Stereoscopic Display System Observer Tracking Stability
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Solution Overview
Problem
Autostereoscopic display systems face challenges in maintaining a stable stereoscopic image for observers within a tracking area, particularly when the observer becomes temporarily untrackable or moves outside the area, leading to frequent and unnecessary changes in the displayed image.
Innovation Solution
A control system that detects the observer's position within a predetermined tracking area and displays a stereoscopic image based on the last detected position for a predetermined time if the observer becomes untrackable, and displays a stereoscopic image suitable for a predetermined position in the stereoscopic viewing zone when no observer is detected, reducing unnecessary changes and maintaining a stable image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the display system continuously updates the stereoscopic image based on real-time observer tracking, then the stereoscopic image quality is improved, but the image stability deteriorates when the observer becomes temporarily untrackable
Solution Approach 1:
The system stores the last detected observer position in advance before the observer becomes untrackable. When tracking is lost, the system continues to display the stereoscopic image based on this pre-stored position information for a predetermined time period, avoiding abrupt image changes and maintaining stability during temporary tracking failures.
2Adaptability or versatility
If the display system changes the stereoscopic image when the observer moves outside the tracking area, then the adaptability is improved, but the image stability deteriorates due to frequent unnecessary changes
Solution Approach 1:
The system implements a time-based periodic control strategy where it waits for a predetermined time period before changing the displayed stereoscopic image after the observer moves outside the tracking area. This periodic delay filters out temporary position fluctuations and prevents frequent unnecessary image changes, thereby maintaining image stability while still adapting to sustained observer position changes.
3Stability of the object's composition
If the display system maintains the stereoscopic image for a predetermined time after the observer becomes untrackable, then the image stability is improved, but the loss of time increases
Solution Approach 1:
The system dynamically adjusts the predetermined time period parameter based on the specific situation. When the observer temporarily moves out of the tracking area or becomes briefly untrackable, the system maintains the image for this adjustable time period to ensure stability. The parameter can be optimized to balance between maintaining image stability and minimizing unnecessary time delays, allowing the system to adapt to different tracking loss scenarios.
Data Source
AI summary
A control system is configured to acquire an image captured by an imaging device, and display a stereoscopic image on a display apparatus based on a position of an observer detected in a predetermined tracking area in the acquired image. The tracking area is a part of an area in which an observer is trackable and the tracking area includes a stereoscopic viewing zone in which a stereo image can be recognized from the stereoscopic image. The control system is further configured to display a stereoscopic image for a predetermined time based on a position at which the observer is detected last after the detected observer has become untrackable in the tracking area, and display a stereoscopic image suitable for a predetermined position in the stereoscopic viewing zone in a case where no observer is detected in the tracking area over the predetermined time.