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# Train the Scene Analysis Engine

To run scene analysis, you must create a training configuration that describes the events that you want to detect. To create the training configuration, use the Scene Analysis Training Utility.

You can use the Training Utility to:

- Define one or more regions of interest in the scene.
- Mask parts of the scene that you do not want to monitor.
- Define the size, shape, orientation, velocity, and color of the objects that you want to detect, and the permitted variations in all of these properties.
- Define the position of traffic lights in the scene, so that HPE Media Server can read the lights.
- Display the video being analyzed by HPE Media Server so that you can confirm objects are being tracked correctly.
- Set up filters to reduce the number of false alarms. For example, you might want HPE Media Server to generate alarms only for objects that are larger than a particular size.
- Review the alarms that have been generated using your training configuration, and classify those alarms as suspicious (true alarms) or not suspicious (false alarms). The Training Utility can then suggest improvements to the configuration to minimize the number of false alarms and the number of missed alarms.

While you are training HPE Media Server, you can use the Training Utility to start and stop ingestion and analysis (`process` actions). When you start processing through the Training Utility, HPE Media Server makes video frames and alarm data available to the Training Utility. The Training Utility needs this data during the training process.

After you have finished training, send your finished configuration to HPE Media Server. To run Scene Analysis in a production environment, do not start processing through the Training Utility. Instead, create a new configuration containing a scene analysis task, and start the `process` action as described in Start Processing.

For more information about using the Scene Analysis Training Utility, refer to the documentation for the Training Utility.

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