Results 1 to 10 of about 16,091 (269)
Injectivity and Stability for a Generic Class of Generalized Radon Transforms. [PDF]
Let (M, g) be an analytic, compact, Riemannian manifold with boundary, of dimension n ≥ 2 . We study a class of generalized Radon transforms, integrating over a family of hypersurfaces embedded in M, satisfying the Bolker condition (in: Quinto ...
Homan A, Zhou H.
europepmc +3 more sources
Inversion Formulas for the Spherical Radon-Dunkl Transform [PDF]
The spherical Radon-Dunkl transform R_κ, associated to weight functions invariant under a finite reflection group, is introduced, and some elementary properties are obtained in terms of h-harmonics.
Zhongkai Li, Futao Song
doaj +7 more sources
Null Spaces of Radon Transforms [PDF]
We obtain new descriptions of the null spaces of several projectively equivalent transforms in integral geometry. The paper deals with the hyperplane Radon transform, the totally geodesic transforms on the sphere and the hyperbolic space, the spherical ...
Estrada, Ricardo, Rubin, Boris
core +3 more sources
On Radon transforms on tori [PDF]
We show injectivity of the X-ray transform and the $d$-plane Radon transform for distributions on the $n$-torus, lowering the regularity assumption in the recent work by Abouelaz and Rouvi\`ere.
Ilmavirta, Joonas
core +6 more sources
Laser Deflection Acoustic Field Quantification: A Non-Invasive Measurement Technique for Focused Ultrasound Field Characterization [PDF]
Focused ultrasound (FU) technology is extensively employed in clinical applications such as tumor ablation, Parkinson’s disease treatment, and neuropathic pain management.
Yang Xu +11 more
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tomoCAM: fast model-based iterative reconstruction via GPU acceleration and non-uniform fast Fourier transforms [PDF]
X-ray-based computed tomography is a well established technique for determining the three-dimensional structure of an object from its two-dimensional projections.
Dinesh Kumar +2 more
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Integrating non-linear radon transformation for diabetic retinopathy grading [PDF]
Diabetic retinopathy is a serious ocular complication that poses a significant threat to patients’ vision and overall health. Early detection and accurate grading are essential to prevent vision loss.
Farida Mohsen +2 more
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Quantum Radon Transforms and Their Applications
This article extends the Radon transform, a classical image-processing tool for fast tomography and denoising, to the quantum computing platform. A new kind of periodic discrete Radon transform (PDRT), called the quantum periodic discrete Radon transform
Guangsheng Ma, Hongbo Li, Jiman Zhao
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Central and Periodic Multi-Scale Discrete Radon Transforms
The multi-scale discrete Radon transform (DRT) calculates, with linearithmic complexity, the summation of pixels, through a set of discrete lines, covering all possible slopes and intercepts in an image, exclusively with integer arithmetic operations. An
Óscar Gómez-Cárdenes +3 more
doaj +1 more source
Dispersive Radon transform [PDF]
Dispersion results in the spreading and overlapping of the wave-packets, which often limits the capability of signal interpretation; on the other hand, such a phenomenon can also be used for structure or media evaluation. In this study, the authors propose an original dispersive Radon transform (DRT), which is formulated as integration transform along ...
Xu, Kailiang +2 more
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