def __init__(self, max_per_img=500, down_ratio=4, regress_ltrb=True, for_mot=False):
    super(TTFBox, self).__init__()
    self.max_per_img = max_per_img
    self.down_ratio = down_ratio
    self.regress_ltrb = regress_ltrb
    self.for_mot = for_mot
def __init__(self, max_per_img=500, down_ratio=4, regress_ltrb=True, for_mot=False):
    super(TTFBox, self).__init__()
    self.max_per_img = max_per_img
    self.down_ratio = down_ratio
    self.regress_ltrb = regress_ltrb
    self.for_mot = for_mot