3D Image Composition With Virtual Camera Scale Alignment
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Solution Overview
Problem
Existing image composition technologies using 3D virtual scenes as backgrounds face challenges in integrating persons and scenes due to disproportionate proportions, leading to a jarring visual impression.
Innovation Solution
An image composition method that adjusts the position of a virtual camera in the 3D virtual scene to align with the real-world camera, using depth estimation and image segmentation to ensure proportional alignment between the person and the scene.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a 3D virtual scene is used as background, then the visual richness and integration with the person is improved, but the proportion alignment between the person and the scene deteriorates
Solution Approach 1:
The patent changes the camera position parameter in the 3D virtual scene to match the depth distance of the real-world camera. By adjusting the virtual camera's position along the depth axis based on the person's distance from the real camera, the system achieves proper proportion alignment between the person and the 3D virtual scene background, resolving the disproportion issue while maintaining visual richness
2Productivity
If the camera position in the 3D virtual scene is not adjusted, then the processing speed is maintained, but the proportion alignment between the person and the scene deteriorates
Solution Approach 1:
The patent performs preliminary action by pre-calculating the ideal camera position in the 3D virtual scene based on the person's depth distance. The system determines the appropriate virtual camera position in advance and applies this transformation, achieving both proper proportion alignment and efficient real-time processing without requiring complex iterative adjustments
Data Source
AI summary
An image composition solution, designed to correct the scale relationship between a person and a 3D virtual scene, is provided. The correction is achieved by adjusting the position of the virtual camera for capturing the person in the virtual world to match the position of the real-world camera. As a result, the disproportionate appearance of the person in the composite image, whether too large or too small, is eliminated, significantly enhancing the coherence and naturalness of the image.