Color rendering ability of light sources evaluated based on metameric reflectances

摘要：

　　The chromatic adaptation transform models have been widely used in the color rendering index (CRI) and color constancy calculations. However, there are transformation errors in the chromatic adaptation transform models themselves, which would further affect the accuracy of the CRI and color constancy models. The CIE Cat02 chromatic adaptation transform model was quantitatively evaluated based on different sets of reflectance samples under various kinds of illuminants. The results indicated that the transformation accuracy of the Cat02 model was illuminant dependent and the accuracy was low for the human-made light sources. A new method based on the volume of metameric reflectances was proposed to evaluate the color rendering ability of light sources. The new method doesnt require the chromatic adaptation transformation step and the experiment results indicated that the proposed method performed better than CIE CRIs.

关键词： Light sources Color rendering index Color constancy Metamerism

作者: Xiandou Zhang Shuwei Yue Qiang Wang Ge Li

作者单位: School of Media & Design, Hangzhou Dianzi University, Hangzhou 310018, China

会议类型: 国际会议

会议名称: The 3rd Conference of Asia Color Association(ACA2016 China)第三届亚洲颜色学术会议

会议地点: 江苏 常熟

会议语种:英文

页码: 73-76

在线出版日期: 2016-05-21（万方平台首次上网日期，不代表论文的发表时间）