CenterMask : Real-Time Anchor-Free Instance Segmentation

arXiv 2019 Youngwan LeeJongyoul Park

We propose a simple yet efficient anchor-free instance segmentation, called CenterMask, that adds a novel spatial attention-guided mask (SAG-Mask) branch to anchor-free one stage object detector (FCOS) in the same vein with Mask R-CNN. Plugged into the FCOS object detector, the SAG-Mask branch predicts a segmentation mask on each box with the spatial attention map that helps to focus on informative pixels and suppress noise... (read more)

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Results from the Paper


TASK DATASET MODEL METRIC NAME METRIC VALUE GLOBAL RANK RESULT LEADERBOARD
Object Detection COCO minival CenterMask+X101-32x8d (single-scale) box AP 44.4 # 23
APS 26.7 # 16
APL 57.1 # 17
Object Detection COCO minival CenterMask+VoVNetV2-57 (single-scale) box AP 44.6 # 21
APS 27.7 # 12
APM 48.3 # 13
Object Detection COCO minival CenterMask+VoVNet99 (multi-scale) box AP 48.6 # 8
AP50 67.8 # 5
Object Detection COCO minival Mask R-CNN (VoVNetV2-99, single-scale) box AP 44.9 # 19
APS 28.5 # 11
APL 57.7 # 15
Instance Segmentation COCO minival CenterMask-VoVNetV2-99-3x mask AP 40.2 # 10
Instance Segmentation COCO minival CenterMask-VoVNetV2-99 (multi-scale) mask AP 42.5 # 4
Object Detection COCO minival CenterMask+VoVNetV2-99 (single-scale) box AP 45.6 # 16
APS 29.2 # 8
APL 58.8 # 11
Instance Segmentation COCO test-dev CenterMask + VoVNetV2-99 (multi-scale) AP50 66.2 # 3
AP75 47.4 # 3
APS 27.2 # 3
Object Detection COCO test-dev Centermask + ResNet101 AP50 61.6 # 44
AP75 46.9 # 33
Instance Segmentation COCO test-dev CenterMask + VoVNetV2-57 (single-scale) AP50 60.8 # 10
APS 19.4 # 8
APM 41.7 # 8
Instance Segmentation COCO test-dev CenterMask + X101-32x8d (single-scale) mask AP 39.6% # 12
AP50 61.2 # 9
AP75 42.9 # 8
APS 19.7 # 7
Object Detection COCO test-dev CenterMask+VoVNet2-57 (single-scale) box AP 44.7 # 27
AP50 63.1 # 35
AP75 48.6 # 26
APS 27.1 # 26
APL 55.9 # 30
Object Detection COCO test-dev CenterMask + X-101-32x8d (single-scale) box AP 44.6 # 28
AP50 63.4 # 34
AP75 48.4 # 27
APM 47.2 # 29
Object Detection COCO test-dev CenterMask-VoVNet99 (multi-scale) AP50 68.3 # 10
AP75 53.2 # 12
APS 32.4 # 12
APL 60.0 # 14
Instance Segmentation COCO test-dev CenterMask + VoVNetV2-99 (single-scale) AP50 62.3 # 7
AP75 44.1 # 6
APS 20.1 # 6
APM 42.8 # 6
Object Detection COCO test-dev CenterMask+VoVNetV2-99 (single-scale) box AP 45.8 # 24
AP50 64.5 # 25
APS 27.8 # 23
APM 48.3 # 25
APL 57.6 # 23