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multimedia on mobile devices 2011;and multimedia content access: algorithms and systems v

ISBN: (纸本)9780819484185

The proceedings contain 37 papers. The topics discussed include: mobile 3D quality of experience evaluation: a hybrid data collection and analysis approach;overcome the shortcoming in mobile stereoscopy;comparative study of autostereoscopic displays for mobile devices;subjective evaluation of mobile 3D video content: depth range versus compression artifacts;development of 3D mobile receiver for stereoscopic video and data service in T-DMB;a right scaled depth sense formed by using a distorted objective space based on CG stereoscopy;smart travel guide: from internet image database to intelligent system;revised benchmarking of contact-less fingerprint scanners for forensic fingerprint detection: challenges and results for chromatic white light scanners (CWL);and optimizing bandwidth and storage requirements for mobile images using perceptual-based JPEG recompression.

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Forensic investigation of certain types of mobile devices

Forensic investigation of certain types of mobile devices

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Conference on multimedia on mobile devices and multimedia content access - algorithms and systems v

作者： Luttenberger, Silas Creutzburg, Reiner Univ Appl Sci Fach Hsch Brandenburg Dept Informat & Media D-14770 Brandenburg Germany

ISBN: (纸本)9780819484185

The aim of this paper is to show the usefulness of Windows based Open Source Tools and other demo versions of software tools for forensic investigation of modern mobile devices. It is demonstrated how important data stored in the mobile device are investigated. Different scenarios of investigations are presented that are well-suited for a inexpensive forensics lab work in university. In particular the forensic investigation of three different cell phones is described: Motorola v3m, Motorola v3i, and BlackBerry 8700g(10).

关键词： Cell phone forensics forensics for mobile devices cell phone mobile phone forensics

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multimedia Information Retrieval at FX Palo Alto Laboratory

Multimedia Information Retrieval at FX Palo Alto Laboratory

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Conference on multimedia on mobile devices and multimedia content access - algorithms and systems v

作者： Cooper, Matthew Adcock, John Girgensohn, Andreas Pickens, Jeremy Wilcox, Lynn FX Palo Alto Lab Palo Alto CA 94034 USA

ISBN: (纸本)9780819484185

This paper describes research activities at FX Palo Alto Laboratory (FXPAL) in the area of multimedia browsing, search, and retrieval. We first consider interfaces for organization and management of personal photo collections. We then survey our work on interactive video search and retrieval. Throughout we discuss the evolution of both the research challenges in these areas and our proposed solutions.

关键词： video visualization multimedia Human-machine interfaces Interfaces Digital photography Internet Photography Document management mobile devices

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iPhone forensics based on Macintosh open source and freeware tools

iPhone forensics based on Macintosh open source and freeware...

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Conference on multimedia on mobile devices and multimedia content access - algorithms and systems v

作者： Hoene, Thomas Creutzburg, Reiner Univ Appl Sci Fach Hsch Brandenburg Dept Informat & Media D-14770 Brandenburg Germany

ISBN: (纸本)9780819484185

The aim of this article is to show the usefulness of Mac OS X based open source tools for forensic investigation of modern iPhones. It demonstrates how important data stored in the iPhone is investigated. Two different scenarios of investigations are presented that are well-suited for a forensics lab work in university. This work shows how to analyze an Apple iPhone using open source and freeware tools. Important data used in a forensics investigation, which are possibly stored on a mobile device are presented. Also the superstructure and functions of the iPhone are explained.

关键词： Apple iPhone iPhone forensics mobile forensics Mac OS X forensics

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Towards a multimedia remote viewer for mobile thin clients

Towards a multimedia remote viewer for mobile thin clients

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Conference on multimedia on mobile devices and multimedia content access - algorithms and systems v

作者： Joveski, B. Simoens, P. Gardenghi, L. Marshall, J. Mitrea, M. vankeirsbilck, B. Preteux, F. Dhoed, B. TELECOM SudParis Inst TELECOM ARTEMIS Dept Evry France IBBT Ghent Belgium Univ Ghent Ghent Belgium Prologue Software Gennevilliers France MINES ParisTech Paris France

ISBN: (纸本)9780819484185

Be there a traditional mobile user wanting to connect to a remote multimedia server. In order to allow them to enjoy the same user experience remotely (play, interact, edit, store and share capabilities) as in a traditional fixed LAN environment, several dead-locks are to be dealt with: (1) a heavy and heterogeneous content should be sent through a bandwidth constrained network;(2) the displayed content should be of good quality;(3) user interaction should be processed in real-time and (4) the complexity of the practical solution should not exceed the features of the mobile client in terms of CPU, memory and battery. The present paper takes this challenge and presents a fully operational MPEG-4 BiFS solution.

关键词： remote viewer multimedia mobile thin clients BiFS

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Forensics of location data collected by Google Android mobile devices

Forensics of location data collected by Google Android mobil...

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Conference on multimedia on mobile devices and multimedia content access - algorithms and systems vI

作者： Kroeger, Knut Creutzburg, Reiner Brandenburg Univ Appl Sci Dept Informat & Media D-14770 Brandenburg Germany

This paper deals with forensic investigation of stored location data collected by Android mobile devices. The main aspects of the study are the extraction and examination of the location data and the possibilities for... 详细信息

ISBN: (纸本)9780819489517

关键词： Android forensics mobile forensics rooting Android Oxygen Forensic Suite 2011 location data forensics

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Comparative study of autostereoscopic displays for mobile devices

Comparative study of autostereoscopic displays for mobile de...

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Conference on multimedia on mobile devices and multimedia content access - algorithms and systems v

作者： Boev, Atanas Gotchev, Atanas Tampere Univ Technol Dept Signal Proc FI-33101 Tampere Finland

ISBN: (纸本)9780819484185

We perform comparative analysis of the visual quality of multiple 3D displays - seven portable ones, and a large 3D television set. We discuss two groups of parameters that influence the perceived quality of mobile 3D displays. The first group is related with the optical parameters of the displays, such as crosstalk or size of sweet spots. The second group includes content related parameters, such as objective and subjective comfort disparity range, suitable for a given display. We identify eight important parameters to be measured, and for each parameter we present the measurement methodology, and give comparative results for each display. Finally, we discuss the possibility of each display to visualize downscaled stereoscopic HD content with sufficient visual quality.

关键词： portable 3D displays parallax barrier lenticular sheet light guide HDDP crosstalk accommodation-convergence rivalry comfort disparity range subjective quality downscaled stereoscopic content

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Spatially Organized visualization of Image Query Results

Spatially Organized Visualization of Image Query Results

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Conference on multimedia on mobile devices and multimedia content access - algorithms and systems v

作者： Ciocca, Gianluigi Cusano, Claudio Santini, Simone Schettini, Raimondo Univ Milano Bicocca Viale Sarca 336 I-20126 Milan Italy

ISBN: (纸本)9780819484185

In this work we present a system which visualizes the results obtained from image search engines in such a way that users can conveniently browse the retrieved images. The way in which search results are presented allows the user to grasp the composition of the set of images "at a glance". To do so, images are grouped and positioned according to their distribution in a prosemantic feature space which encodes information about their content at an abstraction level that can be placed between visual and semantic information. The compactness of the feature space allows a fast analysis of the image distribution so that all the computation can be performed in real time.

关键词： Image retrieval content-based image analysis image browsing

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Overcome the shortcoming in mobile stereoscopy

Overcome the shortcoming in mobile stereoscopy

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Conference on multimedia on mobile devices and multimedia content access - algorithms and systems v

作者： Lee, Kwang-Hoon Kim, Sung-Kyu Konkuk Univ Dept Adv Technol Fus Seoul South Korea KIST Imaging Media Res Ctr Seoul South Korea

ISBN: (纸本)9780819484185

The mobile device has the lacked space for configuring cameras to make either ortho- or hyperstereoscopic condition with a small size of display. Therefore mobile stereoscopy cannot provide a presence with a good depth sense to an observer. To solve this problem, we focused on the depth sense control method with a switchable stereo camera alignment. In converging type, the fusible stereo area becomes wider compared to a parallel type when the same focal length was used in both types. This matter makes it that the stereo fusible area formed by converging type to be equal to the parallel type with a more shorten focal length. Therefore there is a kind of the zoom-out effect at the reconstructed depth sense. In diverging type, the fusible stereo area becomes narrower than the parallel. As the same way, the diverging type guarantees a similar characteristic of that an increased focal length is considered in parallel type. Therefore there is a zoom-in effect existing. Stereoscopic zoom-in depth effect becomes rapidly changed by the increased angle but zoom-out becomes retarded relatively.

关键词： Stereoscopic cameras Cameras Sensors Stereoscopy Distributed interactive simulations Image processing Imaging systems mobile devices Image sensors multimedia

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User-provided multimedia content distribution architecture in mobile and ubiquitous communication networks

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JOURNAL OF NETWORK AND COMPUTER APPLICATIONS 2011年第1期34卷 121-136页

作者： Hu, Chih-Lin Cho, Chien-An Natl Cent Univ Dept Commun Engn Jung Li City 32001 Taoyuan Taiwan

The network convergence of wired, wireless, and mobile systems creates a ubiquitous network environment where modern networking devices feature multiple networking interfaces and can connect to different networks simultaneously. mobile users in ubiquitous networks expect to access information services anytime, and from anywhere. This paper presents a mobile content sharing scenario in which a networked device can discover neighboring devices and share multimedia content in a convenient, networked manner. This ideal scenario differs from the traditional usage which requires the tedious manual operations of connection setup and file transfer. To achieve this goal, this study proposes a user-provided multimedia content distribution architecture for a mobile and ubiquitous network environment. The proposed architecture integrates several specific mechanisms, including device discovery, asynchronous content delivery, secure access control, and virtual file system. This design addresses several inherent limitations in wireless and mobile networks, and enables mobile users to transfer media content in a secure, mobile, and energy-saving way. The proof-of-concept prototype and performance evaluation in this study confirm that the proposed architecture not only provides better user experience, but also achieves a lightweight design without compromising performance. (C) 2010 Elsevier Ltd. All rights reserved.

关键词： Device discovery mobile content delivery mobile application multimedia distribution Ubiquitous computing

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