METHOD AND APPARATUS, AND VIDEO CODING/DECODING PROGRAMME Russian patent published in 2011 - IPC H04N7/46

Abstract RU 2414093 C2

FIELD: information technology.

SUBSTANCE: invention discloses a method of coding video for dequantisation of the conversion coefficient using a conversion coefficient quantisation matrix which corresponds to each frequency position, involving the following steps: forming a quantisation matrix using a function for forming a quantisation matrix and a formation parametre; quantisation of the conversion coefficient using the formed quantisation matrix and a step for quantisation of the conversion coefficient in order to generate a code signal.

EFFECT: high coding efficiency and fewer coding bits for coding the quantisation matrix.

13 cl, 25 dwg

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RU 2 414 093 C2

Authors

Tanizava Akijuki

Tudzokh Takesi

Dates

2011-03-10—Published

2006-10-19—Filed