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Tobi Delbruck

11 accepted papers

2025

FPGA Hardware Neural Control of CartPole and F1TENTH Race Car

IROS 2025

Latency and computational cost often limit the use of Nonlinear Model Predictive Control (NMPC) in real-time robotics. To address this limitation, our work investigates FPGA-implemented Neural Controllers (NC) trained through supervised learning, mimicking NMPC. We show that inexpensive embedded FPG

Cited by 0SourcecodeScholar
2025

Modulating State Space Model with SlowFast Framework for Compute-Efficient Ultra Low-Latency Speech Enhancement

ICASSP 2025accepted

Deep learning-based speech enhancement (SE) methods often face significant computational challenges when needing to meet low-latency requirements because of the increased number of frames to be processed. This paper introduces the SlowFast framework which aims to reduce computation costs specificall…

Cited by 0SourceScholar
2025

Steering Prediction via a Multi-Sensor System for Autonomous Racing

ICRA 2025

Autonomous racing has rapidly gained research attention. Traditionally, racing cars rely on 2D LiDAR as their primary visual system. In this work, we explore the integration of an event camera with the existing system to provide enhanced temporal information. Our goal is to fuse the 2D LiDAR data wi

Cited by 2SourcecodeScholar
2024

Exploiting Symmetric Temporally Sparse BPTT for Efficient RNN Training

AAAI 2024technical

Recurrent Neural Networks (RNNs) are useful in temporal sequence tasks. However, training RNNs involves dense matrix multiplications which require hardware that can support a large number of arithmetic operations and memory accesses. Implementing online training of RNNs on the edge calls for optimiz…

Cited by 2SourcePDFScholar
2023

Deep Polarization Reconstruction With PDAVIS Events

CVPR 2023poster

The polarization event camera PDAVIS is a novel bio-inspired neuromorphic vision sensor that reports both conventional polarization frames and asynchronous, continuously per-pixel polarization brightness changes (polarization events) with fast temporal resolution and large dynamic range. A deep neur…

2023

RPGD: A Small-Batch Parallel Gradient Descent Optimizer with Explorative Resampling for Nonlinear Model Predictive Control

ICRA 2023poster

Nonlinear model predictive control often involves nonconvex optimization for which real-time control systems require fast and numerically stable solutions. This work proposes RPGD, a Resampling Parallel Gradient Descent optimizer designed to exploit small-batch parallelism of modern hardware like ne…

Cited by 8SourceScholar
2020

Learning to Exploit Multiple Vision Modalities by Using Grafted Networks

ECCV 2020poster

Novel vision sensors such as thermal, hyperspectral, polarization, and event cameras provide information that is not available from conventional intensity cameras. An obstacle to using these sensors with current powerful deep neural networks is the lack of large labeled training datasets. This paper…

Cited by 57SourcePDFScholar
2020

Recurrent Neural Network Control of a Hybrid Dynamical Transfemoral Prosthesis with EdgeDRNN Accelerator

ICRA 2020poster

Lower leg prostheses could improve the life quality of amputees by increasing comfort and reducing energy to locomote, but currently control methods are limited in modulating behaviors based upon the human's experience. This paper describes the first steps toward learning complex controllers for dyn…

Cited by 20SourceScholar
2019

EV-IMO: Motion Segmentation Dataset and Learning Pipeline for Event Cameras

IROS 2019poster

We present the first event-based learning approach for motion segmentation in indoor scenes and the first event-based dataset - EV-IMO- which includes accurate pixel-wise motion masks, egomotion and ground truth depth. Our approach is based on an efficient implementation of the SfM learning pipeline…

Cited by 121SourceScholar
2017

A Low Power, Fully Event-Based Gesture Recognition System

CVPR 2017poster

We present the first gesture recognition system implemented end-to-end on event-based hardware, using a TrueNorth neurosynaptic processor to recognize hand gestures in real-time at low power from events streamed live by a Dynamic Vision Sensor (DVS). The biologically inspired DVS transmits data only…

Cited by 1129PDFScholar
2017

Delta Networks for Optimized Recurrent Network Computation

ICML 2017poster

Many neural networks exhibit stability in their activation patterns over time in response to inputs from sensors operating under real-world conditions. By capitalizing on this property of natural signals, we propose a Recurrent Neural Network (RNN) architecture called a delta network in which each n…

Cited by 82SourcePDFScholar