Results 21 to 30 of about 199,372 (271)

Deep Unfolded Robust PCA with Application to Clutter Suppression in Ultrasound [PDF]

bioRxiv, 2018
Contrast enhanced ultrasound is a radiation-free imaging modality which uses encapsulated gas microbubbles for improved visualization of the vascular bed deep within the tissue. It has recently been used to enable imaging with unprecedented subwavelength
Oren Solomon, Regev Cohen, Yi Zhang, Yi Yang, Qiong He, Jianwen Luo, Ruud J. G. van Sloun, Yonina C. Eldar   +7 more
semanticscholar   +1 more source

Clutter Elimination and Random-Noise Denoising of GPR Signals Using an SVD Method Based on the Hankel Matrix in the Local Frequency Domain

Sensors, 2018
Ground-penetrating radar (GPR) is a kind of high-frequency electromagnetic detection technology. It is mainly used to locate targets and interfaces in underground structures.
Wenda Bi, Yonghui Zhao, Cong An, Shufan Hu   +3 more
doaj   +1 more source

Characterizing Clutter in the Context of Detecting Weak Gaseous Plumes in Hyperspectral Imagery

Sensors, 2006
Weak gaseous plume detection in hyperspectral imagery requires thatbackground clutter consisting of a mixture of components such as water, grass, and asphaltbe well characterized.
Brian McVey, Herb Fry, Bernie Foy, Tom Burr   +3 more
doaj   +1 more source

Maximizing decision-making style and hoarding disorder symptoms

Comprehensive Psychiatry, 2020
Background: Past research links hoarding disorder (HD) to indecisiveness and difficulty with decision-making. However, it remains unclear what contributes to difficulty making decisions in HD.
Michael G. Wheaton, PhD, Kimberly Topilow, MA   +1 more
doaj   +1 more source

From Paths to Routes: A Method for Path Classification

Frontiers in Behavioral Neuroscience, 2021
Many animals establish, learn and optimize routes between locations to commute efficiently. One step in understanding route following is defining measures of similarities between the paths taken by the animals.
Andrea Gonsek, Manon Jeschke, Silvia Rönnau, Olivier J. N. Bertrand   +3 more
doaj   +1 more source

Effect of the Temperature-Emissivity Contrast on the Chemical Signal for Gas Plume Detection Using Thermal Image Data

Sensors, 2008
Detecting and identifying weak gaseous plumes using thermal imaging data is complicated by many factors. These include variability due to atmosphere, ground and plume temperature, and background clutter. This paper presents an analysis of one formulation
Candace Metoyer, Mark Tardiff, Larry Chilton, Stephen Walsh   +3 more
doaj   +1 more source

Window Detection from UAS-Derived Photogrammetric Point Cloud Employing Density-Based Filtering and Perceptual Organization

Remote Sensing, 2018
Point clouds with ever-increasing volume are regular data in 3D city modelling, in which building reconstruction is a significant part. The photogrammetric point cloud, generated from UAS (Unmanned Aerial System) imagery, is a novel type of data in ...
Shirin Malihi, Mohammad Javad Valadan Zoej, Michael Hahn, Mehdi Mokhtarzade   +3 more
doaj   +1 more source

A comparative study of linear and region based diagrams

Journal of Spatial Information Science, 2015
There are two categories of objects spatial information science investigates: actual objects and their spatial properties, such as in geography, and abstract objects which are employed metaphorically, as for visual languages.
Björn Gottfried
doaj   +1 more source

Improved entropy-based autofocus correction for synthetic aperture radar

The Journal of Engineering, 2019
Autofocus is an essential step in order to obtain the well-focused synthetic aperture radar image. Compared to the non-parametric autofocus, the parametric way is not subjected to the prominent targets so much.
Qianrong Lu, Penghui Huang, Yesheng Gao, Xingzhao Liu   +3 more
doaj   +1 more source

Evaluation of AND-CFAR and OR-CFAR Processors Under Different Clutter Models [PDF]

Engineering and Technology Journal, 2013
In this paper an evaluation the detection performances for (AND-CFAR) and (OR-CFAR) processors under different clutter models is done for pulsed radar system.
Waleed Khalid Abd-Ali, Najim Abd-Ullah
doaj   +1 more source