{"id":31084,"date":"2025-06-17T10:42:45","date_gmt":"2025-06-17T03:42:45","guid":{"rendered":"https:\/\/vmts.ch\/?p=31084"},"modified":"2025-06-17T10:42:45","modified_gmt":"2025-06-17T03:42:45","slug":"nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh","status":"publish","type":"post","link":"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/","title":{"rendered":"Nh\u1eefng L\u1ed7i Th\u01b0\u1eddng G\u1eb7p Khi Qu\u00e9t 3D \u2013 Nguy\u00ean Nh\u00e2n, H\u1eadu Qu\u1ea3 V\u00e0 C\u00e1ch Ph\u00f2ng Tr\u00e1nh"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">C\u00f4ng ngh\u1ec7 <\/span><b>qu\u00e9t 3D laser<\/b><span style=\"font-weight: 400;\"> (3D Laser Scanning) \u0111ang tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00e1c l\u0129nh v\u1ef1c x\u00e2y d\u1ef1ng, ki\u1ebfn tr\u00fac, b\u1ea3o t\u1ed3n di s\u1ea3n v\u00e0 c\u00f4ng nghi\u1ec7p. V\u1edbi kh\u1ea3 n\u0103ng ghi l\u1ea1i h\u00e0ng tri\u1ec7u \u0111i\u1ec3m d\u1eef li\u1ec7u ch\u00ednh x\u00e1c trong th\u1eddi gian ng\u1eafn, qu\u00e9t 3D mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch v\u01b0\u1ee3t tr\u1ed9i nh\u01b0 gi\u1ea3m th\u1eddi gian kh\u1ea3o s\u00e1t, t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c, h\u1ed7 tr\u1ee3 thi\u1ebft k\u1ebf v\u00e0 ki\u1ec3m tra thi c\u00f4ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tuy nhi\u00ean, n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u00fang k\u1ef9 thu\u1eadt v\u00e0 quy tr\u00ecnh, qu\u00e1 tr\u00ecnh qu\u00e9t 3D c\u00f3 th\u1ec3 ph\u00e1t sinh nh\u1eefng l\u1ed7i nghi\u00eam tr\u1ecdng, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn to\u00e0n b\u1ed9 k\u1ebft qu\u1ea3 d\u1ef1 \u00e1n. Qua b\u00e0i vi\u1ebft n\u00e0y <a href=\"https:\/\/vmts.ch\/\">VMT SOLUTIONS<\/a> s\u1ebd ph\u00e2n t\u00edch <\/span><b>nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi qu\u00e9t 3D<\/b><span style=\"font-weight: 400;\">, nguy\u00ean nh\u00e2n, h\u1eadu qu\u1ea3 v\u00e0 c\u00e1ch ph\u00f2ng tr\u00e1nh \u0111\u1ec3 gi\u00fap b\u1ea1n t\u1ed1i \u01b0u hi\u1ec7u qu\u1ea3 c\u1ee7a c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i n\u00e0y.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 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\" style=\"cursor:inherit\">N\u1ed9i Dung B\u00e0i Vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#Tong_quan_quy_trinh_quet_3D\" >T\u1ed5ng quan quy tr\u00ecnh qu\u00e9t 3D<\/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\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#Nhung_loi_thuong_gap_khi_quet_3D\" >Nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi qu\u00e9t 3D<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#1_Loi_trong_khau_chuan_bi_hien_truong\" >1. L\u1ed7i trong kh\u00e2u chu\u1ea9n b\u1ecb hi\u1ec7n tr\u01b0\u1eddng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#2_Loi_khi_dat_va_hieu_chuan_may_quet\" >2. L\u1ed7i khi \u0111\u1eb7t v\u00e0 hi\u1ec7u chu\u1ea9n m\u00e1y qu\u00e9t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#3_Loi_khi_thuc_hien_quet\" >3. L\u1ed7i khi th\u1ef1c hi\u1ec7n qu\u00e9t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#4_Loi_trong_qua_trinh_dang_ky_du_lieu_registration\" >4. L\u1ed7i trong qu\u00e1 tr\u00ecnh \u0111\u0103ng k\u00fd d\u1eef li\u1ec7u (registration)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#5_Loi_khi_xu_ly_du_lieu_point_cloud\" >5. L\u1ed7i khi x\u1eed l\u00fd d\u1eef li\u1ec7u point cloud<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#6_Loi_khi_kiem_tra_va_ban_giao\" >6. L\u1ed7i khi ki\u1ec3m tra v\u00e0 b\u00e0n giao<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#Hau_qua_khi_mac_loi_trong_quet_3D\" >H\u1eadu qu\u1ea3 khi m\u1eafc l\u1ed7i trong qu\u00e9t 3D<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#Cach_han_che_va_phong_tranh_loi_khi_quet_3D\" >C\u00e1ch h\u1ea1n ch\u1ebf v\u00e0 ph\u00f2ng tr\u00e1nh l\u1ed7i khi qu\u00e9t 3D<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#%E2%9C%85_Chuan_bi_ky_truoc_khi_quet\" >\u2705 Chu\u1ea9n b\u1ecb k\u1ef9 tr\u01b0\u1edbc khi qu\u00e9t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#%E2%9C%85_Kiem_tra_va_hieu_chuan_thiet_bi\" >\u2705 Ki\u1ec3m tra v\u00e0 hi\u1ec7u chu\u1ea9n thi\u1ebft b\u1ecb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#%E2%9C%85_Quan_ly_quy_trinh_chat_che\" >\u2705 Qu\u1ea3n l\u00fd quy tr\u00ecnh ch\u1eb7t ch\u1ebd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#%E2%9C%85_Kiem_tra_cheo_va_nghiem_thu\" >\u2705 Ki\u1ec3m tra ch\u00e9o v\u00e0 nghi\u1ec7m thu<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/vmts.ch\/vi\/nhung-loi-thuong-gap-khi-quet-3d-nguyen-nhan-hau-qua-va-cach-phong-tranh\/#Dich_vu_quet_3D_chinh_xac_chuyen_nghiep_tu_VMT_Solutions\" >D\u1ecbch v\u1ee5 qu\u00e9t 3D ch\u00ednh x\u00e1c &amp; chuy\u00ean nghi\u1ec7p t\u1eeb VMT Solutions<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Tong_quan_quy_trinh_quet_3D\"><\/span><b>T\u1ed5ng quan quy tr\u00ecnh qu\u00e9t 3D<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Tr\u01b0\u1edbc khi t\u00ecm hi\u1ec3u c\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn, c\u1ea7n n\u1eafm r\u00f5 c\u00e1c b\u01b0\u1edbc ch\u00ednh trong m\u1ed9t quy tr\u00ecnh qu\u00e9t 3D ho\u00e0n ch\u1ec9nh:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Kh\u1ea3o s\u00e1t hi\u1ec7n tr\u01b0\u1eddng<\/b><span style=\"font-weight: 400;\">: \u0110\u00e1nh gi\u00e1 v\u1ecb tr\u00ed \u0111\u1eb7t thi\u1ebft b\u1ecb, m\u00f4i tr\u01b0\u1eddng \u00e1nh s\u00e1ng, v\u1eadt c\u1ea3n&#8230;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u0110\u1eb7t m\u00e1y v\u00e0 hi\u1ec7u ch\u1ec9nh<\/b><span style=\"font-weight: 400;\">: C\u0103n ch\u1ec9nh \u0111\u1ed9 cao, ph\u01b0\u01a1ng v\u1ecb, \u0111\u1ea3m b\u1ea3o v\u00f9ng nh\u00ecn t\u1ed1i \u01b0u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Qu\u00e9t th\u1ef1c t\u1ebf<\/b><span style=\"font-weight: 400;\">: Ghi nh\u1eadn d\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u tr\u1ea1m qu\u00e9t.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u0110\u0103ng k\u00fd (Registration)<\/b><span style=\"font-weight: 400;\">: Gh\u00e9p c\u00e1c d\u1eef li\u1ec7u qu\u00e9t th\u00e0nh m\u1ed9t t\u1eadp h\u1ee3p th\u1ed1ng nh\u1ea5t.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>X\u1eed l\u00fd point cloud<\/b><span style=\"font-weight: 400;\">: L\u1ecdc nhi\u1ec5u, t\u00e1ch l\u1edbp, d\u1ef1ng m\u00f4 h\u00ecnh 3D ho\u1eb7c b\u1ea3n v\u1ebd as-built.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ki\u1ec3m tra v\u00e0 b\u00e0n giao d\u1eef li\u1ec7u<\/b><span style=\"font-weight: 400;\">: \u0110\u1ea3m b\u1ea3o \u0111\u1ea7u ra \u0111\u00fang y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt v\u00e0 ph\u1ea7n m\u1ec1m.<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">Sai s\u00f3t c\u00f3 th\u1ec3 x\u1ea3y ra \u1edf b\u1ea5t k\u1ef3 giai \u0111o\u1ea1n n\u00e0o trong quy tr\u00ecnh n\u00e0y n\u1ebfu kh\u00f4ng ki\u1ec3m so\u00e1t t\u1ed1t.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Nhung_loi_thuong_gap_khi_quet_3D\"><\/span><b>Nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi qu\u00e9t 3D<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-31092\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271920%27%20height%3D%271080%27%20viewBox%3D%270%200%201920%201080%27%3E%3Crect%20width%3D%271920%27%20height%3D%271080%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-orig-src=\"https:\/\/vmts.ch\/wp-content\/uploads\/2025\/06\/nhung-loi-thuong-gap-khi-quet-3d-VMT-SOLUTIONS.jpg\" alt=\"Nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi qu\u00e9t 3D c\u00f4ng tr\u00ecnh\" width=\"1920\" height=\"1080\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Loi_trong_khau_chuan_bi_hien_truong\"><\/span><b>1. L\u1ed7i trong kh\u00e2u chu\u1ea9n b\u1ecb hi\u1ec7n tr\u01b0\u1eddng<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><b>\u274c Kh\u00f4ng kh\u1ea3o s\u00e1t m\u1eb7t b\u1eb1ng tr\u01b0\u1edbc khi qu\u00e9t<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">Vi\u1ec7c kh\u00f4ng kh\u1ea3o s\u00e1t s\u01a1 b\u1ed9 hi\u1ec7n tr\u01b0\u1eddng d\u1ec5 d\u1eabn \u0111\u1ebfn \u0111\u1eb7t m\u00e1y \u1edf v\u1ecb tr\u00ed b\u1ecb che khu\u1ea5t, b\u1ecf s\u00f3t khu v\u1ef1c quan tr\u1ecdng ho\u1eb7c kh\u00f4ng l\u01b0\u1eddng tr\u01b0\u1edbc c\u00e1c y\u1ebfu t\u1ed1 g\u00e2y nhi\u1ec5u nh\u01b0 \u00e1nh s\u00e1ng ph\u1ea3n chi\u1ebfu, b\u1ec1 m\u1eb7t k\u00ednh, n\u01b0\u1edbc&#8230;<\/span><\/p>\n<h4><b>\u274c Thi\u1ebfu ph\u01b0\u01a1ng \u00e1n d\u1ef1 ph\u00f2ng<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">Trong m\u1ed9t s\u1ed1 m\u00f4i tr\u01b0\u1eddng ph\u1ee9c t\u1ea1p (c\u00f4ng tr\u00ecnh \u0111ang thi c\u00f4ng, h\u1ea7m ng\u1ea7m&#8230;), n\u1ebfu kh\u00f4ng chu\u1ea9n b\u1ecb \u0111\u1ee7 pin, th\u1ebb nh\u1edb, ch\u00e2n m\u00e1y, thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3&#8230; s\u1ebd l\u00e0m gi\u00e1n \u0111o\u1ea1n ho\u1eb7c l\u00e0m sai l\u1ec7ch to\u00e0n b\u1ed9 bu\u1ed5i qu\u00e9t.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Loi_khi_dat_va_hieu_chuan_may_quet\"><\/span><b>2. L\u1ed7i khi \u0111\u1eb7t v\u00e0 hi\u1ec7u chu\u1ea9n m\u00e1y qu\u00e9t<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><b>\u274c \u0110\u1eb7t m\u00e1y sai v\u1ecb tr\u00ed, g\u00f3c qu\u00e9t kh\u00f4ng t\u1ed1i \u01b0u<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">M\u1ed9t trong nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 <\/span><b>b\u1ed1 tr\u00ed tr\u1ea1m qu\u00e9t kh\u00f4ng \u0111\u1ee7 bao ph\u1ee7 kh\u00f4ng gian<\/b><span style=\"font-weight: 400;\">, ho\u1eb7c \u0111\u1eb7t qu\u00e1 s\u00e1t v\u1eadt th\u1ec3 d\u1eabn \u0111\u1ebfn m\u1ea5t d\u1eef li\u1ec7u. G\u00f3c \u0111\u1eb7t m\u00e1y kh\u00f4ng \u0111\u00fang c\u0169ng g\u00e2y sai l\u1ec7ch h\u00ecnh h\u1ecdc.<\/span><\/p>\n<h4><b>\u274c Kh\u00f4ng hi\u1ec7u chu\u1ea9n thi\u1ebft b\u1ecb<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">M\u00e1y qu\u00e9t laser c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c. Vi\u1ec7c s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb b\u1ecb l\u1ec7ch chu\u1ea9n ho\u1eb7c c\u1ea3m bi\u1ebfn kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u s\u1ebd \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn d\u1eef li\u1ec7u thu \u0111\u01b0\u1ee3c.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Loi_khi_thuc_hien_quet\"><\/span><b>3. L\u1ed7i khi th\u1ef1c hi\u1ec7n qu\u00e9t<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><b>\u274c Qu\u00e9t thi\u1ebfu v\u00f9ng, m\u1ea5t d\u1eef li\u1ec7u<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">N\u1ebfu ng\u01b0\u1eddi v\u1eadn h\u00e0nh kh\u00f4ng ki\u1ec3m tra k\u1ef9 v\u00f9ng bao ph\u1ee7 gi\u1eefa c\u00e1c tr\u1ea1m qu\u00e9t, r\u1ea5t d\u1ec5 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng <\/span><b>l\u1ed7 d\u1eef li\u1ec7u (missing data)<\/b><span style=\"font-weight: 400;\"> \u1edf nh\u1eefng khu v\u1ef1c khu\u1ea5t nh\u01b0 g\u00f3c tr\u1ea7n, tr\u1ee5, ho\u1eb7c sau v\u1eadt ch\u1eafn.<\/span><\/p>\n<h4><b>\u274c Nhi\u1ec5u do chuy\u1ec3n \u0111\u1ed9ng trong qu\u00e1 tr\u00ecnh qu\u00e9t<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">Ng\u01b0\u1eddi \u0111i l\u1ea1i, xe ch\u1ea1y, \u00e1nh s\u00e1ng thay \u0111\u1ed5i&#8230; c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c \u0111\u1ed1m d\u1eef li\u1ec7u sai l\u1ec7ch, g\u1ecdi l\u00e0 <\/span><b>noise points<\/b><span style=\"font-weight: 400;\">. N\u1ebfu kh\u00f4ng x\u1eed l\u00fd sau qu\u00e9t, nh\u1eefng nhi\u1ec5u n\u00e0y s\u1ebd g\u00e2y kh\u00f3 kh\u0103n trong d\u1ef1ng m\u00f4 h\u00ecnh.<\/span><\/p>\n<h4><b>\u274c Thi\u1ebft l\u1eadp sai th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">Th\u00f4ng s\u1ed1 nh\u01b0 <\/span><b>\u0111\u1ed9 ph\u00e2n gi\u1ea3i (resolution), kho\u1ea3ng c\u00e1ch \u0111i\u1ec3m (point spacing), t\u1ea7n s\u1ed1 qu\u00e9t<\/b><span style=\"font-weight: 400;\"> n\u1ebfu kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi lo\u1ea1i c\u00f4ng tr\u00ecnh s\u1ebd g\u00e2y th\u1eeba ho\u1eb7c thi\u1ebfu d\u1eef li\u1ec7u, l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh x\u1eed l\u00fd.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Loi_trong_qua_trinh_dang_ky_du_lieu_registration\"><\/span><b>4. L\u1ed7i trong qu\u00e1 tr\u00ecnh \u0111\u0103ng k\u00fd d\u1eef li\u1ec7u (registration)<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><b>\u274c S\u1eed d\u1ee5ng qu\u00e1 \u00edt \u0111i\u1ec3m ki\u1ec3m so\u00e1t<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">Registration l\u00e0 qu\u00e1 tr\u00ecnh gh\u00e9p n\u1ed1i c\u00e1c point cloud t\u1eeb nhi\u1ec1u v\u1ecb tr\u00ed qu\u00e9t. N\u1ebfu kh\u00f4ng \u0111\u1eb7t \u0111\u1ee7 \u0111i\u1ec3m target ho\u1eb7c kh\u00f4ng nh\u1eadn di\u1ec7n \u0111\u1ee7 feature t\u01b0\u01a1ng \u0111\u1ed3ng, d\u1eef li\u1ec7u s\u1ebd b\u1ecb l\u1ec7ch ho\u1eb7c kh\u00f4ng gh\u00e9p \u0111\u01b0\u1ee3c.<\/span><\/p>\n<h4><b>\u274c Kh\u00f4ng ki\u1ec3m tra sai l\u1ec7ch gi\u1eefa c\u00e1c l\u1ea7n qu\u00e9t<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">Vi\u1ec7c b\u1ecf qua b\u01b0\u1edbc <\/span><b>ki\u1ec3m tra sai s\u1ed1 sau registration<\/b><span style=\"font-weight: 400;\"> khi\u1ebfn c\u00e1c \u0111o\u1ea1n d\u1eef li\u1ec7u b\u1ecb l\u1ec7ch tr\u1ee5c, nghi\u00eang ho\u1eb7c co gi\u00e3n, g\u00e2y sai s\u1ed1 to\u00e0n m\u00f4 h\u00ecnh.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Loi_khi_xu_ly_du_lieu_point_cloud\"><\/span><b>5. L\u1ed7i khi x\u1eed l\u00fd d\u1eef li\u1ec7u point cloud<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><b>\u274c Kh\u00f4ng l\u1ecdc nhi\u1ec5u v\u00e0 t\u1ed1i \u01b0u d\u1eef li\u1ec7u<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">Point cloud nguy\u00ean b\u1ea3n r\u1ea5t n\u1eb7ng (c\u00f3 th\u1ec3 h\u00e0ng tr\u0103m tri\u1ec7u \u0111i\u1ec3m). N\u1ebfu kh\u00f4ng x\u1eed l\u00fd l\u1ecdc nhi\u1ec5u, t\u00e1ch l\u1edbp, gi\u1ea3m m\u1eadt \u0111\u1ed9 h\u1ee3p l\u00fd, s\u1ebd g\u00e2y kh\u00f3 kh\u0103n khi d\u1ef1ng m\u00f4 h\u00ecnh ho\u1eb7c nh\u1eadp v\u00e0o ph\u1ea7n m\u1ec1m BIM.<\/span><\/p>\n<h4><b>\u274c Sai s\u00f3t khi d\u1ef1ng m\u00f4 h\u00ecnh t\u1eeb point cloud<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">M\u1ed9t s\u1ed1 ph\u1ea7n m\u1ec1m d\u1ef1ng m\u00f4 h\u00ecnh t\u1ef1 \u0111\u1ed9ng nh\u01b0ng l\u1ea1i c\u00f3 gi\u1edbi h\u1ea1n khi nh\u1eadn di\u1ec7n v\u1eadt th\u1ec3 cong, nghi\u00eang ho\u1eb7c c\u1ea5u tr\u00fac phi truy\u1ec1n th\u1ed1ng. Vi\u1ec7c qu\u00e1 ph\u1ee5 thu\u1ed9c v\u00e0o AI m\u00e0 kh\u00f4ng ki\u1ec3m tra l\u1ea1i c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn b\u1ea3n v\u1ebd sai l\u1ec7ch.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"6_Loi_khi_kiem_tra_va_ban_giao\"><\/span><b>6. L\u1ed7i khi ki\u1ec3m tra v\u00e0 b\u00e0n giao<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><b>\u274c Kh\u00f4ng ki\u1ec3m \u0111\u1ecbnh m\u00f4 h\u00ecnh theo ti\u00eau chu\u1ea9n<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u cu\u1ed1i c\u00f9ng c\u1ea7n ki\u1ec3m tra c\u00e1c y\u1ebfu t\u1ed1: \u0111\u1ed9 l\u1ec7ch, \u0111\u1ecbnh d\u1ea1ng file, h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9, metadata&#8230; Vi\u1ec7c b\u1ecf qua b\u01b0\u1edbc ki\u1ec3m \u0111\u1ecbnh khi\u1ebfn d\u1eef li\u1ec7u kh\u00f3 t\u00edch h\u1ee3p v\u1edbi ph\u1ea7n m\u1ec1m thi\u1ebft k\u1ebf ho\u1eb7c BIM.<\/span><\/p>\n<h4><b>\u274c B\u00e0n giao kh\u00f4ng \u0111\u00fang y\u00eau c\u1ea7u kh\u00e1ch h\u00e0ng<\/b><\/h4>\n<p><span style=\"font-weight: 400;\">M\u1ed7i kh\u00e1ch h\u00e0ng c\u00f3 th\u1ec3 y\u00eau c\u1ea7u \u0111\u1ecbnh d\u1ea1ng file kh\u00e1c nhau: .e57, .rcs, .ifc, .rvt, .dwg&#8230; Vi\u1ec7c b\u00e0n giao thi\u1ebfu ho\u1eb7c sai \u0111\u1ecbnh d\u1ea1ng s\u1ebd khi\u1ebfn kh\u00e1ch ph\u1ea3i y\u00eau c\u1ea7u ch\u1ec9nh s\u1eeda l\u1ea1i, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ti\u1ebfn \u0111\u1ed9 d\u1ef1 \u00e1n.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Hau_qua_khi_mac_loi_trong_quet_3D\"><\/span><b>H\u1eadu qu\u1ea3 khi m\u1eafc l\u1ed7i trong qu\u00e9t 3D<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng n\u1ebfu kh\u00f4ng ph\u00e1t hi\u1ec7n v\u00e0 x\u1eed l\u00fd l\u1ed7i s\u1edbm:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Sai s\u1ed1 trong thi\u1ebft k\u1ebf<\/b><span style=\"font-weight: 400;\">: M\u00f4 h\u00ecnh BIM ho\u1eb7c b\u1ea3n v\u1ebd hi\u1ec7n tr\u1ea1ng b\u1ecb sai s\u1ebd k\u00e9o theo sai s\u00f3t trong thi\u1ebft k\u1ebf, gia c\u00f4ng v\u00e0 thi c\u00f4ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ph\u00e1t sinh chi ph\u00ed l\u00e0m l\u1ea1i<\/b><span style=\"font-weight: 400;\">: Vi\u1ec7c qu\u00e9t l\u1ea1i ho\u1eb7c d\u1ef1ng l\u1ea1i m\u00f4 h\u00ecnh t\u1ed1n k\u00e9m nhi\u1ec1u th\u1eddi gian v\u00e0 chi ph\u00ed.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Tr\u1ec5 ti\u1ebfn \u0111\u1ed9 d\u1ef1 \u00e1n<\/b><span style=\"font-weight: 400;\">: Giao sai d\u1eef li\u1ec7u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn to\u00e0n b\u1ed9 timeline c\u1ee7a \u0111\u01a1n v\u1ecb thi\u1ebft k\u1ebf ho\u1eb7c nh\u00e0 th\u1ea7u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Gi\u1ea3m uy t\u00edn chuy\u00ean m\u00f4n<\/b><span style=\"font-weight: 400;\">: L\u1ed7i k\u1ef9 thu\u1eadt s\u1ebd l\u00e0m gi\u1ea3m ni\u1ec1m tin c\u1ee7a kh\u00e1ch h\u00e0ng, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c d\u1ef1 \u00e1n l\u1edbn.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cach_han_che_va_phong_tranh_loi_khi_quet_3D\"><\/span><b>C\u00e1ch h\u1ea1n ch\u1ebf v\u00e0 ph\u00f2ng tr\u00e1nh l\u1ed7i khi qu\u00e9t 3D<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"lazyload alignnone size-full wp-image-31096\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271920%27%20height%3D%271080%27%20viewBox%3D%270%200%201920%201080%27%3E%3Crect%20width%3D%271920%27%20height%3D%271080%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-orig-src=\"https:\/\/vmts.ch\/wp-content\/uploads\/2025\/06\/nhung-loi-thuong-gap-khi-quet-3d.jpg\" alt=\"Nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi qu\u00e9t 3D c\u00f4ng tr\u00ecnh\" width=\"1920\" height=\"1080\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a d\u1eef li\u1ec7u qu\u00e9t 3D, c\u1ea7n tu\u00e2n th\u1ee7 c\u00e1c nguy\u00ean t\u1eafc sau:<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E2%9C%85_Chuan_bi_ky_truoc_khi_quet\"><\/span><b>\u2705 Chu\u1ea9n b\u1ecb k\u1ef9 tr\u01b0\u1edbc khi qu\u00e9t<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Kh\u1ea3o s\u00e1t hi\u1ec7n tr\u01b0\u1eddng chi ti\u1ebft, l\u1eadp s\u01a1 \u0111\u1ed3 tr\u1ea1m qu\u00e9t.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">D\u1ef1 ph\u00f2ng thi\u1ebft b\u1ecb, pin, th\u1ebb nh\u1edb v\u00e0 k\u1ecbch b\u1ea3n x\u1eed l\u00fd khi c\u00f3 s\u1ef1 c\u1ed1.<\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%E2%9C%85_Kiem_tra_va_hieu_chuan_thiet_bi\"><\/span><b>\u2705 Ki\u1ec3m tra v\u00e0 hi\u1ec7u chu\u1ea9n thi\u1ebft b\u1ecb<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ki\u1ec3m tra laser, c\u1ea3m bi\u1ebfn, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n tr\u01b0\u1edbc m\u1ed7i d\u1ef1 \u00e1n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Th\u1ef1c hi\u1ec7n test qu\u00e9t m\u1eabu \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng.<\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%E2%9C%85_Quan_ly_quy_trinh_chat_che\"><\/span><b>\u2705 Qu\u1ea3n l\u00fd quy tr\u00ecnh ch\u1eb7t ch\u1ebd<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tu\u00e2n th\u1ee7 quy tr\u00ecnh 6 b\u01b0\u1edbc chu\u1ea9n (\u0111\u00e3 n\u00eau \u1edf ph\u1ea7n II).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110\u1eb7t quy chu\u1ea9n cho naming, t\u1ecda \u0111\u1ed9, metadata t\u1eeb \u0111\u1ea7u.<\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%E2%9C%85_Kiem_tra_cheo_va_nghiem_thu\"><\/span><b>\u2705 Ki\u1ec3m tra ch\u00e9o v\u00e0 nghi\u1ec7m thu<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m chuy\u00ean d\u1ee5ng \u0111\u1ec3 ki\u1ec3m \u0111\u1ecbnh m\u00f4 h\u00ecnh.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Giao ch\u00e9o gi\u1eefa k\u1ef9 thu\u1eadt v\u00e0 QA \u0111\u1ec3 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Dich_vu_quet_3D_chinh_xac_chuyen_nghiep_tu_VMT_Solutions\"><\/span><b>D\u1ecbch v\u1ee5 qu\u00e9t 3D ch\u00ednh x\u00e1c &amp; chuy\u00ean nghi\u1ec7p t\u1eeb VMT Solutions<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">T\u1ea1i <\/span><b>VMT Solutions<\/b><span style=\"font-weight: 400;\">, ch\u00fang t\u00f4i hi\u1ec3u r\u1eb1ng \u0111\u1ed9 ch\u00ednh x\u00e1c trong t\u1eebng milimet d\u1eef li\u1ec7u qu\u00e9t 3D l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh s\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a c\u1ea3 d\u1ef1 \u00e1n. V\u1edbi \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt vi\u00ean \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o b\u00e0i b\u1ea3n, thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i v\u00e0 quy tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t, ch\u00fang t\u00f4i cam k\u1ebft <\/span><b>lo\u1ea1i b\u1ecf t\u1ed1i \u0111a c\u00e1c l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi qu\u00e9t 3D<\/b><span style=\"font-weight: 400;\"> ngay t\u1eeb giai \u0111o\u1ea1n kh\u1ea3o s\u00e1t ban \u0111\u1ea7u \u0111\u1ebfn khi b\u00e0n giao d\u1eef li\u1ec7u.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ch\u00fang t\u00f4i kh\u00f4ng ch\u1ec9 cung c\u1ea5p d\u1eef li\u1ec7u point cloud, m\u00e0 c\u00f2n h\u1ed7 tr\u1ee3 \u0111\u1ea7y \u0111\u1ee7 c\u00e1c d\u1ecbch v\u1ee5: d\u1ef1ng m\u00f4 h\u00ecnh BIM, t\u1ea1o b\u1ea3n v\u1ebd hi\u1ec7n tr\u1ea1ng as-built, t\u00edch h\u1ee3p v\u1edbi c\u00e1c ph\u1ea7n m\u1ec1m Revit, Archicad, AutoCAD&#8230; ph\u00f9 h\u1ee3p cho m\u1ecdi lo\u1ea1i c\u00f4ng tr\u00ecnh \u2013 t\u1eeb nh\u00e0 \u1edf d\u00e2n d\u1ee5ng, nh\u00e0 x\u01b0\u1edfng c\u00f4ng nghi\u1ec7p \u0111\u1ebfn c\u00f4ng tr\u00ecnh h\u1ea1 t\u1ea7ng v\u00e0 di s\u1ea3n ki\u1ebfn tr\u00fac.<\/span><\/p>\n<p><b>Li\u00ean h\u1ec7 VMT Solutions<\/b><span style=\"font-weight: 400;\"> \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n v\u00e0 nh\u1eadn <a href=\"https:\/\/vmts.ch\/vi\/scan-3d-laser\/\">gi\u1ea3i ph\u00e1p qu\u00e9t 3D<\/a> ph\u00f9 h\u1ee3p, ch\u00ednh x\u00e1c v\u00e0 ti\u1ebft ki\u1ec7m nh\u1ea5t cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f4ng ngh\u1ec7 qu\u00e9t 3D laser (3D Laser Scanning) \u0111ang tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00e1c l\u0129nh v\u1ef1c x\u00e2y d\u1ef1ng, ki\u1ebfn tr\u00fac, b\u1ea3o t\u1ed3n di s\u1ea3n v\u00e0 c\u00f4ng nghi\u1ec7p. V\u1edbi kh\u1ea3 n\u0103ng ghi [&#8230;]<\/p>\n","protected":false},"author":2,"featured_media":31088,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[91,122],"tags":[],"class_list":["post-31084","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-khao-sat-hien-trang-3d-laser","category-quet-3d-laser-2"],"acf":[],"_links":{"self":[{"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/posts\/31084","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/comments?post=31084"}],"version-history":[{"count":0,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/posts\/31084\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/media\/31088"}],"wp:attachment":[{"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/media?parent=31084"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/categories?post=31084"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/tags?post=31084"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}