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grey deformity
相关语句
  灰度畸变
     But as the significant difference between the luminescence property of LED and that of CRT,there exists great grey deformity and the outlook is terrible when LED color screen shows TV programms,so the signal must be corrected before driving the LED.
     但由于全彩LED 大屏幕系统的发光特性与CRT的发光特性不同,它的发光亮度与其控制量成线性关系,因此在显示电视画面时会引起严重的灰度畸变,观赏性极差。
短句来源
  相似匹配句对
     On grey function
     灰色函数
短句来源
     grey resampling;
     影象灰度的重采样;
短句来源
     Madelung Deformity
     Madelung氏畸形
短句来源
     and ④ morbid and deformity.
     ④病残者。
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Because of the significant electric- light difference between the recentLED super -scale colour screen and CRT,there exists great grey deformity when the former is used to display moving pictures and TV programs. The brightness is uplifted,and effective grey scales are decreased. So,the outlook is too bad. In this paper the reversal of the γ compensation,as a solution,is proposed. Viewing test shows that the effectiveness of the solution is significant.

由于目前的LED彩色大屏幕系统的发光特性与显像管的发光特性有极大的差别,在显示动画和电视图像时引起严重的灰度畸变,亮度普遍提升,有效农度分级减少,观赏性极差。因此,本文说明了其成因及解决办法,提出了γ反校正技术,实验观看表明效果极其显著。

LED super scale color screen can be used to show TV programs. Since the luminescence character of CRT is nonlinear,a contrary pre distortion called γ correction is given at the source of image to compensate the nonlinearity. But as the significant difference between the luminescence property of LED and that of CRT,there exists great grey deformity and the outlook is terrible when LED color screen shows TV programms,so the signal must be corrected before driving the LED.In addition,considering the...

LED super scale color screen can be used to show TV programs. Since the luminescence character of CRT is nonlinear,a contrary pre distortion called γ correction is given at the source of image to compensate the nonlinearity. But as the significant difference between the luminescence property of LED and that of CRT,there exists great grey deformity and the outlook is terrible when LED color screen shows TV programms,so the signal must be corrected before driving the LED.In addition,considering the relationship between the brightness of poeple's sight feeling and the physical brightness,this paper gives a way of correcting sigal for LED color screen called γ′ correction. Experiment results show the effectiveness of the method is significant.

全彩LED大屏幕可以用来显示电视画面。由于CRT发光特性的非线性,在图像信号源处引入一种称为γ校正的相反预失真来补偿CRT的这种非线性。但由于全彩LED 大屏幕系统的发光特性与CRT的发光特性不同,它的发光亮度与其控制量成线性关系,因此在显示电视画面时会引起严重的灰度畸变,观赏性极差。因此必须在把控制信号送给LED 驱动电路之前对其进行校正,使之适合LED屏的显示。此外,还考虑到人的视觉的明亮度与物理亮度的关系。本文给出了一种对LED大屏幕信号进行校正的方法,即γ′校正,实验结果表明效果极其显著。

 
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