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Facial Action Unit Detection With Transformers

CVPR 2021 · Label-efficient and robust learning › Recognition and long-tail · approach: Uncertainty-aware facial expression recognition · 104 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use the proposed attention, multi-task embeddings, center contrastive loss, and transformer correlation modelFacial action unit detection · BP4DF1-score (Avg.): 62.1 -> 64.2Helped
Use the proposed attention, multi-task embeddings, center contrastive loss, and transformer correlation modelFacial action unit detection · DISFAF1-score (Avg.): 58.7 -> 61.5Helped
Use BP4D-pretrained rather than ImageNet-pretrained features (ablation)Ours · EmotioNet validationF1-score: 45.7 -> 47.3Helped
Pretrain on BP4D and DISFA rather than BP4D alone (ablation)Ours · EmotioNet validationF1-score: 47.3 -> 47.1Hurt
Add ImageNet-pretrained features to the baseline CNN (ablation)BP4D AU detector · BP4DF1-score: 59.0 -> 60.4Helped
Add per-AU multi-task branches (ablation)Pretrained BP4D AU detector · BP4DF1-score: 60.4 -> 61.0Helped
Add an attention branch (ablation)Pretrained multi-task BP4D detector · BP4DF1-score: 61.0 -> 62.3Helped
Add supervision from landmark-derived attention maps (ablation)Pretrained multi-task BP4D detector with attention · BP4DF1-score: 62.3 -> 62.5Helped
Add center contrastive loss (ablation)Pretrained multi-task BP4D detector with supervised attention · BP4DF1-score: 62.5 -> 62.8Helped
Add the transformer encoder (ablation)Pretrained multi-task BP4D detector · BP4DF1-score: 61.0 -> 63.4Helped
Use InceptionV3 rather than ResNet50 features (ablation)Full BP4D detector · BP4DF1-score: 63.7 -> 64.2Helped
Use WTL and WCE in both attention and inference branches rather than WTL alone (ablation)BP4D AU detector · BP4DF1-score: 61.3 -> 64.2Helped

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