US 12,149,695 B2
Image coding method, image decoding method, image coding apparatus, image decoding apparatus, and image coding and decoding apparatus
Hisao Sasai, Kanagawa (JP); Takahiro Nishi, Nara (JP); Youji Shibahara, Osaka (JP); and Toshiyasu Sugio, Osaka (JP)
Assigned to SUN PATENT TRUST, New York, NY (US)
Filed by Sun Patent Trust, New York, NY (US)
Filed on Aug. 9, 2023, as Appl. No. 18/232,045.
Application 18/232,045 is a continuation of application No. 17/733,257, filed on Apr. 29, 2022, granted, now 11,770,536.
Application 17/733,257 is a continuation of application No. 16/822,816, filed on Mar. 18, 2020, granted, now 11,350,096, issued on May 31, 2022.
Application 16/822,816 is a continuation of application No. 15/995,654, filed on Jun. 1, 2018, granted, now 10,638,134, issued on Apr. 28, 2020.
Application 15/995,654 is a continuation of application No. 15/498,774, filed on Apr. 27, 2017, granted, now 10,015,494, issued on Jul. 3, 2018.
Application 15/498,774 is a continuation of application No. 14/951,893, filed on Nov. 25, 2015, granted, now 9,681,137, issued on Jun. 13, 2017.
Application 14/951,893 is a continuation of application No. 14/271,930, filed on May 7, 2014, granted, now 9,258,558, issued on Feb. 9, 2016.
Application 14/271,930 is a continuation of application No. 13/348,041, filed on Jan. 11, 2012, granted, now 8,755,620, issued on Jun. 17, 2014.
Claims priority of provisional application 61/431,912, filed on Jan. 12, 2011.
Prior Publication US 2023/0388506 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/00 (2014.01); H03M 7/40 (2006.01); H04N 19/119 (2014.01); H04N 19/122 (2014.01); H04N 19/124 (2014.01); H04N 19/13 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/52 (2014.01); H04N 19/61 (2014.01); H04N 19/91 (2014.01); H04N 19/136 (2014.01); H04N 19/157 (2014.01)
CPC H04N 19/13 (2014.11) [H03M 7/4018 (2013.01); H04N 19/119 (2014.11); H04N 19/122 (2014.11); H04N 19/124 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/52 (2014.11); H04N 19/61 (2014.11); H04N 19/91 (2014.11); H04N 19/136 (2014.11); H04N 19/157 (2014.11)] 3 Claims
OG exemplary drawing
 
1. A non-transitory computer-readable recording medium having recorded thereon a computer program that causes a computer to execute a method comprising:
obtaining a current signal to be decoded of a current processing unit of a coded image;
selecting a context for the current signal to be decoded from among a plurality of contexts; and
performing arithmetic decoding of the current signal to be decoded by using the selected context,
wherein, in said selecting, a shared context is selected as the context for the current signal to be decoded in the case where a size of the processing unit which includes the current signal to be decoded is a block size of 16×16, and in the case where the size of the processing unit which includes the current signal to be decoded is a block size of 32×32, and
wherein, in said selecting, a dedicated context is selected as the context for the current signal to be decoded in the case where the size of the processing unit which includes the current signal to be decoded is smaller than the block size of 16×16.