VR Data Transmission via Dual-Resolution Image Sampling
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Solution Overview
Problem
The high transmission bandwidth in virtual reality systems poses a challenge in providing an immersive experience due to the need for high resolution and refresh rates, leading to increased data transmission requirements.
Innovation Solution
A data transmission method that involves image sampling to obtain two images with different resolutions and field angles, where the first image is sampled from a preset area with a higher resolution and the second image from the display area with a lower resolution, both transmitted in a specific order, reducing the overall data amount and bandwidth requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high resolution and high refresh rate are used for VR display, then immersive experience is improved, but transmission bandwidth requirement increases
Solution Approach 1:
The display area is segmented into a preset area (first image) and a display area (second image). The first image is sampled with higher resolution while the second image is sampled with lower resolution, dividing the transmission load into different quality segments that reduce overall bandwidth requirements while maintaining key visual quality
Solution Approach 2:
Different resolution qualities are applied to different regions of the display. The preset area (likely the center or focal region) receives high-resolution sampling with first field angle, while the surrounding display area receives lower-resolution sampling with second field angle, optimizing bandwidth usage based on visual importance
2Measurement precision
If image sampling is performed with high resolution, then image quality is improved, but data transmission amount increases
Solution Approach 1:
Instead of uniformly sampling the entire image at high resolution, the method applies partial high-resolution sampling only to the preset area (first image) while using lower resolution for the remaining display area (second image), achieving acceptable overall quality with reduced data transmission
Solution Approach 2:
The sampling parameters (resolution and field angle) are changed based on the region being sampled. The first image uses preset first resolution and preset first field angle, while the second image uses preset second resolution and preset second field angle, optimizing the balance between quality and data amount
Data Source
AI summary
A data transmission method for a virtual reality system, the data transmission method including: performing, by a first processor, image sampling on an image to be transmitted to obtain a first image; performing, by the first processor, image sampling on the image to be transmitted to obtain a second image; transmitting, by the first processor, the first image and the second image to a virtual reality apparatus; receiving the first image and the second image by the virtual reality apparatus and processing the first image and the second image by the virtual reality apparatus to obtain an image to be displayed; and displaying the image to be displayed by the virtual reality apparatus.