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    Tytuł:
    Aerial survey of the cemetery and surrounding fields at Metsamor
    Autorzy:
    Truszkowski, Marek
    Bagi, Otto
    Powiązania:
    https://bibliotekanauki.pl/articles/1683948.pdf
    Data publikacji:
    2018-07-09
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    aerial photography
    survey
    photogrammetry
    Metsamor
    necropolis
    kurgan
    cromlech
    Karmir-Berd culture
    Lchashen-Metsamor culture
    Opis:
    The first aerial survey conducted within the vicinity of the ancient city of Metsamor and its cemetery detected several promising anomalies in the aerial photos and processed images within and beyond the known limits of the burial ground. The survey results are discussed in this article along with a brief outline of the burial types found in this cemetery.
    Źródło:
    Polish Archaeology in the Mediterranean; 2017, 26(1); 570-578
    1234-5415
    Pojawia się w:
    Polish Archaeology in the Mediterranean
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Badania lotnicze grodu w Czermnie. Wstępne interpretacje i rekonstrukcje wczesnośredniowiecznych założeń kompleksu osadniczego
    AERIAL SURVEYS OF THE EARTHWORK CASTLE IN CZERMNO. PRELIMINARY INTERPRETATIONS AND RECONSTRUCTIONS OF THE EARLY MEDIEVAL ELEMENTS OF THE SETTLEMENT COMPLEX
    Autorzy:
    Poznański, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/498110.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
    Tematy:
    CZERMNO
    CHERVEN/CZERWIEŃ
    ROTBURGENLAND
    AERIAL SURVEY
    AERIAL PHOTOGRAPHY
    Opis:
    Author explores the possibilities of aerial survey over the Early Medieval settlement complex, including castle at Czermno on the Polish-Ukrainian border. Aerial investigations allowed to detect moats and ditches, jetty, earthwork castle buildings, dwellings on the suburb, roads, piers and other constructions. Now it is possible to integrate historical data, results of excavations and mentioned aerial survey into a reconstructed picture of Cherven/Czerwień, presumed capital of Rotburgenland.
    Źródło:
    Analecta Archaeologica Ressoviensia; 2010, 5; 439-456
    2084-4409
    Pojawia się w:
    Analecta Archaeologica Ressoviensia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Accuracy investigation of creating orthophotomaps based on images obtained by applying Trimble-UX5 UAV
    Autorzy:
    Hlotov, V.
    Hunina, A.
    Siejka, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/106820.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    unmanned aerial vehicle
    aerial survey
    digital camera
    orthophotomap
    planned altitude reference
    bezzałogowy statek powietrzny
    pomiary lotnicze
    aparat cyfrowy
    ortofotomapa
    planowana wysokość odniesienia
    Opis:
    The main purpose of this work is to confirm the possibility of making large-scale orthophotomaps applying unmanned aerial vehicle (UAV) Trimble-UX5. A planned altitude reference of the studying territory was carried out before to the aerial surveying. The studying territory has been marked with distinctive checkpoints in the form of triangles (0.5 × 0.5 × 0.2 m). The checkpoints used to precise the accuracy of orthophotomap have been marked with similar triangles. To determine marked reference point coordinates and check-points method of GNSS in real-time kinematics (RTK) measuring has been applied. Projecting of aerial surveying has been done with the help of installed Trimble Access Aerial Imaging, having been used to run out the UX5. Aerial survey out of the Trimble UX5 UAV has been done with the help of the digital camera SONY NEX-5R from 200m and 300 m altitude. These aerial surveying data have been calculated applying special photogrammetric software Pix 4D. The orthophotomap of the surveying objects has been made with its help. To determine the precise accuracy of the got results of aerial surveying the checkpoint coordinates according to the orthophotomap have been set. The average square error has been calculated according to the set coordinates applying GNSS measurements. A-priori accuracy estimation of spatial coordinates of the studying territory using the aerial surveying data have been calculated: mx=0.11 m, my=0.15 m, mz=0.23 m in the village of Remeniv and mx=0.26 m, my=0.38 m, mz=0.43 m in the town of Vynnyky. The accuracy of determining checkpoint coordinates has been investigated using images obtained out of UAV and the average square error of the reference points. Based on comparative analysis of the got results of the accuracy estimation of the made orthophotomap it can be concluded that the value the average square error does not exceed a-priori accuracy estimation. The possibility of applying Trimble UX5 UAV for making large-scale orthophotomaps has been investigated. The aerial surveying output data using UAV can be applied for monitoring potentially dangerous for people objects, the state border controlling, checking out the plots of settlements. Thus, it is important to control the accuracy the got results. Having based on the done analysis and experimental researches it can be concluded that applying UAV gives the possibility to find data more efficiently in comparison with the land surveying methods. As the result, the Trimble UX5 UAV gives the possibility to survey built-up territories with the required accuracy for making orthophotomaps with the following scales 1: 2000, 1: 1000, 1: 500.
    Źródło:
    Reports on Geodesy and Geoinformatics; 2017, 103; 106-118
    2391-8365
    2391-8152
    Pojawia się w:
    Reports on Geodesy and Geoinformatics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fieldwork in 2015/2016 in the Southern Dongola Reach and the Third Cataract Region
    Autorzy:
    Żurawski, Bogdan
    Cedro, Aneta
    Drzewiecki, Mariusz
    Łopaciuk, Roman
    Powiązania:
    https://bibliotekanauki.pl/articles/1684997.pdf
    Data publikacji:
    2018-07-09
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    Middle Nile valley
    Banganarti
    Selib
    fortification
    settlement studies
    medieval Nubia
    3D documentation
    aerial archaeology
    ethnological survey
    conservation and preservation
    heritage studies
    Opis:
    The settlement remains surrounding the churches at the sites of Banganarti and Selib continued to be excavated in the 2015/2016 season by a team directed by Bogdan Żurawski. The research focused primarily on the living quarters around the churches and fortifications. An ethnographic survey carried out in Banganarti and Selib, and in the nearby villages documented traditional crafts, such as pottery making, basketry, baking and cooking using traditional techniques and recipes. Conservation and construction work were undertaken simultaneously with preparations for turning the Banganarti and Selib 1 sites into tourist attractions. Skeletal remains from earlier excavation were examined by a physical anthropologist. A survey combined with aerial documentation was carried out on selected archaeological sites in the Southern Dongola Reach (Soniyat, Diffar, Hettani, Bani Israil) and in the Third Cataract Region (Kissenfarki, Fagirinfenti). Short excavations were also conducted in the temple at Soniyat.
    Źródło:
    Polish Archaeology in the Mediterranean; 2017, 26(1); 269-288
    1234-5415
    Pojawia się w:
    Polish Archaeology in the Mediterranean
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Review on delta wing against other wing designs for micro aerial vehicles
    Autorzy:
    Arun, M. P.
    Satheesh, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2050259.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    micro aerial vehicles
    wing
    delta wing
    materials
    parameters
    survey
    Opis:
    Wings play a vital role in the design of micro aerial vehicles (MAV), in view of aerodynamic performance, maneuverability and hovering capabilities of the vehicles. The wings are generally classified as flapping, delta, swept, and so on. In this paper, the literature is reviewed regarding the diverse techniques utilized for the design, experimentation, analysis, simulation, and modeling of different types of wings. Among these types, this paper focuses on the design of delta wings. Accordingly, we review 60 relevant research papers and provide an analysis, based on their content. First, the paper presents the chronological review of the contributions relevant for the design of different types of wings. Subsequently, we focus on various materials such as stainless steel, aluminum, carbon fiber, etc., and on parameters such as Reynolds number, angle of attack, aspect ratio, etc., which are utilized for the design of wings. The paper also provides a detailed performance study regarding the contribution to the design of delta wing. Finally, we present various research issues, which can be useful for the researchers in accomplishing further research on the design of delta wings.
    Źródło:
    Control and Cybernetics; 2020, 49, 4; 525-553
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The application of ground-based and aerial photos in furveying and vilualizing architectural objects in Mściwojów
    Autorzy:
    Kwoczyńska, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/100534.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
    Tematy:
    architectural survey
    visualization
    ground and aerial photo
    zagospodarowanie przestrzeni
    wizualizacja
    zdjęcia lotnicze
    Opis:
    The article presents the possibility of using pictures taken with aerial and ground-based metric measuring cameras in surveying and visualizing architectural objects. The areas of interest include historic and damaged buildings belonging to the farm complex in Mściwojów, in Lower Silesia. To prepare vector architectural drawings, digital photogrammetric station Delta, as well as a digital autograph VSD were used. The digital terrain model was generated on the basis of aerial photographs, and the visualization of the whole village with the body of water in Mściwojów was developed using MicroStation software.
    Źródło:
    Geomatics, Landmanagement and Landscape; 2013, 1; 41-50
    2300-1496
    Pojawia się w:
    Geomatics, Landmanagement and Landscape
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigating the applicability of unmanned aerial vehicles (uav) photogrammetry for the estimation of the volume of stockpiles
    Autorzy:
    Ajayi, Oluibukun Gbenga
    Ajulo, John
    Powiązania:
    https://bibliotekanauki.pl/articles/1050771.pdf
    Data publikacji:
    2021-03-31
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    stockpiles
    earthworks
    volumetric computations
    ground survey
    UAV photogrammetry
    Opis:
    Accurately estimating the volume of earthworks is very important in mining engineering and construction. This estimation can be difficult because of the morphological condition of the stockpiles, hence, devising simpler, yet accurate methods of stockpile volume estimation is still a research problem in mining. Two non-invasive survey methods were compared in this research: the conventional ground-based and UAV-approach, for the survey of a twin-stockpile of gravel using Leica TS06 Total Station and DJI Mavic Air UAV, respectively. About 128 images of the area were acquired at 50 m flying height and 75% overlap during the flight mission. The images were processed using Agisoft Metashape Pro; a digital photogrammetric software, and the DEM obtained was used for the volume estimation. The total station data was also processed in ArcGIS to generate a TIN-model from which the volume was also estimated. The volume estimated from the TIN-model was compared with the volume estimated from the UAV-based DEM, using the volume obtained from the mill-machine as the standard. The obtained result shows that while 2750 m³ was obtained as the cumulative volume from the mill machine, the UAV approach yielded 2686.252 m³ and the ground survey approach gave 2830.713 m³. The percentage difference between the two methods compared to the actual volume is 2.94% and −2.31%, respectively. These results, and the result of the processing time analysis show that UAV approach is both accurate and time economical, which attests to the potentials of low-cost UAVs to provide robust alternative to the time-consuming and rigorous ground survey approach.
    Źródło:
    Quaestiones Geographicae; 2021, 40, 1; 25-38
    0137-477X
    2081-6383
    Pojawia się w:
    Quaestiones Geographicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Automated UAV to Survey and Monitor Ionising Radiation Levels in a Closed Environment
    Autorzy:
    Anand, R.
    Harshith, Kumar M. B.
    Raghavan, Anirudh
    Maddara, Roopak
    Anand, Prajna
    Powiązania:
    https://bibliotekanauki.pl/articles/2175938.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    unmanned aerial vehicle
    indoor SLAM
    sensor data
    disaster management robot
    path planning
    obstacle avoidance
    Opis:
    Since tragedies caused by nuclear disasters are always a concern, it is essential that nuclear power plants be monitored on a regular basis for any irregularities in ionising radiation levels. Irrespective of leakage proof measures being deployed in the plant, ensuring the safety of these measures is necessary. Given this scenario, the present study proposes the usage of unmanned aerial vehicles (UAVs) to ensure that radiation levels in nuclear plants remain within safe limits. The UAV deployed will map the entire environment following a unique path planning algorithm and monitor the environment with an onboard radiation sensor. If any irregularities are detected, the positional coordinates are flagged, and the A* algorithm is implemented to generate the shortest path between the starting point, and the flagged coordinates, which are considered as the destination coordinates. The UAV is made to traverse the shortest path together with maintaining stability of the system while traversing.
    Źródło:
    Power Electronics and Drives; 2022, 7, 42; 134--145
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The height survey of mount Łysica in the context of verification of geodesical and cartographic studies
    Pomiar wysokościowy góry Łysicy w kontekście weryfikacji opracowań geodezyjno-kartograficznych
    Autorzy:
    Romanyshyn, Ihor
    Hajdukiewicz, Maciej
    Powiązania:
    https://bibliotekanauki.pl/articles/402338.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
    Tematy:
    Aerial Laser Scanning
    DEM
    GNSS static
    lotniczy skaning laserowy
    ALS
    numeryczny model terenu
    NMT
    pomiar statyczny GNSS
    Opis:
    The subject of the article is the measurements of normal height (H) of the western top of Mount Łysica (Świętokrzyskie Mountains, Poland), carried out using the GNSS and geometric leveling methods according to standards for geodetic control network. As the elevation system EN-KRON86-NH was assumed. The reference data was the result of earlier measurements made using different methods: ALS, GNSS RTN and geometric levelling between selected points of Mount Łysica. The analysis of the survey results showed differences between the DEM from ALS measurement and the actual height reaching up to 0.47 m on small boulders and not exceeding the value of 0.17 m in the flat area. Differences between GNSS RTN measurement and geometric leveling based on GNSS static measurement did not exceed 0.03 m. An inventory of former state geodetic control network point “12 Góra Łysica” was also conducted. The point was found to be partially destroyed, and located 12 m south and 1.5 m below the actual top of the mountain. Therefore it was assumed, that a new geodetic control network point should be located on the top for the needs of forest inventory as well as setting the actual height of Mount Łysica.
    W artykule opisano wyniki pomiarów wysokości normalnej H wybranych punktów na wierzchołku zachodnim góry Łysicy w paśmie Łysogór (Góry Świętokrzyskie), przeprowadzone metodami GNSS i niwelacji geometrycznej według standardów dla osnowy wysokościowej. Jako układ wysokościowy przyjęto PL-KRON86-NH, a wyniki zestawiono z wcześniejszymi pomiarami ALS, GNSS RTN i niwelacją geometryczną między wybranymi punktami wysokościowymi na masywie Łysicy. Analiza wyników pomiarów wykazała rozbieżności pomiędzy modelem terenu z pomiaru ALS a wysokością rzeczywistą osiągające wartości do 0,47 m na niewielkich wypukłych formach terenu i nieprzekraczające wartości 0,17 m na terenie płaskim. Rozbieżności pomiędzy pomiarem GNSS RTN a niwelacją geometryczną w oparciu o pomiar GNSS static nie przekraczały wartości 0,03 m. Przeprowadzono również inwentaryzację stanu starego punktu osnowy geodezyjnej 12 góra Łysica. Wobec faktu, że punkt ten jest częściowo zniszczony i znajduje się w odległości 12 m w poziomie i 1,5 m poniżej rzeczywistego wierzchołka, zasadne wydaje się założenie nowego punktu osnowy, który służyłby m.in. pomiarom w ramach inwentaryzacji stanu lasu, a także wyznaczał rzeczywistą wysokość szczytu Łysicy.
    Źródło:
    Structure and Environment; 2019, 11, 2; 153-164
    2081-1500
    Pojawia się w:
    Structure and Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Detecting abuses in archaeological areas using k-mean clustering analysis and UAVs/drones data
    Autorzy:
    Qubaa, Abdalrahman
    Al-Hamdani, Saja
    Powiązania:
    https://bibliotekanauki.pl/articles/35525451.pdf
    Data publikacji:
    2021
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    unmanned aerial vehicles
    k-mean clustering
    unsupervised classification
    Pix4D
    remote sensing
    archaeological survey
    Opis:
    Unmanned aerial vehicles (UAVs) or drones have made great progress in aerial surveys to research and discover heritage sites and archaeological areas, particularly after having developed their technical capabilities to carry various sensors onboard, whether they are conventional cameras, multispectral cameras, and thermal sensors. The objective of this research is to use the drone technology and k-mean clustering algorithm for the first time in Nineveh Governorate in Iraq to reveal the extent of civil excesses and random construction, as well as the looting and theft that occur in the archaeological areas. DJI Phantom 4 Pro drone was used, in addition to using the specialized Pix4D program to process drone images and make mosaics for them. Multiple flights were performed using a drone to survey multiple locations throughout the area and compare them with satellite images during different years. Drone’s data classification was implemented using a k-means clustering algorithm. The results of the data classification for three different time periods indicated that the percentage of archaeological lands decreased from 90.31% in 2004 to 25.29% in 2018. Where the work revealed the extent of the archaeological area’s great violations. The study also emphasized the importance of directing authorities of local antiquities to ensure the use of drone’s technology to obtain statistical and methodological reports periodically to assess archaeological damage and to avoid overtaking, stolen and looted of these sites.
    Źródło:
    Scientific Review Engineering and Environmental Sciences; 2021, 30, 1; 182-194
    1732-9353
    Pojawia się w:
    Scientific Review Engineering and Environmental Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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