"The human body is a great joystick." -- unknown

Motion capture technology is frequently used by game developers to capture human motion for their characters.

"Full Motion" is where motion capture is used on the PLAYER for the purpose of creating a 3D model that mimics the player's actions in real time.

2009-04-11

Linking Cap


A "Linking Cap" -- as I call it -- is a 3IRLED cap that has one-to-one motion tracking built in.

What a Linking Cap does is link together each device's relative location.

If we had such a cap, we would eliminate the need for a stationary head tracker Wii remote.

A "one armed" or "onemote" Full Motion system is where one hand holds a WiiMot+ (a.k.a. "Wii remote augmented with a Wii MotionPlus") and the other hand holds an ordinary nunchuck accessory.

In a "one armed" Full Motion system, this would mean you only need one Wii remote and one Wii MotionPlus (in addition to the Linking Cap).

Your in-hand WiiMot+ would acquire its relative data as usual and link with the Linking Cap by simply pointing its IR camera at the cap's three IRLEDs. Since the Linking Cap has built-in one-to-one motion tracking, it doesn't need the IR head tracker in order to tell the system its location. The only thing that matters is where the TV and floor are relative to the player. After linking, the system knows the relative locations of "TV to WiiMot+", "Floor to WiiMot+", and "WiiMot+ to Linking Cap". That's all the system needs for a "one armed" Full Motion system.

For a "two armed" or "twomote" Full Motion System, the only difference is two in-hand WiiMot+ have to link to the Linking Cap.

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