摘要
大比例尺地形图数字化方式主要有手工数字化和扫描矢量数字化,目前在生产实践中采用较多的是扫描矢量数字化。经过对大比例尺地形图数字化的精度分析,认为要素对象误差、作业员的作业误差、扫描图像纠正误差、原地形图的误差是地形图扫描矢量数字化的主要误差来源。
The method of the digitization of large scale relief map has mainly handwork and scan vector digitization. At present, scan vector digitization is central in practice. The error sources of large scale scan vector digitization, which these authors consider, is basic essential object error, workers' error, rectification error of scan image, and quondam relief map error.
出处
《地矿测绘》
2004年第1期30-31,共2页
Surveying and Mapping of Geology and Mineral Resources
基金
2002年江西省高校省级教改课题
5 矿业工程重点实验室运行模式研究
关键词
地形图
数字化
扫描矢量化
精度
Relief map
Digitization
Scan vectorization
Precision
