3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the最新文献_第2页

Design and implementation of a median filtering algorithm using the median cost function 使用中值代价函数的中值滤波算法的设计与实现

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the Pub Date : 2003-09-18 DOI: 10.1109/ISPA.2003.1296418

A. Burian, J. Takala, M. Ylinen

引用次数: 2

Distributed interaction processing and visualization of 3D scenes in realtime 分布式交互处理和实时三维场景可视化

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the Pub Date : 2003-09-18 DOI: 10.1109/ISPA.2003.1296890

Jan-Michael Frahm, Jan-Friso Evers-Senne, R. Koch

引用次数: 2

Emergent document semantics 紧急文档语义

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the Pub Date : 2003-09-18 DOI: 10.1109/ISPA.2003.1296906

D. Sreenath, W. Grosky

引用次数: 1

Color and texture priors in active contours for model-based image segmentation 基于模型的图像分割中活动轮廓的颜色和纹理先验

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the Pub Date : 2003-09-18 DOI: 10.1109/ISPA.2003.1296364

Q. Zhou, L. Ma, D. Chelberg, M. Celenk

{"title":"Color and texture priors in active contours for model-based image segmentation","authors":"Q. Zhou, L. Ma, D. Chelberg, M. Celenk","doi":"10.1109/ISPA.2003.1296364","DOIUrl":"https://doi.org/10.1109/ISPA.2003.1296364","url":null,"abstract":"A solution to the problem of model-based image segmentation by integrating prior color and texture information into a parametric active contour model is proposed in this paper. The vector flow field technique is adopted as the computational scheme because of its large effective capture range. Color and texture priors are modeled in a uniform way to generate a potential field and its associated vector flow field for the repetitive application of the gradient vector field (GVF). The initialization of the snake is decided by studying the shape properties of the potential field. The shape information can be utilized to avoid unnecessary initializations caused by disturbing background similar color and texture features to the model object. The potential field is also valuable for determining the weights for integrating the color and texture based vector flow field and the edge based vector flow field. With the proper integration weights, the snake evolved on the combined vector flow field can bypass strong edges in the background and stop correctly on the object's boundary. Experimental results are shown on real scenes with complex backgrounds.","PeriodicalId":218932,"journal":{"name":"3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128745632","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: 7

Comparative evaluation of probabilistic neural network versus support vector machines classifiers in discriminating ERP signals of depressive patients from healthy controls 概率神经网络与支持向量机分类器在区分抑郁症患者与健康对照ERP信号中的比较评价

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the Pub Date : 2003-09-18 DOI: 10.1109/ISPA.2003.1296422

I. Kalatzis, N. Piliouras, E. Ventouras, C. Papageorgiou, A. Rabavilas, D. Cavouras

{"title":"Comparative evaluation of probabilistic neural network versus support vector machines classifiers in discriminating ERP signals of depressive patients from healthy controls","authors":"I. Kalatzis, N. Piliouras, E. Ventouras, C. Papageorgiou, A. Rabavilas, D. Cavouras","doi":"10.1109/ISPA.2003.1296422","DOIUrl":"https://doi.org/10.1109/ISPA.2003.1296422","url":null,"abstract":"This paper describes the design of classification system capable of distinguishing patients with depression from normal controls by event-related potential (ERP) signals using the P600 component. Clinical material comprised twenty-five patients with depression and an equal number of gender and aged-matched healthy controls. All subjects were evaluated by a computerized version of the digit span Wechsler test. EEC activity was recorded from 15 scalp electrodes and recordings were digitized for further computer processing. Features related to the shape of the waveform were generated using a dedicated custom software interface system developed in C++ for the purposes of this work. A software classification system was designed, consisting of (a) two classifiers, the probabilistic neural network (PNN) and the support vector machines (SVM), (b) two routines for feature reduction and feature selection, and (c) an overall system evaluation routine, comprising the exhaustive search and the leave-one-out methods. Highest classification accuracies achieved were 92% for the PNN and 96% for the SVM, using the 'latency/amplitude ratio' and 'peak-to-peak slope' two-feature combination. In conclusion, employing computer-based pattern recognition techniques with features not easily evaluated by the clinician, patients with depression could be distinguished from healthy subjects with high accuracy.","PeriodicalId":218932,"journal":{"name":"3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128806117","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: 10

Curvature-based rational surface model for the detection of age and gender-related diversity in cortical morphology 基于曲率的有理面模型用于皮质形态学中年龄和性别相关多样性的检测

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the Pub Date : 2003-09-18 DOI: 10.1109/ISPA.2003.1296932

R. Meegama, J. Rajapakse

引用次数: 1

Adaptive regularization for resolution restoration of multiframes considering subpixel contributions 考虑亚像素贡献的多帧分辨率恢复自适应正则化

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the Pub Date : 2003-09-18 DOI: 10.1109/ISPA.2003.1296416

M. Zibetti, J. Mayer

引用次数: 2

Fast face detection using hash table of large set of templates 快速人脸检测使用哈希表的大模板集

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the Pub Date : 2003-09-18 DOI: 10.1109/ISPA.2003.1296361

Ben-Zion Shaick, L. Yaroslavsky

引用次数: 1

A hierarchical Bayesian learning framework for autoregressive neural network modeling of time series 时间序列自回归神经网络建模的层次贝叶斯学习框架

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the Pub Date : 2003-09-18 DOI: 10.1109/ISPA.2003.1296406

F. Acernese, R. Rosa, L. Milano, F. Barone, A. Eleuteri, R. Tagliaferri

引用次数: 1

Automatic polyp detection of colon using high resolution CT scans 使用高分辨率CT扫描自动检测结肠息肉

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the Pub Date : 2003-09-18 DOI: 10.1109/ISPA.2003.1296962

J. Dehmeshki, H. Amin, Wing Wong, M. E. Dehkordi, N. Kamangari, M. Roddie, J. Costelo

引用次数: 2