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The use of unmanned aerial vehicles (UAVs), commonly referred to as drones, is a rapidly advancing technology. UAVs have become more accessible for urban planning and historic preservation due to their lower cost of acquisition and easier entry requirements for new pilots in comparison to airborne and satellite platforms. The use of 3D modeling has been prevalent in various fields; at present, an expanding trend involves the utilization of 3D modeling technology in the preservation of historical sites. It is possible that detailed and accurate representations of existing buildings could have ethical implications for the development of 3D models. As an example, researchers have pointed limitations or even misrepresentation of buildings in the creation of digital 3D representations. Drone photogrammetry offers enhanced methods to represent existing buildings with in more detail.
Author | Findings | Implications for Future Work | Hardware | Software |
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Karachaliou et al., 2019 [9] | UAV-based photogrammetry is a cost-effective and efficient tool for mapping historic buildings and can produce results from high-quality 3D models to Building Information Models (BIM). | The authors suggest that using Building Information Modeling (BIM) can be beneficial in preserving historical buildings and propose that future research should concentrate on enhancing BIM-based documentation for heritage sites. | DJI Phantom 3 Pro | REVIT Autodesk, Agisoft PhotoScan |
Li, 2018 [10] | A paper on UAV photogrammetry and its implications in urban planning. Oblique photogrammetry can significantly improve mapping accuracy and has more intersection light than vertical photogrammetry, resulting in higher 3D model accuracy. | The potential of oblique photogrammetry in various areas, such as spatial analysis, investigating illegal construction, assisting with planning approval, and safeguarding historical buildings, requires further exploration through research. | NA | NA |
Tariq et al., 2017 [11] | UAV photogrammetry can be used to develop realistic 3D models of archaeological sites with high accuracy to preserve digital 3D models in the management system for future reconstruction of historical sites. | The application of photogrammetry in the management of historical sites can be further explored to make it a mainstream tool for archaeological conservation. | DJI Phantom 4, Sony A5100 | Photoscan |
Berrett et al., 2021 [12] | Automated UAV techniques can be applied along with terrestrial photogrammetry to generate hyper-realistic 3D models that can be used for large-scale university campus planning and historic preservation and public outreach as well as potential virtual reality (VR) and augmented reality (AR) tours. | The application of advanced technologies such as LiDAR in generating 3D models can be further explored to improve accuracy and generate more realistic representations of real-world environments. | DJI Phantom 4 RTK, Inspire 2 with Zenmuse X4S, Nikon D750, Canon EOS 5D Mark III, TOPCON GR-3 GPS unit | Lightroom, ArcGIS Pro, 3D Acute |
Kikuchi et al., 2022 [13] | Augmented reality combined with drones can facilitate public participation in urban design decision-making processes through implementing detailed 3D models of the city (digital twins), which can achieve both first-person and overhead views in outdoor AR with occlusion handling. | There is potential for further exploration of the use of augmented reality in urban planning and design, particularly in enhancing public participation during the decision-making process. | DJI Mavic Mini | SketchUp Make, InfraWorks, OBS Studio for AR |
Erenoglu et al., 2018 [14] | UAV-assisted 3D modeling can be a time-efficient and cost-effective approach for urban planning, and can be used for mapping damages safely and efficiently after natural hazards. | Further research is needed to optimize processing parameters such as camera characteristics, image scale, quality of imagery, and hardware capacity to improve the accuracy of UAV-assisted 3D modeling. | Mikrocopter XL 8, Canon EOS-M, Satlab Sl500 GPS, Kolida KTS-442 RLC station | Agisoft Photoscan, ArcMap |
Zhang et al., 2022 [15] | The use of a telexistence drone system empowered with artificial intelligence and virtual reality can achieve real-time 3D reconstruction with high-quality results. | Further exploration is required to determine the practical applications of the telexistence drone system in data analysis and decision-making. Additionally, efforts can be made to reduce the latency caused by different components of the system to improve its overall performance. | MYNT AI D1000-50/Color stereo camera, ICP Tracker | Agisoft PhotoScan |
Campbell, 2018 [16] | Drone photogrammetry and VR are effective tools for historic preservation efforts, and can provide new data and experiences for decision-making. The generated VR experiences were positively received by government officials and other professionals. | Applying photogrammetry and VR can aid preservation efforts of culturally significant artifacts which developing and refining best practices for photogrammetry and VR workflow in preservation efforts. | DJI Phantom 4 Pro, Canon EOS Rebel DSLR | Autodesk (Recap Photo, 3ds Max), 3DR Site Scan, Visualive3D Mobilive, Geotag Photos, Trimble SketchUp |
Alsadik et al., 2013 [17] | The proposed automated camera network method for 3D modeling of cultural heritage objects showed improved accuracy and average coverage, with a significant reduction in the number of cameras required. | The image orientation steps required for obtaining high-resolution images need improvement in the future, and more reliable bundle adjustment can be achieved by using the sparse bundle adjustment package. | NA | Agisoft Photoscan, Microsoft Photosynth |
Skondras et al., 2022 [18] | UAVs can fly in urban areas where airplanes cannot operate and produce high-resolution 3D modeling; thus, the use of UAVs is expected to increase in the future. | Future studies could investigate the integration of data obtained from the built environment with local spatial knowledge, as well as the creation of georeferenced and scaled models. | DJI Phantom 4 Pro | Pix4D Capture and Mapper, Blender |
Xu et al., 2016 [19] | Using a minimum spanning tree to construct scene correlation network can reduce the computational cost of image matching in Structure-from-Motion (SfM) for 3D scene reconstruction from UAV images while preserving the accuracy and completeness of the final scene geometry. | The computation required for large volumes of images in Structure-from-Motion (SfM)-based methods for 3D scene reconstruction has increased significantly. Future work is needed during the image matching phase, which is among the most time-consuming stages of SfM methods. | Fixed-wing UAV, Canon EOS 5D mark II | Pix4Dmapper, PhotoScan, Micmac |
Ferworn et al., 2011 [20] | Commercial off-the-shelf hardware can be used to create a system that aids in disaster response efforts by allowing for aerial surveying and the creation of 3D models. | A more autonomous system could be developed to improve data quality and consistency, with real-time onboard point cloud modeling used to immediately direct search and rescue efforts. | MK Hexakopter 2 | Microsoft Kinect video game peripheral |
Gatziolis et al., 2015 [21] | GPS-enabled UAVs can be used for precise scaling of reconstructed tree point clouds. Higher image overlap does not significantly improve the accuracy or completeness of tree reconstructions. | Further research is needed for navigation precision in confined areas and obstacle avoidance in forested environments. | APM: Copter, Custom built DJI f550 UAV hexacopter | Mission Planner |
Mohd Noor et al., 2020 [22] | The integration of MLS and UAV data can produce high-quality 3D models of building structures for cultural heritage purposes based on results of Malay cities. | The MLS approach can be expanded to capture other elements of the urban environment, such as vegetation, infrastructure, and natural features. | DJI Phantom 3, Topcon IP-S3 HD laser scanner | Agisoft PhotoScan, ESRI City Engine |
Manajitprasert et al., 2019 [23] | This study found that the UAV–SfM approach is an effective and accurate tool for modeling 3D cultural heritage based on a case study conducted in Thailand. | Subsequent research could explore the incorporation of oblique images to identify and document minute details, thereby enhancing the effectiveness and precision of this technique as a substitute for laser scanning. | DJI Inspire 1 Pro, Riegl LMS-Z210 scanner | Pix4D, CloudCompare |
Remondino, 2011 [24] | The authors found that 3D modeling and scanning technology contributed significantly to the documentation, conservation, and presentation of heritage information. | Developing new algorithms and methodologies can improve the 3D restitution pipeline, increase data storage, and improve the accessibility of geospatial data to non-expert users. | Helicopter, SLR camera | 3D Studio Max, Maya, Sketchup, Blender |
Yan et al., 2021 [25] | Using an optimized trajectory can significantly improve the performance and quality of aerial 3D urban reconstruction. | Future work could focus on further improving the efficiency and accuracy of the proposed method and extending it to other types of scenes. | DJI Phantom 4 Pro | Unreal4, COLMAP |
Koch et al., 2019 [26] | An automatic 3D UAV flight framework can generate high-quality 3D models while ensuring safe flight paths in complex and densely built environments. | Future research could encompass a more flexible strategy for viewpoint placement that includes multiple orientations for each camera viewpoint while taking into account the materials of individual object parts. | DJI Mavic Pro 2 | Pix4D, Blender |
Duan et al., 2021 [27] | UAV data were used to generate a real 3D model and extract the lake boundary, enabling accurate representation of the lake’s actual scene. | Future work could explore the potential of automatic driving technology in lake estimation. | DJI Phantom 4 Pro, Huawei no. 3/Apache 3 | Bentley Context Capture Center 4.4, DP-Modeler 2.3 |
Jo and Hong, 2019 [28] | Combining terrestrial laser scanning and UAV photogrammetry into a hybrid technology can enhance the reliability and applicability of 3D digital documentation and spatial analysis for cultural heritage sites. | Further investigation is required to decrease positional inconsistencies between the two survey technologies and assess how they vary depending on various scales and geomorphic environments. | Leica Aibot X6, Sony Alpha 6000, Trimble R6 Model 3 | Agisoft PhotoScan Profesional Edition |
Papadopoulou et al., 2021 [29] | Using a digital elevation model (DEM) as a source of information for designing UAV flight plans tailored to the topography of each geosite can offer significant advantages over conventional image collection methods. | Subsequent research might focus on developing a fully automated algorithm based on the DEM of the study area. | DJI Phantom 4 Pro | AgiSoft Metashape Professional Edition, ESRI ArcMap, CloudCompare |
Templin and Popielarczyk, 2020 [30] | UAV-based photogrammetry is a cost-effective and efficient approach for accurately scanning, surveying, and capturing reality in 3D when documenting cultural heritage. | Future work could include exploring possibilities of using higher-resolution cameras for better results. | DJI Phantom 4 PRO, Sony RX100 II, Leica ScanStation C10 | CloudCompare, AgiSoft Metashape Professional Edition, Cyclone |
Liang et al., 2017 [31] | This study found that UAV 3D modeling with high-resolution RS data can accurately calculate the three-dimension green quantity (3DGQ) of urban green spaces based on a case study conducted in China. | Future work should include more time points to improve accuracy in the use of 3DGQ in urban green space design and planning. | Zero UAV YS09 | Pix4D |