APPARATUS AND METHOD FOR ENCODING AND DECODING BAYER PATTERN IMAGES

Abstract: a video encoding apparatus for bayer pattern images is disclosed, comprising: a quantizer, a variable-length coder and a predictor. the quantizer is configured to perform quantization over a difference value d between an input pixel and a current predicted pixel to generate a quantized value � in a quantization sequence based on a quantization parameter q and the following equation: �=└(|d|+└q/2┘+1)�a/n┘. the variable-length coder is configured to count a number zr of consecutive zeros that either precede a following non-zero integer in the quantization sequence or are arranged in the end of the quantization sequence, to encode the number zr of consecutive zeros into a first codeword by a first codeword set, and to encode the following non-zero integer into a second codeword by a second codeword set to produce an encoded bitstream.

Inventor(s): CHUNG-YEN LU

CPC Classification: H04N19/42 (characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation ( takes precedence))

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