Improving the Calibration of Image Sensors Based on IOFBs, Using Differential Gray-Code Space Encoding

This paper presents a fast calibration method to determine the transfer function for spatial correspondences in image transmission devices with <em>Incoherent</em><em> </em><em>Optical Fiber</em><em> &a...

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Bibliographic Details
Main Authors: Carlos Luna Vázquez, Ángel E. Cano García, Ignacio Bravo Muñoz, Alfredo Gardel Vicente, José Luis Lázaro Galilea, Pedro R. Fernández
Format: Article
Language:English
Published: MDPI AG 2012-07-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/12/7/9006
Description
Summary:This paper presents a fast calibration method to determine the transfer function for spatial correspondences in image transmission devices with <em>Incoherent</em><em> </em><em>Optical Fiber</em><em> </em><em>Bundles</em><em> </em>(IOFBs), by performing a scan of the input, using differential patterns generated from a Gray code (<em>Differential Gray-Code Space Encoding</em>, DGSE). The results demonstrate that this technique provides a noticeable reduction in processing time and better quality of the reconstructed image compared to other, previously employed techniques, such as point or fringe scanning, or even other known space encoding techniques.
ISSN:1424-8220