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Recent Progress in Shearlet Theory: Systematic Construction of Shearlet Dilation Groups, Characterization of Wavefront Sets, and New Embeddings [PDF]
, 2017 The class of generalized shearlet dilation groups has recently been developed to allow the unified treatment of various shearlet groups and associated shearlet transforms that had previously been studied on a case-by-case basis. We consider several aspects of these groups: First, their systematic construction from associative algebras, secondly, their ...
ALBERTI, GIOVANNI +4 more
core +6 more sources
Different Faces of the Shearlet Group [PDF]
The Journal of Geometric Analysis, 2015 Recently, shearlet groups have received much attention in connection with shearlet transforms applied for orientation sensitive image analysis and restoration. The square integrable representations of the shearlet groups provide not only the basis for the shearlet transforms but also for a very natural definition of scales of smoothness spaces, called ...
Dahlke, Stephan +5 more
semanticscholar +6 more sources
Standard shearlet group in arbitrary space dimensions and projections in its L1-algebra
Indian Journal of Pure and Applied Mathematics, 2019 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zare, Masoumeh, Kamyabi-Gol, Rajab Ali
semanticscholar +4 more sources
Revista Gestão Inovação e Tecnologias, 2021 Aim: The aim of this paper is to compress the x-ray images using wavelet and shearlet transform and compare the compression ratios to find a better transform.
Gollapudi Douthya +2 more
openaire +3 more sources
Revista Gestão Inovação e Tecnologias, 2021 Aim: Aim of this study is to compress X-ray images using wavelet packet transform and shearlet transform. These two transforms were compared for the better compression ratio to store large hospital data files in small memory space. Materials and methods: Sample X-ray images were, Wavelet packet (30) and Shearlet (30) for compression.
Haripriya Perolla, Nibedita Dey
openaire +3 more sources
$p$-adic Dual Shearlet Frames [PDF]
Sahand Communications in Mathematical Analysis, 2019 We introduced the continuous and discrete $p$-adic shearlet systems. We restrict ourselves to a brief description of the $p$-adic theory and shearlets in real case.
Mahdieh Fatemidokht +1 more
doaj +2 more sources
Simplified vanishing moment criteria for wavelets over general dilation groups, with applications to abelian and shearlet dilation groups [PDF]
Applied and Computational Harmonic Analysis, 2017 30 pages; (2nd revision: streamlined exposition, typos removed, additional references)
Führ, Hartmut, Tousi, Reihaneh Raisi
openaire +4 more sources
Irregular Shearlet Frames: Geometry and Approximation Properties
, 2010 Recently, shearlet systems were introduced as a means to derive efficient encoding methodologies for anisotropic features in 2-dimensional data with a unified treatment of the continuum and digital setting.
Kittipoom, P., Kutyniok, G., Lim, W.
core +3 more sources
智慧农业, 2023 ObjectiveTo construct the 3D point cloud model of green plants a large number of clear images are needed. Due to the limitation of the depth of field of the lens, part of the image would be out of focus when the green plant image with a large depth of ...
LI Jiahao +4 more
doaj +1 more source