Display Management Tone Mapping for Creative Intent
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Solution Overview
Problem
Video content created for legacy displays may not take advantage of newer displays' capabilities, leading to deviations from the creator's intent, and viewing environments can alter the perceived video content, disrupting the intended appearance.
Innovation Solution
Implementing display management units that perform tone and color mapping, using control signals and metadata to adjust video signals based on ambient conditions and display capabilities, ensuring the video content maintains its intended appearance across different displays and environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If video content is created for legacy displays, then compatibility with older devices is maintained, but the content cannot take advantage of newer displays' capabilities such as wider color gamut, higher brightness, and greater contrast
Solution Approach 1:
The patent implements dynamic tone mapping and gamut mapping that adapt in real-time based on the target display's capabilities. The system adjusts mapping parameters dynamically according to the specific display device being used, allowing the same video content to be optimally displayed across legacy and modern displays while preserving creative intent.
Solution Approach 2:
The system changes key parameters including tone mapping curves, gamut mapping transformations, and brightness/contrast adjustments based on the target display characteristics. By modifying these parameters adaptively, the content maintains its creative appearance whether displayed on legacy or advanced displays.
2Manufacturing precision
If display capabilities are enhanced with wider color gamut and higher brightness, then image quality improves, but the original creative appearance may be distorted
Solution Approach 1:
The patent embeds creative intent metadata and reference white point information in the video signal during production. This preliminary action allows the display system to pre-calculate appropriate tone mapping and gamut mapping transformations that will preserve the creator's intended appearance when the content is displayed on displays with different capabilities.
Solution Approach 2:
The system uses embedded metadata and display capability information as feedback to adjust tone mapping and gamut mapping parameters. This closed-loop approach ensures that the mapping transformations are optimized to preserve creative intent while utilizing the display's enhanced capabilities appropriately.
3Adaptability or versatility
If viewing environment changes such as ambient light conditions, then display adaptability increases, but video content perception becomes inconsistent
Solution Approach 1:
The patent incorporates ambient light sensing and uses the measured ambient conditions as feedback to adjust the video signal's tone mapping and brightness levels. This allows the display to adapt to different viewing environments (dark room, bright room, etc.) while maintaining consistent perception of the creative intent through compensatory adjustments.
Solution Approach 2:
The system dynamically adjusts display parameters including brightness, contrast, and tone mapping based on real-time ambient light measurements. This dynamic adaptation allows the video content to maintain its intended appearance across varying environmental conditions.
Data Source
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AI summary
Apparatus and methods for mapping video signal parameters such as tone and color may be applied at various points in a video generation and delivery pipeline. apparatus may be configured to control mappings based on a range of inputs which may include one or more of: ambient conditions, user inputs, control information, adaptation models. Apparatus and methods may be applied to display video or other images so as to preserve a creative intent embodied in video or other image data.