Geometric texture synthesis method and system based on GPU (Graphics Processing Unit) acceleration

Abstract

The invention relates to a geometric texture synthesis method and system based on GPU (Graphics Processing Unit) acceleration. The method comprises the following steps of performing gridding processing on a sample geometric texture M<in> and an output geometric texture M<out>; determining a region on which the geometric textures are to be synthesized; finding optimal matching geometric sub-blocks m<out> from the sample geometric texture M<in> through a GPU parallel processing method; performing geometric alignment on a matching region P<out> and an overlapping region shown in the description through the GPU parallel processing method; performing geometric deformation on the matching region P<out> and the overlapping region shown in the description through the GPU parallel processing method; and performing geometric combination on the matching region P<out> and the overlapping region shown in the description which are subjected to the geometric deformation. According to the geometric texture synthesis method and system, the sample geometric texture is subjected to geometric sub-block subdivision, and the geometric sub-blocks are taken as basic synthesis units, so that the quality of a synthesis result is enhanced. The GPU parallel processing method is adopted, so that the calculation complexity in finding of the optimal matching geometric sub-blocks and splicing of the geometric sub-blocks is lowered, and the geometric texture synthesis speed is increased.

Description

technical field [0001] The invention relates to the field of texture synthesis, in particular to a GPU-accelerated geometric texture synthesis method and system. Background technique [0002] Texture synthesis and texture mapping are the main technologies of computer virtual reality. It can simulate the color details or geometric details of the surface of objects without increasing the complexity of scene rendering or significantly increasing the amount of calculation, thereby greatly improving the realism of the scene. Two-dimensional texture synthesis uses image texture to represent the surface details of objects. This method can achieve faster synthesis speed and less memory usage. However, 2D texture synthesis does not support important effects such as occlusion, shadows, and contours. Therefore, in recent years, researchers have proposed to use geometric texture instead of image texture to represent the surface details of objects, so as to further improve the accuracy ...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the problems of low texture synthesis efficiency and poor texture synthesis quality in the existing geometric texture synthesis technology

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