US 11,704,839 B2
Multiview video encoding and decoding method
Soo Woong Kim, Sejong-si (KR); Jung Won Kang, Daejeon (KR); Gun Bang, Daejeon (KR); Jin Ho Lee, Daejeon (KR); Ha Hyun Lee, Seoul (KR); and Sung Chang Lim, Daejeon (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed on Dec. 16, 2020, as Appl. No. 17/124,226.
Claims priority of application No. 10-2019-0168783 (KR), filed on Dec. 17, 2019; application No. 10-2019-0179057 (KR), filed on Dec. 31, 2019; and application No. 10-2020-0176820 (KR), filed on Dec. 16, 2020.
Prior Publication US 2021/0233282 A1, Jul. 29, 2021
Int. Cl. G06T 9/00 (2006.01); G06T 15/20 (2011.01); G06T 15/04 (2011.01); G06T 17/20 (2006.01)
CPC G06T 9/001 (2013.01) [G06T 15/04 (2013.01); G06T 15/205 (2013.01); G06T 17/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A multi-view image decoding method, the method comprising:
obtaining, from a bitstream, three-dimensional geometry information indicating a three-dimensional space of a multi-view image, view independent component information indicating a view independent component, which is uniformly applied to every view, and view dependent component information indicating a view dependent component, which is differently applied according to views;
determining the view dependent component for a texture map of a current view from the view dependent component information;
generating the texture map of the current view from the view independent component of the view independent component information and the determined view dependent component for the current view; and
reconstructing a current view image according to the texture map of the current view and the three-dimensional space that is constructed according to the three-dimensional geometry information,
wherein the three-dimensional space is defined by a triangular mesh structure in the unit of voxels, the triangular mesh structure for each voxel set as one among a plurality of pre-determined triangular mesh structure pattern candidates,
wherein the three-dimensional geometry information is index information for indicating the triangular mesh structure for each voxel from among the plurality of pre-determined triangular mesh structure pattern candidates, and
at least some of the plurality of pre-determined triangular mesh structure pattern candidates are defined at least based on preset UV locations.