Display System Switching Between Projector and HMD
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Solution Overview
Problem
Head-mounted display apparatuses face challenges in maintaining a high frame rate to ensure comfortable and recognizable image display, especially when the position of the superimposed image is far from the user, leading to issues with stereoscopic image recognition.
Innovation Solution
A display system that includes a projector and a head-mounted display apparatus, which uses map data to determine the position of an object image in real space and decides whether to display it on the projector or the head-mounted display based on the user's head position, optimizing image placement to reduce processing load and enhance recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the head-mounted display apparatus displays the object image at a position far from the user, then the image can be displayed in the real space, but the user cannot visually recognize the stereoscopic image
Solution Approach 1:
The patent introduces a display device (projector) as an intermediary to display the object image on a display surface when the position is far from the user. The system determines that when the distance between the user and the object image position exceeds a threshold, the display device should display the image instead of the head-mounted display apparatus, ensuring the user can still visually recognize the image.
2Productivity
If the head-mounted display apparatus increases the frame rate to allow comfortable visual recognition, then the image quality improves, but the processing load increases
Solution Approach 1:
The patent extracts the function of displaying object images from the head-mounted display apparatus and transfers it to a separate display device based on position information. When the object image position is far from the user, the display device displays the image, reducing the processing load on the head-mounted display apparatus while maintaining visual recognition quality.
3Adaptability or versatility
If the head-mounted display apparatus displays the object image, then the image can be superimposed on the real space, but when the position is too far from the user, the image may not be visually recognizable
Solution Approach 1:
The patent implements dynamic switching between display devices based on the user's position and the object image position. The system continuously monitors position information and dynamically determines which device should display the image - the head-mounted display apparatus when the object is close, or the display device when the object is far - ensuring optimal visual recognition under different conditions.
Data Source
AI summary
A display system includes a projector, an HMD, and an information processing device. The information processing device includes a processing device storage unit configured to store three-dimensional map data in which setting information in which a display position of an object is set and positional information indicating a position of a display surface are registered, and image data of an object image, and a processing control unit configured to select whether to display the object image on the projector or to display the object image on the HMD, based on a positional relationship between a position of the HMD notified from the HMD and the display position of the object, and transmit the image data of the object image to the projector or the HMD being selected.