摘要
在光学测量中，激光光斑中心定位算法的精度和速度将直接影响到实际测量的精度和速度，因而中心定位算法的选择显得尤为重要。针对光学测量中的几种激光光斑中心定位方法，对灰度重心法、随机Hough变换法、最小二乘圆拟合处理激光光斑中心的性能进行了比较。比较结果表明，最小二乘圆拟合法不但具有很高的定位精度，而且具有很快的计算速度，甚至还能检测光斑半径。
In optical measuring process, the precision and speed of the algorithm for calculating laser spot＇s center will directly affect the precision and speed of the actual measurement, thus the choice of centralized positioning algorithm is particularly important. In allusion to the several laser spot centralized positioning methods in optical measurement, the performances for processing laser spot＇s center of grayscale centroid algorithm, random Hough transformation method and least squares circle fitting algorithm were compared. The comparison result shows that the least squares circle fitting algorithm not only has a high positioning accuracy, but also is of a quick computation speed, and even can detect spot radius as well.
出处
《自动化信息》
2011年第9期33-35,共3页
Automation Information
关键词
激光光斑
重心法
随机HOUGH变换
最小二乘圆拟合
Laser Spot
Centroid Method
Randomized Hough Transformation
Least SqUares Circle Fitting
