- r -

• R_ : rgrl_trans_rigid
• rad_k_ : rgrl_trans_homo2d_proj_rad
• radius_ : rgrl_feature_point_region , rgrl_feature_trace_pt , rgrl_feature_face_region , rgrl_invariant_single_landmark
• radius_sqr_ : rgrl_mask_sphere
• random_ : rgrl_matcher_k_nearest_random
• region_length_ : rgrl_feature_trace_region
• region_radius_ : rgrl_feature_trace_region
• rel_tol_thres_ : rgrl_convergence_tester
• relative_threshold_ : rgrl_nonlinear_estimator , rgrl_est_proj_func< Tdim, Fdim >
• res_ : rgrl_initializer_reader
• roi_ : rgrl_est_spline