Search Results for author: Thomas Wiatowski

Found 7 papers, 0 papers with code

Topology Reduction in Deep Convolutional Feature Extraction Networks

no code implementations10 Jul 2017 Thomas Wiatowski, Philipp Grohs, Helmut Bölcskei

Finally, for networks based on Weyl-Heisenberg filters, we determine the prototype function bandwidth that minimizes---for fixed network depth $N$---the average number of operationally significant nodes per layer.

Energy Propagation in Deep Convolutional Neural Networks

no code implementations12 Apr 2017 Thomas Wiatowski, Philipp Grohs, Helmut Bölcskei

This paper establishes conditions for energy conservation (and thus for a trivial null-set) for a wide class of deep convolutional neural network-based feature extractors and characterizes corresponding feature map energy decay rates.

Deep Structured Features for Semantic Segmentation

no code implementations26 Sep 2016 Michael Tschannen, Lukas Cavigelli, Fabian Mentzer, Thomas Wiatowski, Luca Benini

We propose a highly structured neural network architecture for semantic segmentation with an extremely small model size, suitable for low-power embedded and mobile platforms.

General Classification Segmentation +1

Discrete Deep Feature Extraction: A Theory and New Architectures

no code implementations26 May 2016 Thomas Wiatowski, Michael Tschannen, Aleksandar Stanić, Philipp Grohs, Helmut Bölcskei

First steps towards a mathematical theory of deep convolutional neural networks for feature extraction were made---for the continuous-time case---in Mallat, 2012, and Wiatowski and B\"olcskei, 2015.

Facial Landmark Detection Feature Importance +2

Deep Convolutional Neural Networks on Cartoon Functions

no code implementations29 Apr 2016 Philipp Grohs, Thomas Wiatowski, Helmut Bölcskei

Wiatowski and B\"olcskei, 2015, proved that deformation stability and vertical translation invariance of deep convolutional neural network-based feature extractors are guaranteed by the network structure per se rather than the specific convolution kernels and non-linearities.

Translation

A Mathematical Theory of Deep Convolutional Neural Networks for Feature Extraction

no code implementations19 Dec 2015 Thomas Wiatowski, Helmut Bölcskei

Deep convolutional neural networks have led to breakthrough results in numerous practical machine learning tasks such as classification of images in the ImageNet data set, control-policy-learning to play Atari games or the board game Go, and image captioning.

Atari Games Image Captioning +1

Deep Convolutional Neural Networks Based on Semi-Discrete Frames

no code implementations21 Apr 2015 Thomas Wiatowski, Helmut Bölcskei

Our generalized feature extractor is proven to be translation-invariant, and we develop deformation stability results for a larger class of deformations than those considered by Mallat.

Translation

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