A Fast Method for Identifying Room Configurations from Unit Boundaries in Existing Residential Buildings

Prediction of interior room layout from observations on the exterior boundaries of a unit is sometimes needed in cases of emergencies when unit entry is denied. Seeing that 3D laser scanners are becoming smaller, lighter, and easier to carry around, this paper attempts to offer a fast method that ca...

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Main Authors: Chen Chen, Ziwen Liu
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/13/2/357
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author Chen Chen
Ziwen Liu
author_facet Chen Chen
Ziwen Liu
author_sort Chen Chen
collection DOAJ
description Prediction of interior room layout from observations on the exterior boundaries of a unit is sometimes needed in cases of emergencies when unit entry is denied. Seeing that 3D laser scanners are becoming smaller, lighter, and easier to carry around, this paper attempts to offer a fast method that can automatically reconstruct a room model relying merely on the 3D point cloud of the unit boundaries. The method first partitions the building floor space to generate the so-called “room seeds” from the intersections of lines that are extended from the detected wall segments. Then, the grammar approach compares different possible room configurations through a trial-and-error process to find the most possible one. The proposed method is tested on a real residential building case for validation. The proposed method may be useful in emergent cases when exact floor plans are not available. The method can be extended to other Manhattan-type buildings as long as the grammar rules are settled.
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spelling doaj.art-f039da4d1e5d47dc975d68ce1788b34b2023-11-16T19:31:27ZengMDPI AGBuildings2075-53092023-01-0113235710.3390/buildings13020357A Fast Method for Identifying Room Configurations from Unit Boundaries in Existing Residential BuildingsChen Chen0Ziwen Liu1College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, ChinaSchool of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, SingaporePrediction of interior room layout from observations on the exterior boundaries of a unit is sometimes needed in cases of emergencies when unit entry is denied. Seeing that 3D laser scanners are becoming smaller, lighter, and easier to carry around, this paper attempts to offer a fast method that can automatically reconstruct a room model relying merely on the 3D point cloud of the unit boundaries. The method first partitions the building floor space to generate the so-called “room seeds” from the intersections of lines that are extended from the detected wall segments. Then, the grammar approach compares different possible room configurations through a trial-and-error process to find the most possible one. The proposed method is tested on a real residential building case for validation. The proposed method may be useful in emergent cases when exact floor plans are not available. The method can be extended to other Manhattan-type buildings as long as the grammar rules are settled.https://www.mdpi.com/2075-5309/13/2/357existing buildingsgrammar approachprediction methodpoint cloudroom modelreconstruction
spellingShingle Chen Chen
Ziwen Liu
A Fast Method for Identifying Room Configurations from Unit Boundaries in Existing Residential Buildings
Buildings
existing buildings
grammar approach
prediction method
point cloud
room model
reconstruction
title A Fast Method for Identifying Room Configurations from Unit Boundaries in Existing Residential Buildings
title_full A Fast Method for Identifying Room Configurations from Unit Boundaries in Existing Residential Buildings
title_fullStr A Fast Method for Identifying Room Configurations from Unit Boundaries in Existing Residential Buildings
title_full_unstemmed A Fast Method for Identifying Room Configurations from Unit Boundaries in Existing Residential Buildings
title_short A Fast Method for Identifying Room Configurations from Unit Boundaries in Existing Residential Buildings
title_sort fast method for identifying room configurations from unit boundaries in existing residential buildings
topic existing buildings
grammar approach
prediction method
point cloud
room model
reconstruction
url https://www.mdpi.com/2075-5309/13/2/357
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