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2008 4th International Conference on Intelligent Computer Communication and Processing最新文献

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3D femoral bone approximation in prosthesed hip radiographies 假体髋关节x线片中的三维股骨近似
2008 4th International Conference on Intelligent Computer Communication and Processing Pub Date : 2008-10-10 DOI: 10.1109/ICCP.2008.4648357
L. Florea, C. Vertan, C. Florea
{"title":"3D femoral bone approximation in prosthesed hip radiographies","authors":"L. Florea, C. Vertan, C. Florea","doi":"10.1109/ICCP.2008.4648357","DOIUrl":"https://doi.org/10.1109/ICCP.2008.4648357","url":null,"abstract":"The main cause for long-term failure in the case of the total hip replacement is osteolysis. Its prevention is based on early detection, as resulting from a regular follow-up by means of X-ray imaging. This paper proposes a method that uses a complete (actual bone, medullar area and prostheses) three-dimensional model of the femoral bone, in order to construct a projection function which approximates the radiography data. Elaborating on the model application we build tools for detecting the translations of the prostheses within the femoral bone and, respectively, modification of the bone structure, thus useful in early osteolysis detection.","PeriodicalId":169031,"journal":{"name":"2008 4th International Conference on Intelligent Computer Communication and Processing","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128054646","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
Curb segments detection with temporal filtering for urban driving scenarios 基于时间滤波的城市驾驶场景路边路段检测
2008 4th International Conference on Intelligent Computer Communication and Processing Pub Date : 2008-10-10 DOI: 10.1109/ICCP.2008.4648389
F. Oniga, S. Nedevschi, M. Meinecke
{"title":"Curb segments detection with temporal filtering for urban driving scenarios","authors":"F. Oniga, S. Nedevschi, M. Meinecke","doi":"10.1109/ICCP.2008.4648389","DOIUrl":"https://doi.org/10.1109/ICCP.2008.4648389","url":null,"abstract":"An improved approach for the detection of curbs (border of relevant traffic isles, sidewalks, etc) is presented, in the context of urban driving assistance systems. A rectangular elevation map is built from 3D dense stereo data. Edge detection is applied to the elevation map in order to highlight height variations. Temporal filtering is performed for edge points, based on the ego car motion, and only persistent points are validated. Relevant lines are extracted using a Hough accumulator. Curb segments are extracted from each relevant line by applying a set of proposed conditions. The algorithm was evaluated in an urban scenario. It works in real-time and provides robust detection of curbs.","PeriodicalId":169031,"journal":{"name":"2008 4th International Conference on Intelligent Computer Communication and Processing","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116018758","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
Camera motion estimation using monocular and stereo-vision 基于单目和立体视觉的摄像机运动估计
2008 4th International Conference on Intelligent Computer Communication and Processing Pub Date : 2008-10-10 DOI: 10.1109/ICCP.2008.4648385
S. Bota, S. Nedevschi
{"title":"Camera motion estimation using monocular and stereo-vision","authors":"S. Bota, S. Nedevschi","doi":"10.1109/ICCP.2008.4648385","DOIUrl":"https://doi.org/10.1109/ICCP.2008.4648385","url":null,"abstract":"A preliminary step for many computer vision algorithms is the estimation of camera motion. In this paper we describe and compare the results of three algorithms for camera motion estimation, which require various degrees of knowledge about the camera(s) used and the scenario. The first algorithm uses a single uncalibrated camera and it is useful for applications such as content based image retrieval. This method provides only qualitative results. The second algorithm uses a single calibrated camera in order to obtain quantitative results. The third approach uses a calibrated stereo camera pair, together with a hardware stereo reconstruction system.","PeriodicalId":169031,"journal":{"name":"2008 4th International Conference on Intelligent Computer Communication and Processing","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125675407","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
Robust camera calibration of soccer video using genetic algorithm 基于遗传算法的足球视频鲁棒摄像机标定
2008 4th International Conference on Intelligent Computer Communication and Processing Pub Date : 2008-10-10 DOI: 10.1109/ICCP.2008.4648363
R. Pourreza, M. Khademi, H. Pourreza, H. R. Mashhadi
{"title":"Robust camera calibration of soccer video using genetic algorithm","authors":"R. Pourreza, M. Khademi, H. Pourreza, H. R. Mashhadi","doi":"10.1109/ICCP.2008.4648363","DOIUrl":"https://doi.org/10.1109/ICCP.2008.4648363","url":null,"abstract":"This paper proposes an exact and robust genetic algorithm-based method for the calibration of soccer camera. According to the FIFA official soccer field layout we defined a field model for the soccer court. Camera calibration is done through finding the homography transform between the field model and the input frame which is followed with DLT decomposition. The intersection of lines in the field model and input frame form feature points and by means of a genetic algorithm, we found the correspondence between those points. Our algorithm was applied to a couple of soccer video frames and the achieved results demonstrate its robustness, accuracy and high performance.","PeriodicalId":169031,"journal":{"name":"2008 4th International Conference on Intelligent Computer Communication and Processing","volume":"69 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120822717","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
Observation and adaptation of a learning session based on a multi-agent system: An experiment 基于多智能体系统的学习过程观察与自适应:实验
2008 4th International Conference on Intelligent Computer Communication and Processing Pub Date : 2008-10-10 DOI: 10.1109/ICCP.2008.4648349
Gligor-Calin Loghin, T. Carron, J. Marty, M. Vaida
{"title":"Observation and adaptation of a learning session based on a multi-agent system: An experiment","authors":"Gligor-Calin Loghin, T. Carron, J. Marty, M. Vaida","doi":"10.1109/ICCP.2008.4648349","DOIUrl":"https://doi.org/10.1109/ICCP.2008.4648349","url":null,"abstract":"The work reported here deals with the observation of pedagogical activities in educational platforms. Userspsila behavior is observed through the traces of their activity. In this paper we present a multi-agent system designed to bring more flexibility to the observation of learnerspsila behavior in educational platforms. Our system enables the teacher to dynamically adapt his/her observation scenario during the learning session by possibly reconfiguring dynamically both the behavior and the topology of dedicated agents. We describe our multi-agent system with a dedicated agent configuration language and we illustrate it through an example of use in a real learning context.","PeriodicalId":169031,"journal":{"name":"2008 4th International Conference on Intelligent Computer Communication and Processing","volume":"125 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124668403","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
Hierarchical identity based cryptography for end-to-end security in DTNs 基于分层身份的ddn端到端安全加密
2008 4th International Conference on Intelligent Computer Communication and Processing Pub Date : 2008-10-10 DOI: 10.1109/ICCP.2008.4648376
Rabin K. Patra, S. Surana, S. Nedevschi
{"title":"Hierarchical identity based cryptography for end-to-end security in DTNs","authors":"Rabin K. Patra, S. Surana, S. Nedevschi","doi":"10.1109/ICCP.2008.4648376","DOIUrl":"https://doi.org/10.1109/ICCP.2008.4648376","url":null,"abstract":"Delay Tolerant Networks (DTN) arise whenever traditional assumptions about todaypsilas Internet such as continuous end-to-end connectivity, low latencies and low error rates are not applicable. These challenges impose constraints on the choice and implementation of possible security mechanisms in DTNs. The key requirements for a security architecture in DTNs include ensuring the protection of DTN infrastructure from unauthorized use as well as application protection by providing confidentiality, integrity and authentication services for end-to-end communication. In this paper, we examine the issues in providing application protection in DTNs and look at various possible mechanisms. We then propose an architecture based on Hierarchical Identity Based Encryption (HIBE) that provides end-to-end security services along with the ability to have fine-grained revocation and access control while at the same time ensuring efficient key management and distribution. We believe that a HIBE based mechanism would be much more efficient in dealing with the unique constraints of DTNs compared to standard public key mechanisms (PKI).","PeriodicalId":169031,"journal":{"name":"2008 4th International Conference on Intelligent Computer Communication and Processing","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126653653","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: 27
Real-time Java and multi-core architectures 实时Java和多核架构
2008 4th International Conference on Intelligent Computer Communication and Processing Pub Date : 2008-10-10 DOI: 10.1109/ICCP.2008.4648375
V. Olaru, A. Hangan, Gheorghe Sebestyen-Pal, G. Saplacan
{"title":"Real-time Java and multi-core architectures","authors":"V. Olaru, A. Hangan, Gheorghe Sebestyen-Pal, G. Saplacan","doi":"10.1109/ICCP.2008.4648375","DOIUrl":"https://doi.org/10.1109/ICCP.2008.4648375","url":null,"abstract":"This paper presents some of the issues related to the use of multi-core architectures for real-time systems, in particular for real-time Java. Currently, the Real-Time Specification for Java (RTSJ) does not account for aspects of parallel computing, but the widespread use of multi-core architectures advocates for the need of a change in this regard. Some of these aspects relate closely to architectural features that need to be properly exported to the application level. We discuss the impact of multi-core processors, both symmetric and asymmetric, on process/thread scheduling. We also analyze the changes needed for some of the important features of RTSJ, such as the priority inversion avoidance, in the new context of multi-core processing. Also, locking and fairness issues are discussed with respect to the use of multi-core processors for real-time Java.","PeriodicalId":169031,"journal":{"name":"2008 4th International Conference on Intelligent Computer Communication and Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131157609","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: 5
Statistical methods for automatic segmentation of elastographic images 弹性体图像自动分割的统计方法
2008 4th International Conference on Intelligent Computer Communication and Processing Pub Date : 2008-10-10 DOI: 10.1109/ICCP.2008.4648388
S. Nedevschi, C. Pantilie, T. Mariţa, S. Dudea
{"title":"Statistical methods for automatic segmentation of elastographic images","authors":"S. Nedevschi, C. Pantilie, T. Mariţa, S. Dudea","doi":"10.1109/ICCP.2008.4648388","DOIUrl":"https://doi.org/10.1109/ICCP.2008.4648388","url":null,"abstract":"Elastography is a new ultrasonic method for measuring tissuespsila elasticity. Besides many and widely acknowledged benefits, the method suffers severe limitations due to the high motion sensitivity and inter-operator dependency to the point where it provides only qualitative information, not having, until now, any real quantification means. In this paper we present an automatic segmentation method for elastographic images based on statistical techniques. First a probabilistic model is built for every pixel in the image, derived by processing a video sequence instead of a single image. The built image contains the values with highest probability for each pixel. Next a DAEM (Deterministic Annealing Expectation Maximization) method is used for automatic image segmentation. Finally a numerical quantification of tissue elasticity is provided based on the segmentation.","PeriodicalId":169031,"journal":{"name":"2008 4th International Conference on Intelligent Computer Communication and Processing","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124444410","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: 5
Ontology-based distributed health record management system 基于本体的分布式健康记录管理系统
2008 4th International Conference on Intelligent Computer Communication and Processing Pub Date : 2008-10-10 DOI: 10.1109/ICCP.2008.4648393
C. Cenan, G. Sebestyén, G. Saplacan, D. Radulescu
{"title":"Ontology-based distributed health record management system","authors":"C. Cenan, G. Sebestyén, G. Saplacan, D. Radulescu","doi":"10.1109/ICCP.2008.4648393","DOIUrl":"https://doi.org/10.1109/ICCP.2008.4648393","url":null,"abstract":"The paper presents the architecture of a distributed software system that manages patientspsila health records and assures remote and interactive access to medical services. In order to cover the complex relationships between different medical concepts (symptoms, diseases, treatment, medication, etc.) and also to include ldquointelligencerdquo in the software system an ontology-based approach was adopted. This solution together with the adoption of some widely accepted medical standards (e.g. HL7, LOINC, etc.) assure interoperability and transparent data exchange between various medical applications. The paper presents a distributed healthcare system model in which patients, doctors and software components interact in order to assure better medical services. The key factor in the implementation of this model is the extensive use of the domainpsilas ontology as the bases for database definition and medical data processing. In order to show the usefulness of the proposals as well as their effectiveness in electronic management of patientpsilas health records an experimental implementation of the proposed methodology is in work in the filed of cardio-vascular diseases.","PeriodicalId":169031,"journal":{"name":"2008 4th International Conference on Intelligent Computer Communication and Processing","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128652128","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
Using data aggregation to prolong the lifetime of wide-area wireless sensor networks 利用数据聚合技术延长广域无线传感器网络的生存期
2008 4th International Conference on Intelligent Computer Communication and Processing Pub Date : 2008-10-10 DOI: 10.1109/ICCP.2008.4648379
C. Vașar, O. Proștean, I. Filip, I. Szeidert, A. Robu
{"title":"Using data aggregation to prolong the lifetime of wide-area wireless sensor networks","authors":"C. Vașar, O. Proștean, I. Filip, I. Szeidert, A. Robu","doi":"10.1109/ICCP.2008.4648379","DOIUrl":"https://doi.org/10.1109/ICCP.2008.4648379","url":null,"abstract":"The present paper presents a solution for prolonging the battery life for motes within a wide-area wireless sensor network (WSN). In this particulars networks, the distances between motes and base stations are over the motepsilas communication range, and motes located between sinks and base station are commonly used both as regular motes and repeaters. This diminishes their energetic autonomy and increases lifecycle maintenance costs. The power constraint has a great impact on the functioning of wireless sensor networks; the battery life makes the data communication very high-priced and restricts the amount of transferred data. A study case is performed considering a wide-area WSN functioning in different modes, with no data aggregation and then using in-network data aggregation.","PeriodicalId":169031,"journal":{"name":"2008 4th International Conference on Intelligent Computer Communication and Processing","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127078200","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
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