minimum depth differentiation
Hi,
I got an intel D455 camera and one thing I am not understanding is that what is the minimum depth difference I can measure with it. basically, I am trying to measure small depth changes that will occur when a fluid is in a circular motion.
Looking for help.
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Hi Saad Azhar The amount of motion in the water will likely be within the capabilities of the camera to register if the water is churning round. Even in 2015 with an original-generation RealSense R200 stereo depth camera (the ancestor of the 400 Series cameras) changes in the depth of moving sand could be registered, as demonstrated in the YouTube video linked to below.
https://www.youtube.com/watch?v=tz0Aa4qjxeQ
In regard to how much change it may take to register on the camera: in the link below, the subject of tracking the motion of an object as small as a bee is discussed. The Chief Technology Officer of the RealSense Group at Intel (agrunnet) recommends that a tracked object is at least 9 pixels in size on the image.
https://github.com/IntelRealSense/librealsense/issues/4175#issuecomment-507448389
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