期刊
IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
卷 28, 期 10, 页码 2953-2964出版社
IEEE COMPUTER SOC
DOI: 10.1109/TPDS.2017.2687927
关键词
Compute unified device architecture (CUDA); graphics processing unit (GPU); imaging radar; real-time; terahertz; threat detection
资金
- Ministerio de Economia y Competitividad of the Spanish Government [TEC2014-53815-R]
- Madrid Regional Government [S2013/ICE-3000]
- Spanish Directorate General of Traffic [SPIP2015-01879]
- Ministerio de Economia y Competitividad
A real-time image processing algorithm, using a GPU with NVIDIA's CUDA technology, for a 3-D through-clothes detection radar in the THz band has been developed. Traditional CPU-based architectures lack the computing power and parallelization needed to meet the image refresh rates imposed by the radar's scanning. This solution presents a low-cost and flexible alternative that allows image refresh at a rate of more than 8 fps for images composed of 6,000 pixels, corresponding to a scanned area of 50 x 90 cm(2). The performance of this code has been profiled, with comparison against a previous CPU-executed version, and some optimizations that would enable even faster refresh have been analyzed.
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