Let me know is there any depth camera is available in the market which can be connected to raspberry pi? Hope your replies. We are beginners in this topic. So expect some suggestions in this regard.
There is this Argos 3D P100. We successfully integrated it with Raspberry Pi 3. They have all the codes on their support site and they work very well on raspberry Pi. All we did was wrote a simple python script to acquire data and save them on local storage of Pi. What I believe is that as long as data coming out of your sensor is within range of USB 2.0 data transfer rate, it should be good. Also, looking into Microsoft Kinect camera would be a good idea. Hope this helps!