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Accurate Few-Shot Object Detection With Support-Query Mutual Guidance and Hybrid Loss

CVPR 2021 · Detection and segmentation › Open-set and few-shot detection · approach: Few-shot object detection · 69 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Add support-guided dynamic kernel query enhancement (ablation)Few-shot detector · COCO minival, 20 novel classes, 10-shotAP50: 15.6 -> 18.8Helped
Add class-agnostic proposal refinement (ablation)Few-shot detector with kernel generator · COCO minival, 20 novel classes, 10-shotAP75: 4.0 -> 7.4Helped
Add multi-level proposal scoring (ablation)Few-shot detector with CAR · COCO minival, 20 novel classes, 10-shotAP50: 19.3 -> 23.1Helped
Replace binary cross-entropy with the hybrid loss (ablation)Few-shot detector with MPS · COCO minival, 20 novel classes, 10-shotAP50: 23.1 -> 26.5Helped
Add query-guided support weighting (ablation)Few-shot detector · COCO, 10-shotAP50: 26.5 -> 27.0Helped
Use basic contrastive loss instead of the hybrid loss (ablation)Few-shot detector · COCO minival, 20 novel classes, 10-shotAP50: 27.0 -> 18.0Hurt
Add adaptive margin to basic contrastive loss (ablation)Few-shot detector · COCO minival, 20 novel classes, 10-shotAP50: 18.0 -> 18.7Helped
Use downsampling for negative proposals with adaptive margin (ablation)Few-shot detector · COCO minival, 20 novel classes, 10-shotAP50: 18.7 -> 24.4Helped
Use OHEM for negative proposals with adaptive margin (ablation)Few-shot detector · COCO minival, 20 novel classes, 10-shotAP50: 18.7 -> 25.1Helped
Replace adaptive margin plus OHEM with the hybrid loss (ablation)Few-shot detector · COCO minival, 20 novel classes, 10-shotAP50: 25.1 -> 27.0Helped
Score proposals at all FPN levels instead of only the top level (ablation)Few-shot detector · COCO, 10-shotAP: 10.3 -> 12.6Helped
Score proposals at all FPN levels instead of a single size-selected level (ablation)Few-shot detector · COCO, 10-shotAP: 11.5 -> 12.6Helped

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