CODING DEVICE, CODING METHOD, DECODING DEVICE AND DECODING METHOD

WIPO Patent Application WO/2019/013235

A1

A coding device (100) for coding a block to be coded of a picture is provided with a circuit and a memory, wherein the circuit generates a first transformation coefficient using the memory by performing a first transformation on a residual signal of the block to be coded using a first transformation base, generates a second transformation coefficient by performing a second transformation on the first transformation coefficient using a second transformation base when the first transformation base matches a predetermined transformation base, quantizes the second transformation coefficient, and quantizes the first transformation coefficient without performing the second transformation when the first transformation base differs from the predetermined transformation base.

OHKAWA MASATO (JP)
SAITOU HIDEO
TOMA TADAMASA
NISHI TAKAHIRO
ABE KIYOFUMI
KANOH RYUICHI

PCT/JP2018/026113

January 17, 2019

July 11, 2018

Click for automatic bibliography generation  

PANASONIC IP CORP AMERICA (US)

H04N19/124

WO2011016249A1

2011-02-10

TSUKUBA, TAKESHI ET AL.: "EE 2. 7-related: On secondary transform when primary transform is skipped", JVET- C0045_RL, 25 May 2016 (2016-05-25), pages 1 - 6, XP030150139, Retrieved from the Internet
SAXENA, ANKUR ET AL.: "On secondary transforms for Intra_BL residue", JCT-VC OF ITU-T SG16 WP3 AND ISO/IEC JTCI/SC29/WG11, no. m28433, 22 April 2013 (2013-04-22), pages 1 - 12, XP030056966
See also references of EP 3637767A4

TOKUDA Yoshiaki et al. (JP)

View/Download PDF      PDF Help

Previous Patent: SOLID PREPARATION COMPRISING VITAMIN B1 OR DERIVATIVE THEREOF

Next Patent: CODING DEVICE, CODING METHOD, DECODING DEVICE AND DECODING METHOD