کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1535673 | 1512630 | 2013 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: An adaptive anisotropic magnification algorithm of numerical reconstructed holographic image via a cascaded Fresnel transform An adaptive anisotropic magnification algorithm of numerical reconstructed holographic image via a cascaded Fresnel transform](/preview/png/1535673.png)
An algorithm that allows a direct control of output resolution of a numerical reconstructed holographic image by a cascaded Fresnel transform is presented. The proposed method is mainly expressed with the magnification term in order to eliminate the cumbersome distance tuning for providing a desired resolution. Also, with the benefit of the numerical Fresnel transform separability, the method has a capability to perform an anisotropic magnification for resizing the output resolution in orthogonal direction. The used range of the magnification values has been established with the Nyquist sampling-theorem. Simulated and experimental results are provided to show the effectiveness of the proposed method. Furthermore, it is extremely useful for the superposition or for the comparison of the reconstructed images at multi-scale resolutions.
Journal: Optics Communications - Volume 291, 15 March 2013, Pages 61–69