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Analysis of vector space model and spatiotemporal segmentation for video indexing and retrieval

Published: 09 July 2007 Publication History

Abstract

Region-based video indexing systems have opened up new possibilities for the description of visual content. However, these systems are affected by spatial variations on the regions obtained from image segmentation algorithms and by the complexity of region matching techniques. In this paper, we propose to enhance these systems with the use of spatiotemporal regions. The indexing framework studied for that purpose is based on the Vector Space Model (VSM), which enables efficient and compact shot representation with count vectors. We analyse the properties of the VSM and show that shot description can be improved by considering spatio temporal representations. For evaluation, we further compare the performance of the system using the spatiotemporal and the keyframe approach. Experimental results show that the spatiotemporal approach is advantageous in terms of retrieval performance and robustness of the description.

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cover image ACM Conferences
CIVR '07: Proceedings of the 6th ACM international conference on Image and video retrieval
July 2007
655 pages
ISBN:9781595937339
DOI:10.1145/1282280
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: 09 July 2007

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Author Tags

  1. region-based video indexing and retrieval
  2. spatiotemporal segmentation
  3. vector space model
  4. video analysis

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