SaccadeNet: Real-Time Saccade Prediction for Virtual Reality Redirected Walking Applications

Electrical & electronic components, Science & engineering

UNMET NEED

Virtual reality (VR) navigation is revolutionizing industries from gaming and entertainment to education, healthcare, and commerce, offering users profound immersive experiences. However, a significant challenge within VR is enabling natural, unrestricted locomotion. To ensure a seamless and comfortable VR journey, it’s crucial to synchronize physical movements with the virtual environment. Current VR setups often confine users to limited “room-scale” spaces (e.g., 4m x 4m), relying on artificial locomotion techniques like flight simulation or teleportation, which can lead to cybersickness and spatial disorientation.

Redirected walking (RDW) stands out as a sophisticated VR locomotion technique that allows users to explore expansive virtual landscapes beyond the confines of their physical surroundings. RDW subtly manipulates the VR scene to guide users’ movements, making them adjust their position and orientation without conscious realization. Traditional methods, however, have their pitfalls. Techniques such as visual warping or the use of flashing dots to trigger ocular saccades can introduce visual artifacts and distortions. These interruptions not only detract from the immersion but can also distract the user, diminishing the overall VR experience.

TECHNOLOGY OVERVIEW

SaccadeNet introduces a transformative solution for virtual reality (VR) navigation, eliminating the need for eye-tracking hardware while enhancing the immersion and accessibility of large-scale virtual environments. This innovative technology leverages the natural phenomenon of saccadic blindness—temporary visual suppression during rapid eye movements—to subtly manipulate the virtual scene in real-time, aligning the user’s physical movements within a constrained space with an infinitely expansive virtual landscape.

SaccadeNet uses a deep learning model to predict when a user is likely to experience saccadic blindness based solely on head movement data. During these moments, the system discreetly adjusts the virtual environment. This method not only circumvents the high costs associated with specialized VR equipment but also drastically reduces the spatial requirements for immersive VR, making expansive virtual experiences accessible in the comfort of one’s living room.

The effectiveness of SaccadeNet has been validated through user studies, demonstrating its capability to allow users to navigate large virtual distances seamlessly without perceiving the redirection manipulations. This ensures a continuous and engaging VR experience that significantly reduces the risk of motion sickness and disorientation, further setting SaccadeNet apart as a leading solution in the field of immersive technologies.

 

COMPETITIVE ADVANTAGES

  • It operates without the need for eye-tracking hardware, making it highly accessible and reducing the cost barrier associated with advanced VR setups.
  • It allows users to navigate extensive virtual distances within physically constrained spaces.
  • Significant reduction of common issues of motion sickness and disorientation. This ensures a more comfortable and prolonged VR experience, enhancing user satisfaction.
  • Easy integration to current VR hardware, opening up possibilities for a wide range of applications, from entertainment to educational and professional training programs.

 

BUSINESS OPPORTUNITY

  • Partnering and licensing for commercial applications
  • Accessing financing for industry-university maturation programs

 

MARKET APPLICATIONS

  • VR headsets hardware
  • Gaming, training, and simulation in VR environments

 

IP PROTECTION

  • USA Patent Application

CONTACTS

Charalambos Poullis

PRINCIPAL SCIENTIST
Computer Science and Software Engineering
Concordia University

Andréa Arias

CONTACT
Director, Business Development
C 1-514-36003079 X 134
andrea.arias@axelys.ca