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Nagao Lab
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The lab visualizes urban resources and information in order to design a society with a small environmental burden.
AboutAbout the lab
Making urban resources and information visible
The Nagao Lab aims to make the "resources" and "information" buried in cities visible, and to design societies and energy systems with a small environmental burden.
The lab combines vehicle-mounted and airborne laser measurement (LiDAR), 3D city models, and survey and behavioral data in its research.
It works on understanding unused biomass and material stock, analyzing behavior change, and optimizing energy and environmental systems.
Associate Professor Masahiro Nagao serves in the Department of Urban Environmental Studies in the Graduate School of Environmental Studies and in the Department of Natural Informatics in the School of Informatics.
Key terms
- LiDAR
- A measurement technology that uses laser light to measure the distance to and the shape of objects. It is mounted on vehicles and aircraft to measure cities
- Material stock
- Resources stored within a city, such as buildings and infrastructure
- Point cloud data
- Position information of countless points in space obtained by laser measurement. It can represent the shapes of trees and buildings in 3D
- Multivariate analysis
- A method of examining multiple variables together and statistically interpreting the relationships and factors among data
NewsLab news
An undergraduate student received the Outstanding Presentation Award (Fuji Electric Award) at the 2026 Annual Meeting of the Society of Environmental Science, Japan
A researcher received the Research Category Encouragement Award at Pirate Summit 2026
A paper on detecting branch whorls of trees from 3D point clouds was published in Journal of Environmental Information Science
A paper on modeling the structure of leafy trees from point clouds was published in Scientific Reports
A paper on a method for detecting branch whorls from point clouds was published in the proceedings of the 2025 11th International Conference on Robotics and Artificial Intelligence
ResearchResearch themes
The Nagao Lab aims to visualize the resources and information buried in cities and to design societies and energy systems with a small environmental burden. By combining LiDAR, 3D city models, and survey and behavioral data, it works on estimating resource quantities, visualizing urban data, and analyzing behavior change.
*Illustrative imageQuantifying Resource Amounts with Urban Point Clouds
From urban point cloud data obtained by vehicle-mounted LiDAR, airborne laser scanning, and similar methods, the lab quantifies urban resource stocks such as trees, buildings, and infrastructure in 3D. Combining AI and algorithms, it visualizes resources and evaluates their potential.
*Illustrative imageVisualization and Simulation of Urban 3D Data
Using PLATEAU 3D city models and point cloud data, the lab develops systems that visualize urban space digitally. It explores ways to communicate data clearly, such as solar radiation and environmental simulation in Unity and integration with WebGIS.
*Illustrative imageStatistical Modeling of Psychological and Behavioral Data
The lab applies multivariate analysis to survey data to analyze the determinants of pro-environmental behavior and health behavior. It clarifies the mechanisms of behavior change, such as the use of urban resources and eating behavior, and applies the findings to the design of policies and measures.
MembersFaculty
The members of the Nagao Lab consist of faculty, researchers, and doctoral, master's, and undergraduate students.As of 2026
- Associate ProfessorMasahiro Nagao
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Photogrammetry 3D city model of London” AccuCities / CC BY-SA 4.0 (cropped)
- Quantifying Resource Amounts with Urban Point Clouds: “Terrestrial Laser Scanning of a bridge” FedericaGaspari / CC BY-SA 4.0 (cropped)
- Visualization and Simulation of Urban 3D Data: “2016 City of London 3D model” AccuCities / CC BY-SA 4.0 (cropped)
- Statistical Modeling of Psychological and Behavioral Data: “Questionnaire-checklist” https://pixabay.com/users/moteoo-466065/ / CC0 (cropped)
- Related lab (Nishimura Lab): “DWave 128chip” D-Wave Systems, Inc. / CC BY 3.0 (cropped)
- Related lab (Buscemi Lab): “D-Wave Two 512 qubit Vesuvius chip” Steve Jurvetson / CC BY 2.0 (cropped)
- Related lab (Mathematical Information Modeling Lab): “NetworkGraph” Logan Essex / CC BY-SA 4.0 (cropped)
- Related lab (Yagiura Lab): “Server Room ( )” Carl Lender from Sunrise, USA / CC BY 2.0 (cropped)
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