Virtual Space Content Orientation by Posture-Based Region Control
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Solution Overview
Problem
Existing systems that provide a user with an image of a virtual space through a head-mounted display face challenges in managing large amounts of content, leading to increased calculation demands and potential processing failures, while limiting display control can impair user convenience.
Innovation Solution
A virtual space presentation device that includes a virtual space generation unit, detection unit, posture determination unit, and region control unit to manage the display direction of content within a target region, ensuring it aligns with the vertical direction of the head-mounted display, thereby reducing calculation load and maintaining user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If display control is performed so that the display direction of all content always coincides with the vertical direction of the head-mounted display, then user convenience is maintained, but the amount of calculation increases leading to depletion of calculation resources and processing failures
Solution Approach 1:
The patent divides the virtual space into multiple regions (first region and second region) based on vertical direction. Content in the first region (within a predetermined angle from vertical direction) has its display direction controlled to coincide with the head-mounted display's vertical direction, while content in the second region does not require such control. This segmentation reduces the calculation load by applying display control only to a subset of content rather than all content uniformly.
Solution Approach 2:
The patent applies different display control strategies to different regions of the virtual space. The first region receives full display direction control to maintain user convenience, while the second region uses a different approach (no control or alternative control method). This local differentiation allows the system to maintain user convenience in the critical viewing area while reducing overall calculation requirements.
2Power
If content whose display direction is to be controlled is limited too much, then the amount of calculation is reduced, but user convenience is impaired
Solution Approach 1:
The patent dynamically determines the range of the first region based on the user's posture detected by the posture detection unit. When the user is in a sleeping posture, the first region is expanded to include more content, ensuring comprehensive display control for comfort. When the user is in an awake posture, the first region is reduced, decreasing calculation load. This dynamic adjustment balances calculation requirements with user convenience based on real-time posture detection.
Data Source
AI summary
A server of an embodiment includes a virtual space generation unit configured to generate a virtual space that includes a user's virtual viewpoint therein and in which virtual content is disposed, a detection unit configured to detect an orientation of an HMD worn on the user's head to display a portion of the virtual space which is visible from the virtual viewpoint, a display control unit configured to control a display direction of the content disposed in a target region in the virtual space to make a vertical direction of the content and a vertical direction of the HMD coincide with each other, a posture determination unit configured to determine the user's posture on the basis of a state of the HMD, and a region control unit configured to determine a range of the target region in accordance with the user's posture determined by the posture determination unit.