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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TASK DATASET MODEL METRIC NAME METRIC VALUE GLOBAL RANK BENCHMARK
Instance Segmentation COCO test-dev CenterMask + ResNet-101-FPN mask AP 38.3% # 16
Real-time Instance Segmentation MSCOCO CenterMask + MobileNetV2 AP 25.2 # 2
Frame (fps) 50 # 1

Methods used in the Paper