A Robust Camera-Based Interface for Mobile Entertainment.

Area of Science:

• Human-Computer Interaction
• Mobile Computing
• Computer Vision

Background:

• Camera-based interfaces are emerging in mobile apps and games.
• Limited research exists on their usability and user perception in real-world scenarios.
• Previous evaluations often occur in controlled lab settings, limiting generalizability.

Purpose of the Study:

• To develop and evaluate a robust camera-based interface for mobile entertainment.
• To assess the interface's accuracy as a pointing device.
• To investigate user perception and usage in naturalistic mobile contexts.

Main Methods:

• Developed a head-tracking interface using a mobile device's front camera.
• Evaluated pointing accuracy, considering factors like gain, orientation, and target size.
• Conducted an "in the wild" study with a head-motion-controlled game.
• Published the game to gather real-world usage data from a broad user base.

Main Results:

• The camera-based interface demonstrated accuracy as a pointing device.
• The "in the wild" study showed positive user perception and engagement.
• Usage data from the application store confirmed feasibility across diverse users and contexts.

Conclusions:

• A robust camera-based interface is feasible for mobile entertainment.
• Head-motion control offers a viable interaction method for mobile applications.
• Real-world studies and public release are crucial for validating mobile interface technologies.