关键词：遥感；蚀变矿物填图；混合像元；多元信息；找矿 [gap=1846]Key words： remote sensing； alteration mineral mapping； mixture pixel； multi—information； mineral resources
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In any standard image, a pixel has a sequence of three Numbers associated with it that dictate the mixture of the red, green, and blue (RGB) channels for the pixel (and therefore the color displayed).
在任何标准图片中，像素是三个相关联的成员序列，这三个成员指示像素的红、绿、蓝(RGB)通道的混合度(因而能指定颜色)。
A robust and adaptive appearance model is proposed, in which the value of each pixel over time is modeled by a mixture of Gaussians.
提出一种鲁棒自适应表面模型，该模型中每个像素值的变化过程由一混合高斯分布描述。
The problems of pixel mixture are the main obstacles of quantitative remote sensing.
混合像元问题是定量遥感的主要障碍之一。
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