Title:
METHOD AND APPARATUS OF SCALING WINDOW CONSTRAINT FOR WORST CASE BANDWIDTH CONSIDERATION FOR REFERENCE PICTURE RESAMPLING IN VIDEO CODING
Document Type and Number:
WIPO Patent Application WO/2021/143413
Kind Code:
A1
Abstract:
Method and apparatus of coding a video sequence are disclosed, wherein Reference Picture Resampling (RPR) mode is included as a coding tool. According to the method, a bitstream corresponding to encoded data of the video sequence is generated or received, where the bitstream includes one or more syntaxes related to the RPR mode when the RPR mode is enabled, and scaling information for the RPR mode is derived using first information including said one or more syntaxes, and wherein said one or more syntaxes are constrained by taking into account a value corresponding to Max (8, (minimum coding block size for a luma component)). A target picture of the video sequence is encoded or decoded utilizing the scaling information when the RPR mode is enabled for the target picture.
Inventors:
CHUANG TZU-DER (CN)
CHEN CHING-YEH (CN)
CHEN CHING-YEH (CN)
Application Number:
PCT/CN2020/135802
Publication Date:
July 22, 2021
Filing Date:
December 11, 2020
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H04N19/70
Foreign References:
| CN105103560A | 2015-11-25 | |||
| CN103718551A | 2014-04-09 | |||
| US20140133580A1 | 2014-05-15 |
Other References:
S.-T. HSIANG, C.-Y. CHEN, T.-D. CHUANG, L. CHEN, Y.-W. HUANG, S.-M. LEI (MEDIATEK): "AHG9/AHG12: Modifications related to subpicture signalling and RPR", 17. JVET MEETING; 20200107 - 20200117; BRUSSELS; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 31 December 2019 (2019-12-31), XP030223066
HENDRY (FUTUREWEI), S. HONG (FUTUREWEI), Y.-K. WANG (FUTUREWEI), J. CHEN (FUTUREWEI), T.-S CHANG (ALIBABA-INC), Y.-C SUN (ALIBABA-: "AHG8: Support for reference picture resampling - handling of picture size signalling, conformance windows, and DPB management", 15. JVET MEETING; 20190703 - 20190712; GOTHENBURG; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 30 June 2019 (2019-06-30), XP030218708
B. CHOI (TENCENT), S. WENGER (STEWE), S. LIU (TENCENT): "AHG8: Signaling and filtering for Reference Picture Resampling (RPR)", 15. JVET MEETING; 20190703 - 20190712; GOTHENBURG; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 26 June 2019 (2019-06-26), XP030219280
See also references of EP 4088470A4
HENDRY (FUTUREWEI), S. HONG (FUTUREWEI), Y.-K. WANG (FUTUREWEI), J. CHEN (FUTUREWEI), T.-S CHANG (ALIBABA-INC), Y.-C SUN (ALIBABA-: "AHG8: Support for reference picture resampling - handling of picture size signalling, conformance windows, and DPB management", 15. JVET MEETING; 20190703 - 20190712; GOTHENBURG; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 30 June 2019 (2019-06-30), XP030218708
B. CHOI (TENCENT), S. WENGER (STEWE), S. LIU (TENCENT): "AHG8: Signaling and filtering for Reference Picture Resampling (RPR)", 15. JVET MEETING; 20190703 - 20190712; GOTHENBURG; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 26 June 2019 (2019-06-26), XP030219280
See also references of EP 4088470A4
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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