Terrain elevation value-based texture synthesis method

Abstract

The invention discloses a terrain elevation value-based texture synthesis method. The method comprises the following steps of: 1, acquiring an initial texture image; 2, dividing sampling points in a terrain model into n subsets Hi according to the attitude, wherein i is more than or equal to 1 and less than or equal to n, and i and n are both integral numbers; 3, establishing the mapping relationship between a candidate texture image and the boundary value of the subset of the sampling points; 4, acquiring a related initial texture image of pixel points in a result texture image and taking the weight of the related initial texture image; and 5, generating all the pixel values in the result texture image by a weight sum method and accomplishing the texture synthesis. The texture generated by the method is associated with terrain sampling points, so texture information which can really reflect terrain attitude attributes can be dynamically generated, and when the texture information is applied to a dynamic terrain visualized system, a vivid dynamic scene can be drawn.

Description

technical field [0001] The invention belongs to the field of texture synthesis in computer graphics, and relates to a texture synthesis method based on terrain elevation values. Background technique [0002] Texture synthesis technology is one of the hot technologies in the field of computer graphics in the past ten years, which can be divided into the following two categories: [0003] 1. Pixel-based texture synthesis. Pixel-based texture synthesis is generated according to the Markov random process, which is an earlier technology in the field of texture synthesis. The speed and synthesis effect of this random-process texture synthesis algorithm have always been two bottlenecks in its development. [0004] 2. Texture synthesis based on patches. Slice-based texture synthesis is the mainstream technology in the field of texture synthesis. With the deepening of texture synthesis technology research, a series of new branches such as surface texture synthesis, dynamic texture...

AI Technical Summary

Problems solved by technology

[0005] Although there are many texture synthesis techniques, the texture synthesis technology specifically for terrain is still underdeveloped; and due to the complexity of texture generation operations for terrain, the efficiency of most texture synthesis algorithms for terrain is low, which undoubtedly limits The application of texture synthesis technology in the terrain visualization system that requires high real-time and interactivity

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