液晶顯示器動態視訊模糊之改進

LCD Motion Blur Reduction

謝宜璋(Yi-Zang Shieh)

指導教授 ： 貝蘇章

國立臺灣大學/電機資訊學院/電信工程學研究所/碩士(2008年)

https://doi.org/10.6342/NTU.2008.00627

摘要

動態模糊(Motion blur)問題是液晶顯示器常為人垢病的一項缺陷。其原因可以大略分為液晶分子反應速度過慢，以及液晶顯示器的驅動方式限制這兩個來源。前者主要依賴材料科技的進步解決，近年來過驅(Overdrive)技術的發明也大大減低了液晶分子的反應時間。本文針對後者進行問題分析，並介紹數種減低動態模糊的解決方案，包括插黑畫面(Black Frame Insertion)、插柔畫面(Smooth Frame Insertion)、畫面速率提升(Frame Rate Up-conversion)、動態補償反濾波(Motion Compensated Inverse Filtering)等。由我們的模擬分析結果而論，這些方法的確可以減低液晶顯示器的動態模糊問題。

關鍵字

動態模糊 ； 液晶顯示器 ； 影像處理視訊處理

並列摘要

Motion blur is a typical problem of the Liquid Crystal Display. It is mainly resulted from the slow response of liquid crystal and the hold-type driving property of LCD. The response time problem has to be solved by the advancement of material technology and the overdriving technology. In this article, we focus on the hold-type driving property, introduce some motion blur reduction methods, including Black Frame Insertion, Smooth Frame Insertion, Frame Rate Up-conversion, and Motion Compensated Inverse Filtering. Our experimental results show that these methods exactly reduce the motion blur problem of LCD.

並列關鍵字

Motion blur ； Liquid Crystal Display ； Image processing ； Video Processing

參考文獻

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