Band limited data reconstruction in modulated polarimeters
نویسندگان
چکیده
منابع مشابه
Tomographic Reconstruction of Band-limited Hermite Expansions.
In this work, we investigate the parallel-beam projection and reconstruction of band-limited Hermite expansions. Using a recently developed coordinate conversion technique, we show how the Fourier slice theorem can be directly applied. In our new approach, we do not introduce a non-integrable filter that appears in the filtered backprojection method. Since a projection of a 2D band-limited Herm...
متن کاملA Reconstruction Formula for Band Limited Functions in L2(r)
It is shown that a band limited function from L2(R) can be reconstructed from irregularly sampled values as a limit of spline functions. The assumption about the sampling sequence is that it should be dense enough. It is known that band limited functions, i.e. functions whose Fourier transform have compact support, are uniquely determined and can be recovered from their values on specific discr...
متن کاملTomographic reconstruction from limited data
Introduction At present, image reconstruction in micro-CT imaging is typically performed using the FDK algorithm. This algorithm, which is similar to the Filtered Backprojection algorithm for singleslice tomography, is capable of computing accurate reconstructions in a relatively short time, provided that the acquired dataset satisfies certain requirements: (i) a large number of projection imag...
متن کامل2M-Band Interleaved DFT Modulated Filter Banks with Perfect Reconstruction
In this paper, we propose a new family of perfect reconstruction (PR) complex filter banks, named interleaved discrete Fourier transform modulated filter banks (Interleaved DFT-FBs). In the filter banks, the analysis filters are generated by interlaced exponential modulating two different analysis prototype filters, and the synthesis filters are generated by two different synthesis prototype fi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2011
ISSN: 1094-4087
DOI: 10.1364/oe.19.014976