检索结果-内蒙古大学图书馆

10th international conference on Image Analysis and Processing, ICIAP 1999

作者： Anoraganingrum, Dwi University of Bremen Centre for Computing Technologies Computer Graphics Group Universitätsallee 21-23 D-28359 Bremen Germany

ISBN: (纸本)0769500404

this paper describes a part of current research work on an automated cell tracking (ACT) project with the aim of tracking the movement of representative cells in order to determine the activity of the cell once certain medical substances have been injected. A major requirement for this project is an efficient method to segment cell images. this work shows that the combination methods of the median filter and the mathematical morphology operation such as dilation and erosion are adaptable and can be optimized to improve the segmentation result. the experimental results show that this method is suitable for segmentation based on edge detection of melanomas (tumor cells) and lymphocytes (blood cells) and the performance of this method is comparable to several edge detection methods such as Sobel, Prewitt, Roberts and Laplacian of Gaussian. © 1999 IEEE.

关键词： Median filters

来源：评论

学校读者我要写书评

暂无评论

Image indexing using weighted color histogram

Image indexing using weighted color histogram

引用

10th international conference on Image Analysis and Processing, ICIAP 1999

作者： Park, Du-Sik Park, Jong-Seung Kim, Tae Yong Han, Joon Hee Signal Processing Lab. Samsung A.I.T. Yongin Korea Republic of Human Computing Research Dept. ETRI Taejon Korea Republic of Department of Computer Science and Engineering POSTECH San 31 Hyo-Ja-Dong Pohang 790-784 Korea Republic of

ISBN: (纸本)0769500404

Image indexing is the process of image retrieval from databases of images or videos based on their contents. Specifically histogram-based algorithms are considered to be effective for color image indexing. We suggest a new method of color space quantization in the CIELUV color space, named weighted LUV quantization. With this method, each bin in the LUV space has a different weighting factor, which is applied to the histogram intersection. the weighted LUV histogram intersection provides the advantage of perceptual uniformity of the CIELUV color space. An additional advantage is the consideration of perceptual sensitivity to more saturated colors by the use of a weighting factor. © 1999 IEEE.

关键词： Image retrieval

来源：评论

学校读者我要写书评

暂无评论

Social and content-based information filtering for a Web graphics recommender system

Social and content-based information filtering for a Web gra...

引用

10th international conference on Image Analysis and Processing, ICIAP 1999

作者： Tatemura, Junichi Santini, Simone Jain, Ramesh Institute of Industrial Science University of Tokyo 7-22-1 Roppongi Minato-ku Tokyo 106-8558 Japan Visual Computing Lab University of California San Diego 9500 Gilman Drive San Diego CA 92093-0407 United States

ISBN: (纸本)0769500404

Existing social or content-based approaches to filtering-by-example are difficult to apply to image data. To realize a filtering-by-example system for image data, we propose a new approach to combine social and content-based filtering techniques. A content-based sub-system provides two types of clusters, equivalent items and virtual users, to overcome a disadvantage of social filtering, that is, a shortage of ratings. Since items similar in visual properties are not always similar in user tastes, a social sub-system controls the content-based sub-system with an evaluation function that estimates the validity of content-based clusters according to user ratings. Based on this approach, we have developed an image database, Web Graphics Navigator, that recommends graphics for Web pages according to the users' tastes. the database has been open to the public on the World-Wide Web to obtain user ratings. A preliminary observation of the user data shows promising results. © 1999 IEEE.

关键词： Information filtering

来源：评论

学校读者我要写书评

暂无评论

the VC-dimension of subclasses of pattern languages 10th

引用

10th international conference on Algorithmic Learning theory (ALT 99)

作者： Mitchell, A Scheffer, T Sharma, A Stephan, F Univ New S Wales Sch Engn & Comp Sci Sydney NSW 2052 Australia Univ Magdeburg FIN IWS D-39106 Magdeburg Germany Univ Heidelberg Inst Math D-69120 Heidelberg Germany

ISBN: (纸本)3540667482

this paper derives the Vapnik Chervonenkis dimension of several natural subclasses of pattern languages. For classes with unbounded VC-dimension, an attempt is made to quantify the "rate of growth" of VC-dimension for these classes. this is achieved by computing, for each n, size of the "smallest" witness set of n elements that is shattered by the class. the paper considers both erasing (empty substitutions allowed) and nonerasing (empty substitutions not allowed) pattern languages. For erasing pattern languages, optimal bounds for this size - within polynomial order - are derived for the case of 1 variable occurrence and unary alphabet, for the case where the number of variable occurrences is bounded by a constant, and the general case of all pattern languages. the extent to which these results hold for nonerasing pattern languages is also investigated. Some results that shed light on efficient learning of subclasses of pattern languages are also given.

关键词： Artificial intelligence

来源：评论

学校读者我要写书评

暂无评论

Whole word recognition in facsimile images 5

Whole word recognition in facsimile images

引用

5th international conference on Document Analysis and recognition, ICDAR 1999

作者： Sherkat, N. Allen, T.J. Department of Computing Nottingham Trent University Burton Street NottinghamNG1 4BU United Kingdom

ISBN: (纸本)0769503187

this paper presents the research carried out in producing a whole recognizor for cursive handwritten words in facsimile images. Two sets of handwritten data samples are collected and converted into facsimile images. the first set comprises approximately 1600 word images from 8 writers and is used for development purposes. the second set consists of approximately 2000 word images from 10 writers. this set is used for testing only. the algorithms for extraction of holistic features namely, vertical bars, holes and cups used in the recognizor are described. A series of test are carried out and the results are presented using a 200 word lexicon. the holistic recognizor produced 62% top rank and 82% in top 5 alternatives. When a lexicon of 1000 words was used these values reduced to 49% and 70% respectively. the future directions of the research for improvement of recognition rate are proposed. It is envisaged that definition of further features would improve the overall accuracy. © 1999 IEEE.

关键词： Facsimile

来源：评论

学校读者我要写书评

暂无评论

Representing and recognizing visual dynamic events with support vector machines

Representing and recognizing visual dynamic events with supp...

引用

international conference on Image Analysis and Processing

作者： M. Pittore C. Basso A. Verri INFM-DISI Università di Genova Italy INFM-DIFI Università di Genova Italy INFM-DISI Massachusetts Institute of Technology (US) Center for Biological and Computation Learning Università di Genova Italy

Support vector machines (SVM) have been recently introduced as techniques for solving pattern recognition and regression estimation problems. SVM are derived within the framework of statistical learning theory and combine a solid theoretical foundation with very good performances in several applications. In this paper we describe a system able to detect, represent, and recognize visual dynamic events from an image sequence. While the events are initially detected by means of low-level visual processing, both the representation and recognition stages are performed with SVM. therefore, the system is trained, instead of programmed, to perform the required tasks. the very good results obtained on real image sequences indicate that SVM can be profitably used for the construction of flexible and effective systems based on computer vision.

关键词： Support vector machines Event detection Computer vision pattern recognition Machine learning Image sequences Visual system Biology computing Statistical learning Solids

来源：评论

学校读者我要写书评

暂无评论

10th international Symposium on Algorithms and Computation, ISAAC 1999

10th International Symposium on Algorithms and Computation, ...

引用

10th Annual international Symposium on Algorithms and Computation, ISAAC 1999

ISBN: (纸本)3540669167

the proceedings contain 44 papers. the special focus in this conference is on Data Structure, Parallel and Distributed computing. the topics include: the engineering of some bipartite matching programs;a basic theory and calculus;static dictionaries supporting rank;multiple spin-block decisions;asynchronous random polling dynamic load balancing;hardness of approximating independent domination in circle graphs;constant-factor approximation algorithms for domination problems on circle graphs;ordered binary decision diagrams as knowledge-bases;the role of common knowledge in pattern formation by autonomous mobile robots;on-line load balancing of temporary tasks revisited;online routing in triangulations;the query complexity of program checking by constant-depth circuits;tree-like resolution is superpolynomially slower than dag-like resolution for the pigeonhole principle;efficient approximation algorithms for multi-label map labeling;approximation algorithms in batch processing;parallel algorithms for shortest paths and related problems on trapezoid graphs;approximation algorithms for some clustering and classification problems;how many people can hide in a terrain?;an online relocation problem on graphs;survivable networks with bounded delay;energy-efficient initialization protocols for ad-hoc radio networks;constructing the suffix tree of a tree with a large alphabet;further improved;a linear time algorithm for recognizing regular boolean functions;station layouts in the presence of location constraints;reverse center location problem;performance comparison of linear sieve and cubic sieve algorithms for discrete logarithms over prime fields and a new approximation algorithm for the capacitated vehicle routing problem on a tree.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Anisotropic diffusion as a preprocessing step for efficient image compression

Anisotropic diffusion as a preprocessing step for efficient ...

引用

14th international conference on pattern recognition, ICPR 1998

作者： Sziranyi, Tamás Kopilovic, Ivan Toth, Barnabas P. University of Veszprem Department of Image Processing and Neurocomputing Egyetem u. 10 H-8200 Veszprem Hungary Analogical and Neural Computing Laboratory Comp. and Automation Inst. Hungarian Academy of Sciences Kende u. 13-17 H-1111 Budapest Hungary

ISBN: (纸本)0818685123

Anisotropic diffusion is an image enhancement method. It is a nonlinear process which removes noise and irrelevant details while preserving the edges, i.e. it "extracts" the essential visual information. the paper proposes a useful application of anisotropic diffusion in image data compression. We argue that for high compression an anisotropic diffusion preprocessing results in better quality of the decoded image. © 1998 IEEE.

关键词： Image enhancement

来源：评论

学校读者我要写书评

暂无评论

Reusable software components for performability tools, and their utilization for web-based configurable tools 10th

Reusable software components for performability tools, and t...

引用

10th international conference on Modelling Techniques and Tools for Computer Performance Evaluation, Tools 1998

作者： Van Moorsel, Aad P. A. Huang, Yiqing Distributed Software Research Department Bell Laboratories Research Lucent Technologies 600 Mountain Ave Murray HillNJ07974 United States Center for Reliable and High-Performance Computing Coordinated Science Laboratory University of Illinois at Urbana-Champaign 1308 W. Main St UrbanaIL61801 United States

ISBN: (纸本)3540649492

this paper discusses software reusability strategies for performance and reliability modeling tools. Special emphasis is on web-embedded tools, and the potential interaction between such tools. We present the system analysis tools (SAT) application programming interface, which allows for quickly embedding existing tools in the web, and generally simplifies programming analysis tools by structured reuse. We also introduce the FREUD project, which has as primary aim to establish a single point of access to a variety of web-enabled tools. In addition, FREUD facilitates configurable web tools by allowing a user to select from the registered modeling formalisms, solvers and graphics tools, and by providing glue between the tools through scripting. We will argue that this form of reuse is particularly suitable for performability modeling tools because of their predictable usage pattern. © Springer-Verlag Berlin Heidelberg 1998.

关键词： Computer software reusability

来源：评论

学校读者我要写书评

暂无评论

Neural networks and fuzzy logic in clinical laboratory computing with application to integrated monitoring

引用

CLINICA CHIMICA ACTA 1996年第1期248卷 73-90页

作者： Guez, A Nevo, I ALBERT EINSTEIN MED CTR DEPT ANESTHESIOLPHILADELPHIAPA

We present an analysis of the computational features of neural networks and fuzzy logic architectures which attempts to explain their recent popularity as well as their drawbacks. Based upon many reports in several fields, we identify the key computational requirements in the clinical laboratory setting, and review several classical tools. In particular we make the observation that all of these needs may be viewed as a search for an appropriate mathematical mapping. We suggest that the neural networks promise as a universal function approximant is the main source of its apparent attractivity. We then describe a customized neural network architecture as a non-linear, adaptive signal processor for integrated monitoring. this architecture is employed in the Adaptive Real-Time Anesthesiologist Associate (ARTAA) system, which has been developed as a joint project at the Department of Anesthesiology, Albert Einstein Medical Center and the Electrical and Computer Engineering Department, Drexel University in Philadelphia, USA. In this application the neural network realizes a non-linear scalar map from the set of physiological signals to a vital function status (VFS) indicator. the system is now under clinical testing.

关键词： neural networks expert systems pattern recognition monitors integration smart alarms medical informatics anesthesia critical care patient monitoring

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：