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1·But in the raster graphic display system, scale lines and character will be distorted seriously owe to the limited screen resolution in the case of deflection, which affect the display quality.

而硬件系统采用的是光栅图形显示，字符和刻度线的旋转受屏幕分辨率的限制存在着锯齿走样现象，影响显示效果。

2·For eliminating graphic flicker and acquiring TV display of image from VGA to TV video conversion, the mechanisms of graphic flicker and resolution conversion are analyzed.

为消除VGA到TV视频转换中的图像闪烁及获得图像的TV显示，分析了闪烁产生及分辨率变换的机理。

3·Aiming at the high resolution graphic adapter VGA or EGA widely adopted in this country, a new method for compressed coding and decoding display of the images is proposed and realized in this paper.

针对目前国内十分流行的VGA及EGA等高分辩率图形卡，本文提出并实现了一种新的图象压缩编码与解码回显的方法。