Electronic endoscope system
AssigneeHoya Corporation
InventorsMitsufumi Fukuyama, Go Matsui
Life of this patent
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Abstract
An electronic endoscope system comprises a video-scope, an imaging device, and a black balance processor. The imaging device, which is provided on the video-scope, is exposed at a normal shutter speed so as to generate an image signal corresponding to an optical image that is formed thereon. The black balance processor generates a black balance value for adjusting the black balance of the image signal, based on a black image signal corresponding to a black image. The black image signal is generated by exposing the imaging device at a high shutter speed that is faster than the normal shutter speed.
Claims19
An electronic endoscope system, comprising:
- a video-scope;
- an imaging device that is provided on said video-scope, and that is exposed at a normal shutter speed so as to generate an image signal corresponding to an optical image that is formed on the imaging device
- an illumination apparatus that illuminates a light from said video-scope onto an object, wherein said imaging device is exposed at said normal shutter speed so as to generate said image signal while said light is illuminated by said illumination apparatus, and said optical image is formed from said light reflected from the object, and
- a black balance processor that generates a black balance value for adjusting the black balance of said image signal based on a black image signal corresponding to a black image, said black image signal being generated by exposing said imaging device at a high shutter speed that is faster than said normal shutter speed,
- wherein said imaging device is exposed at said high shutter speed so as to generate said black image signal while said light is not illuminated by said illuminating apparatus.
An electronic endoscope system, comprising:
- a video-scope;
- an imaging device that is provided on said video-scope, and that is exposed at a normal shutter speed so as to generate an image signal corresponding to an optical image that is formed on the imaging device;
- and
- a black balance processor that generates a black balance value for adjusting the black balance of said image signal based on a black image signal corresponding to a black image, said black image signal being generated by exposing said imaging device at a high shutter speed that is faster than said normal shutter speed,
- wherein said black balance processor generates said black balance value based on said black image signal corresponding to a partial area of said black image, and
- wherein said black balance processor generates said black balance value based on said partial area having the lowest luminance value of a plurality of partial areas in said black image.
Dependencies are inferred from the claim text.