Correction Method of Color Deviation Caused by Different Angle in Color Measuring

被引：1
|
作者：
Dang, Rui [1 ]
Shi, Ruiqi [1 ]
Liu, Miao [1 ]
机构：
[1] Tianjin Univ, Sch Architecture, Tianjin Key Lab Architectural Phys & Environm Tec, Tianjin 300072, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2019年 / 11卷 / 03期
关键词：
Colour measurement; correction method; geometric condition; SAMPLES;
D O I：
10.1109/JPHOT.2019.2914182
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Aiming at the color deviation caused by different angle in color measuring, a correction method has been designed. CIE x, y chromaticity coordinates of 34 RAL-K7 samples under different illumination angles of 30 degrees-60 degrees were measured. Then, we use LASSO function fitting and cross validation to establish a chromaticity coordinate migration prediction model under arbitrary illumination angle in the range of 30 degrees-60 degrees. On this basis, chromaticity coordinates measured under any three illumination angles in the range of 30 degrees-60 degrees can be corrected to the chromaticity coordinate at 45 degrees/0 degrees CIE (Commission Internationale de L'Eclairage) standard illumination observation condition by sequential quadratic programming. The accuracy of the correction method was evaluated by experiments. The research results can provide a correction method of color deviation caused by different angle in color measuring.
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页数：12
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