Search Results for author: Tobias Alt

Found 10 papers, 0 papers with code

CNN-based Euler's Elastica Inpainting with Deep Energy and Deep Image Prior

no code implementations16 Jul 2022 Karl Schrader, Tobias Alt, Joachim Weickert, Michael Ertel

As a remedy, we design the first neural algorithm that simulates inpainting with Euler's Elastica.

Image Inpainting

Learning Sparse Masks for Diffusion-based Image Inpainting

no code implementations6 Oct 2021 Tobias Alt, Pascal Peter, Joachim Weickert

Diffusion-based inpainting is a powerful tool for the reconstruction of images from sparse data.

Image Compression Image Inpainting

Designing Rotationally Invariant Neural Networks from PDEs and Variational Methods

no code implementations31 Aug 2021 Tobias Alt, Karl Schrader, Joachim Weickert, Pascal Peter, Matthias Augustin

With only a few small filters, they can achieve the same invariance as existing techniques which require a fine-grained sampling of orientations.

Novel Concepts

Connections between Numerical Algorithms for PDEs and Neural Networks

no code implementations30 Jul 2021 Tobias Alt, Karl Schrader, Matthias Augustin, Pascal Peter, Joachim Weickert

We connect these concepts to residual networks, recurrent neural networks, and U-net architectures.

Translating Numerical Concepts for PDEs into Neural Architectures

no code implementations29 Mar 2021 Tobias Alt, Pascal Peter, Joachim Weickert, Karl Schrader

We investigate what can be learned from translating numerical algorithms into neural networks.

JPEG Meets PDE-based Image Compression

no code implementations1 Feb 2021 Sarah Andris, Joachim Weickert, Tobias Alt, Pascal Peter

Our codec consistently outperforms JPEG and gives useful indications for successfully developing hybrid codecs further.

Image Compression

Learning Integrodifferential Models for Image Denoising

no code implementations21 Oct 2020 Tobias Alt, Joachim Weickert

We show that both multiscale information and anisotropy are crucial for its success.

Image Denoising Philosophy

Translating Diffusion, Wavelets, and Regularisation into Residual Networks

no code implementations7 Feb 2020 Tobias Alt, Joachim Weickert, Pascal Peter

Convolutional neural networks (CNNs) often perform well, but their stability is poorly understood.

Denoising

Learning a Generic Adaptive Wavelet Shrinkage Function for Denoising

no code implementations21 Oct 2019 Tobias Alt, Joachim Weickert

In contrast to many existing shrinkage functions, it is able to enhance image structures by amplifying wavelet coefficients.

Denoising

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