公开(公告)号：US20230334819A1

公开(公告)日：2023-10-19

申请号：US18213073

申请日：2023-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongning HAO ,  Guotao SHEN ,  Xiaoli ZHU ,  Qiang HUANG ,  Longhai WU ,  Jie CHEN

IPC: G06V10/60 ,  G06V10/75 ,  G06T7/70

CPC classification number: G06V10/60 ,  G06V10/757 ,  G06T7/70

Abstract: An illuminant estimation method, including acquiring two image frames, wherein a distance between the two image frames is greater than a predetermined distance; detecting shadows included in the two image frames, extracting pixel feature points corresponding to the shadows, determining point cloud information about the shadows, and distinguishing a point cloud of each shadow based on the point cloud information about the shadows; acquiring point cloud information about multiple objects, and distinguishing a point cloud of each object based on the point cloud information corresponding to the multiple objects; matching the point cloud of the each shadow and the point cloud of the each object in order to determine corresponding shadows associated with the multiple objects; and determining a position of an illuminant according to a positional relation between the multiple objects and the corresponding shadows.