Adjusting Instant NGP to Inner AABB

Author: Anthony-Tafoya

nerfstudio/models/instant_ngp.py

@@ -118,7 +118,7 @@ def populate_modules(self):
             self.config.render_step_size = ((self.scene_aabb[3:] - self.scene_aabb[:3]) ** 2).sum().sqrt().item() / 1000
         # Occupancy Grid.
         self.occupancy_grid = nerfacc.OccGridEstimator(
-            roi_aabb=self.scene_aabb,
+            roi_aabb=self.scene_aabb * 2 ** -(levels - 1),
             resolution=self.config.grid_resolution,
             levels=self.config.grid_levels,
         )

nerfstudio/process_data/process_data_utils.py

@@ -140,7 +140,7 @@ def convert_video_to_images(
         verbose: If True, logs the output of the command.
         image_prefix: Prefix to use for the image filenames.
         keep_image_dir: If True, don't delete the output directory if it already exists.
-        random_seed: If set, the seed used to choose the frames t commit of the video
+        random_seed: If set, the seed used to choose the frames of the video
     Returns:
         A tuple containing summary of the conversion and the number of extracted frames.
     """