Peer-Reviewed Journal Details
Mandatory Fields
Maycock, J;McElhinney, CP;Hennelly, BM;Naughton, TJ;McDonald, JB;Javidi, B
2006
May
Journal of Applied Optics
Reconstruction of partially occluded objects encoded in three-dimensional scenes by using digital holograms
Published
30 ()
Optional Fields
SPACE-BANDWIDTH PRODUCT FRACTIONAL FOURIER RECOGNITION SYSTEMS
45
2975
2985
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 know ledge 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. (c) 2006 Optical Society of America.
WASHINGTON
1559-128X
Grant Details