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Perturbed and Strict Mean Teachers for Semi-Supervised Semantic Segmentation

CVPR 2022 · Label-efficient and robust learning › Semi-supervised learning · approach: Consistency training for semi-supervised segmentation · 314 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use the proposed method instead of CPSDeepLabV3+ on Pascal VOC 2012 · Pascal VOC 2012 labelled partitions, ResNet-50 and ResNet-101mIoU: 72.83 vs 71.98; 75.70 vs 73.67; 76.43 vs 74.90; 77.88 vs 76.15 (ResNet-50); 75.50 vs 74.48; 78.20 vs 76.44; 78.72 vs 77.Helped
Use the proposed method instead of CPS in the matched settingDeepLabV3+ ResNet-50 on Cityscapes · Cityscapes labelled partitions 1/8, 1/4, and 1/2mIoU: 77.12 vs 76.61; 78.38 vs 77.83; 79.22 vs 78.77Helped
Replace MSE consistency loss with confidence-weighted CE (ablation)Mean Teacher on Pascal VOC 2012 · Pascal VOC 2012 1/8, ResNet-50 and ResNet-101mIoU: +2.30%; +2.81%Helped
Add teacher-estimated adversarial feature perturbation (T-VAT) (ablation)MT + Conf-CE · Pascal VOC 2012 1/8, ResNet-50 and ResNet-101mIoU: 74.87 vs 73.79; 77.36 vs 76.39Helped
Add the auxiliary teacher (ablation)MT + Conf-CE + T-VAT · Pascal VOC 2012 1/8, ResNet-50 and ResNet-101mIoU: +0.83%; +0.84%Helped
Use T-VAT rather than uniform feature noise, student VAT, or no feature perturbation (ablation)Proposed method · Pascal VOC 2012 ablationmIoU: +0.93%; +0.62%; +1.10%Helped
Apply CutMix after prediction rather than before prediction (ablation)Consistency training · Pascal VOC 2012 validationmIoU: around 3%Helped
Add the CAM pseudo-label loss to the consistency loss (ablation)Proposed method on Pascal VOC 2012 · Official labelled set, DeepLabV3+ ResNet-50 and ResNet-101mIoU: +0.63%; +1.18%Helped

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