RESTORATION OF ATMOSPHERICALLY BLURRED IMAGES ACCORDING TO WEATHER-PREDICTED ATMOSPHERIC MODULATION TRANSFER FUNCTIONS
RESTORATION OF ATMOSPHERICALLY BLURRED IMAGES ACCORDING TO WEATHER-PREDICTED ATMOSPHERIC MODULATION TRANSFER FUNCTIONS
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DOI：
10.1117/1.601526
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发表时间：
1997-11
影响因子：
1.3
通讯作者：
Y. Yitzhaky;I. Dror;N. Kopeika
中科院分区：
文献类型：
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作者：
Y. Yitzhaky;I. Dror;N. Kopeika
实际大气模糊图像的恢复是使用大气维纳滤波器来执行的，该大气维纳滤波器通过主要在受湍流调制传递函数（MTF）中的抖动或随机性影响最小的那些高频处增强图像频谱来同时校正湍流和气溶胶模糊。校正是基于天气预测，而不是测量的大气MTF。湍流和气溶胶的调制传递函数预测使用标准气象站的时间和位置，在图像被记录的气象参数。考虑了各种天气条件和季节。过去的结果表明，测量和预测的大气MTF之间有很好的相关性。在此，将预测的调制传递函数应用于实际图像恢复中，并对调制传递函数的改善进行了定量分析。还示出了针对单独的湍流模糊、针对单独的气溶胶模糊以及针对两者一起的校正。© 1997年摄影光学仪器工程师协会。（S0091-3286（97）01511-0）
Restoration for actual atmospherically blurred images is per- formed using an atmospheric Wiener filter that corrects simultaneously for both turbulence and aerosol blur by enhancing the image spectrum primarily at those high frequencies least affected by the jitter or random- ness in a turbulence modulation transfer function (MTF). The correction is based on weather-predicted rather than measured atmospheric MTFs. Both turbulence and aerosol MTFs are predicted using meteorological parameters measured with standard weather stations at the time and location where the image was recorded. A variety of weather conditions and seasons are considered. Past results have shown good correlation between measured and predicted atmospheric MTFs. Here, the pre- dicted MTFs are implemented in actual image restoration and quantita- tive analysis of the MTF improvement is presented. Corrections are shown also for turbulence blur alone, for aerosol blur alone, and for both together. © 1997 Society of Photo-Optical Instrumentation Engineers. (S0091-3286(97)01511-0)