I hope this the right place for this question, not sure. I have a Asus Xtion Pro live camera, so an IR structured light sensor, on a shop window. When the shop window glass mirrors (there is more light inside than outside the shop), I see this mirrored image also in the depth map. It's clearly an artifact, but how is it possible?
Ignore the holes in the depthmap (black areas) for the moment, it's the not the focus of this question, but look at the red circle, this is a table, that is located inside the store (as you can see in the rgb frame), it should not be present in the depthmap. As far as I know a structured light sensor project a light pattern on the scene and through a camera read how the pattern is deformed on the different surfaces (near, far) to calculate the depth (distance of every point in the detphmap). Of course the table doesn't exist in the scene, so should not exist in the depthmap too! Any idea?