Stereoscopic Display Using Eye Pupil Tracking for Glasses-Free 3D
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Solution Overview
Problem
Conventional stereoscopic display systems require user-attachable devices for positional feedback, which can be cumbersome for users preferring a device-free experience.
Innovation Solution
The system determines and tracks the eye pupils or head position of the viewer to generate sequential images that correspond to positional changes, providing stereoscopic viewing without the need for special glasses or virtual reality helmets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If user-attachable devices (special glasses or virtual reality helmets) are used to provide positional feedback for stereoscopic viewing, then stereoscopic image display accuracy is improved, but user convenience and ease of operation deteriorate due to the encumbrance of wearing additional devices
Solution Approach 1:
The patent extracts the tracking function from user-attachable devices and relocates it to the display system itself. The display system uses cameras and processors to track the viewer's head position and eye pupil locations directly, eliminating the need for special glasses or virtual reality helmets while maintaining accurate positional feedback for stereoscopic image display
Solution Approach 2:
The display system performs self-tracking by using its own cameras and processors to monitor the viewer's position and eye movements. The system automatically adjusts the stereoscopic image display based on the tracked positional information without requiring any active participation or attachment by the user
2Ease of operation
If eye pupil location and head position tracking is implemented to enable device-free stereoscopic viewing, then user convenience is improved, but device complexity increases due to the need for additional tracking components
Solution Approach 1:
The display system performs multiple functions using the same hardware components. The cameras and processors used for displaying the stereoscopic image also track the viewer's head position and eye pupil locations, eliminating the need for separate tracking devices and reducing overall system complexity
Solution Approach 2:
The patent merges the tracking functionality with the display system by integrating cameras and processors that simultaneously handle both image display and positional tracking. This combination reduces the number of separate components needed and simplifies the overall system architecture
Data Source
AI summary
Stereoscopic image display is described. In an embodiment, a location of the eye pupils of a viewer is determined and tracked. An image is displayed within a first focus for viewing with the left eye of the viewer, and the image is displayed within a second focus for viewing with the right eye of the viewer. A positional change of the eye pupils is tracked and a sequential image that corresponds to the positional change of the eye pupils is generated for stereoscopic viewing. In another embodiment, an image is displayed for stereoscopic viewing and a head position of a viewer relative to a center of the displayed image is determined. A positional change of the viewer's head is tracked, and a sequential image that corresponds to the positional change of the viewer's head is generated for stereoscopic viewing.