Reconstruction of partially occluded objects encoded in three-dimensional scenes by using digital holograms

Applied Optics
Jonathan MaycockBahram Javidi

Abstract

We propose a task-specific digital holographic capture system for three-dimensional scenes, which can reduce the amount of data sent from the camera system to the receiver and can effectively reconstruct partially occluded objects. The system requires knowledge of the object of interest, but it does not require a priori knowledge of either the occlusion or the distance the object is from the camera. Subwindows of the camera-plane Fresnel field are digitally propagated to reveal different perspectives of the scene, and these are combined to overcome the unknown foreground occlusions. The nature of the occlusions and the effect of subwindows are analyzed thoroughly by using the Wigner distribution function. We demonstrate that a careful combination of reconstructions from subwindows can reveal features that are not apparent in a reconstruction from the whole hologram. We provide results by using optically captured digital holograms of real-world objects and simulated occlusions.

References

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Citations

May 12, 2007·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Jonathan MaycockThomas J Naughton
Dec 18, 2014·Journal of Biomedical Optics·Dejan V PantelićDarko M Vasiljević
Jul 3, 2008·Applied Optics·Tatsuya Nakatsuji, Kyoji Matsushima
Jan 8, 2013·Applied Optics·Yair RivensonBahram Javidi
Apr 19, 2013·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Haldun M Ozaktas, Figen S Oktem
Mar 3, 2011·Applied Optics·Nitesh Pandey, Bryan Hennelly
May 26, 2012·Optics Letters·Yair RivensonJoseph Rosen
Jul 3, 2008·Applied Optics·Conor P McElhinneyThomas J Naughton

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