Stacked Capsule Autoencoders

Code

• github.com/google-research/google-research
  OfficialIn papertf★ 37,519
• github.com/akosiorek/stacked_capsule_autoencoders
  Officialtf★ 0
• github.com/MuhammadMomin93/Stacked-Capsule-Autoencoders-PyTorch
  pytorch★ 0
• github.com/phanideepgampa/stacked-capsule-networks
  pytorch★ 0
• github.com/benenzhu/version0.3-scae
  pytorch★ 0
• github.com/KohavTal/SCAE_Project
  pytorch★ 0
• github.com/Victor-Martinez-Pozos/stacked_capsule_autoencoders
  tf★ 0
• github.com/ara-25/MSDS19002_Project_DLSpring2020
  pytorch★ 0
• github.com/bdsaglam/torch-scae
  pytorch★ 0
• github.com/cxiang26/stacked_capsule_autoencode_pl
  pytorch★ 0

Abstract

Objects are composed of a set of geometrically organized parts. We introduce an unsupervised capsule autoencoder (SCAE), which explicitly uses geometric relationships between parts to reason about objects. Since these relationships do not depend on the viewpoint, our model is robust to viewpoint changes. SCAE consists of two stages. In the first stage, the model predicts presences and poses of part templates directly from the image and tries to reconstruct the image by appropriately arranging the templates. In the second stage, SCAE predicts parameters of a few object capsules, which are then used to reconstruct part poses. Inference in this model is amortized and performed by off-the-shelf neural encoders, unlike in previous capsule networks. We find that object capsule presences are highly informative of the object class, which leads to state-of-the-art results for unsupervised classification on SVHN (55%) and MNIST (98.7%). The code is available at https://github.com/google-research/google-research/tree/master/stacked_capsule_autoencoders

Tasks

Reproductions