Digital holographic interferometry accelerated with GPU: application in mechanical micro-deformation measurement operating at video rate

N. Múnera Ortiz; C. A. Trujillo; J. García-Sucerquia

doi:10.1117/12.2021693

18 November 2013 Digital holographic interferometry accelerated with GPU: application in mechanical micro-deformation measurement operating at video rate

N. Múnera Ortiz, C. A. Trujillo, J. García-Sucerquia

Author Affiliations +

Proceedings Volume 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications; 8785A7 (2013) https://doi.org/10.1117/12.2021693
Event: 8th Ibero American Optics Meeting/11th Latin American Meeting on Optics, Lasers, and Applications, 2013, Porto, Portugal

Abstract

The quantification of the deformations presented by mechanical parts is a useful tool for several applications in engineering; regularly this quantification is performed a posteriori. In this work, a digital holographic interferometer for measuring micro-deformation at video rate is presented. The interferometer is developed with the use of the parallel paradigm of CUDA™ (Compute Unified Device Architecture). A commercial Graphics Processor Unit (GPU) is used to accelerate phase processing from the recorded holograms. The proposed method can process record holograms of 1024x1024 pixels in 48 milliseconds. At the best performance of the method, it processes 21 frames per second (FPS). This benchmark surpasses 133-times the best performance of the method on a regular CPU.

Citation Download Citation

N. Múnera Ortiz, C. A. Trujillo, and J. García-Sucerquia "Digital holographic interferometry accelerated with GPU: application in mechanical micro-deformation measurement operating at video rate", Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 8785A7 (18 November 2013); https://doi.org/10.1117/12.2021693

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