Head-Mounted Display Viewpoint Control for Immersive VR Navigation
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Solution Overview
Problem
Existing head-mounted display systems lack convenient display control technologies that enhance user immersion and accessibility for a broader range of users.
Innovation Solution
A display control apparatus that generates virtual space images by specifying a viewpoint position and direction of line of sight, allowing the viewpoint position to be changed based on the attitude of the head-mounted display, with greater horizontal movement than perpendicular movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the viewpoint position is fixed, then the display control is simple, but the user cannot explore the virtual space effectively
Solution Approach 1:
The system automatically adjusts the viewpoint position based on detected line-of-sight direction, eliminating the need for manual viewpoint control operations. The display control section serves itself by integrating line-of-sight detection and automatic viewpoint adjustment, reducing operational complexity while enhancing user exploration capability
Solution Approach 2:
The system implements a feedback loop where line-of-sight direction is detected and used to automatically adjust the viewpoint position. This closed-loop control enables intuitive spatial exploration without requiring complex manual controls, as the system continuously adapts to user gaze direction
2Adaptability or versatility
If the viewpoint position changes frequently, then the user can explore more of the virtual space, but the line of sight cannot be maintained on the first position
Solution Approach 1:
Instead of maintaining line of sight on a fixed first position while changing viewpoint, the system inverts the approach by dynamically adjusting the first position to remain at the center of the display screen regardless of viewpoint changes. This ensures the reference point is always visible while allowing free viewpoint exploration
Solution Approach 2:
The system dynamically adjusts both the viewpoint position and the first position (line of sight target) based on line-of-sight detection. This dynamic coordination allows the viewpoint to change for exploration while the first position adapts to remain centered, preventing loss of reference information
3Ease of operation
If the head-mounted display provides fixed viewpoint, then the device is simple to operate, but the sense of immersion is reduced
Solution Approach 1:
The head-mounted display system automatically adjusts the viewpoint based on detected line-of-sight direction without requiring manual operation. This self-adjusting capability maintains operational simplicity while enabling immersive exploration, as the system adapts to user gaze naturally
Solution Approach 2:
The system implements dynamic viewpoint adjustment that responds to user line-of-sight direction, transforming the fixed viewpoint into a dynamic one. This enables the display to adapt to user movements and gaze, enhancing immersion while maintaining ease of operation through automatic control
Data Source
AI summary
Methods and apparatus provide for: generating a virtual space image by specifying a viewpoint position and a direction of line of sight and display the image on a head-mounted display, specifying a plurality of positions in the virtual space as viewpoint positions, changing the viewpoint position to a position determined from among the plurality of positions in accordance with an operation by a user, specifying a direction of line of sight, when the viewpoint position is changed, and displaying an image based on a same virtual three-dimensional space on the head mounted display and a display device other than the head mounted display.