A Systematic Review of Interaction Techniques for Mobile Virtual Reality

Paper Title

A Systematic Review of Interaction Techniques for Mobile Virtual Reality

Publication Info

• Topic area: Interaction techniques in mobile virtual reality (MVR) for cost-accessible extended reality (XR).
• Keywords: Mobile VR, interaction techniques, 6DOF, low-cost XR, gaze-based pointing, acoustic sensing, DIY prototyping, taxonomy, digital divide, accessibility.

Background and Problem

• Problem / challenge: Mobile VR (MVR) lacks the interaction capabilities of high-end VR systems, particularly 6DOF input, limiting its ability to support immersive and interactive experiences. Prior surveys have not systematically reviewed MVR interaction techniques.
• Significance: MVR offers a low-cost alternative to high-end VR, making immersive experiences accessible to lower socioeconomic groups. Enhancing MVR interaction capabilities can help bridge the digital divide and improve access to XR benefits.
• Motivation and related work: Previous research has focused on high-end VR interaction or specific MVR applications (e.g., education, healthcare). However, there is a gap in understanding fundamental interaction techniques (selection, manipulation, travel, system control) in MVR, particularly cost-accessible solutions.

Solution

• Proposed approach: A systematic review of MVR interaction techniques (2011–2025) using PRISMA 2020 guidelines, focusing on cost-accessible and emerging methods for fundamental VR tasks.
• Novelty:
  1. Comprehensive synthesis of MVR interaction techniques for travel, selection, manipulation, and system control.
  2. Assessment of cost-accessible techniques and identification of design factors influencing their efficacy.
  3. Development of a taxonomy of emerging MVR interaction techniques.
  4. Proposal of a DIY toolkit for designing cost-accessible XR interactions.
• Procedure and key techniques:
  • Literature search across four databases (ACM Digital Library, IEEE Xplore, Springer Nature Link, Elsevier ScienceDirect).
  • Inclusion criteria: peer-reviewed studies (2011–2025) evaluating MVR interaction techniques.
  • Data extraction: interaction tasks, evaluation methods, metrics, hardware, cost, and novelty.
  • Meta-analysis of 64 selected articles, identifying trends, strengths, and gaps in the literature.

Results

• Concrete findings:
  • 87.5% of studies reported broadly applicable results; 64.06% focused on low-cost techniques.
  • Acoustic sensing achieved high precision (0.006–0.7 mm) and low latency for 6DOF tracking but had higher power consumption.
  • Optical tracking faced limitations due to smartphone camera FOV but provided acceptable performance in some cases.
  • Emerging techniques supported 6DOF selection and travel but struggled with 6DOF manipulation.
  • Eye tracking using smartphone cameras achieved accuracy comparable to high-end VR systems.
• Advantage over baselines:
  • Emerging techniques often matched or exceeded the performance of established MVR methods (e.g., gaze-based pointing, HMD buttons).
  • Acoustic and optical tracking solutions provided cost-effective alternatives to high-end VR hardware.
• Experiments / evaluation:
  • Most studies used user studies (68.75%) or pilot experiments (20.31%), with an average of 18 participants.
  • Metrics included both subjective (e.g., user preferences) and objective (e.g., task completion time) measures.
  • Few studies compared MVR techniques directly to high-end VR baselines.
• Limitations and future work:
  • Limited research on low-cost 6DOF manipulation techniques.
  • Underexplored locomotion methods for large virtual environments (e.g., teleportation, redirected walking).
  • High proportion of preliminary evaluations (20%) and extended abstracts (45.31%) with limited statistical rigor.

Summary

This systematic review evaluates interaction techniques for mobile virtual reality (MVR), emphasizing cost-accessible solutions for fundamental tasks (selection, manipulation, travel, system control). The study identifies effective low-cost methods, such as acoustic and optical tracking for 6DOF input, and proposes a taxonomy and DIY toolkit to guide future research. While significant progress has been made in selection and travel techniques, challenges remain in developing low-cost 6DOF manipulation solutions. The findings highlight MVR's potential to address the digital divide and inform future XR research, particularly in creating accessible and immersive experiences for disadvantaged populations.