1–20 of 222 hits
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    3D feature point extraction from LiDAR data using a neural network

    Free access
    Feng, Yu / Schlichting, Alexander / Brenner, Claus et al. | BASE | 2016
    , poles were extracted both from reference data and online sensor data, which were then matched to improve the positioning accuracy of the ...
    Publisher: Göttingen : Copernicus GmbH , Institutional Repository of Leibniz Universität Hannover
    Keywords: Remote sensing

    A CAPSNETS APPROACH TO PAVEMENT CRACK DETECTION USING MOBILE LASER SCANNNING POINT CLOUDS

    Free access
    W. Zhu / W. Tan / L. Ma et al. | DOAJ | 2021
    inspection are labour-intensive and time-consuming. Mobile laser scanning (MLS) has proven a rapid way for collecting a large number of highly dense ...

    A CONCEPT FOR AN AUTOMATED APPROACH OF PUBLIC TRANSPORT VEHICLES TO A BUS STOP

    Free access
    C. Albrecht / S. Kraus / A. Zimmermann et al. | DOAJ | 2019
    information into landmark detection by low-level data fusion is provided. Validation and verification of the proposed fusion approach have to be ...

    AERIAL MAGNETIC SENSING WITH AN UAV HELICOPTER

    Free access
    C. Eck / B. Imbach | DOAJ | 2012
    gusts and snow fall. Finally, this paper summarizes a real-world application after the collapse of a daylight coal mining where various persons ...

    AERIAL TERRAIN MAPPING USING UNMANNED AERIAL VEHICLE APPROACH

    Free access
    K. N. Tahar | DOAJ | 2012
    orientation process and to determine the accuracy of the photogrammetric products by using UAV images. Recently, UAV technology has been used in ...

    A GEOGRAPHIC WEIGHTED REGRESSION FOR RURAL HIGHWAYS CRASHES MODELLING USING THE GAUSSIAN AND TRICUBE KERNELS: A CASE STUDY OF USA RURAL HIGHWAYS

    Free access
    M. Aghayari / P. Pahlavani / B. Bigdeli | DOAJ | 2017
    assumed that the data are completely independent and environment is homogenous while the crashes are spatial events which are occurring in ...

    AIRBORNE CAMERA SYSTEM FOR REAL-TIME APPLICATIONS – SUPPORT OF A NATIONAL CIVIL PROTECTION EXERCISE

    Free access
    V. Gstaiger / H. Römer / D. Rosenbaum et al. | DOAJ | 2015
    , videos and derived traffic information to support the direction of the MTF and to identify needs for further improvements and developments ...

    A LIGHT-WEIGHT LASER SCANNER FOR UAV APPLICATIONS

    Free access
    A. M. G. Tommaselli / F. M. Torres | DOAJ | 2016
    benefit ratio. The practical use of laser scanning devices on-board UAVs is also developing with new experimental and commercial systems. This ...

    A METHOD FOR RECOGNIZING RAINFALL-SENSITIVE URBAN ROADS BASED ON TRAJECTORY DATA

    Free access
    S. Zhu / H. Zhang / Y. Jiang et al. | DOAJ | 2022
    rainfall-sensitive roads, which have significant changes in speed and an apparent trend of change during multiple rainfalls. Firstly, the ...

    A mobile multi-sensor platform for building reconstruction integrating terrestrial and autonomous UAV-based close range data acquisition

    Free access
    Cefalu, A. / Haala, N. / Schmohl, S. et al. | BASE | 2017
    Structure-from-Motion and multi-view stereo image matching enable the fully automatic generation of densely meshed 3D point clouds. In contrast, the ...
    Publisher: Göttingen : Copernicus GmbH , Institutional Repository of Leibniz Universität Hannover

    A MULTI-IMU BASED SELF-CONTAINED PEDESTRIAN NAVIGATION ALGORITHM

    Free access
    Y.-H. Jen / C.-H. Huang / S. Tsai et al. | DOAJ | 2023
    complementary component. However, a single high-accuracy IMU is financially prohibitive. On the other hand, the lack of accuracy and stability limits ...

    AN AGENT-BASED MODELLING FOR RIDE SHARING OPTIMIZATION USING A* ALGORITHM AND CLUSTERING APPROACH

    Free access
    M. Naseri Gorgoon / M. Davoodi / H. Motieyan | DOAJ | 2019
    Today, city management is one of the great challenges facing the world. The growth of population, industries, and services is in urgent ...

    ANALYSIS OF ORIENTATION ACCURACY OF AN UAV IMAGE ACCORDING TO CAMERA CALIBRATION

    Free access
    P. C. Lim / J. Seo / J. Son et al. | DOAJ | 2019
    Utilization of an UAV is increasing because of its easy operation and time saving advantages. Compared with other remote sensing platforms ...

    ANALYSIS OF SUN GLARE ON ROUNDABOUTS WITH AERIAL LASER SCANNING DATA

    Free access
    S. M. González-Collazo / J. Balado / E. González et al. | DOAJ | 2022
    bearing vectors of the roundabout. Entrances and exits driver bearing vectors of the roundabout are also considered. Then, sun rays are generated ...

    ANALYSIS OF UAV IMAGE QUALITY USING EDGE ANALYSIS

    Free access
    P.-C. Lim / T. Kim / S.-I. Na et al. | DOAJ | 2018
    such as orthoimages and DEM/DSM production. The spatial resolution of images is usually expressed as a GSD (Ground Sampling Distance). The GSD ...

    ANALYZE THE SPATIAL DISTRIBUTION OF DELIVERY MOTORCYCLE CRASHES AND IDENTIFY THE RELATED FACTORS

    Free access
    I. G. B. Putra / P.-F. Kuo / C.-S. Chiu et al. | DOAJ | 2022
    in terms of log-likelihood, Akaike Information Criterion (AIC), and Root Mean Square Error (RMSE). Furthermore, this research reveals that ...

    ANALYZING IMPACT FACTORS OF AIRPORT TAXIING DELAY BASED ON ADS-B DATA

    Free access
    J. Li / X. Wang / Y. Xu et al. | DOAJ | 2017
    the efficiency of taxiing system. Few of current studies had quantified the potential influencing factors and further investigated their ...

    A new approach for an incremental orientation of micro-UAV image sequences

    Free access
    Reich, Martin / Unger, Jakob / Rottensteiner, Franz et al. | BASE | 2014
    orientation and navigation of these devices in unknown terrain. In this work we focus on on-line compatible positioning in facade observation based on ...
    Publisher: Göttingen : Copernicus GmbH , Institutional Repository of Leibniz Universität Hannover
    Keywords: Orientation and navigation

    AN EXPERIMENTAL EVALUATION OF 3D TERRAIN MAPPING WITH AN AUTONOMOUS HELICOPTER

    Free access
    B. P. Hudzietz / S. Saripalli | DOAJ | 2012
    , high resolution terrain modeling. Current methods of large scale terrain modeling can be cost and time prohibitive. We present a method for ...

    AN INITIAL ALIGNMENT METHOD OF INERTIAL NAVIGATION SYSTEM FOR THE STATIC STATE

    Free access
    H.-Y. Liu / S. Tsai / M.-L. Tsai et al. | DOAJ | 2022
    The navigation means the process of determining the position, velocity, and orientation of the moving object such as the land vehicle ...