Head-Mounted Display 360-Degree Camera Field of View
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Solution Overview
Problem
Current head-mounted displays with cameras lack a comprehensive 360-degree horizontal field of view, limiting their ability to provide an immersive and interactive experience by not effectively capturing and displaying the environment around the user.
Innovation Solution
The implementation of a head-mounted display system with multiple cameras, both display-mounted and support-mounted, that have overlapping fields of view to achieve a 360-degree horizontal field of view, allowing for both optical and video passthrough capabilities, enabling the capture and display of the environment from various angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If multiple cameras with overlapping fields of view are used to achieve 360-degree horizontal field of view, then the field of view coverage is improved, but the device complexity increases
Solution Approach 1:
The head-mounted display divides the 360-degree horizontal field of view into multiple overlapping segments, each captured by a separate camera. The cameras are positioned at different locations (display-mounted and support-mounted) with their fields of view overlapping to ensure complete coverage. This segmentation approach allows the system to achieve comprehensive field of view coverage while managing device complexity through modular camera placement and overlapping coverage zones.
2Adaptability or versatility
If cameras are positioned to capture extended field of view outside forward field of view, then the environmental awareness is improved, but the device structure becomes more complex
Solution Approach 1:
The system extends field of view coverage from the traditional forward-facing single dimension to multiple spatial dimensions by positioning cameras both on the display unit and on the head support structure. This multi-dimensional camera arrangement captures environmental information from forward, side, and rear directions, significantly improving environmental awareness while distributing the structural complexity across different mounting locations.
3Adaptability or versatility
If overlapping camera fields of view are used to provide 360-degree coverage, then the immersive experience is improved, but the image processing requirements increase
Solution Approach 1:
The patent introduces image processing as an intermediary function that receives overlapping camera inputs and synthesizes them into a cohesive 360-degree visual experience. The system processes images from multiple cameras with overlapping fields of view, stitching and blending them to create seamless panoramic views. This intermediary processing step enables the immersive experience while managing the complexity of handling multiple camera inputs through standardized image processing pipelines.
Data Source
AI summary
A head-mounted display includes a display unit, a head support, and cameras. The display unit includes a display for outputting graphical content. The head support is coupled to the display unit for engaging a head of a user to support the display unit with the display in front of an eye of the user. The cameras are each coupled to one of the display unit or the head support. The cameras have camera fields of view that overlap horizontally to cooperatively provide the head-mounted display with a head-mounted display field of view of 360 degrees horizontal.