Vangos Pterneas is a Windows Phone 7 developer who just released a face recognition system for Microsoft’s latest mobile platform. The software is based on a port that uses Rene Schulte’s open source Facelight libraries. The expert claims that using Facelight was a ball, as the user only needs two XAML image controls placed in the same position.

The upper one (known as ImgResult) contains a red ellipse that specifies the recognized face, while the other one (ImgOverlay) contains the original bitmap source. You can call this a skin recognizer, that’s only able to detect one face per image. Yes, the software is limited at this point, but it brings out the best in Silverlight.

More info on Facelight and the source are available here.