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ThinkMind // ACHI 2017, The Tenth International Conference on Advances in Computer-Human Interactions // View article achi_2017_6_40_20194


Identifying Inexpensive Off-the-Shelf Laser Pointers for Multi-User Interaction on Large Scale Displays

Authors:
Christopher Stuetzle
Barb Cutler
Tyler Sammann

Keywords: Systems, man, and cybernetics; User interfaces; Human-computer interaction

Abstract:
We present a method for identifying inexpensive, off-the-shelf laser pointers in a multi-user interaction environment on large-scale displays. We identify a laser pointer's personality, a measure of its output in a particular context. Our method requires a set of inexpensive and unmodified green lasers, a large screen, a projector, and a camera with an infrared (IR) filter. The camera detects the IR spillover from the green laser beam, while ignoring color information projected onto the screen. During a calibration phase, a radial histogram of each laser's IR spillover are used to represent the laser's personality. Our system is able to identify the spots of a specific laser, allowing multiple users to simultaneously interact in the environment. In addition, we present a series of applications that take advantage of tracked and identified laser pointers to demonstrate large-scale, multi-user interactions.

Pages: 150 to 153

Copyright: Copyright (c) IARIA, 2017

Publication date: March 19, 2017

Published in: conference

ISSN: 2308-4138

ISBN: 978-1-61208-538-8

Location: Nice, France

Dates: from March 19, 2017 to March 23, 2017

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