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Advances in Mobile Multimedia最新文献

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Improvement of QoS in IMS network using network coding 利用网络编码改进IMS网络的QoS
Advances in Mobile Multimedia Pub Date : 2013-12-02 DOI: 10.1145/2536853.2536918
H. Allouch, M. Belkasmi
{"title":"Improvement of QoS in IMS network using network coding","authors":"H. Allouch, M. Belkasmi","doi":"10.1145/2536853.2536918","DOIUrl":"https://doi.org/10.1145/2536853.2536918","url":null,"abstract":"Network coding provides a powerful and effective mechanism, instead of sending packets directly on the channel, the end node is allowed to combine and encode one or more packages before sending them. This process improves the speed of the performance, the rate of the transmission. In this paper, we present a survey of variants of network coding; we present the advantage of network coding in network convergence to IP Multimedia Subsystem (IMS), the classification of network codes, with their advantage. We show by analyzing the strategy of Network Coding, and the performance of the implementation of network coding in terms of messaging and media streaming in the generation IP Multimedia Subsystem network (IMS). We conclude that network coding can improve throughput, minimize transmission delay and minimize energy consumption in the networks of future generations IMS. Following the Network Coding can offer exciting possibilities for efficient transmission and helps raise the growing challenges of different types of applications on the Internet and media convergence based on IP IMS network.","PeriodicalId":135195,"journal":{"name":"Advances in Mobile Multimedia","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120984103","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
Theatre Engine: Integrating mobile devices with live theater 戏剧引擎:将移动设备与现场戏剧相结合
Advances in Mobile Multimedia Pub Date : 2013-12-02 DOI: 10.1145/2536853.2536867
C. Owen, Alison Dobbins, Lisa Rebenitsch
{"title":"Theatre Engine: Integrating mobile devices with live theater","authors":"C. Owen, Alison Dobbins, Lisa Rebenitsch","doi":"10.1145/2536853.2536867","DOIUrl":"https://doi.org/10.1145/2536853.2536867","url":null,"abstract":"Theatre Engine is a three-phase project exploring the integration of mobile devices such as smart phones and tablet computers as user interaction mechanisms for live theatrical performances. This paper describes the technical details for the first performance in the series: Transitions, including system design, user interface details, and lessons learned. The user activities are described in the context of manipulations and the effects of those manipulations. The concept of blurring the distinction between real and virtual is explored. The prototype integrates Android-based mobile devices, servers, projection screens, and modern theatrical lighting with live musicians and dancers, allowing the audience to become a part of the presentation.","PeriodicalId":135195,"journal":{"name":"Advances in Mobile Multimedia","volume":"174 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124509184","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: 9
Designing Seamless Mobile Augmented Reality Location Based Game Interfaces 设计无缝移动增强现实基于位置的游戏界面
Advances in Mobile Multimedia Pub Date : 2013-12-02 DOI: 10.1145/2536853.2536914
M. Lochrie, Klen Copic Pucihar, A. Gradinar, P. Coulton
{"title":"Designing Seamless Mobile Augmented Reality Location Based Game Interfaces","authors":"M. Lochrie, Klen Copic Pucihar, A. Gradinar, P. Coulton","doi":"10.1145/2536853.2536914","DOIUrl":"https://doi.org/10.1145/2536853.2536914","url":null,"abstract":"The majority of mobile devices nowadays harness location and orientation-sensing capabilities, permitting for sensor based Mixed Reality (MR) gaming experiences such as Augmented Reality (AR) games. Nonetheless, only few entertainment implementations of sensor based AR systems emerged, predominantly due to low precision of sensory information causing crude and jerky augmentation, significantly impacting meaningful augmentation that inevitably affects gameplay experience. In this paper, we present a novel pervasive mobile AR Location Based Game (LBG) named Time-wARpXplorer (TARX) where a seamless design approach is used in order to address the quality of augmentation. TARX comprises of a mobile client and an online authoring tool, created to encourage visitors and locals to explore the city of Lancaster by travelling back in time and space to discover their immediate and distant surroundings. Within the game, time travel is linked to present day through the implementation of Foursquare's checkin platform to further raise awareness of historic sites. This paper focuses on the design considerations implemented through an iterative design process and prototyping of the mobile client, of which a novel interface emerged.","PeriodicalId":135195,"journal":{"name":"Advances in Mobile Multimedia","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116421908","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
Mobile Mobility: The Road User Information Systems of the Future 移动出行:未来的道路用户信息系统
Advances in Mobile Multimedia Pub Date : 2013-12-02 DOI: 10.1145/2536853.2536857
Stefan Schulte
{"title":"Mobile Mobility: The Road User Information Systems of the Future","authors":"Stefan Schulte","doi":"10.1145/2536853.2536857","DOIUrl":"https://doi.org/10.1145/2536853.2536857","url":null,"abstract":"Within the last years, the availability of mobile Internet connections has been increased significantly. Nevertheless, the impact of this ubiquitous Web access has not arrived at road user information systems with a few exceptions for navigation systems or traffic monitoring. Even those services that are available today are very limited, as they mainly use GPS or TMC information combined with Web-based maps. Making full use of the Internet availability can enable a whole range of new services and apps for road users, helping them to make their journey safer, more comfortable, and more environmental friendly.\u0000 In this talk, we will identify current research gaps in road user information systems, namely the need to overcome heterogeneous and missing interoperability of relevant data sources, a missing end-to-end integration of data and functionality, and the demand for a homogeneous, unified user interface to road user information systems. Eventually, we will present some results from the ongoing EU FP7 project SIMPLICITY - The Road User Information System of the Future, which contributes to solve these issues.","PeriodicalId":135195,"journal":{"name":"Advances in Mobile Multimedia","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131718056","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
Dynamic Database Creation for Speaker Recognition System 说话人识别系统动态数据库的创建
Advances in Mobile Multimedia Pub Date : 2013-12-02 DOI: 10.1145/2536853.2536923
Bhushan D. Patil, Yogesh Manav, Pavan Sudheendra
{"title":"Dynamic Database Creation for Speaker Recognition System","authors":"Bhushan D. Patil, Yogesh Manav, Pavan Sudheendra","doi":"10.1145/2536853.2536923","DOIUrl":"https://doi.org/10.1145/2536853.2536923","url":null,"abstract":"The classical speaker identification algorithm gives acceptable results if the training is done offline using good quality database [5]. Though there has been a substantial amount of research in speaker recognition area, the majority of work has been focused on the offline training scenario. However in some scenarios where real time speaker recognition is required like in the case of Viewer preference based presentation/playback of media content, offline training is not possible as there is no prior information on the subjects/speakers present in the content. A run time training approach is required to generate a dynamic features database, which can be used to provide features like Viewer preference based seek or Zoom to specific subject/speaker during Media Playback. In this paper we propose a speaker recognition system using a dynamically created database. In this paper we consider Speaker recognition as a classification problem wherein speakers are classified based on speech features. The proposed speaker recognition system uses MFCC (Mel Frequency Cepstral Coefficients) as features and Polynomial/GMM (Gaussian Mixture Model) as classifiers. In our analysis, we demonstrate the pros and cons of the algorithms employing dynamic database creation. The test results show that ~96% accuracy for a content having 5 speakers can be achieved using the proposed system.","PeriodicalId":135195,"journal":{"name":"Advances in Mobile Multimedia","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129114529","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
Cooperative Enhancement of Position Accuracy of Unmanned Aerial Vehicles 无人机定位精度的协同提高
Advances in Mobile Multimedia Pub Date : 2013-12-02 DOI: 10.1145/2536853.2536886
H. Hlavacs
{"title":"Cooperative Enhancement of Position Accuracy of Unmanned Aerial Vehicles","authors":"H. Hlavacs","doi":"10.1145/2536853.2536886","DOIUrl":"https://doi.org/10.1145/2536853.2536886","url":null,"abstract":"Nowadays, unmanned aerial vehicles (UAVs) have become very popular for civil as well as military purposes, ranging from small quadcopters up to plane sized drones. UAVs are usually controlled manually or autonomously, both ways often heavily relying on the use of a global positioning system such as GPS. However, especially the wide spread GPS suffers form large positioning errors of 10-30 m on average. In this paper it is shown how UAVs can improve the accuracy of their position estimates by cooperating with each other. By using ranging hardware, UAVs can create a local positioning frame of reference, and use this to reduce the average positioning error of the global positions. This is done by finding an optimal 3D-rotation between the local and global coordinates. By using simulation, we demonstrate the feasibility of our approach, as well as the influence of parameters like vehicle speed and area size on the average positioning error.","PeriodicalId":135195,"journal":{"name":"Advances in Mobile Multimedia","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128623964","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
Dynamic Subcarrier-based Resource Allocation Algorithm in Wireless Networks 无线网络中基于子载波的动态资源分配算法
Advances in Mobile Multimedia Pub Date : 2013-12-02 DOI: 10.1145/2536853.2536935
V. Seba, B. Modlic, G. Šišul
{"title":"Dynamic Subcarrier-based Resource Allocation Algorithm in Wireless Networks","authors":"V. Seba, B. Modlic, G. Šišul","doi":"10.1145/2536853.2536935","DOIUrl":"https://doi.org/10.1145/2536853.2536935","url":null,"abstract":"This paper proposes a resource allocation algorithm for wireless systems. The algorithm is developed for orthogonal frequency division multiple access (OFDMA) system with frequency hopping and adaptive subcarrier-based assignment. The best subcarriers are assigned to each user by applying multiuser diversity. The proposed two-phase algorithm trades off between system throughput and fairness among users. Data transfer for three users has been simulated in the model. The proposed method shows significant improvement over water filling (WF) and proportional fairness (PF) methods.","PeriodicalId":135195,"journal":{"name":"Advances in Mobile Multimedia","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123420096","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
Image Recognition and Augmented Reality in Cultural Heritage Using OpenCV 基于OpenCV的文物图像识别与增强现实
Advances in Mobile Multimedia Pub Date : 2013-12-02 DOI: 10.1145/2536853.2536878
Alba Amato, S. Venticinque, B. D. Martino
{"title":"Image Recognition and Augmented Reality in Cultural Heritage Using OpenCV","authors":"Alba Amato, S. Venticinque, B. D. Martino","doi":"10.1145/2536853.2536878","DOIUrl":"https://doi.org/10.1145/2536853.2536878","url":null,"abstract":"Cultural heritage often fails to represent a successful attraction because it is not able to capture the interest of tourists. Sometimes the presentation of an archaeological site cannot be improved because of legal or environmental constraints. Sometimes it is really difficult to recognize the relevant details or to understand its significance. A new way of exploiting archaeological sites in a more informative and intuitive way is needed. It is necessary to provide people with information and contents, for understanding the world around them, and with the possibility to interact with those places or objects in real time. Image recognition and analysis is a promising technology that can be applied in this field. In this paper we use in indoor, but also in outdoor scenarios, image recognition for the content discovery service. In particular search by sample facilities are speed-up and improved using a position based filtering. Moreover it is used to extract semantic from subjects in order to personalize the discovery and recommendation according to the user's profile.","PeriodicalId":135195,"journal":{"name":"Advances in Mobile Multimedia","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123735226","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
A Generic Context-Based Architecture for Energy-Efficient Localization on Mobile Devices 一种基于上下文的移动设备节能定位通用架构
Advances in Mobile Multimedia Pub Date : 2013-12-02 DOI: 10.1145/2536853.2536872
W. Narzt
{"title":"A Generic Context-Based Architecture for Energy-Efficient Localization on Mobile Devices","authors":"W. Narzt","doi":"10.1145/2536853.2536872","DOIUrl":"https://doi.org/10.1145/2536853.2536872","url":null,"abstract":"Applying localization techniques on modern smartphones substantially decreases operating times of batteries. In particular, continuous utilization of GPS is mainly in charge for draining. The excessive exploitation of battery power for determining the current location is avoidable, though, if we consider contextual frame conditions, e.g., when the user carrying the device is not moving. Based on this thought principle, the interplay of various contextual parameters affecting localization, enables the construction of an architecture reducing energy consumption for location determination on mobile devices. This paper explains the paradigm and draws the architecture for a generic context-based energy saving strategy for mobile location-based services. Embedded in a social-web application named Spotnick, the strategy has been implemented for both Android and iOS platforms in order to confirm its generic title. Several conducted tests prove its positive impact in terms of energy consumption and reflect on accuracy issues and limitations.","PeriodicalId":135195,"journal":{"name":"Advances in Mobile Multimedia","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116970380","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
Requirements for an Open Ecosystem for Embedded Tamper Resistant Hardware on Mobile Devices 移动设备上嵌入式防篡改硬件的开放生态系统需求
Advances in Mobile Multimedia Pub Date : 2013-12-02 DOI: 10.1145/2536853.2536947
M. Hölzl, R. Mayrhofer, Michael Roland
{"title":"Requirements for an Open Ecosystem for Embedded Tamper Resistant Hardware on Mobile Devices","authors":"M. Hölzl, R. Mayrhofer, Michael Roland","doi":"10.1145/2536853.2536947","DOIUrl":"https://doi.org/10.1145/2536853.2536947","url":null,"abstract":"Insufficient security and privacy on mobile devices have made it difficult to utilize sensitive systems like mobile banking, mobile credit cards, mobile ticketing or mobile passports. Solving these challenges in security and privacy, could result in better mobility and a higher level of confidence for the end-user services in such systems. Our approach for a higher security and privacy level on mobile devices introduces an open ecosystem for tamper resistant hardware. Big advantages of these modules are the protection against unauthorized access and the on-device cryptographic operations they can perform. In this paper, we analyse the requirements and performance restrictions of these hardware modules and present an interface concept for a tight integration of their security features.","PeriodicalId":135195,"journal":{"name":"Advances in Mobile Multimedia","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126482993","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: 14
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