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Please use this identifier to cite or link to this item: 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
Citation: 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.
URI: http://hdl.handle.net/1942/13055
DOI: 10.1109/ICCPHOT.2011.5753129
ISBN: 978-1-61284-707-8
Category: C1
Type: Proceedings Paper
Appears in Collections: Research publications

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