Results 11 to 20 of about 5,527 (155)

Image fusion techniqes for remote sensing applications [PDF]

, 2002
Image fusion refers to the acquisition, processing and synergistic combination of information provided by various sensors or by the same sensor in many measuring contexts.
Bruzzone, Lorenzo, Farina, Alfonso, Morabito, Francesco, Serpico, Sebastiano Bruno, Simone, Giovanni   +4 more
core   +1 more source

Calibration and accuracy assessment of Leica ScanStation C10 terrestrial laser scanner [PDF]

, 2013
Requirement of high accuracy data in surveying applications has made calibration procedure a standard routine for all surveying instruments. This is due to the assumption that all observed data are impaired with errors.
Abbas, Mohd Azwan, Aspuri, Anuar, Chong, Albert K., Idris, Khairulnizam M., Majid, Zulkepli, Setan, Halim   +5 more
core   +1 more source

Multidimensional Speckle Noise Model

EURASIP Journal on Advances in Signal Processing, 2005
One of the main problems of SAR imagery is the presence of speckle noise, originated by the inherent coherent nature of this type of systems. For one-dimensional SAR systems it has been demonstrated that speckle can be considered as a multiplicative ...
Fàbregas Xavier, López-Martínez Carlos, Pottier Eric   +2 more
doaj   +1 more source

Entropy-based Statistical Analysis of PolSAR Data

, 2012
Images obtained from coherent illumination processes are contaminated with speckle noise, with polarimetric synthetic aperture radar (PolSAR) imagery as a prominent example.
Cintra, Renato J., Frery, Alejandro C., Nascimento, Abraão D. C.   +2 more
core   +1 more source

An Automatic Ship Detection Method Based on Local Gray-Level Gathering Characteristics in SAR Imagery [PDF]

, 2012
This paper proposes an automatic ship detection method based on gray-level gathering characteristics of synthetic aperture radar (SAR) imagery. The method does not require any prior knowledge about ships and background observation.
CuiXia, Chen, XiaoLong, Wang
core   +3 more sources

LightKD-SAR: Lightweight Architecture With Knowledge Distillation for High-Performance SAR Object Detection

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Synthetic aperture radar (SAR) object detection plays a crucial role in remote sensing applications. However, conventional methods often require high computational and memory costs, limiting their deployment in resource constrained environments.
Zhuang Zhou, Shengyang Li, Yixuan Lv, Shicheng Guo, Han Wang, Jian Yang, Jianing You, Kailun Zhang   +7 more
doaj   +1 more source

An approach for Canadian river hydrokinetic resource assessment with synthetic aperture radar satellite images

International Journal of Applied Earth Observations and Geoinformation
This paper describes a novel approach that uses Synthetic Aperture Radar (SAR) satellite imagery to identify river sections with persistent, stable, high-flow water.
T. Geldsetzer, J.J. van der Sanden, G. Ranjitkar, J. Huang, B. Perry, E. Bibeau   +5 more
doaj   +1 more source

Multi-Baseline InSAR DEM Reconstruction and Multi-Source Performance Evaluation Based on the PIESAT-1 “Wheel” Constellation

Remote Sensing
The accuracy of Digital Elevation Models (DEMs) plays a crucial role in determining their reliability for geoscientific and engineering applications. Next-generation distributed interferometric synthetic aperture radar (SAR) constellations, such as the ...
Shen Qiao, Chengzhi Sun, Xinying Wu, Lingyu Bi, Jianfeng Song, Liang Xiong, Yong’an Yu, Zihao Li, Hongzhou Li   +8 more
doaj   +1 more source

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Classification of Complex Wishart Matrices with a Diffusion-Reaction System guided by Stochastic Distances

, 2015
We propose a new method for PolSAR (Polarimetric Synthetic Aperture Radar) imagery classification based on stochastic distances in the space of random matrices obeying complex Wishart distributions.
Alvarez, Luis, Frery, Alejandro C., Gomez, Luis, Mazorra, Luis   +3 more
core   +1 more source