Detection of Image Sudden Change |
| Description | Detect the image abnormity and sudden change caused by the abnormity or interference happened to camera in real time, and give the alarm. The detectable abnormity or interference include:Sheltering(shelter the camera lens, and the view field is sheltered over 50%)Camera move or rotation(the rotation angle >25°)Lens Zoom (cause video image blurred)Suddenly brighten or darken(excessive or inadequate exposure) |
| Application Scene | Applied indoor mostly, but the background should be almost static |
| Detection Rate | 90% (False positive rate ≤10%) |
| Minimum Illuminance | Environment: 10 lux |
| Restrictions | Camera's shooting angle and height are unrestricted.Background of the scene should be almost static, and the light can not change fiercely. |
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