Virtual Camera Orientation Control via Head Motion
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Solution Overview
Problem
Existing image display systems in virtual reality require users to manually direct the line of sight of a virtual camera to objects, which can be cumbersome and reduces operability.
Innovation Solution
An image display system that includes a goggle apparatus with a processor that automatically adjusts the virtual camera's orientation in a virtual space based on the user's head movements, ensuring objects remain in the center of the field of view by rotating the virtual camera in the yaw and pitch directions, and moving the object or camera to maintain optimal viewing angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is required to direct the virtual camera to the object, then the user can precisely control the camera position, but the operability and ease of interaction deteriorates
Solution Approach 1:
The virtual camera automatically directs itself to the object based on the user's head movement detection, eliminating the need for manual camera control operations. The system serves itself by autonomously adjusting the camera orientation while the user simply needs to move their head to indicate viewing direction.
Solution Approach 2:
The patent replaces manual mechanical camera control with an automated system that uses motion sensors to detect head movements and automatically adjusts the virtual camera's orientation accordingly, substituting manual mechanical operations with an automated sensing and control system.
2Adaptability or versatility
If the virtual camera is fixed in position, then the system structure is simple, but the adaptability to user movement and viewing preferences deteriorates
Solution Approach 1:
The virtual camera transitions from a fixed position to a dynamic position that automatically adjusts based on detected head movements. The camera's orientation and position change dynamically in response to user movement, providing adaptability while maintaining system simplicity through automated control.
Solution Approach 2:
The system implements feedback by continuously monitoring head movement through motion sensors and using this information to automatically adjust the virtual camera's orientation. This closed-loop feedback mechanism enables the camera to adapt to user movement without requiring complex manual control inputs.
3Ease of operation
If the object position is fixed in the virtual space, then the scene stability is maintained, but the ease of interaction when user orientation changes deteriorates
Solution Approach 1:
The system performs preliminary action by proactively moving the object into the user's field of view based on detected head orientation changes. Before the user would need to manually search for the object, the system has already positioned it appropriately, making interaction easier while the object maintains its logical position in the virtual scene.
Data Source
AI summary
An example of an image display system includes a goggle apparatus having a display section. A virtual camera and a user interface are placed in a virtual space. The orientation of the virtual camera in the virtual space is controlled in accordance with the orientation of the goggle apparatus. When the goggle apparatus rotates by an angle greater than or equal to a predetermined angle in a pitch direction, the user interface is moved to the front of the virtual camera in a yaw direction.