Recovery of spectral reflectances of imaged objects by the use of features of spectral reflectances
Recovery of spectral reflectances of imaged objects by the use of features of spectral reflectances
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DOI：
10.1364/josaa.27.000251
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发表时间：
2010-02-01
影响因子：
1.9
通讯作者：
Hironaga, Mikiya
中科院分区：
文献类型：
--
作者：
Shimano, Noriyuki;Hironaga, Mikiya
通过使用传感器响应来恢复被成像物体的光谱反射率对于在各种照明下再现彩色图像非常重要。虽然维纳估计通常用于恢复，但估计的恢复性能取决于光谱反射率的自相关矩阵和图像采集系统中存在的噪声。本文的目的是证明维纳估计与先前提案[IEEE Trans.图像处理。 16, 1848 (2006)]并且利用利用先前方法恢复的光谱反射率的特征的自相关矩阵对于大大提高性能是非常有效的。 (C) 2010 美国光学学会
Recovery of spectral reflectances of objects being imaged through the use of sensor responses is important to reproduce color images under various illuminations. Although the Wiener estimation is usually used for the recovery, the recovery performance of the estimation depends on the autocorrelation matrix of the spectral reflectances and the noise present in an image acquisition system. The purpose of the present paper is to show that the Wiener estimation with the noise variance estimated by the previous proposal [IEEE Trans. Image Process. 16, 1848 ( 2006)] and with the autocorrelation matrix that uses the features of the spectral reflectances recovered by the previous method is very effective in greatly improving the performance. (C) 2010 Optical Society of America