HMD Error Correction via Frame Substitution and Pixel Interpolation
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Solution Overview
Problem
In mixed reality systems using video see-through Head Mounted Displays (HMDs), communication errors during wireless image transmission can lead to disrupted views of the real world, making it difficult for users to maintain sight, especially when errors occur frequently due to environmental factors or distance, and interpolation methods struggle to reconstruct accurate stereoscopic images as error frequencies increase.
Innovation Solution
A head-mounted display system with an input unit for sequential image frames, a determination unit to detect error portions, and a display control unit that decides whether to display the previous frame or correct the error using surrounding pixel groups, ensuring a stable image presentation by assessing error size and previous frame data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless image transmission is used in HMD systems, then device portability and flexibility are improved, but communication errors occur frequently due to environmental factors or distance
Solution Approach 1:
The system performs preliminary actions by detecting errors in incoming image frames and preparing correction strategies (substitution with previous frame or interpolation using surrounding pixels) before displaying the corrected image. This proactive error handling ensures continuous reliable display despite wireless transmission issues.
2Manufacturing precision
If error correction through interpolation is used, then image accuracy is improved for small errors, but the method fails to reconstruct accurate stereoscopic images when error frequency increases
Solution Approach 1:
The system dynamically switches between different error correction strategies based on real-time conditions: using interpolation for small isolated errors, substituting previous frames for moderate errors, and displaying only the real-world view for severe or frequent errors. This dynamic adaptation maintains image quality and stereoscopic accuracy across varying error frequencies.
3Stability of the object's composition
If frequent error correction is performed, then image stability is improved, but processing time and computational load increase
Solution Approach 1:
The system applies partial correction actions based on error severity: only correcting specific error portions through interpolation when errors are small, using frame substitution for moderate errors, and skipping correction for severe errors by displaying the real-world view directly. This selective approach maintains stability while minimizing processing overhead.
Data Source
AI summary
A display control unit causes a display device to display the synthesized image in a case where the determination unit does not determine that the error region exists in the synthesized image, and causes the display device to display the physical space image in a case where the determination unit does determine that the error region exists in the synthesized image.