class Trackable:
def __init__(self, bbox):
self._averager = Averager(AVG_SERIES, len(bbox))
self._seen = 0
self._unseen = 0
self.push(bbox)
def match(self, bbox):
return distance(centroid(bbox), centroid(
self._averager.latest())) < DIST_THRESHOLD
def bbox(self):
return self._averager.mean()
def push(self, bbox):
self._averager.push(bbox)
self._seen += 1
self._unseen = max(0, self._unseen - 1)
def unseen(self):
self._unseen += 1
if self.delete():
self._seen = 0
def good(self):
return self._seen > SEEN_THRESHOLD
def delete(self):
return self._unseen > LOST_THRESHOLD
