Weihao Sun

ORCID: 0000-0002-2794-3215
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About
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Research Areas
  • Soil Carbon and Nitrogen Dynamics
  • UAV Applications and Optimization
  • Advanced Image and Video Retrieval Techniques
  • Soil and Water Nutrient Dynamics
  • Crop Yield and Soil Fertility
  • Plant responses to elevated CO2
  • Advanced Vision and Imaging
  • Robotics and Sensor-Based Localization
  • Generative Adversarial Networks and Image Synthesis
  • Evaluation Methods in Various Fields
  • Security in Wireless Sensor Networks
  • Vehicular Ad Hoc Networks (VANETs)
  • Leaf Properties and Growth Measurement
  • Molecular Communication and Nanonetworks
  • Esophageal Cancer Research and Treatment
  • Irrigation Practices and Water Management
  • Satellite Communication Systems
  • Advanced Computational Techniques and Applications
  • Radiomics and Machine Learning in Medical Imaging
  • Advanced Algorithms and Applications
  • Opportunistic and Delay-Tolerant Networks
  • Medical Imaging and Analysis
  • Indoor and Outdoor Localization Technologies
  • Smart Agriculture and AI
  • Context-Aware Activity Recognition Systems

PLA Army Engineering University
2018-2024

Northwest Institute of Eco-Environment and Resources
2024

University of Chinese Academy of Sciences
2024

Institute of Electronics
2024

Farmland Irrigation Research Institute
2021-2023

Ministry of Agriculture and Rural Affairs
2021-2023

Capital University of Economics and Business
2023

Chinese Academy of Agricultural Sciences
2021-2022

Southwest Jiaotong University
2020-2021

Qingdao Agricultural University
2021

Using deep learning techniques in image analysis is a dynamically emerging field. This study aims to use convolutional neural network (CNN), approach, automatically classify esophageal cancer (EC) and distinguish it from premalignant lesions.A total of 1,272 white-light images were adopted 748 subjects, including normal cases, lesions, cancerous lesions; 1,017 used train the CNN, another 255 examined evaluate CNN architecture. Our proposed structure consists two subnetworks (O-stream...

10.21037/atm.2020.03.24 article EN Annals of Translational Medicine 2020-04-01

The ability to decompose complex multi-object scenes into meaningful abstractions like objects is fundamental achieve higher-level cognition. Previous approaches for unsupervised object-oriented scene representation learning are either based on spatial-attention or scene-mixture and limited in scalability which a main obstacle towards modeling real-world scenes. In this paper, we propose generative latent variable model, called SPACE, that provides unified probabilistic framework combines...

10.48550/arxiv.2001.02407 preprint EN other-oa arXiv (Cornell University) 2020-01-01

Abstract Human Activity Recognition (HAR) has had a diverse range of applications in various fields such as health, security and smart homes. Among different approaches HAR, WiFi-based solutions are getting popular since it solves the problem deployment cost, privacy concerns restriction applicable environment. In this paper, we propose human activity recognition system that can identify activities via channel state information from WiFi devices. A special deep learning framework, Long...

10.1088/1742-6596/1883/1/012139 article EN Journal of Physics Conference Series 2021-04-01

Low temperature and soil salinization during cotton sowing seedling adversely affect productivity. Exogenous melatonin (MT) can alleviate the damage caused to plants under non-biological stress; thus, applying MT is a means improve growth condition of crops stress. However, achieving this goal requires thorough understanding physiological regulatory mechanisms on seedlings low salinity This study could bring new knowledge physio-biochemical that tolerance combined effects salt stress using...

10.3390/plants12213730 article EN cc-by Plants 2023-10-31

Nowadays, Unmanned Aerial Vehicles (UAVs) have received growing popularity in the Internet-of-Things (IoT) which often deploys many sensors a relatively wide region. Since battery capacity is limited, cannot transmit over long distance. It necessary for designing efficient sensor data collection mechanisms to prolong lifetime of IoT and enhance efficiency. In this paper, we consider UAV-enabled scenario, where multiple heterogeneous UAVs with different energy constraints are employed collect...

10.3390/s19224884 article EN cc-by Sensors 2019-11-08

Long−term excessive nitrogen fertilizer input has resulted in several environmental problems, including an increase N2O emissions and the aggravation of nitrate leaching; monitoring is crucial for maize with high yield. This study aimed to optimize amount applied by Climate−Smart Agriculture (CSA) so as continuously improve agricultural productivity reduce or eliminate much possible. Field experiments a completely randomized design were conducted examine effects six treatments (N application...

10.3390/w13233415 article EN Water 2021-12-03

In the North China Plain, drip irrigation is gradually used in winter wheat production, and improper management of water fertilizer aggravates risk crop instability groundwater pollution. A lysimeter experiment with three levels fertilization timing (T1 = beginning; T2 middle; T3 end cycle) two rates (W1 30 mm W2 20 mm) was carried out to investigate effects rate on soil NO3−-N distribution, development, yield, water–nitrogen usage efficiency wheat. The results indicated that, under...

10.3390/w14111780 article EN Water 2022-06-01

Highlights The proposed data enhancement method can be used for small-scale sets with rich sample image features. accuracy of the new model reaches 98.5%, which is better than traditional CNN method. Abstract : GoogLeNet offers far performance in identifying apple disease compared to methods. However, complexity relatively high. For small volumes data, does not achieve same as it large-scale data. We propose a identification using GoogLeNet’s inception module. adopts variety methods optimize...

10.13031/aea.14187 article EN Applied Engineering in Agriculture 2021-01-01

When doctors assess the liver reserve function of patients with cancer before hepatectomy, if assessment is not appropriate, are prone to postoperative failure(POLF). Child-Pugh most commonly used method for clinical evaluation, but this only relies on biochemical indicators, which may lead poor prediction. This paper aims evaluate imaging omics information using an effective machine learning scheme. The performance models including support vector (SVM), COP-Kmeans, MLP, SGD-S3VM, QN-S3VM...

10.1109/cac51589.2020.9326557 article EN 2020-11-06

In this study, to solve the low accuracy of multi-space-based sensor joint tracking in presence unknown noise characteristics, an adaptive multi-sensor algorithm (AMSJTA) is proposed. First, coordinate transformation from target object optical sensors considered, and observation vector-based measurement model established. Then, characteristics are assumed be white Gaussian noise, covariance matrix set as a constant. On premise, traditional iterative extended Kalman filter applied problem....

10.3390/s24113314 article EN cc-by Sensors 2024-05-22

Partial discharge (PD) surveillance constitutes a pivotal methodology for diagnosing insulation failures in electrical equipment. Enhancing comprehensively the precision of identifying PD anomalies Gas Insulated Switchgear (GIS) is paramount significance ensuring steady functioning power grids. This study introduces novel framework that integrates Phase-Resolved Graph Segmentation (PRPD-Grabcut) with tailored MobileNets-based Convolutional Neural Network (MCNN) to classify GIS-related...

10.21595/jme.2024.24274 article EN Journal of Measurements in Engineering 2024-11-04

10.1109/iccc62609.2024.10942060 article EN 2021 7th International Conference on Computer and Communications (ICCC) 2024-12-13

This paper studies the relay selection in wireless cooperative communication systems. Since high mobility of Unmanned Aerial Vehicles (UAVs) will lead to change link state, a algorithm based on position prediction is proposed this better study problem. First, Unscented Kalman Filter (UKF) used predict real-time location information each UAV, and information, it determined whether current UAV node needs be replaced. The predicted by UKF algorithm, which basis for determining Then, outage...

10.1109/icct50939.2020.9295726 article EN 2020-10-28

Image registration is a research hotspot in computer vision. Depending on the overlapping region between adjacent images, this technology can complete task of matching and superposition multiple images. In reality, getting highly accurate performance complex motion states meeting realtime requirement for high-resolution images simultaneously still challenge. It observed that occupies only 30% to 50% Meanwhile, points are centralized region. Thus, detecting contribute reducing time improving...

10.1109/cisp-bmei.2018.8633020 article EN 2021 14th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI) 2018-10-01

Excessive nitrogen application would deteriorate soil structure and increase greenhouse gas emission. We set up six treatments, i.e., N0, N120, N180, N240, N300and N360(nitrogen rates of 0, 120, 180, 240, 300 360 kg·hm-2, all straws returned into the field in situ) fertilizer experimental site to investigate effects different on N2O emission, water-filled porosity (WFPS), temperature, nitrate ammonium contents, composition stability water stable aggregates winter wheat filed 2018-2020. The...

10.13287/j.1001-9332.202111.024 article EN PubMed 2021-11-15

Spaceborne remote sensing data is one of the crucial sources in accurate measurement systems, which provides security for users to perform tasks practical applications. When BeiDou short-message communication (BDSMC) applied transmission spaceborne data, success rate and timeliness directly determine effectiveness data. However, BDSMC has several problems: a small amount transferred each time, process unreliable. To address these problems, this paper designs long message fragmentation...

10.1049/icp.2023.1861 article EN IET conference proceedings. 2023-09-19

With the rapid development of China's economy, cities are becoming more and prosperous, many lit up at night. However, when urban lighting exceeds a certain limit affects life residents, it becomes light pollution. In order to monitor prevent pollution, we first defined three kinds pollution accurately, constructed evaluation model for Shanghai based on ground-based satellite remote sensing technology sampling data, using advantages support vector machine robustness, can effectively avoid...

10.1117/12.3010427 article EN 2023-11-15

10.1109/iccc59590.2023.10507278 article EN 2021 7th International Conference on Computer and Communications (ICCC) 2023-12-08

Leaf nitrogen content (LNC) is an important factor reflecting the growth quality of plants. We estimated apple leaves using hyperspectral wavelength analysis differential spectrum, spectrum transformation, and vegetation index with different derivative gaps. then used characteristic wavelengths extracted via correlation coefficient method as input vectors to gradient boosting decision tree (GBDT) model for performed cross-validation optimize inversion parameters. analyzed results variables...

10.1155/2021/1030706 article EN Mathematical Problems in Engineering 2021-10-06
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