3D Display Eye Tracking for Reduced Eyestrain
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional 3D display systems face issues with misalignment, eyestrain, and high computational costs, particularly in creating a precise 3D virtual environment that requires precise input on user head and eye positions for accurate stereo offset and depth perception.
Innovation Solution
A system comprising eye cameras to track eye reference points, a processor to calculate a focal point, and displays to generate 3D image data, which reduces eyestrain and computational requirements by aligning images precisely and optimizing image resolution based on user focus points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional 3D display systems use precise head and eye position tracking for accurate stereo offset, then depth perception accuracy is improved, but computational costs and device complexity increase
Solution Approach 1:
The system uses the user's own eye movement and focus information to automatically adjust the 3D image rendering, eliminating the need for complex external tracking devices and computational overhead. The eyes themselves provide the tracking data through natural focusing behavior.
Solution Approach 2:
The patent replaces mechanical head and eye tracking systems with an optical-based focus detection method. Instead of using cameras or sensors to mechanically track eye position, the system optically detects where the user is focusing to determine the point of interest and adjust stereo offset accordingly.
2Adaptability or versatility
If conventional systems continuously adjust stereo offset for head movement, then 3D virtual environment immersion is improved, but misalignment and eyestrain increase
Solution Approach 1:
The system pre-calculates and prepares multiple stereo offset configurations based on anticipated eye focus positions. By having these configurations ready in advance, the system can quickly switch between them without continuous adjustment, reducing misalignment artifacts that cause eyestrain.
Solution Approach 2:
Instead of continuously adjusting stereo offset for every head movement, the system applies adjustments only when eye focus indicates a change in point of interest. This partial action approach maintains immersion while avoiding excessive adjustments that create misalignment and eyestrain.
3Manufacturing precision
If conventional 3D systems use high computational power for precise stereo offset calculation, then image alignment accuracy is improved, but hardware costs increase
Solution Approach 1:
The patent employs simpler, lower-cost computational methods that calculate stereo offset based on eye focus position rather than complex continuous head tracking. This approach achieves sufficient image alignment accuracy using more affordable hardware components.
Solution Approach 2:
The system changes the parameter used for stereo offset calculation from complex head position coordinates to simpler eye focus distance and position data. This parameter change reduces computational requirements while maintaining adequate alignment accuracy for the 3D display.
Data Source
AI summary
Disclosed is a system for a 3-dimensional display that includes at least one eyepiece having first and second eyepiece sockets, having a first display contained in said first eyepiece socket associated with a first eye, two eye cameras mounted such that a first eye camera tracks eye reference points of said first eye and a second eye camera tracks reference points of a second eye, a processor for providing overall control of said at least one eyepiece; a second display; and a main processor; signals are transmitted between said main processor and said at least one eyepiece, wherein said two eye cameras track said reference points, said eyepiece transceiver transmits said reference points to said main processor via said main transceiver, said main processor generates image data based on said reference points and transmits said image data to said displays to produce a 3-dimensional image.