Stereoscopic Display Control for Parallax Change Mitigation
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Solution Overview
Problem
Existing stereoscopic display technologies cause viewing fatigue due to rapid parallax changes when switching video content, leading to discomfort and loss of stereoscopic vision, especially when content contains moving subjects or lacks depth perception at the beginning.
Innovation Solution
A display control apparatus that detects changes in projection amount and blurs regions with significant parallax changes, gradually deblurring them to mitigate rapid parallax shifts without degrading video quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If stereoscopic video switching is performed with rapid parallax changes, then video content transition is achieved, but viewing fatigue increases and stereoscopic vision is lost
Solution Approach 1:
The system performs preliminary blurring of the stereoscopic image before the actual video switching occurs. By pre-blurring the image data in response to a video switch instruction, the rapid parallax change is softened before it reaches the viewer, preventing the harmful effect of sudden depth perception changes while still enabling video transition.
Solution Approach 2:
The invention applies beforehand cushioning by introducing a blurred intermediate state between two stereoscopic video contents. The blurring acts as a cushion that absorbs the shock of rapid parallax changes, gradually transitioning the viewer's depth perception rather than allowing abrupt changes, thereby reducing viewing fatigue.
2Object-affected harmful factors
If interpolating video with reduced parallax is displayed, then viewing fatigue is reduced, but stereoscopic vision and video quality are degraded
Solution Approach 1:
The system dynamically adjusts the blur amount based on the detected parallax change magnitude. When large parallax changes are detected, stronger blurring is applied to reduce fatigue; when parallax changes are small, less blurring is applied to preserve stereoscopic vision quality. This dynamic adjustment allows the system to optimize both comfort and quality for each specific transition scenario.
Solution Approach 2:
The invention changes the blur parameter (high-frequency component suppression level) in response to detected parallax changes. By adjusting this parameter dynamically based on the actual video content and parallax magnitude, the system maintains stereoscopic vision quality while reducing fatigue-causing rapid transitions.
3Object-affected harmful factors
If video switching is delayed to reduce fatigue, then viewing comfort is improved, but video content playback speed is reduced
Solution Approach 1:
The invention extracts the blur processing step from the video playback timeline. Instead of delaying video switching, the blurring is applied as a separate preprocessing operation that occurs independently of the video content timing. This allows video switching to proceed at normal speed while the blur effect handles the fatigue reduction separately.
Data Source
AI summary
An image processing apparatus according to the present invention that displays a stereoscopic image to a viewer, includes an input unit that inputs image data related to the stereoscopic image, a detection unit that detects a change of a projection amount of the stereoscopic image from the image data input by the input unit, a generation unit that generates the image obtained by suppressing high-frequency components from the stereoscopic image when the change of the projection amount is detected by the detection unit, and a display control unit that displays a video image generated by the generation unit in a display apparatus.