US 11,758,139 B2
Image processing device and method
Junichi Tanaka, Kanagawa (JP); Ohji Nakagami, Tokyo (JP); and Yoshitaka Morigami, Tokyo (JP)
Assigned to SONY CORPORATION, Tokyo (JP)
Filed by Sony Corporation, Tokyo (JP)
Filed on Mar. 24, 2021, as Appl. No. 17/211,177.
Application 17/211,177 is a continuation of application No. 16/706,832, filed on Dec. 9, 2019, abandoned.
Application 16/706,832 is a continuation of application No. 16/138,184, filed on Sep. 21, 2018, granted, now 10,560,697, issued on Feb. 11, 2020.
Application 16/138,184 is a continuation of application No. 15/687,082, filed on Aug. 25, 2017, granted, now 10,136,135, issued on Nov. 20, 2018.
Application 15/687,082 is a continuation of application No. 15/429,866, filed on Feb. 10, 2017, granted, now 9,781,422, issued on Oct. 3, 2017.
Application 15/429,866 is a continuation of application No. 14/359,765, granted, now 9,635,354, issued on Apr. 25, 2017, previously published as PCT/JP2012/081057, filed on Nov. 30, 2012.
Claims priority of application No. 2011-277745 (JP), filed on Dec. 19, 2011; application No. 2012-008462 (JP), filed on Jan. 18, 2012; and application No. 2012-039216 (JP), filed on Feb. 24, 2012.
Prior Publication US 2021/0211670 A1, Jul. 8, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/126 (2014.01); H04N 19/59 (2014.01); H04N 19/463 (2014.01); H04N 19/70 (2014.01); H04N 19/597 (2014.01); H04N 19/30 (2014.01); H04N 19/593 (2014.01); H04N 19/103 (2014.01); H04N 19/107 (2014.01); H04N 19/176 (2014.01); H04N 19/18 (2014.01); H04N 19/184 (2014.01)
CPC H04N 19/126 (2014.11) [H04N 19/103 (2014.11); H04N 19/107 (2014.11); H04N 19/176 (2014.11); H04N 19/18 (2014.11); H04N 19/184 (2014.11); H04N 19/30 (2014.11); H04N 19/463 (2014.11); H04N 19/59 (2014.11); H04N 19/593 (2014.11); H04N 19/597 (2014.11); H04N 19/70 (2014.11)] 4 Claims
OG exemplary drawing
 
1. An image processing device, comprising:
a memory; and
processing circuitry configured to
set a 16×16 quantization matrix corresponding to a 16×16 transform unit by performing a nearest neighbor interpolation process in which each element of a first 8×8 quantization matrix is copied as a value for its 3 neighboring elements in a case where the 16×16 transform unit is selected when image data is to be orthogonally transformed and set a 32×32 quantization matrix, which corresponds to a 32×32 transform unit, by performing a nearest neighbor interpolation process in which each element of a second 8×8 quantization matrix is copied as a value for its 15 neighboring elements in a case where the 32×32 transform unit is selected when the image data is to be orthogonally transformed;
quantize transform coefficient data generated by orthogonally transforming the image data in 16×16 transform units using the 16×16 quantization matrix and quantize coefficient data generated by orthogonally transforming the image data in 32×32 transform units using the 32×32 quantization matrix to generate quantized data; and
encode the quantized data to generate a bitstream which includes the first 8×8 quantization matrix and the second 8×8 quantization matrix.