Title:
変換係数ブロック・コーディング
Document Type and Number:
Japanese Patent JP7219775
Kind Code:
B2
Abstract:
A video encoder is configured to entropy encode an absolute value of a quantization level of a current transform coefficient at position (xC, yC), wherein the absolute value is encoded using context adaptive binary arithmetic encoding of bins of a first binarization. The video coder is further configured, for the current transform coefficient, to encode a bin of the first binarization by using a context which is determined based on a sum of minimum absolute values of transform coefficient quantization levels, based on encoded bins of the first binarization, at one or more transform coefficient positions among (xC+1, yC), (xC+2, yC), (xC+1, yC+1), (xC, yC+1), and (xC, yC+2).
Inventors:
Hase, Paul
Rudat, Christian
Kirchhofer, Hainer
Nguyen, Phan Hoang Thanh
Seekman, Mischa
Schwartz, Heiko
Marpe, Detrev
Wiegand, Thomas
Rudat, Christian
Kirchhofer, Hainer
Nguyen, Phan Hoang Thanh
Seekman, Mischa
Schwartz, Heiko
Marpe, Detrev
Wiegand, Thomas
Application Number:
JP2020552882A
Publication Date:
February 08, 2023
Filing Date:
March 28, 2019
Export Citation:
Assignee:
Fraunhofer Gesar Shaft Tool Ferderunk Da Angevanten Forschenck A. Fao.
International Classes:
H04N19/13; H04N19/124; H04N19/157; H04N19/186
Foreign References:
| WO2016196369A1 | ||||
| WO2013107908A1 | ||||
| US20150010055 | ||||
| US20130195199 |
Attorney, Agent or Firm:
Patent Attorney Corporation Washida International Patent Office
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