نتایج جستجو برای: fourier transformation

تعداد نتایج: 278148  

2014
Chi Zhang Jianbing Xu P. C. Chui Kenneth K. Y. Wong

The authors neglected to cite some of the previous studies related to Fourier Transformation in the Introduction section of this Article. These additional references are listed below as references 1–4, and should appear in the text as below. ‘‘This concept was first introduced by Azana et al. for real-time Fourier transformation, where group-velocity dispersion (GVD) directly stretched spectra ...

2004
James Rioux E. Aubanel B. Balcom

A new algorithm has been developed which permits extremely accurate and fast computation of the Discrete Fourier Transform for certain sets of non-uniformly sampled data. Specifically, this algorithm can be used to process the data acquired during a Magnetic Resonance Imaging experiment using the SPRITE technique with Multiple Point Acquisition, which samples data non-uniformly in a spatial fre...

2009

At the end of Section 2.3, we have observed that all correlation functions of the local field theory under consideration are invariant under spatial translations. This invariance has the consequence that Feynman integrals are greatly simplified by Fourier transformation. It is therefore useful to set up rules for composing Feynman integrals directly in momentum space.

Journal: :Proceedings of the Indian Academy of Sciences - Section A 1993

Journal: :Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series 2020

Journal: :Electronics 2021

The active contour model is a comprehensive research technique used for salient object detection. Most models of saliency detection are developed in the context natural scenes, and their role with synthetic medical images not well investigated. Existing perform efficiently many complexities but facing challenges on due to limited time like, precise automatic fitted expensive initialization comp...

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