US 11,729,389 B2
Image decoding method, image coding method, image decoding apparatus, image coding apparatus, program, and integrated circuit
Hisao Sasai, Osaka (JP); Takahiro Nishi, Nara (JP); Youji Shibahara, Osaka (JP); Chong Soon Lim, Singapore (SG); Viktor Wahadaniah, Singapore (SG); Xuan Jing, Singapore (SG); and Sue Mon Thet Naing, Singapore (SG)
Assigned to SUN PATENT TRUST, New York, NY (US)
Filed by Sun Patent Trust, New York, NY (US)
Filed on Mar. 9, 2022, as Appl. No. 17/690,271.
Application 15/633,917 is a division of application No. 15/246,960, filed on Aug. 25, 2016, granted, now 9,743,087, issued on Aug. 22, 2017.
Application 15/246,960 is a division of application No. 13/818,702, granted, now 9,749,630, issued on Aug. 29, 2017, previously published as PCT/JP2011/005507, filed on Sep. 29, 2011.
Application 17/690,271 is a continuation of application No. 16/801,228, filed on Feb. 26, 2020, granted, now 11,310,500.
Application 16/801,228 is a continuation of application No. 16/019,705, filed on Jun. 27, 2018, granted, now 10,616,579, issued on Apr. 7, 2020.
Application 16/019,705 is a continuation of application No. 15/633,917, filed on Jun. 27, 2017, granted, now 10,038,905, issued on Jul. 31, 2018.
Claims priority of provisional application 61/388,221, filed on Sep. 30, 2010.
Prior Publication US 2022/0201303 A1, Jun. 23, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/124 (2014.01); H04N 19/147 (2014.01); H04N 19/176 (2014.01); H04N 19/70 (2014.01); H04N 19/119 (2014.01); H04N 19/46 (2014.01); H04N 19/61 (2014.01); H04N 19/12 (2014.01); H04N 19/44 (2014.01); H04N 19/42 (2014.01)
CPC H04N 19/124 (2014.11) [H04N 19/119 (2014.11); H04N 19/12 (2014.11); H04N 19/147 (2014.11); H04N 19/176 (2014.11); H04N 19/42 (2014.11); H04N 19/44 (2014.11); H04N 19/46 (2014.11); H04N 19/61 (2014.11); H04N 19/70 (2014.11)] 4 Claims
OG exemplary drawing
 
1. A decoding method comprising:
determining, using first information in a picture header of a picture and second information provided for a first block, whether or not a first quantization parameter to be used for decoding the first block is provided for a unit, the picture including the unit, the unit including the first block; and
decoding the first block,
wherein, when the first quantization parameter is determined to be provided, (i) the decoding includes deriving a value for dequantization by using the first quantization parameter and (ii) the first quantization parameter is used for other blocks included in the unit, and
wherein, when the first quantization parameter is determined not to be provided, the decoding includes deriving a value for dequantization by not using the first quantization parameter and by using a second quantization parameter which is provided for the first block.