成果/Result
- 利用机载激光雷达数据提取单株木树高和树冠被引量：98收藏
- 作者：刘清旺[1] 李增元[1] 陈尔学[1] 庞勇[1] 武红敢[1]
- 机构：中国林业科学研究院资源信息研究所
- 来源：《北京林业大学学报》 2008
- 关键词：激光雷达 激光应用 单株木 树高 树冠 双正切角树冠识别算法
- 摘要：机载激光雷达是一种主动遥感技术。在林业应用方面,高采样密度激光雷达能够获取单株木三维结构特征,采用不同的数据处理方法,可以得到不同精度的单株木参数。该文利用高采样密度的机载激光雷达数据(离散回波,平均激光点间隔0.52 ...
- 下载全文在线阅读
- LiCHy: The CAF's LiDAR, CCD and Hyperspectral Integrated Airborne Observation System被引量：72收藏
- 作者：Pang, Yong[1,2] Li, Zengyuan[1,2] Ju, Hongbo[1,2] Lu, Hao[1] Jia, Wen[1]
- 机构：Chinese Acad Forestry;State Forestry Adm China;Chinese Acad Sci;Chinese Acad Sci
- 来源：REMOTE SENSING 2016
- 关键词：airborne remote sensing forest structure waveform LiDAR CCD imaging spectroscopy multi-angle
- Hyperion高光谱数据森林郁闭度定量估测研究被引量：70收藏
- 作者：谭炳香[1] 李增元[1] 陈尔学[1] 庞勇[1] 雷渊才[1]
- 机构：中国林业科学研究院资源信息研究所
- 来源：《北京林业大学学报》 2006
- 关键词：高光谱遥感 森林郁闭度 Hyperion PCA
- 摘要：该文探讨和评价了利用星载EO-1 Hyperion高光谱遥感数据定量估测森林郁闭度的能力.高光谱数据光谱特征空间降维采用两种方式,一种是光谱特征选择的波段选择法(BS),另一种是光谱特征提取的主成分变换法(PCA).从森...
- 其他来源数据库：
万方期刊数据库
同方期刊数据库 - 下载全文在线阅读
- 单时相双极化ENVISAT ASAR数据水稻识别被引量：55收藏
- 作者：谭炳香[1] 李增元[1] 李秉柏[2] 张平平[2]
- 机构：中国林业科学研究院资源信息研究所;江苏农科院资源与环境研究中心
- 来源：《农业工程学报》 2006
- 关键词：ENVISAT ASAR 水稻 双极化 雷达后向散射
- 摘要：许多研究已表明合成孔径雷达(SAR)对水稻识别及作物长势监测很有潜力。但是,以往的研究多是采用单极化多时相SAR数据进行水稻监测的。该文本着探讨多极化方式的优势以及降低数据购买成本和减少数据处理量的目的,对单时相双极化的...
- 其他来源数据库：万方期刊数据库同方期刊数据库
- 下载全文在线阅读
- Influence of climatic and geographic factors on the spatial distribution of Qinghai spruce forests in the dryland Qilian Mountains of Northwest China被引量：49收藏
- 作者：Yang, Wenjuan[1] Wang, Yanhui[1] Webb, Ashley A.[2] Li, Zengyuan[3] Tian, Xin[3]
- 机构：Chinese Acad Forestry;Tamworth Agr Inst;Chinese Acad Forestry;Acad Water Resource Conservat Forests Qilian Mt G
- 来源：SCIENCE OF THE TOTAL ENVIRONMENT 2018
- 关键词：Forest distribution Mountain area Climate change Topography Arid zone
- 激光雷达森林参数反演研究进展被引量：42收藏
- 作者：李增元[1] 刘清旺[1] 庞勇[1]
- 机构：中国林业科学研究院资源信息研究所林业遥感与信息技术重点开放性实验室
- 来源：《遥感学报》 2016
- 关键词：激光雷达 森林 单木 林分
- 摘要：激光雷达通过发射激光能量和接收返回信号的方式,来获取高精度的森林空间结构和林下地形信息。全波形激光雷达通过记录返回信号的全部能量,得到亚米级植被垂直剖面;离散回波激光雷达记录的单个或多个回波,表示来自不同冠层的回波信号。...
- 其他来源数据库：万方期刊数据库同方期刊数据库
- 下载全文在线阅读
- Estimating montane forest above-ground biomass in the upper reaches of the HEIhe River Basin using Landsat-TM data被引量：42收藏
- 作者：Tian, Xin[1,2] Li, Zengyuan[1] Su, Zhongbo[2] Chen, Erxue[1] van der Tol, Christiaan[2]
- 机构：Chinese Acad Forestry;Univ Twente;Chinese Acad Sci;Fuzhou Univ;Univ Technol Sydney
- 来源：INTERNATIONAL JOURNAL OF REMOTE SENSING 2014
- 关键词：Estimation - Landforms - Linear regression - Mean square error - Nearest nEIghbor search - Remote sensing - Water resources - Watersheds
- A Kernel-Driven BRDF Approach to Correct Airborne Hyperspectral Imagery over Forested Areas with Rugged Topography被引量：40收藏
- 作者：Jia, Wen[1] Pang, Yong[1] Tortini, Riccardo[2] Schlaepfer, Daniel[3] Li, Zengyuan[1]
- 机构：Chinese Acad Forestry;Univ Calif Los Angeles;ReSe Applicat LLC;Univ Paul Sabatier
- 来源：REMOTE SENSING 2020
- 关键词：airborne hyperspectral image BRDF correction rugged topography kernel-driven remote sensing MODIS
- Improving Measurement of Forest Structural Parameters by Co-Registering of High Resolution Aerial Imagery and Low Density LiDAR Data被引量：38收藏
- 作者：Huang, Huabing[1,2] Gong, Peng[1,2,3] Cheng, Xiao[1,2] Clinton, Nick[1,2] Li, Zengyuan[1,2,4]
- 机构：Chinese Acad Sci;Beijing Normal Univ;Univ Calif Berkeley;Chinese Acad Forestry
- 来源：SENSORS 2009
- 关键词：LiDAR Aerial image Forest structural parameters extraction
- Estimating zero-plane displacement hEIght and aerodynamic roughness length using synthesis of LiDAR and SPOT-5 data被引量：38收藏
- 作者：Tian, X.[1,2] Li, Z. Y.[1] van der Tol, C.[2] Su, Z.[2] Li, X.[3]
- 机构：Chinese Acad Forestry;Univ Twente;Chinese Acad Sci;Chinese Acad Sci;Beijing Inst Space Mech & Elect
- 来源：REMOTE SENSING OF ENVIRONMENT 2011
- 关键词：Zero-plane displacement Aerodynamic roughness length WATER campaign LiDAR SPOT-5 Eddy covariance
- Large area forest stem volume mapping in the boreal zone using synergy of ERS-1/2 tandem coherence and MODIS vegetation continuous fields被引量：37收藏
- 作者：Cartus, Oliver[1] Santoro, Maurizio[2] Schmullius, Christiane[1] Li, Zengyuan[3]
- 机构：Univ Jena;Gamma Remote Sensing;Chinese Acad Forestry
- 来源：REMOTE SENSING OF ENVIRONMENT 2011
- 关键词：ERS Coherence Boreal forest Stem volume MODIS VCF China Siberia
- Filling invalid values in a lidar-derived canopy hEIght model with morphological crown control被引量：35收藏
- 作者：Zhao, Dan[1] Pang, Yong[1] Li, Zengyuan[1] Sun, Guoqing[2]
- 机构：Chinese Acad Forestry;Univ Maryland
- 来源：INTERNATIONAL JOURNAL OF REMOTE SENSING 2013
- 关键词：Charge coupled devices - Filling - Forestry - Mathematical operators - Median filters
- Mapping Aboveground Biomass using Texture Indices from Aerial Photos in a Temperate Forest of Northeastern China被引量：34收藏
- 作者：Meng, Shili[1] Pang, Yong[2] Zhang, Zhongjun[1] Jia, Wen[2] Li, Zengyuan[2]
- 机构：Beijing Normal Univ;Chinese Acad Forestry
- 来源：REMOTE SENSING 2016
- 关键词：FOTO indices LiDAR SVR aerial photos temperate forest high spatial resolution image AGB
- Development of a System of Compatible Individual Tree Diameter and Aboveground Biomass Prediction Models Using Error-In-Variable Regression and Airborne LiDAR Data被引量：33收藏
- 作者：Fu, Liyong[1] Liu, Qingwang[1] Sun, Hua[2,3] Wang, Qiuyan[1] Li, Zengyuan[1]
- 机构：Chinese Acad Forestry;Cent South Univ Forestry & Technol;Key Lab Forestry Remote Sensing Based Big Data &;Xinyang Normal Univ;Southern Illinois Univ
- 来源：REMOTE SENSING 2018
- 关键词：airborne LiDAR diameter at breast hEIght aboveground biomass error-in-variable models leave-one-out cross-validation
- Simulation of Forest Carbon Fluxes Using Model Incorporation and Data Assimilation被引量：33收藏
- 作者：Yan, Min[1] Tian, Xin[1] Li, Zengyuan[1] Chen, Erxue[1] Wang, Xufeng[2]
- 机构：Chinese Acad Forestry;Chinese Acad Sci;Fuzhou Univ
- 来源：REMOTE SENSING 2016
- 关键词：carbon fluxes model incorporation data assimilation
- Forest stand biomass estimation using ALOS PALSAR data based on LiDAR-derived prior knowledge in the Qilian Mountain, western China被引量：32收藏
- 作者：He, Qi-Sheng[1,2,3] Cao, Chun-Xiang[1] Chen, Er-Xue[4] Sun, Guo-Qing[1] Ling, Fei-Long[4]
- 机构：Inst Remote Sensing Applicat Chinese Acad Sci & B;Hohai Univ;Chinese Acad Sci;Chinese Acad Forestry
- 来源：INTERNATIONAL JOURNAL OF REMOTE SENSING 2012
- 关键词：Backscattering - Forestry - Optical radar - Polarization - Synthetic aperture radar
- Individual Tree Classification Using Airborne LiDAR and Hyperspectral Data in a Natural Mixed Forest of Northeast China被引量：32收藏
- 作者：Zhao, Dan[1,2] Pang, Yong[2] Liu, Lijuan[3,4] Li, Zengyuan[2]
- 机构：Chinese Acad Sci;Chinese Acad Forestry;Zhejiang A&F Univ;Zhejiang A&F Univ
- 来源：FORESTS 2020
- 关键词：individual tree classification LiDAR hyperspectral SVM natural forest
- Isolating individual trees in a closed coniferous forest using small footprint lidar data被引量：29收藏
- 作者：Zhao, Dan[1,2] Pang, Yong[2] Li, Zengyuan[2] Liu, Lijuan[3,4]
- 机构：Chinese Acad Sci;Chinese Acad Forestry;Zhejiang A&F Univ;Zhejiang A&F Univ
- 来源：INTERNATIONAL JOURNAL OF REMOTE SENSING 2014
- 关键词：Optical radar - Watersheds
- 机载LIDAR点云数据估测单株木生物量被引量：28收藏
- 作者：刘清旺[1] 李增元[1] 陈尔学[1] 庞勇[1] 田昕[1]
- 机构：中国林业科学研究院资源信息研究所林业遥感与信息技术重点开放性实验室;中国科学院遥感应用研究所遥感科学国家重点实验室
- 来源：《高技术通讯》 2010
- 关键词：激光雷达(LIDAR) 树高 冠幅 胸径(DBH) 相关生长方程 生物量 青海云杉
- 摘要：使用黑河流域遥感-地面观测同步试验获取的机载激光雷达(LIDAR)点云数据估测了典型树种的单株木生物量。首先由点云数据生成冠层高度模型(CHM),然后采用优化的单株木树冠特征识别算法估测相关的结构参数,最后通过回归分析建...
- 其他来源数据库：万方期刊数据库同方期刊数据库
- 下载全文在线阅读
- 小麦倒伏的雷达极化特征及其遥感监测被引量：27收藏
- 作者：杨浩[1,2] 杨贵军[1] 顾晓鹤[1] 李增元[2] 陈尔学[2]
- 机构：北京农业信息技术研究中心北京市农林科学院;中国林业科学研究院资源信息研究所
- 来源：《农业工程学报》 2014
- 关键词：雷达 极化 遥感 小麦 倒伏 灾害 极化指数 多时相
- 摘要：研究探索了雷达遥感大面积监测小麦倒伏状况的潜力。利用覆盖整个小麦生育期的5景时间序列Radarsat-2全极化影像数据,对比分析了倒伏小麦与正常小麦在不同时间、不同极化的雷达后向散射动态响应规律,发现雷达极化特征对小麦倒...
- 其他来源数据库：万方期刊数据库同方期刊数据库
- 下载全文在线阅读
- 星载SAR影像地理编码算法研究被引量：26收藏
- 作者：陈尔学[1] 李增元[1]
- 机构：中国林业科学研究院资源信息研究所
- 来源：《高技术通讯》 2000
- 关键词：SAR影像 成像模型 地理编码
- 摘要：对SAR成像机理进行了研究,据此对SAR的成像几何进行了精确构建。所建距离向和方位向成像方程的参数可以由卫星轨道参数和其它成像参数直接获得。若轨道参数精度较高,这些参数就可以直接用于SAR影像的地理编码,生成SAR正射影...
- 其他来源数据库：万方期刊数据库同方期刊数据库
- 下载全文在线阅读
- A New Approach for Forest HEIght Inversion Using X-Band Single-Pass InSAR Coherence Data被引量：23收藏
- 作者：Zhao, Lei[1,2] Chen, Erxue[1,2] Li, Zengyuan[1,2] Zhang, Wangfei[3] Fan, Yaxiong[1,2]
- 机构：Chinese Acad Forestry;NFGA;Southwest Forestry Univ
- 来源：IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 2022
- 关键词：Forestry Coherence Decorrelation Data models Mathematical model Backscatter Synthetic aperture radar Coherence forest hEIght inversion interferometric synthetic aperture radar (InSAR) multilevel model (MLM) single-pass InSAR X-band
- Synchronous estimation of DTM and fractional vegetation cover in forested area from airborne LIDAR hEIght and intensity data被引量：23收藏
- 作者：Bao YunFei[1,2,3] Cao ChunXiang[1,2] Zhang Hao[1,2] Chen ErXue[4] He QiSheng[1,2,3]
- 机构：Chinese Acad Sci;Beijing Normal Univ;Chinese Acad Sci;Chinese Acad Forestry;Beijing Normal Univ
- 来源：SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES 2008
- 关键词：LIDAR intensity skewness synchronous DTM fractional vegetation cover
- Synthesis of Leaf-on and Leaf-off Unmanned Aerial Vehicle (UAV) Stereo Imagery for the Inventory of Aboveground Biomass of Deciduous Forests被引量：22收藏
- 作者：Ni, Wenjian[1,2] Dong, Jiachen[1,2] Sun, Guoqing[3] Zhang, Zhiyu[1] Pang, Yong[4]
- 机构：Chinese Acad Sci;Univ Chinese Acad Sci;Univ Maryland;Chinese Acad Forestry
- 来源：REMOTE SENSING 2019
- 关键词：forest aboveground biomass stereo imagery unmanned aerial vehicles UAV AGB leaf-on leaf-off inventory
- Prediction of Diameter Distributions with Multimodal Models Using LiDAR Data in Subtropical Planted Forests被引量：22收藏
- 作者：Zhang, Zhengnan[1] Cao, Lin[1] Mulverhill, Christopher[2] Liu, Hao[1] Pang, Yong[3]
- 机构：Nanjing Forestry Univ;Univ British Columbia;Chinese Acad Forestry
- 来源：FORESTS 2019
- 关键词：diameter distribution LiDAR WEIbull finite mixture model KNN Lorenz curves planted forests
- Combining Airborne and Terrestrial Laser Scanning Technologies to Measure Forest Understorey Volume被引量：22收藏
- 作者：Liu, Luxia[1] Pang, Yong[1] Li, Zengyuan[1] Si, Lin[1] Liao, Shengxi[2]
- 机构：Chinese Acad Forestry;Chinese Acad Forestry
- 来源：FORESTS 2017
- 关键词：ALS canopy hEIght profile change detection forest tending forest understorey monitoring TLS
- Predicting forest hEIght using the GOST, Landsat 7 ETM+, and airborne LiDAR for sloping terrains in the Greater Khingan Mountains of China被引量：22收藏
- 作者：Gu, Chengyan[1,2] Clevers, Jan G. P. W.[2] Liu, Xiao[3] Tian, Xin[1] Li, Zhouyuan[4]
- 机构：Chinese Acad Forestry;Wageningen Univ & Res;Eindhoven Univ Technol;Wageningen Univ & Res
- 来源：ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING 2018
- 关键词：Forest hEIght Geometric-Optical Model for Sloping Terrains (GOST) Airborne LiDAR Landsat
- Degraded land detection by soil particle composition derived from multispectral remote sensing data in the Otindag Sandy Lands of China被引量：21收藏
- 作者：Wu, Junjun[1] Li, Zengyuan[1] Gao, Zhihai[1] Wang, Bengyu[1] Bai, Lina[1]
- 机构：Chinese Acad Forestry
- 来源：GEODERMA 2015
- 关键词：Degraded lands Soil particle composition Silt content Measured hyperspectral data Multispectral image PLSR
- 星载SAR地形辐射校正模型及其效果评价被引量：21收藏
- 作者：陈尔学[1,2] 李增元[1,2] 田昕[1,2] 凌飞龙[1,2]
- 机构：中国林业科学研究院资源信息研究所;国家林业局林业遥感与信息技术重点开放性实验室
- 来源：《武汉大学学报：信息科学版》 2010
- 关键词：合成孔径雷达 地形辐射校正 地理编码 正射校正
- 摘要：根据合成孔径雷达(SAR)严格成像几何模型和辐射定标公式建立了地形辐射校正(TRC)模型。通过实验,从定性和定量两个方面评价了TRC模型的有效性。比较了基于投影角和基于当地入射角两种计算有效散射单元面积的方法,对根据初始...
- 其他来源数据库：万方期刊数据库同方期刊数据库
- 下载全文在线阅读
- Potential of Forest Parameter Estimation Using Metrics from Photon Counting LiDAR Data in Howland Research Forest被引量：20收藏
- 作者：Chen, Bowei[1,2] Pang, Yong[1] Li, Zengyuan[1] North, Peter[2] Rosette, Jacqueline[2]
- 机构：Chinese Acad Forestry;Swansea Univ;Univ Maryland;Forest Res;Beijing Forestry Univ
- 来源：REMOTE SENSING 2019
- 关键词：ICESat-2 photon counting LiDAR forest parameters LiDAR metrics
