Transformation coding device

Details Transformation coding device Transformation coding device

H - Electricity

03

M

354/68

H03M 7/00 (2006.01) G06T 9/00 (2006.01) H04N 7/26 (2006.01) H04N 7/30 (2006.01) H04N 7/50 (2006.01)

Patent

CA 2017384

ABSTRACT OF THE DISCLOSURE Disclosed is a transformation coding device which applies high efficient coding to a digital image signal, and in which a plurality of quantization characteristics are prepared and one quantization characteristic is adaptively selected in accordance with a predicted distortion for an input signal and a sequence of transformation coefficients, thereby allowing the quantization in accordance with statistical properties of an input signal to be implemented, and at the same time, allowing a signal to be efficiently compressed.

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