Results 81 to 90 of about 538 (196)

Side-Scan Sonar Image Fusion Based on Sum-Modified Laplacian Energy Filtering and Improved Dual-Channel Impulse Neural Network

open access: yesApplied Sciences, 2020
The operation mode of a single strip provides incomplete side-scan sonar image in a specific environment and range, resulting in the overlapping area between adjacent strips often with imperfect detection information or inaccurate target contour. In this
Ping Zhou   +5 more
doaj   +1 more source

CLASSIFICATION OF MICROCALCIFICATIONS IN DIGITAL MAMMOGRAMS USING NONSUBSAMPLED CONTOURLET TRANSFORM IJCET © I A E M E [PDF]

open access: yes, 2020
With the advances in medical science there have been a various of techniques that have been emerged in order detect the disease like cancer. Breast cancer is one of the most common disease that occurs in majority of women.
Komal Chaudhari, Prof Priti Subramanium
core  

Block‐Extraction and Haar Transform Based Linear Singularity Representation for Image Enhancement [PDF]

open access: yes, 2019
In this paper, we develop a novel linear singularity representation method using spatial K‐neighbor block‐extraction and Haar transform (BEH). Block‐extraction provides a group of image blocks with similar (generally smooth) backgrounds but different ...
Hou, Yingkun   +4 more
core   +2 more sources

Image Fusion Algorithm Based on Spatial Frequency-Motivated Pulse Coupled Neural Networks in Nonsubsampled Contourlet Transform Domain [PDF]

open access: yes, 2008
Nonsubsampled contourlet transform (NSCT) provides °exible multiresolution, anisotropy and directional expansion for images. Compared with the original contourlet transform, it is shift-invariant and can overcome the pseudo-Gibbs phenomena around ...
ZHU Zi-Qian   +7 more
core  

Performance Analysis of Image Fusion Methods in Transform Domain [PDF]

open access: yes, 2013
Image fusion involves merging two or more images in such a way as to retain the most desirable characteristics of each. There are various image fusion methods and they can be classified into three main categories: i) Spatial domain, ii) Transform domain,
Choi, Youngjoon   +2 more
core   +2 more sources

Cyber-Resilient Detection of Power Quality Events With NSCT and PCA-SVM

open access: yesIEEE Access
The increasing reliance on smart grids, coupled with the integration of renewable energy and growing cyber-physical interactions, has heightened the vulnerability of power systems to both power quality (PQ) disturbances and cyber-attacks.
Sayanti Chatterjee   +7 more
doaj   +1 more source

A Hybrid the Nonsubsampled Contourlet Transform and Homomorphic Filtering for Enhancing Mammograms [PDF]

open access: yes, 2015
Mammogram is important for early breast cancer detection. But due to the low contrast of microcalcifications and noise, it is difficult to detect microcalcification.
Fakir, Mohamed   +3 more
core   +2 more sources

Two-level nonsubsampled contourlet transform decomposition. [PDF]

open access: yes, 2013
(a) NSFB structure that implements the NSCT (b) The obtained Frequency partitioning.
Chunxia Zhao (305710)   +2 more
core   +1 more source

Fusion of Unmanned Aerial Vehicle Panchromatic and Hyperspectral Images Combining Joint Skewness-Kurtosis Figures and a Non-Subsampled Contourlet Transform

open access: yesSensors, 2018
To obtain fine and potential features, a highly informative fused image created by merging multiple images is usually required. In our study, a novel fusion algorithm called JSKF-NSCT is proposed for fusing panchromatic (PAN) and hyperspectral (HS ...
Jinling Zhao   +5 more
doaj   +1 more source

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