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Imaging Array Captures Minute Details From a Distance

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A unique camera that can capture a detailed micron-resolution image from a distance uses a laser and techniques that borrow from holography, microscopy and "Matrix"-style bullet time. Rice University graduate student Yicheng Wu demonstrates the SAVI prototype, which is able to capture fine details of an object from a distance, effectively replacing a large telephoto lens. The prototype camera is on a motorized track in the foreground at left, while a laser at right creates a speckle pattern on the target, a fingerprint. Courtesy of Jeff Fitlow/Rice University. Engineers from Rice and...Read full article

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    Published: April 2017
    Glossary
    superresolution
    Superresolution refers to the enhancement or improvement of the spatial resolution beyond the conventional limits imposed by the diffraction of light. In the context of imaging, it is a set of techniques and algorithms that aim to achieve higher resolution images than what is traditionally possible using standard imaging systems. In conventional optical microscopy, the resolution is limited by the diffraction of light, a phenomenon described by Ernst Abbe's diffraction limit. This limit sets a...
    Research & TechnologyeducationRice UniversityNorthwestern UniversitycamerasImagingsuperresolutionOpticsLasersAshok VeeraraghavanJason HollowaySynthetic Apertures for long-rangesubdiffraction-limited Visible ImagingSAVITech Pulse

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