18 citations · 35 across the 6 of their papers we have counts for
7 papers
A Diffeomorphic Flow-based Variational Framework for Multi-speaker Emotion Conversion
Ravi Shankar, Hsi-Wei Hsieh, Nicolas Charon +1
This paper introduces a new framework for non-parallel emotion conversion in speech. Our framework is based on two key contributions. First, we propose a stochastic version of the…
Weight metamorphosis of varifolds and the LDDMM-Fisher-Rao metric
Hsi-Wei Hsieh, Nicolas Charon
This paper introduces and studies a metamorphosis framework for geometric measures known as varifolds, which extends the diffeomorphic registration model for objects such as curves…
Multi-speaker Emotion Conversion via Latent Variable Regularization and a Chained Encoder-Decoder-Predictor Network
Ravi Shankar, Hsi-Wei Hsieh, Nicolas Charon +1
We propose a novel method for emotion conversion in speech based on a chained encoder-decoder-predictor neural network architecture. The encoder constructs a latent embedding of th…
A numerical framework for elastic surface matching, comparison, and interpolation
Martin Bauer, Nicolas Charon, Philipp Harms +1
Surface comparison and matching is a challenging problem in computer vision. While reparametrization-invariant Sobolev metrics provide meaningful elastic distances and point corres…
Metrics, quantization and registration in varifold spaces
Hsi-Wei Hsieh, Nicolas Charon
This paper is concerned with the theory and applications of varifolds to the representation, approximation and diffeomorphic registration of shapes. One of its purpose is to synthe…
Diffeomorphic registration of discrete geometric distributions
Hsi-Wei Hsieh, Nicolas Charon
This paper proposes a new framework and algorithms to address the problem of diffeomorphic registration on a general class of geometric objects that can be described as discrete di…
Disorder chaos in the spherical mean-field model
Wei-Kuo Chen, Hsi-Wei Hsieh, Chii-Ruey Hwang +1
We consider the problem of disorder chaos in the spherical mean-field model. It is concerned about the behavior of the overlap between two independently sampled spin configurations…