disable nonmaxima suppression

yaml/processor_visual_odometry.yaml

@@ -20,7 +20,7 @@ fast_params:
     # the higher, the more selective the detector is
     threshold_fast: 10
     # Avoids getting multiple keypoints at the same place
-    non_max_suppresion: true
+    non_max_suppresion: false
     # number of cells used by the active search grid data structure
     active_search_grid_nb_h: 12  # horizontal
     active_search_grid_nb_v: 10  # vertical