A5008417937- Remote Sensing and LiDAR Applications
- Remote Sensing in Agriculture
- Forest ecology and management
- Remote Sensing and Land Use
- Forest Ecology and Biodiversity Studies
- Planetary Science and Exploration
- 3D Surveying and Cultural Heritage
- Fire effects on ecosystems
- Land Use and Ecosystem Services
- Astro and Planetary Science
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Remote-Sensing Image Classification
- Species Distribution and Climate Change
- Forest Management and Policy
- Advanced Optical Sensing Technologies
- Plant Water Relations and Carbon Dynamics
- Spacecraft and Cryogenic Technologies
- Landslides and related hazards
- Tunneling and Rock Mechanics
- Cryospheric studies and observations
- Soil Geostatistics and Mapping
- Advanced Image Fusion Techniques
- Environmental Changes in China
- Soil Moisture and Remote Sensing
- Advanced MRI Techniques and Applications
Chinese Academy of Forestry
2016-2025
Institute of Forest Resource Information Techniques
2016-2025
Central South University
2012-2025
Agro-Environmental Protection Institute
2025
Ministry of Agriculture and Rural Affairs
2025
Jilin University
2025
China Academy of Space Technology
2017-2024
University of Glasgow
2024
State Forestry and Grassland Administration
2021-2024
University of Electronic Science and Technology of China
2024
The vertical extent of waveforms collected by the Geoscience Laser Altimeter System (onboard ICESat - Ice, Cloud, and land Elevation Satellite) increases as a function terrain slope footprint size (the area on ground that is illuminated laser). Over sloped terrain, returns from both canopy surfaces can occur at same elevation. As result, height waveform (waveform extent) insufficient to make estimates tree algorithms are needed capable retrieving information about itself. Early work this...
We describe the design, implementation and performance of a novel airborne system, which integrates commercial waveform LiDAR, CCD (Charge-Coupled Device) camera hyperspectral sensors into common platform system. CAF’s (The Chinese Academy Forestry) LiCHy (LiDAR, Hyperspectral) Airborne Observation System is unique system that permits simultaneous measurements vegetation vertical structure, horizontal pattern, foliar spectra from different view angles at very high spatial resolution (~1 m)...
Chang'e-5 explorer successfully acquired lunar regolith core samples from depths of greater than 1 m surface. This study analyzed the drilling process based on telemetry data, image information, and returned to optimize sampling device design enhance understanding regolith. In particular, a prediction method for projected path local terrain fitting dip angle was proposed flight events recorded during information before, during, after sampling. The results revealed that approximately 2.3°,...
ICESat-2 (Ice, Cloud, and Land Elevation Satellite-2) was launched in 2018 with a photon-counting LiDAR (Light Detection Ranging) system, ATLAS (Advanced Topographic Laser Altimeter System). It is collecting massive earth elevation data all over the world, which has shown potential of large-scale forest monitoring. However, energy emitted by system low, received signals are easily affected noise. Accurate classification photons an important step for parameter retrieval. Given limitations...
Accurate estimation of forest terrain and canopy height is crucial for timely understanding growth. Gao Fen-7 (GF-7) Satellite China's first sub-meter-level three-dimensional (3D) mapping satellite civilian use, which was equipped with a two-line-array stereo camera laser altimeter system that can provide images full waveform LiDAR data simultaneously. Most the existing studies have concentrated on evaluating accuracy GF-7 topographic survey in bare land, but few in-depth studied its ability...
Identifying the spatiotemporal distributions and phenotypic characteristics of understory saplings is beneficial in exploring internal mechanisms plant regeneration providing technical assistances for continues cover forest management. However, it challenging to detect using 2-dimensional (2D) spectral information produced by conventional optical remotely sensed data. This study proposed an automatic method regenerated based on 3D structural from aerial laser scanning (ALS) By delineating...
The mussel byssus system, comprising the adhesive plaque, distal thread, and proximal plays a crucial role in survival of marine mussels amongst ocean waves.
Ultrahigh-field human spine RF transceiver coil arrays face daunting technical challenges in achieving large imaging coverage with sufficient B(1) penetration and sensitivity, attaining robust decoupling among elements. In this paper, for ultrahigh field were built studied. Transceiver loop-shaped microstrip transmission line designed, fabricated, tested 7-tesla (7T) MRI. With the proposed adjustable inductive technique, isolation between adjacent elements is easily addressed. Preliminary...
AbstractThe Geoscience Laser Altimeter System (GLAS), a spaceborne light detection and ranging (lidar) sensor, has acquired over 250 million lidar observations forests globally, an unprecedented dataset of vegetation height information. To be useful, GLAS must calibrated to measurements used in forestry inventory ecology. Airborne discrete return (DRL) can characterize terrain surfaces detail, but its utility as calibration data for is limited by the lack direct relationship between canopy...
Airborne hyper-spectral imaging has been proven to be an efficient means provide new insights for the retrieval of biophysical variables. However, quantitative estimates unbiased information derived from airborne hyperspectral measurements primarily require a correction anisotropic scattering properties land surface depicted by bidirectional reflectance distribution function (BRDF). Hitherto, angular BRDF methods rarely combined viewing-illumination geometry and topographic achieve...
The detection of individual trees in a larch plantation could improve the management efficiency and production prediction. This study introduced two-stage tree crown (ITC) segmentation method for airborne light ranging (LiDAR) point clouds, focusing on forests with different stem densities. consists region growing morphology segmentation, which combines advantages characteristics detailed structures crowns. framework comprises five steps: (1) determination initial dominant segments using...
This paper proposes a method to classify individual tree species groups based on segmentation and crown-level spectrum extraction (“crown-based ITC” for abbr.) in natural mixed forest of Northeast China, compares with the pixel-based classification segment summarization results (“pixel-based abbr.). Tree is basic factor management, it traditionally identified by field survey. aims explore potential natural, needle-leaved broadleaved forest. First, trees were isolated, spectra then extracted....