The science behind PureView oversampling
This morning I was surprised by a fascinating post over at AllAboutSymbian about an International Image Sensor Workshop (IISW) by the International Image Sensor Society in Utah in June 2013. This society is is a Californian non-profit, public-benefit corporation (formerly ImageSensors, Inc.).
During this workshop, Juha Alakarhu, Head of Imaging technologies at Nokia/Microsoft Mobiles did a presentation about the science behind PureView. If you know how to understand stuff like this (it's way over my hear), you can grab the complete paper by Nokia's Juha Alakarhu, Samu Koskinen and Eero Tuulos here.
Steve Litchfield has quoted a bit from the paper in his post, and he adds some interesting things, one of which I'd like to quote here: "The Nokia 808 implemented all this algorithmic work in hardware, in a dedicated chip, with shot to shot times of much less than one second, while the later Lumia 1020 does it in software, using the phone's main GPU - and is a lot slower (four seconds) as a result. However, it's hoped that future 41MP PureView devices will be able to use much faster chipsets to bring the shot to shot time down to less than a second again."
On the site of the International Image Sensor Society, you'll find this portrait of all people attending the workshop, as captured by the Nokia 808 PureView in full resolution (click on the shot to get the original but mind you it's 12MB large).
Took me a few seconds to find Juha in this shot, so here's the crop :-)