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首页> 外文期刊>Advances in Electrical and Computer Engineering >Examination of Speed Contribution of Parallelization for Several Fingerprint Pre-Processing Algorithms
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Examination of Speed Contribution of Parallelization for Several Fingerprint Pre-Processing Algorithms

机译:几种指纹预处理算法并行化速度贡献的检验

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摘要

In analysis of minutiae based fingerprint systems, fingerprints needs to be pre-processed. The pre-processing is carried out to enhance the quality of the fingerprint and to obtain more accurate minutiae points. Reducing the pre-processing time is important for identification and verification in real time systems and especially for databases holding large fingerprints information. Parallel processing and parallel CPU computing can be considered as distribution of processes over multi core processor. This is done by using parallel programming techniques. Reducing the execution time is the main objective in parallel processing. In this study, pre-processing of minutiae based fingerprint system is implemented by parallel processing on multi core computers using OpenMP and on graphics processor using CUDA to improve execution time. The execution times and speedup ratios are compared with the one that of single core processor. The results show that by using parallel processing, execution time is substantially improved. The improvement ratios obtained for different pre-processing algorithms allowed us to make suggestions on the more suitable approaches for parallelization.
机译:在分析基于细节的指纹系统时,需要对指纹进行预处理。进行预处理以增强指纹的质量并获得更准确的细节点。减少预处理时间对于实时系统中的识别和验证,特别是对于保存大量指纹信息的数据库而言,非常重要。并行处理和并行CPU计算可以视为多核处理器上的进程分布。这是通过使用并行编程技术完成的。减少执行时间是并行处理的主要目标。在这项研究中,基于细节的指纹系统的预处理是通过在使用OpenMP的多核计算机上以及在使用CUDA的图形处理器上进行并行处理来实现的,以缩短执行时间。将执行时间和加速比与单核处理器的执行时间和加速比进行比较。结果表明,通过使用并行处理,执行时间显着改善。对于不同的预处理算法获得的改进率使我们能够对更合适的并行化方法提出建议。

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