US 11,758,158 B2
Coding method and coding apparatus
Hisao Sasai, Osaka (JP); Takahiro Nishi, Nara (JP); Youji Shibahara, Osaka (JP); Toshiyasu Sugio, Osaka (JP); Kyoko Tanikawa, Osaka (JP); and Toru Matsunobu, Osaka (JP)
Assigned to SUN PATENT TRUST, New York, NY (US)
Filed by Sun Patent Trust, New York, NY (US)
Filed on Aug. 24, 2022, as Appl. No. 17/894,682.
Application 17/894,682 is a continuation of application No. 17/350,701, filed on Jun. 17, 2021, granted, now 11,457,225.
Application 17/350,701 is a continuation of application No. 16/232,517, filed on Dec. 26, 2018, granted, now 11,109,043, issued on Aug. 31, 2021.
Application 16/232,517 is a continuation of application No. 15/697,652, filed on Sep. 7, 2017, granted, now 10,200,696, issued on Feb. 5, 2019.
Application 15/697,652 is a continuation of application No. 14/709,967, filed on May 12, 2015, granted, now 9,794,578, issued on Oct. 17, 2017.
Application 14/709,967 is a continuation of application No. 13/530,306, filed on Jun. 22, 2012, granted, now 9,106,919, issued on Aug. 11, 2015.
Claims priority of provisional application 61/500,733, filed on Jun. 24, 2011.
Prior Publication US 2022/0408102 A1, Dec. 22, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/176 (2014.01); H04N 19/196 (2014.01); H04N 19/13 (2014.01); H04N 19/61 (2014.01); H04N 19/463 (2014.01); H04N 19/157 (2014.01); H04N 19/21 (2014.01); H04N 19/124 (2014.01); H04N 19/159 (2014.01); H04N 19/593 (2014.01)
CPC H04N 19/176 (2014.11) [H04N 19/124 (2014.11); H04N 19/13 (2014.11); H04N 19/157 (2014.11); H04N 19/159 (2014.11); H04N 19/196 (2014.11); H04N 19/21 (2014.11); H04N 19/463 (2014.11); H04N 19/593 (2014.11); H04N 19/61 (2014.11)] 3 Claims
OG exemplary drawing
 
1. A non-transitory computer-readable medium storing thereon a computer program for decoding a control parameter for controlling decoding of an image, the computer program being executed by a processor, causing the processor to perform operations including:
determining a context for a current block in the image, from among a plurality of contexts; and
performing arithmetic decoding on a bitstream corresponding to the current block, using the determined context to obtain the control parameter for the current block,
wherein the determining further includes:
determining a signal type under which the control parameter for the current block is classified;
determining the context by using both of decoded control parameters for a left block and an upper block, when the signal type is a first type, the left block being a neighboring block to the left of the current block, and the upper block being a neighboring block on top of the current block; and
determining the context by using a predetermined fixed value, without using any decoded control parameters for the left block and the upper block, when the signal type is a second type different from first type,
wherein a skip flag is classified under the first type, the skip flag indicating whether or not the current block is to be skipped, and
wherein a reference picture index is classified under the second type, the reference picture index indicating a reference picture used to predict the current block.