An FPGA implementation of an event-driven unsupervised feature extraction algorithm for pattern recognition

Philip C. Jose, Ying Xu, André Van Schaik, Runchun Wang

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

2 Citations (Scopus)

Abstract

This paper presents the Field Programmable Gate Array (FPGA) implementation of an event-driven unsupervised Feature Extraction using Adaptive Selection Thresholds (FEAST) algorithm for pattern recognition tasks. The novelty of the design lies in splitting the FEAST learning rule into two different sets of tasks and executing them independently in a time-multiplexed fashion, using a minimum number of hardware resources. The proposed hardware architecture, operated at 200 MHz clock frequency, can process 183 × 103 events/sec in training mode and 196×103 events/sec in inference mode. The FEAST hardware model was tested with the Poker DVS dataset, obtaining a test accuracy of 95%.
Original languageEnglish
Title of host publicationISCAS 2024: IEEE International Symposium on Circuits and Systems, May 19-22, 2024, Singapore
Place of PublicationU.S.
PublisherIEEE
Number of pages5
ISBN (Electronic)9798350330991
DOIs
Publication statusPublished - 2024
Event2024 IEEE International Symposium on Circuits and Systems, ISCAS 2024 - Singapore, Singapore
Duration: 19 May 202422 May 2024

Conference

Conference2024 IEEE International Symposium on Circuits and Systems, ISCAS 2024
Country/TerritorySingapore
CitySingapore
Period19/05/2422/05/24

Keywords

  • event-based feature extraction
  • FPGA
  • neuromorphic engineering
  • time surface

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