Fouriscale: A frequency perspective on training-free high-resolution image synthesis

L Huang, R Fang, A Zhang, G Song, S Liu… - … on Computer Vision, 2024 - Springer
In this study, we delve into the generation of high-resolution images from pre-trained
diffusion models, addressing persistent challenges, such as repetitive patterns and structural …

Multiscale AM-FM methods for diabetic retinopathy lesion detection

C Agurto, V Murray, E Barriga, S Murillo… - IEEE transactions on …, 2010 - ieeexplore.ieee.org
In this paper, we propose the use of multiscale amplitude-modulation-frequency-modulation
(AM-FM) methods for discriminating between normal and pathological retinal images. The …

Phase-based level set segmentation of ultrasound images

A Belaid, D Boukerroui, Y Maingourd… - IEEE transactions on …, 2010 - ieeexplore.ieee.org
Ultrasonic image segmentation is a difficult problem due to speckle noise, low contrast, and
local changes of intensity. Intensity-based methods do not perform particularly well on …

Deep scattering network with fractional wavelet transform

J Shi, Y Zhao, W **ang, V Monga… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Deep convolutional neural networks (DCNNs) have recently emerged as a powerful tool to
deliver breakthrough performances in various image analysis and processing applications …

Multiscale amplitude-modulation frequency-modulation (AM–FM) texture analysis of multiple sclerosis in brain MRI images

CP Loizou, V Murray, MS Pattichis… - IEEE Transactions …, 2010 - ieeexplore.ieee.org
This study introduces the use of multiscale amplitude modulation-frequency modulation (AM-
FM) texture analysis of multiple sclerosis (MS) using magnetic resonance (MR) images from …

An intensity-texture model based level set method for image segmentation

H Min, W Jia, XF Wang, Y Zhao, RX Hu, YT Luo… - Pattern Recognition, 2015 - Elsevier
In this paper, a novel level set segmentation model integrating the intensity and texture
terms is proposed to segment complicated two-phase nature images. Firstly, an intensity …

Medical image analysis using AM-FM models and methods

KP Constantinou, IP Constantinou… - IEEE Reviews in …, 2020 - ieeexplore.ieee.org
Medical image analysis methods require the use of effective representations for
differentiating between lesions, diseased regions, and normal structure. Amplitude …

Multiscale AM-FM demodulation and image reconstruction methods with improved accuracy

V Murray, P Rodríguez… - IEEE transactions on …, 2010 - ieeexplore.ieee.org
We develop new multiscale amplitude-modulation frequency-modulation (AM-FM)
demodulation methods for image processing. The approach is based on three basic ideas:(i) …

Construction of Hilbert transform pairs of wavelet bases and Gabor-like transforms

KN Chaudhury, M Unser - IEEE Transactions on Signal …, 2009 - ieeexplore.ieee.org
We propose a novel method for constructing Hilbert transform (HT) pairs of wavelet bases
based on a fundamental approximation-theoretic characterization of scaling functions—the …

Recent multiscale AM-FM methods in emerging applications in medical imaging

V Murray, MS Pattichis, ES Barriga, P Soliz - EURASIP Journal on …, 2012 - Springer
Amplitude-modulation frequency-modulation (AM-FM) decompositions represent images
using spatially-varying sinusoidal waves and their spatially-varying amplitudes. AM-FM …