Results 71 to 80 of about 2,512,732 (195)

Spectral-factorisation Root-MUSIC algorithm for super-resolution ISAR imaging

The Journal of Engineering, 2019
Inverse synthetic aperture radar (ISAR) is widely used in both military and civil fields recently. The fast Fourier transformation is the conventional method to obtain high-resolution ISAR images, but it is Rayleigh limited and has high sidelobes.
Qiuchen Liu, Yong Wang
doaj   +1 more source

Digital TV image enhancement system [PDF]

, 1973
Efficient, digital image-enhancement process has been developed for high-resolution slow-scan TV images. Scan converter is no longer subject to registration errors, which become more serious as resolution increases.
Biernson, G. A.
core   +1 more source

Cross‐scale resolution consistent network for salient object detection

IET Image Processing
The salient object detection task tries to simulate the human visual system for most eye‐catching objects or regions detection. However, due to the complexity of the visual mechanisms, current methods will suffer from severe performance degradation ...
Xiaoyu Huang, Wei Liu, Minghui Li, Hangyu Nie   +3 more
doaj   +1 more source

Hyperspectral pan-sharpening: a variational convex constrained formulation to impose parallel level lines, solved with ADMM

, 2014
In this paper, we address the issue of hyperspectral pan-sharpening, which consists in fusing a (low spatial resolution) hyperspectral image HX and a (high spatial resolution) panchromatic image P to obtain a high spatial resolution hyperspectral image ...
de Vieilleville, François, Grizonnet, Manuel, Huck, Alexis, Weiss, Pierre   +3 more
core   +1 more source

Super‐resolution reconstruction algorithm for medical images by fusion of wavelet transform and multi‐scale adaptive feature selection

IET Image Processing
Conventional computed tomography (CT) images often suffer from blurred edges and unclear details. Image super‐resolution methods can significantly enhance CT image quality, thereby improving diagnostic accuracy.
QiaoSu Wang, Qiaomei Ma
doaj   +1 more source

Ultra-High-Resolution Optical Remote Sensing Satellite Identification of Pine-Wood-Nematode-Infected Trees

Plants
The pine wood nematode (PWN), one of the globally significant forest diseases, has driven the demand for precise detection methods. Recent advances in satellite remote sensing technology, particularly ultra-high-resolution optical imagery, have opened ...
Ziqi Nie, Lin Qin, Peng Xing, Xuelian Meng, Xianjin Meng, Kaitong Qin, Changwei Wang   +6 more
doaj   +1 more source

Estimation of Ultrasound Echogenicity Map from B-Mode Images Using Convolutional Neural Network

Sensors, 2020
In ultrasound B-mode imaging, speckle noises decrease the accuracy of estimation of tissue echogenicity of imaged targets from the amplitude of the echo signals.
Che-Chou Shen, Jui-En Yang
doaj   +1 more source

Imaging algorithm for multi-channel scan synthetic aperture radar with channel error estimation and compensation

The Journal of Engineering, 2019
The wide swath synthetic aperture radar (SAR) imaging with a fine resolution is fundamentally a contradiction in conventional SAR imaging. To meet the demand of high-resolution width swath (HRWS) imaging, multi-channel scan mode has received a great deal
Feng Xiao, Zegang Ding, Meng Ke
doaj   +1 more source

Homeland security video surveillance system utilising the internet of video things for smart cities

IET Computers & Digital Techniques, 2021
In the contemporary video surveillance system, there have been many efforts made to maintain high security and extend the coverage areas in most of the countries around the world.
Yasser Ismail, Mohamed Hammad, Mahmoud Darwich, Wael Elmedany   +3 more
doaj   +1 more source

A spectral multi-resolution image encoding network [PDF]

, 2010
After a short introduction into traditional image transform coding, multirate systems and multiscale signal coding the paper focuses on the subject of image encoding by a neural network.
Brause, Rüdiger W., Glitsch, Jürgen
core