2011 4th International Congress on Image and Signal Processing最新文献_第7页

Coronary artery calcium measurement with 64-slice MDCT: Comparison among 80, 100, and 120 kV tube voltages 64层MDCT冠状动脉钙测量:80kv、100kv和120kv管电压的比较

2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100432

S. Tsai, Tak-Yee Wong, Jui-Hsien Kai, Jyh-Cheng Chen

引用次数: 0

Image denoising using multiple compressive reconstructed images 利用多个压缩重构图像进行图像去噪

2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6099982

M. Iqbal, Jie Chen

引用次数: 0

Simulation of lightning signals through cloud based on Monte Carlo method 基于蒙特卡罗方法的云层闪电信号模拟

2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100431

Ying Yang, Shengbo Chen, Yuhang Jiang, Peng Lu, Qian Yang

引用次数: 0

2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100785

Lejun Wang, Yong Huang, Mingxin Gong, Jiangbo Wu, Zhanqiang Li, Zengke Yue

{"title":"Fatigue related electromyographic coherence analysis between agonistic elbow flexion muscles","authors":"Lejun Wang, Yong Huang, Mingxin Gong, Jiangbo Wu, Zhanqiang Li, Zengke Yue","doi":"10.1109/CISP.2011.6100785","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100785","url":null,"abstract":"Objective The aim of this study was to examine coherence between antagonistic elbow muscles and thus to explore the characteristics of common neural inputs to co-contracting agonistic elbow muscles during sustained isometric fatiguing contraction. Method Ten healthy male subjects participated in this study. With elbow flexion muscle at 50% maximum voluntary contraction (MVC) to induce muscle fatigue, surface electromyographic signals (sEMG) was collected from biceps brachii (BB) and brachioradialis (BR). sEMG was divided into two segments and coherence analysis was conducted between BB and BR electromyographic signals in both segments. Result A significant increase in EMG-EMG coherence in the beta frequency bands was observed in the second half of the fatiguing contraction compared to the first half of the fatiguing contraction. No significant difference was observed in the tremor and gamma band coherence between the first and the second half of the fatiguing contraction. Conclusion During the sustained isometric fatiguing contraction following the target force level at 50% MVC, a significant difference was found between the first and second half of the fatiguing contraction in Beta Band, which indicates the increased coupling between synchronized cortical neurons and the motoneuron pool. This suggests an increase in common neural input across these muscles, which may be cortical in origin.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127415718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Study on 3G-based telecommuting mobile monitoring system 基于3g的远程办公移动监控系统研究

2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6099919

Haijun Chen, Ling Xiao, Haoyu Jin, Z. Wen

引用次数: 0

Multiscale multifractal analysis of 12-lead ECG signals of mice based on wavelet transform and coarse-grained approach 基于小波变换和粗粒度方法的12导联小鼠心电信号多尺度多重分形分析

2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100746

Chengyu Huo, Xiaofei Ma, Xiaolin Huang, X. Ning, Jun Wang, Xiaojun Qiu

{"title":"Multiscale multifractal analysis of 12-lead ECG signals of mice based on wavelet transform and coarse-grained approach","authors":"Chengyu Huo, Xiaofei Ma, Xiaolin Huang, X. Ning, Jun Wang, Xiaojun Qiu","doi":"10.1109/CISP.2011.6100746","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100746","url":null,"abstract":"In recent years, the nonlinear analysis of electrocardiogram (ECG) signals using multifractal theory has been proved to be effective. In order to further study the features in normal and pathological ECG signals with multifractal analysis, drugs experiments were conducted on mice. Mice received various drugs to imitate different physiological and pathological conditions, and the distributions of the singularity strength range with different scale factors from the 12-lead ECG signals of healthy and drug injected mice were calculated, using coarse-grained approach and wavelet transform respectively. The results showed that there is a certain range of characteristic frequency in the curve of singularity strength range versus scale factors from the multiscale multifractal analysis results on mice ECG signals. In this range, the singularity strength range Δα gets the maximum value, which can best represent the complex fractal structures and dynamic characteristics of the heart, and be most sensitive to distinguish various physiological and pathological states.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115528355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Image quality analysis of vibration effects in C-arm flat panel X-ray imaging c臂平板x射线成像中振动效应的图像质量分析

2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100541

R. Snoeren, J. N. Kroon, P. D. De with

{"title":"Image quality analysis of vibration effects in C-arm flat panel X-ray imaging","authors":"R. Snoeren, J. N. Kroon, P. D. De with","doi":"10.1109/CISP.2011.6100541","DOIUrl":"https://doi.org/10.1109/CISP.2011.6100541","url":null,"abstract":"The motion of C-arm scanning X-ray systems may result in vibrations of the imaging sub-system. In this paper, we connect C-arm system vibrations to Image Quality (IQ) deterioration for 2D angiography and 3D cone beam X-ray imaging, using large Flat Panel detectors. Vibrations will affect the projected image sharpness and the projected image position. The former will appear as blur and the latter as image shift for the 2D projection radiography process. If this phenomenon is not corrected in the post processing (pixel shift), it will manifest as subtraction registration artifacts. We will model and verify the effect of vibrations in 2D subtracted and non-subtracted flat panel imaging. Two effects on 3D IQ are modeled: (1) vibrations during an actual acquisition run inducing movement blur and (2) C-arm movement calibration errors in the iso-center giving remnant blur. The model establishes a relation between vibration amplitudes and image quality for dominant system Eigen-frequencies. The validity and accuracy of the model for 2D and 3D imaging modes is supported and demonstrated by experiments and even provides sufficient quality for defining image quality requirements.","PeriodicalId":301048,"journal":{"name":"2011 4th International Congress on Image and Signal Processing","volume":"222 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115532573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Study of carrier tracking for high dynamic M-ary spread spectrum signals 高动态扩频信号的载波跟踪研究

2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6099996

Liechao Huang, Tianqi Zhang, Juan Bai, Fangqing Tan

引用次数: 1

The designation of robot exhibition system based on visual navigation 基于视觉导航的机器人展示系统设计

2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100583

Hui-ming Lv, J. Dong

引用次数: 0

An improved scheme for Criminisi's inpainting algorithm 一种改进的Criminisi图像绘制算法

2011 4th International Congress on Image and Signal Processing Pub Date : 2011-12-12 DOI: 10.1109/CISP.2011.6100594

Song Zhang, Xuya Zhou

引用次数: 10