搜索结果: 1-15 共查到“理学 lidar”相关记录115条 . 查询时间(0.9 秒)
基于建筑物Lidar点云的特点，提出一种基于四元约束的多视角点云配准算法。建筑物Lidar点云的实验结果表明，在复杂和大场景建筑物Lidar点云的多视角配准中，该算法可以得到较好的配准精度。
THE ONE TO MULTIPLE AUTOMATIC HIGH ACCURACY REGISTRATION OF TERRESTRIAL LIDAR AND OPTICAL IMAGES
Ground Lidar Optical Image Automatic High Precision Registration
2018/5/15
The registration of ground laser point cloud and close-range image is the key content of high-precision 3D reconstruction of cultural relic object. In view of the requirement of high texture resolutio...
FEATURE RELEVANCE ASSESSMENT OF MULTISPECTRAL AIRBORNE LIDAR DATA FOR TREE SPECIES CLASSIFICATION
Multispectral Lidar 3D point clouds Intensity Tree Species Classification Feature Analysis
2018/5/11
The presented experiment investigates the potential of Multispectral Laser Scanning (MLS) point clouds for single tree species classification. The basic idea is to simulate a MLS sensor by combining t...
A THRESHOLD-FREE FILTERING ALGORITHM FOR AIRBORNE LIDAR POINT CLOUDS BASED ON EXPECTATION-MAXIMIZATION
Airborne LiDAR Point clouds Filtering Ground points Expectation-maximization Intensity
2018/5/14
Filtering is a key step for most applications of airborne LiDAR point clouds. Although lots of filtering algorithms have been put forward in recent years, most of them suffer from parameters setting o...
OBJECT-ORIENTED CLASSIFICATION OF LIDAR DATA FOR POST-EARTHQUAKE DAMAGE DETECTION
LiDAR Earthquake Classification Object Oriented Image Analysis Buildings Damage Detection
2018/4/18
The collapse of buildings during the earthquake is a major cause of human casualties. Furthermore, the threat of earthquakes will increase with growing urbanization and millions of people will be vuln...
激光雷达（Light Detection and Ranging，LiDAR）三维地形测绘技术已广泛应用于地质调查和地球科学研究中，其高精度特性推动了地球科学定量化发展；将其与无人飞行器集成为低空扫描系统，使其更加省时、便捷、高效，拓宽了LiDAR在野外调查的用途。将无人机载LiDAR测绘系统应用于野外地质调查，以2个实例展示了该系统LiDAR的优势与潜在使用前景。在活断层探测应用中，利用该系统对...
INDOOR MOBILE POSITIONING BASED ON LIDAR DATA AND CODED SEQUENCE PATTERN
LiDAR Coded Sequence Pattern Mobile Positioning SLAM algorithm POSIT algorithm
2016/10/14
This paper proposed a coded sequence pattern for automatic matching of LiDAR point data, the methods including SIFT features, Otsu segmentation and Fast Hough transformation for the identification, po...
3D-MODELING OF VEGETATION FROM LIDAR POINT CLOUDS AND ASSESSMENT OF ITS IMPACT ON FAÇADE SOLAR IRRADIATION
LiDAR solar potential solar irradiation vegetation convex hull individual tree crown detection (ITCD)
2016/10/14
The presence of vegetation can significantly affect the solar irradiation received on building surfaces. Due to the complex shape and seasonal variability of vegetation geometry, this topic has gained...
OPEN-SOURCE DIGITAL ELEVATION MODEL (DEMs) EVALUATION WITH GPS AND LiDAR DATA
Digital Elevation Model inundation mapping vertical accuracy LiDAR scale factor coastal inundation risk assessment
2016/10/14
Advanced Spaceborne Thermal Emission and Reflection Radiometer-Global Digital Elevation Model (ASTER GDEM), Shuttle Radar Topography Mission (SRTM), and Global Multi-resolution Terrain Elevation Data ...
INFLUENCE OF RIVER BED ELEVATION SURVEY CONFIGURATIONS AND INTERPOLATION METHODS ON THE ACCURACY OF LIDAR DTM-BASED RIVER FLOW SIMULATIONS
LiDAR Digital Terrain Model River Bed Survey Configuration Interpolation Integration Flow Simulation
2016/10/14
In this paper, we investigated how survey configuration and the type of interpolation method can affect the accuracy of river flow simulations that utilize LIDAR DTM integrated with interpolated river...
ESTIMATION OF AERODYNAMIC ROUGHNESS AND ZERO PLANE DISPLACEMENT USING MEDIUM DENSITY OF AIRBORNE LIDAR DATA
Airborne LiDAR Aerodynamic Roughness Length Zero Plane Displacement Forest
2016/10/14
This paper presents a framework to estimate aerodynamic roughness over specific height (zo/H) and zero plane displacement (d/H) over various landscapes in Kelantan State using airborne LiDAR data. The...
EVALUATING ERROR OF LIDAR DERIVED DEM INTERPOLATION FOR VEGETATION AREA
LiDAR DEM Interpolation GIS Slope RMSE
2016/10/14
Light Detection and Ranging or LiDAR data is a data source for deriving digital terrain model while Digital Elevation Model or DEM is usable within Geographical Information System or GIS. The aim of t...
SEMI-AUTOMATED APPROACH FOR MAPPING URBAN TREES FROM INTEGRATED AERIAL LiDAR POINT CLOUD AND DIGITAL IMAGERY DATASETS
Extraction Integrated Airborne LiDAR Multispectral Image Urban Trees
2016/10/14
Mapping of trees plays an important role in modern urban spatial data management, as many benefits and applications inherit from this detailed up-to-date data sources. Timely and accurate acquisition ...
Analysis of Dust Aerosol by Using Dual-Wavelength Lidar
Dust aerosol Size distribution Dual-wavelength lidar Lidar ratio
2016/3/25
Simulation of dust aerosol optical property is rather difficult, due to its extremely irregular shape, which often brings about
difficulties in transforming its physical properties (such as size dist...
Algorithms for the inversion of lidar signals: Rayleigh-Mie measurements in the stratosphere
lidar dial ozone aerosol temperature
2015/10/8
We report the features and the performances of the algorithms, developed at the Lidar Station of L'Aquila, for retrieving atmospheric parameters and constituents from elastic lidar signals. The algori...