Im trying out the new and exciting features of chrome canary 19.
I can basically grab the video from the web-cam and set it to a source element for a video tag.
Wow, the question is almost two years old and still relevant. Currently the two options you have is either feeding the camera stream to a canvas in order to regularly send screenshots to your sever (easy but very slow), or using WEBRTC to stream the data. Unfortunately, support for WEBRTC on the server side is still not very good as there are not too many webrtc libraries for common programming languages.