TABLE 1.

Training accuracy effect of PLB2C (IOU = 0.50:0.95) on PyTorch.

	MAP	AP_small	AP_ Medium	AP_large
Original faster_rcnn	48.9	18.3	39.7	56.3
PLB2C (default predict box)	46.6 (−4.70%)	19.2 (+4.92%)	38.8 (−2.27%)	53.9 (−4.26%)
PLB2C (matched labeled box)	47.7 (−2.45%)	16.8 (−8.20%)	38.3 (−3.53%)	55.1 (−2.13%)