Coding of the significant coefficient information in conversion skip mode

Japanese Patent JP6009575

B2

This disclosure describes techniques for coding significant coefficient information for a video block in a transform skip mode. The transform skip mode may provide a choice of a two-dimensional transform mode, a horizontal one-dimensional transform mode, a vertical one-dimensional transform mode, or a no transform mode. In other cases, the transform skip mode may provide a choice between a two- dimensional transform mode and a no transform mode. The techniques include selecting a transform skip mode for a video block, and coding significant coefficient information for the video block using a coding procedure defined based at least in part on the selected transform skip mode. Specifically, the techniques include using different coding procedures to code one or more of a position of a last non-zero coefficient and a significance map for the video block in the transform skip mode.

Joshi, Rajan Luxman
Sol Rojars, Joel
One, Shanlin
Kirk Zewicks, Malta
Serezin, Badim

JP2014541180A

October 19, 2016

November 07, 2012

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QUALCOMM INCORPORATED

H04N19/103; H04N19/12; H04N19/129; H04N19/13; H04N19/157; H04N19/18; H04N19/625

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Kurata Masatoshi
Yoshihiro Fukuhara
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi

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