二值地图图像目标点的自动对准算法

地图经扫描仪扫描得到的数字地图图像，为实现地图数据采集的智能化和自动化创造了有利条件。本文针对地图图像上的各种目标点提出了相应的自动对准算法。实验表明，采用自动对准算法不仅提高了目标点的量测速度，而且也可相应提高量测精度，一般可达到子像素级。

An Approch to Automatic Aiming at Object Points on Binay Map Image

Digital map images which can obtained by scanning maps offer a favourable condition for intelligent and automatic map information acquisition.The algorithms of automatic aimming at various kinds of object points are put forward in this paper.Experiments show that both the effcienty and the accuracy of the measured points are raised with the methods described in this paper.The accuracy of the measured points can reach the level of subpixel.