مشخصات پژوهش

صفحه نخست /Speckle noise reduction by ...
عنوان Speckle noise reduction by division and digital processing of a hologram
نوع پژوهش مقاله چاپ‌شده
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چکیده One of the common problems in classical and digital holography is presence of speckle in reconstructed images. Some methods have been predicted for speckle reduction. Speckle has a statistical distribution in size and intensity. Thus complete elimination of them is impossible. But, one can use this statistical characters to reduce its effects. In this paper a method is proposed for reduction of speckle effect by recording a hologram and then dividing it to several sub-holograms. Each sub-hologram is used to produce an image. Final image is constructed by superposition of these images. The final image has a smaller amount of speckle noise. Experimental results verify effectiveness of this technique.
پژوهشگران ی رستمی (نفر دوم)، محمد ابوالحسنی (بازنشسته) (نفر اول)