Affiliations: [a] Faculty of Civil Aviation and Aeronautical, Kunming University of Science & Technology, Kunming, P.R. China | [b] Kunming SNLAB Tech Co., Ltd., Kunming, P.R. China | [c] Railway Public Security Bureau, Ministry of Public Security, Beijing, P.R. China | [d]
Ministry of Public Security Material Certification Center, Beijing, P.R. China
Correspondence:
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Corresponding author. Nan Pan, Faculty of Civil Aviation and Aeronautical, Kunming University of Science & Technology, Kunming, P.R. China. Tel.: +86 15808867407; E-mail: 15808867407@163.com.
Abstract: Conventional methods can scarcely achieve the rapid comparison of line traces. In this study, trace detection signals based on a single-point laser were collected and smoothed. The multi-scale wavelet coefficient of the trace detection signals was obtained after noise reduction by the dual-tree complex wavelet algorithm to minimize the adverse effects of data size on successive comparison calculations. Batch similarity comparison of trace features was achieved using multiple comparison strategies, including an optimized dynamic time regulation algorithm and the recognition of the changing rate gradient. Based on the results of boosting fusion multi-strategy comparison, optimized comparisons were achieved by machine learning, and a model for the rapid comparison of trace features was established. Finally, the viability of the proposed algorithm was verified by experiments.
Keywords: Multi-strategy mode, line traces, dual tree complex wavelet, batch comparison
