Quality Analysis on 3d Buidling Models Reconstructed From Uav Imagery

Jarzabek-Rychard, M.; Karpina, M.

doi:10.5194/isprsarchives-xli-b1-1121-2016

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…A distance of 15 km was covered in half a day, with the respective point clouds measured at a point spacing of approximately 4 cm. There were up to 793 images registered by the flight with an overlap of 80% and 60% for longitudinal and side-direction, respectively [44][45][46][47]. Numerous building dimensions were determined from these aerial photos, with the largest height appraisal error being 0.2 m. The data of the overall ground façades of the traditional Malay settlements were collected using MLSs.…”

Section: Methodsmentioning

confidence: 99%

Information Fusion for Cultural Heritage Three-Dimensional Modeling of Malay Cities

Ibrahim

Abdullah

2020

IJGI

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Malaysia’s heritage structures are facing challenges due to rapid local development and societal challenges that threaten their cultural and artistic values. Improving conservation approaches in this context is an urgent and crucial task. The application of geo-information technologies in laser scanning, photogrammetry, and geographic information systems (GISs) has significantly improved these conservation approaches. In this study, we fused drone images and range data from a laser scanner to construct a high-resolution three-dimensional GIS city model for one traditional Malay settlement located in Malaysia. The results showed that fusing photogrammetry and laser scanning can effectively capture the architectural uniqueness of Malay buildings, including specific façade geometries on walls, roofs, and motifs. The findings show that the development of various geoinformation approaches can assist with the conservation of Malay city heritage in this region.

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Section: Methodsmentioning

confidence: 99%

Information Fusion for Cultural Heritage Three-Dimensional Modeling of Malay Cities

Ibrahim

Abdullah

2020

IJGI

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UAV-Borne photogrammetry: a low cost 3D surveying methodology for cartographic update

Crepaldi

Piemonte

Nespoli³

2017

MATEC Web Conf.

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Abstract. Territorial management requires the most possible up-to-date mapping support of the status quo. Regional scale cartography update cycle is in the medium term (10 to 15 years): therefore, in the intervening time between updates relevant Authorities must provide timely updates for new works or territorial changes. Required surveys can exploit several technologies: ground-based GPS, Terrestrial Laser Scanning (TLS), traditional topography, or, in the case of wider areas, airborne photogrammetry or laser scanning. In recent years UAV-based photogrammetry is becoming increasingly widespread as a versatile, lowcost surveying system for small to medium areas. This surveying methodology was used to generate, in order, a dense point cloud, a high resolution Digital Surface Model (DSM) and an orthophotograph of a newly built marina by the mouth of the Arno river in Pisa, Italy, which is not yet included in cartography. Surveying activities took place while the construction site was in operation. Case study issues surfaced in the course of the survey are presented and discussed, suggesting 'good practice' rules which, if followed in the survey planning step, can lessen unwanted effects due to criticalities. Besides, results of quality analysis of orthophotographs generated by UAV-borne images are also presented. Such results are discussed in view of a possible use of orthophotographs in updating medium-to large-scale cartography and checked against existing blueprints.

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Level of detail (LoD) geometric analysis of relief mapping employing 3D modeling via UAV images in cultural heritage studies

Ergun,

Sahin,

Bilucan

2023

Herit Sci

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Unmanned Aerial Vehicles (UAVs) are often preferred for modeling cultural heritage buildings due to their costs and time savings. The need for data collection, analysis, processing, and visual presentation in the context of cultural heritage buildings has become prominent, underscoring the significance of the concept of Level of Detail (LoD). The utilization of CityGML LoD standards enhances the performance of visual presentations, decreases the geometric complexity of objects, and enables users to view the model at the desired level of detail within a computerized environment. Within the scope of this study, it is aimed to determine the accuracy analysis of the 3D model for a cultural building, which is named Hekimbaşı Hunting Lodge, at different LoDs. Drawings were created at LoD 0-1-2-3 levels with 418 photographs taken by the UAV photogrammetry method. Additionally, conservative and UAV measures of facade detail at the same LoD were compared in terms of accuracy. As a result, RMSE values for X, Y, and Z axes at LoD3 standard were calculated as 1.394 cm, 0.861 cm, and 0.694 cm, respectively. It has been concluded that the high-accuracy LoD models for the cultural building could be produced using the UAV photogrammetry method at the desired accuracy.

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Quality Analysis on 3d Buidling Models Reconstructed From Uav Imagery

Cited by 3 publications

References 8 publications

Information Fusion for Cultural Heritage Three-Dimensional Modeling of Malay Cities

Information Fusion for Cultural Heritage Three-Dimensional Modeling of Malay Cities

UAV-Borne photogrammetry: a low cost 3D surveying methodology for cartographic update

Level of detail (LoD) geometric analysis of relief mapping employing 3D modeling via UAV images in cultural heritage studies

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