3D Display Stereo Mapping for Viewer-Tracked Artifact Reduction
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Solution Overview
Problem
Existing 3D displays suffer from artifacts due to differing views directed to the viewer's eyes, necessitating improvements to reduce or eliminate these issues.
Innovation Solution
A 3D display system utilizing a display panel with subpixels that apply stereo mapping coordinates, a periodic optical element with a slant angle, and a viewer tracker to determine and direct light to the correct eye, incorporating a controller to manage image representation based on viewer location and optical element properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multiview display directs different views to the two eyes of a viewer, then a 3D viewing experience is achieved, but artifacts are generated due to the differing views
Solution Approach 1:
The system dynamically adjusts the stereo mapping coordinates of subpixels based on the real-time location of the viewer. The controller modifies which image portions are displayed on which subpixels according to the viewer's position, enabling the display to adapt to different viewing angles and eliminate artifacts that occur with fixed multiview configurations.
Solution Approach 2:
The system changes the mapping parameters between subpixels and image portions based on viewer location. By adjusting the stereo mapping coordinates dynamically, the system optimizes the correspondence between displayed image portions and the viewer's eye positions, thereby reducing artifacts while maintaining 3D viewing quality.
2Object-generated harmful factors
If stereo mapping coordinates are used to direct light to the correct eye, then artifacts are reduced, but the system complexity increases due to viewer tracking and dynamic coordinate calculation
Solution Approach 1:
The system incorporates a viewer tracker that continuously monitors the viewer's location and feeds this information back to the controller. The controller then adjusts the stereo mapping coordinates in real-time based on this feedback, creating a closed-loop system that automatically optimizes image display without requiring manual intervention or complex mechanical adjustments.
Solution Approach 2:
The system replaces complex mechanical adjustment mechanisms with computational methods. Instead of physically moving optical elements or adjusting hardware configurations, the system uses software-based stereo mapping coordinate calculations driven by viewer location data, simplifying the overall system while achieving artifact reduction.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reduces artifacts by accurately directing light to the appropriate eye, enhancing the 3D viewing experience.
Implementation Method 1
a refractive index of a material disposed between the periodic optical element and the display panel
Data Source
AI summary
In a three-dimensional (3D) display, a display panel having an array of subpixels may display an image according to stereo mapping coordinates associated with a viewer. A periodic optical element may direct light from the display panel to the viewer. The periodic optical element may be invariant along an optical axis having a slant angle relative to the display panel. A viewer tracker may determine a location of the viewer. The stereo mapping coordinate of a selected subpixel of the array of subpixels may be a function of the location of the viewer, a location of the selected subpixel, a phase function of the periodic optical element, a separation between the periodic optical element and the display panel, and a refractive index of a material disposed between the periodic optical element and the display panel.