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Sensors 2012, 12(4), 4133-4155; doi:10.3390/s120404133

Differential Binary Encoding Method for Calibrating Image Sensors Based on IOFBs

1
Department of Electronics, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain
2
Department of Telecommunications and Electronics, University of Oriente, Santiago de Cuba, 90400, Cuba
*
Author to whom correspondence should be addressed.
Received: 3 February 2012 / Revised: 20 March 2012 / Accepted: 22 March 2012 / Published: 27 March 2012
(This article belongs to the Section Physical Sensors)
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Abstract

Image transmission using incoherent optical fiber bundles (IOFBs) requires prior calibration to obtain the spatial in-out fiber correspondence necessary to reconstruct the image captured by the pseudo-sensor. This information is recorded in a Look-Up Table called the Reconstruction Table (RT), used later for reordering the fiber positions and reconstructing the original image. This paper presents a very fast method based on image-scanning using spaces encoded by a weighted binary code to obtain the in-out correspondence. The results demonstrate that this technique yields a remarkable reduction in processing time and the image reconstruction quality is very good compared to previous techniques based on spot or line scanning, for example.
Keywords: image sensor; image transmission; sensor calibration; optical fiber sensors image sensor; image transmission; sensor calibration; optical fiber sensors
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MDPI and ACS Style

Fernández, P.R.; Lázaro-Galilea, J.L.; Gardel, A.; Espinosa, F.; Bravo, I.; Cano, Á. Differential Binary Encoding Method for Calibrating Image Sensors Based on IOFBs. Sensors 2012, 12, 4133-4155.

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