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 [16045218], [doi] .
   (last updated on 2023/06/01)

   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;