【摘要】 在图象测量及物体精确定位处理中，为了确定被测物体的旋转及平移的偏差量，通过处理被测物体图象的边缘而获得物体的几何参数。为提高测量系统的精度，本文提出了一种通过提取图象边缘的直线特征，并对边缘点进行插值加密的方法，将图象边缘定位于亚象元，利用最小二乘法拟合出直线方程，根据求得的参数，可以确定图象的旋转及平移量。该方法对带有直线特征的物体能达到较好的效果。更多还原

【Abstract】 In order to determine the deviation amounts of rotating and translation of the object in the image measurement and precision location of the object,the geometric parameters of the object are obtained through the processing of the edges of the measured object.In orde to improve the accuracy of the measuring system,a method for interpolating the edge points through extracting the straight line characteristics of the image edge is proposed in the paper.The rotating and translation amounts of the image can be determined according to the parameters obtained through the image edges are located in subpixel and the straight line formula is derived by use of least square method.The method has good effects for the object with straight line characteristics.更多还原