ResT V2: Simpler, Faster and Stronger

• URL: http://arxiv.org/abs/2204.07366v1
• Date: Fri, 15 Apr 2022 07:57:40 GMT
• Title: ResT V2: Simpler, Faster and Stronger
• Authors: Qing-Long Zhang and Yu-Bin Yang
• Abstract summary: This paper proposes ResTv2, a simpler, faster, and stronger multi-scale vision Transformer for visual recognition. We validate ResTv2 on ImageNet classification, COCO detection, and ADE20K semantic segmentation. Experimental results show that the proposed ResTv2 can outperform the recently state-of-the-art backbones by a large margin.
• Score: 18.610152288982288
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper proposes ResTv2, a simpler, faster, and stronger multi-scale vision Transformer for visual recognition. ResTv2 simplifies the EMSA structure in ResTv1 (i.e., eliminating the multi-head interaction part) and employs an upsample operation to reconstruct the lost medium- and high-frequency information caused by the downsampling operation. In addition, we explore different techniques for better apply ResTv2 backbones to downstream tasks. We found that although combining EMSAv2 and window attention can greatly reduce the theoretical matrix multiply FLOPs, it may significantly decrease the computation density, thus causing lower actual speed. We comprehensively validate ResTv2 on ImageNet classification, COCO detection, and ADE20K semantic segmentation. Experimental results show that the proposed ResTv2 can outperform the recently state-of-the-art backbones by a large margin, demonstrating the potential of ResTv2 as solid backbones. The code and models will be made publicly available at \url{https://github.com/wofmanaf/ResT}

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