Results 61 to 70 of about 538 (196)
LMMSE-Based Image Denoising in Nonsubsampled Contourlet Transform Domain [PDF]
, 2010 This paper proposes a nonsubsampled contourlet transform (NSCT) based multiscale linear minimum mean square-error estimation (LMMSE) scheme for image denoising. The contourlet transform is a new extension of the wavelet transform that provides a multi-resolution and multi-direction analysis for two dimension images.
Md. Foisal Hossain +2 more
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image fusion algorithm based on neighbors and cousins information in nonsubsampled contourlet transform domain [PDF]
, 2008 Nonsubsampled contourlet transform (NSCT) provides flexible multiresolution, anisotropy and directional expansion for images. Compared with the foremost contourlet transform, it is shift-invariant and can overcome the pseudo-Gibbs phenomena around ...
Yan Jing-Wen +4 more
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IEEE Access, 2021 Noise reduction is important for X-ray images because it can reduce radiation exposure to patients. X-ray image noise has a Poisson-Gaussian distribution, and recently, noise analysis and removal in multiscale transformations have been widely implemented.
Sangyoon Lee, Moon Gi Kang
doaj +1 more source
Image steganography based on nonsubsampled Contourlet transform and Hill cipher
Dianxin kexue, 2016 A novel image steganography was proposed，which was based on nonsubsampled Contourlet transform （NSCT）and Hill cipher.Firstly，cover image was decomposed with NSCT.It provided a multi-scale and multi-directional representation of an image.One of subbands ...
Shuliang SUN
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Color Image Enhancement Algorithm Based on Nonsubsampled Contourlet Transform
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
A parallel fusion method of remote sensing image based on NSCT [PDF]
Компьютерная оптика, 2019 Remote sensing image fusion is very important for playing the advantages of a variety of remote sensing data. However, remote sensing image fusion is large in computing capacity and time consuming.
Xiaorong Xue, Fang Xiang, Hongfu Wang
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Change detection in multitemporal synthetic aperture radar (SAR) images has been an important research content in the field of remote sensing for a long time.
Weisong Li +4 more
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IMAGE SEPARATION BASED ON NONSUBSAMPLED CONTOURLET(NSCT) [PDF]
, 2018 When an image or a document on a paper acquired through scanning, photographing or photocopying, the image on the back page may be show through. This cause a non-linear image mixture and should be resolved through a non-linear source separation.
Azadeh Bamdad Moghadam (4906522) +3 more
core +1 more source
Research of Nonsubsampled Contourlet Transform and its Application on Image Processing [PDF]
, 2008 Contourlet变换是一种新的“真正”的二维图像表示方法，具有多分辨率、多方向、时频局部和各向异性等特点，在图像处理领域有着广泛的应用前景。但Contourlet变换不具有平移不变特性，在某些图像处理领域的应用效果并不是十分理想。无下采样Contourlet变换(NonsubsampledContourletTransform,NSCT)有效地克服了Contourlet变换不具有平移不变特性的缺陷，在某些图像处理领域，如图像去噪、数字水印等领域 ...
连学强
core
CAD for detection of microcalcification and classification in mammograms [PDF]
, 2014 In this study, computer aided diagnosis (CAD) is developed to detect microcalficication cluster which is one of the important radiological findings of breast cancer diagnosis and classificiation. For this purpose, image processing and pattern recognition
AKBAY, Cansu +5 more
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