Results 51 to 60 of about 566 (171)
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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IEEE Access, 2021 Seismic exploration is a remote-sensing tool applied in a great many projects for engineering and resource-exploration purposes. Random noise suppression is one of the key steps in seismic-signal processing, especially those with important details and ...
Xiannan Wang, Jian Zhang, Hao Cheng
doaj +1 more source
Bendlets: A second-order shearlet transform with bent elements [PDF]
Applied and Computational Harmonic Analysis, 2019 We introduce bendlets, a shearlet-like system that is based on anisotropic scaling, translation, shearing, and bending of a compactly supported generator. With shearing being linear and bending quadratic in spatial coordinates, bendlets provide what we term a second-order shearlet system.
Lessig, Christian +2 more
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On Quaternion Shearlet Transforms
, 2018 In this paper, we introduce the notion of quaternion shearlet transform- which is an extension of the ordinary shearlet transform. Firstly, we study the fundamental properties of quaternion shearlet transforms and then establish some basic results including Moyal's and inversion formulae.
Shah, Firdous A., Tantary, Azhar Y.
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Image registration using the shearlet transform [PDF]
SPIE Proceedings, 2015 In this paper, we present an algorithm for image registration utilizing the shearlet representation. The shearlet framework allows one to collect multi-scale and multi-directional feature information from multidimensional data that can be used to create key feature vectors that are scale, rotation, and shift invariant. These key feature vectors produce
Glenn R. Easley +2 more
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Research on Precise Identification of Rock Strength Based on Bolt Drilling Parameters
Energy Science &Engineering, Volume 14, Issue 3, Page 1353-1371, March 2026.Drilling detection test platform. ABSTRACT During roadway excavation, the presence of weak interlayers and fractured rock masses significantly affects roof stability. To achieve timely and effective roadway support, it is crucial to identify and predict different rock types based on drilling signals from roof bolters.
Qiang Zhu +4 more
wiley +1 more source
Non-subsample Shearlet Wave Watermarking Algorithm Based on Texture Directionality [PDF]
Jisuanji gongcheng, 2018 In order to solve the problem of the irreconcilability between invisibility and robustness of watermarking algorithm,a novel watermarking algorithm using Non-subsample Shearlet Wave Transform(NSST) is proposed.The algorithm uses shearlet wave transform ...
ZHAO Jian,FAN Shuaishuai,XU Wensheng,ZHANG Wanru
doaj
IEEE Access, 2019 Conventional objective image assessment metrics, such as mean squared error and peak signal-to-noise ratio, which only calculates pixel-based differences between the original and the degraded images, are not in agreement with the human vision.
Wu Dong, Hongxia Bie, Likun Lu, Yeli Li
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Low-Light Image Enhancement Based on Nonsubsampled Shearlet Transform
IEEE Access, 2020 To improve the observability of low-light images, a low-light image enhancement algorithm based on nonsubsampled shearlet transform (NSST) is presented (LIEST). The proposed algorithm can synchronously achieve contrast improvement, noise suppression, and
Manli Wang +4 more
doaj +1 more source