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Stereo Analysis Extension Based on BRDF Reciprocity 基于BRDF互易的立体分析扩展
16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06) Pub Date : 2006-02-27 DOI: 10.1109/CONIELECOMP.2006.56
A. Morales-Reyes, M. Arias-Estrada
{"title":"Stereo Analysis Extension Based on BRDF Reciprocity","authors":"A. Morales-Reyes, M. Arias-Estrada","doi":"10.1109/CONIELECOMP.2006.56","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2006.56","url":null,"abstract":"This paper presents an extension of the binocular technique which considers reciprocal reflectance of surfaces. This particular property allows to recover depth information for surfaces where others stereo techniques failed, for example, textureless and highly specular surfaces. The consideration of an arbitrary BRDF (Bidirectional Reflectance Distribution Function) improves conventional stereo algorithms, in such a way that explicit or implicit assumptions about a reflectance function are not necessary and dense depth maps are obtained. Fixed specularities and correspondence between half-occluded regions reduce processing complexity which is an important advantage of this methodology. This paper provides a general geometry assembly to this approach extending its applicability to some specific areas where accurate depth measures are required. Several results from our implementation are shown using rendered ray-tracing stereo images.","PeriodicalId":371526,"journal":{"name":"16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132807346","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: 0
Stability Analysis in a Transmission Line With Nonlinear Elements Using Lyapunov’s Method 用Lyapunov’s方法分析具有非线性单元的输电线路的稳定性
16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06) Pub Date : 2006-02-27 DOI: 10.1109/CONIELECOMP.2006.55
S. A. Rodríguez, R. Rodriguez, J. Vázquez-González
{"title":"Stability Analysis in a Transmission Line With Nonlinear Elements Using Lyapunov’s Method","authors":"S. A. Rodríguez, R. Rodriguez, J. Vázquez-González","doi":"10.1109/CONIELECOMP.2006.55","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2006.55","url":null,"abstract":"This paper shows a basic methodology for an equilibrium points based analysis of a nonlinear electrical systems. The purpose is formulate alternative sufficient and necessary conditions to guarantee local asymptotic stability. Equilibrium points take an important role in the modeling and stability analysis of dynamical systems. As a matter of fact, they are the base for developing lot of conceptual tools, like phase portraits, limit cycles, periodic orbits and bifurcation analysis. The modeling and simulation of the effect of a nonlinear oscillator attached to the end of a lumped transmission line parameters is described. The nonlinear oscillator is obtained by a shunt connection between a tunnel diode and a capacitor. The tunnel diode was chosen because is a semiconductor with a negative resistance region, having nonlinear characteristics with multiple equilibrium points. This points of the system were determined through direct application of the Lyapunov’s stability theorems.","PeriodicalId":371526,"journal":{"name":"16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130534160","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
A Simple Extension of Ziegler-Nichols’ Method Based on Damped Oscillations ziegler - nichols的简单推广’基于阻尼振荡的方法
16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06) Pub Date : 2006-02-27 DOI: 10.1109/CONIELECOMP.2006.8
Ž. Jurić, B. Perunicic-Drazenovic
{"title":"A Simple Extension of Ziegler-Nichols’ Method Based on Damped Oscillations","authors":"Ž. Jurić, B. Perunicic-Drazenovic","doi":"10.1109/CONIELECOMP.2006.8","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2006.8","url":null,"abstract":"This paper proposes a simple extension of the well-known Ziegler-Nichols’ (ZN) method. As in the standard ZN method, the experiment may be performed using the controller only, without any extra equipment. But, in opposite to the ZN method, the experiment may be performed using damped oscillations. Also, the proposed method allows more complex models of the plant, so a better tuning may be obtained.","PeriodicalId":371526,"journal":{"name":"16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06)","volume":"287 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122002529","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: 2
VoWF (Vo-IP over Wi-Fi) VoWF(通过Wi-Fi的Vo-IP)
16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06) Pub Date : 2006-02-27 DOI: 10.1109/CONIELECOMP.2006.63
J. M. Lozano-Gendreau, A. Halabi, M. Choueiri, V. Besong
{"title":"VoWF (Vo-IP over Wi-Fi)","authors":"J. M. Lozano-Gendreau, A. Halabi, M. Choueiri, V. Besong","doi":"10.1109/CONIELECOMP.2006.63","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2006.63","url":null,"abstract":"Wireless telephony has become very popular in the past few years. However, the high costs of cellular systems make it necessary to find different technologies that can reduce the prices while keeping the efficiency and mobility. For this reason we explored the advantages and disadvantages of VoIP over Wi-Fi (VoWF), which means using wireless networks based on the IP protocol (like internet) to transmit voice. In this project we tested the performance of VoWF using Skype and X-Lite which are VoIP softwares and demonstrated to have similar behavior. We also used a software called WirelessMon that allowed us to monitor the status of the wireless network. Although VoWF has many advantages like low cost and easy implementation, we concluded that this technology is not ready to substitute cellular systems like GSM because it has three major problems which are: long handoff time, low range and low capacity. However VoWF can be a good complement for GSM.","PeriodicalId":371526,"journal":{"name":"16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129548519","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: 6
Apple Classification System with EZW and Daubechies D4 Lossy Image Compression 苹果分类系统与EZW和Daubechies D4有损图像压缩
16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06) Pub Date : 2006-02-27 DOI: 10.1109/CONIELECOMP.2006.16
O. Vergara-Villegas, Raúl Pinto Elías, V. Sánchez
{"title":"Apple Classification System with EZW and Daubechies D4 Lossy Image Compression","authors":"O. Vergara-Villegas, Raúl Pinto Elías, V. Sánchez","doi":"10.1109/CONIELECOMP.2006.16","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2006.16","url":null,"abstract":"This paper presents the model and the implementation of an object classification system that with the difference to the conventional systems uses images coming from a lossy compress/decompress process. The domain transformation is made with Daubechies D4 wavelet transform and the coefficients coding is made using the Embedded Zerotree Wavelet (EZW) algorithm. The proposed model offers as main advantages a saving of until 50 % of the image total storage space and even with the information loss the images are visually very similar to the originals. The system allows obtaining very near classification results to those results obtained using the original images. In order to test the model we present the problem of apple classification. Apples are classified in two categories: bad and good quality according to specified criteria which are evaluated with a process of extraction and selection of features and the use of a voting algorithm. The results presented demonstrated that the model allows good classification results with the so important advantage that represents the storage space saving.","PeriodicalId":371526,"journal":{"name":"16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123051814","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: 3
WISBuilder: A Framework for Facilitating Development of Web-Based Information Systems WISBuilder:一个促进基于web的信息系统发展的框架
16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06) Pub Date : 2006-02-27 DOI: 10.1109/CONIELECOMP.2006.65
Angel Israel Ortiz-Cornejo, H. Cuayáhuitl, C. Perez-Corona
{"title":"WISBuilder: A Framework for Facilitating Development of Web-Based Information Systems","authors":"Angel Israel Ortiz-Cornejo, H. Cuayáhuitl, C. Perez-Corona","doi":"10.1109/CONIELECOMP.2006.65","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2006.65","url":null,"abstract":"This paper presents WISBuilder, a framework that investigates an approach for facilitating the development of Web-based Information Systems. The approach is based on the Model-View-Controller and Generative Programming paradigms. Firstly, the WISBuilder framework applies the following separation of tasks: structure, business-logic and visual style. The system specification is performed with two high-level XML-based languages: WSML and WAML. Secondly, WISBuilder proposes the creation of reusable code templates for each high-level language. Thirdly, WISBuilder uses predefined code templates for expanding the system specification in high-level annotations. The goals of this framework are twofold: to speed-up development by writing less code and development in parallel; and to promote software reusability by reusing generic code templates. Experimental results with three small-scale Webbased information systems show an important reduction of programming effort, using the proposed framework in comparison with an equivalent manual coding. These results show initial evidence that software development based on both paradigms is a good practice.","PeriodicalId":371526,"journal":{"name":"16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122397371","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: 4
Control System Over Power Line 电力线控制系统
16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06) Pub Date : 2006-02-27 DOI: 10.1109/CONIELECOMP.2006.26
M. Chauca, Juan C. Seminario Castro, Walter Flores Matias, Eder Pacheco Aaron
{"title":"Control System Over Power Line","authors":"M. Chauca, Juan C. Seminario Castro, Walter Flores Matias, Eder Pacheco Aaron","doi":"10.1109/CONIELECOMP.2006.26","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2006.26","url":null,"abstract":"It is a basic prototype of a smart control system for electric energy. The circuit controls the provision of energy in each receiving point of the system like electrical lamps, devices and other devices using the mains like mass media. In this prototype the power station receives the data entered by keyboard, soon these data codifies them, generates a frequency, modulates them and transmits on the alternating signal through the existing electrical wiring towards the receiver located in the same mains which demodulates, detects the frequency and decode the data that via optical connection control the firing of tríac activating or deactivating the electrical provision towards the load connected in the receiver. For his complete version one projects to have a programmable power station, that accepts originating data of a PC (local program or page Web), via telephone line (conventional telephony or IP), in these cases the data enter through an interphase. The distance present average of this prototype is of 70 mts, optimizing its yield a maximum distance is considered of 100mts of wiring of the horizontal and vertical mains and it cost is approximately $ 20. (Tx + 1Rx)","PeriodicalId":371526,"journal":{"name":"16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121127488","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: 0
Clustering and Artificial Neural Networks as a Tool to Generate Membership Functions 聚类和人工神经网络作为生成隶属函数的工具
16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06) Pub Date : 2006-02-27 DOI: 10.1109/CONIELECOMP.2006.22
A. M. Sánchez, Ricardo Álvarez, J. C. Moctezuma, S. Sánchez
{"title":"Clustering and Artificial Neural Networks as a Tool to Generate Membership Functions","authors":"A. M. Sánchez, Ricardo Álvarez, J. C. Moctezuma, S. Sánchez","doi":"10.1109/CONIELECOMP.2006.22","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2006.22","url":null,"abstract":"This work show an application of the classical clustering algorithm, c-mean mixed with Artificial Neural Networks to build membership functions of fuzzy systems, the simulations were done with MATLAB.","PeriodicalId":371526,"journal":{"name":"16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126240073","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: 12
A Hierarchical Approach for Modelling an MPLS Network Using VHDL 基于VHDL的MPLS网络分层建模方法
16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06) Pub Date : 2006-02-27 DOI: 10.1109/CONIELECOMP.2006.7
M. Minero-Muñoz, V. Aquino
{"title":"A Hierarchical Approach for Modelling an MPLS Network Using VHDL","authors":"M. Minero-Muñoz, V. Aquino","doi":"10.1109/CONIELECOMP.2006.7","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2006.7","url":null,"abstract":"This paper presents a hierarchical approach for modelling an MPLS (Multi-Protocol Label Switching) network using VHDL (Very high-speed integrated circuits Hardware Description Language). The MPLS technology is used because it offers a better performance and flexibility than IP routing. Six MPLS switches are modelled and simulated as follows. A label is assigned to the IP packet header by the first switch, which indicates the route that the frame must follow in the MPLS network. This label is then used by the MPLS middle switches for its management inside the network. Four middle switches change the label depending on the destination of the packet. The final switch removes the label of the IP packet header and the frame continues its path outside the MPLS network. Simulation results show that this approach allows the simulation of large networks consisting of even 256 MPLS switches.","PeriodicalId":371526,"journal":{"name":"16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130674260","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
Integrating Advanced GLSL Shading and XML Agents into a Learning-Oriented 3D Engine 集成先进的GLSL着色和XML代理到一个面向学习的3D引擎
16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06) Pub Date : 2006-02-27 DOI: 10.1109/CONIELECOMP.2006.35
Edgar Velázquez-Armendáriz, Erik Millán
{"title":"Integrating Advanced GLSL Shading and XML Agents into a Learning-Oriented 3D Engine","authors":"Edgar Velázquez-Armendáriz, Erik Millán","doi":"10.1109/CONIELECOMP.2006.35","DOIUrl":"https://doi.org/10.1109/CONIELECOMP.2006.35","url":null,"abstract":"Most of the existing 3D engines are overwhelmingly complex and do not integrate support for virtual characters. We have developed a teaching oriented 3D engine with support for such tasks as model loading and setup, shadows, level of detail as well as advanced shading techniques using the OpenGL Shading Language (GLSL), developed following Object-Oriented techniques and built upon standard open source components. We have also extended previous work by seamlessly incorporating XML driven crowds which can interact with the elements of the environment. The resulting system is a highly capable, yet easy to learn and use 3D engine which may be used for students in Computer Graphics to quickly build interactive applications and to provide a framework to begin using specialized shading techniques with GLSL. The engine also serves as a motivating development environment for creating visually attractive crowds of agents, aimed at students of introductory Artificial Intelligence courses.","PeriodicalId":371526,"journal":{"name":"16th International Conference on Electronics, Communications and Computers (CONIELECOMP'06)","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115598155","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: 0
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