Compression method and apparatus for single-sensor color imaging

Details Compression method and apparatus for single-sensor color imaging Compression method and apparatus for single-sensor color imaging

1989-07-24

1991-10-01

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 41, H04N 1104, H04N 904

Patent

active

050538616

ABSTRACT:
The method of the present invention operates upon the imaging signals from a color filter array image sensor to compress the image signals prior to color interpolation by separating the signals into three color planes. Missing green pixels are recovered through interpolation methods, either by bilinear or other techniques, in order to form color ratio signals log B/G.sub.missing and log R/G.sub.missing which allows for proper interpolation after decompression without color artifacts. Upon playback or reception, an inverse compression is applied and missing green, red and blue pixels are interpolated to provide three full planes of color image data.

REFERENCES:
patent: 4663661 (1987-05-01), Weldy et al.
patent: 4758883 (1988-07-01), Kawahara et al.
patent: 4774562 (1988-09-01), Chen et al.
patent: 4843573 (1989-06-01), Taylor et al.
patent: 4954879 (1990-09-01), Heckt

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