Dynamic Operation Area Adjustment in Head Mounted Displays
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Solution Overview
Problem
Existing head-mounted displays with fixed window positions can complicate user operations, as users need to move in accordance with application positions, leading to cumbersome interactions.
Innovation Solution
A head-mounted display system that includes an image pickup unit, detector, position specifying unit, and setting unit to dynamically set an operation area based on user input and detected positions, allowing intuitive operation by defining a 'home position' for application interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an absolute coordinate system is used to define application positions in head mounted display, then the display position can be precisely controlled, but the user must move in accordance with application positions making operation complicated
Solution Approach 1:
The patent makes the operation area dynamic rather than fixed. The setting unit dynamically adjusts the operation area based on the user's detected position and line of sight, allowing the interface to adapt to user movement rather than requiring the user to adapt to a fixed coordinate system. This resolves the contradiction by maintaining precise positioning capabilities while eliminating the need for users to consciously track and move to specific absolute coordinates.
Solution Approach 2:
The system performs automatic positioning of the operation area based on detected user position and orientation. The detector and position specifying unit automatically track user movement, and the setting unit automatically repositions the operation area accordingly, eliminating the need for manual intervention or conscious user effort to maintain proper viewing position.
2Stability of the object's composition
If fixed window positions are controlled on display, then the display layout can be maintained, but user interaction becomes cumbersome requiring coordinated movement
Solution Approach 1:
The operation area is implemented as a dynamic region that automatically repositions itself based on user location and orientation detected by the image pickup unit and detector. This maintains display composition stability from the system's perspective while adapting the interactive region's position to match user behavior, eliminating the need for users to consciously coordinate their movement with fixed display elements.
3Measurement precision
If absolute positioning is used for applications, then precise location control is achieved, but operation complexity increases due to required user movement
Solution Approach 1:
The system automatically performs position tracking and operation area repositioning based on user movement. The detector continuously monitors user position and the setting unit automatically adjusts the operation area location, eliminating the need for users to manually manage or consciously track absolute positions. This maintains precise position control while reducing operational complexity to simple natural movements.
Data Source
AI summary
In a head mounted display 100, a memory 71 stores an application. An image pickup unit 74 takes an image of a site of a user 1, and a position specifying unit 73 specifies a position and a direction of the head mounted display 100. A detector 75 detects a position indicated by the user 1 on the basis of the image taken by the image pickup unit 74, and a setting unit 76 sets a position indicating a home position on the basis of a result detected by the detector 75 and the position and the direction specified by the position specifying unit 73.