title: Improving the calibration of image sensors based on IOFBs, using differential gray-code space encoding.
abstract: This paper presents a fast calibration method to determine the transfer function for spatial correspondences in image transmission devices with Incoherent Optical Fiber Bundles (IOFBs), by performing a scan of the input, using differential patterns generated from a Gray code (Differential Gray-Code Space Encoding, 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.
authors.affiliation: Electronics Department, University of Alcalá, Superior Polytechnic School, University Campus, Alcalá de Henares 28871, Madrid, Spain. pedro.fernandez@depeca.uah.es
authors.forename: Pedro R
authors.initials: PR
authors.lastname: Fernández
authors.forename: José Luis
authors.initials: JL
authors.lastname: Lázaro Galilea
authors.forename: Alfredo
authors.initials: A
authors.lastname: Gardel Vicente
authors.forename: Ignacio
authors.initials: I
authors.lastname: Bravo Muñoz
authors.forename: Angel E
authors.initials: AE
authors.lastname: Cano García
authors.forename: Carlos
authors.initials: C
authors.lastname: Luna Vázquez