{"id":38911,"date":"2026-09-07T09:47:26","date_gmt":"2026-09-07T02:47:26","guid":{"rendered":"https:\/\/vmts.ch\/?p=38911"},"modified":"2026-09-07T10:35:35","modified_gmt":"2026-09-07T03:35:35","slug":"hue-citadel-heritage-documentation-ngo-mon","status":"publish","type":"post","link":"https:\/\/vmts.ch\/en\/hue-citadel-heritage-documentation-ngo-mon\/","title":{"rendered":"Heritage Documentation at Hue Imperial Citadel: 3D Laser Scanning at Ng\u1ecd M\u00f4n"},"content":{"rendered":"\n<div style=\"background:#000000;padding:24px 28px;font-family:Arial,Helvetica,sans-serif;border-left:4px solid #C70100;margin:0 0 32px\">\n  <p style=\"font-size:10px;font-weight:700;letter-spacing:0.16em;text-transform:uppercase;color:#C70100;margin:0 0 14px\">In short: 3 points<\/p>\n  <ul style=\"list-style:none;padding:0;margin:0\">\n    <li style=\"display:flex;gap:12px;padding:8px 0;border-bottom:0.5px solid #222222;align-items:flex-start\">\n      <span style=\"color:#C70100;font-weight:700;font-size:13px;flex-shrink:0;margin-top:1px;font-family:Arial,Helvetica,sans-serif\">01<\/span>\n      <p style=\"font-size:13px;color:#cccccc;line-height:1.55;margin:0;font-family:Arial,Helvetica,sans-serif\">VMT Solutions carried out a fully non-invasive heritage status survey of Ng\u1ecd M\u00f4n, the main gate of the Hue Imperial Citadel (UNESCO World Heritage Site) in Vietnam.<\/p>\n    <\/li>\n    <li style=\"display:flex;gap:12px;padding:8px 0;border-bottom:0.5px solid #222222;align-items:flex-start\">\n      <span style=\"color:#C70100;font-weight:700;font-size:13px;flex-shrink:0;margin-top:1px;font-family:Arial,Helvetica,sans-serif\">02<\/span>\n      <p style=\"font-size:13px;color:#cccccc;line-height:1.55;margin:0;font-family:Arial,Helvetica,sans-serif\">The survey combined terrestrial 3D laser scanning, drone photogrammetry and high-resolution photography to record the structure without any physical contact.<\/p>\n    <\/li>\n    <li style=\"display:flex;gap:12px;padding:8px 0;align-items:flex-start\">\n      <span style=\"color:#C70100;font-weight:700;font-size:13px;flex-shrink:0;margin-top:1px;font-family:Arial,Helvetica,sans-serif\">03<\/span>\n      <p style=\"font-size:13px;color:#cccccc;line-height:1.55;margin:0;font-family:Arial,Helvetica,sans-serif\">VMTS has since scanned further monuments in the same complex, including Ki\u1ebfn Trung Palace, and applies the same rigour to heritage projects in Europe.<\/p>\n    <\/li>\n  <\/ul>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7;color:#4A4A4A\">Documenting a historic monument accurately is the first step of any conservation project. It is also one of the hardest, because the structure itself cannot be touched, moved or subjected to destructive measurement. This case study describes how VMT Solutions surveyed Ng\u1ecd M\u00f4n, the principal gate of the Hue Imperial Citadel in Vietnam, using 3D laser scanning, drone photogrammetry and photography, and what that approach delivered for the conservation team.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/vmts.ch\/wp-content\/uploads\/2025\/03\/dam-may-diem-point-cloud-ngo-mon-hue.jpg\" data-orig-src=\"https:\/\/vmts.ch\/wp-content\/uploads\/2025\/03\/dam-may-diem-point-cloud-ngo-mon-hue.jpg\" alt=\"Point cloud of Ng\u1ecd M\u00f4n (Meridian Gate) at the Hue Imperial Citadel from a 3D laser scanning survey\" class=\"lazyload wp-image-29417\" style=\"border-radius:4px\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271024%27%20height%3D%27768%27%20viewBox%3D%270%200%201024%20768%27%3E%3Crect%20width%3D%271024%27%20height%3D%27768%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/vmts.ch\/wp-content\/uploads\/2025\/03\/dam-may-diem-point-cloud-ngo-mon-hue-200x150.jpg 200w, https:\/\/vmts.ch\/wp-content\/uploads\/2025\/03\/dam-may-diem-point-cloud-ngo-mon-hue-300x225.jpg 300w, https:\/\/vmts.ch\/wp-content\/uploads\/2025\/03\/dam-may-diem-point-cloud-ngo-mon-hue-400x300.jpg 400w, https:\/\/vmts.ch\/wp-content\/uploads\/2025\/03\/dam-may-diem-point-cloud-ngo-mon-hue-600x450.jpg 600w, https:\/\/vmts.ch\/wp-content\/uploads\/2025\/03\/dam-may-diem-point-cloud-ngo-mon-hue-768x576.jpg 768w, https:\/\/vmts.ch\/wp-content\/uploads\/2025\/03\/dam-may-diem-point-cloud-ngo-mon-hue-800x600.jpg 800w, https:\/\/vmts.ch\/wp-content\/uploads\/2025\/03\/dam-may-diem-point-cloud-ngo-mon-hue.jpg 1024w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\" style=\"color:#4A4A4A;font-size:13px;font-style:italic\">Point cloud of Ng\u1ecd M\u00f4n (Meridian Gate) from the heritage status survey by VMTS.<\/figcaption><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/vmts.ch\/en\/hue-citadel-heritage-documentation-ngo-mon\/#Project_overview\" >Project overview<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/vmts.ch\/en\/hue-citadel-heritage-documentation-ngo-mon\/#The_challenge_documenting_a_monument_that_cannot_be_touched\" >The challenge: documenting a monument that cannot be touched<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/vmts.ch\/en\/hue-citadel-heritage-documentation-ngo-mon\/#The_approach_terrestrial_scanning_drone_and_photography_combined\" >The approach: terrestrial scanning, drone and photography combined<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/vmts.ch\/en\/hue-citadel-heritage-documentation-ngo-mon\/#A_second_project_in_the_citadel_Kien_Trung_Palace\" >A second project in the citadel: Ki\u1ebfn Trung Palace<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/vmts.ch\/en\/hue-citadel-heritage-documentation-ngo-mon\/#The_result\" >The result<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/vmts.ch\/en\/hue-citadel-heritage-documentation-ngo-mon\/#VMTS_heritage_documentation_Vietnam_and_beyond\" >VMTS heritage documentation: Vietnam and beyond<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/vmts.ch\/en\/hue-citadel-heritage-documentation-ngo-mon\/#Frequently_asked_questions\" >Frequently asked questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/vmts.ch\/en\/hue-citadel-heritage-documentation-ngo-mon\/#Planning_a_heritage_documentation_or_scan-to-BIM_project\" >Planning a heritage documentation or scan-to-BIM project?<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Project_overview\"><\/span>Project overview<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"background:#000000;padding:36px;margin:0 0 24px;border-left:4px solid #C70100;font-family:Arial,Helvetica,sans-serif\">\n  <p style=\"font-size:10px;font-weight:700;letter-spacing:0.16em;text-transform:uppercase;color:#C70100;margin:0 0 10px\">Project reference \u00b7 VMTS<\/p>\n  <p style=\"font-size:20px;color:#ffffff;margin:0 0 20px;line-height:1.25;font-weight:700\">Ng\u1ecd M\u00f4n (Meridian Gate), Hue Imperial Citadel<br><span style=\"font-size:14px;font-weight:400;color:#9E9E9E\">Heritage status survey to support conservation and restoration planning<\/span><\/p>\n  <div style=\"display:flex;gap:40px;margin-bottom:20px;flex-wrap:wrap\">\n    <div><div style=\"font-size:32px;font-weight:700;color:#ffffff;line-height:1\">UNESCO<\/div><div style=\"font-size:11px;color:#9E9E9E;margin-top:4px;text-transform:uppercase;letter-spacing:0.08em\">Complex of Hue Monuments<\/div><\/div>\n    <div><div style=\"font-size:32px;font-weight:700;color:#ffffff;line-height:1\">0 contact<\/div><div style=\"font-size:11px;color:#9E9E9E;margin-top:4px;text-transform:uppercase;letter-spacing:0.08em\">Fully non-invasive survey<\/div><\/div>\n    <div><div style=\"font-size:32px;font-weight:700;color:#ffffff;line-height:1\">TLS + drone + photo<\/div><div style=\"font-size:11px;color:#9E9E9E;margin-top:4px;text-transform:uppercase;letter-spacing:0.08em\">Combined capture methods<\/div><\/div>\n  <\/div>\n  <p style=\"font-size:14px;color:#aaaaaa;line-height:1.7;margin:0\">VMT Solutions recorded the current condition of Ng\u1ecd M\u00f4n with terrestrial 3D laser scanning, drone-based photogrammetry and high-resolution photography, giving the conservation team a reliable geometric reference without any physical contact with the monument.<\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_challenge_documenting_a_monument_that_cannot_be_touched\"><\/span>The challenge: documenting a monument that cannot be touched<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u1ecd M\u00f4n is the main southern gate of the Hue Imperial Citadel, part of the UNESCO-listed Complex of Hue Monuments. Like most heritage structures of its age and status, its current condition has to be recorded precisely before any conservation or restoration work can be scoped, but the survey itself must be entirely non-invasive: no physical measurement on the fabric, no fixings, no contact that could affect the original substance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The gate also combines fine architectural detail at ground level with a large tiled roof structure and upper pavilions that are difficult to reach and to measure from the ground. A single capture method would leave gaps.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_approach_terrestrial_scanning_drone_and_photography_combined\"><\/span>The approach: terrestrial scanning, drone and photography combined<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">VMT Solutions surveyed Ng\u1ecd M\u00f4n with a combination of three techniques, each chosen for what it captures best:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Terrestrial 3D laser scanning<\/strong> for the accessible facades, openings, columns and decorative stonework at and near ground level<\/li>\n<li><strong>Drone photogrammetry<\/strong> for the roof structure, ridge details and upper pavilions that cannot be reached or measured safely from the ground<\/li>\n<li><strong>High-resolution photography<\/strong> for colour, surface condition and material documentation across the whole structure<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The work was carried out by the VMTS team of survey engineers and heritage-survey specialists. None of the methods requires physical contact with the monument, so the entire condition record was produced without touching the original fabric.<\/p>\n\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#F5F5F5;border-left:3px solid #C70100;padding-top:20px;padding-right:24px;padding-bottom:20px;padding-left:24px\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\" style=\"font-size:10px;font-style:normal;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:#C70100\">How VMTS approaches heritage work<\/p>\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:20px;font-weight:700;line-height:1.3;color:#000000\">European documentation standards, applied to Southeast Asian heritage.<\/p>\n\n\n<p class=\"wp-block-paragraph\" style=\"color:#4A4A4A\">VMTS delivers heritage surveys to a standard tolerance of \u00b11.5 cm, with tighter tolerances agreed where restoration with prefabricated components requires it. Point cloud registration is checked by staff with a geodetic background before any deliverable is produced. The same workflow is used across VMTS heritage projects in Vietnam and in Europe.<\/p>\n\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"A_second_project_in_the_citadel_Kien_Trung_Palace\"><\/span>A second project in the citadel: Ki\u1ebfn Trung Palace<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"2560\" height=\"1440\" src=\"https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-scaled.jpg\" data-orig-src=\"https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-scaled.jpg\" alt=\"Ki\u1ebfn Trung Palace in the Hue Imperial Citadel, surveyed by VMT Solutions with 3D laser scanning\" class=\"lazyload wp-image-24946\" style=\"border-radius:4px\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272560%27%20height%3D%271440%27%20viewBox%3D%270%200%202560%201440%27%3E%3Crect%20width%3D%272560%27%20height%3D%271440%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-scaled-200x113.jpg 200w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-300x169.jpg 300w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-400x225.jpg 400w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-scaled-600x338.jpg 600w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-768x432.jpg 768w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-800x450.jpg 800w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-1024x576.jpg 1024w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-1200x675.jpg 1200w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-1536x864.jpg 1536w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/07\/Kien-Trung-Palace-scaled.jpg 2560w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><figcaption class=\"wp-element-caption\" style=\"color:#4A4A4A;font-size:13px;font-style:italic\">Ki\u1ebfn Trung Palace, Hue Imperial Citadel: laser-scanned by VMTS ahead of Festival Hu\u1ebf 2024.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">VMT Solutions has since carried out further scanning inside the citadel complex, including a laser-scanning survey of Ki\u1ebfn Trung Palace ahead of Festival Hu\u1ebf 2024. For that project the client needed a high-accuracy point cloud and mesh model of the palace facade as the basis for a 3D projection-mapping light show. The on-site survey was completed in a single day and the data processed within two days, so the design team could start work on schedule.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The same survey data that supports a projection-mapping design can also serve conservation documentation, virtual tours and, where a project calls for it, a BIM model. The capture is done once; the deliverables follow the use case.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_result\"><\/span>The result<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Ng\u1ecd M\u00f4n survey produced a detailed, accurate record of the gate&#8217;s current condition, giving the conservation team a dependable geometric reference for restoration planning, with no physical contact with the heritage structure at any point. Combined with the later work on Ki\u1ebfn Trung Palace, it is part of a growing VMTS record of 3D documentation inside one of Vietnam&#8217;s most significant heritage sites.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"VMTS_heritage_documentation_Vietnam_and_beyond\"><\/span>VMTS heritage documentation: Vietnam and beyond<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Heritage documentation is a long-standing part of the VMTS portfolio. Alongside the projects in Hue, VMTS has surveyed and modelled heritage buildings in Europe, including <a href=\"https:\/\/vmts.ch\/en\/portfolio\/project-laufen-castle\/\">Schloss Laufen<\/a> in Switzerland, the <a href=\"https:\/\/vmts.ch\/en\/state-library-berlin-scan-to-bim\/\">Staatsbibliothek zu Berlin<\/a> in Germany, the <a href=\"https:\/\/vmts.ch\/en\/portfolio\/le-corbusiers-ronchamp-chapel-point-cloud\/\">Ronchamp Chapel<\/a> by Le Corbusier in France, and the <a href=\"https:\/\/vmts.ch\/en\/scan2cad-for-the-elders-wool-stores-heritage\/\">Elders Wool Stores<\/a> heritage complex in Australia. Where a project requires a native BIM model of a historic building rather than survey documentation alone, that is delivered in Archicad, Revit or Allplan; see our overview of <a href=\"https:\/\/vmts.ch\/en\/scan-to-bim-heritage-buildings\/\">scan-to-BIM for heritage buildings<\/a> and our guide to <a href=\"https:\/\/vmts.ch\/en\/point-cloud-to-archicad-historic-buildings\/\">Point Cloud to Archicad for historic buildings<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Frequently_asked_questions\"><\/span>Frequently asked questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What methods does VMTS use to document heritage buildings?<\/summary>\n\n<p class=\"wp-block-paragraph\">VMTS combines terrestrial 3D laser scanning for accessible detail, drone photogrammetry for rooflines and hard-to-reach elements, and high-resolution photography for surface and material condition. The methods are selected per project so that the full structure is covered without gaps.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Is 3D laser scanning safe for fragile heritage structures?<\/summary>\n\n<p class=\"wp-block-paragraph\">Yes. Terrestrial laser scanning, drone photogrammetry and photography are all non-contact methods. Nothing is fixed to or measured directly on the structure, so the original fabric is not affected by the survey.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Does VMTS produce BIM models from heritage scans?<\/summary>\n\n<p class=\"wp-block-paragraph\">Yes, where a project requires it. VMTS delivers native BIM models of historic buildings in Archicad, Revit or Allplan for European heritage projects. The Ng\u1ecd M\u00f4n and Ki\u1ebfn Trung Palace projects in Hue were delivered as survey documentation and point cloud or mesh data, which is what those projects called for; the same captured data can be modelled into BIM later if needed.<\/p>\n\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Where does VMTS carry out heritage documentation projects?<\/summary>\n\n<p class=\"wp-block-paragraph\">In Vietnam, including the Hue Imperial Citadel, and internationally. VMTS heritage projects include work in Switzerland, Germany, France and Australia, applying the same documentation standards across all locations.<\/p>\n\n<\/details>\n\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#000000;padding:48px\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"wp-block-paragraph\" style=\"font-size:10px;font-style:normal;font-weight:700;letter-spacing:0.16em;text-transform:uppercase;color:#C70100\">Work with VMTS<\/p>\n\n\n<h2 class=\"wp-block-heading\" style=\"color:#ffffff;font-size:24px;font-weight:400;line-height:1.3;border:none\"><span class=\"ez-toc-section\" id=\"Planning_a_heritage_documentation_or_scan-to-BIM_project\"><\/span>Planning a heritage documentation or scan-to-BIM project?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<p class=\"wp-block-paragraph\" style=\"color:#888888;font-size:14px\">Tell us about the structure and what the survey needs to support. We usually reply within one working day with an initial assessment.<\/p>\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button\"><a class=\"fusion-button button-flat button-large button-custom fusion-button-default fusion-button-default-span fusion-button-default-type\" style=\"--button_accent_color:var(--awb-color1);--button_accent_hover_color:var(--awb-color1);--button_border_hover_color:var(--awb-color1);--button_gradient_top_color:var(--awb-custom_color_1);--button_gradient_bottom_color:var(--awb-custom_color_1);--button_gradient_top_color_hover:hsla(var(--awb-custom_color_1-h),var(--awb-custom_color_1-s),calc(var(--awb-custom_color_1-l) - 12%),var(--awb-custom_color_1-a));--button_gradient_bottom_color_hover:hsla(var(--awb-custom_color_1-h),var(--awb-custom_color_1-s),calc(var(--awb-custom_color_1-l) - 12%),var(--awb-custom_color_1-a));--button_text_transform:uppercase;\" target=\"_self\" data-hover=\"icon_slide\" href=\"https:\/\/vmts.ch\/en\/contact-us\/\"><span class=\"fusion-button-text awb-button__text awb-button__text--default\">Contact VMTS<\/span><i class=\"fa-long-arrow-alt-right fas awb-button__icon awb-button__icon--default button-icon-right\" aria-hidden=\"true\"><\/i><\/a><\/div>\n\n<\/div>\n\n<\/div><\/div>\n\n\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Article\",\"headline\":\"Heritage Documentation at Hue Imperial Citadel: 3D Laser Scanning at Ng\u1ecd M\u00f4n\",\"description\":\"VMT Solutions carried out a non-invasive heritage status survey of Ng\u1ecd M\u00f4n, the main gate of the Hue Imperial Citadel (UNESCO World Heritage Site), using terrestrial 3D laser scanning, drone photogrammetry and high-resolution photography to support conservation and restoration planning.\",\"image\":\"https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/Ngo-Mon-Hue-scaled.jpg\",\"author\":{\"@type\":\"Organization\",\"name\":\"VMT Solutions\",\"url\":\"https:\/\/vmts.ch\/en\/\"},\"publisher\":{\"@type\":\"Organization\",\"name\":\"VMT Solutions\",\"url\":\"https:\/\/vmts.ch\/en\/\"},\"about\":[{\"@type\":\"Place\",\"name\":\"Ng\u1ecd M\u00f4n (Meridian Gate), Hue Imperial Citadel, Vietnam\"},{\"@type\":\"Service\",\"name\":\"3D Laser Scanning for Heritage Documentation\",\"url\":\"https:\/\/vmts.ch\/en\/3d-laser-scanning\/\"}]}<\/script>\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>In short: 3 points 01 VMT Solutions carried out a fully non-invasive heritage status survey of Ng\u1ecd M\u00f4n, the main gate of the Hue Imperial Citadel (UNESCO World Heritage Site) in Vietnam. 02 The survey [&#8230;]<\/p>\n","protected":false},"author":2,"featured_media":27880,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[500],"tags":[],"class_list":["post-38911","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-500"],"acf":[],"_links":{"self":[{"href":"https:\/\/vmts.ch\/en\/wp-json\/wp\/v2\/posts\/38911","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vmts.ch\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vmts.ch\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vmts.ch\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vmts.ch\/en\/wp-json\/wp\/v2\/comments?post=38911"}],"version-history":[{"count":5,"href":"https:\/\/vmts.ch\/en\/wp-json\/wp\/v2\/posts\/38911\/revisions"}],"predecessor-version":[{"id":39191,"href":"https:\/\/vmts.ch\/en\/wp-json\/wp\/v2\/posts\/38911\/revisions\/39191"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vmts.ch\/en\/wp-json\/wp\/v2\/media\/27880"}],"wp:attachment":[{"href":"https:\/\/vmts.ch\/en\/wp-json\/wp\/v2\/media?parent=38911"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vmts.ch\/en\/wp-json\/wp\/v2\/categories?post=38911"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vmts.ch\/en\/wp-json\/wp\/v2\/tags?post=38911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}