Chiao C C, Cronin T W, Osorio D
Department of Biological Sciences, University of Maryland-Baltimore County, Baltimore, Maryland 21250, USA.
J Opt Soc Am A Opt Image Sci Vis. 2000 Feb;17(2):218-24. doi: 10.1364/josaa.17.000218.
Multispectral images of natural scenes were collected from both forests and coral reefs to represent typical, complex scenes that might be viewed by modern animals. Both reflectance spectra and modeled visual color signals in these scenes were decorrelated spectrally by principal-component analysis. Nearly 98% of the variance of reflectance spectra and color signals can be described by the first three principal components for both forest and coral reef scenes, which implies that three well-designed visual channels can recover almost all of the spectral information of natural scenes. A variety of natural illuminants affects color signals of forest scenes only slightly, but the variation in ambient irradiance spectra that is due to the absorption of light by water has dramatic influences on the spectral characteristics of coral reef scenes.
从森林和珊瑚礁收集了自然场景的多光谱图像，以呈现现代动物可能看到的典型复杂场景。通过主成分分析，对这些场景中的反射光谱和模拟视觉颜色信号进行了光谱去相关处理。对于森林和珊瑚礁场景，前三个主成分可以描述近98%的反射光谱和颜色信号方差，这意味着三个精心设计的视觉通道几乎可以恢复自然场景的所有光谱信息。各种自然光源对森林场景颜色信号的影响较小，但由于水对光的吸收导致的环境辐照光谱变化对珊瑚礁场景的光谱特征有显著影响。
Zotero 插件