Showing 761 - 780 results of 922 for search '"wavelet"', query time: 0.05s Refine Results
  1. 761

    Digital Rebirth of Dongba Pattern: An Improved Active Contour Model for Pattern Contour Extraction by Yuan Li, Tao Wu, Rongbing Fu, En Lu

    Published 2025-01-01
    “…The improved active contour method adds discrete wavelet transform for energy minimization. Moreover, the minimization formula assigns greater weight to foreground pixels. …”
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    Article
  2. 762

    Graph-Based Analysis of RNA Secondary Structure Similarity Comparison by Lina Yang, Yang Liu, Xiaochun Hu, Patrick Wang, Xichun Li, Jun Wu

    Published 2021-01-01
    “…A combinational method involving a discrete wavelet transform (DWT) and fractal dimension with sliding window is introduced to analyze and compare the graphs derived from feature extraction; after that, the distance matrix is generated. …”
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    Article
  3. 763

    Fault Diagnosis of Subway Traction Motor Bearing Based on Information Fusion under Variable Working Conditions by Yanwei Xu, Weiwei Cai, Tancheng Xie

    Published 2021-01-01
    “…Then, the original signal is processed and extracted by the wavelet packet decomposition, and the normalized feature information is fused by the convolution neural network. …”
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  4. 764

    Research on Coal-Rock Fracture Image Edge Detection Based on Tikhonov Regularization and Fractional Order Differential Operator by Chunsheng Liu, Chunping Ren

    Published 2019-01-01
    “…In addition, the proposed method is compared with Canny algorithm, B-spline wavelet transform, and multidirection fuzzy morphological edge detection method, can detect more coal-rock fracture infrared image edge details, and is more robust to noise.…”
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    Article
  5. 765

    Spatial and Temporal Variability of Sea Surface Temperature in Eastern Marginal Seas of China by Renhao Wu, Jianmin Lin, Bo Li

    Published 2016-01-01
    “…In order to investigate the interannual variation of SST, the EMSC SST interannual index was constructed. Based on wavelet analysis, a significant peak around 3.3 years was found in the EMSC SST interannual index. …”
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    Article
  6. 766

    Diagnosis experience of traction engines of locomotives by Ngoulou-A-Ndzeli, V. Yu. Tetter, V. G. Shakhov

    Published 2019-03-01
    “…Authors propose a method and algorithms for the rapid diagnosis of locomotives traction engines based on duplication of main frequency channel by additional wavelet analysis and decision — making on the methodology of fuzzy logic. …”
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  7. 767

    Blind Source Parameters for Performance Evaluation of Despeckling Filters by Nagashettappa Biradar, M. L. Dewal, ManojKumar Rohit, Sanjaykumar Gowre, Yogesh Gundge

    Published 2016-01-01
    “…The SMPI is three times more effective compared to the wavelet based generalized likelihood estimation approach. …”
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    Article
  8. 768

    Shockwave-Based Automated Vehicle Longitudinal Control Algorithm for Nonrecurrent Congestion Mitigation by Liuhui Zhao, Joyoung Lee, Steven Chien, Cheol Oh

    Published 2017-01-01
    “…In the advent of Connected/Automated Vehicle (C/AV) environment, the proposed algorithm can be applied to capture instantaneous shockwaves constructed from vehicular speed profiles shared by individual equipped vehicles. With a continuous wavelet transform (CWT) method, the algorithm detects abnormal speed drops in real-time and optimizes speed to prevent the shockwave propagating to the upstream traffic. …”
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    Article
  9. 769

    Exploring the role of ICT adoption technologies and renewable energy consumption in achieving a sustainable environment in the United States: an SDGs-based policy framework by Tomiwa Sunday Adebayo, Oktay Özkan, Dilber Uzun Ozsahin, Babatunde Sunday Eweade, Bright Akwasi Gyamfi

    Published 2025-01-01
    “…This study, therefore, investigates the key drivers of CO2 emissions (CO2) in the United States using data from 1990Q1 to 2021Q4. The study employs wavelet quantile-on-quantile regression along with quantile cointegration to analyze these dynamics across different quantiles and timeframes. …”
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    Article
  10. 770

    Maximum Entropy Threshold Segmentation for Target Matching Using Speeded-Up Robust Features by Mu Zhou, Xia Hong, Zengshan Tian, Huining Dong, Mingchun Wang, Kunjie Xu

    Published 2014-01-01
    “…Third, from the 2D Haar wavelet responses, we generate the 64-dimensional (64D) feature point descriptor vectors. …”
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  11. 771

    Natural Frequencies and Modal Damping Ratios Identification of Civil Structures from Ambient Vibration Data by Minh-Nghi Ta, Joseph Lardiès, Berthillier Marc

    Published 2006-01-01
    “…From output data only, the modal parameter are extracted using a subspace method and the wavelet transform method.…”
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  12. 772

    Detection and Quantization of Bearing Fault in Direct Drive Wind Turbine via Comparative Analysis by Wei Teng, Rui Jiang, Xian Ding, Yibing Liu, Zhiyong Ma

    Published 2016-01-01
    “…MuSEnS can manifest fault modulation information adaptively based on the capacity of complex wavelet transform, which enables the weak bearing fault in DDWT to be detected. …”
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    Article
  13. 773

    Dynamic multiday seizure cycles and evolving rhythms in a tetanus toxin rat model of epilepsy by Parvin Zarei Eskikand, Mark J. Cook, Anthony N. Burkitt, David B. Grayden

    Published 2025-02-01
    “…Six TT-injected rats were observed over a 40-day period, with continuous EEG monitoring to record seizure events. Wavelet transform analysis revealed significant multiday cycles in seizure occurrences, with periods ranging from 4 to 7 days across different rats. …”
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  14. 774

    Comparison of Machine Learning Methods for the Arterial Hypertension Diagnostics by Vladimir S. Kublanov, Anton Yu. Dolganov, David Belo, Hugo Gamboa

    Published 2017-01-01
    “…Moreover, in the study, different methods of feature extraction are analyzed: statistical, spectral, wavelet, and multifractal. All in all, 53 features were investigated. …”
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  15. 775

    Distributed Compressed Video Sensing in Camera Sensor Networks by Yu Liu, Xuqi Zhu, Lin Zhang, Sung Ho Cho

    Published 2012-12-01
    “…The DCVS scheme using SI-BP is designed over two frame signal models, the mixture Gaussian (MG) model and the wavelet hidden Markov tree (WHMT) model. Simulation results evaluated on two video sequences illustrate that the SI-BP-based DCVS scheme is error resilient when the measurements are transmitted through the noisy wireless channels.…”
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  16. 776

    Retracted: Application of Migration Image Registration Algorithm Based on Improved SURF in Remote Sensing Image Mosaic by Tian Zhang, Rui Zhao, Zhongsheng Chen

    Published 2020-01-01
    “…Firstly, image preprocessing is carried out by image binarization, feature points are extracted by Hes-sian matrix, and then feature description is carried out by using circular neighborhood of feature points. Har wavelet response is used to establish descriptors for each feature point, and the normalized gray-level difference and second-order gradient in the neighborhood are calculated simultaneously to form a new feature descriptor. …”
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  17. 777

    Rapid Driving Style Recognition in Car-Following Using Machine Learning and Vehicle Trajectory Data by Qingwen Xue, Ke Wang, Jian John Lu, Yujie Liu

    Published 2019-01-01
    “…Then, the driving style recognition model’s inputs are extracted from vehicle trajectory features, including acceleration, relative speed, and relative distance, using Discrete Fourier Transform (DFT), Discrete Wavelet Transform (DWT), and statistical method to facilitate the driving style recognition. …”
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  18. 778

    Estimation of Modal Properties of Low-Rise Buildings Using Ambient Excitation Measurements by K. K. Wijesundara, C. Negulescu, E. Foerster

    Published 2015-01-01
    “…Continuous wavelet transform (CWT) has recently emerged as a promising tool for identification of modal properties through ambient excitation measurements of structures. …”
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  19. 779

    Spatiotemporal Traffic Flow Prediction with KNN and LSTM by Xianglong Luo, Danyang Li, Yu Yang, Shengrui Zhang

    Published 2019-01-01
    “…Experimental results indicate that the proposed model can achieve a better performance compared with well-known prediction models including autoregressive integrated moving average (ARIMA), support vector regression (SVR), wavelet neural network (WNN), deep belief networks combined with support vector regression (DBN-SVR), and LSTM models, and the proposed model can achieve on average 12.59% accuracy improvement.…”
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  20. 780

    Three-Dimensional Reconstruction of Road Structural Defects Using GPR Investigation and Back-Projection Algorithm by Lutai Wang, Zhen Liu, Xingyu Gu, Danyu Wang

    Published 2024-12-01
    “…Initially, GPR detection images were preprocessed, including direct wave removal and wavelet denoising, followed by the application of the BP algorithm to effectively restore the defect’s location and size. …”
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    Article