Title:
ビデオコーディングにおける非正方ブロックのためのコンテキスト適応型エントロピーコーディング
Document Type and Number:
Japanese Patent JP5869114
Kind Code:
B2
Abstract:
Disclosed are techniques for coding coefficients of a video block having a non-square shape defined by a width and a height, comprising coding one or more of x- and y-coordinates that indicate a position of a last non-zero coefficient within the block according to an associated scanning order, including coding each coordinate by determining one or more contexts used to code the coordinate based on one of the width and the height that corresponds to the coordinate, and coding the coordinate by performing a context adaptive entropy coding process based on the contexts. Also disclosed are techniques for coding information that identifies positions of non-zero coefficients within the block, including determining one or more contexts used to code the information based on one or more of the width and the height, and coding the information by performing a context adaptive entropy coding process based on the contexts.
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Inventors:
Sol Rojars, Joel
Joshi, Rajan Luxman
Kirk Zewicks, Malta
Joshi, Rajan Luxman
Kirk Zewicks, Malta
Application Number:
JP2014519147A
Publication Date:
February 24, 2016
Filing Date:
June 29, 2012
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04N19/13; H04N19/157; H04N19/176; H04N19/91
Other References:
J. Sole et al.,CE11: Parallel Context Processing for the significance map in high coding efficiency,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11,5th Meeting: Geneva, CH,2011年 3月,JCTVC-E338,pp.1-5
Xiaoran Cao et al.,CE6.b1 Report on Short Distance Intra Prediction Method, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11,5th Meeting: Geneva,2011年 3月,JCTVC-E278,pp.1-7
Geert Van der Auwera et al.,CE6.b: SDIP Harmonization with Deblocking, MDIS and HE Residual Coding,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11,6th Meeting: Torino,2011年 7月,JCTVC-F556-v2,pp.1-22
Xiaoran Cao et al.,CE6.b1 Report on Short Distance Intra Prediction Method, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11,5th Meeting: Geneva,2011年 3月,JCTVC-E278,pp.1-7
Geert Van der Auwera et al.,CE6.b: SDIP Harmonization with Deblocking, MDIS and HE Residual Coding,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11,6th Meeting: Torino,2011年 7月,JCTVC-F556-v2,pp.1-22
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Takao Ako
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Yoshihiro Fukuhara
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Takao Ako
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi