Virtual Space Display Segmentation for Avatar Gaze Estimation
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Solution Overview
Problem
In virtual spaces, the line of sight of a user operating an avatar is often unclear, as existing technologies do not accurately determine what the user is looking at beyond the direct line of sight, leading to ambiguity in user interactions.
Innovation Solution
A virtual space providing device that includes a detection unit to track the direction of the avatar, an output control unit to alter the display mode outside a predetermined range, and an estimation unit to accurately estimate the user's line of sight based on the altered output image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the line of sight is estimated based on the avatar's direction only, then the estimation is simple, but the accuracy is insufficient because users may not always look at objects directly ahead of the avatar
Solution Approach 1:
The patent segments the virtual space display into a predetermined range (center area) and outside range (peripheral areas). By applying different display modes to different segments, the system can accurately estimate line of sight based on user interaction with the center range while maintaining simplified processing for peripheral areas. This segmentation enables accurate line of sight estimation without requiring complex analysis of the entire virtual space.
Solution Approach 2:
The patent applies different display modes to different regions of the virtual space image. The predetermined range (where users are most likely to look) uses one display mode optimized for line of sight estimation, while outside ranges use different display modes. This local differentiation allows the system to focus computational resources on the most critical area for accurate line of sight estimation without unnecessarily complex processing the entire space.
2Measurement precision
If the entire virtual space is displayed with uniform display mode, then the display is simple, but the line of sight estimation becomes ambiguous when multiple objects are visible
Solution Approach 1:
The patent divides the displayed virtual space image into a predetermined range (center area where users typically focus) and outside ranges. By segmenting the display control, the system can apply specialized display modes to the predetermined range that enhance line of sight estimation accuracy, while using simpler display modes for peripheral areas. This segmentation strategy improves measurement precision without proportionally increasing overall system complexity.
Solution Approach 2:
The patent implements local quality differentiation by applying distinct display modes to different spatial regions. The predetermined range receives display mode optimization for line of sight estimation (such as enhanced contrast or highlighting), while outside ranges use standard display modes. This localized optimization enables accurate line of sight detection without requiring complex display control across the entire virtual space.
3Measurement precision
If the display shows only objects ahead of the avatar's line of sight, then the line of sight estimation is clear, but the user cannot see surrounding objects that may be important for interaction
Solution Approach 1:
The patent segments the virtual space display into a predetermined range (center area) and outside ranges (peripheral areas). This segmentation allows the system to maintain clear line of sight estimation through the predetermined range while simultaneously displaying surrounding objects in outside ranges. The segmented display structure enables both accurate line of sight detection and comprehensive environmental awareness, resolving the contradiction between measurement precision and interaction versatility.
Solution Approach 2:
The patent introduces a spatial dimensionality approach by differentiating display modes across different spatial regions. The predetermined range uses one display mode optimized for line of sight estimation, while outside ranges use different display modes that preserve surrounding object visibility. This multi-dimensional display strategy allows the system to provide both clear line of sight information and comprehensive environmental context simultaneously, enhancing both measurement accuracy and user interaction capability.
Data Source
AI summary
Provided are a virtual space provision device and the like capable of more accurately estimating the line of sight of a user who uses an avatar to use a virtual space. A virtual space provision device according to an embodiment of the present disclosure is provided with: a detection unit that detects the orientation of an avatar in a virtual space, the orientation of the avatar changing in response to a user's operation; an output control unit that performs control to output, to the user, an output image which corresponds to the orientation of the avatar in the virtual space, and in which the display mode of the outside of a prescribed region has been changed; and an estimation unit that estimates the line of sight of the user on the basis of the prescribed region in the output image.