2018

CCNet: Criss-Cross Attention for Semantic Segmentation

Huang, Zilong, Wang, Xinggang, Wei, Yunchao et al.

Understand

Contextual information is vital in visual understanding problems, such as semantic segmentation and object detection.

  • We propose a Criss-Cross Network (CCNet) for obtaining full-image contextual information in a very effective and efficient way.
  • Concretely, for each pixel, a novel criss-cross attention module harvests the contextual information of all the pixels on its criss-cross path.
  • By taking a further recurrent operation, each pixel can finally capture the full-image dependencies.

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