Re: Wow
Fine in good visibility but OCR as a last resort doesn't sound too good.
If visibility is that bad, the driver cannot see and the vehicle will be stationary! :)
But as I noted, it makes sense to use environmental feedback to augment the abstract positional data: anyone who uses a satnav does this all the time: the satnav says turn left after 50 yards, but to you the driver it is obvious the turning in more like 25 yards away - do you turn based on the evidence of your eyes or on the evidence of the satnav?
The only challenge is programming the on-board computer to do what you, the driver does automatically...