Blended Mode 3D Display System Reducing Vergence-Accommodation Conflict
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Solution Overview
Problem
Current VR/AR/MR systems face challenges in minimizing vergence-accommodation conflict, which leads to user discomfort, and are limited by size, portability, battery life, processing power, memory, bandwidth, and component latency, affecting 3D image rendering and display quality.
Innovation Solution
The method involves rendering 3D image data into near and far frames of 2D image data based on depth segmentation, displaying these frames at corresponding depths to minimize vergence-accommodation conflict, and using a blended mode display system that simulates multiple depth planes with linear or non-linear interpolation to reduce system resource demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple depth planes are displayed simultaneously to reduce vergence-accommodation conflict, then user comfort is improved, but system resource consumption increases
Solution Approach 1:
The patent segments the 3D image data into multiple depth planes (near, intermediate, far) and displays them simultaneously at different focal distances. This segmentation allows the system to address vergence-accommodation conflict by providing appropriate depth cues for different regions of the image, improving user comfort while managing system resources through selective rendering
Solution Approach 2:
The patent applies local quality by rendering different portions of the image at different quality levels based on their depth and importance. Critical regions requiring accurate depth perception are rendered with higher fidelity, while less critical regions use lower resource consumption, thereby balancing user comfort with system resource management
2Reliability
If 3D image data is segmented and displayed at multiple depths, then vergence-accommodation conflict is minimized, but processing complexity increases
Solution Approach 1:
The patent divides the 3D image data into distinct depth segments (near, intermediate, far planes) that can be processed and displayed independently. This segmentation simplifies the processing complexity by allowing each depth plane to be handled separately through dedicated rendering pipelines, rather than requiring complex unified processing of the entire 3D scene
Solution Approach 2:
The patent performs preliminary action by pre-segmenting the 3D image data into depth planes during the rendering phase, before display. This preprocessing step organizes the data structure in advance, making subsequent display operations simpler and more efficient, as the depth information is already structured and ready for multi-plane presentation
Data Source
AI summary
A method for displaying a three dimensional (“3D”) image includes rendering a frame of 3D image data. The method also includes analyzing the frame of 3D image data to generate depth data. The method further includes using the depth data to segment the 3D image data into i) at least one near frame of two dimensional (“2D”) image data corresponding to a near depth, and ii) at least one far frame of 2D image data corresponding to a far depth that is farther than the near depth from a point of view. Moreover, the method includes displaying the near and far frames at the near and far depths respectively. The near and far frames are displayed simultaneously.