Kelly, Damien P. and Pandey, Nitesh and Hennelly, Bryan M. and Naughton, Thomas J.
Quantization noise: An additional constraint for the
extended sampling theorem.
Digital holography (DH) differs from traditional holography in that a dynamic digital sensor
is used in place of photographic plate to record the interference pattern due to an incident object and
reference wave-field. By recording the interference pattern of an object and reference wave the complex
amplitude of the object field may be recovered [1-6]. There are many advantages to a digital approach
such as ease of use, flexibility in image processing, storing and transmission of the data electronically.
However the limited number of pixels on a modern CCD camera (as well as the relatively large
spacing between adjacent pixels in contrast to a comparable recording on typical photographic film)
imposes a severe limitation on the spatial resolution of the captured digital holograms. High spatial
resolution in digital holograms is important for accurately recording and replaying 3D scenes [7,8].
||Digital holography; discrete optical signal processing;
superresolution; Fresnel transform;
||Science & Engineering > Computer Science
Dr. Thomas Naughton
||19 Jan 2011 14:51
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||Optical Society of America
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