告)号：DE602004025539D1
公开(公告)日：2010-04-01
申请号：DE602004025539
申请日：2004-10-29
Applicant: OLYMPUS CORP
Inventor： IMAIZUMI KATSUICHI , HIRAO ISAMI , TAKAHASHI YOSHINORI , OZAWA TAKESHI , TAKEHANA SAKAE , DOGUCHI NOBUYUKI
IPC: A61B1/00 , A61B1/04 , H04N5/225 , H04N5/235 , H04N5/335 , H04N5/353 , H04N5/357 , H04N5/372 , H04N9/07
Abstract: An image pick-up apparatus includes an image pick-up device which picks-up an image of a subject and outputs an image signal, a first-amplitude changing portion which varies an amplitude of the image signal outputted form the image pick-up device, a second-amplitude changing portion which varies the amplitude of the image signal to be outputted, a comparing portion which compares the amplitude of the image signal with a value of a target amplitude, and a control portion which controls the first- and second-amplitude changing portions based on the comparison result of the comparing portion and changes the amplitude of the image signal so that it is approximate to the target amplitude so that an observed image of the subject displayed on display means has a desired brightness.
-
公开(公告)号：DE60228165D1
公开(公告)日：2008-09-25
申请号：DE60228165
申请日：2002-05-14
Applicant: OLYMPUS CORP
Inventor： UENO HITOSHI , OZAWA TAKESHI , NAKAMURA KAZUNARI , HIRAO ISAMI , IBE HIROSHI , YOSHIMITSU KOICHI , MORIZANA YUICHI , KANEKO MAMORU , AKIMOTO SHUNYA , TERAKUBO MASAKI , IMAIZUMI KATSUICHI , DOKUCHI NOBUYUKI , TAKEHANA SAKAE
Abstract: In a light source unit, a switchable filter section in which an RGB filter and a fluorescence observation filter can be shifted into the light path is disposed in front of a lamp. When fluorescence image mode is selected, excitation light in a part of the wavelength band of the blue wavelength band is supplied to an electronic endoscope, and the excitation light which is reflected by the subject is shielded by an excitation light shielding filter situated in front of a CCD, whereby a fluorescence image can be obtained. On the other hand, if normal-light image mode is selected, then R, G, B light is supplied sequentially, and even under illumination of B light, the color component image in the wavelength bands which are not shielded by the excitation light shielding filter are captured, thereby yielding a normal-light image also, and hence making it possible to capture both a fluorescence image and a normal-light image by means of a single image pickup element.
-
公开(公告)号：DE60224321T2
公开(公告)日：2009-01-08
申请号：DE60224321
申请日：2002-05-16
Applicant: OLYMPUS CORP
Inventor： UENO HITOSHI , OZAWA TAKESHI , NAKAMURA KAZUNARI , HIRAO ISAMI , IBE HIROSHI , YOSHIMITSU KOICHI , MORIZANE YUICHI , KANEKO MAMORU , AKIMOTO SHUNYA , TERAKUBO MASAKI , IMAIZUMI KATSUICHI , DOGUCHI NOBUYUKI , TAKEHANA SAKAE , GONO KAZUHIRO
Abstract: In the light source unit 3A, a switching filter section 14, which can switch the RGB filter for normal-light observation and a filter for fluorescent observation on the optical path, is installed in front of the lamp 12, where if the fluorescent image mode is selected, the excitation light in a part of the blue wavelength band is supplied to the electronic endoscope 2A, and the excitation light reflected by the subject side is shielded by the excitation light cut filter 27 in front of the CCD 28 so as to obtain the fluorescent image, and also the signal of the fluorescent image and the signals of the two reflected light images which are set in a predetermined wavelength band are passed through the image processing circuit 38, where a matrix circuit for appropriately allocating the color signals of the R, G and B channels is installed, and as a result, the images can be displayed on the monitor 5 in pseudo-colors in hues which allow easy identification of a normal tissue and a pathologically affected tissue.
-
公开(公告)号：AU2006209346B2
公开(公告)日：2008-12-18
申请号：AU2006209346
申请日：2006-01-16
Applicant: OLYMPUS CORP
Inventor： TAKAHASHI YOSHINORI , OZAWA TAKESHI
Abstract: In the present invention, an abnormality determination circuit outputs an abnormality determination signal when determining an abnormal pixel, captures images of a synchronization memory F, a synchronization memory G, and a synchronization memory R at the time in a temporary memory. Also, an abnormality position display circuit 52 is controlled to display, in a superimposing manner, a mark indicating a position with the abnormal pixel on the images captured in the temporary memory. Still image data of a normal image marked in the superimposing manner and stored in the temporary memory is outputted to a D/A conversion circuit, and thus displayed in a thumbnail form on a monitor. This allows an area suspected of having abnormal tissue to be easily and reliably identified on a normal color endoscopic image.
-
Patent Agency Ranking
公开(公告)号：DE602004008376D1
公开(公告)日：2007-10-04
申请号：DE602004008376
申请日：2004-06-17
Applicant: OLYMPUS CORP
Inventor： IMAIZUMI KATSUICHI , HIRAO ISAMI , TAKAHASHI YOSHINORI , OZAWA TAKESHI , DOGUCHI NOBUYUKI , TAKEHANA SAKAE
Abstract: The electronic endoscope device in accordance with the present invention comprises an image pick-up unit capable of acquiring an object image with respect to illumination light employed for illuminating the object for each prescribed wavelength band, an exposure period setting circuit for setting the exposure period of the image pick-up unit corresponding to the each wavelength band, an amplification circuit for amplifying picked-up image signals of the object image obtained with the image pick-up unit corresponding to the each wavelength band, and a control circuit for controlling the amplification circuit such that the picked-up image signals corresponded to the each wavelength band of the object image that are acquired with the image pick-up unit at the exposure period set corresponding to the each wavelength band set by the exposure period setting circuit are amplified at amplification factors computed corresponding to the exposure period that is set corresponding to the each wavelength band.
-
公开(公告)号：AU2006209346A1
公开(公告)日：2006-07-27
申请号：AU2006209346
申请日：2006-01-16
Applicant: OLYMPUS CORP
Inventor： TAKAHASHI YOSHINORI , OZAWA TAKESHI
Abstract: In the present invention, an abnormality determination circuit outputs an abnormality determination signal when determining an abnormal pixel, captures images of a synchronization memory F, a synchronization memory G, and a synchronization memory R at the time in a temporary memory. Also, an abnormality position display circuit 52 is controlled to display, in a superimposing manner, a mark indicating a position with the abnormal pixel on the images captured in the temporary memory. Still image data of a normal image marked in the superimposing manner and stored in the temporary memory is outputted to a D/A conversion circuit, and thus displayed in a thumbnail form on a monitor. This allows an area suspected of having abnormal tissue to be easily and reliably identified on a normal color endoscopic image.
-
公开(公告)号：DE60304623D1
公开(公告)日：2006-05-24
申请号：DE60304623
申请日：2003-06-25
Applicant: OLYMPUS CORP
Inventor： OZAWA TAKESHI , IMAIZUMI KATSUICHI , AKIMOTO SHUNYA , GONO KAZUHIRO
Abstract: An image processing device having a very straightforward construction, for obtaining an image in which normal tissue and diseased tissue are easy to identify, comprises: an image synthesizing section that generates a synthesized image by synthesizing an image signal of reflected light image produced by illumination light obtained by illuminating body tissue with illumination light and an image signal of a fluorescent image obtained by illuminating the body tissue with excitation light; and a gain adjustment section that adjusts the gain of the image signal of the reflected light image and/or the image signal of the fluorescent image such that the boundary of the hues of the normal tissue and diseased tissue found from the optical characteristics of the respective tissues is contained in a predetermined range with respect to a prescribed standard chromaticity diagram, depending on whether the body tissue that is displayed on the synthesized image generated by the image synthesizing section is normal tissue or diseased tissue.
-
公开(公告)号：CA2595082C
公开(公告)日：2012-03-06
申请号：CA2595082
申请日：2006-01-16
Applicant: OLYMPUS CORP
Inventor： OZAWA TAKESHI , TAKAHASHI YOSHINORI
Abstract: In an electronic endoscope, when an error judgment circuit judges a pixel has an error, it outputs an error judgment signal and temporarily acquires images of a synchronization memory F, a synchronization memory G, and a synchronization memory R in a memory. Simultaneously with this, the error judgment circuit controls an error position display circuit (52). The error position display circuit superimposes/displays a mark indicating the position where the error pixel exists on the image acquired temporarily in the memory and outputs still image data on the normal image stored in the temporary memory superimposed by the mark to a D/A conversion circuit, thereby causing a monitor to perform thumbnail display. Thus, it is possible to easily and surely identify an area which is suspected to be an abnormal tissue by an ordinary color endoscope image.
-
公开(公告)号：DE602004026245D1
公开(公告)日：2010-05-12
申请号：DE602004026245
申请日：2004-06-16
Applicant: OLYMPUS CORP
Inventor： DOGUCHI NOBUYUKI , TAKAHASHI YOSHINORI , IMAIZUMI KATSUICHI , OZAWA TAKESHI , TAKEHANA SAKAE , HIRAO ISAMI
IPC: A61B1/04 , G01N21/64 , A61B1/00 , A61B1/045 , A61B5/00 , G02B23/24 , H04N5/225 , H04N5/232 , H04N5/235 , H04N7/18 , H04N9/07
Abstract: An endoscope apparatus (1) includes an endoscope (2) that has a solid-state image-pickup device (19) in which charges are accumulated in order to pick up an object image. The endoscope apparatus (1) further comprises a memory (22) in which a plurality of pieces of information on the accumulation period during which charges are accumulated in the solid-state image-pickup device (19) is stored, and a drive unit (30) that controls the accumulation period, during which charges are accumulated in the solid-state image-pickup device, on the basis of the pieces of information on the accumulation period stored in the memory.
-
-
-
-
-
-
-
-
-
Search Results
18
records
(took 0.022 seconds)
