Head-Mounted Display Spatial Placement for Natural Stereoscopic Images
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Solution Overview
Problem
Existing head-mounted displays struggle with displaying superimposed images in a stereoscopic view, leading to unnatural appearance and potential visually induced motion sickness due to improper placement and focus issues.
Innovation Solution
A head-mounted display system that determines the virtual distance of a superimposition image based on the three-dimensional space in the field of view, using stereo cameras and image processing to adjust the image placement and parallax for natural and easy recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a superimposition image is displayed in front without relation to three-dimensional space, then the image can be displayed simply as a two-dimensional window, but the image looks unnatural and is hard to be focused
Solution Approach 1:
The patent applies dimensionality change by transitioning from two-dimensional image display to three-dimensional spatial placement. The superimposition image is positioned at specific coordinates (x, y, z) within the three-dimensional space of the field of view, where z represents the distance from the user. This allows the image to be displayed at various depths, creating a natural spatial relationship that improves focusability and visual comfort while maintaining display simplicity through automated spatial positioning.
2Reliability
If a superimposition image is displayed in a stereoscopic view, then the image can be integrated into the three-dimensional space, but the image may cause visually induced motion sickness if improperly placed
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the spatial parameters (position and distance) of the superimposition image based on the surrounding three-dimensional environment. The system analyzes the depth distribution of objects in the field of view and positions the superimposition image at an appropriate distance z, ensuring it integrates naturally into the stereoscopic view while avoiding positions that would cause visual discomfort or motion sickness.
3Stability of the object's composition
If the superimposition image is placed at a fixed distance, then the image can be displayed consistently, but the image does not adapt to different three-dimensional space states
Solution Approach 1:
The patent applies dynamics by making the superimposition image position adaptive rather than fixed. The system continuously monitors the three-dimensional space state and adjusts the image distance z based on the depth distribution of surrounding objects. This dynamic positioning maintains consistent visual integration while adapting to changing spatial environments, resolving the contradiction between stability and adaptability.
Data Source
AI summary
Disclosed is a head-mounted display implementing stereoscopic vision, including a superimposition image controlling section that determines a virtual distance of a superimposition image to be displayed, according to a state of a three-dimensional space in a field of view, a display image generation section that generates data of a display image including the superimposition image in a state in which the superimposition image is placed at the virtual distance in the three-dimensional space, and an output controlling section that outputs the data of the display image to a display panel.