Head-Mounted Display Virtual Space Sightline Tilt
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Solution Overview
Problem
Existing head-mounted display (HMD) systems for providing virtual spaces to users are limited in creating an immersive experience, as they primarily focus on displaying virtual publications in real space images without dynamic interaction or advanced visualization techniques.
Innovation Solution
A program that generates a virtual space on a computer, determines a user's basic sightline, selects a main image from a sequence of display objects, and outputs this immersive virtual space to a head-mounted display, allowing for dynamic object placement and visualization effects to enhance user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If virtual publications are displayed in real space images captured by camera, then the system can provide virtual content overlay, but the immersion experience is limited
Solution Approach 1:
The patent transitions from 2D screen-based virtual publication display to 360-degree spherical virtual space display. The spherical display area encompasses the user's field of view, allowing virtual content to be displayed in all directions rather than confined to a flat screen, thereby enhancing immersion while maintaining virtual content display capability
Solution Approach 2:
The patent introduces a spherical display area as an intermediary between the user and virtual content. This spherical space acts as a mediator that projects virtual publications and objects in three dimensions, improving immersion while preserving the ability to display virtual content through the head-mounted display
2Loss of information
If multiple display objects are placed in virtual space according to sequence, then content organization is improved, but system complexity increases
Solution Approach 1:
The patent segments virtual content into multiple discrete display objects that can be independently positioned and managed in the spherical virtual space. Each display object represents a portion of the content sequence, allowing organized presentation while enabling independent control and rendering of individual elements
Solution Approach 2:
The patent organizes display objects in three-dimensional spherical space rather than linear two-dimensional sequences. This spatial arrangement allows content to be organized by position and orientation in 3D space, improving content accessibility and organization while the spherical coordinate system provides a natural framework for managing multiple objects
3Ease of operation
If visual effects are applied to display objects, then user engagement is enhanced, but motion sickness may occur
Solution Approach 1:
The patent applies visual effects selectively to specific display objects based on their position, type, and importance within the spherical virtual space. Rather than uniformly applying effects to all objects, the system tailors visual enhancements to individual elements, maintaining user engagement while controlling the intensity and distribution of potentially disorienting effects
Solution Approach 2:
The patent implements a feedback mechanism that monitors user interaction and physiological responses to adjust visual effects in real-time. When motion sickness symptoms are detected or predicted, the system automatically reduces or modifies visual effects, creating a closed-loop control system that balances engagement enhancement with comfort maintenance
Data Source
AI summary
A method for providing, to a head-mounted display, a virtual space into which a user is immersed includes the step of generating a virtual space into which a user is immersed. A basic sightline of the user is determined. A main image is selected from among a plurality of display objects. The main image is caused to be displayed in the virtual space in such a manner as to be associated with the basic sightline. The virtual space is outputted to the head-mounted display. The basic sightline moves in response to a motion of the head-mounted display in a pitch direction, in a yaw direction, and in a roll direction. The main image is so placed as to be tilted such that the basic sightline forms an angle of smaller than 90° with the main image in a plane including the yaw direction and the roll direction.