Accelerated autofocusing of off-axis holograms using critical sampling

In this Letter we propose a fast off-axis hologram autofocusing (AF) approach that is based on the redundant data elimination by the critical resampling of the contained complex field. Implementation of the proposed methodology enables the real-time AF with up to 12x speed-up factors in comparison to the classical approach. The method is further extended for single-shot physical autofocus of the fluorescence imaging channel of multimodal imaging instruments capable of off-axis hologram acquisition. (C) 2012 Optical Society of America


Published in:
Optics Letters, 37, 24, 5094-5096
Year:
2012
Publisher:
Washington, Optical Society of America
ISSN:
0146-9592
Laboratories:




 Record created 2013-02-04, last modified 2018-03-17


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