Head-Mounted Display Viewpoint Control for Directional Guidance
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Solution Overview
Problem
Users wearing shielded head-mounted displays lose their sense of direction and may move unintentionally due to the inability to see external information, limiting communication methods for conveying directions.
Innovation Solution
An image generation apparatus with a viewpoint information acquisition section, real space information acquisition section, viewpoint control section, and output section that moves the virtual viewpoint between the user's and another person's perspective, allowing external information to be conveyed by including the outside person and directional indicators within the user's field of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a shielded head-mounted display is used to block external light, then immersion into the video image is improved, but the user loses sense of direction and cannot see external information
Solution Approach 1:
The field of view is segmented into multiple regions, with a first region displaying the video image and a second region displaying real-space information. This segmentation allows the user to simultaneously access both the immersive video content and external spatial information without removing the head-mounted display.
Solution Approach 2:
Real-space information is overlaid as a transparent or semi-transparent layer on top of the video image in the field of view. This dimensional layering allows both the video content and external information to coexist in the same visual space, enabling the user to maintain immersion while accessing directional cues.
2Device complexity
If communication means are limited for outside persons, then the head-mounted display maintains simplicity, but conveying directions becomes difficult and requires suspending image appreciation
Solution Approach 1:
The head-mounted display acts as an intermediary device that captures real-space information through sensors and presents it to the user in an intuitive format within the field of view. This allows outside persons to convey directions by simply indicating positions in real space, which are then automatically translated into visual cues for the user.
Solution Approach 2:
The mechanical system of verbally communicating directions is replaced with an optical/information system where real-space data is captured by sensors and displayed visually. This substitution eliminates the need for the user to suspend image appreciation or take off the display to receive directional information.
Data Source
AI summary
In an image generation apparatus, a viewpoint information acquisition section acquires information regarding a viewpoint of a user wearing a head-mounted display. A real space information acquisition section acquires information regarding a real space where the user and an information provider are present. A viewpoint control section moves the viewpoint in display from a user's viewpoint to another person's viewpoint including an object present in the real space in a field of view. An image generation section generates an image relative to the determined viewpoint and outputs the image from an output section.