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Method of evaluating motion picture display performance, inspection screen and system for evaluating motion picture display performance

A technology for displaying performance and dynamic images, applied in image analysis, image enhancement, image communication, etc., can solve the problem of low reliability of dynamic image display performance

Inactive Publication Date: 2006-11-22
OTSUKA DENSHI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, since a test pattern that is easy to be judged visually is used, it is possible to reasonably judge whether or not the reliability of the video display performance when an actual video is projected is low.

Method used

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  • Method of evaluating motion picture display performance, inspection screen and system for evaluating motion picture display performance
  • Method of evaluating motion picture display performance, inspection screen and system for evaluating motion picture display performance
  • Method of evaluating motion picture display performance, inspection screen and system for evaluating motion picture display performance

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Experimental program
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Embodiment Construction

[0032] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, EBET (Extended Blurred Edge Time) is used as an index value of the moving image display performance of the display to be judged.

[0033] figure 1 It is a figure which shows the inspection screen 1 of the judgment object display.

[0034] In the uppermost stage of the figure, a test character string like "AaBbCc..." is repeatedly scrolled. The white arrow 4 indicates the direction in which the test string is scrolled.

[0035] In the lower part of the figure, there are still 5 sample character strings generated using the character string "AaBbCc..." in the same font and the same size, representing different degrees of blur (Blur Index). The method of generating this sample character string will be described in detail later using FIG. 8 .

[0036] Among the above five stages, the character string “AaBbCc .

[0037] In addition, ...

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Abstract

A test image is scrolled on a screen of a display device subject to evaluation. A plurality of sample images that are created using the same test image and each indicate different motion picture display performance index values are prepared. The plurality of the sample images are displayed as still images in a condition that permits comparison with the scrolling test image. Then, a sample image that most resembles the pursuit captured test image is specified, and a motion picture display performance index value of the specified sample image is determined to be a motion picture display performance index value of the test image.

Description

technical field [0001] The present invention relates to a technique for judging the dynamic image display performance of a judgment-target display based on movement of an image projected on a screen of the judgment-target display. Background technique [0002] Dynamic images are displayed on the screens of various displays such as liquid crystal displays (LCDs), cathode ray tube displays (CRTs), plasma displays (PDPs), and electroluminescent displays (ELs), and motion is determined by measuring the movement of the moving images. Image shows performance. [0003] Conventionally, the method of judging the display performance of a moving image is to scroll a pattern of left and right bisection screens with different gray scales on the screen, make a camera track the movement of the pattern, and capture it as a still image. At the same time, set a small blur monitor such as a CRT next to it, display a test pattern with a predetermined blur in advance at the same scrolling speed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00
CPCG06T7/001G06T2207/10016G06T2207/30108H04N17/04
Inventor 岡宏一
Owner OTSUKA DENSHI CO LTD