3D Video Parallax Adjustment for Scene Transitions
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Solution Overview
Problem
Viewers experience fatigue and distraction due to misalignment of 3D effects in 3D display devices caused by significant changes in depth information during scene transitions in 3D video content.
Innovation Solution
A method and apparatus for adjusting parallax in 3D video by determining scene transitions and comparing depth information between frames, selectively adjusting depth information to minimize differences and reduce viewer fatigue, using a 3D video parallax adjusting device with scene transition determining, depth information analyzing, and depth information adjusting units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If depth information is significantly changed during scene transitions in 3D video, then scene transition effectiveness is improved, but viewer fatigue and distraction increase due to misalignment of 3D effects
Solution Approach 1:
The patent dynamically adjusts depth information of objects during scene transitions based on detected scene changes. The system modifies depth values adaptively - maintaining original depth within scenes and adjusting depth at scene boundaries to ensure smooth transitions, thereby preventing viewer fatigue while preserving transition effectiveness
Solution Approach 2:
The patent changes the depth parameter of objects selectively during scene transitions. By detecting scene boundaries and adjusting depth information only at transition points rather than throughout entire scenes, the system achieves effective scene transitions while minimizing the harmful effects of excessive depth changes that cause viewer distraction
2Object-affected harmful factors
If binocular parallax is adjusted to minimize depth differences between scenes, then viewer comfort is improved, but scene transition smoothness may be reduced
Solution Approach 1:
The patent applies different depth adjustment strategies to different spatial and temporal regions of the video. Within stable scenes, original depth information is preserved. At scene transition boundaries, depth information is selectively adjusted. This localized approach ensures viewer comfort at transitions while maintaining scene integrity and transition smoothness
Data Source
AI summary
A method and apparatus for adjusting parallax of a three-dimensional (3D) video are provided. The method including receiving an input of a 3D video sequence; determining whether a scene transition occurs between a previous frame and a current frame of the 3D video sequence; if it is determined that the scene transition occurs between the previous frame and the current frame, determining and comparing first depth information of a previous scene which includes the previous frame and second depth information of a current scene which includes the current frame; and, based on a result of the comparing, selectively adjusting depth information of at least one of the frames of the previous scene and the frames of the current scene in consideration of a difference between the first depth information and the second depth information.