This is really simple, lets deal in facts:
-The PS3 version uses processing power to track your location, and a significant amount of it as facial recognition is not a lite-weight application. Once the face is recognized the software also needs to convert this into coordinates.
-The Wii version uses no processing power to track your location, the IR camera being used has circuitry integrated that tracks 4 points of IR light and returns their coordinates to the system.
- Both methods require the console to handle the effect on the game.
- The Eye updates its 640x480 image at 60 FPS, however the video displayed shows it running at around 25-30 FPS, this is more obvious when its showing the facial tracking portion. A final product could easily be optimised for full 60FPS imo.
-The Wii method tracks an unspecified resolution always at 30 FPS.
-Based on the tech specs I could find on the Eye it is incapable of accurate depth perception without additional information from the user.
-The Wii method can track accurate depth with the sensor bar but with the IR glasses would also require additional user input.
- The average Wii owner wishing to enable Head Tracking would require a game(software) that recognizes it and IR LED glasses with are about $3-$5.
-The average PS3 owner wishing to enable Head Tracking would require a game(software) that recognizes it and the Eye which is $70 with the game at Target (didn't see it without).
-The PS3 method runs the risk of false positives if others are sitting near/around you and has no clear way to distinguish who it should focus on.
-The Wii method utilizing the IR glasses has no trouble staying focused on the correct target since they must wear the glasses.
Say what you will about them but based on the information freely available on the interwebz those are the weaknesses and strengths I could find. Personally I think the Wii has a slight edge with current tech, but realistically speaking it doesn't matter. There simply will not be very many games with head tracking this generation and IF it becomes a big deal at all it will be next generation and everyone will have the opportunity to implement technology designed for it rather than backporting existing tech to achieve the goal.








