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2 2013

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Śledzenie głowy użytkownika komputera z użyciem kamery Time of Flight

Bratoszewski P., Czyżewski A.

Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej

2013

Nr 36

35--38

A depth image based real-time head tracking system is described. The proposed system utilizes the Time of Flight camera and digital image processing techniques in order to track user’s head position in the real world coordinates. The detection of head position is based on the shape features of the silhouette. Tracking of head location is enhanced and smoothed by the usage of the Kalman filtering. The developed application runs in real-time and is resistant to different lighting conditions.

Head-coupled perspective in computer games

Szkudlarek M., Pietruszka M.

Journal of Applied Computer Science

2013

Vol. 21, nr 2

165--179

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.