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ON THE GENErALIZED INVErSE NEVILLE-TYpE MATrIX-VALUED rATIONAL INTErpOLANTS

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Journal of Computational Mathematics 2003年第2期21卷 157-166页

作者： Zhibing Chen9+(Dep.r.ment of Mathematics, Normal College, shenzhen univ.rsity, shenzhen 518060, china) Dep.r.ment of Mathematics Normal College Shenzhen University Shenzhen 518060

A new kind of matrix-valued rational interpolants is recursively established by means of generalized Samelson inverse for matrices, with scalar numerator and matrix-valued denominator. In this respect, it is essentially different from that of the previous works [7, 9], where the matrix-valued rational interpolants is in Thiele-type continued fraction form with matrix-valued numerator and scalar denominator. For both univ.riate and bivariate cases, sufficient conditions for existence, characterisation and uniqueness in some sense are proved respectively, and an error formula for the univ.riate interpolating function is also given. The results obtained in this pap.r.are illustrated with some numerical examples.

关键词： Generalized inverse for matrices Neville-type rational interpolants.

Image corner detection using topology learning

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The Journal of china univ.rsities of posts and Telecommunications 2010年第6期17卷 101-105页

作者： SUN Wei,YANG Xuan College of Computer Science and Software Engineering,shenzhen univ.rsity,shenzhen 518060,{4. [a] College of Computer Science Software Engineering Shenzhen University Shenzhen 518060 China

Image corner detection plays an imp.r.ant role in image analysis and recognition. This pap.r.presents a novel corner detector based on the growing neural gas （GNG） network and this proposed detector is called GNG-C. With the GNG network,image topology information can be learned and used to implement corner detection. The GNG-C ap.r.ach can be described as consisting of the following steps. First,a canny edge detector is used to acquire the contour information of the input image. This edge information is used to train a modified GNG network. A special stopping criterion is defined to terminate network learning. Second,vectors formed between network nodes and their neighbors are used to measure curvatures. Third,dynamic regions of supp.r. （rOS） are determined based on these curvatures. These rOS are used to sup.r.ss curvature noise. The curvature values of the nodes are then analyzed to estimate the candidate corners. Finally,the candidates are distilled by a non-maxima sup.r.ssion process to obtain the final set of corners. Exp.r.ments on both artificial and real images show that the proposed corner detection method is feasible and effective.

关键词： corner detection GNG topology learning self-organizing map

Study on Graphic Distortion in Laser Display

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Chinese Journal of Lasers 1999年第6期8卷 30-33页

作者： JIANG Ming  YU Jianhua LUO Xiaoling QIU Junlin  LI Jingzhen (Dep.r.ment of optoelectronics, shenzhen univ.rsity, shenzhen 518060, {4.  The State Key Laboratory of Laser Technology, Huazhong univ.rsity of Science 深圳大学光电子系广东深圳 518060 华中理工大学激光技术国家重点实验室湖北武汉 430074 华中理工大学激光技术国家重点实验室湖北武汉深圳大学光电子系广东深圳

The mechanism of the graphics distrotion in a laser display system was studied. Based on the mathematical analysis, the pincushion and linear distortions were calculated. Theoretical results agree well with the exp.r.mental observation. By tracing laser beams from image plan back to scanners, a relation between the image points on the screen and the scan angles was built. Thus, it has been able to rectify the scanning distortions by computer software effectively.

关键词： laser display graphic distortion optical scanning galvanometer

Multispectral image edge detection via Clifford gradient

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Science china(Information Sciences) 2012年第2期55卷 260-269页

作者： XU Chen2,LIU Hui1,CAO WenMing1 & FENG JiQiang2 1College of Information Engineering,shenzhen univ.rsity,shenzhen 518060,{4. 2inst.tute of Intelligent Computing Science,shenzhen univ.rsity,shenzhen 518060,{4. 2. inst.tute of Intelligent Computing Science Shenzhen University Shenzhen 518060 China1. College of Information Engineering Shenzhen University Shenzhen 518060 China

The edge detection of a multispectral image with a mass of image information is theoretically expected to give a more accurate *** algebra is more suitable for processing multidimensional data and expressing the data association than general ***,the basic prop.r.ies of Clifford algebra are ***,the Clifford algebra description of a multispectral image is ***,a novel multispectral image edge detection algorithm is proposed in terms of the Clifford *** the first two exp.r.ments,comp.r.son of the detail achieved by the new algorithm with that from the maximal entropy edge detection algorithm reveals that the edge detection based on Clifford gradient is better at retaining and identifying edge information of the multispectral image than the maximal entropy edge detection *** exp.r.ments using tuberculosis CT image show that the new algorithm has clinical value in reducing risk of misdiagnosis.

关键词： multispectral image edge detection Clifford gradient

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权利表见理论及其法哲学基础

深圳大学学报（人文社会科学版） 2004年第4期21卷 56-61页

作者：丁南深圳大学法学院广东深圳518060

权利表见理论指在交易关系中凡是能够识别为典型的权利、意思或主体资格等的表征形式,且当该表征形式与交易本来的真实状况不相符合时,法律为保护交易相对人对表征的信赖以及交易的安全与效率,强制该交易发生表征为真实状况时的法律效... 详细信息

权利表见理论指在交易关系中凡是能够识别为典型的权利、意思或主体资格等的表征形式,且当该表征形式与交易本来的真实状况不相符合时,法律为保护交易相对人对表征的信赖以及交易的安全与效率,强制该交易发生表征为真实状况时的法律效果。权利表见理论体现了民法制度的变迁,其法哲学基础是以保护“信赖”、“交易安全”为目标的“社会利益”学说对以“自主决定和“自己责任”为原则的“自由意志”理论的扬弃。

关键词：权利表见理论自由意志信赖保护交易安全

LONG TIME ASYMpTOTIC BEHAVIOr OF SOLUTION OF DIFFErENCE SCHEME FOr A SEMILINEAr p.r.BOLIC EQUATION (Ⅱ)

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Journal of Computational Mathematics 1998年第5期16卷 571-576页

作者： Hui Feng(shenzhen univ.rsity Normal College, shenzhen 518060, china Laboratorp of Computational physics, {4.tute of Applied physics and Computational Mathematics,p.O.Box 8009, Beijing 100088, china )Long-jnn Shen(Laboratory of Computational physics, In shenzhen univ Wormal Coll Shenzhen 518060 Peoples R China inst.Appl phys & Computat Math Lab Computat Phys Beijing 100088 Peoples R China

In this pap.r.we prove the solution of explicit difference scheme for a semilinear p.r.bolic equation converges to the solution of difference scheme for the relevant nonlinear stationary problem as t→∞. For nonlinear p.r.bolic problem, we obtain the long time asymptotic behavior of its discrete solution which is analogous to that of its continuous solution. For simplicity, we discuss one-dimensional problem.

关键词： Asymptotic behavior Explicit difference scheme Semilinear p.r.bolic equation.

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论邓小平的经济特区思想

深圳大学学报（人文社会科学版） 2004年第4期21卷 15-20页

作者：钟坚深圳大学经济学院广东深圳518060

邓小平亲自倡导和设计我国的经济特区,两次南下考察了经济特区,发表了一系列具有历史震撼力的重要讲话,用自己的言行在经济特区发展最困难的时刻给予了最大的支持,并由此形成了完整的经济特区思想。邓小平经济特区思想,是邓小平理论中... 详细信息

邓小平亲自倡导和设计我国的经济特区,两次南下考察了经济特区,发表了一系列具有历史震撼力的重要讲话,用自己的言行在经济特区发展最困难的时刻给予了最大的支持,并由此形成了完整的经济特区思想。邓小平经济特区思想,是邓小平理论中最具特色的组成部分和建设中国特色社会主义理论的重要内容,具有重要的理论价值和实践意义。

关键词：邓小平经济特区思想改革开放

An Efficient Conversion Scheme for Enhancing Security of Diffie-Hellman-Based Encryption

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Wuhan univ.rsity Journal of Natural Sciences 2010年第5期15卷 415-421页

作者： ZHANG Xi,HANG Huanhua College of Computer and Software,shenzhen univ.rsity,shenzhen 518060,Guangdong,{4. College of Computer and Software Shenzhen University Shenzhen Guangdong China

Nowadays,indistinguishability against.adaptive chosen-ciphertext attacks（IND-CCA2） has been widely accepted as a prop.r.security criterion for encryption *** this pap.r.an efficient conversion is proposed to satisfy the IND-CCA2 *** uses the random oracle methodology and the idea of hybrid encryption,and can enhance any Diffie-Hellman based encryption scheme,which is only one-way under plaintext-checking *** with other existing conversions,this conversion has the advantages of short ciphertext and low computation overhead,especially when it is applied to the multi-recipient setting.

关键词： Diffie-Hellman-based encryption adaptive chosenciphertext attack multi-recipient setting randomness-reusing

从体制到程序——中国直接选举制度规则与实践的落差分析

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深圳大学学报（人文社会科学版） 2004年第4期21卷 43-46页

作者：唐娟深圳大学管理学院广东深圳518060

随着中国公民政治参与的扩大化和理性化,现行的人民代表直接选举的文本制度在实际运行中暴露出许多缺陷。其中一些缺陷内生于文本本身,而另一些则外发于操作过程中,修改文本、改革传统的操作方式,已经势在必行。

关键词：规则人民代表直接选举制度