Three-D texture chartlet method based on master drawing covering and separating

Abstract

The method includes steps: according to certain condition, selecting a piece of surface from a 3D object; unbending and scaling the said piece of surface, and selecting the piece with less diversity factor between new and old textures to cover sample drawing; finally, carrying out segmenting operation for repeated area by using segmentation technique to make textures between new pasted piece and original piece be combined in most fit. Features are: simple algorithm, quick speed and easy of implementation.

Description

technical field [0001] The invention belongs to the technical fields of computer algorithms and virtual reality, and in particular relates to a three-dimensional texture mapping method based on sample map coverage and segmentation. Background technique [0002] Texture maps are widely used in various fields of computer graphics to increase the realism of three-dimensional objects. With the wide application of computer simulation, computer-aided design, computer animation and other technologies, texture mapping technology has been paid more and more attention by people. In recent years, many studies have focused on this problem, and many new methods and techniques have been proposed to improve the quality and speed of texture mapping. These studies mainly focus on "texture-from-sample technology": Given a 3D model and a texture sample, algorithms generate textures on the 3D model. These studies can be roughly divided into two categories, one is texture mapping and the other...

AI Technical Summary

Problems solved by technology

These two types of technologies each have their own advantages and disadvantages: Texture mapping can be used in a wider range of applications, whether it is a coarse 3D model or a fine 3D model

But the effect is generally not as good as texture synthesis, especially when the 3D model is rough

Texture synthesis generally has better results, but its 3D model must be very fine, which is not suitable for general situations, such as in real-time rendering

So far, the texture mapping technology on any surface, whether it is texture mapping or texture synthesis, has various defects: some techniques are applicable to limited textures, some techniques do not produce very good effects, some The speed of the technology is related to the size of the texture sample. When the texture sample is large, the speed drops rapidly

For the texture synthesis technology, it basically requires a relatively large time cost

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