The real interesting stuff (Score 1)

Anyone read the article? They were using stereo vision to detect obstacles. That is pretty cool. However, I have doubts that they wrote this part themselves because nobody with reasonable mind would use C# for image processing. It is possible a DirectShow filter doing the processing, and the C# code uses managed DS. The biggest problem is they have the obstacle objects listening to an event? Why? What kind of event would they be listening to? Anyone care to guess?