Select video objects, track them, apply effects and save the edited video.
Sensarea is an innovative video editing software. With existing editing software, you can apply effects to the whole frame or to a geometric shape. With Sensarea, you can select any objects of interest. Semi-automatic tools are provided to track them. Then, apply each of them a special effect (blur a face, change the color of the background, hide an unsightly wire). At last, save your video as an AVI file or export the object masks to SWF or XML files.
Great software to actively render individual moving objects in a video, not even paid software can do what these guys have achieved.
Cons
Big (screen size) and large (time-wise) videos sometimes may crash when exporting all renderings to a video file.
Of course the software was just released an is in experimental phase, but I hope they can solve the small bugs soon
Summary
4.5 Stars because it is truly innovative, and half star off for the details that still need to be polished