Media Server 25.4
Media Server Help

# MinPerspectiveData

The minimum number of data records that must be generated before attempting to calculate the perspective.

Using a larger value might result in a more accurate projection, but requires Media Server to observe a greater number of vehicles or process more video frames to accumulate the data.

The projection is required for the following features:

- Size filtering. Media Server can eliminate false positive results based on the vehicle size (see MaxPerspectiveError) but this does not start until the projection is ready.
- Real-world coordinates. Media Server cannot output records to the `WorldData`, `WorldResult`, or `WorldSegmentedResult` tracks until the projection has been calculated, so records in these tracks are delayed until the projection is ready.

Unless there is a sufficient amount of consistent data, Media Server might fail to calculate the projection. In this case these features are not available.

This parameter applies only when you configure Media Server to calculate the projection during analysis. If you supply a projection using the Projection parameter, this parameter has no effect.

For more information about using perspective in media analysis, see Use Perspective in Media Analysis.

Type: | Integer
Default: | 500
Required: | No
Configuration Section: | TaskName
Example: | `MinPerspectiveData=1000`
See Also: | FieldOfView WorldDimensions WorldDimensionsMetadata

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Media Server 25.4

Topic Title: MinPerspectiveData