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Confidence Threshold#

The Confidence Threshold feature allows you to exclude unreliable data from your measurements with a blaze-101 camera.

Using the Feature#

How It Works#

The camera calculates an internal confidence value between 0 and 255 for every pixel. The more light is collected for a pixel, the higher the confidence value. With the ConfidenceThreshold parameter you can specify that only pixels above a certain confidence value are included in the camera output. If the internal confidence value of a pixel doesn't pass the confidence threshold, the corresponding pixel position is represented in the various image components like outlined in the following table:

Image Component Representation of Pixels Below the Confidence Threshold
Range Map Set to the value specified by the Scan3dInvalidDataValue parameter
Confidence Map Set to zero
Point Cloud All 3 coordinates set to the value specified by the Scan3dInvalidDataValue parameter

Setting a Confidence Threshold#

You can specify a confidence threshold value between 0 and 255. As conditions can vary a lot in different applications, there is no general guideline for choosing a value. Try experimenting with this parameter to see which setting delivers the best results, i.e., at which setting undesired parts of the image are removed.