Head-worn Display Device Multi-Reference Frame Processing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing head-worn display devices face challenges in efficiently displaying images conforming to multiple projection reference frames, requiring complex modifications and high certification costs, while also struggling to meet real-time needs due to latency issues.
Innovation Solution
A head-worn display device comprising an image acquisition module, spatial processing modules, a mixing module, and a projection module, which separately acquires and adapts image streams for multiple projection reference frames, generates a resulting stream, and projects it onto a display surface, allowing for real-time image display and easy application development by external customers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the head-worn display device includes all graphics generation logic and mixes images for different projection reference frames, then the device can display information in multiple reference frames, but the device complexity increases and requires modifications for each new application
Solution Approach 1:
The patent divides the display system into separate functional modules: an image acquisition module that receives images from external sources, spatial processing modules that handle different projection reference frames independently, and a mixing module that combines the processed images. This segmentation allows each module to be optimized independently and reduces the complexity of the overall system while maintaining multi-reference frame capability.
2Ease of manufacture
If external clients develop applications with dedicated programming interfaces, then application development becomes easier, but the complexity and cost of setting up and certifying the interfaces increase
Solution Approach 1:
The patent creates a universal image acquisition module with standardized interfaces that can work with multiple projection reference frames and different external image sources. This universal design allows external clients to develop applications once and have them work across different reference frame configurations, reducing the need for multiple dedicated interfaces and their associated certification complexities.
3Device complexity
If image generation is done upstream by external equipment, then the head-worn display device structure is simplified, but significant latencies occur when real-time performance is needed
Solution Approach 1:
The patent implements spatial processing modules that perform preliminary processing of images for different projection reference frames within the head-worn display device itself. By preparing the images in advance through dedicated spatial processing before they reach the mixing module, the system reduces real-time latency while maintaining a relatively simple overall structure.
Data Source
AI summary
A head-worn display device carried for displaying an image in accordance with at least two projection reference frames, including an image acquisition module configured to separately acquire an image stream for each of the at least two projection reference frames and/or to extract from a single input stream an image stream for each of the at least two projection reference frames. The head-worn display device also includes a spatial processing module configured to adapt the corresponding image stream to a display reference frame for each projection reference frame, a mixing module configured to generate a resulting stream, and a projection module configured to project the resulting stream onto a display surface in accordance with the display reference frame.