Harris角点检测算法的课件，比较实用，便于理论理解和指导实际编程-Harris corner detection algorithm courseware, more practical, easy to understand and guide the actual programming theory

在土工三轴试验中应用该方法使得试样的变形测量更加简便。通过使用高精度标定板，对该数字图像测量方 法进行了精度分析，结果表明亚像素角点检测方法的轴向和径向测量的标准差都达到了0．02个像素，相对测量精度达到10‘4 数量级。-Triaxial tests in application of this method makes it easier specimen deformation measurements. By using high-precision calibration bo

使用hough变换检测焊缝直线，再选取到端点确定为角点-Using the hough transform to detect weld line, then the endpoint identified as angular point