Media Server 24.1

# Alert - Path

Generates an alert when an object follows a specified path through the scene. Before using this analysis engine, configure a task such as Object Class Recognition to track objects.

Configuration Parameter | Description
--- | ---
AllowedDeviation | Specifies how far an object can deviate from the path but still cause an alert.
Input | The name of the image track to analyze.
MaximumTime | The maximum amount of time permitted to move along the path from start to finish.
Path | Defines the path through the scene.
Type | The analysis engine to use. Set this parameter to `AlertPath`.

## Output Tracks

Output track | Description
--- | ---
`Data` | Contains one record for each object that moves along the path from start to finish, within the MaximumTime, for each video frame.
`Result` | Contains one record for each object that moves along the path from start to finish, within the MaximumTime. If an object moves along the path several times, Media Server can produce several results with the same ID.
`ResultWithSource` | The same as the `Result` track, but each record also includes the best source frame.
`Start` | The same as the `Data` track, except it contains only the first record of each event.
`End` | The same as the `Data` track, except it contains only the last record of each event.
`Alert` | Contains one record for each object that moves along the path from start to finish, within the MaximumTime. If an object moves along the path several times, Media Server can produce several alerts with the same ID. This track is identical to the `Result` track but is present for consistency with other engines.
`AlertWithSource` | The same as the `Alert` track, but each record also includes the source frame.

To see an example record, use the action GetExampleRecord.

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Version 24.1 | Last updated December 2023

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Product: IDOL Media Server 24.1

Topic Title: Alert - Path