OAB-YOLOv5: One-Anchor-Based YOLOv5 for Rotated Object Detection in Remote Sensing Images

Table 2

Performance comparisons on DOTA-v1.5 test (OBB task) (%).

OBB results
Methods	Params	PL	BD	BR	GTF	SV	LV	SH	TC	BC	ST	SBF	RA	HA	SP	HC	CC	mAP
DCL [36]	33.4 M	79.09	72.7	37.85	62.67	46.91	50.65	73.21	89.41	72.53	59.62	51.99	68.81	52.36	65.56	56.49	10.23	59.40
RSDet [23]	33.2 M	79.26	79.67	41.61	67.03	48.42	53.41	73.55	89.30	75.08	63.41	50.65	68.50	61.96	64.27	55.08	11.44	64.40
GWD [37]	33.1 M	79.39	74.46	41.95	60.15	49.97	60.03	76.17	90.31	71.75	58.48	48.04	67.8	55.8	65.79	51.35	9.99	60.00
KLD [38]	41.8 M	80.31	74.33	47.87	60.14	65.98	73.11	87.1	89.55	75.38	81.80	49.98	71.8	64.34	71.75	55.97	0.00	65.60
R2-CNN [39]	41.8 M	80.38	78.7	47.95	62.55	65.6	71.33	86.34	89.74	76.29	76.23	49.73	67.55	63.47	73.14	58.44	15.66	66.40
Rotate-YOLOv5 [29]	41.8 M	87.82	78.13	45.60	58.73	66.70	76.21	88.69	90.69	79.59	78.05	41.70	70.40	65.61	75.47	54.53	10.86	66.80
RetinaNet [14]	—	71.43	77.64	42.12	64.65	44.53	56.79	73.31	90.84	76.02	59.96	46.95	69.24	59.65	64.52	48.06	0.83	59.16
MR [40]	—	76.84	73.51	49.9	57.8	51.31	71.34	79.75	90.46	74.21	66.07	46.21	70.61	63.07	64.46	57.81	9.42	62.67
CMR [41]	—	77.77	74.62	51.09	63.44	51.64	72.9	79.99	90.35	74.9	67.58	49.54	72.85	64.19	64.88	55.87	3.02	63.41
FR OBB [21]	—	71.89	74.47	44.45	59.87	51.28	68.98	79.37	90.78	77.38	67.5	47.75	69.72	61.22	65.28	60.47	1.54	62.00
FR H-OBB [21]	—	71.57	74.71	46.39	63.4	51.54	70.11	79.09	90.63	76.81	67.4	48.66	70.9	63.1	65.67	56.66	4.55	62.57
FR OBB + RT [23]	—	71.92	76.07	51.87	69.24	52.05	75.18	80.72	90.53	78.58	68.26	49.18	71.74	67.51	65.53	62.16	9.99	65.03
OAB-YOLOv5 (ours)	20.3 M	80.67	77.2	46.37	60.13	66.08	75.80	87.85	90.64	78.12	79.54	46.28	70.58	67.70	75.42	53.63	28.15	68.02

The short names for categories are defined as follows: PL: plane; BD: baseball diamond; BR: bridge; GTF: ground field track; SV: small vehicle; LV: large vehicle; SH: ship; TC: tennis court; BC: basketball court; ST: storage tank; SBF: soccerball field; RA: roundabout; HA: harbor; SP: swimming pool; HC: helicopter; CC: container crane.