復号化のための方法、装置及びコンピュータプログラム

Japanese Patent JP7068481

B2

A method of utilizing an 8-bit primary transform core matrix to decode compressed video or image data or encode uncompressed video or image data. The method may include determining whether to use a first transform core matrix that is of a first size type or a second transform core matrix that is of a second size type that is smaller than the first size type. When a result of the determination is to use the first transform core matrix, encoding or decoding the target file using the 8-bit primary transform core matrix that has the size that is 64-point or larger. If not, the method may include extracting the second transform core matrix of the second size type from the first transform matrix and encoding or decoding the target file using the extracted second transform core matrix.

Jiao, Shin
Li, cyan
Liu, Shan

JP2020544649A

May 16, 2022

June 03, 2019

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Tencent America LLC

H04N19/60; H04N19/70

US20180098081
US20160219290
US20130003856
US20120082212

Xin Zhao, Xiang Li, and Shan Liu,CE6-related: On 8-bit primary transform core,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-K0290-v1,11th Meeting: Ljubljana, SI,2018年07月,pp.1-4
Xin Zhao, Xiang Li, and Shan Liu,CE6: On 8-bit primary transform core (Test 6.1.3),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-L0285-r1,12th Meeting: Macao, CN,2018年10月,pp.1-17

Tadashige Ito
Tadahiko Ito
Osamu Miyazaki

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