立体视觉中最大的困难是对应点的寻找，即需要匹配二幅或更多幅立体图像对之间的特征。
The major difficulty in stereo vision is the correspondence problem that requires matching features between two or more stereo images.
在立体视觉中，从简单多面体的透视图象中提取线条结构对于以后的对应点匹配、识别和理解是非常关键的一步。
In stereo vision, the line structure extraction from a perspective view of a simple polyhedron is the key step for later corresponding problem, recognition and understanding.
色序系统是颜色按照感知色表特性在空间中的有序排列，其对应的颜色空间即为颜色立体。
Color order system is a sequential arrangement of colors in space according to their perceptive characteristics, which produces a color solid.
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