Color speckle measurement errors using system with XYZ filters
Color speckle measurement errors using system with XYZ filters
复制标题
使用带有 XYZ 滤光片的系统的色斑测量误差
DOI：
10.1007/s10043-017-0364-5
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
K. Kuroda
中科院分区：
文献类型：
--
作者：
J. Kinoshita;Kazuhisa Yamamoto;K. Kuroda
分析了采用旋转xyz滤波器和二维传感器的彩色散斑测量系统的测量误差。其中一个误差是由于滤波器的特性不符合理想的配色函数。另一种是由于通过xyz滤波器的光路不相关引起的。通过BGR色度三角与BGR波长测量得到的真三角之间的转换，可以很容易地校正所有像元数据的未拟合色斑误差。对于不相关误差，测量的BGR色度值分布在真实值周围。这样一来，校正不相关误差就会变得更加复杂，需要逐像素重复三角转换。彩色散斑及其误差对相干光源显示器的色度测量和图像质量也有很大影响。
Measurement errors of color speckle are analyzed for a measurement system equipped with revolvingXYZfilters and a 2D sensor. One of the errors is caused by the filter characteristics unfitted to the ideal color matching functions. The other is caused by uncorrelations among the optical paths via theXYZfilters. The unfitted color speckle errors of all the pixel data can be easily calibrated by conversion between the measured BGR chromaticity triangle and the true triangle obtained by the BGR wavelength measurements. For the uncorrelated errors, the measured BGR chromaticity values spread over around the true values. As a result, it would be more complicated to calibrate the uncorrelated errors, repeating the triangular conversion pixel by pixel. Color speckle and its errors greatly affect also chromaticity measurements and image quality of displays using coherent light sources.