数字影像中角点与直线的高精度定位算子

HIGH-PRECISION LOCATION OPERATOR OF STRAIGHTLINE AND CORNER POINT ON DIGITAL IMAGES

本文在分析现有数字影像定位算子的基础上，提出了精确定位数字影像中角点与直线的高精度定位算子。这种算子通过精确定位组成角点的两条直线，从而精确定位角点。实验表明，新的定位算子有很高的定位精度，在理想情况下，新定位算子的精度可达0.02像素。最后，这种算子被用于数字影像的相对定向，取得了令人满意的结果。

: Based on the analyses of some famous location operators, a new high-preci-sion location operator for straight line and corner point on digital images has bedn proposed. It locates the corner point precisely through accurate positioning its two edges. The results of experiments show that the accuracy of corner point location is about 0.02 pixels in the ideal conditions. At last, the new operator is applied in the relative orientation of digital image pairs and the results are very satisfactory.