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Deformable DETR: Deformable Transformers for End-to-End Object Detection

ICLR 2021 · Detection and segmentation › CNN features · approach: Region-based and query-based detectors · 1,852 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Replace DETR attention with deformable attentionDETR · COCO 2017 valAP: 42.0 -> 43.8Helped
Replace DETR attention with deformable attentionDETR · COCO 2017 valAP_S: 20.5 -> 26.4Helped
Add iterative bounding box refinement (ablation)Deformable DETR · COCO 2017 valAP: 43.8 -> 45.4Helped
Add two-stage region proposals (ablation)Deformable DETR with iterative refinement · COCO 2017 valAP: 45.4 -> 46.2Helped
Add FPN to multi-scale deformable attention (ablation)Deformable DETR · COCO 2017 valAP: 43.8 -> 43.8No clear effect
Replace FPN with BiFPN (ablation)Deformable DETR · COCO 2017 valAP: 43.8 -> 43.9No clear effect
Add multi-scale inputs (ablation)Deformable DETR with single-scale attention and K=1 · COCO 2017 valAP: 39.7 -> 41.4Helped
Increase sampling points from K=1 to K=4 (ablation)Deformable DETR with multi-scale inputs, no multi-scale attention · COCO 2017 valAP: 41.4 -> 42.3Helped
Add multi-scale attention (ablation)Deformable DETR with multi-scale inputs and K=4 · COCO 2017 valAP: 42.3 -> 43.8Helped
Replace multi-scale deformable attention with single-scale deformable convolution-like attention (ablation)Deformable DETR · COCO 2017 valAP: 43.8 -> 39.7Hurt
Use ResNet-101 instead of ResNet-50Deformable DETR · COCO 2017 test-devAP: 46.9 -> 48.7Helped
Use ResNeXt-101 instead of ResNet-101Deformable DETR · COCO 2017 test-devAP: 48.7 -> 49.0Helped

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