Head-coupled perspective in computer games
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This work presents the new method of interaction in computer application, especially ﬁrstand third-person player games. The new control technique called “Head-Aim” is based on Head-Coupled Perspective imagery method and can be used as an independent method of aiming in games as alternative to conventional targeting (with use of popular control devices like computer mouse or gamepad) or combined with them, extending their functionality and interaction realism. Proposed pointing method can also be used in non-game application to allow people control them even if they are unable to use regular control devices. Eﬀectiveness of Head-Aim technique was compared with convetional methods of aiming in specially designed game named “Facepace”. Promising results of these tests are presented. Also a robust, fast and computationally cheap method of head tracking is proposed. Presented algorithm combines background subtrakction and new color-based tracking method enabling tracking user’s head under various lightning conditions. Method allows Head-Coupled Perspective technique to be performed without latencies even with use of a low quality webcam and enables viewing scene in 3D (and use of presented Head Aim method) on every machine, without use of glasses or special devices.
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