Image correction method and apparatus with partial detector arra

Details Image correction method and apparatus with partial detector arra Image correction method and apparatus with partial detector arra

1987-06-09

1989-02-21

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

358293, H01J 4014

Patent

active

048067806

ABSTRACT:
A method and apparatus for performing a shading correction of image signals picked up by an optical detector array in which the period of x image signals can be prolonged by sampling of the image signal after reading reference signals and the speed of line memories can be reduced when carrying out an accumulative addition of picture elements, thereby enabling the use of low speed line memories.

REFERENCES:
patent: 4567529 (1986-01-01), Yamaguchi et al.
patent: 4584607 (1986-04-01), Miyazawa
T. R. Little, "Real Time Digital Correction of Acquisition Errors Applied to Solid State Scanners", SPIE, Application of Digital Image Processing, vol. 119, pp. 172-181, 1977.

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