Region-Based Tone Mapping GUI for HDR Video Conversion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Video engineers face challenges in processing high dynamic range (HDR) data into lower dynamic range data for different display devices, as there is no straightforward method to determine the best mapping approach for optimal user experience.
Innovation Solution
A graphical user interface is developed that allows for region-based and global tone mapping methods, with tools for adjusting exposure and contrast, and applying filters, enabling users to visualize and fine-tune HDR conversion processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If region-based tone mapping is used to provide localized control over HDR conversion, then adaptability to different display devices is improved, but device complexity increases due to multiple control sections and processing regions
Solution Approach 1:
The display screen is divided into multiple regions (first region and second region) with different tone mapping characteristics. Each region can be independently controlled with its own exposure and contrast parameters, allowing the system to adapt to different display device capabilities while managing complexity through spatial segmentation rather than temporal or hierarchical control structures.
Solution Approach 2:
Different regions of the display screen are assigned different tone mapping qualities and parameters. The first region uses first tone mapping parameters while the second region uses second tone mapping parameters, enabling localized optimization for different display device characteristics without requiring the entire system to be redesigned for each device type.
2Ease of operation
If multiple control sections are provided for fine-tuning tone mapping parameters, then ease of operation is improved, but device complexity increases due to additional control interfaces
Solution Approach 1:
The control interface is segmented into multiple independent control sections, each responsible for specific tone mapping parameters or regions. This allows users to access and adjust only the controls relevant to their needs without being overwhelmed by the entire system, improving ease of operation while the modular structure helps manage overall complexity.
Solution Approach 2:
The graphical user interface acts as an intermediary layer between the user and the complex tone mapping processing system. It provides simplified control mechanisms (sliders, buttons, visual feedback) that mediate between user intentions and the underlying complex processing, making the system easier to operate without exposing the full complexity of the processing pipeline.
3Measurement precision
If real-time visualization of HDR conversion is provided, then measurement precision of tone mapping results is improved, but use of energy increases due to continuous processing and display updates
Solution Approach 1:
The system updates the visualization of tone mapping results periodically or at key processing stages rather than continuously. This allows sufficient precision for user assessment while reducing energy consumption by avoiding constant recalibration and redisplay of intermediate results.
Solution Approach 2:
The system provides automatic visualization of tone mapping results without requiring continuous user intervention or recalibration. Once parameters are set, the system maintains and displays the results autonomously, reducing the energy that would be consumed by repeated processing triggered by user actions.
Data Source
AI summary
A tone mapping graphical user interface (GUI) is provided that allows a video engineer to process a video using a set of tools for changing high dynamic range data into lower dynamic range data. The tone mapping GUI includes a video player region that includes the current video output section for a region-based method of performing HDR conversion, and a current video output section for a reference method that performs HDR conversion using, for example, a global process.