code: public static String inlierPercent(VisualOdometry alg) {
  		if( !(alg instanceof AccessPointTracks3D))
  			return "";
  
  		AccessPointTracks3D access = (AccessPointTracks3D)alg;
  
  		int count = 0;
  		int N = access.getAllTracks().size();
  		for( int i = 0; i < N; i++ ) {
  			if( access.isInlier(i) )
  				count++;
  		}
  
  		return String.format("%%%5.3f", 100.0 * count / N);
  	}
docs: If the algorithm implements AccessPointTracks3D, then count the number of inlier features
  and return a string.