Detection of faint objects: role of parallel element grid

The role of parallel element grid in recognizing faint objects is examined by using thin wires as objects, imaged by a camera under defocused condition. The objects were illuminated by incoherent monochromatic radiation. The technique is sensitive to small variations in the instrumentation condition...

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Bibliographic Details
Published in:Journal of optics (New Delhi) 2012-03, Vol.41 (1), p.70-73
Main Authors: Prasad, P. B. V., Rao, P. Sita Rama, Parcha, Shashikanth B.
Format: Article
Language:English
Subjects:
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Research Article
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Summary:The role of parallel element grid in recognizing faint objects is examined by using thin wires as objects, imaged by a camera under defocused condition. The objects were illuminated by incoherent monochromatic radiation. The technique is sensitive to small variations in the instrumentation conditions and hence vindicates the possibility for the development of an object specific grid to study any given object.
ISSN:0972-8821
0974-6900
DOI:10.1007/s12596-012-0063-3