کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
734084 893389 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An image reconstruction method based on the double-random phase encoding system in the Fresnel domain
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
An image reconstruction method based on the double-random phase encoding system in the Fresnel domain
چکیده انگلیسی

A method used to reconstruct the image from the frequency spectrum intensity of an encrypted image is proposed in this paper. The encrypted image is obtained by utilizing the double-random phase encoding technology in the Fresnel domain on a symmetrical original image. The frequency spectrum intensity of an encrypted image is received by a CCD, and transformed to a computer. With the help of an algorithm, involving autocorrelation and complex-convolution in the discrete Fresnel transform, a reconstructed image that is the same as the original image could be obtained. Numerical simulation shows that our method is only effective for a symmetrical original image. Discussion on the influence of the deviation of pixel value in the position of symmetry has also been provided in this paper.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 41, Issue 4, June 2009, Pages 449–453
نویسندگان
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