%0 Journal Article
%T A Study of Pixel Position Accuracy of Scanned and Thinned Image<br>扫描图象细化后象点点位精度研究
%A GE Yong-hui
%A <br>葛永慧
%J 中国图象图形学报
%D 2000
%I 
%X An algorithm for estimating mean square error of the pixel position of scanned and thinned image is put forward in this paper. Based on some experiments, the conclusion is obtained that mean square error of pixel position is generally composed of both constant error and ratio error, the effect of different thinning approach on the accuracy is too small and the scanner may exist regular error etc. Thinned and scanned image is the basis of tracing vectorization and its accuracy is important in such areas as translating it into datum used by GIS. So it is necessary to study pixel accuracy of scanned and thinned image.
%K Scanned image
%K Pixel position accuracy
%K Method of estimation<br>扫描图象
%K 象点点位精度
%K 图象细化
%K 地图数字化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=2D32E5B86873F79EC52AC2C4603F59CF&yid=9806D0D4EAA9BED3&vid=94C357A881DFC066&iid=0B39A22176CE99FB&sid=D5C9DC4EF2F78008&eid=43608FD2E15CD61B&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=4&reference_num=5