Results 31 to 40 of about 157 (131)
Papers in Palaeontology, Volume 11, Issue 3, May/June 2025.Abstract Fossilized food items found in or passed through the digestive tract of an animal (bromalites) offer a window into the dietary habits and ecological role of the producer taxon. Bromalites have been documented from several small to mid‐sized parvipelvian ichthyosaurian species from the Lower Jurassic, but are seldom documented for the largest ...
Giovanni Serafini +3 more
wiley +1 more source
Face recognition based on ridgelet transforms
Procedia Computer Science, 2010 AbstractThis paper relates to a face recognition and verification technique based on ridgelet transforms. Our proposed method first uses the ridgelet transform of the face image for feature extraction. This involves first applying a sequen- tial combination of radon and wavelet transforms to both the training and test images.
Satyajit N. Kautkar +5 more
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Active Seismic Exploration of Planetary Subsurfaces via Compressive Sensing
Earth and Space Science, Volume 12, Issue 3, March 2025.Abstract Geophysical measurements, such as seismic experiments, are a key target for scientific activities on planetary surfaces. Dense spatial sampling of such measurements is often desirable, and acquisition is traditionally performed at regular intervals.
Jingchuan Wang +16 more
wiley +1 more source
The Ridgelet Transform and Quasiasymptotic Behavior of Distributions [PDF]
, 2015 We characterize the quasiasymptotic behavior of distributions in terms of a Tauberian theorem for ridgelet transforms.
Kostadinova, Sanja +3 more
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A Note on Fractional Gabor Systems in L2(ℝ)
Journal of Function Spaces, Volume 2024, Issue 1, 2024.In this article, fractional Gabor frames in L2(ℝ) are defined and studied. Also, a finite linear combination of fractional Gabor frames for L2(ℝ) is discussed. It is proved that under certain conditions, a finite linear combination of fractional Gabor frames is a fractional Gabor frame for L2(ℝ).
Dolly Jain +3 more
wiley +1 more source
Applied and Computational Harmonic Analysis, 2006 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tan, Shan, Jiao, Licheng
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3-D Discrete Analytical Ridgelet Transform [PDF]
IEEE Transactions on Image Processing, 2006 In this paper, we propose an implementation of the 3-D Ridgelet transform: the 3-D discrete analytical Ridgelet transform (3-D DART). This transform uses the Fourier strategy for the computation of the associated 3-D discrete Radon transform. The innovative step is the definition of a discrete 3-D transform with the discrete analytical geometry theory ...
Helbert, David +2 more
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On the subexponentiality of the ridgelet transform
Comptes Rendus. Mathématique, 2014 We show that we can consider the ridgelet transform for Wiener functionals as a subexponential random variable. We give an application of this result to random walks.
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The finite ridgelet transform for image representation
IEEE Transactions on Image Processing, 2003 The ridgelet transform was introduced as a sparse expansion for functions on continuous spaces that are smooth away from discontinuities along lines. We propose an orthonormal version of the ridgelet transform for discrete and finite-size images. Our construction uses the finite Radon transform (FRAT) as a building block.
Minh N. Do, Martin Vetterli
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The developmental relationship between teeth and dermal odontodes in the most primitive bony fish Lophosteus. [PDF]
Elife, 2020 Chen D +5 more
europepmc +1 more source