Search Results for author: Ali Safa

Found 9 papers, 1 papers with code

Towards Chip-in-the-loop Spiking Neural Network Training via Metropolis-Hastings Sampling

no code implementations9 Feb 2024 Ali Safa, Vikrant Jaltare, Samira Sebt, Kameron Gano, Johannes Leugering, Georges Gielen, Gert Cauwenberghs

Our results show that the proposed approach strongly outperforms the use of backprop by up to $27\%$ higher accuracy when subject to strong hardware non-idealities.

Resource-Efficient Gesture Recognition using Low-Resolution Thermal Camera via Spiking Neural Networks and Sparse Segmentation

no code implementations12 Jan 2024 Ali Safa, Wout Mommen, Lars Keuninckx

This work proposes a novel approach for hand gesture recognition using an inexpensive, low-resolution (24 x 32) thermal sensor processed by a Spiking Neural Network (SNN) followed by Sparse Segmentation and feature-based gesture classification via Robust Principal Component Analysis (R-PCA).

Hand Gesture Recognition Hand-Gesture Recognition

Active Inference in Hebbian Learning Networks

no code implementations8 Jun 2023 Ali Safa, Tim Verbelen, Lars Keuninckx, Ilja Ocket, André Bourdoux, Francky Catthoor, Georges Gielen, Gert Cauwenberghs

This work studies how brain-inspired neural ensembles equipped with local Hebbian plasticity can perform active inference (AIF) in order to control dynamical agents.

OpenAI Gym Q-Learning

Open the box of digital neuromorphic processor: Towards effective algorithm-hardware co-design

no code implementations27 Mar 2023 Guangzhi Tang, Ali Safa, Kevin Shidqi, Paul Detterer, Stefano Traferro, Mario Konijnenburg, Manolis Sifalakis, Gert-Jan van Schaik, Amirreza Yousefzadeh

In this work, we open the black box of the digital neuromorphic processor for algorithm designers by presenting the neuron processing instruction set and detailed energy consumption of the SENeCA neuromorphic architecture.

Benchmarking Edge-computing

Fusing Event-based Camera and Radar for SLAM Using Spiking Neural Networks with Continual STDP Learning

no code implementations9 Oct 2022 Ali Safa, Tim Verbelen, Ilja Ocket, André Bourdoux, Hichem Sahli, Francky Catthoor, Georges Gielen

This work proposes a first-of-its-kind SLAM architecture fusing an event-based camera and a Frequency Modulated Continuous Wave (FMCW) radar for drone navigation.

Drone navigation Loop Closure Detection

Continuously Learning to Detect People on the Fly: A Bio-inspired Visual System for Drones

no code implementations16 Feb 2022 Ali Safa, Ilja Ocket, André Bourdoux, Hichem Sahli, Francky Catthoor, Georges Gielen

This paper demonstrates for the first time that a biologically-plausible spiking neural network (SNN) equipped with Spike-Timing-Dependent Plasticity (STDP) can continuously learn to detect walking people on the fly using retina-inspired, event-based cameras.

A New Look at Spike-Timing-Dependent Plasticity Networks for Spatio-Temporal Feature Learning

no code implementations1 Nov 2021 Ali Safa, Ilja Ocket, André Bourdoux, Hichem Sahli, Francky Catthoor, Georges Gielen

We present new theoretical foundations for unsupervised Spike-Timing-Dependent Plasticity (STDP) learning in spiking neural networks (SNNs).

Fail-Safe Human Detection for Drones Using a Multi-Modal Curriculum Learning Approach

no code implementations28 Sep 2021 Ali Safa, Tim Verbelen, Ilja Ocket, André Bourdoux, Francky Catthoor, Georges G. E. Gielen

Currently however, people detection systems used on drones are solely based on standard cameras besides an emerging number of works discussing the fusion of imaging and event-based cameras.

Edge-computing Human Detection

A 2-$μ$J, 12-class, 91% Accuracy Spiking Neural Network Approach For Radar Gesture Recognition

1 code implementation5 Aug 2021 Ali Safa, André Bourdoux, Ilja Ocket, Francky Catthoor, Georges G. E. Gielen

Radar processing via spiking neural networks (SNNs) has recently emerged as a solution in the field of ultra-low-power wireless human-computer interaction.

Gesture Recognition

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