Fluorescence diagnosis endoscope system
First Claim
1. A video processing unit for an endoscope, comprising:
- first and second image signal processing circuits, each of said image signal processing circuit being capable of receiving an image signal transmitted from an image receiving element of an endoscope, said first image signal processing circuit processing an image signal representing a color image, and said second image processing circuit processing an image signal representing a fluorescent image, wherein said second image signal processing circuit integrates a plurality of frames corresponding to light having a predetermined wavelength range to generate one frame of a video signal, said frame of said video signal having a brightness higher than a brightness corresponding to each of said image signals.
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Abstract
Provided is a fluorescence diagnosis endoscope system used to observe human tissue. The system has a light source for illuminating said tissue with a normal light and an excitation light having a certain wavelength range. The human tissue fluoresces in response to the illumination with the excitation light. The system further has a pair of image receiving elements for outputting image signals corresponding to received optical images, receptively. A filter which transmits only light produced by said fluoresced tissue is provided in front of one image receiving element. The image signals output by the image receiving elements are selectively processed and transmitted to a display.
137 Citations
7 Claims
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1. A video processing unit for an endoscope, comprising:
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first and second image signal processing circuits, each of said image signal processing circuit being capable of receiving an image signal transmitted from an image receiving element of an endoscope, said first image signal processing circuit processing an image signal representing a color image, and said second image processing circuit processing an image signal representing a fluorescent image, wherein said second image signal processing circuit integrates a plurality of frames corresponding to light having a predetermined wavelength range to generate one frame of a video signal, said frame of said video signal having a brightness higher than a brightness corresponding to each of said image signals. - View Dependent Claims (2, 3, 4, 5, 6, 7)
a manually operable switch; and
an image synthesis circuit, wherein said first image signal processing circuit outputs a frame of a color image video signal to said image synthesis circuit, said second image signal processing circuit outputs a frame of a fluorescent video signal to said image synthesis circuit, and said image synthesis circuit outputs at least one of said color image video signal and said fluorescence image video signal.
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Specification