中山大学学报自然科学版 ›› 2010, Vol. 49 ›› Issue (2): 17-21.

• 研究论文 • 上一篇    下一篇

基于盲信号处理方法的LCD运动图像去模糊研究

庞志勇,谭洪舟,朱雄泳,陈法灵   

  1. (中山大学电子与通信工程系,广州 广东 510275)
  • 收稿日期:2009-04-09 修回日期:1900-01-01 出版日期:2010-03-25 发布日期:2010-03-25

Study on LCD Motion Blur Reduction Based on Blind Signal Processing

PENG Zhiyong, TAN Honzhou, ZHU Xiongyong, CHEN Faling

  

  1. (Department of Electronics and Communication Engineering, Sun Yatsen University, Guangzhou 510275, China)
  • Received:2009-04-09 Revised:1900-01-01 Online:2010-03-25 Published:2010-03-25

摘要: 运动模糊是LCD在电视应用中的一个主要挑战。提出了一种采用盲信号处理解决LCD运动图像模糊问题的方法。该方法通过MPRT(Motion Picture Response Time)方法得到LCD运动模糊图像。采用倒谱分析方法估计运动矢量,将得到的运动矢量用到已知的LCD运动图像模糊模型中,进而得到盲去卷积的初始点散函数(PSF)。仿真结果表明,通过该盲去卷积的方法使得LCD运动图像得到了很大的改善。

关键词: LCD, 运动模糊, 盲信号处理, 动态画面响应时间, 点散函数, 盲去卷积

Abstract: Motion blur is one of main challenges for using LCDs in television applications. An effective method for reducing the motion blur by blind signal processing was proposed. In this method,the LCD motion blur images are obtained by the MPRT(Motion Picture Response Time), and the motion vectors are estimated using the cepstral method, then the motion vectors are used in a premodel for LCD motion blur image,and finally an initialization point spread function(PSF) of blind deconvolution can be constructed. The simulation results show that the proposed blind deconvolution can significantly reduce the visible blurring artifact on LCD.

Key words: liquid crystal display, motion blur, motion picture response time, point spread function, blind deconvolution

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