High-definition video encoding system having color-sensitive...

Details High-definition video encoding system having color-sensitive... High-definition video encoding system having color-sensitive...

H - Electricity

04

N

H04N 11/02 (2006.01) G06T 9/00 (2006.01) H04N 7/30 (2006.01) H04N 7/50 (2006.01) H04N 11/04 (2006.01)

Patent

CA 2100311

ABSTRACT A video signal encoder uses an encoding system such as that developed by the Moving Picture Experts Group (MPEG). A key component of this encoding system increases the quantization step size of image data, thus decreasing its quantization resolution, to reduce the number of bite used to encode the data. Apparatus according to the present invention, monitors the color information being encoded and inhibits or reduces any increase in quantization step size for the luminance component and the color component of the image when signals representing saturated or nearly saturated red image components are being encoded.

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