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MaX-DeepLab: End-to-End Panoptic Segmentation With Mask Transformers

CVPR 2021 · Detection and segmentation › CNN features · approach: Unified panoptic segmentation · 501 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
directly predict class-labeled masks with a mask transformer and PQ-style trainingMaX-DeepLab-L · COCO test-devPQ: 51.3Helped
replace convolutional blocks with axial-attention blocks (ablation)MaX-DeepLab · COCO valPQ: 45.7 -> 47.8Helped
increase input resolution from 641 to 1025 while using axial-attention blocks (ablation)MaX-DeepLab · COCO valPQ: 47.8 -> 49.4Helped
stack the decoder once (ablation)MaX-DeepLab · COCO valPQ: 1.4% PQHelped
extend decoder stacking from L=1 to L=2 (ablation)MaX-DeepLab · COCO valPQ: 47.1 -> 47.5No clear effect
train for more iterations (ablation)MaX-DeepLab · COCO valPQ: 45.7 -> 46.9 -> 47.7Helped
add P2M feedback attention (ablation)MaX-DeepLab dual-path transformer · COCO valPQ: 45.0 -> 45.7Helped
add M2M self-attention (ablation)MaX-DeepLab dual-path transformer · COCO valPQ: 45.1 -> 45.7No clear effect
apply transformer blocks at stride 8 in addition to stride 16 (ablation)MaX-DeepLab dual-path transformer · COCO valPQ: +1.0% PQHelped
add stride 4 transformer blocks to the stride 16 and 8 configuration (ablation)MaX-DeepLab dual-path transformer · COCO valPQ: 46.7 -> 46.3Hurt
use RQ × SQ rather than RQ + SQ for matching and loss weighting (ablation)MaX-DeepLab · COCO valPQ: 44.9 -> 45.7Helped
add instance discrimination loss to the PQ-style loss (ablation)MaX-DeepLab · COCO valPQ: 39.5 -> 42.6Helped

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