Results 1 to 10 of about 114 (95)
Local-Ternary-Pattern-Based Associated Histogram Equalization Technique for Cervical Cancer Detection [PDF]
Diagnostics, 2023 Every year, cervical cancer is a leading cause of mortality in women all over the world. This cancer can be cured if it is detected early and patients are treated promptly.
Saravanan Srinivasan +5 more
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Orthonormal finite ridgelet transform for image compression [PDF]
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101), 2000 A finite implementation of the ridgelet transform is presented. The transform is invertible, non-redundant and achieved via fast algorithms. Furthermore we show that this transform is orthogonal hence it allows one to use non-linear approximations for the representation of images. Numerical results on different test images are shown.
Martin Vetterli, M N Do
exaly +3 more sources
The finite ridgelet transform for image representation
IEEE Transactions on Image Processing, 2003 The ridgelet transform was introduced as a sparse expansion for functions on continuous spaces that are smooth away from discontinuities along lines. We propose an orthonormal version of the ridgelet transform for discrete and finite-size images. Our construction uses the finite Radon transform (FRAT) as a building block.
Minh Do, Martin Vetterli, M N Do
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Color Ultrasound Image Watermarking Scheme Using FRT and Hessenberg Decomposition for Telemedicine Applications [PDF]
Journal of Universal Computer Science, 2022 Watermarking is a valuable technique for verifying medical images obtained through the internet for diagnosis. There is a greater need for security in medical pictures with ever- increasing security risks.
Lalan Kumar, Kamred Udham Singh
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A Novel Optimized Semi-Blind Scheme for Color Image Watermarking
IEEE Access, 2020 Image watermarking is a robust solution for solving key issues like copyright protection and proof of ownership of digital data. Existing schemes of image watermarking mostly used grayscale or binary images as embedded watermarks, while only a few ...
Adnan Mustafa Cheema +2 more
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Image denoising using orthonormal finite ridgelet transform [PDF]
SPIE Proceedings, 2000 This paper addresses the image denoising problem using a newly proposed digital image transform: the finite rigdelet transform (FRIT). The transform is invertible, non-redundant and achieved via fast algorithms. Furthermore this transform can be designed to be orthonormal thus indicating its potential in many other image processing applications.
Do, Minh N., Vetterli, Martin
openaire +2 more sources
Blind image separation using pyramid technique
EURASIP Journal on Image and Video Processing, 2018 Signal and image separation is an important processing step for accurate image reconstruction, which is increasingly applied to many medical imaging applications and communication systems.
M. Y. Abbass, HyungWon Kim
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Open Physics, 2016 Image steganography is one of the ever growing computational approaches which has found its application in many fields. The frequency domain techniques are highly preferred for image steganography applications.
Jude Hemanth Duraisamy +3 more
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A HYBRID FACE RECOGNITION APPROACH USING LOCAL FUSION OF COMPLEX DUAL-TREE WAVELET COEFFICIENTS AND RIDGELET TRANSFORM [PDF]
ICTACT Journal on Image and Video Processing, 2011 In this paper, we propose novel face recognition method based on local appearance feature extraction using hybrid mode of local ridge- let and fused dual-tree complex wavelet transform (DT-CWT).
K. Jaya Priya, R.S. Rajesh
doaj
Cosmological Non-Gaussian Signature Detection: Comparing Performance of Different Statistical Tests
EURASIP Journal on Advances in Signal Processing, 2005 Currently, it appears that the best method for non-Gaussianity detection in the cosmic microwave background (CMB) consists in calculating the kurtosis of the wavelet coefficients.
Starck J-L +4 more
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