US 11,790,563 B2
Point cloud model reconstruction method, encoder, and decoder
Wei Zhang, Guangdong (CN); Fuzheng Yang, Guangdong (CN); Shuai Wan, Guangdong (CN); Yanzhuo Ma, Guangdong (CN); Junyan Huo, Guangdong (CN); Zexing Sun, Guangdong (CN); and Sujun Zhang, Guangdong (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Dec. 28, 2021, as Appl. No. 17/563,391.
Application 17/563,391 is a continuation of application No. PCT/CN2019/094288, filed on Jul. 1, 2019.
Prior Publication US 2022/0122296 A1, Apr. 21, 2022
Int. Cl. G06T 15/00 (2011.01); G06T 9/00 (2006.01); G06T 7/11 (2017.01); G06T 9/40 (2006.01); G06T 17/00 (2006.01)
CPC G06T 9/001 (2013.01) [G06T 7/11 (2017.01); G06T 9/40 (2013.01); G06T 17/00 (2013.01); G06T 2207/10028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A point cloud model reconstruction method, implemented in an encoder and comprising:
obtaining an i-th segmentation position of an i-th three-dimensional slice on a longest edge in a point cloud space, 1≤i≤n−1 and n being a total number of three-dimensional slices to-be-processed;
determining an i-th cube block set nearest to the i-th segmentation position in the i-th three-dimensional slice based on the i-th segmentation position and a preset cube block length;
determining, along the longest edge, an i-th vertex position with a cube block in the i-th cube block set, the i-th vertex position representing a position of a vertex on an edge which is away from a start position of the cube block by the preset cube block length; and
reconstructing a point cloud model based on the i-th vertex position.