Showing 601 - 620 results of 3,553 for search 'different threshold methods', query time: 0.17s Refine Results
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  3. 603

    A Method for Hand Dorsal Vein Recognition Based on Frangi and Morphological Operation by Xiaoling Xie, Xiaorui Xu, Junxi Zheng, Xiaocui Sun

    Published 2025-01-01
    “…Frangi-M was compared with the adaptive threshold method and the Butterworth high-pass filter method through qualitative and quantitative evaluation methods. …”
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    Article
  4. 604

    Study on construction method of three-dimensional numerical model of coal with fracture structure by Zixin ZHANG, Yang YU, Jiandong YU, Zengjie NIU, Ding LANG, Yao ZHANG

    Published 2025-04-01
    “…It is necessary to accurately grasp fracture structure and reconstruct 3D numerical model to stucly mechanical properties of coal and rock mass. The threshold segmentation of coal sample slices is carried out by using the combined methods of CT scanning, rock mechanics experiment, image processing technology and RFPA3D-CT to extract the three-dimensional fracture structure of coal sample, establish a three-dimensional numerical model that is basically consistent with the internal fracture structure and mechanical properties of the studied coal sample, and embed RFPA3D-CT for uniaxial loading numerical simulation analysis. …”
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  5. 605

    Image Processing Method Based on Chaotic Encryption and Wavelet Transform for Planar Design by Yiying Liu, Young Chun Ko

    Published 2021-01-01
    “…In the diffusion manipulation, the key matrix for diffusion is obtained using the threshold processing method of the Local Binary Pattern (LBP) algorithm for the matrices generated by the Logistic Chaos system, which improves the randomness of the algorithm. …”
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  6. 606

    Research on the UAV Sound Recognition Method Based on Frequency Band Feature Extraction by Jilong Zhong, Aigen Fan, Kuangang Fan, Wenjie Pan, Lu Zeng

    Published 2025-05-01
    “…Based on the MFCC feature extraction algorithm framework, an improved frequency band feature extraction method was proposed. This method replaces the Mel filter in the classic algorithm with a piecewise linear function with the frequency band weight as the slope, which can effectively suppress the influence of low- and high-frequency noise and fully focus on the different frequency band feature data of UAV sounds. …”
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  7. 607

    THE METHOD OF ADAPTIVE STATISTICAL CODING TAKING INTO ACCOUNT THE STRUCTURAL FEATURES OF VIDEO IMAGES by Volodymyr Barannik, Dmytro Havrylov, Serhii Pantas, Yurii Tsimura, Tatayna Belikova, Rimma Viedienieva, Vasyl Kryshtal

    Published 2024-12-01
    “…The differences of the method consist in carrying out vector intertransformation zig-zag linearization taking into account the selection of spectral components defined as complementary. …”
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  8. 608

    Crop row centerline extraction method based on regional feature point clustering by Baofeng Ji, Hang Wang, Chunhong Dong, Song Chen, Hongtao Chen, Fazhan Tao, Ji Zhang, Huitao Fan

    Published 2025-12-01
    “…First, the 2G-R-B feature factor and an optimal adaptive threshold segmentation method are used to segment crops and background. …”
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  9. 609

    Method of Load Forecasting in Microgrid Based on Differential Expansion of Small Sample Data by Wei JIA, Yuchun HUANG

    Published 2023-08-01
    “…This paper proposes a new data expansion method. The original data sample is used as a new data sample, and the data is filtered by setting a threshold. …”
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  10. 610

    Comparative Analysis of Health Economic Evaluations for Different Influenza Vaccines and Vaccination Strategies in China: A Systematic Review by Fanxu Kong, Li Cai, Jiayi Zhang, Huijie Zhu, Zhibin Peng, Jiandong Zheng, Yaming Zheng, Hai Fang

    Published 2025-03-01
    “…Objective: This study systematically reviews health economic evaluations of influenza vaccines in China and synthesizes the evidence on different vaccine categories. Methods: We searched databases, including the China Hospital Knowledge Database, Wanfang, PubMed, Web of Science, and Embase, for studies on the health economics of influenza vaccines in China from 2015 to 2024. …”
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    Article
  11. 611

    A New Signal Processing Method for Time-of-Flight and Center Frequency Estimation by Olgirdas Tumšys

    Published 2025-05-01
    “…There are many and various methods used to determine ToF, such as threshold detection, peak-based methods, cross-correlation, zero-crossing tracking algorithms, etc. …”
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  12. 612
  13. 613

    Interrupted Sampling Repeater Jamming Recognition Method Based on Wavelet Packet Transform by Zhong Qi, Fan Shoutao, He Zhiyi, Liu Jianxin

    Published 2025-01-01
    “…To address this issue, we propose a method for interference and target recognition based on the difference in the coefficient of variation obtained from wavelet packet transforms of jamming and target echoes, which can effectively eliminate the impact of ISRJ attacks. …”
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  14. 614

    The dose-response relationship and gender differences of serum uric acid with total cholesterol: a cross-sectional study by Leilei Guo, Lina Cai, Li Hu, Yueshan Zhou

    Published 2025-02-01
    “…Objective To explore the dose-response relationship and gender differences between serum uric acid (SUA) and total cholesterol (TC) in Chinese individuals. …”
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  15. 615

    Revisiting the extension of the Brussels urban agglomeration : new methods, new data … new results ? by Isabelle Thomas, Camille Cotteels, Jonathan Jones, Dominique Peeters

    Published 2012-12-01
    “…Results are further compared to more traditional delineations. Observed differences are mainly observed at the outskirts of the agglomeration but are very important in terms of policy : the urban-rural limit depends upon the criterion (definition, threshold) and method used. …”
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  16. 616

    Impact Response of Dam Affected by Landslide Surge Based on Improved SPH Method by Shuai HUANG, Zhonggen WANG, Yu LI, Yuxiang FENG

    Published 2025-01-01
    “…This model, based on a spring-damping method, adjusts the density threshold of particles, effectively addressing penetration issues between solid and fluid particles at boundaries. …”
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  17. 617

    Comparison of postoperative pain after the use of different nickel-titanium instrumentation systems: A randomized clinical trial by Özlem Sivas Yılmaz, Cangül Keskin, Duygu H. Acar, Hikmet Aydemir

    Published 2022-05-01
    “…The data were analysed using chi-square, one-way analysis of variance and post hoc Tukey tests and logistic regression analysis with 5% significance threshold. Results: No significant difference was found among preparation groups in relation to the intensity of postoperative pain. …”
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  18. 618

    Limits of Flow-Cytometry Histogram Analysis Methods to Assess Bladder Tumour Antigen Expression by Agnès Chabanas, Jean‐Jacques Rambeaud, Hong-Hsu Huo, Daniel Seigneurin, Jean-Jacques Lawrence

    Published 1997-01-01
    “…The HSD method appeared to be a more reliable method for background estimation; however, in the case of very low antigen expression, where specific fluorescence histograms could hardly be distinguished from that of the background, fluorescence microscopy remained the only valid method, since it allowed the distinction between specific and non‐specific fluorescence on the basis of structural differences between the two.…”
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  19. 619

    METHOD THERAPEUTIC INTERVENTION ON PHYSICAL STABILITY AMONG ELDERLY INDIVIDUALS IN KAKAMEGA COUNTY by Micky Oloo, Edwin Wamukoya, James Oloo

    Published 2024-07-01
    “…The threshold for statistical significance was set at p < 0.05.Results. …”
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  20. 620

    Sex Differences in Stroke in Cameroon: Results From a One‐Year Prospective Follow‐Up Cohort Study by Clovis Nkoke, Ahmadou Musa Jingi, Jean Jacques Noubiap, Cyrille Nkouonlack, Anastase Dzudie

    Published 2025-05-01
    “…There is a dearth of data on sex differences in stroke in Cameroon. We aimed to examine sex differences in stroke in a 1‐year follow‐up prospective cohort study in Cameroon. …”
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