Virtual Light Source Effect for Real-Time Image Processing
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Solution Overview
Problem
Portable electronic devices face difficulties in applying a realistic additional light source effect in real-time due to the computational intensity of 3D modeling and ray tracing, which is resource-intensive and challenging for devices with limited computational capabilities.
Innovation Solution
An electronic device method that detects objects in a facial area and applies a virtual light source effect based on object attributes, adjusting pixel attributes without requiring 3D modeling, allowing for real-time application of the light source effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 3D modeling and ray tracing are used to apply additional light source effect, then the realism of light source effect is improved, but the computational complexity and processing time increase significantly
Solution Approach 1:
The patent creates a two-dimensional virtual light source map that copies and simplifies the complex three-dimensional lighting calculations. Instead of performing full 3D modeling and ray tracing, the system pre-calculates lighting effects and stores them in a 2D map structure, which can be quickly applied to images without requiring heavy computational resources.
Solution Approach 2:
The patent replaces expensive, computationally intensive 3D modeling operations with a cheaper alternative - a pre-computed 2D virtual light source map. This map serves as a disposable, lightweight representation of complex lighting scenarios that can be rapidly applied without requiring sustained high-performance computation.
2Reliability
If 3D modeling and ray tracing are used to apply additional light source effect, then the quality of light source effect is improved, but the processing time increases making real-time application difficult
Solution Approach 1:
The patent performs lighting calculations in advance and stores the results in a virtual light source map. By pre-computing the lighting effects and storing them in a readily accessible 2D structure, the system eliminates the need for time-consuming real-time 3D rendering, enabling fast application of high-quality lighting effects to images.
3Reliability
If portable electronic devices attempt to provide additional light source effect using traditional methods, then the light source effect can be applied, but the computational resources are insufficient
Solution Approach 1:
The patent creates a two-dimensional virtual light source map that copies and simplifies the complex three-dimensional lighting calculations. Instead of performing full 3D modeling and ray tracing, the system pre-calculates lighting effects and stores them in a 2D map structure, which can be quickly applied to images without requiring heavy computational resources.
Solution Approach 2:
The patent transforms the problem from three-dimensional spatial calculations to two-dimensional image space operations. By changing the dimensional parameters and representing lighting information in a 2D map format, the system reduces computational complexity to levels that portable devices can handle while maintaining visual quality.
Data Source
AI summary
A method for controlling an electronic device is provided. The method includes obtaining an image, detecting at least one object in a facial area from the image, and applying a virtual light source effect to the image based on an attribute of the detected object and displaying the image.