Linear models of surface and illuminant spectra.
Linear models of surface and illuminant spectra.
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DOI：
10.1364/josaa.9.001905
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发表时间：
1992-11
期刊：
影响因子：
--
通讯作者：
D. Marimont;B. Wandell
中科院分区：
文献类型：
--
作者：
D. Marimont;B. Wandell
我们描述了创建有效的光谱表示的颜色的程序。该表示概括了传统的三刺激表示，其基于人眼的外围编码。我们使用低维线性模型来近似的表面和光源的光谱特性相对于传感设备的集合。我们选择的线性模型的基函数，通过最小化的误差近似传感器的表面和光源的集合响应。这些线性模型为打印机校准等应用程序提供了一些概念上的简化;它们在计算机图形应用程序中的性能也大大优于主成分近似。
We describe procedures for creating efficient spectral representations for color. The representations generalize conventional tristimulus representations, which are based on the peripheral encoding by the human eye. We use low-dimensional linear models to approximate the spectral properties of surfaces and illuminants with respect to a collection of sensing devices. We choose the linear-model basis functions by minimizing the error in approximating sensor responses for collections of surfaces and illuminants. These linear models offer some conceptual simplifications for applications such as printer calibration; they also perform substantially better than principal-components approximations for computer-graphics applications.