| Accelerating near-duplicate video matching by combining visual similarity and alignment distortion |
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International Multimedia Conference
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Proceeding of the 16th ACM international conference on Multimedia
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Vancouver, British Columbia, Canada
SESSION: Applications track short papers session 1
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Pages 861-864
Year of Publication: 2008
ISBN:978-1-60558-303-7
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Authors
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Hung-Khoon Tan
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City University of Hong Kong, Kowloon, Hong Kong
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Xiao Wu
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City University of Hong Kong, Kowloon, Hong Kong
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Chong-Wah Ngo
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City University of Hong Kong, Kowloon, Hong Kong
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Wan-Lei Zhao
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City University of Hong Kong, Kowloon, Hong Kong
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Downloads (6 Weeks): 14, Downloads (12 Months): 121, Citation Count: 0
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ABSTRACT
In this paper, we investigate a novel approach to accelerate the matching of two video clips by exploiting the temporal coherence property inherent in the keyframe sequence of a video. Motivated by the fact that keyframe correspondences between near-duplicate videos typically follow certain spatial arrangements, such property could be employed to guide the alignment of two keyframe sequences. We set the alignment problem as an integer quadratic programming problem, where the cost function takes into account both the visual similarity of the corresponding keyframes as well as the alignment distortion among the set of correspondences. The set of keyframe-pairs found by our algorithm provides our proposal on the list of candidate keyframe-pairs for near-duplicate detection using local interest points. This eliminates the need for exhaustive keyframe-pair comparisons, which significantly accelerates the matching speed. Experiments on a dataset of 12,790 web videos demonstrate that the proposed method maintains a similar near-duplicate video retrieval performance as the hierarchical method proposed in [12] but with a significantly reduced number of keyframe-pair comparisons.
REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.
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A. Hampapur and R. Bolle. Comparison of sequence matching techniques for video copy detection. In Conf. on Storage and Retrieval for Media Databases, 2002.
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[doi> 10.1145/1180639.1180826]
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W.-L. Zhao, C.-W. Ngo, H.-K. Tan, and X. Wu. Near-duplicate keyframe identification with interest point matching and pattern learning. In IEEE Trans. on Multimedia, volume 9, Aug 2007.
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