2019

PixelVAE++: Improved PixelVAE with Discrete Prior

Sadeghi, Hossein, Andriyash, Evgeny, Vinci, Walter et al.

Understand

Constructing powerful generative models for natural images is a challenging task.

  • PixelCNN models capture details and local information in images very well but have limited receptive field.
  • Variational autoencoders with a factorial decoder can capture global information easily, but they often fail to reconstruct details faithfully.
  • PixelVAE combines the best features of the two models and constructs a generative model that is able to learn local and global structures.

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