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| 一种改进的灰度重构形状光照模型及其实现 | |
| 引用本文： | 赵辉煌,周德俭,黄春跃.一种改进的灰度重构形状光照模型及其实现[J].计算机集成制造系统,2009,15(10). |
| 作者姓名： | 赵辉煌 周德俭 黄春跃 |
| 作者单位： | 1. 西安电子科技大学,机电工程学院,陕西,西安,710071 2. 广西工学院,机械工程系,广西,柳州,545006;桂林电子科技大学,机电工程学院,广西,桂林,541004 3. 桂林电子科技大学,机电工程学院,广西,桂林,541004 |
| 摘 要： | 针对基于灰度重构形状的表面三维重构方法中重构精度不高的问题,提出一种改进的光照模型。该模型不仅改进了物体表面的漫反射分量,而且考虑了物体表面镜面反射分量对表面重构所产生的影响,把漫反射分量和镜面反射分量线性叠加。采用有限差分法离散改进光照模型中的变量,再利用Jacobi迭代法求解改进光照模型,得到物体表面点的重构高度值。以金属半球图像为例,分别采用改进的光照模型和传统光照模型进行三维重构。通过结果分析表明,采用改进的光照模型提高了重构精度,重构后的高度误差降至1 2.1 9%。 |
| 关 键 词： | 灰度重构形状 光照模型 三维重构 Jacobi迭代 |
Improved illumination model of shape from shading and its realization |
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| ZHAO Hui-huang,ZHOU De-jian,HUANG Chun-yue.Improved illumination model of shape from shading and its realization[J].Computer Integrated Manufacturing Systems,2009,15(10). | |
| Authors: | ZHAO Hui-huang ZHOU De-jian HUANG Chun-yue |
| Affiliation: | 1.School of Mechatronics Engineering;Xidian University;Xi'an 710071;China;2.Department of Mechanical Engineering;Guangxi University of Technology;Liuzhou 545006;3.School of Mechatronics Engineering;Guilin University of Electronic Technology;Guilin 541004;China |
| Abstract: | To improve the precision of imaging three-dimensional reconstruction based on shape from shading,an improved illumination model was proposed.This model not only improved the diffusion reflectance component,but also considered the influence of specular reflectance component with linear superposition.The variables of the model were dispersed by using finite difference method and the model was solved by using Jacobi iteration.Then,the three-dimensional reconstruction height was obtained.By taking the metallic ... |
| Keywords: | shape from shading illumination model three-dimensional reconstruction Jacobi iteration |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |