QNAP School > Tutorials > NVR Technical Guide
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.
  5. Camera occlusion: Detects if the IP camera is obstructed.

To use this function, follow the steps below:

For NVR FW v5.x

Note: The intelligent video analytics support video search on one IP camera channel only.

Other options:

  1. Enter the playback page. Select one channel and click .
  2. Select recording type, start time and end time for video search.
  3. Configure the IVA settings for video search.

    Note: The Interval slide bar appears only when ‘Foreign object’ or ‘Missing object’ is selected.

    1. Select the detection mode: Motion detection, Foreign object, Missing object, Out of focus, or Camera occlusion.  Multiple options can be selected.
    2. Adjust the sensitivity for object detection.
    3. Adjust the time interval for detecting the foreign objects and missing objects.  If a foreign object appears or a missing object disappears for a period of time which is longer than the time interval, the NVR will record the event.
    4. Define the detection zone. Mouse over the edge of the red zone and use the mouse to define the detection zone. Click ‘Select all’ to highlight the entire area.
    5. Define the object size for detection.  Use the mouse to drag the yellow zone to define the minimum object size for detection.

      Ignore objects with width or height less than this setting: Enable this option to ignore all the objects smaller than the yellow zone.
    6. Enable/Disable other options for video search.
      • Pause when found: Enable this option and the video search will stop when a video file matching the search criteria is found.
      • Highlight the detection zone: The moving objects detected in the video will be highlighted in red boxes; the foreign or missing objects will be highlighted in yellow boxes; the video which is out of focus or obstructed will be displayed in transparent red.
  4. Click ‘Search’ to start searching the video by IVA. The results will be shown.

    • 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. 
    • Right click an entry on the search result dialog to export the video (AVI format) and save it to the computer.  The exported video starts from 15 seconds before the event to 15 seconds after the event.


For NVR FW v4.x

Note: The intelligent video analytics support video search on one IP camera channel only.

  1. Enter the playback page.  Select one channel and click Search.
  2. Select recording type, start time and end time for video search.
  3. Configure the IVA settings for video search.

    Note: The Interval slide bar appears only when ‘Foreign object’ or ‘Missing object’ is selected.

    1. Select the detection mode: Motion detection, Foreign object, Missing object, Out of focus, or Camera occlusion.  Multiple options can be selected.
    2. Adjust the sensitivity for object detection.
    3. Adjust the time interval for detecting the foreign objects and missing objects.  If a foreign object appears or a missing object disappears for a period of time which is longer than the time interval, the NVR will record the event.
    4. Define the detection zone. Mouse over the edge of the red zone and use the mouse to define the detection zone. Click ‘Select all’ to highlight the entire area.
    5. Define the object size for detection.  Use the mouse to drag the yellow zone to define the minimum object size for detection.

      Ignore objects with width or height less than this setting: Enable this option to ignore all the objects smaller than the yellow zone.
    6. Enable/Disable other options for video search.
      • Pause when found: Enable this option and the video search will stop when a video file matching the search criteria is found.
      • Highlight the detection zone: The moving objects detected in the video will be highlighted in red boxes; the foreign or missing objects will be highlighted in yellow boxes; the video which is out of focus or obstructed will be displayed in transparent red.
  4. Click ‘Search’ to start searching the video by IVA.  The results will be shown.

    Other options:

    • 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. 
    • Right click an entry on the search result dialog to export the video (AVI format) and save it to the computer.  The exported video starts from 15 seconds before the event to 15 seconds after the event.


For NVR FW v3.6.1 or 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.
2015/03/06
Back