Search Results for author: Tim Fingscheidt

Found 46 papers, 15 papers with code

Efficient High-Performance Bark-Scale Neural Network for Residual Echo and Noise Suppression

no code implementations8 Apr 2024 Ernst Seidel, Pejman Mowlaee, Tim Fingscheidt

In recent years, the introduction of neural networks (NNs) into the field of speech enhancement has brought significant improvements.

Speech Enhancement

Employing Real Training Data for Deep Noise Suppression

no code implementations5 Sep 2023 Ziyi Xu, Marvin Sach, Jan Pirklbauer, Tim Fingscheidt

It provides a reference-free perceptual loss for employing real data during DNS training, maximizing the PESQ scores.

A Re-Parameterized Vision Transformer (ReVT) for Domain-Generalized Semantic Segmentation

1 code implementation25 Aug 2023 Jan-Aike Termöhlen, Timo Bartels, Tim Fingscheidt

We present a new augmentation-driven approach to domain generalization for semantic segmentation using a re-parameterized vision transformer (ReVT) with weight averaging of multiple models after training.

Domain Generalization Segmentation +1

Efficient Acoustic Echo Suppression with Condition-Aware Training

no code implementations28 Jul 2023 Ernst Seidel, Pejman Mowlaee, Tim Fingscheidt

The topic of deep acoustic echo control (DAEC) has seen many approaches with various model topologies in recent years.

DNN-Based Map Deviation Detection in LiDAR Point Clouds

1 code implementation Open Journal on ITS 2023 Christopher Plachetka, Benjamin Sertolli, Jenny Fricke, Marvin Klingner, Tim Fingscheidt

In this work we present a novel deep learning-based approach to detect and specify map deviations in erroneous or outdated high-definition (HD) maps using both sensor and map data as input to a deep neural network (DNN).

object-detection Object Detection

EffCRN: An Efficient Convolutional Recurrent Network for High-Performance Speech Enhancement

no code implementations5 Jun 2023 Marvin Sach, Jan Franzen, Bruno Defraene, Kristoff Fluyt, Maximilian Strake, Wouter Tirry, Tim Fingscheidt

By applying a number of topological changes at once, we propose both an efficient FCRN (FCRN15), and a new family of efficient convolutional recurrent neural networks (EffCRN23, EffCRN23lite).

Speech Enhancement

Survey on Unsupervised Domain Adaptation for Semantic Segmentation for Visual Perception in Automated Driving

no code implementations24 Apr 2023 Manuel Schwonberg, Joshua Niemeijer, Jan-Aike Termöhlen, Jörg P. Schäfer, Nico M. Schmidt, Hanno Gottschalk, Tim Fingscheidt

DNNs play a significant role in environment perception for the challenging application of automated driving and are employed for tasks such as detection, semantic segmentation, and sensor fusion.

Semantic Segmentation Sensor Fusion +1

Coded Speech Quality Measurement by a Non-Intrusive PESQ-DNN

1 code implementation18 Apr 2023 Ziyi Xu, Ziyue Zhao, Tim Fingscheidt

We illustrate the potential of this model by predicting the PESQ scores of wideband-coded speech obtained from AMR-WB or EVS codecs operating at different bitrates in noisy, tandeming, and error-prone transmission conditions.

Relaxed Attention for Transformer Models

1 code implementation20 Sep 2022 Timo Lohrenz, Björn Möller, Zhengyang Li, Tim Fingscheidt

The powerful modeling capabilities of all-attention-based transformer architectures often cause overfitting and - for natural language processing tasks - lead to an implicitly learned internal language model in the autoregressive transformer decoder complicating the integration of external language models.

Ranked #3 on Lipreading on LRS3-TED (using extra training data)

Image Classification Language Modelling +3

Amodal Cityscapes: A New Dataset, its Generation, and an Amodal Semantic Segmentation Challenge Baseline

1 code implementation1 Jun 2022 Jasmin Breitenstein, Tim Fingscheidt

In this paper, we consider the task of amodal semantic segmentation and propose a generic way to generate datasets to train amodal semantic segmentation methods.

Segmentation Semantic Segmentation

On the Choice of Data for Efficient Training and Validation of End-to-End Driving Models

no code implementations1 Jun 2022 Marvin Klingner, Konstantin Müller, Mona Mirzaie, Jasmin Breitenstein, Jan-Aike Termöhlen, Tim Fingscheidt

The emergence of data-driven machine learning (ML) has facilitated significant progress in many complicated tasks such as highly-automated driving.

Bandwidth-Scalable Fully Mask-Based Deep FCRN Acoustic Echo Cancellation and Postfiltering

no code implementations9 May 2022 Ernst Seidel, Rasmus Kongsgaard Olsson, Karim Haddad, Zhengyang Li, Pejman Mowlaee, Tim Fingscheidt

Although today's speech communication systems support various bandwidths from narrowband to super-wideband and beyond, state-of-the art DNN methods for acoustic echo cancellation (AEC) are lacking modularity and bandwidth scalability.

Acoustic echo cancellation Bandwidth Extension

Does a PESQNet (Loss) Require a Clean Reference Input? The Original PESQ Does, But ACR Listening Tests Don't

no code implementations4 May 2022 Ziyi Xu, Maximilian Strake, Tim Fingscheidt

Detailed analyses show that the DNS trained with the MF-intrusive PESQNet outperforms the Interspeech 2021 DNS Challenge baseline and the same DNS trained with an MSE loss by 0. 23 and 0. 12 PESQ points, respectively.

Continual BatchNorm Adaptation (CBNA) for Semantic Segmentation

1 code implementation2 Mar 2022 Marvin Klingner, Mouadh Ayache, Tim Fingscheidt

In this work, we further expand a source-free UDA approach to a continual and therefore online-capable UDA on a single-image basis for semantic segmentation.

Autonomous Driving Semantic Segmentation +1

Detecting Adversarial Perturbations in Multi-Task Perception

1 code implementation2 Mar 2022 Marvin Klingner, Varun Ravi Kumar, Senthil Yogamani, Andreas Bär, Tim Fingscheidt

In this paper, we (i) propose a novel adversarial perturbation detection scheme based on multi-task perception of complex vision tasks (i. e., depth estimation and semantic segmentation).

Adversarial Attack Depth Estimation +1

Improving Performance of Semantic Segmentation CycleGANs by Noise Injection into the Latent Segmentation Space

no code implementations17 Jan 2022 Jonas Löhdefink, Tim Fingscheidt

The proposed methodology allows to achieve an mIoU improvement on the Cityscapes validation set of 5. 7% absolute over the same CycleGAN without noise injection, and still an absolute 4. 9% over the ERFNet non-cyclic baseline.

Image Reconstruction Quantization +2

Reconfigurable Intelligent Surface Enabled Spatial Multiplexing with Fully Convolutional Network

no code implementations8 Jan 2022 Bile Peng, Jan-Aike Termöhlen, Cong Sun, Danping He, Ke Guan, Tim Fingscheidt, Eduard A. Jorswieck

The rectangular shape of the RIS and the spatial correlation of channels with adjacent RIS antennas due to the short distance between them encourage us to apply it for the RIS configuration.

Semantic Segmentation

Description of Corner Cases in Automated Driving: Goals and Challenges

no code implementations20 Sep 2021 Daniel Bogdoll, Jasmin Breitenstein, Florian Heidecker, Maarten Bieshaar, Bernhard Sick, Tim Fingscheidt, J. Marius Zöllner

Scaling the distribution of automated vehicles requires handling various unexpected and possibly dangerous situations, termed corner cases (CC).

Deep Residual Echo Suppression and Noise Reduction: A Multi-Input FCRN Approach in a Hybrid Speech Enhancement System

no code implementations6 Aug 2021 Jan Franzen, Tim Fingscheidt

Deep neural network (DNN)-based approaches to acoustic echo cancellation (AEC) and hybrid speech enhancement systems have gained increasing attention recently, introducing significant performance improvements to this research field.

Acoustic echo cancellation Speech Enhancement

Improving Online Performance Prediction for Semantic Segmentation

no code implementations12 Apr 2021 Marvin Klingner, Andreas Bär, Marcel Mross, Tim Fingscheidt

In this work we address the task of observing the performance of a semantic segmentation deep neural network (DNN) during online operation, i. e., during inference, which is of high importance in safety-critical applications such as autonomous driving.

Autonomous Driving Monocular Depth Estimation +2

Multi-Encoder Learning and Stream Fusion for Transformer-Based End-to-End Automatic Speech Recognition

no code implementations31 Mar 2021 Timo Lohrenz, Zhengyang Li, Tim Fingscheidt

Stream fusion, also known as system combination, is a common technique in automatic speech recognition for traditional hybrid hidden Markov model approaches, yet mostly unexplored for modern deep neural network end-to-end model architectures.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +2

Y$^2$-Net FCRN for Acoustic Echo and Noise Suppression

no code implementations31 Mar 2021 Ernst Seidel, Jan Franzen, Maximilian Strake, Tim Fingscheidt

The proposed models achieved remarkable performance for the separate tasks of AEC and residual echo suppression (RES).

Acoustic echo cancellation

Deep Noise Suppression With Non-Intrusive PESQNet Supervision Enabling the Use of Real Training Data

no code implementations31 Mar 2021 Ziyi Xu, Maximilian Strake, Tim Fingscheidt

During the training process, most of the speech enhancement neural networks are trained in a fully supervised way with losses requiring noisy speech to be synthesized by clean speech and additive noise.

Denoising Speech Enhancement

AEC in a NetShell: On Target and Topology Choices for FCRN Acoustic Echo Cancellation

no code implementations16 Mar 2021 Jan Franzen, Ernst Seidel, Tim Fingscheidt

Acoustic echo cancellation (AEC) algorithms have a long-term steady role in signal processing, with approaches improving the performance of applications such as automotive hands-free systems, smart home and loudspeaker devices, or web conference systems.

Acoustic echo cancellation

Corner Cases for Visual Perception in Automated Driving: Some Guidance on Detection Approaches

no code implementations11 Feb 2021 Jasmin Breitenstein, Jan-Aike Termöhlen, Daniel Lipinski, Tim Fingscheidt

Hence, their detection is highly safety-critical, and detection methods can be applied to vast amounts of collected data to select suitable training data.

Autonomous Driving

Unsupervised BatchNorm Adaptation (UBNA): A Domain Adaptation Method for Semantic Segmentation Without Using Source Domain Representations

2 code implementations17 Nov 2020 Marvin Klingner, Jan-Aike Termöhlen, Jacob Ritterbach, Tim Fingscheidt

In this paper we present a solution to the task of "unsupervised domain adaptation (UDA) of a given pre-trained semantic segmentation model without relying on any source domain representations".

Segmentation Semantic Segmentation +1

Transferable Universal Adversarial Perturbations Using Generative Models

no code implementations28 Oct 2020 Atiye Sadat Hashemi, Andreas Bär, Saeed Mozaffari, Tim Fingscheidt

Using our generated non-targeted UAPs, we obtain an average fooling rate of 93. 36% on the source models (state of the art: 82. 16%).

openDD: A Large-Scale Roundabout Drone Dataset

1 code implementation16 Jul 2020 Antonia Breuer, Jan-Aike Termöhlen, Silviu Homoceanu, Tim Fingscheidt

Analyzing and predicting the traffic scene around the ego vehicle has been one of the key challenges in autonomous driving.

Autonomous Driving

Self-Supervised Monocular Depth Estimation: Solving the Dynamic Object Problem by Semantic Guidance

1 code implementation ECCV 2020 Marvin Klingner, Jan-Aike Termöhlen, Jonas Mikolajczyk, Tim Fingscheidt

Self-supervised monocular depth estimation presents a powerful method to obtain 3D scene information from single camera images, which is trainable on arbitrary image sequences without requiring depth labels, e. g., from a LiDAR sensor.

Monocular Depth Estimation Semantic Segmentation

Class-Incremental Learning for Semantic Segmentation Re-Using Neither Old Data Nor Old Labels

1 code implementation12 May 2020 Marvin Klingner, Andreas Bär, Philipp Donn, Tim Fingscheidt

While neural networks trained for semantic segmentation are essential for perception in autonomous driving, most current algorithms assume a fixed number of classes, presenting a major limitation when developing new autonomous driving systems with the need of additional classes.

Autonomous Driving Class Incremental Learning +3

Improved Noise and Attack Robustness for Semantic Segmentation by Using Multi-Task Training with Self-Supervised Depth Estimation

no code implementations23 Apr 2020 Marvin Klingner, Andreas Bär, Tim Fingscheidt

We show the effectiveness of our method on the Cityscapes dataset, where our multi-task training approach consistently outperforms the single-task semantic segmentation baseline in terms of both robustness vs. noise and in terms of adversarial attacks, without the need for depth labels in training.

Monocular Depth Estimation Segmentation +1

A Perceptual Weighting Filter Loss for DNN Training in Speech Enhancement

1 code implementation23 May 2019 Ziyue Zhao, Samy Elshamy, Tim Fingscheidt

Single-channel speech enhancement with deep neural networks (DNNs) has shown promising performance and is thus intensively being studied.

Speech Enhancement

Towards Corner Case Detection for Autonomous Driving

no code implementations25 Feb 2019 Jan-Aike Bolte, Andreas Bär, Daniel Lipinski, Tim Fingscheidt

The progress in autonomous driving is also due to the increased availability of vast amounts of training data for the underlying machine learning approaches.

Anomaly Detection Autonomous Driving +1

Convolutional Neural Networks to Enhance Coded Speech

1 code implementation25 Jun 2018 Ziyue Zhao, Huijun Liu, Tim Fingscheidt

Enhancing coded speech suffering from far-end acoustic background noise, quantization noise, and potentially transmission errors, is a challenging task.

Quantization

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