Video Signal Level Display Device for RGB Component Monitoring
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Solution Overview
Problem
Conventional video signal level display devices, such as the diamond display, burden observers with the need to read and interpret complex vector representations to determine if RGB components exceed predetermined values or are in a gamut error state, leading to confusion and a blurred appearance, especially when dealing with natural images.
Innovation Solution
A video signal level display device that sets and calculates maximum and minimum effective values for R, G, and B components, allowing these values to concentrate at a single point for clear visualization, and generates straight scale data to distinguish between components within their effective ranges, enabling direct observation of gamut errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If diamond display with vector representation is used, then RGB component levels can be monitored, but observer burden increases and clarity decreases
Solution Approach 1:
The patent segments the complex vector information into separate, simplified indicators for each RGB component (R, G, B). Instead of displaying a single diamond-shaped vector plot that requires interpretation, the invention divides the information into three distinct measurement values, one for each color component, making it easier for observers to independently assess each component's level without cognitive overload.
Solution Approach 2:
The patent extracts the essential information from the complex vector representation and presents only the critical measurement values. By taking out the maximum effective values for each RGB component and displaying them directly, the invention eliminates the need for observers to interpret vector directions and magnitudes, retaining only the necessary data for gamut error detection.
2Measurement precision
If diamond display with vector representation is used, then RGB component levels can be monitored, but display clarity deteriorates
Solution Approach 1:
The patent applies local quality by providing different display treatments for different RGB components based on their effective values. Each component (R, G, B) is displayed with its own dedicated indicator showing whether it exceeds the maximum effective value, allowing observers to quickly identify which specific component is causing a gamut error without the blurred, cloud-like appearance of conventional diamond displays.
3Ease of operation
If maximum effective values are concentrated at one point, then observer burden is reduced, but coordinate calculation complexity increases
Solution Approach 1:
The patent performs preliminary action by pre-calculating the maximum effective values for each RGB component and determining their coordinates before display. The coordinate calculation unit computes the positions where these maximum values should be displayed, and the display unit then simply renders these pre-calculated positions with appropriate indicators, separating the complex calculation phase from the simple display phase.
Data Source
AI summary
The present invention reduces a burden on an observer. A video signal level display device includes setting sections (24, 25, 26) for setting maximum effective values corresponding to R, G, and B components, respectively, of an RGB component signal, calculating sections (21, 22, 23) for calculating respective coordinates of the R, G, and B components so that the maximum effective values concentrate at one point, generating section (27) for generating straight scale data corresponding to the R, G, and B components, respectively, so that the maximum effective values concentrate at one point, and display section (29) for displaying the respective coordinates of the R, G, and B components and the respective straight scale date (61, 62, 63, 71, 72, 73, 74, 75, 75) on the R, G, and B components.