%0 Journal Article
%T Nonlinear Correction Technique for Radiography Image<br>闪光照相底片成像非线性校正技术研究
%A ( Institute of Fluid Physics
%A PB -
%A Mianyang ( National Laboratory of ATR
%A National University of Defense Technology
%A Changsha
%A <br>管永红
%A 王润生
%A 施将君
%J 光子学报
%D 2005
%I 
%X Principle of nonlinear correction for radiographic image by optic density vs. path length curve was introduced. By the principle of radiography, the function of the optic density and the path length was monotonous on conditional that the X-ray radiation and the scatter distribution were regular. So the optic density vs. path length curve could be used to correct the radiographic image. A background was added on the corrected image when the scatter distribution was non-regular. A radiographic image of triangle object was corrected using this method, and the results confirmed the method.
%K Flash X-ray radiography
%K Image process
%K Nonlinear correction<br>校正技术
%K 照相底片
%K 非线性校正
%K 闪光照相
%K 关系曲线
%K 接收方式
%K 成像原理
%K 单调函数
%K 散射分布
%K 先验知识
%K 处理结果
%K 图像
%K 光程
%K 穿透
%K 密度
%K 三棱柱
%K 均匀
%K 客体
%K 光场
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=B4E62F371AEF07B5&yid=2DD7160C83D0ACED&vid=339D79302DF62549&iid=94C357A881DFC066&sid=626A0FE8E3130AB5&eid=04CF423CEE45E258&journal_id=1004-4213&journal_name=光子学报&referenced_num=3&reference_num=11