Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for correcting color domain in treating video signals of LED display screen

A technology for LED display and video signal processing, applied in color signal processing circuits, static indicators, instruments, etc., can solve the problems of not highlighting the color expression of LED display, reducing the color gamut range of LED display, and difficulty in implementation.

Inactive Publication Date: 2010-10-06
DALIAN MARITIME UNIVERSITY
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both method 1 and method 2 use the existing video source color gamut as the target color gamut, which reduces the color gamut range of the LED display, and does not highlight the color expressiveness of the wide color gamut of the LED display; method 2 requires a large number of transfer matrices, and the algorithm Complex, difficult to implement in practice

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for correcting color domain in treating video signals of LED display screen
  • Method for correcting color domain in treating video signals of LED display screen
  • Method for correcting color domain in treating video signals of LED display screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings. Such as figure 1 As shown, a method for correcting color gamut in LED display video processing, the video processing system of LED display includes color space conversion module A11, XYZ / Yxy normalization module 12, chromaticity coordinate correction module 13 , Yxy / XYZ denormalization module 14, color space conversion module B15 and comparison module 16, specifically include the following steps:

[0034] A. Complete the conversion from the three primary color system of the video source system to the CIE1931XYZ color system through the color space conversion module A11: the input signal R of the color space conversion module A11 P , G P , B P The conversion relationship with output X, Y, Z is as follows:

[0035] X Y Z ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for correcting a color domain in treating the video signals of an LED display screen, in particular to a method for expanding the color domain of a video source signal by using only one transition matrix, in order to overcome the disadvantages that the color domain of an LED display screen is reduced and the algorithm is complicated in the existing method. The method comprises the following steps: completing the mutual conversion of the video source system between a tri-chromatic system and a CIE1931XYZ color order system by a color / space conversion module; acquiring the chromaticity coordinate of the signal in the CIE1931Yxy chromatic diagram by an XYZ / Yxy normalizing module; expanding and correcting the chromaticity coordinate by one transition matrix in the Yxy colorimetric system; acquiring a new XYZ value from the corrected chromaticity coordinate by a Yxy / XYZ denormalizing module; and acquiring the expanded tri-chromatic value by the color / space conversion module. Accordingly, the invention can emphasize the high color expression of the LED display screen and improve the color distortion thereof by the simpler method.

Description

technical field [0001] The invention relates to a LED display screen video signal processing technology, in particular to a method for correcting color gamut in the LED display screen video signal processing. Background technique [0002] The color gamut correction of the full-color display of the LED display is used to complete the color gamut matching between the existing video signal source system and the LED display, and improve the color distortion caused by the difference in the three primary color characteristics of the two. The principle is to convert the three primary color values ​​of each color into new values ​​through a transformation to control the driving current of the LED display to display the required color. There are two existing color gamut correction methods for LED displays: the first method is to obtain the conversion relationship between the three primary color systems of the existing video source system, the three primary color systems of the LED di...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04N9/64G09G3/32
Inventor 王丹王瑜彭周华胡晓静
Owner DALIAN MARITIME UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com