Self-adaptive point cloud stripe division method

Abstract

A self-adaptive point cloud stripe division method. The method comprises: firstly, carrying out space division with a certain depth on a point cloud to obtain a plurality of local point clouds; then, counting the number of points in each of the local point clouds, comparing same with an upper and lower limit for the number of stripe points, and determining whether the number of points satisfies a requirement; and after a series of re-segmentation or re-fusion operations on the local point clouds, adjusting the number of points in each of the local point clouds until the number of points satisfies a range, thereby obtaining a final point cloud stripe. A plurality of local structures capable of being independently coded and decoded are obtained by means of division of a point cloud stripe, and this supports parallel processing, enhances system fault tolerance, and improves coding efficiency. Moreover, in consideration of the fact that the size of a point cloud stripe often has a limited range due to realistic factors of a large-scale point cloud, such as a limited transmission bandwidth, the method can satisfy such a requirement and make it possible to generate a plurality of point cloud stripes with a rational number of points while supporting parallel processing.