Image Rendering Virtual Object Lighting Consistency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image rendering technologies face challenges in achieving consistent lighting variations across different locations in an image, leading to inconsistent shadow effects and low fidelity of virtual objects inserted into images.
Innovation Solution
The method combines local lighting information from Spherical Gaussian distribution and global lighting information from High Dynamic Range (HDR) to project and render virtual objects, ensuring consistency over a wide range while maintaining obvious lighting variations at different locations, using techniques like Gamma correction and weighted averaging to generate joint lighting information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If only global lighting information is used for rendering virtual objects, then lighting consistency over wide range is improved, but lighting variations at different locations become insufficient
Solution Approach 1:
The patent combines global lighting information (providing wide-range consistency) with local lighting information (providing location-specific variations) through a merging process. The global lighting ensures consistent illumination across the entire image, while local lighting adds nuanced variations at different positions, resolving the contradiction between consistency and variation.
Solution Approach 2:
The patent applies local quality by determining location-specific lighting information for different regions of the image. Each position receives customized lighting parameters based on its local characteristics, while still maintaining overall consistency through the global lighting framework. This allows different parts of the image to have appropriate lighting variations.
2Illumination intensity
If only local lighting information is used for rendering virtual objects, then lighting variations at different locations are improved, but lighting consistency over wide range deteriorates
Solution Approach 1:
The patent merges local lighting information (with high variation) and global lighting information (with high consistency) in a balanced manner. The combination process ensures that local variations enhance realism without compromising the overall lighting consistency maintained by global illumination data.
3Adaptability or versatility
If virtual objects are inserted into images without proper lighting integration, then insertion flexibility is improved, but rendering fidelity deteriorates
Solution Approach 1:
The patent dynamically adjusts lighting parameters (intensity, direction, color temperature) based on the virtual object's position and the surrounding environment. By changing these parameters according to location-specific and global lighting conditions, the system maintains high rendering fidelity while allowing flexible insertion of virtual objects into various images.
Data Source
AI summary
Provided are image rendering methods and one or more apparatus, electronic devices, and storage media. One of the methods includes determining an image to be rendered, wherein a virtual object is newly added to the image to be rendered; determining local lighting information and global lighting information corresponding to the image to be rendered; and projecting and rendering the virtual object in the image to be rendered by combining the local lighting information with the global lighting information.