基于计算机视觉的圆锯片精密集成测量*

作者：刘庆民,赵玲,杨耀华 日期：2009-11-16/span> 浏览：3852 查看PDF文档

基于计算机视觉的圆锯片精密集成测量*

刘庆民,赵玲,杨耀华
（杭州电子科技大学 机械工程学院,浙江 杭州 310018）

摘要：为了提高圆锯片图像边缘的定位精度，提出了一种在边缘点灰度梯度方向上对梯度幅值进行插值的亚像素细分算法。为了满足高速测量的需要，将图像处理、尺寸标定、参数计算等整个测量过程集成起来，构建了圆锯片的计算机视觉测量系统。实验结果表明，利用改进的亚像素方法与直线Hough变换实现测量时，达到了精密、高速的测量要求。
关键词：圆锯片；电荷耦合器件；拟合；测量；亚像素；误差
中图分类号：TG83文献标识码：A文章编号：1001-4551(2009)10-0019-05

Precision integrated measurement on circular saw blade based on computer vision
LIU Qingmin, ZHAO Ling, YANG Yaohua
(College of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China)
Abstract: Aiming at enhancing the orientation precision of image edge, a new subpixel arithmetic applying the polynomial interpolation to subpixel edge detecting at the gradient direction of edge on gradient images was put forward. To meeting quickspeed measurement, the whole course containing image process, parameter calculation, and calibration etc. were integrated. The measurement system on circular saw blade was established. Experiment results show that, while taken the subpixel method and the Hough transformation, the whole measurement reaches the speed and the precision requirements of rapid precision measurement.
Key words: circular saw blade; charge coupled device(CCD); fitting; measurement; subpixel; error
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