本文指出，图形识别实质上是图形空间中的表象变换（坐标系变换）。
In this article, it has been pointed out that the pattern recognition is the representation transformation in pattern space.
摄像机标定作为视觉测量的首要条件，旨在建立图像坐标与空间坐标的关系，摄像机标定实质上是确定摄像机内外参数的一个过程。
As primary condition for visual measurement, camera calibration is focused on how to build the relation between image coordinates and spatial coordinates.
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