搜索结果: 121-135 共查到“信息与通信工程 LiDAR”相关记录162条 . 查询时间(0.028 秒)
ALTERNATIVE METHODOLOGIES FOR THE ESTIMATION OF LOCAL POINT DENSITY INDEX: MOVING TOWARDS ADAPTIVE LIDAR DATA PROCESSING
LIDAR Point cloud Processing Estimation Quality Analysis
2012/7/24
Over the past few years, LiDAR systems have been established as a leading technology for the acquisition of high density point clouds over physical surfaces. These point clouds will be processed for t...
RECONSTRUCTION OF BUILDING OUTLINES IN DENSE URBAN AREAS BASED ON LIDAR DATA AND ADDRESS POINTS
LIDAR Point Cloud Algorithms Building Reconstruction
2012/7/24
The paper presents a comprehensive method for automated extraction and delineation of building outlines in densely built-up areas. A novel approach to outline reconstruction is the use of geocoded bui...
AUTOMATED RECONSTRUCTION OF WALLS FROM AIRBORNE LIDAR DATA FOR COMPLETE 3D BUILDING MODELLING
LIDAR Three-dimensional Principle Component Analysis Segmentation Feature extraction Vertical wall
2012/7/24
Automated 3D building model generation continues to attract research interests in photogrammetry and computer vision. Airborne Light Detection and Ranging (LIDAR) data with increasing point density an...
CALIBRATION OF LOW COST DIGITAL CAMERA USING DATA FROM SIMULTANEOUS LIDAR AND PHOTOGRAMMETRIC SURVEYS
Lidar Camera Calibration Bundle Adjustment Direct Georeferencing Photogrammetry IOP On-the-job calibration
2012/7/20
Digital photogrammetric products from the integration of imagery and lidar datasets are a reality nowadays. When the imagery and lidar surveys are performed together and the camera is connected to the...
A PROCEDURE FOR THE REGISTRATION AND SEGMENTATION OF HETEROGENEOUS LIDAR DATA
LiDAR Registration Segmentation Fusion Automation
2012/7/20
Laser scanning, whether airborne or terrestrial is being used nowadays for wide spectrum of applications. In addition, many advances have been introduced to the laser scanning technology in the last d...
A NEW EFFECTIVE WAY ON VEGETATION MORNITORING USING MULTI-SPECTRAL CANOPY LIDAR
Remote Sensing Vegetation Monitoring Global-Environmental LIDAR Spectral
2012/7/20
Airborne Laser Scanning (ALS) has been a well-established tool for the measurement of surface topography as well as for the estimation of biophysical canopy variables, such as tree height and vegetati...
SURFACE COMPLEXITY COMPONENT OF LIDAR POINT CLOUD ERROR CHARACTERIZATION
Airborne LiDAR DEM Point cloud Surface complexity Accuracy/Error Assessment
2012/7/20
There are several data product characterization methods to describe LiDAR data quality. Typically based on guidelines developed by government or professional societies, these techniques require the st...
Variability of Urban Aerosols over Santiago, Chile: Comparison of Surface PM10 Concentrations and Remote Sensing with Ceilometer and Lidar
Aerosols Lidar Ceilometer PM10 Santiago Chile
2012/2/28
Lidar instruments have proven useful for characterizing the structure and dynamics of aerosol layers. We compare here
the diurnal, seasonal and vertical variability of urban aerosols as described by ...
LIDAR MAPPING TECHNOLOGY TO POPULATE GREEN AREAS GIS
Application Mapping Database LIDAR Survey Vegetation
2011/8/31
In the last eight years the structure of Topographical Database of green areas has been implemented and consolidated: originally born to manage green areas in Milan, it is now used in other cities. Be...
结合影像和LiDAR点云数据的水体轮廓线提取方法
机载激光雷达 水体 轮廓线
2009/9/30
从遥感影像中提取水体的传统方法在阴影处和水体浑浊处存在一定局限；机载激光雷达（LiDAR）获取点云数据时水体受阴影和浑浊的影响小，因此使用点云数据提取水体比使用影像数据更加稳健；但点云数据的分辨率低，所提取的轮廓线精度不高。为了提高水体边缘轮廓线的精确度，提出一种高分辨率影像与点云数据相结合的水体轮廓线提取方法。实验结果表明，该方法所提取的水体轮廓线定位精确、细节完好，水体提取准确率达到98.6%...
OBJECT EXTRACTION FROM LIDAR DATA USING AN ARTIFICIAL SWARM BEE COLONY CLUSTERING ALGORITHM
Clustering LIDAR Artificial Bee Colony Urban Area Object Extraction
2009/3/1
Light Detection and Ranging (LIDAR) systems have become a standard data collection technology for capturing object surface
information and 3D modeling of urban areas. Although, LIDAR systems provide...
VEHICLE ACTIVITY INDICATION FROM AIRBORNE LIDAR DATA OF URBAN AREAS BY BINARY SHAPE CLASSIFICATION OF POINT SETS
Airborne LiDAR Urban areas Vehicle extraction Motion indication Shape analysis
2009/3/1
This paper presents a generic scheme to analyze urban traffic via vehicle motion indication from airborne laser scanning (ALS) data.
The scheme comprises two main steps performed progressively － veh...
3D BUILDING RECONSTRUCTION FROM LIDAR BASED ON A CELL DECOMPOSITION APPROACH
LIDAR Reconstruction Building Automation Algorithms
2009/3/1
The reconstruction of 3D city models has matured in recent years from a research topic and niche market to commercial products and
services. When constructing models on a large scale, it is inevitab...
COMPLEX SCENE ANALYSIS IN URBAN AREAS BASED ON AN ENSEMBLE CLUSTERING METHOD APPLIED ON LIDAR DATA
LIDAR Feature Object Extraction Training Fusion Urban Building
2009/3/1
3D object extraction is one of the main interests and has lots of applications in photogrammetry and computer vision. In recent
years, airborne laser-scanning has been accepted as an effective 3D da...
DETECTION OF BUILDINGS AT AIRPORT SITES USING IMAGES & LIDAR DATA AND A COMBINATION OF VARIOUS METHODS
DTMs/DSMs Lidar Data Processing Multispectral Classification
2009/3/1
In this work, we focus on the detection of buildings, by combining information from aerial images and Lidar data. We applied four
different methods on a dataset located at Zurich Airport, Switzerlan...