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How to check the restored depth

I use the creation of a mismatch map from two stereoscopic images. Then I use the normal triangulation formula depth = focallength * source / difference to get the depth. How can I verify that the recovered depth is really correct? Are there any tests for this? I assume that there are some customizable parameters, such as multiplying this depth by some factor, etc., But again, this is more trial and error. I am looking for something more specific. How do people in the vision community usually test results?

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I suggest you check the depth measured on your images by measuring it in the real world. If there was a way to check the measurement that you took on the images .. in the images, then you would probably use this method to measure the depth in the first place.

Measure the distance from the camera to any object in the real world and measure the size of the object perpendicular to the axis of one of the cameras. Then also measure the distance and size of the images. You use a measure of size in the real world, combined with the size of the object in pixels in the image, to scale the distance you calculate. The result should match the distance you measured.

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