Efficient Scrambling Of Regions Of Interest In An Image Or Video To Preserve Privacy
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United States of America Patent
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N/A
Issued Date -
May 22, 2008
app pub date -
Dec 22, 2005
filing date -
Dec 27, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A video surveillance system is disclosed which addresses the issue of privacy rights and scrambles regions of interest in a scene in a video scene to protect the privacy of human faces and objects captured by the system. The video surveillance system is configured to identify persons and or objects captured in a region of interest of a video scene by various techniques, such as detecting changes in a scene or by face detection. In accordance with an important aspect of the invention regions of interest are automatically scrambled, for example, by way of a private encryption key, while the balance of the video scene is left in tact and is thus recognizable. Such region of interest scrambling provides distinct advantages over known code block scrambling techniques. The entire video scenes are then compressed, by one or more compression standards, such as JPEG 2000. In accordance with one aspect of the invention, the degree of scrambling can be controlled.
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Family
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Cited Art Landscape
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