Avatar Enlargement in Virtual Reality Head-Mounted Displays
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Solution Overview
Problem
Existing virtual reality systems fail to provide clear visual recognition of distant or small avatar movements, limiting effective communication through body language in shared virtual spaces.
Innovation Solution
A method that identifies relative positional relationships and line of sight conditions between avatars in a virtual space, displaying specific parts of an avatar in an enlarged manner on a user's head-mounted device when predetermined conditions are met, such as distance or size, to enhance visual recognition of avatar movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If avatar movements are displayed at normal scale in virtual space, then the system maintains realistic spatial relationships, but distant or small avatar movements become visually indistinguishable
Solution Approach 1:
The patent applies local quality by selectively enlarging specific regions (avatar images) within the visual field rather than enlarging the entire display. The controller identifies avatar positions and determines whether to enlarge them based on distance and size conditions, applying different display qualities to different regions of the visual field. This resolves the contradiction by maintaining realistic spatial relationships in the overall scene while enhancing visual recognition precision for specific avatar movements through localized enlargement.
2Measurement precision
If all avatar movements are enlarged for better visibility, then visual recognition improves, but the sense of spatial proportion and realism is lost
Solution Approach 1:
The patent maintains spatial relationship stability by applying enlargement selectively rather than universally. The controller evaluates each avatar's distance and size conditions, enlarging only those that meet the criteria for better visibility. This localized approach preserves the overall spatial composition and realistic proportions of the virtual environment while improving avatar movement visibility where needed.
Solution Approach 2:
The patent applies partial action by enlarging only specific avatar images that meet predetermined conditions (distance and size thresholds) rather than enlarging all avatars. This selective enlargement provides excessive visibility enhancement for distant or small avatars while maintaining normal scale for closer, larger avatars, thus preserving spatial realism while improving visibility where necessary.
3Ease of operation
If the system enlarges avatar images to improve visibility, then communication effectiveness increases, but processing complexity and computational load increase
Solution Approach 1:
The patent reduces processing complexity by applying enlargement only to avatar images that meet specific conditions (distance greater than threshold and size smaller than threshold). This partial action approach avoids the computational burden of processing all avatar images uniformly, while still achieving improved communication effectiveness for distant or small avatars that require enhanced visibility.
Solution Approach 2:
The patent implements preliminary action by pre-establishing distance and size thresholds that determine when enlargement should occur. The controller compares actual avatar positions and sizes against these predetermined conditions before initiating enlargement, which streamlines the decision-making process and reduces real-time processing complexity while maintaining communication effectiveness.
Data Source
AI summary
A method includes defining a virtual space, wherein the virtual space comprises a second avatar object and a first avatar of object, the first avatar object is associated with a first user, and the first user is associated with a first head-mounted device (HMD). The method further includes identifying a position of the first avatar object in the virtual space. The method further includes defining a visual field from the position in the virtual space. The method further includes generating a visual-field image corresponding to the visual field. The method further includes displaying the visual-field image on the first HMD. The method further includes identifying a relative positional relationship between the first avatar object and the second avatar object. The method further includes displaying an enlarged image of at least a part of the second avatar object in response to the relative positional relationship satisfying a predetermined condition.