US 12,452,453 B2
Image processing device and method
Kao Hayashi, Kanagawa (JP); Satoru Kuma, Tokyo (JP); and Ohji Nakagami, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 18/029,789
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Sep. 24, 2021, PCT No. PCT/JP2021/034939
§ 371(c)(1), (2) Date Mar. 31, 2023,
PCT Pub. No. WO2022/075074, PCT Pub. Date Apr. 14, 2022.
Claims priority of application No. 2020-170070 (JP), filed on Oct. 7, 2020.
Prior Publication US 2023/0370637 A1, Nov. 16, 2023
Int. Cl. H04N 19/597 (2014.01); G06T 7/40 (2017.01); G06T 7/73 (2017.01); H04N 19/46 (2014.01)
CPC H04N 19/597 (2014.11) [G06T 7/40 (2013.01); G06T 7/74 (2017.01); H04N 19/46 (2014.11); G06T 2207/10016 (2013.01); G06T 2207/10028 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An image processing device comprising:
circuitry configured to
derive, from data of a three-dimensional object expressed using a set of points, first attribute data and second attribute data that respectively correspond to a first viewpoint and a second viewpoint different from each other and each correspond to a same geometry of the three-dimensional object,
generate a base patch and a difference patch based on the first attribute data and the second attribute data, wherein
the base patch corresponds to the first attribute data and does not refer to the difference patch, and
the difference patch corresponds to a difference between the first attribute data and the second attribute data,
derive a patch generation parameter for decoding the difference patch by referring to the first attribute data, and
encode the patch generation parameter and an attribute video frame including the base patch without encoding an attribute video frame including a patch indicating the second attribute.