Patent ID: 11954813
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method for constructing a three-dimensional scene, comprising:
acquiring point cloud data of a key object and a background object in a target scene, wherein the point cloud data of the key object comprises three-dimensional information and corresponding feature information, and the point cloud data of the background object at least comprises three-dimensional information; establishing a feature database of the target scene, wherein the feature database at least comprises a key object feature library for recording three-dimensional information and feature information of the key object;
performing registration and fusion on the point cloud data of the key object and the point cloud data of the background object, so as to obtain a three-dimensional model of the target scene; and
when updating the three-dimensional model, reconstructing the three-dimensional model according to the feature database,
wherein the feature database further comprises an edge region feature library and a mask region feature library;
after performing registration and fusion on the point cloud data of the key object and the point cloud data of the background object, the method further comprises:
determining a peripheral edge region of the key object, acquiring three-dimensional information and feature information of the peripheral edge region, and storing the three-dimensional information of the peripheral edge region, corresponding feature information of the peripheral edge region, and the key object corresponding to the peripheral edge region in the edge region feature library;
estimating three-dimensional information and feature information of a mask region shielded by the key object based on the edge region feature library, storing three-dimensional information of a mask region, corresponding feature information of the mask region, and the key object corresponding to the mask region in the mask region feature library; and
updating the three-dimensional model of the target scene based on the mask region feature library.