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Keypoint Matching Technique and Its Applications

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Introduction<br />

• Shot change detection is an essential step in<br />

video content analysis.<br />

• Types:<br />

– Abrupt transition: hard cuts<br />

– Gradual transition: dissolves, fades <strong>and</strong> wipes<br />

• Finding low-level visual features to compute<br />

frame changes<br />

– Color histograms <strong>and</strong> edges<br />

– Then locate the spots of changes<br />

– Sensitive to object or camera movements

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