Geng Sun

ORCID: 0000-0001-6713-5151
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About
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Research Areas
  • Kruppel-like factors research
  • Remote-Sensing Image Classification
  • Cancer-related gene regulation
  • Numerical methods for differential equations
  • Advanced Numerical Methods in Computational Mathematics
  • Domain Adaptation and Few-Shot Learning
  • Epigenetics and DNA Methylation
  • Remote Sensing and LiDAR Applications
  • Advanced Image and Video Retrieval Techniques
  • Myeloproliferative Neoplasms: Diagnosis and Treatment
  • Differential Equations and Numerical Methods
  • Remote Sensing in Agriculture
  • Matrix Theory and Algorithms
  • Remote Sensing and Land Use
  • Automated Road and Building Extraction
  • Electromagnetic Simulation and Numerical Methods
  • Robotics and Sensor-Based Localization
  • Advanced Computational Techniques and Applications
  • Urban Green Space and Health
  • Advanced Neural Network Applications
  • Robotic Path Planning Algorithms
  • Indoor and Outdoor Localization Technologies
  • Soil Carbon and Nitrogen Dynamics
  • Transplantation: Methods and Outcomes
  • Genetic Syndromes and Imprinting

Central South University
2020-2025

BGI Group (China)
2023-2024

BGI Genomics
2023-2024

Bozhou People's Hospital
2024

Shanghai Electric (China)
2024

Anhui Normal University
2024

China Institute of Water Resources and Hydropower Research
2023

Chongqing University of Science and Technology
2023

Jinling Institute of Technology
2023

Chinese Academy of Sciences
2002-2022

Semantic segmentation is a key technique involved in automatic interpretation of high-resolution remote sensing (HRS) imagery and has drawn much attention the community. Deep convolutional neural networks (DCNNs) have been successfully applied to HRS semantic task due their hierarchical representation ability. However, heavy dependence on large number training data with dense annotation sensitiveness variation distribution severely restrict potential application DCNNs for imagery. This study...

10.1109/tgrs.2023.3243042 article EN IEEE Transactions on Geoscience and Remote Sensing 2023-01-01

Semantic segmentation is an important task of analysis and understanding high-resolution remote sensing images (HRSIs). The deep convolutional neural network (DCNN)-based model shows their excellent performance in image semantic segmentation. Most the existing HRSI methods are only designed for a very limited data domain, that is, training test from same dataset. accuracy drops sharply once trained on certain dataset used cross-domain prediction due to difference feature distribution To this...

10.1109/tgrs.2021.3140108 article EN IEEE Transactions on Geoscience and Remote Sensing 2022-01-01

The lack of pixel-level labeling limits the practicality deep learning-based building semantic segmentation. Weakly supervised segmentation based on image-level results in incomplete object regions and missing boundary information. This paper proposes a weakly method for detection. proposed takes label as supervision information classification network that combines superpixel pooling multi-scale feature fusion structures. main advantage strategy is its ability to improve intactness accuracy...

10.3390/rs12061049 article EN cc-by Remote Sensing 2020-03-24

Deep learning-based semantic segmentation has been widely applied for building extraction. However, due to the domain gap, extraction of in high-resolution remote sensing imagery is difficult when model trained on a source dataset directly used test target data. Considering that humans can retrieve memory deal with correlative tasks different domains, mechanisms have developed effectively assist cross-domain feature whether achieve satisfactory result or not highly depends premise relevant...

10.1109/tgrs.2023.3262576 article EN IEEE Transactions on Geoscience and Remote Sensing 2023-01-01

Accurate information on grassland above-ground biomass (AGB) is critical to better understanding the carbon cycle and conserve resources. As a climate-sensitive key ecological function area, it important accurately estimate AGB of Tibetan Plateau. Sentinel-2 (S2) images have advantages in reducing mixed pixels scale effect for remote sensing, while data volume correspondingly larger. In order improve estimation accuracy required improving computational efficiency, this study used Recursive...

10.3390/rs14215321 article EN cc-by Remote Sensing 2022-10-24

Due to the problem of complex aggregate stacking and adhesion, current construction site grade detection relies on traditional screening methods single digital image processing technology, which causes inefficiency segmentation identification difficulties. This has become a technical bottleneck in achieving automatic mixed detection. study constructs noncontact testing platform for gradation based self-developed sampling device improved deep learning algorithms, enables rapid gradation....

10.1016/j.measurement.2023.112634 article EN cc-by-nc-nd Measurement 2023-02-25

When the buildings themselves or environments they are located in changes, it poses a cross-domain problem for building extraction. Since semantics of same category should be consistent across domains, memory mechanism can used to drive models capture it. A key prerequisite satisfactory is that content highly task-relevant, i.e., represents domain-invariant semantic features as much possible. It worth noting images from different domains have diverse styles, which interfere with...

10.1109/tgrs.2024.3387491 article EN IEEE Transactions on Geoscience and Remote Sensing 2024-01-01

Security robots often operate in environments characterized by low light and smoke, where millimeter-wave radar proves effective. However, the radar's point cloud is sparse noisy, potentially leading to positioning failure when employing matching. In this paper, we propose a localization strategy for security based on millimeter wave radar. The position of robot deduced clustering tracking cloud. addition, radial velocity was used design an adaptive threshold, so that targets two frames data...

10.1109/jsen.2024.3401737 article EN IEEE Sensors Journal 2024-05-22

In this article we consider partitioned Runge-Kutta (PRK) methods for Hamiltonian partial differential equations (PDEs) and present some sufficient conditions multi-symplecticity of PRK PDEs.

10.1090/s0025-5718-05-01793-x article EN Mathematics of Computation 2005-09-29

In building change detection task, factors such as phenological changes, illumination and registration errors will cause unchanged areas in remote sensing images to have obvious differences pixels, which lead pseudochanges results. Existing methods focus on the information of multi-temporal images, ignoring exploration pseudochange problems. Therefore, feature-output space dual-alignment (FODA) method is proposed reduce negative effect problem by paying attention relationship between...

10.1109/jstars.2021.3103429 article EN cc-by IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2021-01-01

The authors present a probabilistically complete planning approach for handling the lift path problem without prior picking/placing configurations. Firstly, this research introduces concept of crane location regions (CLRs) to represent constraints that pose lifted object imposes on crane's at picking or placing moment. And then develop rapidly-exploring random trees (RRT)-based planner called bidirectional multiple RRTs (BiMRRTs), which simultaneously gradually grows from pose-constrained...

10.1061/(asce)cp.1943-5487.0000437 article EN Journal of Computing in Civil Engineering 2014-10-16

Few-shot remote sensing scene classification (FSRSSC) has been used for new class recognition in the presence of a limited number labeled samples. The representation vector (prototype) categories obtained using images only confronts some challenges, such as insufficient generalization when samples is too small. To address this problem, we propose FSRSSC method based on prototype networks, named CNSPN, which combines semantic information names (name categories, aircraft, harbor, and bridge)....

10.1109/tgrs.2022.3219726 article EN IEEE Transactions on Geoscience and Remote Sensing 2022-01-01

The feature representation capability of the object detection model is considerably reduced if available training samples are few-shot. challenges arbitrary orientation and complex background ground objects universal in very high spatial resolution remote sensing imageries, resulting massive difficulty on few-shot task. However, existing methods for not explored terms capabilities images. To solve these issues, we propose a method incorporating multiscale contrastive learning. First, our...

10.1109/tgrs.2022.3229041 article EN IEEE Transactions on Geoscience and Remote Sensing 2022-01-01

A high-quality built environment is important for human health and well-being. Assessing the quality of urban can provide planners managers with decision-making renewal to improve resident satisfaction. Many studies evaluate from perspective street scenes, but it difficult street-view data cover every area its update frequency low, which cannot meet requirement built-environment assessment under rapid development. Earth-observation have advantages wide coverage, high frequency, good...

10.3390/rs15051436 article EN cc-by Remote Sensing 2023-03-03

Urbanization leads to changes in surface landscapes, such as the increase built-up areas and decrease natural elements, resulting local land temperature, which often create unusually hot weather affect livability, especially for mid- low-latitude cities. Therefore, optimizing urban landscapes adjusting thermal environment is important improve comfort achieve sustainable development. Existing studies on have considered mainly horizontal uses/land covers but ignored their elevation. This study...

10.3390/su151612312 article EN Sustainability 2023-08-12

Road extraction from high-resolution remote sensing images is a critical task in image understanding and analysis, yet it poses significant challenges because of road occlusions caused by vegetation, buildings, shadows. Deep convolutional neural networks have emerged as the leading approach for their exceptional feature representation capabilities. However, existing methods often yield incomplete disjointed results. To address this issue, we propose CR-HR-RoadNet, novel network that...

10.3390/rs15174177 article EN cc-by Remote Sensing 2023-08-25

Semantic segmentation of high-resolution remote sensing imagery (HRSI) is a major task in analysis. Although deep convolutional neural network (DCNN)-based semantic models have powerful capacity pixel-wise classification, they still face challenge obtaining intersemantic continuity and extraboundary accuracy because the geo-object's characteristic feature diverse scales various distributions HRSI. Inspired by transfer learning, this study, we propose an efficient framework named SMAF-Net,...

10.1109/lgrs.2020.3011151 article EN publisher-specific-oa IEEE Geoscience and Remote Sensing Letters 2020-08-03

Semantic segmentation is one of the hot topics in field remote sensing image intelligent analysis. Deep convolutional neural network (DCNN) has become a mainstream technology semantic due to its powerful feature representation. The emergence high-resolution imagery provided massive detail information, but difficulties and challenges remain "feature representation fine geo objects" distinction easily confusing objects." To this end, article focuses on distinguishing features geo-object...

10.1109/jstars.2021.3053067 article EN cc-by-nc-nd IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2021-01-01
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