Title:
変換スキップモードとブロック差分パルスコード変調の改善された残差コーディング
Document Type and Number:
Japanese Patent JP7257535
Kind Code:
B2
Abstract:
A method of video decoding performed in a video decoder is provided. A bit stream including bins of syntax elements is received. The syntax elements correspond to coefficients of a region of a transform skipped block in a coded picture. The syntax elements include a first flag indicating whether an absolute coefficient level of one of the coefficients is greater than a first threshold value, and a second flag indicating a parity of the absolute coefficient level. The second flag is decoded in a pass. The pass satisfies at least one of: (1) no other syntax elements is decoded in the pass; (2) a third flag indicating whether the absolute coefficient level is greater than a second threshold value is decoded in the pass; and (3) a fourth flag indicating sign information of the coefficient level of the one of the coefficients is decoded in the pass.
Inventors:
Jiao, Shin
Li, cyan
Liu, Shan
Li, cyan
Liu, Shan
Application Number:
JP2021546711A
Publication Date:
April 13, 2023
Filing Date:
February 24, 2020
Export Citation:
Assignee:
Tencent America LLC
International Classes:
H04N19/70; H04N19/13; H04N19/176
Domestic Patent References:
| JP2015507424A |
Other References:
B. Bross, et al.,Non-CE8: Unified Transform Type Signalling and Residual Coding for Transform Skip, Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-M0464-v3,2019年01月13日
Heiko Schwarz, et al.,CE7: Summary report on quantization and coefficient coding,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-M0027-v1,2019年01月07日
Xiaozhong Xu, et al.,Description of Core Experiment 8 (CE8): Screen Content Coding Tools,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-M1028-v2,2019年02月09日
Mohsen Abdoli, et al.,CE8: BDPCM with horizontal/vertical predictor and independently decodable areas (test 8.3.1b),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-M0057,2018年12月30日
Heiko Schwarz, et al.,CE7: Summary report on quantization and coefficient coding,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-M0027-v1,2019年01月07日
Xiaozhong Xu, et al.,Description of Core Experiment 8 (CE8): Screen Content Coding Tools,Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-M1028-v2,2019年02月09日
Mohsen Abdoli, et al.,CE8: BDPCM with horizontal/vertical predictor and independently decodable areas (test 8.3.1b),Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11,JVET-M0057,2018年12月30日
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Osamu Miyazaki
Tadahiko Ito
Osamu Miyazaki