A Macao Case Study in Architectural Heritage Conservation: The Application of a Lightweight Integrated Method with 3D Laser Scanning and Non-Destructive Diagnosis

A Macao Case Study in Architectural Heritage Conservation: The Application of a Lightweight Integrated Method with 3D Laser Scanning and Non-Destructive Diagnosis | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article A Macao Case Study in Architectural Heritage Conservation: The Application of a Lightweight Integrated Method with 3D Laser Scanning and Non-Destructive Diagnosis Yiru ZHENG, Guang Huang, Meng Wang, Yalong Xing, Wei Liu, KamKin Lao This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7708255/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 23 Mar, 2026 Read the published version in npj Heritage Science → Version 1 posted 11 You are reading this latest preprint version Abstract This study focuses on the Temple of Kuan Tai and Tin Hau in Taipa, Macau, employing a lightweight integrated approach that combines portable 3D laser scanning and non-destructive testing technologies to achieve high-precision digital documentation and pathological diagnosis of architectural heritage. Through multi-station scanning and point cloud registration, millimeter-level overall accuracy was attained, enabling semantic segmentation and digital archiving of the architectural point cloud. Multi-source data analysis revealed that incense-induced pollutants, under high-humidity conditions, trigger sulfate-based corrosion as the primary mechanism of material deterioration. The integrated methodology, with a total equipment weight of approximately 4 kg, is operationally efficient and minimally invasive, significantly enhancing on-site workflow. This approach provides a reliable scientific basis and technical support for the preventive conservation and digital management of architectural heritage in high-density urban environments. Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 23 Mar, 2026 Read the published version in npj Heritage Science → Version 1 posted Editorial decision: Revision requested 20 Oct, 2025 Reviews received at journal 19 Oct, 2025 Reviews received at journal 17 Oct, 2025 Reviews received at journal 16 Oct, 2025 Reviewers agreed at journal 02 Oct, 2025 Reviewers agreed at journal 27 Sep, 2025 Reviewers agreed at journal 26 Sep, 2025 Reviewers invited by journal 26 Sep, 2025 Editor assigned by journal 25 Sep, 2025 Submission checks completed at journal 25 Sep, 2025 First submitted to journal 24 Sep, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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