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What is: Efficient Spatial Pyramid?

SourceESPNet: Efficient Spatial Pyramid of Dilated Convolutions for Semantic Segmentation
Year2000
Data SourceCC BY-SA - https://paperswithcode.com

An Efficient Spatial Pyramid (ESP) is an image model block based on a factorization principle that decomposes a standard convolution into two steps: (1) point-wise convolutions and (2) spatial pyramid of dilated convolutions. The point-wise convolutions help in reducing the computation, while the spatial pyramid of dilated convolutions re-samples the feature maps to learn the representations from large effective receptive field. This allows for increased efficiency compared to another image blocks like ResNeXt blocks and Inception modules.