The Irregular Regional Texture Extraction And 3D Model Mapping

With realistic three-dimensional modeling is an important research topic in the field of computer vision and graphics, it has a wide range of applications in the industrial and engineering design, digital entertainment, medical and archaeological research, etc. Irregular regional texture extraction and 3D model mapping have great important significance for the achievement of realistic three-dimensional modeling. The study's goal is to achieve the extraction of irregular regional texture image, paste it adaptively into a corresponding irregular regions surface of 3D model, the current market-aided design and manufacturing software system on a single model of the mapping are using the mapping method of the whole image to the whole model, which can not be achieved on a single model of the designated irregular regional mapping, contents and methods at home and abroad related to the research involved very little. Extraction irregular region texture image (such as patterns, animals, plants, etc.) properly and accurately paste it into the corresponding irregular region surface of 3D model, it has a good practical value to simulation modeling and 3D texture printing of art products that classical sculpture furniture, calligraphy, building and ancient ceramics, etc.This paper studies the irregular regional texture extraction and 3D model mapping by the following aspects:First, To get an accurate geometric model and easily achieve the model data standards exchange, for meeting the realization of projects needs of the model aided design, this paper uses the OpenGL-based Three-dimensional modeling method, first modeling using a professional modeling software, then converted the model data into OpenGL program to reconstruct the model. This method can avoid the direct use of OpenGL modeling of complex work, and can be controlled by OpenGL programs, the appearance of 3D model looked more sophisticated, is a very practical method of modeling.Second, for the needs of 3D model irregular regional mapping, the paper proposes texture extraction methods based on mathematical morphology and center coordinates. The problem of irregular region texture extraction from the image and the model surface two sides to consider, and describe the model surface texture data with the STL file format, and optimize to the extracted texture.Third, for the three-dimensional model irregular regional texture mapping, according to the characteristics of irregular region texture, based on texture mapping technology, this paper respectively proposes corresponding mapping algorithms to the common 3D model and complex 3D model of the irregular region texture mapping, and model surface irregular regions texture to the similar 3D models mapping. Joints on the texture boundary processing, given a parametric approach.Experiments show that the irregular regional texture extraction and 3D model mapping method in this paper has achieved the mapping that the tread pattern of arbitrary shape to the corresponding irregular region of the designated 3D model, the algorithm complex is low, the mapping distortion low, and can fast echo texture model, does not interfere and destroy the original model details the designated areas outside.