This node uses video_stream_opencv
6 FPS worked well
Use small buffers to publish more precise bounding boxes
max_age is the maximum number of frames a tracker can exist by making max_age > 1 you can allow it to survive without a detection, for instance if there are n skip frames. set max_age = n. min_hits is the minimum number of times a tracker must be detected to survive. Default is 3, you can want to reduce to compensate for false detections.