搜索结果: 1-14 共查到“物理学 LIDAR”相关记录14条 . 查询时间(0.109 秒)
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...
A SEGMENTATION PROCEDURE OF LIDAR DATA BY APPLYING MIXED PARAMETRIC AND NONPARAMETRIC MODELS
LIDaR data segmentation process parametric and nonparametric models
2015/8/13
The paper proposes a segmentation procedure inspired to a robust LIDaR filtering data method recently introduced by the authors.
The method is based on the application of a Simultaneous AutoRegressi...
EFFECTS OF LIDAR DEM RESOLUTION IN FLOOD MODELLING: A MODEL SENTITIVITY STUDY FOR THE CITY OF TEGUCIGALPA, HONDURAS
Flood modelling DEM resolution LIDAR SOBEK
2015/8/13
An important aspect of hydraulic flood modelling deals with representing topography of river and floodplain. Commonly, flood
model applications are reported successful in topographically simple area...
Dense DTM Generalization Aided by Roads Extracted from LiDAR Data
LiDAR High Resolution Extraction DTM Generalization road detection Representation
2015/8/13
The paper concerns the generalization of DTM extracted from LiDAR data. The essence of generalization is reducing details while
enhancing important features at the same time; so for the purpose of te...
URBAN MODELING BASED ON SEGMENTATION AND REGULARIZATION OF AIRBORNE LIDAR POINT CLOUDS
idar Building reconstruction Urban area modelling
2015/6/1
This paper presents an approach to process raw lidar 3-D point clouds over urban area and extract terrain, buildings and other urban
features. In the initial step, “non-ground points” are separated ...
AUTOMATIC BUILDING EXTRACTION AND 3-D CITY MODELING FROM LIDAR DATA BASED ON HOUGH TRANSFORMATION
LIDAR Modeling City Graphics
2015/6/1
This paper proposes a new method of LIDAR data processing to automatically extract building and 3-D city modeling. This method
exploits image processing technique including Hough transformation. The...
Pseudo-Grid Based Building Extraction Using Airborne LIDAR Data
LIDAR Building Extraction Building Detection
2015/6/1
This paper proposed a practical method for building detection and extraction using airborne laser scanning data. The proposed
method consists mainly of two processes: low and high level processes. T...
USING STEREO IMAGES TO DENSIFY LIDAR DATA POINTS AT WHERE NEEDED
Image Building Application Algorithm
2015/6/1
For many applications, dense Lidar data is often needed. For instance, for telecommunication antenna network design, 1 meter
spacing Lidar data would be needed for downtown area of a big city. Howev...
APPLICATION OF LIDAR DATA AND 3D-CITY MODELS IN VISUAL IMPACT SIMULATIONS OF TALL BUILDINGS
Tall Buildings 3D Isovists Visual Impact
2015/5/7
The paper examines possibilities and limitations of application of Lidar data and digital 3D-city models to provide specialist urban analyses of tall buildings. The location and height of tall build...
A BOX-COUNTING METHOD TO CHARACTERIZE DEGREES OF FOLIAGE CLUMPING USING AIRBORNE AND SIMULATED LIDAR DATA
LiDAR leaf area index foliage clumping
2015/5/7
Monitoring forest productivity and health is key to sustainable ecosystem management and informed decision making. A key parameter used in monitoring forest resources is the leaf area index (LAI), w...
机载LIDAR技术作为一种高精度的三维地物探测手段，其相应的数据格式也在不断发展。美国摄影测量与遥感（ASPRS）协会下的LIDAR委员会于2003年发布了标准LIDAR数据格式LAS，经过改进，目前已有4种版本，分别是LAS 1.0、1.1、1.2与2.0（拟定版）。本文在解析4种版本的基础上，探讨了LAS标准格式的发展趋势，并采用IDL 6.2语言对该格式的LIDAR数据进行读取和转换试验，检...
TERRAIN MODELING IN AN EXTREMELY STEEP MOUNTAIN: A COMBINATION OF AIRBORNE AND TERRESTRIAL LIDAR
Integration DEM/DTM Aerial
2015/6/1
A combination of airborne and terrestrial LIDAR data has been used to model extremely steep mountains that are crossed by the
Núria cog railway. This cog train is the only terrestrial transportation...