Udpate calls to Open3D functions (#108)

Author: jingnanshi

examples/teaser_python_3dsmooth/teaser_python_3dsmooth.py

@@ -264,10 +264,10 @@ def pair_eval_helper(scene_path, desc_path, gt_mat, frag1_idx, frag2_idx):
     frag2_desc = frag2_desc["data"]
 
     # save as o3d feature
-    frag1 = o3d.registration.Feature()
+    frag1 = o3d.pipelines.registration.Feature()
     frag1.data = frag1_desc.T
 
-    frag2 = o3d.registration.Feature()
+    frag2 = o3d.pipelines.registration.Feature()
     frag2.data = frag2_desc.T
 
     # load point clouds

examples/teaser_python_fpfh_icp/example.py

@@ -64,7 +64,7 @@
 o3d.visualization.draw_geometries([A_pcd_T_teaser,B_pcd])
 
 # local refinement using ICP
-icp_sol = o3d.registration.registration_icp(
+icp_sol = o3d.pipelines.registration.registration_icp(
       A_pcd, B_pcd, NOISE_BOUND, T_teaser,
       o3d.registration.TransformationEstimationPointToPoint(),
       o3d.registration.ICPConvergenceCriteria(max_iteration=100))