Motion tab (devices)
The following devices have a Motion tab:
- Cameras
On the Motion tab, you can enable and configure motion detection for the selected camera.
Tasks on the Motion tab
|
Name |
Description |
|---|---|
| Motion detection | |
| Hardware acceleration |
Select Automatic to enable hardware acceleration or select Off to disable the setting. For more information, see Enable or disable hardware acceleration. |
| Privacy masks |
If you have defined areas with permanent privacy masks, you can select the Privacy masks check box to display the privacy masks on the Motion tab. You define areas with privacy masks on the Privacy masking tab (devices). There is no motion detection within areas covered by permanent privacy masks. |
| Manual sensitivity |
Determine how much each pixel in the image must change before it is regarded as motion: |
| Threshold |
Determine how many pixels in the image must change before it is regarded as motion: |
| Keyframes only (MPEG-4/H.264/H.265) |
Select this check box to do motion detection on keyframes only instead of on the entire video stream. Only applies to MPEG-4/H.264/H.265. Motion detection on keyframes reduces the amount of processing power used to carry out the analysis. |
| Process image every (msec) |
Select an image processing interval in this list to determine how often the system performs the motion detection analysis. For example, every 1000 milliseconds are once every second. Default value is every 500 milliseconds. The interval is applied if the actual frame rate is higher than the interval you set here. |
| Detection resolution |
Select a detection resolution in this list to optimize motion detection performance. Only the selected percentage of the image is analyzed, for example 25%. By analyzing 25%, only every fourth pixel in the image is analyzed instead of all pixels. Using optimized detection reduces the amount of processing power used to carry out the analysis, but also means a less accurate motion detection. |
| Generate motion data for smart search |
With this check box enabled, the system generates motion data for the images used for motion detection. For example, if you select motion detection on keyframes only, the motion data is also produced for keyframes only. The extra motion data enables the client user, via the smart search function, to quickly search for relevant recordings based on motion in the selected area of the image. The system does not generate motion data within areas covered by permanent privacy masks, but only for areas with liftable privacy masks (see Motion detection (explained)). Motion detection threshold and exclude regions do not influence the generated motion data.
|
| Use exclude regions |
Exclude motion detection from specific areas of a camera view: |