| 水泥板表面BRDF统计建模的优化与实现 |
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| 引用本文： | 黄朝军,刘利梅,王凤华,刘海波,刘全一.水泥板表面BRDF统计建模的优化与实现[J].陕西理工学院学报(自然科学版),2010,26(1):71-74. |
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| 作者姓名： | 黄朝军 刘利梅 王凤华 刘海波 刘全一 |
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| 作者单位： | 陕西理工学院,物理系,陕西,汉中,723001 |
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| 基金项目： | 陕西省教育厅专项科研计划项目，陕西理工学院科研基金资助项目 |
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| 摘 要： | 分析了水泥板表面光散射的特点，结合图像处理方法计算了水泥板表面CCD图像像素的灰度梯度。通过遗传模拟退火算法反演出双向反射分布函数（BRDF）中遮蔽函数的参数，将反演的参数替换遮蔽函数中的经验参数计算水泥板表面的BRDF，并将拟合值和BRDF的实验值相比较，结果显示，随入射角增大遮蔽函数参数取反演值时的BRDF比取经验值时的BRDF精度更高，为目标表面BRDF统计建模的优化提供一种方法。
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| 关 键 词： | 双向反射分布函数 统计建模 灰度梯度 遗传模拟退火算法 |
Optimization and implementation of BRDF statistic modeling on the surface of cement boards |
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| HUANG Chao-jun,LIU Li-mei,WANG Feng-hua,LIU Hai-bo,LIU Quan-yi.Optimization and implementation of BRDF statistic modeling on the surface of cement boards[J].Journal of Shananxi University of Technology:Natural Science Edition,2010,26(1):71-74. |
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| Authors: | HUANG Chao-jun LIU Li-mei WANG Feng-hua LIU Hai-bo LIU Quan-yi |
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| Institution: | HUANG Chao-jun,LIU Li-mei,WANG Feng-hua,LIU Hai-bo,LIU Quan-yi(Department of Physical Sciences,Shaanxi University of Technology,Hanzhong 723001,China) |
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| Abstract: | The characteristics of optical scattering on cement board surface are analyzed,and combined with image processing the gray gradient of image element of CCD image grey-scale map on the cement board surface is computed.After being inversed the parameters of shadowing function through Genetic Simulated Annealing Algorithm,the BRDF of the cement board surface is computed,The experimental parameters of shadowing function is replaced by inversion parameters.The computed fitted value is compared with experiment va... |
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| Keywords: | BRDF statistic modeling gray gradient Genetic Simulated Annealing Algorithm |
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