Navigation by walking around: using the Pressure Mat to move in virtual worlds

Area of Science:

• Human-Computer Interaction
• Virtual Reality Systems
• Biomedical Engineering

Background:

• Traditional virtual reality (VR) locomotion methods often lack natural movement immersion.
• There is a need for intuitive input devices that replicate real-world actions like walking and crawling within virtual environments (VEs).

Purpose of the Study:

• To introduce and describe the Pressure Mat, a new VR locomotion input device.
• To evaluate the Pressure Mat's capability for enabling naturalistic navigation in virtual environments.
• To explore potential applications of the Pressure Mat in medical diagnosis and rehabilitation.

Main Methods:

• The Pressure Mat utilizes an array of pressure-sensitive resistors under a flexible mat.
• A personal computer (PC) processes data using a real-time pattern recognition algorithm.
• The algorithm interprets user movements (standing, walking, crawling) based on pressure data.

Main Results:

• The Pressure Mat successfully translated real-world locomotion motions into virtual environment navigation.
• The device accurately distinguished between standing still and various walking directions (forward, backward, left, right).

Conclusions:

• The Pressure Mat offers an intuitive and natural method for VR locomotion.
• This device holds promise for enhancing VR experiences and has potential applications in healthcare settings for diagnosis and therapy.