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Fastener region location method based on gray-scale mutation: 《Journal of Measurement Science and Instrumentation》2021年第1期98-106,共9页LV Banghuan MIN Yongzhi HUO Hongtao; National Natural Science Foundation of China(Nos.61616202,61461203);Ministry of Education Innovation Team Development Plan(No.IRT_16R36);Plateau Information Engineering and Control Key Practice Laboratory Open Project Fund of Gansu Province(No.201611105)。; Rail fastener positioning method has high requirements for image quality and positioning accuracy.Therefore,a rail fastener positioning method based on gray mutation is proposed.Firstly,the image is denoised by an imp...; 关键词：fastener positioning gray-scale mutation median filtering gamma transformation wavelet decomposition mutation statistics

A Sort of Gray-scale Morphological Dilations and Erosions被引量：2: 《Chinese Quarterly Journal of Mathematics》2017年第2期181-186,共6页GUO Yan-yan GUO Qi; Supported by the National Natural Science Foundation of China（11671293, 11271282）; We introduce first a sort of gray-scale morphological dilations and erosions, which might have some further applications in image analysis. Then we show that the dilation and the erosion defined here form adjunctive p...; 关键词：gray-scale dilation gray-scale erosion mathematical morphologyi adjunction duality

Grey-scale sonography and sonoelastography for diagnosing carpal tunnel syndrome被引量：5: 《World Journal of Radiology》2016年第3期281-287,共7页Hideaki Miyamoto Yutaka Morizaki Takahiro Kashiyama Sakae Tanaka; Carpal tunnel syndrome(CTS) is a common peripheral entrapment neuropathy of the median nerve at wrist level, and is thought to be caused by compression of the median nerve in the carpal tunnel. There is no standard qu...; 关键词：CARPAL tunnel syndrome CROSS-SECTIONAL area GRAY-SCALE SONOGRAPHY Diagnosis MEDIAN nerve SONOELASTOGRAPHY Elasticity

A MODIFIED INTERPOLATION APPROACH FOR TOPOLOGY OPTIMIZATION被引量：3: 《Acta Mechanica Solida Sinica》2015年第4期420-430,共11页Yixian Du Shuangqiao Yan Yan Zhang Huanghai Xie Qihua Tian; supported by the National Natural Science Foundation of China(No.51105229);the National Science Foundation for Distinguished Young Scholars of Hubei Province of China(No.2013CFA022);the Science and Technology Support Program of Hubei Province of China(N0.2015BHE026);the Fund Project of Outstanding Dissertation of China Three Gorges University(No.2014PY026); In view of the fact that the follow-up search for an optimal topology is affected by deleting a large number of high-relative-density elements. When the typical density interpolation approach, namely, solid isotropic ...; 关键词：topology optimization density interpolation approach logistic function gray-scaleelement

Multi-Level Halftoning by IGS Quantization: 《Journal of Signal and Information Processing》2013年第4期351-358,共8页Tadahiko Kimoto; Improved gray-scale (IGS) quantization is a known method for re-quantizing digital gray-scale images for data compression while producing halftones by adding a level of randomness to improve visual quality of the resu...; 关键词：Digital HALFTONE MULTI-LEVEL HALFTONE Improved GRAY-SCALE QUANTIZATION Error Diffusion Subjective Testing

Impact of nodular size on the predictive values of gray-scale, color-Doppler ultrasound, and sonoelastography for assessment of thyroid nodules: 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》2013年第3期206-206,共1页Yu-rong Hong Yu-lian Wu Zhi-yan Luo Ning-bo Wu Xue-ming Liu; Objective： To define the roles of gray-scale, color-Doppler ultrasound, and sonoelastography for the assessment of thyroid nodule to determine whether nodule size affects the differential diagnosis of benign and mali...; 关键词：超声弹性成像多普勒超声预测值甲状腺结节灰度评估组织病理学检查

An Alternate Approach for Designing a Domain Specific Image Search Prototype Using Histogram: 《Journal of Software Engineering and Applications》2013年第3期131-139,共9页Sukanta Sinha Rana Dattagupta Debajyoti Mukhopadhyay; Everyone knows that thousand of words are represented by a single image. As a result, image search has become a very popular mechanism for the Web-searchers. Image search means, the search results are produced by the ...; 关键词：DOMAIN SPECIFIC Crawling HISTOGRAM GRAY-SCALE IMAGE IMAGE SEARCH Ontology SEARCH Engine

Impact of nodular size on the predictive values of gray-scale,color-Doppler ultrasound,and sonoelastography for assessment of thyroid nodules被引量：9: 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》2012年第9期707-716,共10页Yu-rong HONG Yu-lian WU Zhi-yan LUO Ning-bo WU Xue-ming LIU; Objective:To define the roles of gray-scale,color-Doppler ultrasound,and sonoelastography for the assessment of thyroid nodule to determine whether nodule size affects the differential diagnosis of benign and malignan...; 关键词：ULTRASOUND Thyroid nodules SONOELASTOGRAPHY Nodule size

Direct gray-scale extraction of topographic features for vein recognition被引量：1: 《Science China(Information Sciences)》2010年第10期2062-2074,共13页KANG WenXiong LI HuaSong DENG FeiQi; supported by the National Natural Science Foundation of China (Grant No. 60874114);the Scienceand Technology Planning Project of Guangdong Province (Grant No. 2009B030803032);the Fundamental Research Funds for the Central Universities, SCUT (Grant No. 2009ZM0070); Binarization processing is a key step in most vein pattern recognition, but may create flaws such as leakage of some feature information. In order to overcome this problem, a new approach is explored in this paper whi...; 关键词：vein recognition feature extraction directional fields

Multi-scale Chaotic Analysis of the Characteristics of Gas-Liquid Two-phase Flow Patterns被引量：6: 《Chinese Journal of Chemical Engineering》2010年第5期880-888,共9页李洪伟周云龙孙斌杨悦; Supported by the National Natural Science Foundation of China （50976018）; the Natural Science Foundation of JilinProvince （20101562）; Using the high-speed camera the time sequences of the classical flow patterns of horizontal gas-liquid pipe flow are recorded, from which the average gray-scale values of single-frame images are extracted. Thus obtain...; 关键词：gas-liquid two-phase flow gray-scale time series empirical mode decomposition Hurst exponent chaotic recurrence plot

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