Fiber-optic localization by geometric space coding with a two-dimensional gray code.

Journal Article (Journal Article)

With the objective of monitoring motion within a room, we segment the two-dimensional (2D) floor space into discrete cells and encode each cell with a binary code word generated by a fiber. We design a set of k-neighbor-local codes to localize an extended object and, particularly when k = 2, employ a 2D gray code to localize a human by tracking his or her footsteps. Methods for implementing the codes in a fiber web are discussed, and we demonstrate the experimental result with the fiber mat. The observed system performance confirms the theoretical analysis. The space coding technique is a promising low-cost candidate not only for human tracking but also for other applications such as human gait analysis.

Full Text

Duke Authors

Cited Authors

  • Zheng, Y; Brady, DJ; Sullivan, ME; Guenther, BD

Published Date

  • July 2005

Published In

Volume / Issue

  • 44 / 20

Start / End Page

  • 4306 - 4314

PubMed ID

  • 16045218

Pubmed Central ID

  • 16045218

Electronic International Standard Serial Number (EISSN)

  • 1539-4522

International Standard Serial Number (ISSN)

  • 1559-128X

Digital Object Identifier (DOI)

  • 10.1364/ao.44.004306


  • eng