How to Use Intelligent Video Analytics (IVA) on Playback

Intelligent video analytics (IVA)
QNAP NVR supports intelligent video analytics to allow the users to search the video files efficiently. The time and effort for video search are largely reduced.

The following features are supported for video analytics:

1. Motion detection: Detects movement of objects in the video.
2. Foreign object: Detects new object in the video.
3. Missing object: Detects missing object in the video.
4. Out of focus: Detects out of focus of the camera in the video.

Camera occlusion: Detects if the IP camera is obstructed.

To use this function, follow the steps below:

1. Go to Playback page of the NVR. Add files to the playlist.
   
   Note: Intelligent video analytics support video search on one channel .
2. On the playback window, click
   
   
   Note:
   1)When you check the option "Pause when found", the data search stops when a video file which matches the search criteria is found.
   2)When you enable "Highlight the detection zone", the moving objects will be highlighted in red brackets; the foreign or missing objects will be highlighted in yellow brackets; out of focus and camera occlusion will be displayed in transparent red.
3. Select the detection mode: motion detection, foreign object, missing object, out of focus, or camera occlusion. You can select multiple options.
   
4. Adjust the sensitivity for object detection.
5. Adjust the time interval for foreign object and missing object. If a foreign object appears or a missing object disappears for a time period longer than the time interval, the system will record an event.
   Note: The interval slide bar appears only when "foreign object" or "missing object" is checked.
6. Define detection zone. Mouse over the edge of the red zone and use the mouse to define the detection zone. Click "Select all" to highlight all the area for detection.
   
7. Define object size for the detection. You can use the mouse the drag the yellow zone to highlight the minimum object size for detection.
   
   Note: After enabling this option, all the objects smaller than the yellow zone will be ignored for detection
8. Click "Search" to start searching the video by IVA. The results and will be shown.
   Note:
   
   
   1)You can double click an entry on the search result dialog to play the video. The player will play the video starting from 15 seconds before the event to 15 seconds after the event.
   2)You can also right click an entry on the search result dialog to export the video and save it on your computer. The exported video starts from 15 seconds before the event to 15 seconds after the event.