Title:
ENCODING AND DECODING METHOD, APPARATUS AND COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/063270
Kind Code:
A1
Abstract:
The present disclosure relates to method for predicting an image. The method include (i) determining prediction parameters of a current block in a bitstream; (ii) determining a matrix-based intra prediction (MIP) input sample of the current block based on neighboring samples of the current block and the prediction parameters; (iii) setting a shifting number parameter (sW) as a first fixed value; (iv) setting a shifting offset parameter (fO) as a second fixed value; and (v) determining an MIP prediction sample of the current block based on an MIP weighting matrix, the MIP input sample, the shifting offset parameter (fO), and the shifting number parameter (sW).
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Inventors:
HUO JUNYAN (CN)
Application Number:
PCT/CN2020/117911
Publication Date:
April 08, 2021
Filing Date:
September 25, 2020
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H04N19/61; H04N19/70
Domestic Patent References:
| WO2018134128A1 | 2018-07-26 | |||
| WO2019172676A1 | 2019-09-12 |
Foreign References:
| CN109076221A | 2018-12-21 | |||
| CN109076243A | 2018-12-21 |
Other References:
K. KONDO (SONY), M. IKEDA (SONY), T. SUZUKI (SONY): "On constant shift and offset in MIP", 17. JVET MEETING; 20200107 - 20200117; BRUSSELS; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. m51750, 29 December 2019 (2019-12-29), XP030222729
J.-Y. HUO, H.-X. WANG, Y. SUN, Y.-Z. MA, F.-Z. YANG (XIDIAN UNIV.), S. WAN (NPU), Y.-F. YU (OPPO), Y. LIU (OPPO): "On fixed sW and fO in MIP", 17. JVET MEETING; 20200107 - 20200117; BRUSSELS; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. m52046, 31 December 2019 (2019-12-31), XP030223547
J. PFAFF (FRAUNHOFER), B. STALLENBERGER, M. SCHÄFER, P. MERKLE, P. HELLE, T. HINZ, H. SCHWARZ, D. MARPE, T. WIEGAND (HHI), K. KOND: "MIP with constant shifts and offsets", 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), XP030223537
K. KONDO (SONY), J.-Y. HUO (XIDIAN UNIV.): "CE3-2: On rounding shift of MIP", 16. JVET MEETING; 20191001 - 20191011; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 18 September 2019 (2019-09-18), XP030216081
J.-Y. HUO, H.-X. WANG, Y. SUN, Y.-Z. MA, F.-Z. YANG (XIDIAN UNIV.), S. WAN (NPU), Y.-F. YU (OPPO), Y. LIU (OPPO): "Non-CE3: MIP simplification", 16. JVET MEETING; 20191001 - 20191011; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 24 September 2019 (2019-09-24), XP030216335
KONDO (SONY) K ET AL.: "CE3-2: On-rounding shift of MIP", JVET OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16, NO. JVET-P0056, 18 September 2019 (2019-09-18)
BIATEK (QUALCOMM) T ET AL.: "Non-CE3: simplified MIP with power-of-two offsets", JVET OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16, NO. JVET-PO625, 2 October 2019 (2019-10-02)
See also references of EP 3827591A4
J.-Y. HUO, H.-X. WANG, Y. SUN, Y.-Z. MA, F.-Z. YANG (XIDIAN UNIV.), S. WAN (NPU), Y.-F. YU (OPPO), Y. LIU (OPPO): "On fixed sW and fO in MIP", 17. JVET MEETING; 20200107 - 20200117; BRUSSELS; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. m52046, 31 December 2019 (2019-12-31), XP030223547
J. PFAFF (FRAUNHOFER), B. STALLENBERGER, M. SCHÄFER, P. MERKLE, P. HELLE, T. HINZ, H. SCHWARZ, D. MARPE, T. WIEGAND (HHI), K. KOND: "MIP with constant shifts and offsets", 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), XP030223537
K. KONDO (SONY), J.-Y. HUO (XIDIAN UNIV.): "CE3-2: On rounding shift of MIP", 16. JVET MEETING; 20191001 - 20191011; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 18 September 2019 (2019-09-18), XP030216081
J.-Y. HUO, H.-X. WANG, Y. SUN, Y.-Z. MA, F.-Z. YANG (XIDIAN UNIV.), S. WAN (NPU), Y.-F. YU (OPPO), Y. LIU (OPPO): "Non-CE3: MIP simplification", 16. JVET MEETING; 20191001 - 20191011; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 24 September 2019 (2019-09-24), XP030216335
KONDO (SONY) K ET AL.: "CE3-2: On-rounding shift of MIP", JVET OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16, NO. JVET-P0056, 18 September 2019 (2019-09-18)
BIATEK (QUALCOMM) T ET AL.: "Non-CE3: simplified MIP with power-of-two offsets", JVET OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16, NO. JVET-PO625, 2 October 2019 (2019-10-02)
See also references of EP 3827591A4
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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