搜索结果: 16-30 共查到“知识库 信息与通信工程 classification”相关记录42条 . 查询时间(0.296 秒)
Automatic Classification of coarse density LiDAR data in urban area
LIDAR Vehicle Classification Airborne Urban PCA NDSM DTM
2014/6/30
The classification of different objects in the urban area using airborne LIDAR point clouds is a challenging problem especially with low density data. This problem is even more complicated if RGB info...
CLASSIFICATION OF WATER SURFACES USING AIRBORNE TOPOGRAPHIC LIDAR DATA
Lidar airborne classification water support vector machines seashore rivers
2013/4/30
Accurate Digital Terrain Models (DTM) are inevitable inputs for mapping areas subject to natural hazards. Topographic airborne laser scanning has become an established technique to characterize the Ea...
FOREST SPECIES CLASSIFICATION BASED ON STATISTICAL POINT PATTERN ANALYSIS USING AIRBORNE LIDAR DATA
Remote Sensing LiDAR Point Pattern Analysis K-function PCA Classification
2012/9/3
The paper investigated the effectiveness of point pattern methods in the application of forest species classification using airborne LiDAR data. The forest stands and individual trees in our study are...
AREA-BASED SNOW DAMAGE CLASSIFICATION OF FOREST CANOPIES USING BI- TEMPORAL LIDAR DATA
Change detection airborne laser scanning logistic regression
2012/9/3
Multitemporal LiDAR data provide means for mapping structural changes in forest canopies. We demonstrate the use of area-based estimation method for snow damage assessment. Change features of bi-tempo...
PIXEL VS OBJECT-BASED IMAGE CLASSIFICATION TECHNIQUES FOR LIDAR INTENSITY DATA
LiDAR intensity data object-based classification decision tree.
2012/9/3
Light Detection and Ranging (LiDAR) systems are remote sensing techniques used mainly for terrain surface modelling. LiDAR sensors record the distance between the sensor and the targets (range data) w...
POINTS CLASSIFICATION BY A SEQUENTIAL HIGHER – ORDER MOMENTS STATISTICAL ANALYSIS OF LIDAR DATA
LIDAR Classification Algorithms Skewness Kurtosis
2012/9/3
The paper deals with a new sequential procedure to perform unsupervised LIDAR points classification by iteratively studying skewness and kurtosis for elevation and intensity point distribution values....
A COMPARISON OF TWO DIFFERENT APPROACHES OF POINT CLOUD CLASSIFICATION BASED ON FULL-WAVEFORM LIDAR DATA
full-waveform LiDAR Decomposition Unsupervised classification point cloud, space transform EM algorithm
2012/7/24
In this paper, two different point cloud classification approaches were applied based on the full-waveform LiDAR data. At the beginning, based on the full-waveform LiDAR data, we decomposed the backsc...
CLASSIFICATION BY USING MULTISPECTRAL POINT CLOUD DATA
Classification Image Matching Close Range Photogrammetry Infrared Point Cloud
2012/7/24
Remote sensing images are generally recorded in two-dimensional format containing multispectral information. Also, the semantic information is clearly visualized, which ground features can be better r...
PROGRESSIVE DENSIFICATION AND REGION GROWING METHODS FOR LIDAR DATA CLASSIFICATION
LiDAR DEM/DTM Classification Algorithms
2012/7/24
At present, airborne laser scanner systems are one of the most frequent methods used to obtain digital terrain elevation models. While having the advantage of direct measurement on the object, the poi...
Multiple Kernel Active Learning for Image Classification
Multiple Kernel Active Image Classification
2009/12/31
Recently, multiple kernel learning (MKL) methods have shown promising performance in image classification. As a sort of supervised learning, training MKL-based classifiers
relies on selecting and ann...
On Optimal Bit Allocation for Classification-Based Source-Dependent Transform Coding
Optimal Bit Allocation Source-Dependent Transform Coding
2009/9/4
An optimal bit allocation is presented for classification-based source-dependent transform coding. A vector of transform coefficients is considered to have been produced by a mixture of processes. The...
Scattering-Based Model of the SAR Signatures of Complex Targets for Classification Applications
Scattering-Based Model SAR Signatures Complex Targets Classification Applications
2009/9/3
The modeling of complex target response in SAR imagery is the main subject of this paper. The analysis of a large database of SAR images with polarimetric and interferometric capabilities is used to a...
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...
CURVATURE ANALYSIS OF LIDAR DATA FOR SINGLE TREE SPECIES CLASSIFICATION IN ALPINE LATITUDE FORESTS
LiDAR Tree extraction Curvature analysis Crown delineation Forest typology Species
2009/2/19
In this paper we explore the potential of LiDAR to distinguish between principal forest typology of alpine latitudes surveyed in leafon conditions. To this aim, a complete processing chain was develop...
AIRBORNE LIDAR FEATURE SELECTION FOR URBAN CLASSIFICATION USING RANDOM FORESTS
Lidar Full-waveform Classifi cation Feature selection Random Forests Urban scenes
2009/2/19
Various multi-echo and Full-waveform (FW) lidar features can be processed. In this paper, multiple classifers are applied to lidar
feature selection for urban scene classification. Random fores...