Results 41 to 50 of about 566 (171)
ACM Transactions on Mathematical Software, 2016 Wavelets and their associated transforms are highly efficient when approximating and analyzing one-dimensional signals. However, multivariate signals such as images or videos typically exhibit curvilinear singularities, which wavelets are provably deficient in sparsely approximating and also in analyzing in the sense of, for instance, detecting their ...
Gitta Kutyniok +2 more
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IEEE Access, 2020 Colon cancer identification is of great significance in medical diagnosis. Real-time, objective and accurate inspection results will facilitate medical professionals to explore symptomatic treatment promptly.
Meiyan Liang +4 more
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Homogeneous approximation property for continuous shearlet transforms in higher dimensions
Journal of Inequalities and Applications, 2016 This paper is concerned with the generalization of the homogeneous approximation property (HAP) for a continuous shearlet transform to higher dimensions. First, we give a pointwise convergence result on the inverse shearlet transform in higher dimensions.
Yu Su, Wanchang Zhang, Wenting Su
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Multivariate Shearlet Transform, Shearlet Coorbit Spaces and Their Structural Properties [PDF]
, 2012 This chapter is devoted to the generalization of the continuous shearlet transform to higher dimensions as well as to the construction of associated smoothness spaces and to the analysis of their structural properties, respectively. To construct canonical scales of smoothness spaces, so-called shearlet coorbit spaces, and associated atomic ...
Stephan Dahlke +2 more
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A novel feature descriptor based on the shearlet transform [PDF]
2011 18th IEEE International Conference on Image Processing, 2011 Problems such as image classification, object detection and recognition rely on low-level feature descriptors to represent visual information. Several feature extraction methods have been proposed, including the Histograms of Oriented Gradients (HOG), which captures edge information by analyzing the distribution of intensity gradients and their ...
William Robson Schwartz +3 more
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Apply hyperanalytic shearlet transform to geometric separation [PDF]
EURASIP Journal on Advances in Signal Processing, 2014 This paper first proposes a novel image separation method based on the hyperanalytic shearlet. By combining the advantages of both the hyperanalytic wavelet transform and the shear operation, hyperanalytic shearlet is easy to implement and also has a low redundancy.
Shuaiqi Liu 0001 +4 more
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Light Field Reconstruction Using Shearlet Transform [PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2018 12 pages, 11 ...
Suren Vagharshakyan +2 more
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Informatics in Medicine Unlocked, 2020 Background: Optical Coherence Tomography (OCT) is an emerging medical imaging technology. It is well suited to various medical applications requiring tissue imaging with micrometer resolution and millimeter penetration depth such as in ophthalmology and ...
Bassel Haydar +3 more
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Space–Time Signal Analysis and the 3D Shearlet Transform [PDF]
Journal of Mathematical Imaging and Vision, 2018 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Damiano Malafronte +2 more
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Video text localization using wavelet and shearlet transforms [PDF]
SPIE Proceedings, 2013 Text in video is useful and important in indexing and retrieving the video documents efficiently and accurately. In this paper, we present a new method of text detection using a combined dictionary consisting of wavelets and a recently introduced transform called shearlets.
Purnendu Banerjee, Bidyut B. Chaudhuri
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