20 April 2016 Real-time image processing for non-contact monitoring of dynamic displacements using smartphone technologies
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Abstract
The newly developed smartphone application, named RINO, in this study allows measuring absolute dynamic displacements and processing them in real time using state-of-the-art smartphone technologies, such as high-performance graphics processing unit (GPU), in addition to already powerful CPU and memories, embedded high-speed/ resolution camera, and open-source computer vision libraries. A carefully designed color-patterned target and user-adjustable crop filter enable accurate and fast image processing, allowing up to 240fps for complete displacement calculation and real-time display. The performances of the developed smartphone application are experimentally validated, showing comparable accuracy with those of conventional laser displacement sensor.
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Jae-Hong Min, Jae-Hong Min, Nikolas J. Gelo, Nikolas J. Gelo, Hongki Jo, Hongki Jo, } "Real-time image processing for non-contact monitoring of dynamic displacements using smartphone technologies", Proc. SPIE 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016, 98031B (20 April 2016); doi: 10.1117/12.2219418; https://doi.org/10.1117/12.2219418
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