Stereoscopic Video Depth Adjustment for Frequent Switching
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Solution Overview
Problem
Conventional methods for stereoscopic video processing fail to provide smooth depth transitions during user operations like fast-forwarding, rewinding, and channel switching in 3D video playback, leading to eye fatigue due to excessive eye movement and load on the optical system.
Innovation Solution
A stereoscopic video processing apparatus that detects user operations and determines the frequency of switch operations, reducing depth differences between 3D videos before and after switching when the frequency exceeds a predetermined threshold, using techniques such as 2D rendering processing or shutter adjustments to minimize eye strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional stereoscopic video processing is used during scene changes, then video playback functionality is maintained, but eye fatigue occurs due to excessive eye movement and optical load
Solution Approach 1:
The patent changes the depth parameter of the stereoscopic video during frequent scene changes. When the switching frequency exceeds a predetermined threshold, the processing unit adjusts the depth parameter to reduce the difference in depth between consecutive videos, thereby reducing eye fatigue while maintaining playback functionality
Solution Approach 2:
The patent performs preliminary detection of switch operations and calculates switching frequency before the actual scene change occurs. When frequent switching is detected, the system proactively adjusts depth parameters in advance to prevent eye fatigue before it occurs
2Object-affected harmful factors
If smooth depth transition is implemented at scene changes, then viewing comfort improves, but the solution does not address frequent switching operations like fast-forwarding and zapping
Solution Approach 1:
The patent implements dynamic depth adjustment based on real-time detection of switching frequency. The system continuously monitors switch operations and dynamically adjusts depth parameters according to the detected frequency, enabling smooth transitions during both single scene changes and frequent switching operations like fast-forwarding and zapping
Solution Approach 2:
The patent uses feedback from the switch operation detection unit to continuously monitor and adjust depth parameters. The frequency determination unit provides feedback about switching frequency, which the processing unit uses to dynamically adjust depth, ensuring viewing comfort during various playback operations
3Loss of information
If 3D video playback is maintained during frequent switching, then video content visibility is preserved, but optical load on the user's eyes increases
Solution Approach 1:
The patent changes the depth parameter of the 3D video during frequent scene changes. When the switching frequency exceeds a predetermined threshold, the processing unit adjusts the depth parameter to reduce the difference in depth between consecutive videos, thereby reducing eye fatigue while maintaining playback functionality
Data Source
AI summary
A stereoscopic video processing apparatus includes: a switch operation detection unit which detects a switch operation, made by a user, that is an operation to select a channel of a three-dimensional (3D) video or an operation for a fast-forward playback, a rewind playback, skipping, or locating a cue point of a 3D video; a frequency determination unit which determines a detection frequency indicating the number of switch operations per unit of time detected by the switch operation detection unit; and a video processing unit which performs processing to reduce a difference in depth between 3D videos before and after switching of the 3D videos when the detection frequency per unit of time determined by the frequency determination unit is higher than or equal to a predetermined frequency.