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arXiv · 2303.07355

Intensity-based dynamic speckle method using JPEG and JPEG2000 compression

Elena Stoykova·Blaga Blagoeva·Natalya Berberova-Buhova·Mikhail Levchenko·Dimana Nazarova·Lian Nedelchev·Joongki Park
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Abstract

Statistical processing of speckle data enables observation of speed of processes. In intensity-based pointwise dynamic speckle analysis, a map related to speed's spatial distribution is extracted from a sequence of speckle patterns formed on an object under coherent light. Monitoring of time evolution of a process needs storage, transfer and processing of a large number of images. We have proposed lossy compression of these images using JPEG and JPEG2000 formats. We have compared the maps computed from non-compressed and decompressed synthetic and experimental images, and we have proven that both compression formats can be applied in the dynamic speckle analysis.

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Elena Stoykova, Blaga Blagoeva, Natalya Berberova-Buhova, Mikhail Levchenko, Dimana Nazarova, Lian Nedelchev, Joongki Park. 2023-03-13. Intensity-based dynamic speckle method using JPEG and JPEG2000 compression. https://doi.org/10.1364/ao.444831

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