41–60 of 222 hits
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    OBJECT-BASED AND SUPERVISED DETECTION OF POTHOLES AND CRACKS FROM THE PAVEMENT IMAGES ACQUIRED BY UAV

    Free access
    Y. Pan / X. Zhang / M. Sun et al. | DOAJ | 2017
    improve the efficiency of pavement inspection, nowadays some new forms of remote sensing data without destructive effect on the pavement are ...

    DETECTION AND 3D MODELLING OF VEHICLES FROM TERRESTRIAL STEREO IMAGE PAIRS

    Free access
    M. Coenen / F. Rottensteiner / C. Heipke | DOAJ | 2017
    use of the 3D stereo information and incorporate geometric assumptions on vehicle inherent properties in a firstly applied generic 3D object ...

    EVALUATION AND CALIBRATION OF FIXED-WING MULTISENSOR UAV MOBILE MAPPING SYSTEM: IMPROVED RESULTS

    Free access
    K. Bakuła / W. Ostrowski / M. Pilarska et al. | DOAJ | 2019
    Unmanned Aerial Vehicles (UAVs) are willingly used in photogrammetry and remote sensing, especially for image acquisition, and are ...

    CONFIGURATION AND SPECIFICATIONS OF AN UNMANNED AERIAL VEHICLE FOR PRECISION AGRICULTURE

    Free access
    M. Erena / S. Montesinos / D. Portillo et al. | DOAJ | 2016
    collection, processing, and map updating in small areas is evaluated, generating correlations between classification maps derived from remote sensing ...

    POTENTIAL OF UAV-BASED LASER SCANNER AND MULTISPECTRAL CAMERA DATA IN BUILDING INSPECTION

    Free access
    D. Mader / R. Blaskow / P. Westfeld et al. | DOAJ | 2016
    Conventional building inspection of bridges, dams or large constructions in general is rather time consuming and often cost expensive due ...

    DETECTION AND RECOGNITION OF TRAFFIC SIGNS FROM DATA COLLECTED BY THE MOBILE MAPPING SYSTEM

    Free access
    H. Gezgin / R. M. Alkan | DOAJ | 2024
    Autonomous vehicles and high-resolution maps are key elements of future transport systems. Detection and recognition of traffic signs is an ...

    EVALUATION OF A COMPACT HELMET-BASED LASER SCANNING SYSTEM FOR ABOVEGROUND AND UNDERGROUND 3D MAPPING

    Free access
    J. Li / B. Yang / Y. Chen et al. | DOAJ | 2022
    social benefits, and is of great significance to sustainable city development. Due to denied Global Navigation Satellite System (GNSS) signal ...

    BARRIER AND GUARDRAIL EXTRACTION AND CLASSIFICATION FROM POINT CLOUDS

    Free access
    M. Vidal / L. Díaz-Vilariño / P. Arias et al. | DOAJ | 2020
    infrastructures for global economy, traffic safety and for the generation of high definition maps, essential to autonomous vehicles. This paper presents a ...

    DESIGN AND EXPERIMENT OF A HIGH PAYLOAD FIXED WING VTOL UAV SYSTEM FOR EMERGENCY RESPONSE

    Free access
    H. Wu / Z. Wang / B. Ren et al. | DOAJ | 2020
    With the development of UAV technologies, the advantages of hybrid VTOL UAV have been realized and taken in emergency response. But, former ...

    THREE DIMENTIONAL RECONSTRUCTION OF LARGE CULTURAL HERITAGE OBJECTS BASED ON UAV VIDEO AND TLS DATA

    Free access
    Z. Xu / T. H. Wu / Y. Shen et al. | DOAJ | 2016
    -motion (SfM) and patch-based multi-view stereo (PMVS) methods. The TLS is used to collect the information that beyond the reachability of UAV ...

    USE OF A LIGHT UAV AND PHOTOGRAMMETRIC TECHNIQUES TO STUDY THE EVOLUTION OF A LANDSLIDE IN JAÉN (SOUTHERN SPAIN)

    Free access
    T. Fernández / J. L. Pérez / F. J. Cardenal et al. | DOAJ | 2015
    , was surveyed between 2012 and 2014 by means of four UAV flights. These surveys were also compared with those data from a previous conventional ...

    Evaluation of automatically extracted landmarks for future driver assistance systems

    Free access
    Brenner, Claus / Hofmann, Sabine | BASE | 2010
    In the future, vehicles will gather more and more spatial information about their environment, using on-board sensors such as cameras and ...
    Publisher: Göttingen : Copernicus GmbH , Institutional Repository of Leibniz Universität Hannover

    INVESTIGATION OF ROADWAY GEOMETRIC AND TRAFFIC FLOW FACTORS FOR VEHICLE CRASHES USING SPATIOTEMPORAL INTERACTION

    Free access
    G. Gill / T. Sakrani / W. Cheng et al. | DOAJ | 2017
    model is developed to investigate the vehicular crashes occurring at roadway segments. The spatial and temporal nature of crash data is ...

    UAV-BASED ACQUISITION OF 3D POINT CLOUD – A COMPARISON OF A LOW-COST LASER SCANNER AND SFM-TOOLS

    Free access
    D. Mader / R. Blaskow / P. Westfeld et al. | DOAJ | 2015
    The Project ADFEX (Adaptive Federative 3D Exploration of Multi Robot System) pursues the goal to develop a time- and cost-efficient system ...

    Vehicle localization using landmarks obtained by a lidar mobile mapping system

    Free access
    Brenner, Claus | BASE | 2010
    Accurate and reliable localization in extensive outdoor environments will be a key ability of future driver assistance systems and ...
    Publisher: Göttingen : Copernicus GmbH , Institutional Repository of Leibniz Universität Hannover

    CLOSE RANGE UAV ACCURATE RECORDING AND MODELING OF ST-PIERRE-LE-JEUNE NEO-ROMANESQUE CHURCH IN STRASBOURG (FRANCE)

    Free access
    A. Murtiyoso / P. Grussenmeyer / T. Freville | DOAJ | 2017
    Close-range photogrammetry is an image-based technique which has often been used for the 3D documentation of heritage objects. Recently ...

    QUALITY ASSESSMENTS OF UNMANNED AERIAL VEHICLE (UAV) AND TERRESTRIAL LASER SCANNING (TLS) METHODS IN ROAD CRACKS MAPPING

    Free access
    T. Jia Yi / A. B. Ahmad | DOAJ | 2023
    traditional inspection method used in Malaysia to physically collect the road information is extremely time-consuming, hazardous and labour-intensive ...

    MILLIMETRE MOON MEASUREMENT: 50 YEARS OF LUNAR LASER RANGING SINCE APOLLO 11!

    Free access
    J. F. Brock | DOAJ | 2020
    ” infers that it drives men insane. Giant tides and rapid recessions of water are all attributed to its gravitational influence. As a young boy I ...

    mapKITE: A NEW PARADIGM FOR SIMULTANEOUS AERIAL AND TERRESTRIAL GEODATA ACQUISITION AND MAPPING

    Free access
    P. Molina / M. Blázquez / J. Sastre et al. | DOAJ | 2016
    article, we entail the concept of mapKITE as well as the various technologies and techniques involved, from aircraft guidance and navigation based ...

    COMPARISON OF A FIXED-WING AND MULTI-ROTOR UAV FOR ENVIRONMENTAL MAPPING APPLICATIONS: A CASE STUDY

    Free access
    M. A. Boon / A. P. Drijfhout / S. Tesfamichael | DOAJ | 2017
    which is amongst the most important spatial information tools for environmental planning. The two main types of UAVs in the commercial market ...