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

Sensors

Pedro R. Fernández²  José Luis Lázaro Galilea²  Alfredo Gardel Vicente²  Ignacio Bravo Muñoz²  Ángel E. Cano Garc໚¹ 

[1] Telecommunication Department, University of Oriente, Av. de las Américas, SN, Santiago de Cuba 90400, Cuba; E-Mail:;Electronics Department, University of Alcalá, Superior Polytechnic School, University Campus, Alcalá de Henares 28871, Madrid, Spain; E-Mails:

关键词: image sensor;    fiber imaging;    image transmission;    sensor calibration;    optical fiber sensors;   

DOI  :  10.3390/s120709006

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.