$ pip install -r requirements.txt

detected people number in sliding window of size=(fps * interval) as stored data to calculate average person count.

choose the max number in each second, and calculate average of 5 max values.

The calculation is written in utils/flow_data.py

put the People_sample_2.mp4 in data/People_sample_2.mp4

$ python person_count.py

Fps: 50 on GeForce GTX 1080 Ti, 0.02s per frame