| 基于三维校正的SHGC物体三维结构提取方法 |
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| 引用本文： | 吴志红,刘日晨,甘霖. 基于三维校正的SHGC物体三维结构提取方法[J]. 电子科技大学学报(社会科学版), 2011, 0(3) |
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| 作者姓名： | 吴志红 刘日晨 甘霖 |
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| 作者单位： | 四川大学计算机学院;四川大学视觉合成重点学科实验室;四川电力科学研究院; |
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| 基金项目： | 国家自然科学基金(60832011,60705005); 国家863探索导向课题(2007AA01Z332); 教育部新世纪人才支持计划(NCET-08-0370); 高等学校博士学科点专项科研基金(20090181110052) |
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| 摘 要： | 针对SHGC(straight homogeneous generalized cylinders)图像的特点与从单幅图像中提取三维信息困难,设计了一种基于单幅SHGC图像和三维校正的三维结构提取方法。与传统的SHGC三维结构提取方法不同,该方法从三维空间中匹配的角度出发,构造一个二维横截面,在二维横截面上增加一个z轴,通过平移、旋转预先构造好的三维横截面,将构造好的横截面与原图像中SHGC物体的横截面进行兴趣点匹配,从而确定最优化结果时的仿射成像参数(λ,θ),通过成像参数可以成功提取SHGC横截面的三维信息,结合SHGC的子午线轮廓信息定性地得到整个SHGC物体的三维信息,提取SHGC表面的纹理,通过三角网格的方法将纹理贴到三维物体表面。实验论证了本文提出的三维结构提取方法是可行的和正确的。
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| 关 键 词： | 仿射变换 SHGC 单幅图片 三维 |
3D Structure Extraction Method Based on Three-Dimensional Rectification for Straight Homogeneous Generalized Cylinders |
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| WU Zhi-hong,LIU Ri-chen, GAN Lin. 3D Structure Extraction Method Based on Three-Dimensional Rectification for Straight Homogeneous Generalized Cylinders[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2011, 0(3) |
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| Authors: | WU Zhi-hong LIU Ri-chen GAN Lin |
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| Affiliation: | WU Zhi-hong1,2,LIU Ri-chen1,and GAN Lin3(1.College of Computer Science,Sichuan University Chengdu 610065,2.State Key Laboratory of Fundamental Science on Synthetic Vision,3.Sichuan Electric Power Research Institute Chengdu 610072) |
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| Abstract: | A three-dimensional(3D) structure extraction algorithm based on a rectification method in 3D space for SHGC(straight homogeneous generalized cylinders) is designed in this paper.This algorithm resorts to the properties of SHGC and aims at the difficulties of the 3D information extraction from a single image.Different from the conventional algorithms of SHGC,a two-dimensional cross section which resemble the cross section of the original object is constructed in this algorithm.The cross section is placed int... |
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| Keywords: | affine transformation SHGC single view three-dimensinal |
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