摘要
从图件扫描数字化误差理论分析出发，利用定向点和采样点的自动对中和多种人工采点方法的实验数据，对误差原因及分布规律进行了验证，得出了扫描数字化精度与手扶跟踪数字化精度相比具有一定的优势，对提高大比例尺图件数字化的精度和速度具有借鉴意义．
On the basis of experimental data of orientation points and sampling points,a detailed the oretical analysis for errors of map scanning digitalization is made .The conclusion of scanning digitalization is more precise then that the tracking digitalization gives.The present study can help increase map scanning digitalization precision and speed.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1999年第4期78-82,共5页
Journal of Hohai University(Natural Sciences)
关键词
图件扫描
数字化
定向点
采样点
精度分析
map scaning
digitalization
orientation points
sampling points
precision analysis
