Using a Camera Phone as a Mixed-Reality Laser Cannon

This research explores the development of Mobilazer, a location-independent, mixed-reality first-person shooter designed for standard camera-equipped mobile phones. The primary thesis posits that mobile gaming has underperformed due to a reliance on simple, derivative titles and a lack of innovation. By leveraging the ubiquitous camera hardware found in mobile handsets to perform real-time image processing and marker tracking, the authors demonstrate that sophisticated, immersive gaming experiences can be delivered without requiring specialized high-end hardware or location-specific infrastructure.

The game architecture utilizes physical, color-coded tags worn by players, which are detected and analyzed by the mobile phone’s camera. This system enables real-time interaction, including distance measurement, target identification, and simulated combat. The software employs a client-server model, where a central mobile device acts as the game server, coordinating player data and status updates via TCP/IP over GPRS. To ensure competitive balance, the game incorporates dynamic elements such as varying armor levels, weapon upgrades, and power-ups, which reward both new and experienced players.

The study focuses on the technical implementation of these features, including the design of the tags and the mathematical algorithms used for distance calculation and digital zoom. While the research is currently limited to controlled trials conducted at Lancaster University, the findings suggest that utilizing common mobile features for mixed-reality applications offers a viable path for the mobile games industry to reach broader demographics. By moving away from simple casual games toward more complex, interactive environments, developers can better capitalize on the mobility and connectivity inherent in modern mobile devices.