With the new D455, I noticed many times that the wrong depth images were generated.
In the below screenshot, you can see the two different depth image took in same place. The upper one is wrong while the lower one is correct. You can see a band in the first image and the lower part is with some shift. The camera is put on table without any touch. It first generated the upper wrong image and then I put my hand into the camera view (just waving my hand), then the camera got the right depth image as shown in the lower screenshot.
This "shifting with band" issue often happens with D455. And I also have one D415 and one D435 camera which seem to have no such issue.
It looks like an software error while calculating the depth from two IR images. And if the issue happens, it can be easily reproduced in the same place, around 1/5 probability.
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