Yingchao Li Yongtian Wang Jian Yang Yanhui Li Novel Algorithm for Distortion Correction of Image Intensifier in X-ray Angiography System. 203-207 2008 BMEI (2) http://doi.ieeecomputersociety.org/10.1109/BMEI.2008.253 conf/bmei/2008-2 db/conf/bmei/bmei2008-2.html#LiWYL08