用於複合訊號色彩亮度分離之二維自適性濾波器

New 2-D Adaptive Filter for Y/C Separation in Composite Signals

林俊宏(Chun-Hung Lin)

指導教授 ： 黃世旭

中原大學/工學院/電子工程研究所/碩士(2006年)

https://doi.org/10.6840/cycu200600659

摘要

隨著數位電視時代的來臨，許多在傳統類比NTSC(National Television System Committee)複合視頻訊號電視系統之數位化是必須的。換句話說，視訊解碼器乃是接收到數位複合視頻訊號。在視訊解碼器中的Y/C分離器之分離效果將嚴重影響輸出影像品質。這篇文章中，我們提出一種新的改善NTSC複合視頻訊號電視系統影像品質的方法。我們的目標是去解決傳統亮度與色彩分離結果下的色彩交錯問題。對於靜態影像應用上，我們的Y/C分離器使用二維自適性梳型濾波器分離技術。實驗結果顯示它可以達成較傳統Y/C分離器來得出色的輸出視訊品質。

關鍵字

Y/C分離器 ； 二維自適性梳型濾波器 ； 視訊解碼器

並列摘要

With the advent of digital television, the digitization of a traditional analog NTSC (National Television System Committee) composite video signal television system is needed. In other words, a video decoder receives digital composite video signals. The separation effect of Y/C Separator in video decoder will affect output image quality seriously. In this paper, we propose a new method to improve the video quality of NTSC composite video signals in television system. Our objective is to solve the cross-chrominance problem caused by conventional luminance (Y) and chrominance (C) Separation effect. Our Y/C separation approach uses 2-D adaptive comb filter separation techniques for static images applications. Simulation results show that it can achieve excellent output video quality than traditional Y/C Separators.

並列關鍵字

2-D Adaptive Comb Filter. ； Video Decoder ； Y/C Separation

參考文獻

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[2] http://www.ntsc-tv.com/ntsc-index-02.htm.

[3] http://www.ntsc-tv.com/ntsc-index-07.htm.

[4] Faroudja, Y.C.; “NTSC and beyond [TV]”, IEEE Trans. On Consumer Electronics, vol. 34,No.1, pp. 166 178, Feb 1988.

[5] Hashimoto, H.; Matsuoka, T.; “Digital Separation and Reconstruction of NTSC Signals”, IEEE Trans. On Communications, vol. 28,No.7, pp. 1085 1088, Jul 1980.