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本文通过分析在机器视觉检测中采用线结构光作为三角形测量光源时的图象特征，提出了用线光源实现快速尺寸测量的图象处理策略。该策略利用产品的已知几何模型制定检测索引表，通过检测索引表引导计算机进行图象处理，以提高机器视觉的智能程度和图象处理速度，从而实现对零件尺寸的快速在线测量。
In this paper, we analyze the image features when using line-structured light as the triangle measuring light source in the machine vision inspection, and put forward the image processing strategy of using the linear light source to achieve the rapid size measurement. This strategy makes use of the known geometric model of the product to make the test index table, guides the computer to carry on the image processing through examines the index table, in order to enhance the machine vision intelligence degree and the image processing speed, thus realizes the fast on-line measurement to the part size.