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363 Results Found

  • Article
  • Open Access
1 Citations
1,813 Views
16 Pages

Fast and Accurate Visual Tracking with Group Convolution and Pixel-Level Correlation

  • Liduo Liu,
  • Yongji Long,
  • Guoning Li,
  • Ting Nie,
  • Chengcheng Zhang and
  • Bin He

29 August 2023

Visual object trackers based on Siamese networks perform well in visual object tracking (VOT); however, degradation of the tracking accuracy occurs when the target has fast motion, large-scale changes, and occlusion. In this study, in order to solve...

  • Article
  • Open Access
27 Citations
5,410 Views
17 Pages

29 June 2017

Determining vegetation variation and its influential factors in a desert steppe under the impacts of climate change and human activities is crucial and meaningful for improving the understanding of desertification and taking targeted measures in ecol...

  • Article
  • Open Access
10 Citations
3,123 Views
23 Pages

29 August 2023

Convolutional neural networks (CNNs) and graph convolutional networks (GCNs) have led to promising advancements in hyperspectral image (HSI) classification; however, traditional CNNs with fixed square convolution kernels are insufficiently flexible t...

  • Article
  • Open Access
394 Views
26 Pages

1 December 2025

Images, as carriers of rich information, are generated, stored, and transmitted in various forms across diverse scenarios. It has become an important issue in the field of information security today to encrypt images to ensure information security. T...

  • Article
  • Open Access
1 Citations
810 Views
14 Pages

Dual Attention Equivariant Network for Weakly Supervised Semantic Segmentation

  • Guanglun Huang,
  • Zhaohao Zheng,
  • Jun Li,
  • Minghe Zhang,
  • Jianming Liu and
  • Li Zhang

9 June 2025

Image-level weakly supervised semantic segmentation is a challenging problem in computer vision and has gained a lot of attention in recent years. Most existing models utilize class activation mapping (CAM) to generate initial pseudo-labels for each...

  • Article
  • Open Access
9 Citations
4,781 Views
17 Pages

8 February 2022

Digital image correlation techniques are well known for motion extraction from video images. Following a two-stage approach, the pixel-level displacement is first estimated by maximizing the cross-correlation between two images, then the estimation i...

  • Review
  • Open Access
18 Citations
3,861 Views
15 Pages

15 February 2023

Recently, the deep learning technology has been adopted in the study of traditional village landscape. More precisely, it’s usually used to explore the representation of cultural heritage and the diversity of heritage information. In this study...

  • Article
  • Open Access
5 Citations
3,095 Views
23 Pages

12 February 2022

The AVHRR aerosol optical depth (AOD) is inverted from measured reflectances in the red band using a statistical correlation of surface reflectance with mid-infrared channel reflectances and a modelling climatology of the aerosol type. For such a sen...

  • Article
  • Open Access
77 Citations
4,231 Views
15 Pages

11 September 2020

To ensure the security of digital images during transmission and storage, an efficient and secure chaos-based color image encryption scheme using bit-level permutation is proposed. Our proposed image encryption algorithm belongs to symmetric cryptogr...

  • Article
  • Open Access
35 Citations
3,602 Views
18 Pages

5 September 2023

Confusion, diffusion, and encryption keys affect the quality of image encryption. This research proposes combining bit- and pixel-level permutation and substitution methods based on three advanced chaotic logistic map methods. The three chaotic metho...

  • Article
  • Open Access
9 Citations
2,753 Views
24 Pages

Rapid estimation of above-ground biomass (AGB) with high accuracy is essential for monitoring crop growth status and predicting crop yield. Recently, remote sensing techniques using unmanned aerial systems (UASs) have exhibited great potential in obt...

  • Article
  • Open Access
113 Citations
10,342 Views
20 Pages

GDP Spatialization and Economic Differences in South China Based on NPP-VIIRS Nighttime Light Imagery

  • Min Zhao,
  • Weiming Cheng,
  • Chenghu Zhou,
  • Manchun Li,
  • Nan Wang and
  • Qiangyi Liu

1 July 2017

Accurate data on gross domestic product (GDP) at pixel level are needed to understand the dynamics of regional economies. GDP spatialization is the basis of quantitative analysis on economic diversities of different administrative divisions and areas...

  • Article
  • Open Access
25 Citations
6,285 Views
18 Pages

12 June 2021

In this paper, we propose a new approach for sub-pixel co-registration based on Fourier phase correlation combined with the Harris detector. Due to the limitation of the standard phase correlation method to achieve only pixel-level accuracy, another...

  • Article
  • Open Access
4 Citations
2,178 Views
16 Pages

Decision fusion plays a crucial role in achieving a cohesive and unified outcome by merging diverse perspectives. Within the realm of remote sensing classification, these methodologies become indispensable when synthesizing data from multiple sensors...

  • Article
  • Open Access
15 Citations
7,108 Views
26 Pages

A Spatial Analysis of the Relationship between Vegetation and Poverty

  • Teddy Dawson,
  • J.S. Onésimo Sandoval,
  • Vasit Sagan and
  • Thomas Crawford

The goal of this paper was to investigate poverty and inequities that are associated with vegetation. First, we performed a pixel-level linear regression on time-series and Normalized Difference Vegetation Index (NDVI) for 72 United States (U.S.) cit...

  • Article
  • Open Access
40 Citations
9,643 Views
18 Pages

Can We Go Beyond Burned Area in the Assessment of Global Remote Sensing Products with Fire Patch Metrics?

  • Joana M. P. Nogueira,
  • Julien Ruffault,
  • Emilio Chuvieco and
  • Florent Mouillot

25 December 2016

Global burned area (BA) datasets from satellite Earth observations provide information for carbon emission and for Dynamic Global Vegetation Model (DGVM) benchmarking. Fire patch identification from pixel-level information recently emerged as an addi...

  • Article
  • Open Access
605 Views
26 Pages

11 October 2025

Spatializing crop yield statistical data with administrative divisions as the basic unit helps reveal the spatial distribution characteristics of crop yield and provides necessary spatial information to support field management and government decisio...

  • Article
  • Open Access
28 Citations
3,571 Views
30 Pages

The advent of quantum computers could enable the resolution of complex computational problems that conventional cryptographic protocols find challenging. As a result, the formidable computing capabilities of quantum computers may render all present-d...

  • Article
  • Open Access
4 Citations
2,079 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
12 Citations
6,193 Views
29 Pages

5 December 2017

Mars topographic data, such as digital orthophoto maps (DOMs) and digital elevation models (DEMs) are essential to planetary science and exploration missions. The main objective of our study is to generate a higher resolution DEM using the Mars Expre...

  • Proceeding Paper
  • Open Access
10 Citations
4,473 Views
6 Pages

Evaluation of Geospatial Tools for Generating Accurate Glacier Velocity Maps from Optical Remote Sensing Data

  • Shridhar D. Jawak,
  • Shubhang Kumar,
  • Alvarinho J. Luis,
  • Mustansir Bartanwala,
  • Shravan Tummala and
  • Arvind C. Pandey

22 March 2018

Changes in the dynamics of glaciers must be assessed, as they are important for sea level changes. Glacier velocity is the most important parameter used in glacier dynamics studies. Various image matching techniques, which are implemented in differen...

  • Article
  • Open Access
39 Citations
4,104 Views
19 Pages

A Novel Grayscale Image Encryption Scheme Based on the Block-Level Swapping of Pixels and the Chaotic System

  • Muhammad Hanif,
  • Nadeem Iqbal,
  • Fida Ur Rahman,
  • Muhammad Adnan Khan,
  • Taher M. Ghazal,
  • Sagheer Abbas,
  • Munir Ahmad,
  • Hussam Al Hamadi and
  • Chan Yeob Yeun

19 August 2022

Hundreds of image encryption schemes have been conducted (as the literature review indicates). The majority of these schemes use pixels as building blocks for confusion and diffusion operations. Pixel-level operations are time-consuming and, thus, no...

  • Article
  • Open Access
4 Citations
3,131 Views
18 Pages

8 May 2023

The Visible Infrared Imaging Radiometer Suite Day/Night Band (VIIRS/DNB) nighttime light data is a powerful remote sensing data source. However, due to stray light pollution, there is a lack of VIIRS data in mid-high latitudes during the summer, resu...

  • Article
  • Open Access
7 Citations
2,796 Views
21 Pages

An Effective Framework Using Spatial Correlation and Extreme Learning Machine for Moving Cast Shadow Detection

  • Yugen Yi,
  • Jiangyan Dai,
  • Chengduan Wang,
  • Jinkui Hou,
  • Huihui Zhang,
  • Yunlong Liu and
  • Jin Gao

22 November 2019

Moving cast shadows of moving objects significantly degrade the performance of many high-level computer vision applications such as object tracking, object classification, behavior recognition and scene interpretation. Because they possess similar mo...

  • Communication
  • Open Access
2 Citations
5,527 Views
14 Pages

3 May 2021

We propose a deep-learning algorithm that directly compensates for luminance degradation because of the deterioration of organic light-emitting diode (OLED) devices to address the burn-in phenomenon of OLED displays. Conventional compensation circuit...

  • Article
  • Open Access
5 Citations
1,734 Views
22 Pages

17 January 2025

This paper skillfully incorporates the memristor model into a chaotic system, creating a two-dimensional (2D) hyperchaotic map. The system’s exceptional chaotic performance is verified through methods such as phase diagrams, bifurcation diagram...

  • Article
  • Open Access
1 Citations
1,681 Views
18 Pages

Evaluating Agreement Between Global Satellite Data Products for Forest Monitoring in Madagascar

  • Oladimeji Mudele,
  • Marissa L. Childs,
  • Jayden Personnat and
  • Christopher D. Golden

22 April 2025

Producing high-quality local land cover data can be cost-prohibitive, leaving gaps in reliable estimates of forest cover and loss for environmental policy and planning. Remote sensing data (RSD) offer accessible, globally consistent layers for forest...

  • Article
  • Open Access
2 Citations
1,787 Views
16 Pages

20 November 2024

For binocular stereo matching techniques, the most advanced method currently is using an iterative structure based on GRUs. Methods in this class have shown high performance on both high-resolution images and standard benchmarks. However, simply repl...

  • Article
  • Open Access
24 Citations
4,333 Views
16 Pages

29 May 2023

In order to increase the security and robustness of quantum images, this study combined the quantum DNA codec with quantum Hilbert scrambling to offer an enhanced quantum image encryption technique. Initially, to accomplish pixel-level diffusion and...

  • Article
  • Open Access
4 Citations
2,771 Views
16 Pages

16 October 2024

Wetlands play a vital role in regulating the global carbon cycle, providing biodiversity, and reducing flood risks. These functions maintain ecological balance and ensure human well-being. Timely, accurate monitoring of wetlands is essential, not onl...

  • Article
  • Open Access
30 Citations
5,693 Views
16 Pages

6 February 2018

The accurate mapping of impervious surfaces is of key significance for various urban applications. Usually, traditional methods extract the proportion image of impervious surfaces from remote sensing images; however, the proportion image cannot speci...

  • Article
  • Open Access
30 Citations
4,555 Views
31 Pages

Estimation of Changes of Forest Structural Attributes at Three Different Spatial Aggregation Levels in Northern California using Multitemporal LiDAR

  • Francisco Mauro,
  • Martin Ritchie,
  • Brian Wing,
  • Bryce Frank,
  • Vicente Monleon,
  • Hailemariam Temesgen and
  • Andrew Hudak

16 April 2019

Accurate estimates of growth and structural changes are key for forest management tasks such as determination of optimal rotation times, optimal rotation times, site indices and for identifying areas experiencing difficulties to regenerate. Estimatio...

  • Article
  • Open Access
12 Citations
5,248 Views
20 Pages

10 August 2019

Efficient and robust evaluation of kernel processing from corn silage is an important indicator to a farmer to determine the quality of their harvested crop. Current methods are cumbersome to conduct and take between hours to days. We present the ado...

  • Article
  • Open Access
38 Citations
6,719 Views
12 Pages

Automatic Segmentation and Counting of Aphid Nymphs on Leaves Using Convolutional Neural Networks

  • Jian Chen,
  • Yangyang Fan,
  • Tao Wang,
  • Chu Zhang,
  • Zhengjun Qiu and
  • Yong He

The presence of pests is one of the main problems in crop production, and obtaining reliable statistics of pest infestation is essential for pest management. Detection of pests should be automated because human monitoring of pests is time-consuming a...

  • Article
  • Open Access
2,731 Views
15 Pages

16 July 2025

This study investigates the spatial relationship between population distribution and tree cover loss in Nepal from 2000 to 2020, using satellite-based forest cover and population data along with statistical and geospatial analysis. Two statistical me...

  • Article
  • Open Access
2 Citations
1,248 Views
16 Pages

22 October 2024

Winter wheat is one of the major crops for global food security. Accurate statistics of its planting area play a crucial role in agricultural policy formulation and resource management. However, the existing semantic segmentation methods for remote s...

  • Article
  • Open Access
1 Citations
1,558 Views
26 Pages

Development of a Novel One-Dimensional Nested U-Net Cloud-Classification Model (1D-CloudNet)

  • Minjie Deng,
  • Yong Han,
  • Yan Liu,
  • Li Dong,
  • Qicheng Zhou,
  • Yurong Zhang,
  • Ximing Deng and
  • Tianwei Lu

3 February 2025

Cloud classification is fundamental to advancing climate research and improving weather forecasting. However, existing cloud classification models are constrained by several limitations. For instance, simple statistical methods depend heavily on prio...

  • Article
  • Open Access
1,093 Views
15 Pages

1 October 2025

To break through the bottleneck in the mapping of the mechanoluminescent (ML) intensity field to the strain field, a quantification method for full-field strain measurement based on pixel-level data fusion is proposed, integrating ML imaging with dig...

  • Article
  • Open Access
5 Citations
2,270 Views
17 Pages

29 April 2023

With the rapid development of marine business, the intelligent detection of ship targets has become the key to marine safety. However, it is difficult to accurately detect maritime infrared targets due to severe sea clutter interference in strong win...

  • Article
  • Open Access
413 Views
27 Pages

2 December 2025

Semantic change detection has become a key technology for monitoring the evolution of land cover and land use categories at the semantic level. However, existing methods often lack effective information interaction and fail to capture changes at mult...

  • Article
  • Open Access
28 Citations
4,553 Views
23 Pages

1 June 2022

The rapid and accurate damage assessment of buildings plays a critical role in disaster response. Based on pairs of pre- and post-disaster remote sensing images, effective building damage level assessment can be conducted. However, most existing meth...

  • Technical Note
  • Open Access
2 Citations
2,686 Views
18 Pages

Detection of Banana Diseases Based on Landsat-8 Data and Machine Learning

  • Renata Retkute,
  • Kathleen S. Crew,
  • John E. Thomas and
  • Christopher A. Gilligan

5 July 2025

Banana is an important cash and food crop worldwide. Recent outbreaks of banana diseases are threatening the global banana industry and smallholder livelihoods. Remote sensing data offer the potential to detect the presence of disease, but formal ana...

  • Article
  • Open Access
54 Citations
13,897 Views
31 Pages

1 November 2018

Developing countries often have poor monitoring and reporting of weather and crop health, leading to slow responses to droughts and food shortages. Here, I develop satellite analysis methods and software tools to predict crop yields two to four month...

  • Article
  • Open Access
4 Citations
2,127 Views
17 Pages

LCAS-DetNet: A Ship Target Detection Network for Synthetic Aperture Radar Images

  • Junlin Liu,
  • Dingyi Liao,
  • Xianyao Wang,
  • Jun Li,
  • Bing Yang and
  • Guanyu Chen

20 June 2024

Monitoring ships on water surfaces encounters obstacles such as weather conditions, sunlight, and water ripples, posing significant challenges in accurately detecting target ships in real time. Synthetic Aperture Radar (SAR) offers a viable solution...

  • Article
  • Open Access
3 Citations
2,069 Views
21 Pages

A Robust Tie-Points Matching Method with Regional Feature Representation for Synthetic Aperture Radar Images

  • Yifan Zhang,
  • Yan Zhu,
  • Liqun Liu,
  • Xun Du,
  • Kun Han,
  • Junhui Wu,
  • Zhiqiang Li,
  • Lingshuai Kong and
  • Qiwei Lin

8 July 2024

The precise tie-points (TPs) on synthetic aperture radar (SAR) images are a critical cornerstone in the global digital elevation model (DEM) and digital ortho map (DOM) production process. While there are abundant studies on SAR TPs matching, improve...

  • Article
  • Open Access
4 Citations
2,993 Views
21 Pages

19 July 2023

In this research, we present the Spatial-Aware Transformer (SAT), an enhanced implementation of the Swin Transformer module, purposed to augment the global modeling capabilities of existing transformer segmentation mechanisms within remote sensing. T...

  • Article
  • Open Access
26 Citations
4,814 Views
20 Pages

The Effect of Forest Mask Quality in the Wall-to-Wall Estimation of Growing Stock Volume

  • Elia Vangi,
  • Giovanni D’Amico,
  • Saverio Francini,
  • Francesca Giannetti,
  • Bruno Lasserre,
  • Marco Marchetti,
  • Ronald E. McRoberts and
  • Gherardo Chirici

9 March 2021

Information about forest cover and its characteristics are essential in national and international forest inventories, monitoring programs, and reporting activities. Two of the most common forest variables needed to support sustainable forest managem...

  • Article
  • Open Access
13 Citations
3,233 Views
24 Pages

22 January 2021

The presence of speckles and the absence of discriminative features make it difficult for the pixel-level polarimetric synthetic aperture radar (PolSAR) image classification to achieve more accurate and coherent interpretation results, especially in...

  • Article
  • Open Access
3,196 Views
22 Pages

Estimating Fire Radiative Energy Density with Repeat-Pass Aerial Thermal-Infrared Imaging of Actively Progressing Wildfires

  • Alexander J. McFadden,
  • Douglas A. Stow,
  • Philip J. Riggan,
  • Robert Tissell,
  • John O’Leary and
  • Henry Scharf

23 May 2024

Studies on estimating cumulative fire intensity from spreading wildland fires based on fire radiative energy density (FRED) have primarily been conducted through controlled experiments. The objective of this study was to assess the potential for esti...

  • Article
  • Open Access
15 Citations
5,024 Views
15 Pages

17 May 2018

For time-series analysis using very-high-resolution (VHR) multi-temporal satellite images, both accurate georegistration to the map coordinates and subpixel-level co-registration among the images should be conducted. However, applying well-known matc...

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