High-speed active head tracking system

V. Markov; S. A. Kupiec; A. Hastings; T. Hester

doi:10.1117/12.2040852

7 March 2014 High-speed active head tracking system

V. Markov, S. A. Kupiec, A. Hastings, T. Hester

Proceedings Volume 8979, Emerging Digital Micromirror Device Based Systems and Applications VI; 89790B (2014) https://doi.org/10.1117/12.2040852
Event: SPIE MOEMS-MEMS, 2014, San Francisco, California, United States

Abstract

We report on the development of a highly scalable head-tracking system capable of tracking many users. Throughout the operating area, a series of high-speed (4 kHz) near-infrared LED-based Digital Light Processor (DLP) picoprojectors provide overlapping illumination of the volume. Each projector outputs a sequence of binary images which encode the position of each pixel within the projected image as well as an identifier sequence for the projector. Overlapping projectors use differing temporal multiplexing to allow sensor discrimination and background rejection. Pixel positions from multiple projectors received by each sensor are triangulated to obtain position and orientation.

Citation Download Citation

V. Markov, S. A. Kupiec, A. Hastings, and T. Hester "High-speed active head tracking system", Proc. SPIE 8979, Emerging Digital Micromirror Device Based Systems and Applications VI, 89790B (7 March 2014); https://doi.org/10.1117/12.2040852

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