Title:
ENCODING DEVICE, DECODING DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/215454
Kind Code:
A1
Abstract:
This encoding device performs encoding on a per-block-to-be-encoded basis and comprises: a prediction unit that generates, on a per-component basis, a prediction block which corresponds to the block to be encoded; a residual generation unit that generates, on a per–component basis, a prediction residual which indicates the difference between the block to be encoded and the prediction block; a color space conversion unit that subjects the prediction residual for each component to a color space conversion process; a conversion unit that subjects the prediction residual to a conversion process so as to generate a conversion coefficient; a quantization control unit that determines a scaling list for use in a quantization process of the conversion coefficient; and a quantization unit that uses the determined scaling list to subject the conversion coefficient to the quantization process, wherein the quantization control unit determines the scaling list on the basis of the color space conversion process.
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Inventors:
IWAMURA SHUNSUKE (JP)
NEMOTO SHIMPEI (JP)
ICHIGAYA ATSURO (JP)
NEMOTO SHIMPEI (JP)
ICHIGAYA ATSURO (JP)
Application Number:
PCT/JP2021/016100
Publication Date:
October 28, 2021
Filing Date:
April 20, 2021
Export Citation:
Assignee:
JAPAN BROADCASTING CORP (JP)
International Classes:
H04N19/126; H04N19/70
Other References:
S. IWAMURA, S. NEMOTO, A. ICHIGAYA (NHK), K. NASER (INTERDIGITAL), P. DE LAGRANGE, F. LE LEANNEC, P. BORDES (INTERDIGITAL): "Scaling list for adaptive colour transform", 130. MPEG MEETING; 20200420 - 20200424; ALPBACH; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), no. m53563 ; JVET-R0380, 15 April 2020 (2020-04-15), XP030287187
Attorney, Agent or Firm:
CURIUSE PATENT PROFESSIONAL CORPORATION (JP)
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