Difference between smoothed track and non smoothed track

[daviduarte]

Hi,

In the phalp/visualize/postprocessor.py, in the run_lart() function, there is this code:

final_visuals_dic = joblib.load(phalp_pkl_path)

Where the function read the tracks generated by PHALP from videos. By my understanding, in the phalp_pkl_path file there are all features of all tracks in the target video. However, some lines of code later, the post_process() function is called, where it calls:

self.phalp_tracker.pose_predictor.smooth_tracks()

where all the tracks are smoothed.

What is the difference between smoothed tracks and non smoothed tracks? Can I use the features of non smoothed tracks in my application?

Thanks

[brjathu]

Right now, the smooth_tracks() function only applies action recognition, it does not smooth the tracks. Track smoothing requires a different checkpoint and a different config. Depending on your application you can directly use the features of the smpl parameters or the features for the action recognition if it more related to action understanding.