貝蘇章臺灣大學:電信工程學研究所謝宜璋Shieh, Yi-ZangYi-ZangShieh2010-07-012018-07-052010-07-012018-07-052008U0001-1207200812511200http://ntur.lib.ntu.edu.tw//handle/246246/188225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。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.口試委員會審定書 謝 i文摘要 iiiBSTRACT vhapter 1 Introduction 1hapter 2 Spatio-Temporal Frequency Analysis 3.1 Introduction 3.2 Spatial Frequency 4.3 Temporal Frequency 6.4 Spatio-temporal Frequency Analysis 7.5 Modulation Transfer Function 11.6 Summary 14hapter 3 LCD Motion Blur Model 15.1 Introduction 15.2 Video Capturing 16.3 Reconstruction 17.3.1 Impulse-type Driving 18.3.2 Hold-type Driving 18.4 Eye tracking 20.5 Human Visual System 21.6 Summary 26hapter 4 LCD Motion Blur Reduction Approaches 29.1 Introduction 29.2 Reducing Response Time 30.3 Black Frame Insertion 32.4 Frame Rate Up-conversion 38.5 Smooth Frame Insertion 42.6 Motion Compensated Inverse Filtering 49.7 Summary 56hapter 5 Experimental Results 57.1 Introduction 57.2 Results of Perceptual Test 58.3 PSNR Comparison of Simulated Perceived Image 61.4 Simulation of Perceived Image 68.5 Summary 78hapter 6 Conclusion and Future Work 79.1 Conclusion 79.2 Future Work 80EFERENCE 8110318009 bytesapplication/pdfen-US液晶顯示器影像處理視訊處理Motion blurLiquid Crystal DisplayImage processingVideo Processingthesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/188225/1/ntu-97-R95942106-1.pdf