| 一种雾天监控视频图像增强处理算法 |
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| 引用本文： | 王殿伟,范九伦,刘颖.一种雾天监控视频图像增强处理算法[J].西安邮电学院学报,2012,17(5):20-24. |
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| 作者姓名： | 王殿伟 范九伦 刘颖 |
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| 作者单位： | 西安邮电大学通信与信息工程学院,陕西西安,710121 |
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| 基金项目： | 陕西省教育厅科学研究计划基金资助项目 |
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| 摘 要： | 针对雾天条件下监控系统视频图像退化严重的问题,提出一种基于YUV色彩空间直接增强的雾天监控视频图像增强处理算法,首先对亮度分量采用多尺度Retinex理论进行增强处理提高对比度,然后对色差分量进行线性拉伸恢复色彩,最后将增强后的亮度分量和色差分量合成处理后的图像。通过对薄雾和浓雾条件下图像的验证表明,本算法可增强图像的对比度,恢复色彩信息,得到比直方图均衡化算法和MSRCR算法更好的去雾效果,而且算法复杂度较低,具有应用于监控系统实时去雾图像处理的能力。
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| 关 键 词： | 去雾 图像增强 监控系统 多尺度Retinex YUV色彩空间 |
A foggy video images enhancement algorithm of monitoring system |
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| WANG Dianwei,FAN Jiulun,LIU Ying.A foggy video images enhancement algorithm of monitoring system[J].Journal of Xi'an Institute of Posts and Telecommunications,2012,17(5):20-24. |
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| Authors: | WANG Dianwei FAN Jiulun LIU Ying |
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| Affiliation: | WANG Tianwei,LIU Yu,WANG Xuanhong(School of Communication and Information Engineering,Xi’an University of Posts and Telecommunications,Xi’an 710121,China) |
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| Abstract: | According to the 802.11b,a high-rate and excellent-efficiency method of symbol synchronization of low rate wireless local area network（W-LAN） is introduced.Firstly,in order to choose the best transmission-waveform,the influence of transmission-waveform on symbol synchronization of wireless local area network is analyzed by using the peak-to-average ratio（PAR）.And by extracting the symbols from the information codes,the rate of symbol synchronization is improved.Based on bit error rate,not only the excellent efficiency of symbol synchronization is verified in low signal-to-noise ratio（SNR） by using the method,but also the rate of symbol synchronization is improved by ten percent.The excellent-efficiency and high-rate design meets the needs of actual project. |
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| Keywords: | defogging image enhancement monitor system multi-scale retinex YUV color space |
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