Development of an occupancy measurement system for micro-zones within open office spaces based on multi-view multi-person 3D pose estimation

Chen, Sihua; Fukuda, Tomohiro; Yabuki, Nobuyoshi

doi:https://doi.org/10.1016/j.jobe.2025.113037

Development of an occupancy measurement system for micro-zones within open office spaces based on multi-view multi-person 3D pose estimation

Chen, Sihua; Fukuda, Tomohiro; Yabuki, Nobuyoshi

Journal of Building Engineering, 2025, 111, 113037

アクセス数:47件（2025-11-23 22:46 集計）

固定URL: https://hdl.handle.net/11094/102617

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タイトル	Development of an occupancy measurement system for micro-zones within open office spaces based on multi-view multi-person 3D pose estimation
著者	著者名 Chen, Sihua
	NRID 1000080379114 1000080379114 ORCID 0000-0002-4271-4445 0000-0002-4271-4445 researchmap permalink tomohirofukuda tomohirofukuda Scopus Author ID 57211973503 57211973503 著者名 Fukuda, Tomohiro
	NRID 1000050312434 1000050312434 著者名 Yabuki, Nobuyoshi
キーワード等	3D pose estimation
	Functional zones
	Multi-camera calibration
	Occupancy measurement
	Open office spaces
内容	Chen S., Fukuda T., Yabuki N.. Development of an occupancy measurement system for micro-zones within open office spaces based on multi-view multi-person 3D pose estimation. Journal of Building Engineering 111, 113037 (2025); https://doi.org/10.1016/j.jobe.2025.113037.
抄録	A micro-zone constitutes the fundamental unit of open spaces. Occupancy information of micro-zones with functional attributes is critical for layout optimization, space management, and energy control in open-plan workplaces. However, existing occupancy measurement methods predominantly focus on macro-scales and commonly suffer from reliance on additional devices, rigid behavioral constraints, and limited access to authentic human occupancy data. To address these limitations and bridge the gap in micro-scale occupancy analysis, this study proposes a design framework for occupancy measurement systems to investigate functional zone utilization in open office spaces. The framework takes multi-view RGB images as input, applies 3D pose estimation to infer spatial positions of human joints, and further determines the occupancy state and metrics of the entire space and functional zones by analyzing overlap between projected joint coordinates and zone boundaries. To evaluate the feasibility of the framework, a prototype system is developed and deployed in a small-scale open office space, achieving a Precision of 100 % and an F1 score of 89.19 % in occupancy state measurement. These results demonstrate that the framework effectively supports occupancy surveys of functional zones and holds potential for real-world application. This study presents a low-cost, multi-scale occupancy measurement approach that innovatively introduces pose estimation technology into building occupancy investigation. While enabling holistic spatial occupancy perception, it fills the gap in functional zone analysis. This work provides a theoretical foundation for the development of CCTV-based occupancy measurement methods and offers data support for decision-making in the sustainable design and operation of indoor open office environments.
出版者	Elsevier Ltd
収録物名	Journal of Building Engineering
巻(号)	111
ページ	113037
刊行年月	2025-06-25
言語	英語
ハンドルURL	https://hdl.handle.net/11094/102617
eISSN	23527102
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.jobe.2025.113037
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Journal of Building Engineering. 2025, 111, p. 113037
DC.title	Development of an occupancy measurement system for micro-zones within open office spaces based on multi-view multi-person 3D pose estimation
DC.creator	Chen, Sihua
	Fukuda, Tomohiro
	Yabuki, Nobuyoshi
DC.publisher	Elsevier Ltd
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2025-06-25
DC.identifier	https://doi.org/10.1016/j.jobe.2025.113037
DC.subject	3D pose estimation
	Functional zones
	Multi-camera calibration
	Occupancy measurement
	Open office spaces
DC.description	Chen S., Fukuda T., Yabuki N.. Development of an occupancy measurement system for micro-zones within open office spaces based on multi-view multi-person 3D pose estimation. Journal of Building Engineering 111, 113037 (2025); https://doi.org/10.1016/j.jobe.2025.113037.
DCTERMS.abstract	A micro-zone constitutes the fundamental unit of open spaces. Occupancy information of micro-zones with functional attributes is critical for layout optimization, space management, and energy control in open-plan workplaces. However, existing occupancy measurement methods predominantly focus on macro-scales and commonly suffer from reliance on additional devices, rigid behavioral constraints, and limited access to authentic human occupancy data. To address these limitations and bridge the gap in micro-scale occupancy analysis, this study proposes a design framework for occupancy measurement systems to investigate functional zone utilization in open office spaces. The framework takes multi-view RGB images as input, applies 3D pose estimation to infer spatial positions of human joints, and further determines the occupancy state and metrics of the entire space and functional zones by analyzing overlap between projected joint coordinates and zone boundaries. To evaluate the feasibility of the framework, a prototype system is developed and deployed in a small-scale open office space, achieving a Precision of 100 % and an F1 score of 89.19 % in occupancy state measurement. These results demonstrate that the framework effectively supports occupancy surveys of functional zones and holds potential for real-world application. This study presents a low-cost, multi-scale occupancy measurement approach that innovatively introduces pose estimation technology into building occupancy investigation. While enabling holistic spatial occupancy perception, it fills the gap in functional zone analysis. This work provides a theoretical foundation for the development of CCTV-based occupancy measurement methods and offers data support for decision-making in the sustainable design and operation of indoor open office environments.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	102617
citation_title	Development of an occupancy measurement system for micro-zones within open office spaces based on multi-view multi-person 3D pose estimation
citation_author	Chen, Sihua
	Fukuda, Tomohiro
	Yabuki, Nobuyoshi
citation_publisher	Elsevier Ltd
citation_language	英語
citation_date	2025-06-25
citation_journal_title	Journal of Building Engineering
citation_volume	111
citation_firstpage	113037
citation_doi	https://doi.org/10.1016/j.jobe.2025.113037
citation_public_url	https://hdl.handle.net/11094/102617

Development of an occupancy measurement system for micro-zones within open office spaces based on multi-view multi-person 3D pose estimation

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