What question did this study set out to answer?

This research aims to develop an efficient workflow for reconstructing multi-level 3D building models by combining LiDAR data and imagery-based building footprints.

August 5, 2026Urban ScienceOpen Access

A Multi-Level 3D Building Reconstruction Framework Integrating LiDAR Point Cloud and Imagery-Based Building Footprints

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Authors

LLLasithasree LakshmananFlorida Atlantic University SNSudhagar NagarajanAtlantic University

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Implication

Randomized trial evaluates a semi-automated framework integrating LiDAR and imagery for accurate building modeling, suggesting enhanced urban planning outcomes.

Key Points

This research aims to develop an efficient workflow for reconstructing multi-level 3D building models by combining LiDAR data and imagery-based building footprints.
Integrated airborne LiDAR point cloud data with building footprints from NAIP imagery using Mask R-CNN.
Implemented a boundary-aware mesh refinement strategy based on ear-clipping triangulation for rooftop continuity.
Quantitatively evaluated the footprint extraction against LiDAR-derived footprints using DBSCAN.
Achieved a mean Intersection over Union (IoU) of 0.8226, indicating effective building delineation.
Generated multi-level building models, enhancing the level of detail from 2D to volumetric representations.
Successfully detected buildings obscured by tree canopy, improving urban modeling accuracy.

Cite This Study

Lakshmanan et al. (2026) studied this question.

synapsesocial.com/papers/6a72e84e226790f370658161 https://doi.org/10.3390/urbansci10080442

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Implication

Randomized trial evaluates a semi-automated framework integrating LiDAR and imagery for accurate building modeling, suggesting enhanced urban planning outcomes.

A Multi-Level 3D Building Reconstruction Framework Integrating LiDAR Point Cloud and Imagery-Based Building Footprints

Discussion

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Implication

Key Points

Cite This Study

A Multi-Level 3D Building Reconstruction Framework Integrating LiDAR Point Cloud and Imagery-Based Building Footprints

Discussion

Member takes

Implication

Key Points

Cite This Study

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