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TranScaling: a video coding and multicasting framework for wireless IP multimedia services

Published: 21 July 2001 Publication History

Abstract

The convergence of the Internet with new wireless and mobile networks is creating a whole new level of heterogeneity in multimedia communications. This increased level of heterogeneity emphasizes the need for scalable and adaptive video solutions both for coding and transmission purposes. However, in general, there is an inherent tradeoff between the level of scalability and the quality of scalable video streams. In other words, the higher the bandwidth variation, the lower the overall video quality of the scalable stream that is needed to support the desired bandwidth range. In this paper, we introduce the notion of TranScaling (TS) which is a generalization of (non-scalable) transcoding. With transcaling, a scalable video stream, that covers a given bandwidth range, is mapped into one or more scalable video streams covering different bandwidth ranges. Our proposed TS framework exploits the fact that the level of heterogeneity changes at different points of the video distribution tree over wireless and mobile Internet networks. This provides the opportunity to improve the video quality by performing the appropriate transcaling process. We argue that an Internet/wireless network gateway represents a good candidate for performing transcaling. Moreover, we describe Hierarchical TranScaling (HTS) which provides a "Transcalar" the option of choosing among different levels of transcaling processes with different complexities. We illustrate the benefits of transcaling by considering the recently developed MPEG-4 Fine-Granular-Scalability (FGS) video coding. Simulation results of video transcaling are also presented.

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Cited By

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  • (2010)Support of multiple content variants in the multimedia broadcast/multicast serviceInternational Journal of Communication Systems10.1002/dac.117524:6(691-708)Online publication date: 28-Aug-2010
  • (2004)Transcoding for progressive fine granularity scalable vide coding2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512)10.1109/ISCAS.2004.1328859(III-765-8)Online publication date: 2004
  • (2004)H.264-based stream morphing with scalable motion coding2004 International Conference on Image Processing, 2004. ICIP '04.10.1109/ICIP.2004.1418810(541-544)Online publication date: 2004
  • Show More Cited By

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  1. TranScaling: a video coding and multicasting framework for wireless IP multimedia services

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          cover image ACM Conferences
          WOWMOM '01: Proceedings of the 4th ACM international workshop on Wireless mobile multimedia
          July 2001
          118 pages
          ISBN:1581133847
          DOI:10.1145/605991
          • Program Chairs:
          • Victor Bahl,
          • Adam Wolisz
          Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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          Publication History

          Published: 21 July 2001

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          View all
          • (2010)Support of multiple content variants in the multimedia broadcast/multicast serviceInternational Journal of Communication Systems10.1002/dac.117524:6(691-708)Online publication date: 28-Aug-2010
          • (2004)Transcoding for progressive fine granularity scalable vide coding2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512)10.1109/ISCAS.2004.1328859(III-765-8)Online publication date: 2004
          • (2004)H.264-based stream morphing with scalable motion coding2004 International Conference on Image Processing, 2004. ICIP '04.10.1109/ICIP.2004.1418810(541-544)Online publication date: 2004
          • (2004)An overview of network-aware applications for mobile multimedia delivery37th Annual Hawaii International Conference on System Sciences, 2004. Proceedings of the10.1109/HICSS.2004.1265689(10 pp.)Online publication date: 2004
          • (2003)Streaming VideoWiley Encyclopedia of Telecommunications10.1002/0471219282.eot181Online publication date: 15-Apr-2003

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