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Design and implementation of a scene-dependent dynamically selfadaptable wavefront coding imaging system
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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.
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CARLES, Guillem, FERRAN, Carme, CARNICER GONZÁLEZ, Arturo, BOSCH I PUIG, Salvador. Design and implementation of a scene-dependent dynamically selfadaptable wavefront coding imaging system. _Computer Physics Communications_. 2012. Vol. 183, núm. 1. [consulta: 25 de febrer de 2026]. ISSN: 0010-4655. [Disponible a: https://hdl.handle.net/2445/66788]