A5111496535- Spectroscopy and Chemometric Analyses
- Remote Sensing in Agriculture
- Remote Sensing and Land Use
- Graph Theory and Algorithms
- Land Use and Ecosystem Services
- Graph theory and applications
- Advanced Image and Video Retrieval Techniques
- Remote Sensing and LiDAR Applications
- Image Retrieval and Classification Techniques
- Image and Signal Denoising Methods
- Advanced Image Fusion Techniques
- Synthesis and Properties of Aromatic Compounds
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advanced Chemical Sensor Technologies
- Leaf Properties and Growth Measurement
- Matrix Theory and Algorithms
- Remote-Sensing Image Classification
- Plant Pathogens and Fungal Diseases
- Graph Labeling and Dimension Problems
- Water Quality Monitoring and Analysis
- Powdery Mildew Fungal Diseases
- Quantum and electron transport phenomena
- Smart Agriculture and AI
- Markov Chains and Monte Carlo Methods
- Plant Disease Management Techniques
Anhui University
2014-2024
Chengdu Medical College
2024
Detection and monitoring are the first essential step for effective management of sheath blight (ShB), a major disease in rice worldwide. Unmanned aerial systems have high potential being utilized to improve this detection process since they can reduce time needed scouting at field scale, affordable user-friendly operation. In study, commercialized quadrotor unmanned vehicle (UAV), equipped with digital multispectral cameras, was used capture imagery data research plots 67 cultivars elite...
Land cover plays an important role in the climate and biogeochemistry of Earth system. It is great significance to produce evaluate global land (GLC) data when applying practice at a specific spatial scale. The objective this study validate consistency Moderate Resolution Imaging Spectroradiometer (MODIS) product (MCD12Q1) provincial scale (Anhui Province, China) based on Chinese 30 m GLC (GlobeLand30). A harmonization method firstly used reclassify types between five classification schemes...
Soluble solid content (SSC), pH, and vitamin C (VC) are considered as key parameters for strawberry quality. Spectral, color, textural features from hyperspectral reflectance imaging of 400–1000 nm was to develop the non-destructive detection approaches SSC, VC strawberries by integrating various multivariate methods partial least-squares regression (PLSR), support vector regression, locally weighted (LWR). 120 were statistically analyzed facilitate partitioning data sets, which helped...
In this study, visible/near-infrared (Vis/NIR) hyperspectral imaging was used for the nondestructive detection of storage time strawberries. Storage calculated immediately after freshly picking. Support vector machine (SVM) with multiplicative scatter correction can differentiate strawberries different an accuracy 100%. Then, model developed by partial least square regression full-range spectra to predict a determination coefficient prediction (Rp2) 0.9999 and root-mean-square error (RMSEP)...
Graphs and Algorithms The Laplacian spread of a graph is defined to be the difference between largest eigenvalue second smallest matrix graph. In this paper, we show that star unique tree with maximal among all trees given order, path one minimal order.
The existence of clouds affects the interpretation and utilization remote sensing images. A thin cloud removal algorithm for cloud-contaminated images is proposed by combining a multidirectional dual tree complex wavelet transform (M-DTCWT) with domain adaptation transfer least square support vector regression (T-LSSVR). First, M-DTCWT constructed using hourglass filter bank in combination DTCWT, which used to decompose into multiscale subbands. Then low-frequency subband coefficients...
Soybean and maize are important raw materials for the production of food livestock feed. Accurate mapping these two crops is great significance to crop management, yield estimation, crop-damage control. In this study, towns in Guoyang County, Anhui Province, China, were selected as study area, Sentinel-2 images adopted map distributions both 2019 growing season. The data obtained on August 18 (early pod-setting stage soybean) was determined be most applicable soybean by means...
Crop residue is an important component of farmland ecosystems, which great significance for increasing soil organic carbon, mitigating wind erosion and water conserving water. coverage (CRC) parameter to characterize the number distribution crop residues, also a key indicator conservation tillage. In this study, CRC wheat was taken as research object. Based on high-resolution GF-1 satellite remote sensing imagery from China, decision tree (DT), gradient boosting (GBDT), random forest (RF),...
Removal of cloud cover on the satellite remote sensing image can effectively improve availability images. For thin cover, support vector value contourlet transform is used to achieve multi-scale decomposition area Through enhancing coefficients high frequency and suppressing low frequency, removed. thick if areas multi-source or multi-temporal images do not overlap, multi-output regression learning method remove this kind clouds. If by using surrounding predict surface features overlapped...
Pesticide residue detection is a hot issue in the quality and safety of agricultural grains. A novel method for accurate pirimiphos-methyl residues wheat was developed using surface-enhanced Raman spectroscopy (SERS) chemometric methods. simple pretreatment conducted to extract from samples, highly effective gold nanorods were prepared SERS measurement. peaks assignment calculated density functional theory. The signal can be detected when concentrations extraction solution contaminated as...
Wheat (Triticum aestivum L.) is one of the three major cereals worldwide. The FusaHum graminearum Sehw., special fugus always damages wheat ear, and produces vomitoxin,is difficult to control prevent, seriously threatens health humans, animals China's food security. Currently, rapidly, accurately non-destructively diagnostic devices or systems for this disease have not been disclosed. In study, infected ears with different severities were picked up in key growth stages. diseased area ear was...
This paper suggests a thin cloud removing approach of color remote sensing image based on support vector machine in HSI model. The intensity component is decomposed multi-scale by using strong edge capture ability machine, and the coefficients different scales are obtained. Then abundant high frequency information obtained combining with directional filter bank. Reconstructed through enhancing suppressing low frequency. saturation processed exponential expand method, while hue invariant....
A generalized Bethe tree is a rooted for which the vertices in each level having equal degree. Let Bk be of k level, and let T r connected transitive graph on vertices. Then we obtain Bk?T from copies by appending roots to respectively. In this paper, give simple way characterize eigenvalues adjacency matrix A(Bk ? r) Laplacian L(Bk?T means symmetric tridiagonal matrices order k. We also present some structure properties Perron vectors A(Bk?T Fiedler L(Bk r). addition, results graphs.