VR-AR Transition via Body Part Proximity Detection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current systems for transitioning between virtual reality (VR), augmented reality (AR), and mixed reality (MR) states lack effective methods for determining when to transition, particularly in detecting user interactions with objects or changes in location, leading to suboptimal user experiences.

Innovation Solution

A user interface device equipped with a body part sensor system that detects the proximity and orientation of a user's body parts, such as hands or feet, to trigger transitions between VR states, using sensors like capacitive, optical, or camera systems, and generates composite images to seamlessly integrate real and virtual environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a HMD covers the user's eyes to provide virtual reality experience, then the virtual reality immersion is improved, but the user's ability to see the actual physical world deteriorates

Engineering Contradiction:
Improvevirtual reality immersionVSAvoidvisibility of physical world
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The system dynamically transitions between VR and AR states based on detected user interactions with physical objects. The HMD switches from providing full virtual reality immersion to displaying augmented reality content that includes views of the physical world, allowing the user to see both virtual and physical environments as needed

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the parameter of visual content delivery by transitioning between different reality states. When a physical object is detected, the system modifies the display content to include augmented reality overlays showing the physical world, thereby changing the degree of physical world visibility from blocked to partially visible

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If sensors are attached to the user's body parts for tracking, then the tracking precision is improved, but the device complexity and user burden increase

Engineering Contradiction:
Improvebody part position trackingVSAvoidsensor attachment system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Instead of attaching sensors to the user's body, the system uses cameras to capture images of the physical world and digitally copies/identifies body parts within those images. This virtual copying approach achieves tracking functionality without physical sensor attachments, reducing device complexity and user burden

Inventive Principle:
Principle #26Copying

3Adaptability or versatility

If the system transitions between VR and AR states based on object interaction, then the user experience adaptability is improved, but the transition detection accuracy deteriorates

Engineering Contradiction:
Improvereality state transitionVSAvoidinteraction detection
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The system continuously monitors user interactions with physical objects and uses this feedback to determine when to transition between VR and AR states. By analyzing interaction patterns and providing real-time feedback, the system improves the accuracy of transition detection while maintaining adaptability to user needs

Inventive Principle:
Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables smooth and intuitive transitions between VR, AR, and MR states by accurately detecting user interactions and body part positions, enhancing the immersive experience and user interface with precise control and visualization of virtual and real-world elements.

Implementation Method 1

The body part sensor system may comprise one or more sensors selected from of the following: capacitive sensors

Methodology Applied
Scientific EffectCapacitance: Capacitance

Implementation Method 2

optical sensors

Methodology Applied
Scientific EffectOptical detection: Photoelectric Effect

Implementation Method 3

camera system

Methodology Applied
Scientific EffectImage capture and processing: Photography

Data Source

PatentUS11112856B2Transition between virtual and augmented reality
Publication Date: 2021.09.07 LOGITECH EUROPE SA
  • US11112856B2 patent drawing
  • US11112856B2 patent drawing
  • US11112856B2 patent drawing

AI summary

In an embodiment there is provided a user interface device for interfacing a user with a computer, the computer comprising at least one processor to generate instructions for display of a graphical environment of a virtual reality simulation. The user interface device includes a sensor for detecting activation and/or a sensor for detecting proximity of a body part of the user (e.g., hand). At least partially based on detection by one of these sensors, a transition between virtual reality states is triggered.