DSP技术在砂轮地貌三维重构中的应用*

作者：龚俊锋，祈 辉 日期：2010-11-22/span> 浏览：3446 查看PDF文档

DSP技术在砂轮地貌三维重构中的应用*

龚俊锋，祈 辉

（三明学院 物理与机电工程系，福建 三明 365004）

摘要：为了检测砂轮的磨损状况，提出了一种线结构光检测方法，对砂轮的地貌进行了三维重构。为满足工程应用需求，将数字信号处理器（DSP）应用到砂轮的结构光检测中，利用DSP强大的数值运算能力，对摄像机采集得到的图像数据进行了实时处理分析，并基于Snake算法提取出了结构光投射在砂轮表面上的光条边缘的连续轮廓，使用定标矩阵将连续轮廓的图像坐标转换成物理坐标，从而提取出了砂轮表面上的高度数据，重构出了砂轮的三维地貌，最后对砂轮地貌特征进行了分析，为研制商品化的砂轮在线检测装置打下了基础。
关键词：砂轮地貌；线结构光；数字信号处理器；Blackfin
中图分类号：TH117.1；TH393；TG70
文献标识码：A文章编号：1001-4551(2010)10-0025-05

Application of DSP in 3D reconstruction of grinding wheel
GONG Junfeng, QI Hui
(Department of Physics and Mechanics and Electronics, Sanming University, Sanming 365004, China)

Abstract: For grinding wheel wear measurement, the linearstructured light method was used to reconstructing 3D morphology of grinding wheel. In order to meet the need of engineering, digital signal processor(DSP) was applied into vision detecting of grinding wheel. By the powerful computation of DSP，images from camera were realtime analyzed, and based on the Snake algorithm, continuous edge of structured light which projected on the surface of grinding wheel was extracted. The image coordinates were transformed to physical coordinates, according to the calibration matrix. And then the 3D morphology was reconstructed. At last the feature of grinding wheel was analyzed, which make a base for the development of commercial products.
Key words: morphology of grinding wheel; linearstructured light; digital signal processor(DSP); Blackfin