Dynamic Lighting Adjustment In Video Communications
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Solution Overview
Problem
Users in video communication sessions face challenges with unflattering video appearances due to lighting issues, such as heavy contrast from bright sunlight or inadequate lighting, which existing systems cannot address granularly without altering skin tones.
Innovation Solution
A system that allows users to adjust their video appearance and lighting in real time using granular control elements like sliders, preserving natural skin tones by segmenting face regions, classifying skin areas, and applying smoothing processes or lighting adjustments based on user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If lighting adjustment is applied to improve video appearance in low lighting conditions, then visibility is improved, but skin tones may be altered unnaturally
Solution Approach 1:
The patent segments the video frame into multiple regions including skin regions and non-skin regions. By identifying and separating skin areas from other areas, the system can apply different processing strategies to preserve natural skin tones while still improving overall video appearance in low lighting conditions.
Solution Approach 2:
The patent applies local quality by treating different regions of the video frame differently. Skin regions are processed with constraints to preserve natural tones, while non-skin regions can undergo more aggressive lighting adjustments. This allows the system to improve visibility without uniformly altering skin tones.
2Adaptability or versatility
If granular control over video appearance adjustment is provided, then user customization is improved, but system complexity increases
Solution Approach 1:
The patent implements dynamic control elements including sliders that allow users to adjust lighting parameters in real-time. The system dynamically responds to user input by applying adjusted lighting effects to the video feed, enabling granular customization without requiring complex manual configuration of multiple independent parameters.
Solution Approach 2:
The patent creates a universal control interface that handles multiple video adjustment functions through a unified slider mechanism. A single control element can adjust various lighting parameters (brightness, contrast, warmth) simultaneously, reducing the number of separate controls needed while maintaining granular user customization capability.
Data Source
AI summary
Low lighting adjustments can be provided within a video communication session. A system generates a lighting adjustment request including a lighting adjustment depth, then segments a region of a video frame into texture sub-regions. The system smoots areas that are adjacent to the texture sub-regions. The system detects an amount of lighting using an artificial intelligence model and modifies the video frame to adjust the amount of lighting. The amount of adjustment of lighting corresponds to the lighting adjustment depth.