%0 Journal Article
%T The Acquisition and Processing of X\|Ray Digital Subtraction Angiography (DSA)Image Based on Logarithm Non\|linear Mapping<br>基于对数非线性映射的X光数字减影图象的获取与处理
%A Jiang Linhu
%A Chen Shidong
%A Chai Zhenming
%A <br>江林华
%A 陈仕东
%J 中国图象图形学报
%D 1999
%I 
%X The effect of DSA(Digital Subtraction Angiography) images acquired with general subtraction algorithm is not satisfied, the merit of DSA images cannot be expressed and used extensively. According to the principle of formation of X\|ray image, this paper described an improved subtraction algorithm called the logarithm non linear grey mapping. In comparison with general subtraction algorithm, this improved subtraction algorithm finally acquired a satisfactory sequence of DSA vascular images with high contrast and high definition.
%K Digital Subtraction Angiography(DSA)
%K Logarithm
%K Grey mapping
%K High contrast<br>数字减影图象
%K 对数
%K 灰度映射
%K 医学图象
%K X光
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=48A44634809F86CD027CF4F248D47709&yid=B914830F5B1D1078&vid=E158A972A605785F&iid=9CF7A0430CBB2DFD&sid=1F7317C17A9AF4FA&eid=FE17D37BFC90FA6B&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=2&reference_num=0