Efficient Deployment of Spiking Neural Networks on SpiNNaker2 for DVS Gesture Recognition Using Neuromorphic Intermediate Representation
Research output: Contribution to book/Conference proceedings/Anthology/Report › Conference contribution › Contributed › peer-review
Contributors
Abstract
Spiking Neural Networks (SNNs) are highly energy-efficient during inference, making them particularly suitable for deployment on neuromorphic hardware. Their ability to process event-driven inputs, such as data from dynamic vision sensors (DVS), further enhances their applicability to edge computing tasks. However, the resource constraints of edge hardware necessitate techniques like weight quantization, which reduce the memory footprint of SNNs while preserving accuracy. Despite its importance, existing quantization methods typically focus on synaptic weights quantization without taking account of other critical parameters, such as scaling neuron firing thresholds.To address this limitation, we present the first benchmark for the DVS gesture recognition task using SNNs optimized for the many-core neuromorphic chip SpiNNaker2. Our study evaluates two quantization pipelines for fixed-point computations. The first approach employs post training quantization (PTQ) with percentile-based threshold scaling, while the second uses quantization aware training (QAT) with adaptive threshold scaling. Both methods achieve accurate 8-bit on-chip inference, closely approximating 32-bit floating-point performance. Additionally, our baseline SNNs perform competitively against previously reported results without specialized techniques. These models are deployed on SpiNNaker2 using the neuromorphic intermediate representation (NIR). Ultimately, we achieve 94.13% classification accuracy on-chip, demonstrating the SpiNNaker2's potential for efficient, low-energy neuromorphic computing.
Details
| Original language | English |
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| Title of host publication | IEEE Neuro-Inspired Computational Elements, NICE 2025 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| Number of pages | 8 |
| ISBN (electronic) | 979-8-3315-0302-4 |
| Publication status | E-pub ahead of print - Jul 2025 |
| Peer-reviewed | Yes |
Publication series
| Series | Neuro Inspired Computational Elements Conference (NICE) |
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Conference
| Title | 12th Annual IEEE Neuro-Inspired Computational Elements |
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| Abbreviated title | NICE 2025 |
| Conference number | 12 |
| Duration | 25 - 28 March 2025 |
| Website | |
| Location | Ruprecht-Karls-Universität Heidelberg |
| City | Heidelberg |
| Country | Germany |
External IDs
| ORCID | /0000-0002-6286-5064/work/189287311 |
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Keywords
ASJC Scopus subject areas
Keywords
- Gesture recognition, Neuromorphic intermediate representation, Quantization, Spiking neural networks, SpiNNaker2