nwojke / deep_sort

Simple Online Realtime Tracking with a Deep Association Metric
GNU General Public License v3.0
5.3k stars 1.48k forks source link

Difference between original paper and code #321

Open Hope1337 opened 10 months ago

Hope1337 commented 10 months ago

In original paper (on page 2, section 2.2) the authors said that they keep last 100 feature for each track to calculate the cosine distance metric :

image

But in their code here, they delete all feature every time a confirmed track has been update :

image

I don't understand why, I am interested in it because I want to use deepSORT in my own project and utilize the feature vector for some purpose.

Hope1337 commented 10 months ago

@nwojke I apologize for bothering you, but the purpose is to optimize for time and memory, isn't it?