Mingen Lin Jinhui Xu Sambit Bhattacharya Ronald Berezney Surface approximation based image simplification and applications. 2988-2993 2004 conf/smc/2004 SMC (3) http://dx.doi.org/10.1109/ICSMC.2004.1400788 db/conf/smc/smc2004-3.html#LinXBB04