搜索结果: 31-45 共查到“工学 Road”相关记录343条 . 查询时间(0.038 秒)
URBAN ROAD DETECTION IN AIRBONE LASER SCANNING POINT CLOUD USING RANDOM FOREST ALGORITHM
ALS Random Forest classification road detection
2016/7/27
The objective of this research is to detect points that describe a road surface in an unclassified point cloud of the airborne laser scanning (ALS). For this purpose we use the Random Forest learning ...
AN EFFICIENT METHOD FOR AUTOMATIC ROAD EXTRACTION BASED ON MULTIPLE FEATURES FROM LiDAR DATA
Remote sensing feature extraction pattern recognition LiDAR Road detection
2016/7/27
The road extraction in urban areas is difficult task due to the complicated patterns and many contextual objects. LiDAR data directly provides three dimensional (3D) points with less occlusions and sm...
ROAD NETWORK EXTRACTION FROM DSM BY MATHEMATICAL MORPHOLOGY AND REASONING
Road extraction Digital Surface Model Morphology
2016/7/8
The objective of this research is the automatic extraction of the road network in a scene of the urban area from a high resolution digital surface model (DSM). Automatic road extraction and modeling f...
ACCURACY AND SPATIAL VARIABILITY IN GPS SURVEYING FOR LANDSLIDE MAPPING ON ROAD INVENTORIES AT A SEMI-DETAILED SCALE: THE CASE IN COLOMBIA
GPS horizontal accuracy Road inventory Spatial variability
2016/7/8
The accuracy of locating attributes on topographic surfaces when, using GPS in mountainous areas, is affected by obstacles to wave propagation. As part of this research on the semi-automatic detection...
HOW TRAVEL DEMAND AFFECTS DETECTION OF NON-RECURRENT TRAFFIC CONGESTION ON URBAN ROAD NETWORKS
Non-recurrent congestion space-time clustering space-time scan statistics
2016/7/8
Occurrence of non-recurrent traffic congestion hinders the economic activity of a city, as travellers could miss appointments or be late for work or important meetings. Similarly, for shippers, unexpe...
DETECTION OF CRACKS IN PAVED ROAD SURFACE USING LASER SCAN IMAGE DATA
Paved Road Surface Crack Detection Laser Scan Image Background Subtraction Image Segmentation
2016/7/5
In the current study, we developed a methodology for detecting cracks in the surface of paved road using 3D digital surface model of road created by measuring with three-dimensional laser scanner whic...
ROAD SIGNS DETECTION AND RECOGNITION UTILIZING IMAGES AND 3D POINT CLOUD ACQUIRED BY MOBILE MAPPING SYSTEM
Road Signs Detection and Recognition Mobile Mapping System (MMS) Object Based Image Analysis Multi-Scale Image Segmentation 3D Point Cloud
2016/7/5
High-definition and highly accurate road maps are necessary for the realization of automated driving, and road signs are among the most important element in the road map. Therefore, a technique is nec...
COMPARATIVE EVALUATION OF PAVEMENT CRACK DETECTION USING KERNEL-BASED TECHNIQUES IN ASPHALT ROAD SURFACES
Mobile Mapping RGB Camera Road Crack Extraction Kernel-based Segmentation Feature Fusion
2016/7/5
With the increasing demand for the digital survey and acquisition of road pavement conditions, there is also the parallel growing need for the development of automated techniques for the analysis and ...
PAIRWISE-SVM FOR ON-BOARD URBAN ROAD LIDAR CLASSIFICATION
LiDAR on-board classifiaction SVM MRF
2016/7/4
The common method of LiDAR classifications is Markov random fields (MRF). Based on construction of MRF energy function, spectral and directional features are extracted for on-board urban point clouds....
Knowledge-based road interpretation in aerial images
Knowledge road interpretation aerial images
2016/5/23
This paper presents a knowledge-based method for automatic road extraction from aerial images. The method uses a hybrid control strategy in which hypotheses of roads are generated in a bottom-up proce...
Automatic detection of changes in road data bases using satellite imagery
Automatic detection changes satellite imagery
2016/5/20
An automatic procedure is developed for detection of changes between an existing road database and a newly registered satellite image, rectified to an orthophoto.
Model based road extraction for the registration and interpretation of remote sensing data
Model Based Road Extraction GIS Registration GIS verification Remote Sensing GIS update
2016/5/20
Due to the increasing number of digital remote sensing data taken by aeroplane and satellite which are used for the updating of maps and the environmental or agricultural monitoring, there is a need t...
EFFICIENT ROAD MAPPING VIA INTERACTIVE IMAGE SEGMENTATION
Automation Video Processing Incremental Learning Object Detection
2016/3/1
Last years witnessed the growth of demand for road monitoring systems based on image or video analysis. These systems usually
consist of a survey vehicle equipped with photo and video cameras, laser...
AUTOMATIC ROAD EXTRACTION FROM LIDAR DATA BASED ON CLASSIFIER FUSION IN URBAN AREA
LIDAR Road Extraction Classifier Fusion Classifier selection Genetic Algorithm
2016/2/29
LIDAR is a powerful remote sensing technology for acquisition of 3D information from terrain surface. Algorithms used for LIDAR
data in urban area are used mostly to deal with the 3D points cloud an...
DATA FUSION OF MULTI-SOURCE REMOTE SENSING BASED ON LEVEL SET METHOD AND APPLICATION TO URBAN ROAD EXTRACTION
Urban Multisensor Fusion Algorithms Semi-automation Extraction
2015/12/31
Using data fusion of multi-spectral and microwave radar images, a semiautomatic method is developed based on the level set method for application to urban road extraction. The fast marching method of ...
