Tone Mapping Using Viewing Distance and Display Context
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Solution Overview
Problem
Existing tone mapping methods fail to achieve optimal display adaptation effects as they only consider the display luminance range of the screen without accounting for other factors like terminal display device size and user viewing distance.
Innovation Solution
A tone mapping method that considers reference information such as display device size, viewing distance, viewing angle, ambient light luminance, and resolution, along with terminal device information to adjust the tone mapping parameter for improved adaptation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If tone mapping is performed considering only display luminance range, then the processing is simple, but the display adaptation effect is suboptimal
Solution Approach 1:
The patent applies parameter changes by adjusting tone mapping parameters based on multiple environmental and device factors including viewing distance, display device size, ambient light luminance, and terminal display characteristics. This allows the system to optimize display adaptation effect by dynamically changing processing parameters to match different viewing conditions and device capabilities.
2Manufacturing precision
If tone mapping considers multiple factors like device size and viewing distance, then display adaptation effect is improved, but processing complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-obtaining reference information about display device characteristics and viewing conditions before performing tone mapping. This allows the system to prepare appropriate tone mapping parameters in advance based on expected viewing scenarios, reducing the complexity of real-time processing while maintaining high display adaptation quality.
3Reliability
If tone mapping parameters are adjusted for different terminal devices, then visual perception consistency is improved, but calculation complexity increases
Solution Approach 1:
The patent uses parameter changes to adjust tone mapping based on terminal device information such as display screen size, resolution, and viewing distance. By systematically varying these parameters according to device characteristics, the system achieves consistent visual perception across different devices while managing calculation complexity through structured parameter adjustment.
Data Source
AI summary
This application provides a tone mapping method and apparatus. In the method, tone mapping is performed on a to-be-displayed image based on reference information and terminal device information of a corresponding type. The reference information includes at least one of a reference display device size, a reference viewing distance, a reference viewing angle, reference ambient light luminance, or reference display device resolution. The terminal device information includes at least one of a terminal display screen size, a user viewing distance, a user viewing angle, ambient light luminance, or terminal display device resolution. In embodiments of this application, when tone mapping is performed on the image, other information such as the terminal display screen size and the user viewing distance is also considered, to flexibly adapt to different environments and display devices, thereby effectively improving display adaptation effect.