A real-time scene change detector for the review of video images
Conference
·
· Nucl. Mater. Manage. Annu. Meet. Proc.; (United States)
OSTI ID:6186476
A small, simple image processing system is presented which enables the detection of scene changes in real-time sequences of video images. Such sequences may be produced by a video camera during on-site surveillance or be played back from a video cassette recorder for reviewing. The system detects scene changes by reading pixel profiles along some user defined polylines and cross-correlating them with the corresponding profiles of a reference image. If the correlation factors of a specified set of profiles drop below their thresholds, an alarm is triggered and the reference image is updated. The cross-correlation technique makes the detector rather insensitive to changes in scene illumination. A prototype system, running on an IBM-PC/AT with plug-in image processing board, has been successfully tested on video images recorded in a plant.
- Research Organization:
- Commission of the European Communities, JRC Ispra (IT)
- OSTI ID:
- 6186476
- Report Number(s):
- CONF-880631-
- Conference Information:
- Journal Name: Nucl. Mater. Manage. Annu. Meet. Proc.; (United States) Journal Volume: 17
- Country of Publication:
- United States
- Language:
- English
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98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
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MAGNETIC STORAGE DEVICES
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PROCESSING
REAL TIME SYSTEMS
SURVEILLANCE
VIDEO TAPES