Dong Ni Yingge Qu Xuan Yang Yim-Pan Chui Tien-Tsin Wong Simon S. M. Ho Pheng-Ann Heng Volumetric Ultrasound Panorama Based on 3D SIFT. 52-60 2008 MICCAI (2) http://dx.doi.org/10.1007/978-3-540-85990-1_7 conf/miccai/2008-2 db/conf/miccai/miccai2008-2.html#NiQYCWHH08