For every point on contour curves, the support area and support radius were first calculated based on actual distance of adjacent pixels, end points were obtained with linear interpolation technique; Next, the distance between point and its centroid of su
For every point on contour curves, the support area and support radius were first calculated based on actual distance of adjacent pixels, end points were obtained with linear interpolation technique; Next, the distance between point and its centroid of su
摘要首先基于相邻像素间的欧氏距离计算出轮廓曲线上每一点的支持区域及支持半径，用线性插值得到支持区域的端点；然后求得支持区域的质心，以曲线上的点和其相应的支持区域质心之间的距离作为特征响应筛选出候选特征点；最后将具有局部极大特征强度的点作为多边形的顶点。