Title:
ENCODING DEVICE, DECODING DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/206137
Kind Code:
A1
Abstract:
An encoding device that performs encoding for each block to be encoded, the encoding device comprising: a prediction unit that generates a prediction block corresponding to the block to be encoded for each component; a residual creation unit that creates a prediction residual representing a difference between the block to be encoded and the prediction block for each component; a color space conversion unit that performs color space conversion processing with respect to the prediction residual for each component; a conversion unit that generates a conversion coefficient by performing conversion processing with respect to the prediction residual; a quantization control unit that determines a scaling list to be used for quantization processing with respect to the conversion coefficient; and a quantization unit that performs the quantization processing with respect to the conversion coefficient using the determined scaling list, the quantization control unit determining the scaling list on the basis of the color space conversion processing.
Inventors:
IWAMURA SHUNSUKE (JP)
NEMOTO SHIMPEI (JP)
ICHIGAYA ATSURO (JP)
NEMOTO SHIMPEI (JP)
ICHIGAYA ATSURO (JP)
Application Number:
PCT/JP2021/014872
Publication Date:
October 14, 2021
Filing Date:
April 08, 2021
Export Citation:
Assignee:
JAPAN BROADCASTING CORP (JP)
International Classes:
H04N19/126; H04N19/70
Foreign References:
| JP2020070106A | 2020-05-07 |
Other References:
T. TSUKUBA (SONY), K. KONDO, M. IKEDA, Y. YAGASAKI, T. SUZUKI (SONY): "On QP Adjustment for Adaptive Color Transform", 17. JVET MEETING; 20200107 - 20200117; BRUSSELS; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 13 January 2020 (2020-01-13), XP030222573
A. K. RAMASUBRAMONIAN (QUALCOMM), G. VAN DER AUWERA (QUALCOMM), V. SEREGIN (QUALCOMM), H. E. EGILMEZ (QUALCOMM), M. KARCZEWICZ (QU: "AHG15: Scaling matrices for LFNST-coded blocks", 16. JVET MEETING; 20191001 - 20191011; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 11 October 2019 (2019-10-11), XP030217082
S. IWAMURA, S. NEMOTO, A. ICHIGAYA (NHK), P. DE LAGRANGE (INTERDIGITAL), F. LE LEANNEC, E. FRANCOIS (INTERDIGITAL): "[AHG15] On scaling list for JCCR", 16. JVET MEETING; 20191001 - 20191011; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 25 September 2019 (2019-09-25), XP030217836
See also references of EP 4087241A4
A. K. RAMASUBRAMONIAN (QUALCOMM), G. VAN DER AUWERA (QUALCOMM), V. SEREGIN (QUALCOMM), H. E. EGILMEZ (QUALCOMM), M. KARCZEWICZ (QU: "AHG15: Scaling matrices for LFNST-coded blocks", 16. JVET MEETING; 20191001 - 20191011; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 11 October 2019 (2019-10-11), XP030217082
S. IWAMURA, S. NEMOTO, A. ICHIGAYA (NHK), P. DE LAGRANGE (INTERDIGITAL), F. LE LEANNEC, E. FRANCOIS (INTERDIGITAL): "[AHG15] On scaling list for JCCR", 16. JVET MEETING; 20191001 - 20191011; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), 25 September 2019 (2019-09-25), XP030217836
See also references of EP 4087241A4
Attorney, Agent or Firm:
CURIUSE PATENT PROFESSIONAL CORPORATION (JP)
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