Showing 921 - 940 results of 2,983 for search '(functional OR function) object detection', query time: 0.20s Refine Results
  1. 921

    Low-dose dobutamine stress myocardial contrast echocardiography for evaluating myocardial microcirculation perfusion and predicting long-term prognosis in ST-segment elevation myoc... by Li Li, Na Hu, Linzi Li, Liangyi Li

    Published 2025-02-01
    “…Abstract Objective Percutaneous coronary intervention (PCI) can effectively restore myocardial perfusion in patients with ST-segment elevation myocardial infarction (STEMI). …”
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    Article
  2. 922

    Anomaly detection with domain specific shapelet learning for sucker rod pump system by Xiangyu Li, Zhupei Liao, Chunhua Yuan

    Published 2025-07-01
    “…The AD-DSL utilizes a mechanistic information matrix and introduces a sparsity-promoting objective function, enabling Shapelet-based features to learn from motor power time-series data interpretably. …”
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  3. 923

    A range spread target detection algorithm based on polarimetric features and SVDD by Qiang LI, Yuanxin YAO, Xiangqi KONG

    Published 2023-10-01
    “…Multi-polarization range high resolution radar is an important mean for ground target detection.In the echo formed by it, the target occupies multiple range cells and becomes an extended target.The traditional spread target detection method relies on energy, and the detection performance decreases when the signal-to-clutter ratio decreases.A spread target detection algorithm based on polarization decomposition features was proposed, which improved the detection performance under low signal-to-clutter ratio by using the difference of polarization scattering characteristics between target and clutter.Specifically, 16 kinds of polarization decomposition features were extracted to form feature vectors as detection statistics, and then support vector data description (SVDD) was used to obtain the detection threshold.When training the detection threshold, the polarization decomposition features of clutter were extracted as training data.In order to ensure the false alarm probability, two penalty parameters were introduced into the objective function of SVDD.The experimental results show that the proposed method requires a signal-to-clutter ratio of about 12.6 dB in the case of Gobi background, false alarm probability of 10<sup>-4</sup> and detection probability of 90%, which is about 1.7 dB lower than the energy-based methods.…”
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  4. 924

    Innovative adaptive edge detection for noisy images using wavelet and Gaussian method by Huanxu Li, Keke Xu

    Published 2025-02-01
    “…The proposed denoising module employs wavelet and Gaussian denoising functions to decompose, filter, and reconstruct the image, thereby reducing the impact of noise and enhancing image quality. …”
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    Article
  5. 925

    A Weak Signal Detection Method for Bearing Based on QGA and Stochastic Resonance by GE Jiang hua, WANG Yan, WANG Ya ping, SUN Yong guo, Xu Di

    Published 2020-06-01
    “…Secondly, the output SNR is selected as the objective function, and the two parameter are dealt with adaptive optimization through the QGA; Finally, the SNR of weak signal is improved by stochastic resonance system. …”
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  6. 926
  7. 927

    Multi-Scale Construction Site Fire Detection Algorithm with Integrated Attention Mechanism by Haipeng Sun, Tao Yao

    Published 2025-06-01
    “…First, considering the wide range of scale variations in detected objects, an additional detection layer with a 64-times down-sampling rate is introduced to enhance the algorithm’s detection capability for multi-scale targets. …”
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    Article
  8. 928
  9. 929

    GLS-YOLO: A Lightweight Tea Bud Detection Model in Complex Scenarios by Shanshan Li, Zhe Zhang, Shijun Li

    Published 2024-12-01
    “…To tackle the challenges posed by varying poses and occlusions of tea buds, Shape-IoU was employed as the loss function to improve the scoring of similarly shaped objects, reducing false positives and false negatives while improving the detection of non-rectangular or irregularly shaped objects. …”
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    Article
  10. 930

    A Detection Method for Conveyor Belt Damage with Small Size and Low Contrast by HAN Yajie, HAO Xiaoli, NIU Baoning, XUE Jindong

    Published 2025-01-01
    “…[Purposes] An improved YOLOv4 detection model is proposed to solve the problems of missing detection and false detection when the existing models detect objects with small size and low contrast with the background. …”
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    Article
  11. 931

    CubicPat: Investigations on the Mental Performance and Stress Detection Using EEG Signals by Ugur Ince, Yunus Talu, Aleyna Duz, Suat Tas, Dahiru Tanko, Irem Tasci, Sengul Dogan, Abdul Hafeez Baig, Emrah Aydemir, Turker Tuncer

    Published 2025-02-01
    “…<b>Materials and Methods:</b> Two EEG datasets were collected to detect mental performance and stress. To achieve classification and explainable results, a new XFE model was developed, incorporating a novel feature extraction function called Cubic Pattern (CubicPat), which generates a three-dimensional feature vector by coding channels. …”
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    Article
  12. 932

    Surface Defect Detection of Frozen Dumplings Based on Improved RetinaNet Model by Zhigen FEI, Xing GUO, Xiaoxiao SONG, Hao LU, Xinchang ZHAO

    Published 2025-03-01
    “…Objective: To improve the accuracy of surface defect detection of quick-frozen dumplings. …”
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  13. 933

    Diagnostic value of combined detection of five biochemical indexes in early diabetic nephropathy by TANG Wei

    Published 2017-01-01
    “…Objective To investigate the diagnostic value of combined detection of serum cystatin C( Cys-C),homocysteine( Hcy),hypersensitive C-reactive protein( hs-CRP),urine β2 microglobulin( U-β2 MG) and urinary albumin( UAlb) in early diabetic nephropathy( DN). …”
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  14. 934

    Enhanced pulmonary nodule detection with U-Net, YOLOv8, and swin transformer by Xing Wang, Houde Wu, Longshuang Wang, Jingxu Chen, Yi Li, Xinliu He, Ting Chen, Minghui Wang, Li Guo

    Published 2025-07-01
    “…Abstract Rationale and objectives Lung cancer remains the leading cause of cancer-related mortality worldwide, emphasizing the critical need for early pulmonary nodule detection to improve patient outcomes. …”
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  15. 935

    SGSNet: a lightweight deep learning model for strawberry growth stage detection by Zhiyu Li, Jianping Wang, Guohong Gao, Yufeng Lei, Chenping Zhao, Yan Wang, Haofan Bai, Yuqing Liu, Xiaojuan Guo, Qian Li

    Published 2024-12-01
    “…The DySample adaptive upsampling structure is employed to dynamically adjust sampling point locations, thereby enhancing the detection capability for objects at different scales. …”
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    Article
  16. 936
  17. 937

    Non-Destructive Detection of Soybean Storage Quality Using Hyperspectral Imaging Technology by Yurong Zhang, Wenliang Wu, Xianqing Zhou, Jun-Hu Cheng

    Published 2025-03-01
    “…The optimal model was used to visualize the dynamic distribution of these values. (3) Results: the crude fatty acid values exhibited a positive correlation with storage time, functioning as a direct indicator of soybean quality. …”
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    Article
  18. 938
  19. 939

    Detecting Freezing of Gait in Parkinson Disease Using Multiple Wearable Sensors Sets During Various Walking Tasks Relative to Medication Conditions (DetectFoG): Protocol for a Pros... by Sébastien Cordillet, Sophie Drapier, Frédérique Leh, Audeline Dumont, Florian Bidet, Isabelle Bonan, Karim Jamal

    Published 2025-02-01
    “…Although several questionnaires exist, they lack objectivity. Using wearable sensors such as inertial measurement units (IMUs) to detect FoG episodes offers greater objectivity and accuracy. …”
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    Article
  20. 940

    Defect detection in photolithographic patterns using deep learning models trained on synthetic data by Prashant P. Shinde, Priyadarshini P. Pai, Shashishekar P. Adiga, K. Subramanya Mayya, Yongbeom Seo, Myungsoo Hwang, Heeyoung Go, Changmin Park

    Published 2025-05-01
    “…We then employ state-of-the-art object detection models to investigate defect detection performance as a function of defect size, much smaller than the pitch width. …”
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    Article