Electronic endoscope

Details Electronic endoscope Electronic endoscope

1990-02-13

1992-05-12

Pellegrino, Stephen C.

Surgery

Truss

Perineal

358 98, A61B 104, H04N 1100

Patent

active

051118041

ABSTRACT:
An electronic endoscope including a scope having an image pickup device, such as a CCD, for picking up color image signls of an object to be observed, and a light source unit for outputting to the scope either a continuous DC light in a moving image pickup operation or a pulsed light in a still image pickup operation for illuminating the object. A color separation circuit calculates white balance factors for primary colors, a multiplier calculates color correction factors for the primary colors, a multiplier carries out a white balance operation of the color image signals by multiplying the white balance factors thereto, and an image memory carries out a color correction operation of the color image signals by multiplying the color correction factors thereto in the still image pickup operation.

REFERENCES:
patent: 4562831 (1986-01-01), Murakoshi et al.
patent: 4766489 (1988-08-01), Kato
patent: 4799104 (1989-01-01), Hosoya et al.
patent: 4819077 (1989-04-01), Kikuchi et al.
patent: 4831437 (1989-05-01), Nishioka et al.
patent: 4891696 (1990-01-01), Miyazaki et al.
patent: 5007407 (1991-04-01), Kikuchi

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