Color Speckle
نویسندگان
چکیده
منابع مشابه
Laser speckle imaging using a consumer-grade color camera.
Laser speckle imaging (LSI) is a noninvasive optical imaging technique able to provide wide-field two-dimensional maps of moving particles. Raw laser speckle images are typically taken with a scientific-grade monochrome camera. We demonstrate that a digital single-lens reflex (dSLR) camera with a Bayer filter is able to provide similar sensitivity despite taking information only from a specific...
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5.1.1 Vibration Detection in the Presence of a Reference Wave 5.1.2 Vibration Detection without a Reference Field 5.2 Deformation Measurement by Speckle Interferometry 5.3 In-Plane Oscillations by Image Plane Recording 5.3.1 Theory 5.3.2 Time-Average Exposures of in-Plane Oscillations 5.3.3 Display of Young's Fringes 5.3.4 Comparison of Fringe Shapes for Different Motions 5.4 Tilt Analysis by F...
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The useful dynamic range of an image in the diffraction limited regime is usually limited by speckles caused by residual phase errors in the optical system forming the image. The technique of speckle decorrelation involves introducing many independent realizations of additional phase error into a wavefront during one speckle lifetime, changing the instantaneous speckle pattern. A commonly held ...
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The conventional spectrometers rely on one-to-one spectral-to-spatial mapping. Such mapping is necessary for a wavelength demultiplexer but not a spectrometer. Complex spectral to spatial mapping has been explored with disordered photonic crystals, thin scattering media, and random polychromat, for spectrometer application. The disorder-induced scattering of light produces wavelength-dependent ...
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ژورنال
عنوان ژورنال: The Review of Laser Engineering
سال: 2014
ISSN: 0387-0200,1349-6603
DOI: 10.2184/lsj.42.7_543