Results 41 to 50 of about 2,474,827 (184)

Automatic Gleason Grading of Prostate Cancer Using Shearlet Transform and Multiple Kernel Learning

open access: yesJournal of Imaging, 2016
The Gleason grading system is generally used for histological grading of prostate cancer. In this paper, we first introduce using the Shearlet transform and its coefficients as texture features for automatic Gleason grading.
Hadi Rezaeilouyeh, Mohammad H. Mahoor
doaj   +1 more source

GF-3 SAR IMAGE DESPECKLING BASED ON THE IMPROVED NON-LOCAL MEANS USING NON-SUBSAMPLED SHEARLET TRANSFORM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
GF-3 synthetic aperture radar (SAR) images are rich in information and have obvious sparse features. However, the speckle appears in the GF-3 SAR images due to the coherent imaging system and it hinders the interpretation of images seriously.
R. Shi, Z. Sun
doaj   +1 more source

Use of the Shearlet Transform and Transfer Learning in Offline Handwritten Signature Verification and Recognition [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2020
Despite the growing growth of technology, handwritten signature has been selected as the first option between biometrics by users. In this paper, a new methodology for offline handwritten signature verification and recognition based on the Shearlet ...
Atefeh Foroozandeh   +2 more
doaj   +1 more source

Image fusion based on shift invariant shearlet transform and stacked sparse autoencoder

open access: yesJournal of Algorithms & Computational Technology, 2018
Stacked sparse autoencoder is an efficient unsupervised feature extraction method, which has excellent ability in representation of complex data. Besides, shift invariant shearlet transform is a state-of-the-art multiscale decomposition tool, which is ...
Peng-Fei Wang   +3 more
doaj   +1 more source

ShearLab 3D [PDF]

open access: yesACM 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
openaire   +3 more sources

Identification of Colon Cancer Using Multi-Scale Feature Fusion Convolutional Neural Network Based on Shearlet Transform

open access: yesIEEE 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
doaj   +1 more source

Homogeneous approximation property for continuous shearlet transforms in higher dimensions

open access: yesJournal 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
doaj   +1 more source

Multivariate Shearlet Transform, Shearlet Coorbit Spaces and Their Structural Properties [PDF]

open access: yes, 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
openaire   +1 more source

The Medical Image Denoising Method Based on the CycleGAN and the Complex Shearlet Transform

open access: yesInternational Journal of Advanced Computer Science and Applications, 2023
— Medical image denoising plays an important role for the noise in the medical images can reduce the visibility, thereby affecting the diagnostic results of the doctors.
Chunxiang Liu   +5 more
semanticscholar   +1 more source

A novel feature descriptor based on the shearlet transform [PDF]

open access: yes2011 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
openaire   +1 more source

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