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53 Results Found

  • Article
  • Open Access
7 Citations
1,910 Views
18 Pages

20 April 2023

The objects presented in synthetic-aperture radar (SAR) images are the products of the joint actions of ground objects and SAR sensors in specific geospatial contexts. With the accumulation of massive time-domain SAR data, scholars have the opportuni...

  • Article
  • Open Access
4 Citations
2,122 Views
25 Pages

6 December 2023

In encryption technology, image scrambling is a common processing operation. This paper proposes a quantum version of the 3D Mobius scrambling transform based on the QRCI model, which changes not only the position of pixels but also the gray values....

  • Article
  • Open Access
52 Citations
3,659 Views
18 Pages

A Color Image Encryption Algorithm Based on Hash Table, Hilbert Curve and Hyper-Chaotic Synchronization

  • Xiaoyuan Wang,
  • Xinrui Zhang,
  • Meng Gao,
  • Yuanze Tian,
  • Chunhua Wang and
  • Herbert Ho-Ching Iu

21 January 2023

Chaotic systems, especially hyper-chaotic systems are suitable for digital image encryption because of their complex properties such as pseudo randomness and extreme sensitivity. This paper proposes a new color image encryption algorithm based on a h...

  • Article
  • Open Access
18 Citations
3,294 Views
21 Pages

1 March 2024

The definition and calculation of a spectral index suitable for characterizing vegetated landscapes depend on the number and widths of the bands of the imaging instrument. Here, we point out the advantages of performing the fusion of hyperspectral (H...

  • Article
  • Open Access
6 Citations
9,296 Views
19 Pages

HyperCube: A Small Lensless Position Sensing Device for the Tracking of Flickering Infrared LEDs

  • Thibaut Raharijaona,
  • Paul Mignon,
  • Raphaël Juston,
  • Lubin Kerhuel and
  • Stéphane Viollet

8 July 2015

An innovative insect-based visual sensor is designed to perform active marker tracking. Without any optics and a field-of-view of about 60°, a novel miniature visual sensor is able to locate flickering markers (LEDs) with an accuracy much greater tha...

  • Article
  • Open Access
56 Citations
9,696 Views
23 Pages

Deep Learning for Soil and Crop Segmentation from Remotely Sensed Data

  • Jack Dyson,
  • Adriano Mancini,
  • Emanuele Frontoni and
  • Primo Zingaretti

9 August 2019

One of the most challenging problems in precision agriculture is to correctly identify and separate crops from the soil. Current precision farming algorithms based on artificially intelligent networks use multi-spectral or hyper-spectral data to deri...

  • Article
  • Open Access
9 Citations
2,691 Views
31 Pages

8 June 2022

With the advancement of technology worldwide, security is essential for online information and data. This research work proposes a novel image encryption method based on combined chaotic maps, Halton sequence, five-dimension (5D) Hyper-Chaotic System...

  • Article
  • Open Access
10 Citations
6,045 Views
21 Pages

This paper analyzes in detail how different loss functions influence the generalization abilities of a deep learning-based next frame prediction model for traffic scenes. Our prediction model is a convolutional long-short term memory (ConvLSTM) netwo...

  • Article
  • Open Access
2 Citations
3,291 Views
11 Pages

This article presents an advanced dual chaotic watermarking scheme to improve information security. To ensure confidentiality in digital image transmission, a secure dual watermarking scheme is proposed by applying the chaotic logistic system and hyp...

  • Article
  • Open Access
14 Citations
3,583 Views
18 Pages

21 January 2023

In this paper, we propose a processing chain jointly employing Sentinel-1 and Sentinel-2 data, aiming to monitor changes in the status of the vegetation cover by integrating the four 10 m visible and near-infrared (VNIR) bands with the three red-edge...

  • Article
  • Open Access
1 Citations
1,110 Views
32 Pages

18 August 2025

With the rapid advancement of information technology, as critical information carriers, images are confronted with significant security risks. To ensure the image security, this paper proposes an image encryption algorithm based on a dynamic rhombus...

  • Article
  • Open Access
2 Citations
736 Views
24 Pages

4 July 2025

Dual polarimetric SAR is capable of reflecting the biophysical and geometrical information of terrain with open access data availability. When it is combined with time-series observations, it can effectively capture the dynamic evolution of scatterin...

  • Article
  • Open Access
12 Citations
7,870 Views
22 Pages

A Neural Network Based Hybrid Mixture Model to Extract Information from Non-linear Mixed Pixels

  • Uttam Kumar,
  • Kumar S. Raja,
  • Chiranjit Mukhopadhyay and
  • T.V. Ramachandra

14 September 2012

Signals acquired by sensors in the real world are non-linear combinations, requiring non-linear mixture models to describe the resultant mixture spectra for the endmember’s (pure pixel’s) distribution. This communication discusses inferring class fra...

  • Article
  • Open Access
2 Citations
3,275 Views
18 Pages

Spectral Representation via Data-Guided Sparsity for Hyperspectral Image Super-Resolution

  • Xian-Hua Han,
  • Yongqing Sun,
  • Jian Wang,
  • Boxin Shi,
  • Yinqiang Zheng and
  • Yen-Wei Chen

7 December 2019

Hyperspectral imaging is capable of acquiring the rich spectral information of scenes and has great potential for understanding the characteristics of different materials in many applications ranging from remote sensing to medical imaging. However, d...

  • Article
  • Open Access
73 Citations
4,865 Views
18 Pages

3 February 2023

Aiming at the problems of small key space and weak resistance to differential attacks in existing encryption algorithms, we proposed a chaotic digital image encryption scheme based on an optimized artificial fish swarm algorithm and DNA coding. First...

  • Article
  • Open Access
25 Citations
6,151 Views
22 Pages

Cloud Removal with SAR-Optical Data Fusion and Graph-Based Feature Aggregation Network

  • Shanjing Chen,
  • Wenjuan Zhang,
  • Zhen Li,
  • Yuxi Wang and
  • Bing Zhang

13 July 2022

In observations of Earth, the existence of clouds affects the quality and usability of optical remote sensing images in practical applications. Many cloud removal methods have been proposed to solve this issue. Among these methods, synthetic aperture...

  • Article
  • Open Access
1,859 Views
21 Pages

5 May 2024

The calculation of land surface temperatures (LSTs) via low-altitude thermal infrared remote (TIR) sensing images at a block scale is gaining attention. However, the accurate calculation of LSTs requires a precise determination of the range of variou...

  • Article
  • Open Access
25 Citations
6,044 Views
15 Pages

Automatic Left Ventricle Segmentation from Short-Axis Cardiac MRI Images Based on Fully Convolutional Neural Network

  • Zakarya Farea Shaaf,
  • Muhammad Mahadi Abdul Jamil,
  • Radzi Ambar,
  • Ahmed Abdu Alattab,
  • Anwar Ali Yahya and
  • Yousef Asiri

Background: Left ventricle (LV) segmentation using a cardiac magnetic resonance imaging (MRI) dataset is critical for evaluating global and regional cardiac functions and diagnosing cardiovascular diseases. LV clinical metrics such as LV volume, LV m...

  • Article
  • Open Access
6 Citations
4,098 Views
30 Pages

2 June 2021

The original Hyperspectral image (HSI) has different degrees of Hughes phenomenon and mixed noise, leading to the decline of classification accuracy. To make full use of the spatial-spectral joint information of HSI and improve the classification acc...

  • Article
  • Open Access
4 Citations
3,761 Views
21 Pages

29 November 2019

High-resolution optical remote sensing image registration is still a challenging task due to non-linearity in the intensity differences and geometric distortion. In this paper, an efficient method utilizing a hyper-graph matching algorithm is propose...

  • Article
  • Open Access
94 Citations
8,404 Views
29 Pages

16 March 2020

Deep learning has already been proved as a powerful state-of-the-art technique for many image understanding tasks in computer vision and other applications including remote sensing (RS) image analysis. Unmanned aircraft systems (UASs) offer a viable...

  • Article
  • Open Access
13 Citations
2,833 Views
21 Pages

13 November 2019

This paper proposes a novel tweak-cube color image encryption scheme jointly manipulated by chaos and hyper-chaos. One-dimensional (1D) chaotic maps are effortless to operate, but the key space is relatively small. The hyperchaotic system has complex...

  • Review
  • Open Access
210 Citations
24,202 Views
41 Pages

23 February 2021

Availability of very high-resolution remote sensing images and advancement of deep learning methods have shifted the paradigm of image classification from pixel-based and object-based methods to deep learning-based semantic segmentation. This shift d...

  • Article
  • Open Access
31 Citations
10,282 Views
42 Pages

Large-Scale Reality Modeling of a University Campus Using Combined UAV and Terrestrial Photogrammetry for Historical Preservation and Practical Use

  • Bryce E. Berrett,
  • Cory A. Vernon,
  • Haley Beckstrand,
  • Madi Pollei,
  • Kaleb Markert,
  • Kevin W. Franke and
  • John D. Hedengren

17 November 2021

Unmanned aerial vehicles (UAV) enable detailed historical preservation of large-scale infrastructure and contribute to cultural heritage preservation, improved maintenance, public relations, and development planning. Aerial and terrestrial photo data...

  • Article
  • Open Access
93 Citations
7,803 Views
9 Pages

Impact of Image Resolution on Deep Learning Performance in Endoscopy Image Classification: An Experimental Study Using a Large Dataset of Endoscopic Images

  • Vajira Thambawita,
  • Inga Strümke,
  • Steven A. Hicks,
  • Pål Halvorsen,
  • Sravanthi Parasa and
  • Michael A. Riegler

24 November 2021

Recent trials have evaluated the efficacy of deep convolutional neural network (CNN)-based AI systems to improve lesion detection and characterization in endoscopy. Impressive results are achieved, but many medical studies use a very small image reso...

  • Article
  • Open Access
24 Citations
4,081 Views
22 Pages

2 January 2023

In recent years, the use of remotely sensed and on-ground observations of crop fields, in conjunction with machine learning techniques, has led to highly accurate crop yield estimations. In this work, we propose to further improve the yield predictio...

  • Article
  • Open Access
13 Citations
2,595 Views
18 Pages

In this paper, we propose a secure image encryption method using compressive sensing (CS) and a two-dimensional linear canonical transform (2D LCT). First, the SHA256 of the source image is used to generate encryption security keys. As a result, the...

  • Article
  • Open Access
3 Citations
1,331 Views
24 Pages

17 September 2025

With the increasing availability of high-dimensional hyperspectral data from modern remote sensing platforms, accurate and efficient classification methods are urgently needed to overcome challenges such as spectral redundancy, spatial variability, a...

  • Article
  • Open Access
13 Citations
6,120 Views
28 Pages

DLR HySU—A Benchmark Dataset for Spectral Unmixing

  • Daniele Cerra,
  • Miguel Pato,
  • Kevin Alonso,
  • Claas Köhler,
  • Mathias Schneider,
  • Raquel de los Reyes,
  • Emiliano Carmona,
  • Rudolf Richter,
  • Franz Kurz and
  • Rupert Müller
  • + 1 author

30 June 2021

Spectral unmixing represents both an application per se and a pre-processing step for several applications involving data acquired by imaging spectrometers. However, there is still a lack of publicly available reference data sets suitable for the val...

  • Article
  • Open Access
54 Citations
2,507 Views
25 Pages

12 November 2023

Nowadays, the utilization of memristors to enhance the dynamical properties of chaotic systems has become a popular research topic. In this paper, we present the design of a novel 2D memristor-enhanced polynomial hyper-chaotic map (2D-MPHM) by utiliz...

  • Article
  • Open Access
5 Citations
1,882 Views
12 Pages

Classification of the Nutritional Status of Peach Trees Using Indexes from Hyperspectral Images

  • Lourdes Lleó,
  • Pilar Barreiro,
  • Victoria Lafuente,
  • Natalia Hernández-Sánchez and
  • Jesús Val

27 October 2023

This paper presents a procedure for the comparison of two technologies developed to classify peach trees according to their nutritional status. The first technology uses the leaf SPAD-502 meter value to characterize tree classes as indicated by agron...

  • Article
  • Open Access
3 Citations
2,062 Views
19 Pages

CD-SDN: Unsupervised Sensitivity Disparity Networks for Hyper-Spectral Image Change Detection

  • Jinlong Li,
  • Xiaochen Yuan,
  • Jinfeng Li,
  • Guoheng Huang,
  • Ping Li and
  • Li Feng

26 September 2022

Deep neural networks (DNNs) could be affected by the regression level of learning frameworks and challenging changes caused by external factors; their deep expressiveness is greatly restricted. Inspired by the fine-tuned DNNs with sensitivity dispari...

  • Article
  • Open Access
4 Citations
1,781 Views
15 Pages

20 September 2024

Deep learning techniques have flourished in recent years and have shown great potential in ground-penetrating radar (GPR) data interpretation. However, obtaining sufficient training data is a great challenge. This paper proposes an intelligent recogn...

  • Article
  • Open Access
144 Citations
4,561 Views
31 Pages

Chaos-based image encryption has become a prominent area of research in recent years. In comparison to ordinary chaotic systems, fractional-order chaotic systems tend to have a greater number of control parameters and more complex dynamical character...

  • Article
  • Open Access
16 Citations
5,236 Views
30 Pages

17 June 2019

The efficient and accurate application of deep learning in the remote sensing field largely depends on the pre-processing technology of remote sensing images. Particularly, image fusion is the essential way to achieve the complementarity of the panch...

  • Article
  • Open Access
17 Citations
2,434 Views
22 Pages

Advantages of Nonlinear Intensity Components for Contrast-Based Multispectral Pansharpening

  • Alberto Arienzo,
  • Luciano Alparone,
  • Andrea Garzelli and
  • Simone Lolli

8 July 2022

In this study, we investigate whether a nonlinear intensity component can be beneficial for multispectral (MS) pansharpening based on component-substitution (CS). In classical CS methods, the intensity component is a linear combination of the spectra...

  • Article
  • Open Access
39 Citations
11,091 Views
30 Pages

Estimates of Forest Growing Stock Volume for Sweden, Central Siberia, and Québec Using Envisat Advanced Synthetic Aperture Radar Backscatter Data

  • Maurizio Santoro,
  • Oliver Cartus,
  • Johan E.S. Fransson,
  • Anatoly Shvidenko,
  • Ian McCallum,
  • Ronald J. Hall,
  • André Beaudoin,
  • Christian Beer and
  • Christiane Schmullius

12 September 2013

A study was undertaken to assess Envisat Advanced Synthetic Aperture Radar (ASAR) ScanSAR data for quantifying forest growing stock volume (GSV) across three boreal regions with varying forest types, composition, and structure (Sweden, Central Siberi...

  • Article
  • Open Access
3 Citations
3,554 Views
14 Pages

Hyperdimensional Imaging Contrast Using an Optical Fiber

  • Jenu V. Chacko,
  • Han Nim Lee,
  • Wenxin Wu,
  • Marisa S. Otegui and
  • Kevin W. Eliceiri

9 February 2021

Fluorescence properties of a molecule can be used to study the structural and functional nature of biological processes. Physical properties, including fluorescence lifetime, emission spectrum, emission polarization, and others, help researchers prob...

  • Article
  • Open Access
21 Citations
5,252 Views
16 Pages

HyperSeed: An End-to-End Method to Process Hyperspectral Images of Seeds

  • Tian Gao,
  • Anil Kumar Nalini Chandran,
  • Puneet Paul,
  • Harkamal Walia and
  • Hongfeng Yu

8 December 2021

High-throughput, nondestructive, and precise measurement of seeds is critical for the evaluation of seed quality and the improvement of agricultural productions. To this end, we have developed a novel end-to-end platform named HyperSeed to provide hy...

  • Article
  • Open Access
2 Citations
3,385 Views
40 Pages

18 July 2022

The instruments of the Mars Reconnaissance Orbiter (MRO) provide a large quantity and variety of imagining data for investigations of the Martian surface. Among others, the hyper-spectral Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) c...

  • Article
  • Open Access
4 Citations
1,943 Views
18 Pages

Feature Enhanced Anchor-Free Network for School Detection in High Spatial Resolution Remote Sensing Images

  • Han Fu,
  • Xiangtao Fan,
  • Zhenzhen Yan,
  • Xiaoping Du,
  • Hongdeng Jian and
  • Chen Xu

18 March 2022

Object detection in remote sensing images (RSIs) is currently one of the most important topics, which can promote the understanding of the earth and better serve for the construction of digital earth. In addition to single objects, there are many com...

  • Article
  • Open Access
31 Citations
4,287 Views
16 Pages

30 September 2022

Forest fires seriously destroy the world’s forest resources and endanger biodiversity. The traditional forest fire target detection models based on convolutional neural networks (CNNs) lack the ability to deal with the relationship between visu...

  • Article
  • Open Access
56 Citations
8,217 Views
15 Pages

UAV-Based Classification of Cercospora Leaf Spot Using RGB Images

  • Florian Görlich,
  • Elias Marks,
  • Anne-Katrin Mahlein,
  • Kathrin König,
  • Philipp Lottes and
  • Cyrill Stachniss

Plant diseases can impact crop yield. Thus, the detection of plant diseases using sensors that can be mounted on aerial vehicles is in the interest of farmers to support decision-making in integrated pest management and to breeders for selecting tole...

  • Article
  • Open Access
19 Citations
4,797 Views
24 Pages

Across Date Species Detection Using Airborne Imaging Spectroscopy

  • Anthony Laybros,
  • Daniel Schläpfer,
  • Jean-Baptiste Féret,
  • Laurent Descroix,
  • Caroline Bedeau,
  • Marie-Jose Lefevre and
  • Grégoire Vincent

2 April 2019

Imaging spectroscopy is a promising tool for airborne tree species recognition in hyper-diverse tropical canopies. However, its widespread application is limited by the signal sensitivity to acquisition parameters, which may require new training data...

  • Article
  • Open Access
2 Citations
1,804 Views
19 Pages

25 September 2025

Instance segmentation in high-resolution images is essential for applications such as remote sensing, medical imaging, and precision agriculture, yet remains challenging due to factors such as small object sizes, irregular shapes, and occlusions. Til...

  • Article
  • Open Access
7 Citations
4,841 Views
19 Pages

18 February 2021

In video surveillance, robust detection of foreground objects is usually done by subtracting a background model from the current image. Most traditional approaches use a statistical method to model the background image. Recently, deep learning has al...

  • Article
  • Open Access
1 Citations
2,867 Views
27 Pages

Deep Learning Architecture Reduction for fMRI Data

  • Ruben Alvarez-Gonzalez and
  • Andres Mendez-Vazquez

8 February 2022

In recent years, deep learning models have demonstrated an inherently better ability to tackle non-linear classification tasks, due to advances in deep learning architectures. However, much remains to be achieved, especially in designing deep convolu...

  • Article
  • Open Access
328 Views
19 Pages

2 February 2026

Reliable object detection in marine radar imagery is critical for maritime situational awareness, collision avoidance, and autonomous navigation. However, it remains challenging due to sea clutter, small targets, and interference from fixed navigatio...

  • Article
  • Open Access
1,284 Views
19 Pages

Delineation of Dynamic Coastal Boundaries in South Africa from Hyper-Temporal Sentinel-2 Imagery

  • Mariel Bessinger,
  • Melanie Lück-Vogel,
  • Andrew Luke Skowno and
  • Ferozah Conrad

29 July 2025

The mapping and monitoring of coastal regions are critical to ensure their sustainable use and viability in the long term. Delineation of coastlines is becoming increasingly important in the light of climate change and rising sea levels. However, man...

  • Article
  • Open Access
55 Citations
8,489 Views
33 Pages

A Kernel-Driven BRDF Approach to Correct Airborne Hyperspectral Imagery over Forested Areas with Rugged Topography

  • Wen Jia,
  • Yong Pang,
  • Riccardo Tortini,
  • Daniel Schläpfer,
  • Zengyuan Li and
  • Jean-Louis Roujean

29 January 2020

Airborne hyper-spectral imaging has been proven to be an efficient means to provide new insights for the retrieval of biophysical variables. However, quantitative estimates of unbiased information derived from airborne hyperspectral measurements prim...

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