Media Server 12.13

# WorldDimensions

A list of dimensions that describe the actual size of a vehicle model or vehicle type.

The value of this parameter must be the name of a vehicle model or type, followed by a colon, followed by the height, length, and width of the vehicle (in that order, separated by spaces). You can use any units, but you do not specify the units and you must use the same units for all perspective features.

TIP: You can add this information to your training database and set WorldDimensionsMetadata instead.

Media Server can use this information to reduce the number of false positives by checking that a recognized vehicle is the correct size. Media Server takes into account the position of the vehicle in the scene and its distance from the camera.

You can model vehicles as cuboids, by setting a positive value for all three dimensions. If you set one or two of the dimensions to zero, the vehicle is modeled as a rectangle or line. If you do not list dimensions for a vehicle model, or set all dimensions to zero, the vehicle model is not used for estimating perspective and vehicles of that model are not filtered by MaxPerspectiveError.

For more information about using perspective in media analysis, refer to the Media Server Administration Guide.

Type: | List of strings
Default: |
Required: | No
Configuration Section: | TaskName
Example: | The following example specifies some vehicle dimensions in meters. The dimensions for the vehicle type "car" are used when the vehicle is recognized as a car but the model cannot be identified:
    WorldDimensions0=car: 1.55 4.5 1.8
    WorldDimensions1=mustang: 1.38 4.78 1.92
    WorldDimensions2=focus: 1.5 4.4 1.8
See Also: | FieldOfView MaxPerspectiveError WorldDimensionsMetadata

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Version 12.13 | Last updated October 2022

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Product: IDOL Media Server 12.13

Topic Title: WorldDimensions