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Advances in Multimedia, 2009. MMEDIA '09. First International Conference on

Date 20-25 July 2009

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Displaying Results 1 - 25 of 46
  • [Front cover]

    Publication Year: 2009, Page(s): C1
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  • [Title page i]

    Publication Year: 2009, Page(s): i
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  • [Title page iii]

    Publication Year: 2009, Page(s): iii
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  • [Copyright notice]

    Publication Year: 2009, Page(s): iv
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  • Table of contents

    Publication Year: 2009, Page(s):v - viii
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  • Preface

    Publication Year: 2009, Page(s):ix - x
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  • Program Committee

    Publication Year: 2009, Page(s):xi - xiv
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  • list-reviewer

    Publication Year: 2009
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  • Audio Compression Using a Munich and Cambridge Morlet Wavelet

    Publication Year: 2009, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (337 KB) | HTML iconHTML

    Most psycho-acoustic models for coding applications use a uniform (equal bandwidth) spectral decomposition as a first step to approximate the frequency selectivity of the human auditory system. However, the equal filter properties of the uniform sub-bands do not match the non uniform characteristics of cochlear filters and reduce the precision of psycho-acoustic modelling. In this paper we present... View full abstract»

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  • An Adaptive Mechanism for Multipath Video Streaming over Video Distribution Network (VDN)

    Publication Year: 2009, Page(s):6 - 11
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (339 KB) | HTML iconHTML

    In the objective of improving the video quality as perceived by end-users, multipath video streaming in Video Distribution Network (VDN) comes as a promising solution. In this paper, we present a new adaptive mechanism to maximize the overall video quality at the client. Overlay path selection is dynamically done based on available bandwidth estimation, while the Quality of Experience (QoE) is sub... View full abstract»

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  • Contextual Metadata in Practice

    Publication Year: 2009, Page(s):12 - 17
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (359 KB) | HTML iconHTML

    This article aims to survey the scene of contextual metadata annotation of digital content. This is performed through a literature review of current research, looking closer at formal context models, contextual metadata gathering and contextual metadata formalisation respectively. The findings of these efforts indicate that the reviewed context models have three elements of context in common. Howe... View full abstract»

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  • Integrating Lecture Recordings with Social Networks

    Publication Year: 2009, Page(s):18 - 22
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1383 KB) | HTML iconHTML

    This paper describes an approach to integrate lecture recordings, based on the virtPresenter framework, within social networks. A lot of social networks have recently begun to provide application programming interfaces (APIs) for external applications, allowing access to userspsila profile information and their friendship relations. The project ldquosocial virtPresenterrdquo combines the resulting... View full abstract»

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  • Video Sequence Deinterlacing Using Intensity Gradient Filter and Median Filter with Texture Detection

    Publication Year: 2009, Page(s):23 - 28
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (888 KB) | HTML iconHTML

    In this paper, we propose a new de-interlacing algorithm for video data using intensity gradient filter and median filter with texture detection in the image block. We first introduce the texture detection. According to texture detection, the current region is determined into smooth region or texture region. In case that the smooth region interpolated by median filter. In addition, in case of the ... View full abstract»

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  • Virtualization as a Strategy for Maintaining Future Access to Multimedia Content

    Publication Year: 2009, Page(s):29 - 32
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB) | HTML iconHTML

    Virtualization and emulation techniques are getting better and better, and it feels thus natural to apply them to address the problem of data preservation for future content access. In this paper, we virtualized a number of existing servers and clients and ran the virtual machines under VMware's hypervisor. Not all of the investigated operating systems could be virtualized successfully, and even w... View full abstract»

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  • Advanced Bilinear Image Interpolation Based on Edge Features

    Publication Year: 2009, Page(s):33 - 36
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (531 KB) | HTML iconHTML

    A variety of image interpolation methods have been used in order to obtain high-resolution (HR) images. In this paper, we propose an advanced bilinear interpolation algorithm which improves edge components. The conventional bilinear image interpolation method has a serious problem such as blurring artifacts. In the experimental results, our proposed algorithm outperforms the bilinear image interpo... View full abstract»

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  • S3: A Spectral and Spatial Sharpness Measure

    Publication Year: 2009, Page(s):37 - 43
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1116 KB) | HTML iconHTML

    This paper presents a block-based algorithm designed to measure the local perceived sharpness in an image. Our method utilizes both spectral and spatial properties of the image: For each block, we measure the slope of the magnitude spectrum and the total spatial variation. These measures are then adjusted to account for visual perception, and then the adjusted measures are combined via a weighted ... View full abstract»

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  • The Visualization and Animation of Algorithmically Generated 3D Models Using Open Source Software

    Publication Year: 2009, Page(s):44 - 49
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1557 KB) | HTML iconHTML

    Investigations into creating 3D models using the open source application Blender and its accompanying scripting language Python are documented. Firstly, the principles of how virtual models are stored are explained leading to their creation using mathematical algorithms. A plane is considered and a method for automated face generation outlined. Iterative midpoint displacement methods are then disc... View full abstract»

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  • Collaborative Multimedia Content Caching Algorithms for Mobile Ad-Hoc Networks

    Publication Year: 2009, Page(s):50 - 57
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB) | HTML iconHTML

    In this paper, we address the problem of collaborative video caching in mobile ad-hoc networks. We consider network portraying static video server with wired interface to gateway node that is equipped with wireless interfaces, other nodes are requiring access to the video streams that is stored at video server. In order to reduce the average access latency as well as enhance the video accessibilit... View full abstract»

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  • A New Adaptive Linear Interpolation Algorithm Using Pattern Weight Based on Inverse Gradient

    Publication Year: 2009, Page(s):58 - 61
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1292 KB) | HTML iconHTML

    Most of conventional interpolation methods do not consider the sufficient pattern of neighbor pixels, which cause quality degradation. Kim et al. proposed new adaptive linear (NAL) algorithm to consider patterns near the interpolated value. However, they have a critical defect which does not reflect whether each neighbor pixels influence the interpolated pixel. To remove this defect, we propose a ... View full abstract»

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  • Requirements for an Adaptive Multimedia Presentation System with Contextual Supplemental Support Media

    Publication Year: 2009, Page(s):62 - 67
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (499 KB) | HTML iconHTML

    Investigations into the requirements for a practical adaptive multimedia presentation system have led the writers to propose the use of a video segmentation process that provides contextual supplementary updates produced by users. Supplements consisting of tailored segments are dynamically inserted into previously stored material in response to questions from users. A proposal for the use of this ... View full abstract»

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  • A Drift-Reduced Hierarchical Wavelet Coding Scheme for Scalable Video Transmissions

    Publication Year: 2009, Page(s):68 - 73
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (186 KB) | HTML iconHTML

    Scalable video coding allows for the capability of (partially) decoding a video bitstream when faced with communication deficiencies such as low bandwidth or loss of data resulting in lower video quality. As the encoding is usually based on perfectly reconstructed frames, such deficiencies result in differently decoded frames at the decoder than the ones used in the encoder and, therefore, leading... View full abstract»

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  • Generation and Maintenance of Semantic Metadata for Personal Multimedia Document Management

    Publication Year: 2009, Page(s):74 - 79
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1421 KB) | HTML iconHTML

    Personal multimedia document management benefits from semantic Web technologies. However, an ontology-based document management system has to meet a number of challenges regarding flexibility, soundness, and controllability of the semantic data model. This paper presents an integrated approach for ontology-based multimedia document management, which covers the process of automated modeling of sema... View full abstract»

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  • Streaming Mobile Multimedia Optimization for Video-Conferencing Scenarios

    Publication Year: 2009, Page(s):80 - 85
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5597 KB) | HTML iconHTML

    Video conferencing in mobile environments involves real time streaming information among mobile nodes connected within a wireless environment. This kind of framework is difficult to deal with, because of its concrete requirements. In this paper, we propose an architecture based on adaptive applications that will change their behavior depending on the network information gathered by the operating s... View full abstract»

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  • Rapidly Building Multimedia Management Interfaces for Ubiquitous Computing Services

    Publication Year: 2009, Page(s):86 - 91
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1026 KB) | HTML iconHTML

    This paper presents a component framework for building and operating multimedia interfaces for context-aware services in smart spaces. By using a compound-document technology, it provides physical entities, places, and services in smart spaces with multimedia components to annotate and control them. It can automatically assemble multimedia components into a multimedia interface for monitoring and ... View full abstract»

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  • Fast Mode Decision Algorithm Using Efficient Block Skip Techniques for H.264 P Slices

    Publication Year: 2009, Page(s):92 - 97
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (391 KB) | HTML iconHTML

    In this paper, we propose a fast algorithm that can reduce the complexity for inter mode decision of the H.264 encoder by minimizing a large number of calculations of inter mode decision process adaptively. The main idea is to use the technique skipping unnecessary macroblock modes. We focus on two block size modes, which is 16times16 and 8times8 block size modes, in proposed algorithm. The percen... View full abstract»

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