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Journal of Applied Remote Sensing • Open Access

Evaluation of the graphics processing unit architecture for the implementation of target detection algorithms for hyperspectral imagery
Author(s): Blas Trigueros-Espinosa; Miguel Velez-Reyes; Nayda G. Santiago-Santiago; Samuel Rosario-Torres

Paper Abstract

Recent advances in hyperspectral imaging sensors allow the acquisition of images of a scene at hundreds of contiguous narrow spectral bands. Target detection algorithms try to exploit this high-resolution spectral information to detect target materials present in a scene, but this process may be computationally intensive due to the large data volumes generated by the hyperspectral sensors, typically hundreds of megabytes. Previous works have shown that hyperspectral data processing can significantly benefit from the parallel computing resources of graphics processing units (GPUs), due to their highly parallel structure and the high computational capabilities that can be achieved at relative low costs. We studied the parallel implementation of three target detection algorithms (RX algorithm, matched filter, and adaptive matched subspace detector) for hyperspectral images in order to identify the aspects in the structure of these algorithms that can exploit the CUDA™ architecture of NVIDIA® GPUs. A data set was generated using a SOC-700 hyperspectral imager to evaluate the performance and detection accuracy of the parallel implementations on a NVIDIA® Tesla™ C1060 graphics card, achieving real-time performance in the GPU implementations based on global statistics.

Paper Details

Date Published: 21 June 2012
PDF: 15 pages
J. Appl. Remote Sens. 6(1) 061506 doi: 10.1117/1.JRS.6.061506
Published in: Journal of Applied Remote Sensing Volume 6, Issue 1
Show Author Affiliations
Blas Trigueros-Espinosa, Univ. de Puerto Rico Mayagüez (United States)
Miguel Velez-Reyes, Univ. de Puerto Rico Mayagüez (United States)
Nayda G. Santiago-Santiago, Univ. de Puerto Rico Mayagüez (United States)
Samuel Rosario-Torres, Univ. de Puerto Rico Mayagüez (United States)

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