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Sebastien Ehrhardt

5 accepted papers

2020

3D Multi-bodies: Fitting Sets of Plausible 3D Human Models to Ambiguous Image Data

NeurIPS 2020spotlight

We consider the problem of obtaining dense 3D reconstructions of deformable objects from single and partially occluded views. In such cases, the visual evidence is usually insufficient to identify a 3D reconstruction uniquely, so we aim at recovering several plausible reconstructions compatible with…

Cited by 94SourcePDFScholar
2020

Automatically Discovering and Learning New Visual Categories with Ranking Statistics

ICLR 2020poster

We tackle the problem of discovering novel classes in an image collection given labelled examples of other classes. This setting is similar to semi-supervised learning, but significantly harder because there are no labelled examples for the new classes. The challenge, then, is to leverage the inform…

Cited by 250SourcecodeScholar
2020

RELATE: Physically Plausible Multi-Object Scene Synthesis Using Structured Latent Spaces

NeurIPS 2020poster

We present RELATE, a model that learns to generate physically plausible scenes and videos of multiple interacting objects. Similar to other generative approaches, RELATE is trained end-to-end on raw, unlabeled data. RELATE combines an object-centric GAN formulation with a model that explicitly accou…

2019

Small Steps and Giant Leaps: Minimal Newton Solvers for Deep Learning

ICCV 2019poster

We propose a fast second-order method that can be used as a drop-in replacement for current deep learning solvers. Compared to stochastic gradient descent (SGD), it only requires two additional forward-mode automatic differentiation operations per iteration, which has a computational cost comparable…

Cited by 23PDFcodeScholar