Papers › Improving the Resolution of CNN Feature Maps Efficiently with Multisampling

Improving the Resolution of CNN Feature Maps Efficiently with Multisampling

28 May 2018arXiv:1805.10766archive 2025-07-28

Shayan Sadigh, Pradeep Sen

We describe a new class of subsampling techniques for CNNs, termed multisampling, that significantly increases the amount of information kept by feature maps through subsampling layers. One version of our method, which we call checkered subsampling, significantly improves the accuracy of state-of-the-art architectures such as DenseNet and ResNet without any additional parameters and, remarkably, improves the accuracy of certain pretrained ImageNet models without any training or fine-tuning. We glean possible insight into the nature of data augmentations and demonstrate experimentally that coarse feature maps are bottlenecking the performance of neural networks in image classification.

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Code

ShayanPersonal/checkered-cnn officialmentioned in papermentioned on GitHubpytorch report
abhishekroushan/CheckeredVizCNN_cs431 mentioned on GitHubpytorch report

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General ClassificationImage Classificationimage-classification

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1x1 ConvolutionAverage PoolingBatch NormalizationBottleneck Residual BlockConcatenated Skip ConnectionConvolutionDense BlockDense ConnectionsDropoutGlobal Average PoolingKaiming InitializationMax PoolingReLUResidual BlockResidual ConnectionSoftmax

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