Image Processing System for Ambient Light Adaptation
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Solution Overview
Problem
Conventional LCD TVs primarily adjust brightness and contrast based on ambient light but fail to consider human ergonomic factors, resulting in suboptimal image quality under varying lighting conditions.
Innovation Solution
An image processing and controlling system that detects ambient lighting characteristics, processes initial image signals with a human-factor unit to adjust image characteristics, and coordinates with the ambient light system to provide optimal viewing conditions, using a lighting mode module, image processor, and display unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LCD TVs adjust brightness and contrast based on ambient light, then the display visibility is improved, but the image quality and viewing comfort under varying lighting conditions deteriorates due to lack of human ergonomic consideration
Solution Approach 1:
The system dynamically adjusts multiple image parameters including brightness, contrast, saturation, and hue based on ambient lighting conditions and human ergonomic factors. The human-factor processing unit modifies these parameters in real-time to optimize viewing comfort across different lighting scenarios, transforming the static parameter adjustment into a dynamic, context-aware process.
Solution Approach 2:
The system incorporates a lighting mode module that continuously detects ambient light characteristics and feeds this information back to the image processor. This feedback loop enables the system to adaptively adjust image parameters based on changing environmental conditions, ensuring optimal viewing comfort without requiring manual intervention.
2Measurement precision
If LCD TVs control display brightness according to ambient brightness, then the discernibility of images is improved, but the coordination with ambient lighting system and scenario matching deteriorates due to unidirectional control
Solution Approach 1:
The image processor is designed to perform multiple functions simultaneously: it processes image signals, detects lighting characteristics, adjusts image parameters, and controls ambient lighting. This multi-functional approach enables the system to coordinate between display output and ambient lighting while maintaining scenario appropriateness, rather than performing single-function control.
Solution Approach 2:
The system uses feedback from the lighting mode module to continuously monitor ambient lighting characteristics and adjusts both image parameters and ambient lighting control accordingly. This bidirectional feedback mechanism enables the display to coordinate with the ambient lighting system and match the scenario being displayed, improving overall adaptability.
3Adaptability or versatility
If the system adjusts image characteristics based on ambient light characteristics, then the viewing comfort is improved, but the system complexity increases due to additional processing units
Solution Approach 1:
The patent combines the lighting detection function and image processing function into an integrated system. The lighting mode module and human-factor processing unit work together within a unified architecture, allowing the system to achieve enhanced viewing comfort through coordinated control without requiring completely separate subsystems for each function.
Data Source
AI summary
An image processing and controlling system is provided in the present invention. In addition to adjusting the image displaying modes according to the ergonomic look-up table, the present invention is further capable of adjusting the weighting value with respect to each image characteristic value of an initial image according to lighting characteristics of an ambient light system such that a display unit can provide the most comfortable viewing conditions and the best image quality under different ambient lighting characteristics. In another embodiment, the present invention further functions to control the ambient light system according to the image characteristics of the weighted output image. By means of the foregoing dual controlling ways, the image processing and controlling system may provide appropriate output images corresponding to different viewing scenario and conforming to the requirement of output quality.