基于改进型Blinn遮蔽函数的目标材料表面可见光偏振反射研究
Visible polarized reflection of target material surface based on improved Blinn masking function
摘要
Abstract
Focusing on the visible polarization reflection characteristics of typical target materials surfaces,the polarization bidirectional reflection distribution function model based on the improved Blinn masking function was established considering the effects of specular reflection,diffuse reflection and volume scatter-ing,which maked up for the defect of traditional"V"masking function.The physical parameters of the tar-get materials were inverted by genetic algorithm,and the visible light polarization characteristics of four tar-get materials,namely polypropylene,99 alumina ceramic,iron and green painted aluminum,were simulated.Experimental tests validate the model's accuracy.Results indicate that at an incidence angle of 50°,relative azimuth angles of 90°-270°,and detection angles of 0°-60°,the improved model reduces the root mean square error(RMSE)by 70.61%to 24.73%,with a minimum RMSE of 0.0129.Significant polarization is ob-served at relative azimuth angles of 120°-240°.The larger the ratio of the real part to the imaginary part of the complex refractive index of the four materials,the greater the peak value of the degree of polarization.In the visible light band,the wavelength has little effect on the degree of polarization.These findings provide theoretical data supporting the understanding of polarization characteristics in typical target materials.关键词
偏振特性/材料表面/可见光波段/遮蔽函数/偏振双向反射分布函数Key words
polarization property/surface of material/visible wavelength/masking function/PBRDF分类
数理科学引用本文复制引用
刘承麟,战俊彤,张肃,王超,付强,李英超,段锦,姜会林..基于改进型Blinn遮蔽函数的目标材料表面可见光偏振反射研究[J].中国光学（中英文）,2024,17(5):1162-1174,13.基金项目
国家自然科学基金(No.62127813,No.62375027) （No.62127813,No.62375027）
吉林省教育厅项目(No.JJKH20220738KJ) （No.JJKH20220738KJ）
吉林省科技厅项目(No.20230203029SF,No.20210201093GX) （No.20230203029SF,No.20210201093GX）
光电测量与智能感知中关村开放实验室与北京控制工程研究所空间光电测量与感知实验室开放基金资助(No.LabSOMP-2022-11,No.LabSOMP-2022-12) （No.LabSOMP-2022-11,No.LabSOMP-2022-12）
重庆市自然科学基金(No.CSTB2023NSCO-MSX0504) Supported by the National Natural Science Foundation of China(No.62127813,No.62375027) （No.CSTB2023NSCO-MSX0504）
The Educa-tional Department of Jilin Province(No.JJKH20220738KJ) （No.JJKH20220738KJ）
The Science and Technology Department of Jilin Province(No.20230203029SF,No.20210201093GX) （No.20230203029SF,No.20210201093GX）
Zhongguancun Open Laboratory of Opto-electronic Measurement and Intelligent Sensing and Beijing Institute of Control Engineering(No.LabSOMP-2022-11,No.LabSOMP-2022-12) （No.LabSOMP-2022-11,No.LabSOMP-2022-12）
Natural Science Foundation of Chongqing City(No.CSTB2023NSCO-MSX0504) （No.CSTB2023NSCO-MSX0504）
