Search Results for author: Gernot A. Fink

Found 19 papers, 3 papers with code

Multi-Channel Time-Series Person and Soft-Biometric Identification

no code implementations4 Apr 2023 Nilah Ravi Nair, Fernando Moya Rueda, Christopher Reining, Gernot A. Fink

On-body device (OBD) recordings of human movements are often preferred for HAR applications not only for their reliability but as an approach for identity protection, e. g., in industrial settings.

Attribute Human Activity Recognition +2

Dataset Bias in Human Activity Recognition

no code implementations19 Jan 2023 Nilah Ravi Nair, Lena Schmid, Fernando Moya Rueda, Markus Pauly, Gernot A. Fink, Christopher Reining

It is unknown what physical characteristics and/or soft-biometrics, such as age, height, and weight, need to be taken into account to train a classifier to achieve robustness towards heterogeneous populations in the training and testing data.

Human Activity Recognition Time Series +1

Video-based Pose-Estimation Data as Source for Transfer Learning in Human Activity Recognition

no code implementations2 Dec 2022 Shrutarv Awasthi, Fernando Moya Rueda, Gernot A. Fink

HAR is challenging due to the inter and intra-variance of human movements; moreover, annotated datasets from on-body devices are scarce.

Human Activity Recognition Pose Estimation +1

Self-Training of Handwritten Word Recognition for Synthetic-to-Real Adaptation

no code implementations7 Jun 2022 Fabian Wolf, Gernot A. Fink

Performances of Handwritten Text Recognition (HTR) models are largely determined by the availability of labeled and representative training samples.

Handwritten Text Recognition HTR

Recognition-free Question Answering on Handwritten Document Collections

no code implementations12 Feb 2022 Oliver Tüselmann, Friedrich Müller, Fabian Wolf, Gernot A. Fink

In recent years, considerable progress has been made in the research area of Question Answering (QA) on document images.

Question Answering Retrieval

UQGAN: A Unified Model for Uncertainty Quantification of Deep Classifiers trained via Conditional GANs

1 code implementation31 Jan 2022 Philipp Oberdiek, Gernot A. Fink, Matthias Rottmann

We present an approach to quantifying both aleatoric and epistemic uncertainty for deep neural networks in image classification, based on generative adversarial networks (GANs).

Out of Distribution (OOD) Detection Uncertainty Quantification

Detection and Retrieval of Out-of-Distribution Objects in Semantic Segmentation

1 code implementation14 May 2020 Philipp Oberdiek, Matthias Rottmann, Gernot A. Fink

When deploying deep learning technology in self-driving cars, deep neural networks are constantly exposed to domain shifts.

Dimensionality Reduction Image Retrieval +3

Exploring Confidence Measures for Word Spotting in Heterogeneous Datasets

no code implementations26 Mar 2019 Fabian Wolf, Philipp Oberdiek, Gernot A. Fink

In recent years, convolutional neural networks (CNNs) took over the field of document analysis and they became the predominant model for word spotting.

Attribute Retrieval

Exploring Architectures for CNN-Based Word Spotting

no code implementations28 Jun 2018 Eugen Rusakov, Sebastian Sudholt, Fabian Wolf, Gernot A. Fink

The goal in word spotting is to retrieve parts of document images which are relevant with respect to a certain user-defined query.

Attribute

Learning Attribute Representation for Human Activity Recognition

no code implementations2 Feb 2018 Fernando Moya Rueda, Gernot A. Fink

Attribute representations became relevant in image recognition and word spotting, providing support under the presence of unbalance and disjoint datasets.

Attribute Human Activity Recognition

Weakly Supervised Object Detection with Pointwise Mutual Information

no code implementations26 Jan 2018 Rene Grzeszick, Sebastian Sudholt, Gernot A. Fink

It is shown that the combination of pointwise mutual information and a cosine loss eases the learning process and thus improves the accuracy.

Object object-detection +1

Learning Deep Representations for Word Spotting Under Weak Supervision

no code implementations1 Dec 2017 Neha Gurjar, Sebastian Sudholt, Gernot A. Fink

Convolutional Neural Networks have made their mark in various fields of computer vision in recent years.

Word Spotting In Handwritten Documents

Neuron Pruning for Compressing Deep Networks using Maxout Architectures

no code implementations21 Jul 2017 Fernando Moya Rueda, Rene Grzeszick, Gernot A. Fink

Furthermore, it will be shown that neuron pruning can be combined with subsequent weight pruning, reducing the size of the LeNet-5 and VGG16 up to $92\%$ and $80\%$ respectively.

Face Verification Handwritten Digit Recognition

Weakly-supervised localization of diabetic retinopathy lesions in retinal fundus images

no code implementations29 Jun 2017 Waleed M. Gondal, Jan M. Köhler, René Grzeszick, Gernot A. Fink, Michael Hirsch

Although these approaches could help to build trust in the CNNs predictions, they are only slightly shown to work with medical image data which often poses a challenge as the decision for a class relies on different lesion areas scattered around the entire image.

General Classification Image Classification

Optimistic and Pessimistic Neural Networks for Scene and Object Recognition

no code implementations26 Sep 2016 Rene Grzeszick, Sebastian Sudholt, Gernot A. Fink

A novel method for adjusting the network's predictions based on uncertainty information is introduced.

Attribute Object Recognition

Zero-shot object prediction using semantic scene knowledge

no code implementations27 Apr 2016 Rene Grzeszick, Gernot A. Fink

This work focuses on the semantic relations between scenes and objects for visual object recognition.

Object Object Recognition

PHOCNet: A Deep Convolutional Neural Network for Word Spotting in Handwritten Documents

1 code implementation1 Apr 2016 Sebastian Sudholt, Gernot A. Fink

In recent years, deep convolutional neural networks have achieved state of the art performance in various computer vision task such as classification, detection or segmentation.

General Classification Word Spotting In Handwritten Documents

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