use of tracklet score

[jiko-lr]

hello Ziqi, thans for your great work. I have a question about the tracklet score update, in your code:

1. the tracklet score is initialized with
   self.latest_score = bbox.s
2. in the predict step
   self.latest_score = self.latest_score * 0.01
3. in the update step
   self.latest_score = update_info.bbox.s

since your life manager is based on hit instead of score, what's the point of the tracklet score that you use? i tried to modifed the the score decay coefficient for self.latest_score in the predict step, and find that the overall result is worse, but I can't find anything in the code that use the tracklet score. do you know the reason? thank you

[ziqipang]

@jiko-lr This project was several years ago, so I cannot remember all the details. But let me try from some vague memory and intuition.

1. Tracklet score is used to determine if we want to terminate a track, as mentioned in the paper.
2. The tracklet score will also be used for the output, which might help AMOTA.