Documentation for Axxon Next 4.6.0. Documentation for other versions of Axxon Next is available too.

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The camera tampering detection analyzes the video image to determine the nature of its change.

Name of detection tool analysis

Analysis result

Compression artifacts analysis

The detection triggers when compression artifacts appear on the image

Quality degradation analysis

The detection triggers when the video image received from a video camera loses quality.

For example, the detection tool may trigger upon excessive light, loss of focus, lens blocking, or sudden drop in scene illumination.

Image noise analysis

The detection triggers when video noise appears on the image

For example, the detection tool may trigger upon low bit rate or ripples in the image (snow)

Scene change analysis

The detection triggers when the background of the video image changes, indicating a change in the position of the video camera in space

Blurred image analysis

The detection triggers when the blurred contours appear on the image.

For example, the detection tool may trigger when the image is blurry due to a dirty lens.

Attention!

Starting with DetectorPack 3.7.0, the compression artifacts detection, quality degradation, image noise detection, scene change, and blurred image detection are marked as obsolete. If they were in the configuration, then after you update to DetectorPack 3.7.0 and later, they will remain in the configuration, but once you delete them it will not be possible to re-create them.

Starting with DetectorPack 3.7.0, a camera tampering detection is added, which now performs all the functions of legacy detection tools.