Screen Brightness and Camera Exposure Adjustment for Collaboration
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Solution Overview
Problem
Video conferencing systems face challenges in adjusting screen brightness and camera exposure, leading to overexposure or underexposure issues for both physically present and remote audiences, affecting the legibility of digital screens and conference room depiction.
Innovation Solution
A method and system that detect the presence of screens in the camera's field of view, determine if exposure or brightness adjustments are needed, and control the camera exposure or screen brightness to ensure optimal legibility for both in-person and remote audiences, using a controller and image processing algorithms to adjust settings dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the brightness of digital screens is increased for physically present audience, then the screen becomes readable for in-person users, but the screen appears overexposed (bright and unreadable) for remote audience through broadcasting cameras
Solution Approach 1:
The system dynamically adjusts screen brightness based on detected camera presence and automatically controls camera exposure settings. This dynamic adaptation allows the screen brightness to be optimized for physically present audience while the camera exposure is simultaneously adjusted to prevent overexposure in remote video feeds, resolving the contradiction between in-person and remote viewing conditions
Solution Approach 2:
The system changes multiple parameters simultaneously - both screen brightness levels and camera exposure settings - to achieve optimal viewing conditions for both audiences. By adjusting these parameters in coordination rather than fixing screen brightness alone, the system resolves the exposure contradiction for different audience types
2Manufacturing precision
If the exposure of broadcasting cameras is adjusted for proper screen visibility to remote audience, then the screen appears readable for remote users, but the screen becomes underexposed (dark and unreadable) for physically present audience
Solution Approach 1:
The system employs dynamic control where camera exposure settings are automatically adjusted based on detected screen presence and brightness levels. This allows the camera to adapt its exposure parameters in real-time to capture proper screen visibility for remote audience without compromising the actual screen brightness that physically present users experience
Solution Approach 2:
The system coordinates changes in camera exposure parameters with screen brightness settings. By simultaneously managing both camera exposure and screen brightness parameters, the system achieves proper screen visibility for remote audience through adjusted camera settings while maintaining appropriate brightness for physically present users
3Manufacturing precision
If screen brightness or camera exposure is adjusted to optimize screen visibility, then one audience group benefits, but the depiction of conference room and physically present audience is negatively impacted
Solution Approach 1:
The system segments the image processing into different zones - screen regions and conference room regions. By applying different exposure and brightness adjustments to these segmented regions, the system can optimize screen legibility while preserving the natural depiction of the conference room and physically present audience, preventing the loss of information in non-screen areas
Data Source
AI summary
The present disclosure provides methods and systems related to automatic adjustment of screen brightness for optimized presentation to both physically present and remote audience during the multimedia collaboration session. In one aspect, a method includes detecting presence of a screen in the field of view of a camera in a meeting room; determining if exposure of the camera or brightness of the screen is to be adjusted, to yield a determination; and controlling at least one of the exposure of the camera or the brightness of the screen based on the determination such that viewing of meeting room and the screen are legible for one or more audience and the screen is legible for one or more audience present in the meeting room.