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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 9 — Aug. 28, 2012

Efficient distributed control of light-emitting diode array lighting systems

Jianfei Dong and Ashish Pandharipande  »View Author Affiliations

Optics Letters, Vol. 37, Issue 14, pp. 2910-2912 (2012)

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We consider illumination rendering with distributed control of a lighting system with an array of light-emitting diodes (LEDs). As low-cost microprocessors become standard components in LED drivers, distributing the computation of the control signals to individual LED drivers becomes attractive. Common distributed control algorithms require each individual controller to exchange information with all the others and process it. This incurs too large a communication and processing overhead for a low-cost local controller. In this Letter, we propose a distributed control algorithm for achieving global illumination rendering, wherein a controller only needs to communicate within a selected neighborhood. We present design criteria for defining the communication neighborhood and study its impact on rendering performance.

© 2012 Optical Society of America

OCIS Codes
(150.2950) Machine vision : Illumination
(230.3670) Optical devices : Light-emitting diodes
(330.5000) Vision, color, and visual optics : Vision - patterns and recognition
(220.2945) Optical design and fabrication : Illumination design

ToC Category:
Optical Devices

Original Manuscript: April 13, 2012
Revised Manuscript: June 1, 2012
Manuscript Accepted: June 1, 2012
Published: July 12, 2012

Virtual Issues
Vol. 7, Iss. 9 Virtual Journal for Biomedical Optics

Jianfei Dong and Ashish Pandharipande, "Efficient distributed control of light-emitting diode array lighting systems," Opt. Lett. 37, 2910-2912 (2012)

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