Video Conference Display Lighting Using UI Brightness Control
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Solution Overview
Problem
Existing video conference platforms face challenges in providing adequate lighting for participants, especially in low-light situations, often requiring external resources or additional hardware that can be inconvenient or unavailable, and the display brightness varies with image content, leading to flickering or unnatural appearances.
Innovation Solution
The system adjusts the brightness levels and colors of both visual items and UI elements in real-time during a video conference to ensure they meet a target brightness criterion, using the client device's display as a light source by adjusting layout, color, and adding additional monitors if needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If external lighting hardware is used to improve lighting quality, then illumination intensity is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The display device performs multiple functions: it displays video content and simultaneously serves as a lighting source for the participant. By adjusting the brightness and color of the display, the system provides illumination without requiring separate lighting hardware, thus resolving the contradiction between improving lighting quality and reducing device complexity
Solution Approach 2:
The system uses the participant's own display device to provide lighting, eliminating the need for external lighting equipment. The display serves itself dual purposes: content delivery and illumination, thereby improving lighting quality while avoiding additional hardware requirements
2Illumination intensity
If display brightness is increased to improve lighting quality, then illumination intensity is improved, but energy consumption increases
Solution Approach 1:
The system dynamically adjusts the display brightness based on real-time assessment of lighting conditions and participant needs. Rather than maintaining constant high brightness, the system optimizes energy consumption by adjusting illumination levels according to actual requirements, thus resolving the contradiction between improving lighting quality and reducing energy consumption
Solution Approach 2:
The system changes display parameters (brightness, color) dynamically to optimize both lighting quality and energy efficiency. By adjusting these parameters based on environmental conditions and participant feedback, the system achieves adequate illumination while minimizing energy consumption
3Loss of information
If display brightness varies with image content, then information display quality is improved, but illumination stability deteriorates
Solution Approach 1:
The system separates the display content from the lighting function by introducing overlay elements with controlled brightness. The video content maintains its original brightness variations for information accuracy, while separate UI elements provide stable illumination, thus resolving the contradiction between information display quality and lighting stability
Solution Approach 2:
The system uses UI elements as an intermediary between the variable video content and the participant's visual perception. These UI elements maintain constant brightness to provide stable lighting, while the video content retains its natural brightness variations for accurate information display
Data Source
AI summary
Systems and methods for providing lighting adjustment in a video conference are provided. A user interface (UI) comprising a plurality of UI elements and a plurality of visual items is provided for presentation on a first client device of a plurality of client devices of a plurality of participants of a video conference, each visual item corresponding to a video stream of one of a plurality of video streams from the plurality of client devices of the plurality of participants of the video conference. A first brightness level for the plurality of visual items and a second brightness level for the plurality of UI elements are determined. In response to determining that the first brightness level for the plurality of visual items and the second brightness level for the plurality of UI elements do not satisfy a target brightness criterion, it is determined that the first brightness level for the plurality of visual items and the second brightness level for the plurality of UI elements do not satisfy a threshold brightness tolerance. An adjustment is performed to each of the first brightness level for the plurality of visual items and the second brightness level for the plurality of UI elements to reach a target brightness level associated with the target brightness criterion.