Results 71 to 80 of about 901 (179)

Image fusion method based on simultaneous sparse representation with non‐subsampled contourlet transform

open access: yesIET Computer Vision, 2019
The image fusion method based on sparse representation in the single‐scale image domain has produced better fusion results than the classic methods based on multi‐scale analysis nowadays.
Guiqing He   +4 more
doaj   +1 more source

Compressed Sensing MRI Reconstruction Algorithm Based on Contourlet Transform and Alternating Direction Method

open access: yesJournal of Electrical and Computer Engineering, 2015
Compressed sensing (CS) based methods have recently been used to reconstruct magnetic resonance (MR) images from undersampled measurements, which is known as CS-MRI.
Zhenyu Hu   +5 more
doaj   +1 more source

The Quincunx Filter-Based Sharp Frequency Localized Contourlet Transform for Image Denoising

open access: yesJournal of Engineering and Sustainable Development, 2011
The contourlet transform, one of the recent geometrical transform offers the two important features of anisotropy scaling law and directionality, but non-ideal filters are used which results in two important problems, first is the pseudo-Gibbs phenomena
Nidaa H. Abbas
doaj  

A unified comparative framework for multiscale geometric transforms in SAR and multispectral satellite image analysis

open access: yesFrontiers in Remote Sensing
Satellite image analysis is essential for remote sensing analysis. Two types of data are captured via satellite: Synthetic Aperture Radar (SAR) imagery (which has structure) and multispectral imagery (which contains spectral information), so ...
Sai Bhargav Kasetty, Rajakumar Krishnan
doaj   +1 more source

Color Image Enhancement Algorithm Based on Nonsubsampled Contourlet Transform

open access: yes工程科学与技术, 2013
: In this paper, a color image enhancement algorithm combined DCT transform and nonsubsampled contourlet transform was proposed. Since the difference of subband characteristics of nonsubsampled contourlet transform, different enhancement algorithms were
QIU Panpan   +3 more
doaj  

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