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http://hdl.handle.net/1942/13055
Title: | Validity of the Wigner Distribution Function for Ray-based Imaging | Authors: | CUYPERS, Tom Oh, Se Baek Horstmeyer, Roarke BEKAERT, Philippe Raskar, Ramesh |
Issue Date: | 2011 | Publisher: | IEEE | Source: | Proceedings of the IEEE 3e International Conference on Computational Photography (ICCP 2011, p. 1-9 | Abstract: | In this work we provide an introduction to the Wigner Distribution Function (WDF) using geometric optics principles. The WDF provides a useful model of wave-fields, allowing simulation of diffraction and interference effects. We attempt to explain these Fourier optics concepts to computational photography researchers by clarifying the relationship between the WDF and position-angle representations. We demonstrate how the WDF can be used to simulate diffraction effects using a light field representation and discuss its validity in the near-field, far-field, and under the paraxial approximation. Finally, we demonstrate that although the WDF representation contains negative values, any projection always yields a non-negative intensity value. | Document URI: | http://hdl.handle.net/1942/13055 | ISBN: | 978-1-61284-707-8 | DOI: | 10.1109/ICCPHOT.2011.5753129 | Category: | C1 | Type: | Proceedings Paper |
Appears in Collections: | Research publications |
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