基于遗传算法的数字地图误差校正方法研究

来源于纸质地图的数字地图存在误差，在这样的数字地图上建立ＧＩＳ（地理信息系统）应用之前必须进行偏差校正。根据系统辨识的原理，提出了利用少数控制点对数字地图偏差进行最小化校正的方法，并采用遗传算法对最小化校正问题进行了求解。算法精度高、速度快，校正结果可直接用于ＣＩＳ应用。

STUDY OF ERROR RECTIFICATION METHOD OF DIGITAL MAP BASED ON GENETIC ALGORITHM

There exists errors in the conversion of a paper medium map into a digital one. The errors mustbe rectified before a GIS application based on the digital map is created. The thesis puts forward amethod in which a few control points are used to rectify the errors of digital map according to theprinciple of system idendcation. The minimization of the errors is solved by genetic algorithm.The algorithm used in this paper has higher calculation precision and faster calculation speed, andthe results of rectification can be used directly in GIS application.