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Publications [#280514] of David J. Brady

Papers Published

  1. Zheng, Y; Brady, DJ; Sullivan, ME; Guenther, BD, Fiber-optic localization by geometric space coding with a two-dimensional gray code., Applied Optics, vol. 44 no. 20 (July, 2005), pp. 4306-4314, ISSN 0003-6935 [16045218], [doi]
    (last updated on 2019/11/14)

    Abstract:
    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.

    Keywords:
    Fiber optics;Image coding;Computational geometry;Binary codes;Cost effectiveness;Data communication equipment;