As display technology advances in color gamut, the potential of experiencing higher degree of observer metamerism is more likely with narrow bandwidth stimuli display devices. In previous studies, it is confirmed that observer metamerism was introduced in soft proofing with monitor and color grading with projector scenarios, and also led to serious implications. Hence, it is desired to investigate whether laser-based projection system would introduce observer metamerism compared to halogen-based projection system. In this study, a two-part experiment was designed and conducted. Experiment 1 was based on color patches and experiment 2 was based on test images. Intra-observer and inter-observer variability were calculated and analyzed. Both experiments had illustrated observer metamerism was introduced in laser-based projection system. Comparison to CIE Standard Observers was also conducted for each experiment, and the results had suggested that the CIE Standard Observers were not suitable for laser-based projection system. A new observer category was required at least for the group of observers participating the experiments. A quick method to transform the content from the CIE 1964 Standard Observer for color patches or the CIE 1931 Standard Observer for images has been established in experiment 1, and this quick method could help to facilitate the growth of personalized color management system.

中文翻译：

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观察者变异性研究及实现新型光源投影系统观察者类别的方法

随着显示技术在色域方面的进步，窄带宽刺激显示设备更有可能体验到更高程度的观察者同色异谱。在之前的研究中，已经证实观察者同色异谱被引入到带有监视器的软打样和带有投影仪场景的颜色分级中，并且也导致了严重的影响。因此，需要研究与基于卤素的投影系统相比，基于激光的投影系统是否会引入观察者同色异谱。在这项研究中，设计并进行了一个由两部分组成的实验。实验 1 基于色块，实验 2 基于测试图像。计算和分析观察者内和观察者间的变异性。这两个实验都说明了在基于激光的投影系统中引入了观察者同色异谱。每个实验都与 CIE 标准观察者进行了比较，结果表明 CIE 标准观察者不适合基于激光的投影系统。至少对于参与实验的观察者组，需要一个新的观察者类别。实验1建立了一种快速转换CIE 1964 Standard Observer的色块或CIE 1931 Standard Observer的图像内容的方法，这种快速方法有助于促进个性化色彩管理系统的发展。