摘要
为研究曝光时间与图像边缘位置的关系,从理论上分析了曝光时间对所采集图像灰度值的影响。通过实验论证了曝光时间对边缘提取质量的影响。并通过单变量实验法研究了曝光时间对边缘提取影响的规律,总结一种确定最适曝光时间和工件检测长度补偿值的方法。
In order to research the relationship between the exposure time and the edge position of image,the effect upon the exposure time on the gray value of image acquisition is analyzed in theory. Through the experimental verification,exposure time had a significant effect on the quality of the edge detection. After researched the law on this phenomena by the way of control variate method,it is summarized a manner to determine the most appropriate exposure time and relevant compensatory length.
引文
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