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View article: Comparative analysis of high-resolution UAV photogrammetry and terrestrial laser scanning for detecting and quantifying urban vegetation changes
Comparative analysis of high-resolution UAV photogrammetry and terrestrial laser scanning for detecting and quantifying urban vegetation changes Open
Extensive urban expansion has significantly impacted green spaces leading to the degradation of urban vegetation. Hence, monitoring variations in vegetation using remote sensing methods is essential. However, 2D remote sensing methods have…
View article: Three-Dimensional Multitemporal Game Engine Visualizations for Watershed Analysis, Lighting Simulation, and Change Detection in Built Environments
Three-Dimensional Multitemporal Game Engine Visualizations for Watershed Analysis, Lighting Simulation, and Change Detection in Built Environments Open
This study explores the reuse of high-resolution 3D spatial datasets for multiple urban analyses within a game engine environment, aligning with circular economy principles in sustainable urban planning. The work is situated in two residen…
View article: Open Geospatial Data Integration in Game Engine for Urban Digital Twin Applications
Open Geospatial Data Integration in Game Engine for Urban Digital Twin Applications Open
Increasing interest has recently been shown towards the digital twins of cities. These urban digital twins utilize 3D city models together with other data sources, such as open data, which can be accessed, e.g., through application program…
View article: Photorealistic 3D mesh model dataset (Helsinki)
Photorealistic 3D mesh model dataset (Helsinki) Open
The dataset contains a photorealistic 3D mesh model from Kalasatama region in Helsinki, Finland. Dataset was created using both terrestrial laser scanning (Leica RTC360) and UAV-based (DJI P4 Pro+) photogrammetry. 3D reconstruction was com…
View article: Photorealistic 3D mesh model dataset (Helsinki)
Photorealistic 3D mesh model dataset (Helsinki) Open
The dataset contains a photorealistic 3D mesh model from Kalasatama region in Helsinki, Finland. Dataset was created using both terrestrial laser scanning (Leica RTC360) and UAV-based (DJI P4 Pro+) photogrammetry. 3D reconstruction was com…
View article: 3D Point Cloud Data in Conveying Information for Local Green Factor Assessment
3D Point Cloud Data in Conveying Information for Local Green Factor Assessment Open
The importance of ensuring the adequacy of urban ecosystem services and green infrastructure has been widely highlighted in multidisciplinary research. Meanwhile, the consolidation of cities has been a dominant trend in urban development a…
View article: Photorealistic and classified urban point cloud dataset (Helsinki)
Photorealistic and classified urban point cloud dataset (Helsinki) Open
The dataset contains a photorealistic and classified urban point cloud from Kalasatama region in Helsinki, Finland. Data was created using both terrestrial laser scanning (Leica RTC360) and UAV-based (DJI P4 Pro+) photogrammetry. 3D recons…
View article: Photorealistic and classified urban point cloud dataset (Helsinki)
Photorealistic and classified urban point cloud dataset (Helsinki) Open
The dataset contains a photorealistic and classified urban point cloud from Kalasatama region in Helsinki, Finland. Data was created using both terrestrial laser scanning (Leica RTC360) and UAV-based (DJI P4 Pro+) photogrammetry. 3D recons…
View article: Utilizing a Terrestrial Laser Scanner for 3D Luminance Measurement of Indoor Environments
Utilizing a Terrestrial Laser Scanner for 3D Luminance Measurement of Indoor Environments Open
We aim to present a method to measure 3D luminance point clouds by applying the integrated high dynamic range (HDR) panoramic camera system of a terrestrial laser scanning (TLS) instrument for performing luminance measurements simultaneous…
View article: B-Hall Sample Areas for Lighting Analysis
B-Hall Sample Areas for Lighting Analysis Open
The data set contains 3D luminance point clouds for lighting analysis. Colums: X Y Z (L) Study Area: B-Hall, a lecture hall at Aalto University, Espoo, Finland.
View article: B-Hall Sample Areas for Lighting Analysis
B-Hall Sample Areas for Lighting Analysis Open
The data set contains 3D luminance point clouds for lighting analysis. Colums: X Y Z (L) Study Area: B-Hall, a lecture hall at Aalto University, Espoo, Finland.
View article: Near Real-Time Semantic View Analysis of 3D City Models in Web Browser
Near Real-Time Semantic View Analysis of 3D City Models in Web Browser Open
3D city models and their browser-based applications have become an increasingly applied tool in the cities. One of their applications is the analysis views and visibility, applicable to property valuation and evaluation of urban green infr…
View article: Creating Open Online Applications with Geospatial Interfaces - Case Study "Palvelututka"
Creating Open Online Applications with Geospatial Interfaces - Case Study "Palvelututka" Open
Three-dimensional city models are an increasingly common data set maintained by many cities globally. At the same time, the focus of research has shifted from their production to their utilization in application development. We present the…
View article: Applying photogrammetry to reconstruct 3D luminance point clouds of indoor environments
Applying photogrammetry to reconstruct 3D luminance point clouds of indoor environments Open
Computer-aided 3D modelling is the standard design method in the architecture, engineering, construction, owner, operator (AECOO) industry and in lighting design. Applying a photogrammetric process, a sequence of images is used to reconstr…
View article: INTERACTIVE GEO-INFORMATION IN VIRTUAL REALITY – OBSERVATIONS AND FUTURE CHALLENGES
INTERACTIVE GEO-INFORMATION IN VIRTUAL REALITY – OBSERVATIONS AND FUTURE CHALLENGES Open
Visualization applications are an increasingly significant component in the field of 3D geo-information. In them, the utilization of consumer grade virtual reality (VR) head mounted displays (HMD) has become a topical research question. It…
View article: Evaluating the Quality of TLS Point Cloud Colorization
Evaluating the Quality of TLS Point Cloud Colorization Open
Terrestrial laser scanning (TLS) enables the efficient production of high-density colored 3D point clouds of real-world environments. An increasing number of applications from visual and automated interpretation to photorealistic 3D visual…
View article: Nighttime Mobile Laser Scanning and 3D Luminance Measurement: Verifying the Outcome of Roadside Tree Pruning with Mobile Measurement of the Road Environment
Nighttime Mobile Laser Scanning and 3D Luminance Measurement: Verifying the Outcome of Roadside Tree Pruning with Mobile Measurement of the Road Environment Open
Roadside vegetation can affect the performance of installed road lighting. We demonstrate a workflow in which a car-mounted measurement system is used to assess the light-obstructing effect of roadside vegetation. The mobile mapping system…
View article: Interactive dense point clouds in a game engine
Interactive dense point clouds in a game engine Open
With the development of 3D measurement systems, dense colored point clouds are increasingly available. However, up to now, their use in interactive applications has been restricted by the lack of support for point clouds in game engines. I…
View article: Automated Multi-Sensor 3D Reconstruction for the Web
Automated Multi-Sensor 3D Reconstruction for the Web Open
The Internet has become a major dissemination and sharing platform for 3D content. The utilization of 3D measurement methods can drastically increase the production efficiency of 3D content in an increasing number of use cases where 3D doc…
View article: Browser based 3D for the built environment
Browser based 3D for the built environment Open
Digital 3D geometric models have become a central tool for geo-information. For many participatory and collaborative applications, distributing these models easily is essential. Several technical solutions exist for creating online systems…
View article: Depth camera indoor mapping for 3D virtual radio play
Depth camera indoor mapping for 3D virtual radio play Open
By combining game engines with indoor mapping, it is possible to create interactive virtual environments that represent the real world. In this paper a virtual version of an audio installation in a historic building is produced, where the …
View article: Characterizing 3D City Modeling Projects: Towards a Harmonized Interoperable System
Characterizing 3D City Modeling Projects: Towards a Harmonized Interoperable System Open
3D city models have become common geospatial data assets for cities that can be utilized in numerous fields, in tasks related to planning, visualization, and decision-making among others. We present a study of 3D city modeling focusing on …