Same reason as 3D - transform everything to center of 3d bounding box model (for models for which this is not already the case). This removes the need to have centroid realignment (if the bounding box is occlusion aware, else realign means with means)
Same reason as 3D - transform everything to center of 3d bounding box model (for models for which this is not already the case). This removes the need to have centroid realignment (if the bounding box is occlusion aware, else realign means with means)