Thinking about using vision technology for small scale aquaculture stock management. Sorting the fishes by weight while eliminating the scale. Probably a conventional camera might suffice with a little bit of ML training. Length does not correlate well with weight in the fish species we are using, but a 2D picture of the fish body might do it. A 3D picture with the new kinect will do the job for sure.

Classic Kinect sensors are used extensively for gesture detection in the niche world of digital interactive exhibitions. You see them a lot in things like science museums or popup events or digital art gallery kinda places.

This exhibit had at least a dozen Kinect cameras: https://nysci.org/home/exhibits/connected-worlds/

Motion capture for animation comes to mind. Another is to project peoples' motion into VR space.

I've been wanting to build gesture based control of my smarthome for a while.