Endoscope with image correction means

Details Endoscope with image correction means Endoscope with image correction means

1982-07-06

1984-11-06

Coven, Edward M.

Surgery

Truss

Perineal

358 98, A61B 106

Patent

active

044806361

ABSTRACT:
In an endoscope for displaying an image of an object on a monitor screen, a static induction transistor (SIT) image sensor having a number of light receiving elements is arranged at a light emitting side of an image guide bundle. In order to eliminate dead spots appearing in the displayed image due to broken fibers in the image guide bundle, pixel signals of light receiving elements corresponding to the dead spots are formed by interpolation with the aid of pixel signals derived from light receiving elements adjacent to the relevant light receiving elements to be interpolated. As an interpolation function, for example, an average of the pixel signals derived from the adjacent light receiving elements is used. The addresses of the light receiving elements corresponding to the dead spots are stored previously in a PROM during a manufacturing stage. In this manner, the interpolated image of the object having an excellent image quality can be displayed on the monitor.

REFERENCES:
patent: 4237488 (1980-12-01), Takemura
patent: 4253120 (1981-02-01), Levine
patent: 4253447 (1981-03-01), Moore et al.
patent: 4300163 (1981-11-01), Wada et al.
patent: 4340909 (1982-07-01), Yamada et al.
patent: 4344091 (1982-08-01), Gardner et al.

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