John H. Hipwell Graeme P. Penney Robert A. McLaughlin Kawal S. Rhode Paul E. Summers Tim C. S. Cox James V. Byrne J. Alison Noble David J. Hawkes Intensity based 2D-3D registration of cerebral angiograms. 1417-1426 2003 22 IEEE Trans. Med. Imaging 11 db/journals/tmi/tmi22.html#HipwellPMRSCBNH03 http://dx.doi.org/10.1109/TMI.2003.819283