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Detection Ability in Darkness



This is an image taken with a conventional surveillance camera.
In this image, it is completely dark with almost nothing in the surroundings to be seen, but it can be given the feel that a little light for human's eyes and could see own feet very barely.


This image is the same scene to above but taken with highly sensitive camera.
By using a highly sensitive camera, the image could be adjusted like the scene in the evening and used for surveillance.
The detection level is decreased against the daytime scene, but the system can still detect a human being at 100m distance from the camera.
The system does not detect cars passing across the bridge because the bridge located on upper side of the screen is configured to exclude as a non-surveillance area using manual masking.
The camera, Toshiba Teli TC-5000, is used. (Former Toshiba IK-647)