Configuring Quality Threshold Parameters

The Quality Thresholds page in the Web UI contains quality threshold parameters that you must configure prior to system operation. To access this page, click Configuration on the menu bar and click the Quality Thresholds tab.

On a server with newly installed VisionVideo QCS software, no quality thresholds are defined. Click Add to configure quality thresholds.

The list of quality thresholds can be filtered by entering the threshold name (or partial name) in the Filter Quality Thresholds field and clicking Refresh.

Parameter	Description
Name	Name that identifies the quality threshold. This is an unformatted string that is used for convenient reference to thresholds.
Threshold Source	The signal to which the threshold is applied. Valid values: Reference video Target video Fidelity
Threshold Type	Type of threshold. A threshold can be applied to every value of the threshold source, or to the average value. Valid values: Average - Alert is issued when the average value of the source (averaged over a defined window) falls below the threshold. Minimum - Alert is issued whenever the source falls below the threshold.
Threshold Scale	When Threshold Type is set to Average, this field specifies the sliding window over which the values are averaged. Valid values: Frames - If selected, the Threshold Span specifies the number of frames in the sliding window. Seconds - If selected, the Threshold Span specifies the number of seconds in the sliding window. Entire - If selected, the sliding window covers the entire video clip and no Threshold Span needs to be specified.
Threshold Span	The length of the sliding window over which average quality or fidelity values are calculated. The units are specified in Threshold Scale.
Threshold Value	The threshold value. Valid values are 1.0 to 5.0, where 5.0 is the highest quality.

Following is an example of a Quality Thresholds page with various thresholds configured.

Following is an example of an Add Quality Threshold page from the Configuration menu.