FCOS: Fully Convolutional One-Stage Object Detection

ICCV 2019 Zhi TianChunhua ShenHao ChenTong He

We propose a fully convolutional one-stage object detector (FCOS) to solve object detection in a per-pixel prediction fashion, analogue to semantic segmentation. Almost all state-of-the-art object detectors such as RetinaNet, SSD, YOLOv3, and Faster R-CNN rely on pre-defined anchor boxes... (read more)

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Evaluation Results from the Paper


TASK DATASET MODEL METRIC NAME METRIC VALUE GLOBAL RANK COMPARE
Object Detection COCO minival FCOS (ResNet-50-FPN + improvements) box AP 38.6 # 38
Object Detection COCO minival FCOS (ResNet-50-FPN + improvements) AP50 57.4 # 30
Object Detection COCO minival FCOS (ResNet-50-FPN + improvements) AP75 41.4 # 26
Object Detection COCO minival FCOS (ResNet-50-FPN + improvements) APS 22.3 # 21
Object Detection COCO minival FCOS (ResNet-50-FPN + improvements) APM 42.5 # 22
Object Detection COCO minival FCOS (ResNet-50-FPN + improvements) APL 49.8 # 24
Object Detection COCO test-dev FCOS (ResNeXt-64x4d-101-FPN 4 + improvements) box AP 44.7 # 17
Object Detection COCO test-dev FCOS (ResNeXt-64x4d-101-FPN 4 + improvements) AP50 64.1 # 19
Object Detection COCO test-dev FCOS (ResNeXt-64x4d-101-FPN 4 + improvements) AP75 48.4 # 15
Object Detection COCO test-dev FCOS (ResNeXt-64x4d-101-FPN 4 + improvements) APS 27.6 # 12
Object Detection COCO test-dev FCOS (ResNeXt-64x4d-101-FPN 4 + improvements) APM 47.5 # 13
Object Detection COCO test-dev FCOS (ResNeXt-64x4d-101-FPN 4 + improvements) APL 55.6 # 18
Object Detection COCO test-dev FCOS (ResNeXt-32x8d-101-FPN) box AP 42.7 # 29
Object Detection COCO test-dev FCOS (ResNeXt-32x8d-101-FPN) AP50 62.2 # 30
Object Detection COCO test-dev FCOS (ResNeXt-32x8d-101-FPN) AP75 46.1 # 23
Object Detection COCO test-dev FCOS (ResNeXt-32x8d-101-FPN) APS 26.0 # 19
Object Detection COCO test-dev FCOS (ResNeXt-32x8d-101-FPN) APM 45.6 # 21
Object Detection COCO test-dev FCOS (ResNeXt-32x8d-101-FPN) APL 52.6 # 33
Object Detection COCO test-dev FCOS (ResNeXt-101-64x4d-FPN) box AP 43.2 # 26
Object Detection COCO test-dev FCOS (ResNeXt-101-64x4d-FPN) AP50 62.8 # 27
Object Detection COCO test-dev FCOS (ResNeXt-101-64x4d-FPN) AP75 46.6 # 19
Object Detection COCO test-dev FCOS (ResNeXt-101-64x4d-FPN) APS 26.5 # 17
Object Detection COCO test-dev FCOS (ResNeXt-101-64x4d-FPN) APM 46.2 # 20
Object Detection COCO test-dev FCOS (ResNeXt-101-64x4d-FPN) APL 53.3 # 29
Object Detection COCO test-dev FCOS (HRNet-W32-5l) box AP 42.0 # 33
Object Detection COCO test-dev FCOS (HRNet-W32-5l) AP50 60.4 # 36
Object Detection COCO test-dev FCOS (HRNet-W32-5l) AP75 45.3 # 27
Object Detection COCO test-dev FCOS (HRNet-W32-5l) APS 25.4 # 22
Object Detection COCO test-dev FCOS (HRNet-W32-5l) APM 45.0 # 24
Object Detection COCO test-dev FCOS (HRNet-W32-5l) APL 51.0 # 40