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HyperCube: A Small Lensless Position Sensing Device for the Tracking of Flickering Infrared LEDs

Aix-Marseille Université, ISM UMR 7287, 13288, Marseille Cedex 09, France
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M.N. Passaro
Sensors 2015, 15(7), 16484-16502;
Received: 30 March 2015 / Revised: 28 May 2015 / Accepted: 2 July 2015 / Published: 8 July 2015
(This article belongs to the Special Issue Frontiers in Infrared Photodetection)
PDF [4319 KB, uploaded 8 July 2015]


An innovative insect-based visual sensor is designed to perform active marker tracking. Without any optics and a field-of-view of about 60°, a novel miniature visual sensor is able to locate flickering markers (LEDs) with an accuracy much greater than the one dictated by the pixel pitch. With a size of only 1 cm3 and a mass of only 0.33 g, the lensless sensor, called HyperCube, is dedicated to 3D motion tracking and fits perfectly with the drastic constraints imposed by micro-aerial vehicles. Only three photosensors are placed on each side of the cubic configuration of the sensing device, making this sensor very inexpensive and light. HyperCube provides the azimuth and elevation of infrared LEDs flickering at a high frequency (>1 kHz) with a precision of 0.5°. The minimalistic design in terms of small size, low mass and low power consumption of this visual sensor makes it suitable for many applications in the field of the cooperative flight of unmanned aerial vehicles and, more generally, robotic applications requiring active beacons. Experimental results show that HyperCube provides useful angular measurements that can be used to estimate the relative position between the sensor and the flickering infrared markers. View Full-Text
Keywords: infrared sensing; visual motion; photodetector; motion tracking; mobile robots infrared sensing; visual motion; photodetector; motion tracking; mobile robots
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Raharijaona, T.; Mignon, P.; Juston, R.; Kerhuel, L.; Viollet, S. HyperCube: A Small Lensless Position Sensing Device for the Tracking of Flickering Infrared LEDs. Sensors 2015, 15, 16484-16502.

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