光学学报, 1990, 10 (10): 927, 网络出版: 2007-11-12
采用随机振动法抑制白光处理系统中的颗粒噪声
Suppression of film-grain noise in white-light optical processing system with random vibration method
白光处理系统 光栅编码片 振幅型颗粒噪声 white-light optical processing system the grating encoded film the amplitude grain noise
摘要
本文提出在白光信息处理中,可通过使滤波孔在傅里叶面彩虹状衍射谱附近做随机振动的方法,达到抑制光栅编码片的振幅型颗粒噪声.改善其输出信噪比的目的,并给出了相应的实验结果.
Abstract
In a white-light optical processing system, if the filter apertures vibrate randomly around the rainbow diffraction spectra at Fourier plane, the amplitude grain noise of the grating encoded film in the output plane can be suppressed considerably and the output SNR is improved. Experimental results are given in this paper.
周春燕, 方志良, 许欣, 母国光. 采用随机振动法抑制白光处理系统中的颗粒噪声[J]. 光学学报, 1990, 10(10): 927. 周春燕, 方志良, 许欣, 母国光. Suppression of film-grain noise in white-light optical processing system with random vibration method[J]. Acta Optica Sinica, 1990, 10(10): 927.
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