基于BRDF数据的金属漆颜料制品的色貌预测评估  

Evaluation on the prediction of color appearance model for metallic paints based on BRDF

作　　者：邓辰阳 廖宁放[1] 李玉梅[1] 李亚生[1] DENG ChenYang;LIAO Ningfang;LI Yumei;LI Yasheng(State Key Discipline Laboratory of Color Science and Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学颜色科学与工程国家专业实验室,北京100081

出　　处：《光学技术》2023年第2期191-196,共6页Optical Technique

基　　金：国家自然科学基金(61975012)。

摘　　要：通过双目观察与匹配心理物理学实验,对金属漆颜料制品在两种几何条件下进行了视觉评价,随后将金属漆颜料制品的视觉平均数据分别与基于双向反射分布函数(BRDF)数据和基于PR715分光辐射计测量结果的色貌模型预测结果进行最小二乘法线性拟合。实验结果表明,在不同几何条件下,BRDF数据均可以用来对金属漆颜料制品进行色貌预测;对于三属性预测而言,在明度和彩度方面,基于BRDF数据的色貌模型预测精度不如基于PR715分光辐射计数据的色貌模型预测精度,而在色调角方面,基于BRDF数据的色貌模型预测精度则高于基于PR715分光辐射计数据的色貌模型预测精度。Through binocular observation and matching psychophysical experiments,the visual evaluations of metallic paints under two geometric conditions were carried out,and the visual average data of metallic paints were linearly fitted by the least squares method with the prediction of color appearance model based on the bidirectional reflectance distribution function(BRDF)data and the PR715spectrophotometer measurements.The experimental results show that BRDF data can be used to predict the color appearance of metallic paints under different geometric conditions.For prediction of the three-attribute,the prediction accuracy of the color appearance model based on BRDF data is not as good as that based on PR715spectroradiometer data in terms of the brightness and chroma,while the prediction accuracy of the color appearance model based on BRDF data is higher than that based on PR715spectroradiometer data for hue angles.

关 键 词：BRDF 色貌模型 心理物理学实验 

分 类 号：O432.3[机械工程—光学工程]