Stereoscopic Video Editing via Mapping Functions
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Solution Overview
Problem
Current methods for stereoscopic video editing are inefficient and costly, requiring re-filming or re-rendering for different platforms, and often result in uncomfortable viewing experiences due to parallax errors and the inability to modify stereoscopic properties without perfect depth information.
Innovation Solution
A method and system for stereoscopically modifying video frames by applying mapping functions, such as non-linear warp functions, to alter stereo images based on disparity mapping operators, allowing for efficient modification of stereoscopic properties like interocular distance and local depth composition without requiring accurate depth maps or camera recalibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If stereoscopic video is edited using traditional methods (re-filming or re-rendering), then the stereoscopic properties can be modified, but the production cost and time increase significantly
Solution Approach 1:
The patent creates a virtual copy of the original camera view through computational methods. By analyzing the stereo video frames and generating a virtual camera view that replicates the desired stereoscopic properties, the system avoids the need for re-filming or re-rendering while achieving the same visual effect. This copying approach significantly reduces production time and cost.
Solution Approach 2:
The patent replaces the mechanical process of re-filming or re-rendering with a computational image processing system. Instead of physically moving cameras or重新渲染 scenes, the system uses algorithms to directly manipulate the existing video frames and generate the desired stereoscopic output, substituting mechanical production methods with digital processing.
2Ease of manufacture
If stereoscopic properties are modified without accurate depth information, then production costs are reduced, but parallax errors occur resulting in uncomfortable viewing experiences
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously analyzes the generated virtual camera view and adjusts the stereoscopic properties to maintain proper parallax relationships. By monitoring the output for parallax errors and automatically correcting them, the system ensures viewing comfort without requiring expensive external depth sensing equipment.
Solution Approach 2:
The system performs self-correction of parallax errors by using the video content itself as the source of depth information. Rather than relying on external depth maps or sensors, the algorithm extracts depth cues directly from the stereo video frames and uses this information to automatically adjust the stereoscopic properties, making the system self-sufficient and cost-effective.
3Productivity
If mapping functions are applied to alter stereo images, then stereoscopic properties can be efficiently modified, but the complexity of the processing system increases
Solution Approach 1:
The patent designs a universal processing framework that handles multiple stereoscopic editing operations through a single integrated system. The virtual camera view generation mechanism can apply various mapping functions and adjust different stereoscopic properties (interocular distance, convergence, depth scaling) using the same core algorithm, eliminating the need for separate processing systems for each editing operation.
Solution Approach 2:
The patent achieves efficient stereoscopic modification by changing parameters within the mapping functions rather than fundamentally altering the processing architecture. By adjusting parameters such as interocular distance, convergence angle, and depth scaling factors in the virtual camera model, the system can produce different stereoscopic effects using the same underlying processing framework, maintaining simplicity while enabling versatile editing.
Data Source
AI summary
Systems, methods and articles of manufacture are disclosed for stereoscopically editing video content. In one embodiment, image pairs of a sequence may be stereoscopically modified by altering at least one image of the image pair. The at least one image may be altered using at least one mapping function. The at least one image may also be altered based on a saliency of the image pair. The at least one image may also be altered based on disparities between the image pair. Advantageously, stereoscopic properties of video content may be edited more conveniently and efficiently.