Stereo Camera Offsets for View-Dependent Lighting Artifact Reduction
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Solution Overview
Problem
Current computer graphics methods for lighting calculations in 3D stereography often result in undesirable artifacts such as ghosting effects or misaligned specular reflections, which can make images appear incorrect or distorted, particularly due to view-dependent lighting components like reflections and refractions.
Innovation Solution
The method involves detecting artifacts caused by view-dependent lighting components using stereo cameras and adjusting operating parameters, such as intraocular distance and convergence, to resolve these issues by creating a consistent image for both eyes, either through user input or automated processes, ensuring accurate perceived depth and shape alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If view-dependent lighting components use the same stereo camera offsets as view-independent components, then the rendering process is simple and consistent, but artifacts such as ghosting effects and misaligned specular reflections occur
Solution Approach 1:
The patent segments the lighting components into view-dependent and view-independent categories, applying different stereo camera offsets to each. This segmentation allows the system to handle artifacts specifically for view-dependent components while maintaining simplicity for view-independent components, thereby improving image accuracy without uniformly increasing complexity across all rendering operations.
Solution Approach 2:
The patent applies local quality by using different stereo camera offsets specifically for view-dependent lighting components where artifacts occur, rather than changing the offsets for all components. This targeted approach improves image accuracy in problematic areas while maintaining the original simple rendering process for components that do not exhibit artifacts.
2Manufacturing precision
If stereo camera offsets are adjusted to correct artifacts in view-dependent components, then image quality improves, but the rendering process becomes more complex
Solution Approach 1:
The patent changes the stereo camera offsets parameter specifically for view-dependent lighting components to correct artifacts. By modifying only the relevant parameter for affected components rather than all components, the system achieves proper specular reflection alignment while limiting the increase in overall rendering process complexity.
3Reliability
If separate stereo camera offsets are used for view-dependent and view-independent components, then artifacts are reduced, but processing time increases
Solution Approach 1:
The patent segments lighting components into view-dependent and view-independent categories, applying artifact reduction only to the necessary view-dependent components. This selective approach reduces artifacts effectively while avoiding the need to process all components with complex offset adjustments, thereby minimizing additional processing time.
Data Source
AI summary
Systems and methods are provided for resolving artifacts in view-dependent components. The system and method apply a different stereo camera pair to view-dependent versus non-view-dependent or independent rays. In this way the lighting components may be independently dialed to art direct specular components versus diffuse components.