基于激光扫描的三维人体模型彩色纹理映射方法的研究

发布时间：2018-04-26 01:37

本文选题：多传感器 + 色彩差异修正　；参考：《天津大学》2016年硕士论文

【摘要】：人体三维彩色模型重建是三维彩色模型重建领域研究的一项重要课题,其在服装定制、数字娱乐等领域有着广阔的应用前景。基于激光扫描的人体三维彩色模型重建,就是采用一定的纹理映射方法将不同方位拍摄的人体纹理图像映射到人体的三维模型表面。本文在分析国内外研究现状的基础上,基于激光三维扫描技术,研究人体彩色模型重建的纹理映射方法。论文的主要工作及创新性如下:1.针对三维人体彩色扫描仪多个传感器由于方位、曝光参数、光照条件等内外因素导致纹理图像存在色彩差异的问题,提出采用色彩迁移的方法进行纹理图像色彩差异修正,有效的减小了多幅纹理图像之间的色彩差异,解决了三维人体彩色模型表面色彩分块问题,提高了三维人体彩色模型的质量。2.借鉴摄像机自标定思想,在不需要制作专门标定靶的情况下,利用人体三维模型特征点和主纹理图像相对应的二维特征点,实现了主纹理图像与人体三维模型的映射关系的标定。3.通过标定其它纹理图像与主纹理图像之间的位置关系,求解出其它纹理图像与人体三维模型之间的投影关系,实现了多个彩色传感器所拍纹理图像与人体三维模型之间的准确映射。4.进行了真人模特的三维彩色模型重建实验,对不同着装的女模特和男模特,采用本文所提出的色彩差异修正方法和纹理映射方法,重建出了色彩均衡自然的三维人体彩色模型,证明了所提理论和方法的有效性。
[Abstract]:Human 3D color model reconstruction is an important subject in the field of 3D color model reconstruction. It has a broad application prospect in the field of clothing customization, digital entertainment and so on. The reconstruction of human 3D color model based on laser scanning is to use a certain texture mapping method to map human texture images from different directions to the surface of human 3D model. Based on the analysis of the current research situation at home and abroad, this paper studies the texture mapping method of human color model reconstruction based on 3D laser scanning technology. The main work and innovation of this paper are as follows: 1. In order to solve the problem of color difference in texture image caused by many sensors in 3D human body color scanner, such as orientation, exposure parameter, illumination condition and so on, a method of color migration is proposed to correct the color difference of texture image. It can effectively reduce the color difference between multiple texture images, solve the problem of color partitioning on the surface of 3D human color model, and improve the quality of 3D human color model. With reference to the idea of camera self-calibration, the 2D feature points corresponding to the 3D human body model and the main texture image are used without the need to make a special calibration target. The mapping relation between the main texture image and the human body 3D model is calibrated. 3. 3. By calibrating the position relation between other texture image and main texture image, the projection relation between other texture image and human body 3D model is solved. The mapping between texture image and human body 3D model is realized. 4. 4. The experiment of 3D color model reconstruction of human model is carried out. The color difference correction method and texture mapping method proposed in this paper are used to reconstruct the 3D color model of human body, which is balanced and natural in color, for female model and male model with different clothes, and the color difference correction method and texture mapping method proposed in this paper are used to reconstruct the 3D color model. The validity of the proposed theory and method is proved.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP391.41;TN249

【相似文献】