> Theoretically it should be possible to do that using two cameras connected to some kind of image processing unit
That "some kind of image processing unit" in humans has an awful lot of compute power and software.
If you remove $100k of sensors but have to add $200k of compute to run more advanced computer vision software, then it's a bad tradeoff to use only cameras, even if in theory that software is possible.
That "some kind of image processing unit" in humans has an awful lot of compute power and software.
If you remove $100k of sensors but have to add $200k of compute to run more advanced computer vision software, then it's a bad tradeoff to use only cameras, even if in theory that software is possible.