Recovery of spectral reflectances of objects being imaged by multispectral cameras
Recovery of spectral reflectances of objects being imaged by multispectral cameras
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DOI：
10.1364/josaa.24.003211
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发表时间：
2007-10-01
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;Terai, Kenichiro;Hironaga, Mikiya
通过使用传感器响应获取成像物体的光谱信息对于在各种照明下再现彩色图像非常重要。过去，已经提出了几种模型来从传感器响应中恢复光谱反射率。使用多光谱相机比较了五种不同模型恢复的光谱反射率的准确性。结果表明，维纳估计使用 IEEE Trans 中提出的噪声方差估计。图像处理。当测试样本与学习样本不同时，1848 (2006) 15 比其他方法更准确地恢复光谱反射率。 (c) 2007 年美国光学学会。
Acquisition of spectral information of objects being imaged through the use of sensor responses is important to reproduce color images under various illuminations. In the past several models have been proposed to recover the spectral reflectances from sensor responses. The accuracy of the spectral reflectances recovered by five different models is compared by using multispectral cameras. It is shown that the Wiener estimation that uses the noise variance estimated as proposed in IEEE Trans. Image Process. 15, 1848 (2006) recovers the spectral reflectances more accurately than the others when the test samples are different from learning samples. (c) 2007 Optical Society of America.