Johan Thärnå Kenneth Nilsson Josef Bigün Orientation Scanning to Improve Lossless Compression of Fingerprint Images. 343-350 http://dx.doi.org/10.1007/3-540-44887-X_41 2003 conf/avbpa/2003 AVBPA db/conf/avbpa/avbpa2003.html#TharnaNB03