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Compactly Supported Curvelet-Type Systems
Published 2012-01-01“…We study a flexible method for constructing curvelet-type frames. These curvelet-type systems have the same sparse representation properties as curvelets for appropriate classes of smooth functions, and the flexibility of the method allows us to give a constructive description of how to construct curvelet-type systems with a prescribed nature such as compact support in direct space. …”
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A Curvelet-SC Recognition Method for Maize Disease
Published 2015-01-01“…Because the corn vein and noise influence the contour extraction of the maize leaf disease, we put forward a new recognition algorithm based on Curvelet and Shape Context (SC). This method can improve the speed and accuracy of maize leaf disease recognition. …”
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An ultraviolet image enhancement algorithm in Curvelet domain based on human visual characteristics
Published 2019-03-01Subjects: Get full text
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Multiresolution Analysis Using Wavelet, Ridgelet, and Curvelet Transforms for Medical Image Segmentation
Published 2011-01-01“…Multiresolution analysis (MRA) using wavelet, ridgelet, and curvelet transforms has been used in the proposed segmentation system. …”
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3D Curvelet-Based Segmentation and Quantification of Drusen in Optical Coherence Tomography Images
Published 2017-01-01“…The proposed algorithm consists of three parts: (1) preprocessing, which includes creating binary mask and removing possible highly reflective posterior hyaloid that is used in accurate detection of inner segment/outer segment (IS/OS) junction layer and Bruch’s membrane (BM) retinal layers; (2) coarse segmentation, in which 3D curvelet transform and graph theory are employed to get the possible candidate drusenoid regions; (3) fine segmentation, in which morphological operators are used to remove falsely extracted elongated structures and get the refined segmentation results. …”
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Iris recognition algorithm based on feature weighting fast discrete Curvelet transform and fuzzy LS-SVM
Published 2016-03-01Subjects: Get full text
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Diabetic retinopathy grading using curvelet CNN with optimized SSO activations and wavelet-based image enhancement
Published 2025-01-01Subjects: Get full text
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Iris recognition based on generalized Gaussian distribution FDCT_Wrap and FSVM
Published 2016-07-01Subjects: Get full text
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Spatial Images Feature Extraction Based on Bayesian Nonlocal Means Filter and Improved Contourlet Transform
Published 2012-01-01“…Experimental results both on standard images and spatial images confirm that the proposed algorithm yields significantly better performance than nonsubsampled wavelet transform, contourlet, and curvelet approaches.…”
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