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CVPR 2022 quality paper sharing
2022-04-23 15:43:00 【Polar chain AI cloud】
CVPR 2022 High quality paper sharing
A ConvNet for the 2020s
The paper :https://arxiv.org/abs/2201.0354
Code :https://github.com/facebookresearch/ConvNeXt
2020 Since then ,ViT It has always been a research hotspot .ViT The performance of image classification exceeds that of convolutional network , Various variants developed later will ViT Carry forward ( Such as Swin-T,CSwin-T etc. ), It is worth mentioning that Swin-T The sliding window operation in is similar to the convolution operation , Reduced computational complexity , bring ViT It can be used as a backbone network for other visual tasks ,ViT It's getting hotter . This paper explores where the convolution network loses , Where is the limit of convolution network . In this paper , The author gradually moved towards ResNet Add structure ( Or use trick) To improve the performance of convolution model , In the end ImageNet top-1 It's done 87.8%. The author believes that the network structure proposed in this paper is a new generation (2020 years ) Convolution network of (ConvNeXt), Therefore, the article is named “2020 Convolution network in the s ”.
Incremental Transformer Structure Enhanced Image Inpainting with Masking Positional Encoding
The paper :https://arxiv.org/abs/2203.00867
Code :https://github.com/DQiaole/ZITS_inpainting
In recent years , Great progress has been made in image restoration . However , It is still challenging to restore damaged images with vivid texture and reasonable structure . Because of convolutional neural networks (CNN) My receptive field is limited , Some specific methods can only deal with regular textures , The overall structure will be lost . On the other hand , Attention based models can better learn the remote dependence of structural recovery , But they are limited by a large number of calculations in large image size reasoning . To solve these problems , This paper proposes to use additional structure restorer to gradually promote image restoration . The proposed model uses a powerful attention based method in a fixed low resolution sketch space Transformer Model to restore the overall image structure .
Class Re-Activation Maps for Weakly-Supervised Semantic Segmentation
The paper :https://arxiv.org/pdf/2203.00962.pdf
Code :https://github.com/zhaozhengChen/ReCAM
This paper introduces a very simple and efficient method : Use the name ReCAM Of softmax Cross entropy loss (SCE) Reactivate with BCE Convergence of CAM. Given an image , This article USES the CAM Extract the characteristic pixels of each class , And use them with class tags SCE Learn another fully connected layer ( After the trunk ). After convergence , This paper is based on CAM Extract... In the same way as in ReCAM. because SCE The contrasting nature of , Pixel responses are decomposed into different categories , Therefore, the expected mask ambiguity will be less . Yes PASCAL VOC and MS COCO Our assessment shows that ,ReCAM It can not only generate high-quality masks , It can also be in any CAM The variant supports plug and play with little overhead .
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