Efficient human pose tracking using multiplex sensing

John B. Burchett, Mohan Shankar, Steven D. Feller, David J. Brady

Research output: Contribution to journalConference articlepeer-review


We design and calibrate an efficient human detection system, capable of detecting and tracking a single person while minimizing the number of required sensors. Our infrared detectors have a 2 meter range and a 250ms rise/fall time. We sample their signal using an MSP430F149 microprocessor, correlate the results to reference patterns, and collect the binary decisions of each sensor on a workstation wirelessly. We modulate the optical field of the detectors by introducing selectively opaque reference structures into their optical path. Segmenting the physical space into signature cells enables direct measurement of source configuration. Brute force determination of the mapping is prohibitively expensive; we propose a method to estimate this mapping and predict signatures for every source position by observing signatures along prescribed tracks through the physical space.

Original languageEnglish (US)
Pages (from-to)418-426
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberPART 2
StatePublished - 2004
Externally publishedYes
EventSensors, and Command, Control, Communications, and Intelligence (C31) Technologies for Homeland Security and Homeland Defense III - Orlando, FL, United States
Duration: Apr 12 2004Apr 16 2004

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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