Sudden scene change detection in compressed video using interpolated macroblocks in B-frames |
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Authors: | W A C Fernando |
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Affiliation: | (1) Department of Electronic and Computer Engineering, Brunel University, Kingston Lane, Uxbridge, Middlesex, UB8 3PH, UK |
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Abstract: | This paper addresses an important area in video processing, namely compressed domain processing. For video indexing, video
scene transition detection is an essential step to segment the video. Current techniques for scene change detection tend to
suffer from a major limitation as most of them cannot identify scene transitions in the compressed domain. Since most video
is expected to be stored in the compressed domain, scene transition detection in this domain is highly desirable. In this
paper an algorithm for video scene change detection is proposed to overcome this limitation. In this scheme, properties of
the B-frames are used as it is capable of measuring the correlation between two adjacent reference frames. The results show
that this scheme performs better than schemes based on P-frames. Proposed scheme can be directly applied with compressed data
with minimum decompression and hence it is computationally efficient and makes real time implementations possible. Results
show that video scene transitions can be identified satisfactorily with the proposed scheme. |
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Keywords: | Video indexing Video segmentations MPEG Video retrieval |
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