Chen Ding Yankui Sun Xiaolin Tian Zesheng Tang A Hybrid Method for Automatic and Highly Precise VHD Background Removal. 294-303 2007 MIMI http://dx.doi.org/10.1007/978-3-540-79490-5_36 conf/mimi/2007 db/conf/mimi/mimi2007.html#DingSTT07