A Model Hole Filling Method Based on Texture Synthesis

Abstract

The invention discloses a model repairing method based on texture synthesis. A textured triangular mesh model containing holes is selected as input. First, holes are repaired in a conventional method without considering texture information on the input model, and smoothing is performed; secondly, the input model is smoothed by using Multi-resolution technology separates the characteristic displacement vector as the matching mark information; then parametrically processes the smoothed base surface mesh to obtain a two-dimensional plane, completes the sampling of each vertex on the parameterized plane, and obtains the area composed of each vertex sampling area The set of sample blocks; then search for the best matching sample block of the sample block to be repaired, and add the new texture information of the vertices to the base surface mesh, and update the vertex information in the area to be repaired sequentially similar to a spiral; finally according to the Update the grid vertex information, add constraints to solve the linear equations, reverse the new coordinates of the vertices to complete the target grid reconstruction. Therefore, the problem of missing texture features after repairing the textured triangular mesh model with holes is solved.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional digital geometry processing, and in particular relates to a grid model repairing method. Background technique [0002] The hole repair of the mesh model is one of the three-dimensional digital geometry processing technologies. Factors such as three-dimensional scanning measurement equipment, measurement methods and human errors lead to the loss of model data. After point cloud preprocessing or triangulation, incomplete surface defects are formed. The formation of holes affects the visual effect of 3D models and post-geometry processing, such as surface modeling and editing, and the development of model repair technology also provides new means and tools for cultural relics preservation and research. The main research methods of hole repair include radial basis function method, diffusion method, B-spline curve interpolation method, template deformation method, etc., and hole repair itself...

AI Technical Summary

Problems solved by technology

Because most of the actual textures have rough surface geometry, image texture synthesis technology can no longer simply satisfy the synthesis of 3D textures; most researches focus on the theory and method improvement of image texture and geometric texture synthesis, such as choosing different Geometric texture synthesis method or adjust the sample matching criteria to improve the algorithm, but the synthesis effect of geometric texture details is not ideal

[0004] To sum up, since the existing mesh model hole repair methods still have problems such as low accuracy and the incomplete repair of the original geometric texture details of the model, it is necessary to propose a new solution for holes in textured mesh models.

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