{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,14]],"date-time":"2026-03-14T00:53:43Z","timestamp":1773449623619,"version":"3.50.1"},"reference-count":19,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2015,7,8]],"date-time":"2015-07-08T00:00:00Z","timestamp":1436313600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>An innovative insect-based visual sensor is designed to perform active marker tracking. Without any optics and a field-of-view of about 60\u00b0, 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 (&gt;1 kHz) with a precision of 0.5\u00b0. 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.<\/jats:p>","DOI":"10.3390\/s150716484","type":"journal-article","created":{"date-parts":[[2015,7,8]],"date-time":"2015-07-08T10:10:02Z","timestamp":1436350202000},"page":"16484-16502","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["HyperCube: A Small Lensless Position Sensing Device for the Tracking of Flickering Infrared LEDs"],"prefix":"10.3390","volume":"15","author":[{"given":"Thibaut","family":"Raharijaona","sequence":"first","affiliation":[{"name":"Aix-Marseille Universit\u00e9, ISM UMR 7287, 13288, Marseille Cedex 09, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul","family":"Mignon","sequence":"additional","affiliation":[{"name":"Aix-Marseille Universit\u00e9, ISM UMR 7287, 13288, Marseille Cedex 09, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rapha\u00ebl","family":"Juston","sequence":"additional","affiliation":[{"name":"Aix-Marseille Universit\u00e9, ISM UMR 7287, 13288, Marseille Cedex 09, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lubin","family":"Kerhuel","sequence":"additional","affiliation":[{"name":"Aix-Marseille Universit\u00e9, ISM UMR 7287, 13288, Marseille Cedex 09, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"St\u00e9phane","family":"Viollet","sequence":"additional","affiliation":[{"name":"Aix-Marseille Universit\u00e9, ISM UMR 7287, 13288, Marseille Cedex 09, France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,7,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Breitenmoser, A., Kneip, L., and Siegwart, R. (2011, January 25\u201330). A monocular vision-based system for 6D relative robot localization. San Francisco, CA, USA.","DOI":"10.1109\/IROS.2011.6094851"},{"key":"ref_2","unstructured":"Audette, R., Balthazaar, J., Dunk, C., and Zelek, J. (2000). A Stereo-Vision System for the Visually Impaired, University of Guelph."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1007\/s00371-006-0032-4","article-title":"Wearable system for mobility improvement of visually impaired people","volume":"23","author":"Cardin","year":"2006","journal-title":"Vis. Comp. J."},{"key":"ref_4","unstructured":"Ijaz, F., Yang, H.K., Ahmad, A., and Lee, C. (2013, January 27\u201330). Indoor positioning: A review of indoor ultrasonic positioning systems. PyeongChang, Korea."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Aloui, N., Raoof, K., Bouallegue, A., Letourneur, S., and Zaibi, S. (2014). Performance evaluation of an acoustic indoor localization system based on a fingerprinting technique. EURASIP J. Adv. Signal Process., 2014.","DOI":"10.1186\/1687-6180-2014-13"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1131","DOI":"10.1109\/JSEN.2011.2166760","article-title":"Vision tape\u2014A flexible compound camera for motion detection and proximity estimation","volume":"12","author":"Dobrzynski","year":"2012","journal-title":"IEEE Sens. J."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"9267","DOI":"10.1073\/pnas.1219068110","article-title":"Miniature curved artificial compound eyes","volume":"110","author":"Floreano","year":"2013","journal-title":"Proc. Natl. Acad. Sci. USA"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Censi, A., Strubel, J., Brandli, C., Delbruck, T., and Scaramuzza, D. (2013, January 3\u20137). Low-latency localization by active LED markers tracking using a dynamic vision sensor. Tokyo, Japan.","DOI":"10.1109\/IROS.2013.6696456"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"566","DOI":"10.1109\/JSSC.2007.914337","article-title":"A 128\u00d7 128 120 dB 15 \u03bc s latency asynchronous temporal contrast vision sensor","volume":"43","author":"Lichtsteiner","year":"2008","journal-title":"IEEE J. Sol. State Circuits"},{"key":"ref_10","unstructured":"Faessler, M., Mueggler, E., Schwabe, K., and Scaramuzza, D. (June, January 31). A monocular pose estimation system based on Infrared LEDs. Hong Kong, China."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"5","DOI":"10.1007\/s10514-012-9277-0","article-title":"3-D relative positioning sensor for indoor flying robots","volume":"33","author":"Roberts","year":"2012","journal-title":"Auton. Robots"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Wenzel, K., Masselli, A., and Zell, A. Visual tracking and following of a quadrocopter by another quadrocopter. 4993\u20134998.","DOI":"10.1109\/IROS.2012.6385635"},{"key":"ref_13","unstructured":"Etter, W., Martin, P., and Mangharam, R. (2011, January 11\u201312). Cooperative flight guidance of autonomous unmanned aerial vehicles. Chicago, IL, USA."},{"key":"ref_14","unstructured":"Masselli, A., and Zell, A. (2012, January 3\u20136). A novel marker based tracking method for position and attitude control of MAVs. Braunschweig, Germany."},{"key":"ref_15","unstructured":"Westheimer, G. (1981). Progress in Sensory Physiology, Springer."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"315","DOI":"10.1109\/JSEN.2011.2129505","article-title":"The VODKA sensor: A bio-inspired hyperacute optical position sensing device","volume":"12","author":"Kerhuel","year":"2012","journal-title":"IEEE Sens. J."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1025","DOI":"10.1109\/TMECH.2013.2265983","article-title":"Hyperacute edge and bar detection in a bioinspired optical position sensing device","volume":"19","author":"Juston","year":"2013","journal-title":"IEEE\/ASME Trans. Mechatron."},{"key":"ref_18","first-page":"77","article-title":"Optomotorische Untersuchung des visuellen Systems einiger Augenmutanten der Fruchtfliege","volume":"2","year":"1964","journal-title":"Drosophila. Biol. Cybern."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"189","DOI":"10.1007\/s00359-003-0390-6","article-title":"Angular and spectral sensitivity of fly photoreceptors. II. dependence on facet lens F-number and rhabdomere type in Drosophila","volume":"189","author":"Stavenga","year":"2003","journal-title":"J. Comp. Phys. 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