Online Help:

Usage: /vol/vssp/local/trees/amma-4/linux/bin/exMultiLevelMatchEst [options] 
   -optload () [] Load options from a file.  
   -optsave () [] Save options to a file.  
   -mask (mask.pgm) [mask.pgm] Mask of region to be estinated
   -frame0 (frame0.pgm) [frame0.pgm] Reference frame
   -frame1 (frame1.pgm) [frame1.pgm] Following frame
   -mm (TRANSLATIONAL) [TRANSLATIONAL]  
   -levels (4) [4]   
   -rob_thr (20) [20]   
   -help (TRUE) [FALSE] Print usage information.