%0 Journal Article
%T Sub-pixel mapping of remotely sensed imagery: a review<br>遥感影像亚像元定位研究综述
%A Ling Feng
%A Wu Shengjun
%A Xiao Fei
%A Wu Ke
%A Li Xiaodong
%A <br>凌峰
%A 吴胜军
%A 肖飞
%A 吴柯
%A 李晓冬
%J 中国图象图形学报
%D 2011
%I 
%X Sub-pixel mapping of remotely sensed imagery is a post-processing method of pixel unmixing in order to solve the issue of spatial uncertainty of mixed pixels. With the fraction images derived from pixel unmixing technologies as input, the spatial distribution of each land cover class within mixed pixels is determined and a sub-pixel scale land cover map is generated according to the spatial correlation principle. This paper firstly introduces the concept of sub-pixel mapping and analyses the theoretial models and currently used algorithms. Then, the main sources of errors, different accuracy assessments of the model and the ways to present the uncertainty of the model are summarized. The main methods for increasing the accuracy of sub-pixel mapping by ancillary data are also discussed. Finally, this paper concludes with an outlook and several key techniques of sub-pixel mapping.
%K remote sensing
%K mixed pixels
%K sub-pixel mapping
%K super-resolution mapping
%K spatial distribution
%K scale<br>遥感
%K 混合像元
%K 亚像元定位
%K 超分辨率制图
%K 空间分布
%K 尺度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=C900B6DEB868839F29AD95B6687E91C7&yid=9377ED8094509821&vid=7801E6FC5AE9020C&iid=5D311CA918CA9A03&sid=65C780F1B91D7CD5&eid=5D2AEAEFE5867538&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=1&reference_num=0