Head-Mounted Display Image Processing System
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Solution Overview
Problem
Existing image displaying systems face challenges in maintaining high-quality image display stability, especially when the visual field changes or the displayed world moves, due to increased data transmission requirements and potential losses or delays in wireless communication.
Innovation Solution
The system employs an image displaying system that includes an image generation apparatus and a display apparatus. The image generation apparatus down-samples and transmits image data, while the display apparatus up-samples and performs distortion correction, providing an opposite change to the image data based on chromatic aberration for each primary color, to ensure stable and high-quality image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the resolution is increased or complicated calculation becomes required to implement a more realistic image representation, then the image quality is improved, but the cost for image processing and data transmission increases
Solution Approach 1:
The patent divides the image processing tasks into two segments: complex processing (distortion correction for each primary color) is performed on the image generation apparatus side before transmission, while simpler processing (up-sampling) is performed on the display apparatus side. This segmentation reduces the data transmission amount while maintaining image quality by transmitting already-processed images at lower resolution.
Solution Approach 2:
The patent applies distortion correction for each primary color in advance on the image generation apparatus before transmission. By performing this computationally intensive processing beforehand, the patent reduces the processing burden on the display apparatus and minimizes the data transmission requirements while ensuring high image quality is achieved.
2Ease of operation
If wireless communication is used to allow easy movement of the user, then the ease of operation is improved, but data loss or delay occurs increasing the risk that stability in display is compromised
Solution Approach 1:
The patent extracts the complex image processing functions (distortion correction for each primary color) from the wireless display system and concentrates them on the image generation apparatus. This extraction reduces the computational burden and data transmission requirements on the wireless link, thereby improving display stability while maintaining user mobility benefits.
3Productivity
If down-sampling is performed to reduce data transmission amount, then the data transmission efficiency is improved, but the image quality may deteriorate
Solution Approach 1:
The patent performs distortion correction for each primary color before down-sampling on the image generation apparatus. By applying this complex processing in advance while the image is still at full resolution, the patent ensures high image quality is achieved before compression, and then transmits the processed image at reduced resolution, thereby maintaining both transmission efficiency and image quality.
Data Source
AI summary
A state information acquisition section of an image generation apparatus acquires state information of the head of a user. An image generation section generates a display image corresponding to a visual field. A down-sampling section down-samples image data and transmits the down-sampled image data from a transmission section. A distortion correction section of a head-mounted display performs, after an up-sampling section up samples the data, correction according to aberration of the eyepiece, for each primary color and causes the resulting data to be displayed on a display section.