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| 基于局部均值和标准差的LCD动态背光调整 | |
| 引用本文： | 章小兵,王茹,董戴,韩江洪,吴华夏.基于局部均值和标准差的LCD动态背光调整[J].液晶与显示,2011,26(5):698-701. |
| 作者姓名： | 章小兵 王茹 董戴 韩江洪 吴华夏 |
| 作者单位： | 1. 安徽华东光电技术研究所国家特种显示工程实验室,现代显示国家重点实验室培育基地,安徽,芜湖,241002;合肥工业大学计算机学院,安徽,合肥,230009;安徽工业大学电气信息学院,安徽,马鞍山,243000 2. 安徽工业大学电气信息学院,安徽,马鞍山,243000 3. 安徽华东光电技术研究所国家特种显示工程实验室,现代显示国家重点实验室培育基地,安徽,芜湖,241002 4. 合肥工业大学计算机学院,安徽,合肥,230009 |
| 摘 要： | 为了在降低液晶显示器背光功耗的同时能够保持图像质量,提出了基于局部均值和标准差的LCD背光调制算法。该算法能有效降低低对比度和较暗区域的背光亮度,提高图像的对比度,并保证高对比度和较亮区域的图像质量。对背光信号进行了保值平滑处理,使每个区域与周围区域之间能够平滑过渡,整幅图像视觉上更加柔和。 |
| 关 键 词： | 液晶显示器 动态背光 局部均值 局部对比度 |
Dynamic Backlight Adaptation Based on Local Mean and Standard Deviation for LCD |
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| ZHANG Xiao-bing,WANG Ru,DONG Dai,HAN Jiang-hong,WU Hua-xia.Dynamic Backlight Adaptation Based on Local Mean and Standard Deviation for LCD[J].Chinese Journal of Liquid Crystals and Displays,2011,26(5):698-701. | |
| Authors: | ZHANG Xiao-bing WANG Ru DONG Dai HAN Jiang-hong WU Hua-xia |
| Institution: | ZHANG Xiao-bing1,2,3,WANG Ru3,DONG Dai1,HAN Jiang-hong2,WU Hua-xia1(1.National Engineering Laboratory of Special Display,Cultivation Base of National Key Laboratory of Modern Display,Wuhu 241002,China,2.School of Computery Science,Hefei University of Technology,Hefei 230009,3.School of Electrical Engineering and Information,Anhui University of Technology,Ma Anshan 243000,China) |
| Abstract: | In order to cut down the power consumption of LCD backlight and maintain the image quality,a modulation algorithm based on Local Mean(LM) and Local Standard Deviation(LSD) is proposed.The algorithm can dim the luminance of backlight effectively in dark and low contrast blocks and maintain the image quality in the bright and high contrast blocks.Meanwhile,backlight signals are smoothed to ensure smooth transition between each region and its surrounding regions,which makes images downy on the vision. |
| Keywords: | LCD dynamic backlight local mean local contrast |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |