[simion314]

The sensors could detect a solid object, the issue seems to be that the sensors will detect many things and the AI or the hardware is incapable to handle the amount of sensors data.

Though the Google car seems to have strong enough hardware to keep track of many vehicles and objects at a big enough distance to not be surprised if something appears or disappears for a frame.

Not sure what people want for a sensor, to detect and label the objects for you? or calculate velocities and predict the future? That seems to be the software developers job but you might need competent people and not throwing big data into a black box and retrain until it mostly works.