I think that object recognition is hard because humans have much more data than computers. People see with two eyes which can focus on different distances, so our brain has 3D data to learn from. We later learn to recognise the same objects on pictures.
Computers usually start from flat pictures, and that trips the learning process.
Computers usually start from flat pictures, and that trips the learning process.
I have zero data to back it up. Just my hunch :D