On the detection of tracks in spectrogram images

  • Authors:
  • Thomas A. Lampert;Simon E. M. O'Keefe

  • Affiliations:
  • Department of Computer Science, University of York, Deramore Lane, York YO10 5GH, UK;Department of Computer Science, University of York, Deramore Lane, York YO10 5GH, UK

  • Venue:
  • Pattern Recognition
  • Year:
  • 2013

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Abstract

This paper proposes an active contour algorithm for spectrogram track detection. It extends upon previously published work in a number of areas, previously published internal and potential energy models are refined and theoretical motivations for these changes are offered. These refinements offer a marked improvement in detection performance, including a notable reduction in the probability of false positive detections. The result is feature extraction at signal-to-noise ratios as low as -1dB in the frequency domain. These theoretical and experimental findings are related to existing solutions to the problem, offering a new insight into their limitations. We show, through complexity analysis, that this is achievable in real-time.