2018

Encoder-Decoder with Atrous Separable Convolution for Semantic Image Segmentation

Chen, Liang-Chieh, Zhu, Yukun, Papandreou, George et al.

Understand

Spatial pyramid pooling module or encode-decoder structure are used in deep neural networks for semantic segmentation task.

  • The former networks are able to encode multi-scale contextual information by probing the incoming features with filters or pooling operations at multiple rates and multiple effective fields-of-view, while the latter networks can capture sharper object boundaries by gradually recovering the spatial information.
  • In this work, we propose to combine the advantages from both methods.
  • Specifically, our proposed model, DeepLabv3+, extends DeepLabv3 by adding a simple yet effective decoder module to refine the segmentation results especially along object boundaries.

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