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Robust GME in encoded MPEG video

Published: 05 December 2011 Publication History

Abstract

In this paper, we propose a novel block-based approach for global motion estimation (GME) and panorama image construction in encoded MPEG-1 video streams. Direct extraction of motion vectors (MV) from MPEG stream greatly improves efficiency of our method against pixel-based methods. However, some MVs in MPEG stream do not indicate real object or camera motion in the scene. Therefore, we introduce a reliability measure to discriminate real MVs from noisy or outlier MVs. In addition, an iterative reweighting process is applied to increase accuracy of GME. Finally, panorama image of several sequences is constructed by using estimated camera motion. Experiments show that the proposed method has high accuracy and can produce high quality panorama images for compressed videos faster than realtime.

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Cited By

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  • (2018)Ego-Motion Classification for Body-Worn VideosImaging, Vision and Learning Based on Optimization and PDEs10.1007/978-3-319-91274-5_10(221-239)Online publication date: 20-Nov-2018
  • (2013)Flexible soccer video summarization in compressed domainICCKE 201310.1109/ICCKE.2013.6682798(213-218)Online publication date: Oct-2013

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cover image ACM Other conferences
MoMM '11: Proceedings of the 9th International Conference on Advances in Mobile Computing and Multimedia
December 2011
318 pages
ISBN:9781450307857
DOI:10.1145/2095697
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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Published: 05 December 2011

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Author Tags

  1. IRLS
  2. MPEG
  3. global motion estimation
  4. motion vector reliability
  5. panorama image construction

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View all
  • (2018)Ego-Motion Classification for Body-Worn VideosImaging, Vision and Learning Based on Optimization and PDEs10.1007/978-3-319-91274-5_10(221-239)Online publication date: 20-Nov-2018
  • (2013)Flexible soccer video summarization in compressed domainICCKE 201310.1109/ICCKE.2013.6682798(213-218)Online publication date: Oct-2013

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