Solid-state image sensing device for endoscope and endoscope ima

Details Solid-state image sensing device for endoscope and endoscope ima Solid-state image sensing device for endoscope and endoscope ima

1995-07-07

1997-02-18

Au, Amelia

Television

Special applications

With endoscope

348 71, H04N 718

Patent

active

056045301

ABSTRACT:
A solid-state image sensing device for endoscopes including a color mosaic filter provided on a CCD image pick-up surface and having filters arranged so that the number of G-component pixels.gtoreq.the number of B-component pixels>the number of R-component pixels, the number of CCD pixels being set at a minimum requisite level in accordance with the information-amount characteristics of the endoscopic image to be picked up. A plurality of LPFs are provided in a signal processing section providing image signal resolution in which the G-component bandwidth.gtoreq.B-component bandwidth>R-component bandwidth, thereby obtaining an image-signal resolution which is high enough to allow the endoscopic image to be displayed, with the B-component being equal to or smaller than the G-component and larger than the R-component.

REFERENCES:
patent: 4845553 (1989-07-01), Kohomura et al.
patent: 4878113 (1989-10-01), Nakamura

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