Articles with "projection operators" as a keyword



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Gibbs Phenomenon of Framelet Expansions and Quasi-projection Approximation

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Published in 2019 at "Journal of Fourier Analysis and Applications"

DOI: 10.1007/s00041-019-09687-9

Abstract: The Gibbs phenomenon is widely known for Fourier expansions of periodic functions and refers to the phenomenon that the nth Fourier partial sums overshoot a target function at jump discontinuities in such a way that… read more here.

Keywords: projection operators; quasi projection; framelet; gibbs phenomenon ... See more keywords
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On the Properties of 2 × 2 Oblique Projection Operators

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Published in 2017 at "IEEE Antennas and Wireless Propagation Letters"

DOI: 10.1109/lawp.2016.2599925

Abstract: Interference-to-signal ratio (ISR) after oblique projection is usually codetermined by the estimated signal and interference, and it is usually different from the ISR after orthogonal projection. In this letter, we present two new properties of… read more here.

Keywords: oblique projection; interference; two dimensional; projection ... See more keywords
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Algebraic determination of back-projection operators for optoacoustic tomography.

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Published in 2018 at "Biomedical optics express"

DOI: 10.1364/boe.9.005173

Abstract: The simplicity and computational efficiency of back-projection formulae have made them a popular choice in optoacoustic tomography. Nonetheless, exact back-projection formulae exist for only a small set of tomographic problems. This limitation is overcome by… read more here.

Keywords: operators optoacoustic; back projection; optoacoustic tomography; projection ... See more keywords