Microsoft is certainly in a long and weary transition state with Windows 10 Mobile, and now one of their chief imaging gurus is going back to Nokia. Juha Alakarhu, who has been featured many times on Windows Central, was responsible for image oversampling, image stabilization techniques on the Lumia 920, iris scanning on the Lumia 950, and was in charge of the proprietary algorithms behind the PureView camera experience on Lumia cameras.