An image processor for SXGA/UXGA FPD

AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360) Pub Date : 1999-08-23 DOI:10.1109/APASIC.1999.824076

C. Choi, Hwa-Hyun Cho, J. Chae, Jin-Sung Park, Byong-Heon Kwon, Myung-Ryul Choi

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引用次数: 4

Abstract

We present an image processor for SXGA (super extended graphics array, 1280/spl times/1024)/UXGA (ultra XGA, 1600/spl times/1200) FPD (flat panel display) such as TFT (thin film transistor) LCD (liquid crystal display) and PDP (plasma display panel). The proposed image processor can display the full screen of a FPD with lower or higher resolution of video sources such as NTSC, VGA, SVGA, XGA, SXGA, and UXGA by means of a new interpolation and decimation filters. Also, in order to improve an image quality of a FPD we present some video processing techniques such as /spl gamma/(gamma)-correction, contrast control, and edge enhancement. We have simulated the proposed interpolation and decimation algorithm and compared the results of the proposed algorithms with those of other conventional algorithms quantitatively by calculating PSNR (peak signal noise ratio). We have also simulated the proposed video processing techniques and compared the results by visual test. And we have designed the proposed image processor by VHDL and verified it by functional and timing simulation.

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用于SXGA/UXGA FPD的图像处理器

我们提出了一种用于SXGA(超级扩展图形阵列，1280/spl倍/1024)/UXGA(超XGA, 1600/spl倍/1200)FPD(平板显示器)的图像处理器，如TFT(薄膜晶体管)、LCD(液晶显示器)和PDP(等离子显示器)。该图像处理器通过一种新的插值和抽取滤波器，可以显示NTSC、VGA、SVGA、XGA、SXGA和UXGA等视频源的低分辨率或高分辨率的FPD全屏。此外，为了提高FPD的图像质量，我们提出了一些视频处理技术，如/spl伽马/(伽马)校正，对比度控制和边缘增强。我们对所提出的插值和抽取算法进行了仿真，并通过计算峰值信噪比(PSNR)将所提出算法的结果与其他传统算法的结果进行了定量比较。我们还对所提出的视频处理技术进行了仿真，并通过视觉测试对结果进行了比较。利用VHDL语言设计了该图像处理器，并通过功能仿真和时序仿真对其进行了验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360)

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