Virtual Space Image Update Timing for Motion Sickness Reduction

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Solution Overview

Problem

Users often experience discomfort, including motion sickness, when images displayed in a three-dimensional virtual space change simultaneously with their viewpoint, leading to an uncomfortable virtual experience.

Innovation Solution

An information processing device and method that controls the display of a three-dimensional virtual space, focusing on changing the viewed target image while keeping the peripheral image fixed, allowing users to maintain attention on the primary image and predict subsequent changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If all images in the three-dimensional virtual space are changed simultaneously, then the virtual environment can be updated efficiently, but the user experiences discomfort and motion sickness

Engineering Contradiction:
Improveimage update efficiencyVSAvoiduser discomfort
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent divides the virtual space images into two segments: a viewed target image (center region) and a peripheral image (surrounding region). These segments are updated independently with different timing, allowing efficient overall updates while protecting the user from simultaneous changes that cause discomfort.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies different update characteristics to different regions of the virtual space. The viewed target image updates at a first timing while the peripheral image updates at a second timing (different from the first). This local differentiation allows efficient updates where needed while maintaining stability in regions that affect user comfort.

Inventive Principle:
Principle #3Local quality

2Speed

If the viewed target image is changed frequently, then the user can access new content quickly, but the user's attention is disrupted and discomfort increases

Engineering Contradiction:
Improveimage change speedVSAvoidattention disruption
Core Design Contradiction:
SpeedVSObject-affected harmful factors

Solution Approach 1:

The patent updates the peripheral image in advance (at a second timing) before updating the viewed target image (at a first timing). This preliminary action prepares the surrounding context so that when the target image changes, the user's attention is not disrupted by simultaneous peripheral changes, reducing discomfort.

Inventive Principle:
Principle #10Preliminary action

3Stability of the object's composition

If the peripheral image is changed along with the viewed target image, then the virtual space consistency is maintained, but the user experiences motion sickness

Engineering Contradiction:
Improvevirtual space consistencyVSAvoidmotion sickness
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The patent segments the virtual space display into viewed target image and peripheral image regions, allowing them to be updated independently at different timings. This segmentation maintains virtual space consistency while preventing the simultaneous changes that cause motion sickness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic update timing where the peripheral image updates at a second timing and the viewed target image updates at a first timing. This dynamic differentiation in update timing maintains the necessary consistency for virtual space coherence while avoiding the harmful effect of synchronized changes.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11182950B2Information processing device and information processing method
Publication Date: 2021.11.23 SONY GROUP CORP
  • US11182950B2 patent drawing
  • US11182950B2 patent drawing
  • US11182950B2 patent drawing

AI summary

The present disclosure proposes a new and improved information processing device and information processing method capable of reducing user's uncomfortable feeling upon changing an image displayed in a three-dimensional virtual space. According to the present disclosure, there is provided an information processing device including a control unit that performs control to display, with a user's first-person viewpoint, a three-dimensional virtual space where a viewed target image is arranged to change the viewed target image while fixing a peripheral image of the viewed target image. The viewed target image is a target to be viewed by a user.