It's common to shape the sole of performance cycling shoes, but not by way of scanning. I had a pair done a while back which where made by me stepping on a heated rubbery platform that slowly took the shape of my feet. The thing I stood on was then used to vacuum-shape a carbon fibre insole.

It's probably been around for a while, by it was alien technology to me at the time. https://www.youtube.com/watch?v=9vmLO7SQ32o