If you're going to deal with multiple cameras, why wouldn't you at least have a 4x4 array of cameras, with a spacing of at least 10 cm? You could deal with smal

If you're going to deal with multiple cameras, why wouldn't you at least have a 4x4 array of cameras, with a spacing of at least 10 cm? You could deal with small object occlusion, and gain some redundancy.