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Title: Design and implementation of a scene-dependent dynamically selfadaptable wavefront coding imaging system
Author: Carles, Guillem
Ferran, Carme
Carnicer González, Arturo
Bosch i Puig, Salvador
Keywords: Sistemes d'imatges
Processament d'imatges
Imaging systems
Image processing
Issue Date: 2012
Publisher: Elsevier B.V.
Abstract: A computational imaging system based on wavefront coding is presented. Wavefront coding provides an extension of the depth-of-field at the expense of a slight reduction of image quality. This trade-off results from the amount of coding used. By using spatial light modulators, a flexible coding is achieved which permits it to be increased or decreased as needed. In this paper a computational method is proposed for evaluating the output of a wavefront coding imaging system equipped with a spatial light modulator, with the aim of thus making it possible to implement the most suitable coding strength for a given scene. This is achieved in an unsupervised manner, thus the whole system acts as a dynamically selfadaptable imaging system. The program presented here controls the spatial light modulator and the camera, and also processes the images in a synchronised way in order to implement the dynamic system in real time. A prototype of the system was implemented in the laboratory and illustrative examples of the performance are reported in this paper.
Note: Versió postprint del document publicat a:
It is part of: Computer Physics Communications, 2012, vol. 183, num. 1
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ISSN: 0010-4655
Appears in Collections:Articles publicats en revistes (Física Aplicada)

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