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Method for measuring motion image response characteristic parameters

A technology of moving images and measurement methods, applied in image communication, color TV parts, TV system parts, etc., can solve problems such as large errors in calculation results and complicated calculation processes

Active Publication Date: 2010-11-17
MUDAN SHIYUAN ELECTRONICS BEIJING
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Because there are many parameters to be observed, not only the calculation process is complicated, but also the calculation results have large errors.

Method used

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  • Method for measuring motion image response characteristic parameters
  • Method for measuring motion image response characteristic parameters
  • Method for measuring motion image response characteristic parameters

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Embodiment Construction

[0051] figure 1 Schematic diagram of the smearing phenomenon for moving dark blocks, figure 2 Schematic diagram of smearing phenomenon for a moving bright block, as shown in the figure, the bright block formed by the bright excitation signal and the dark block formed by the dark excitation signal move at a speed V as a moving image. A is the actual front end of the moving picture, B is the actual back end of the moving picture, C is the visual front end of the moving picture, and F is the visual back end of the moving picture. AB is the actual length of the moving image when it moves to the corresponding position. If there is no trailing phenomenon, the actual position of the bright or dark block that should be seen is AB. Due to the smearing effect, the position of the bright or dark block on the display visually seen is CF. AB is called the actual length, CF is the visual length, for bright blocks: AC is the start delay length, CD is the rise blur length, BE is the hold d...

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Abstract

The invention provides a method for measuring motion image response characteristic parameter. The method comprises the following steps of: A, generating a dark stimulus signal and a light stimulus signal to generate a light block and a dark block which have the same movement velocity and serve as a motion image; B, observing alignment conditions of the sight front ends or the sight rear ends of the light block and the dark block in the motion image, entering the step C if the sight front ends or the sight rear ends are not aligned, and entering the step D if the sight front ends or the sight rear ends are aligned; C, regulating the actual position of the light block or the dark block in the motion imagine, and entering the step B; D, determining the relatively-regulated distance between the light block and the dark block in the motion image; and E, calculating response characteristic parameters of the motion image according to the determined relatively-regulated distance. In the method, each motion image response characteristic parameter can be calculated only according to a parameter read by a criterion, so that the method has the advantages of simple calculating process and small error.

Description

technical field [0001] The invention relates to the field of quality detection of display products, in particular to a method for measuring response characteristic parameters of moving images in a display. Background technique [0002] After the image pixels on the display are stimulated, it takes a delay and transition time (that is, response time) to change from the original brightness to the final brightness, so the displayed moving image will appear trailing, blurred edges, color shifting or intermittent phenomenon . To verify the quality of display products, it is necessary to measure the response characteristic parameters that regulate the quality of moving images. Response characteristic parameters generally include motion rise time, motion fall time, and the difference between motion hold and start time. [0003] The Chinese patent application with application number 200610089008.5 discloses a measurement method based on a smear time test card to measure parameters...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00H04N5/14
Inventor 徐康兴武晓光
Owner MUDAN SHIYUAN ELECTRONICS BEIJING
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