The VE250 is a good choice for indoor or outdoor motion tracking applications. With the VE250 no Perspective information is required. It is considered a plug and play video engine. It will work at virtually any camera angle. The VE250 also works better in busier environments since it has better object segmentation capabilities as compared with the VE130. However, the VE250 does not have any object classification capability, and will use more CPU.
Typical deployments include commercial buildings, where objects are to be detected, military basis, where objects entering an alarm zone or crossing a pre-defined line are to be detected, regardless of class of object (people or vehicles). The VE250 is essentially a big improvement over the motion detection technology previously on the market (which would generate numerous false alarms caused by lighting changes or environment changes). The VE250 can be used in moderately busy, indoor or outdoor environments, at virtually any camera angle. For best performance, the camera must be mounted far enough away from the objects that 8 frames will contain the moving object as it passes by the camera.
Task 1: Configure VE250
To configure the VE250:
1. In Symphony Client, from the Server menu, select Configuration. The Configuration dialog box opens. This allows you to configure devices for the currently selected server.
2. In the left pane, click Devices. The Devices dialog box opens.
3. Click the camera you want to configure for use with video analytics and click Edit.
4. Click the Analytics Engines tab and select VE250. By default VE250 is selected. If the check box for VE250 is not selected, you must clear other check boxes (algorithms) that conflict with VE250.
5. Click the Analytics Configuration tab.
6. From the Analytics Engines drop-down list, select Intel_VE250.
7. The Analysis FPS box configures how many frames will be analyzed by the system. Typically the default value should not be altered. However, there may be cases where the analysis frame rate can be reduced to conserve CPU. Doing this may negatively alter the algorithms performance. Like the Analysis Resolution, the Analysis FPS can be set differently than the record FPS.
8. Adjust the Analysis Resolution as required.
• Setting the Analysis Resolution the same as the Capture Resolution ensures that objects will be detected as far away as possible. However, in order to conserve CPU resources it is possible to downsample the video sent for analysis. Downsampling will reduce CPU requirements but may also reduce the detection range of the video analytic.
9. Modify the motion mask by adjusting the yellow mask as required (see how to configure analytics for more help). Select the Erase radio to erase the yellow mask, and select Draw to draw the mask. The Size slider adjusts the pen thickness.
10. Click Apply to save settings.
Task 2: Create a Rule using VE250
To configure a Rule using the VE250:
1. You must configure the VE250 before creating a Rule that uses the VE250.
2. From the Server menu, select Configuration and then Rules
3. Click New. The Rule Wizard opens. Read the overview and click Next.
4. Select the check box next to the camera name. If it is a PTZ camera, select the camera tour position check box.
5. From the Select video engine for those running on camera drop-down list, select VE250.
6. Click Next to continue in the Rule Wizard.