Quality analysis of DSPs with different edges in DIC-based deformation measurements.
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DOI: 10.1364/ao.554144
Abstract: The digital speckle pattern (DSP) is one of the key factors in digital image correlation (DIC), and its quality directly determines the accuracy of the computations. In practical DIC calculations, factors such as non-uniform illumination… read more here.
Keywords: quality; production parameters; dsps different; deformation measurements ... See more keywords
Geometry constrained correlation adjustment for stereo reconstruction in 3D optical deformation measurements.
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DOI: 10.1364/oe.392248
Abstract: Recovering the geometric shape of deformable objects from images is essential to optical three-dimensional (3D) deformation measurements and is also actively pursued by researchers. Most of the existing techniques retrieve the shape data with triangulation… read more here.
Keywords: correlation adjustment; stereo; deformation; geometry ... See more keywords
Fabrication of Micro-Scale Gratings by Nanosecond Laser and Its Applications for Deformation Measurements
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DOI: 10.3390/mi8050136
Abstract: This paper experimentally investigated the fabrication and optimization of micro-scale gratings formed by nanosecond laser etching. The mechanism of nanosecond laser processing and the geometric phase analysis (GPA) are discussed, and the factors influencing the… read more here.
Keywords: laser; micro scale; fabrication; nanosecond laser ... See more keywords