{"id":25663,"date":"2026-03-01T22:42:16","date_gmt":"2026-03-01T21:42:16","guid":{"rendered":"https:\/\/www.heliotis.com\/application-notes\/"},"modified":"2026-08-16T19:53:36","modified_gmt":"2026-08-16T17:53:36","slug":"application-notes","status":"publish","type":"page","link":"https:\/\/www.heliotis.com\/en\/application-notes\/","title":{"rendered":"tutorials2"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"25663\" class=\"elementor elementor-25663 elementor-25489\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-27ad407 e-con-full e-flex e-con e-parent\" data-id=\"27ad407\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-231fcd5 e-con-full e-flex e-con e-child\" data-id=\"231fcd5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c23f986 elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"c23f986\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div class=\"elementor-heading-title elementor-size-default\">Practical expertise in optical metrology, 3D sensing, and industrial image processing.<\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6fcdff5 elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"6fcdff5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Tutorials<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7cbd16c e-flex e-con-boxed e-con e-child\" data-id=\"7cbd16c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b6ddffd elementor-widget elementor-widget-text-editor\" data-id=\"b6ddffd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: left\">Our video tutorials and application notes convey measurement principles, evaluation algorithms, and practical applications using specific examples from industry and research. New content is added regularly. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f844a69 elementor-grid-3 elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-widget elementor-widget-loop-grid\" data-id=\"f844a69\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;template_id&quot;:25651,&quot;pagination_type&quot;:&quot;load_more_infinite_scroll&quot;,&quot;_skin&quot;:&quot;post&quot;,&quot;columns&quot;:&quot;3&quot;,&quot;columns_tablet&quot;:&quot;2&quot;,&quot;columns_mobile&quot;:&quot;1&quot;,&quot;edit_handle_selector&quot;:&quot;[data-elementor-type=\\&quot;loop-item\\&quot;]&quot;,&quot;load_more_spinner&quot;:{&quot;value&quot;:&quot;fas fa-spinner&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;row_gap_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;row_gap_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"loop-grid.post\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-loop-nothing-found-message\">\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-83a1234 e-flex e-con-boxed e-con e-parent\" data-id=\"83a1234\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5486c70 elementor-grid-3 elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-widget elementor-widget-loop-grid\" data-id=\"5486c70\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;template_id&quot;:25651,&quot;pagination_type&quot;:&quot;load_more_infinite_scroll&quot;,&quot;_skin&quot;:&quot;post&quot;,&quot;columns&quot;:&quot;3&quot;,&quot;columns_tablet&quot;:&quot;2&quot;,&quot;columns_mobile&quot;:&quot;1&quot;,&quot;edit_handle_selector&quot;:&quot;[data-elementor-type=\\&quot;loop-item\\&quot;]&quot;,&quot;load_more_spinner&quot;:{&quot;value&quot;:&quot;fas fa-spinner&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;row_gap_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;row_gap_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"loop-grid.post\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-loop-container elementor-grid\" role=\"list\">\n\t\t<style id=\"loop-25651\">.elementor-25651 .elementor-element.elementor-element-1bf01c58{--display:flex;--flex-direction:column;--container-widget-width:100%;--container-widget-height:initial;--container-widget-flex-grow:0;--container-widget-align-self:initial;--flex-wrap-mobile:wrap;--gap:0px 0px;--row-gap:0px;--column-gap:0px;border-style:solid;--border-style:solid;border-width:1px 1px 1px 1px;--border-top-width:1px;--border-right-width:1px;--border-bottom-width:1px;--border-left-width:1px;border-color:#98A2B3;--border-color:#98A2B3;--border-radius:8px 8px 8px 8px;--margin-top:0px;--margin-bottom:0px;--margin-left:0px;--margin-right:0px;--padding-top:0px;--padding-bottom:0px;--padding-left:0px;--padding-right:0px;}.elementor-25651 .elementor-element.elementor-element-71c6dc96 img{width:100vw;height:288px;object-fit:cover;object-position:center 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0px;padding:0px 0px 0px 0px;}}<\/style>\t\t<div data-elementor-type=\"loop-item\" data-elementor-id=\"25651\" class=\"elementor elementor-25651 elementor-25482 elementor-25482 e-loop-item e-loop-item-29129 post-29129 tutorial type-tutorial status-publish has-post-thumbnail hentry\" data-elementor-post-type=\"elementor_library\" data-custom-edit-handle=\"1\">\n\t\t\t<div class=\"elementor-element elementor-element-1bf01c58 e-con-full e-flex e-con e-child\" data-id=\"1bf01c58\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-71c6dc96 elementor-widget elementor-widget-image\" data-id=\"71c6dc96\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/first-measurements-with-the-heliprofiler-p4\/\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1295\" height=\"757\" src=\"https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/08\/first_measurements_p4.webp\" class=\"attachment-full size-full wp-image-29130\" alt=\"\" srcset=\"https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/08\/first_measurements_p4.webp 1295w, https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/08\/first_measurements_p4-300x175.webp 300w, https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/08\/first_measurements_p4-1024x599.webp 1024w, https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/08\/first_measurements_p4-768x449.webp 768w\" sizes=\"(max-width: 1295px) 100vw, 1295px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-468b2f83 e-con-full e-flex e-con e-child\" data-id=\"468b2f83\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3dca0be7 elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"3dca0be7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/first-measurements-with-the-heliprofiler-p4\/\">First measurements with the heliProfiler P4<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-670035f2 elementor-widget__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"670035f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>In this video, you will receive a compact overview of the complete measurement workflow \u2013 from the start of the recording to  &#8230;\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-218b332d elementor-align-left elementor-widget elementor-widget-button\" data-id=\"218b332d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/first-measurements-with-the-heliprofiler-p4\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Read more<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div data-elementor-type=\"loop-item\" data-elementor-id=\"25651\" class=\"elementor elementor-25651 elementor-25482 elementor-25482 e-loop-item e-loop-item-29165 post-29165 tutorial type-tutorial status-publish has-post-thumbnail hentry\" data-elementor-post-type=\"elementor_library\" data-custom-edit-handle=\"1\">\n\t\t\t<div class=\"elementor-element elementor-element-1bf01c58 e-con-full e-flex e-con e-child\" data-id=\"1bf01c58\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-71c6dc96 elementor-widget elementor-widget-image\" data-id=\"71c6dc96\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/subpixel-accuracy-in-image-processing\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"406\" height=\"243\" src=\"https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/03\/sub-pixel-concept-1.webp\" class=\"attachment-full size-full wp-image-28356\" alt=\"\" srcset=\"https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/03\/sub-pixel-concept-1.webp 406w, https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/03\/sub-pixel-concept-1-300x180.webp 300w\" sizes=\"(max-width: 406px) 100vw, 406px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-468b2f83 e-con-full e-flex e-con e-child\" data-id=\"468b2f83\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3dca0be7 elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"3dca0be7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/subpixel-accuracy-in-image-processing\/\">Subpixel Accuracy in Image Processing<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-670035f2 elementor-widget__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"670035f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t&#8220;A pixel is the smallest measurable lateral unit.&#8221; This is true for pure pixel counting\u2014but not for determining the position of edges,  &#8230;\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-218b332d elementor-align-left elementor-widget elementor-widget-button\" data-id=\"218b332d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/subpixel-accuracy-in-image-processing\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Read more<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div data-elementor-type=\"loop-item\" data-elementor-id=\"25651\" class=\"elementor elementor-25651 elementor-25482 elementor-25482 e-loop-item e-loop-item-29147 post-29147 tutorial type-tutorial status-publish has-post-thumbnail hentry\" data-elementor-post-type=\"elementor_library\" data-custom-edit-handle=\"1\">\n\t\t\t<div class=\"elementor-element elementor-element-1bf01c58 e-con-full e-flex e-con e-child\" data-id=\"1bf01c58\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-71c6dc96 elementor-widget elementor-widget-image\" data-id=\"71c6dc96\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/surface-defects-according-to-iso-8785\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"722\" height=\"643\" src=\"https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/02\/defects_iso8785.webp\" class=\"attachment-full size-full wp-image-29148\" alt=\"\" srcset=\"https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/02\/defects_iso8785.webp 722w, https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/02\/defects_iso8785-300x267.webp 300w\" sizes=\"(max-width: 722px) 100vw, 722px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-468b2f83 e-con-full e-flex e-con e-child\" data-id=\"468b2f83\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3dca0be7 elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"3dca0be7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/surface-defects-according-to-iso-8785\/\">Surface Defects According to ISO 8785<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-670035f2 elementor-widget__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"670035f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>ISO 8785 describes characteristic surface imperfections such as scratches, cracks, pores, or depressions. In this tutorial, we show how such defects can  &#8230;\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-218b332d elementor-align-left elementor-widget elementor-widget-button\" data-id=\"218b332d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/surface-defects-according-to-iso-8785\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Read more<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div data-elementor-type=\"loop-item\" data-elementor-id=\"25651\" class=\"elementor elementor-25651 elementor-25482 elementor-25482 e-loop-item e-loop-item-29153 post-29153 tutorial type-tutorial status-publish has-post-thumbnail hentry\" data-elementor-post-type=\"elementor_library\" data-custom-edit-handle=\"1\">\n\t\t\t<div class=\"elementor-element elementor-element-1bf01c58 e-con-full e-flex e-con e-child\" data-id=\"1bf01c58\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-71c6dc96 elementor-widget elementor-widget-image\" data-id=\"71c6dc96\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/roughness-according-to-iso-21920\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"448\" height=\"422\" src=\"https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/02\/surfaces2342.webp\" class=\"attachment-full size-full wp-image-29154\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-468b2f83 e-con-full e-flex e-con e-child\" data-id=\"468b2f83\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3dca0be7 elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"3dca0be7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/roughness-according-to-iso-21920\/\">Roughness according to ISO 21920<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-670035f2 elementor-widget__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"670035f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>ISO 21920 defines the profile-based evaluation of surface roughness and forms the basis for classic tactile roughness measurements. In this tutorial, we  &#8230;\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-218b332d elementor-align-left elementor-widget elementor-widget-button\" data-id=\"218b332d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/roughness-according-to-iso-21920\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Read more<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div data-elementor-type=\"loop-item\" data-elementor-id=\"25651\" class=\"elementor elementor-25651 elementor-25482 elementor-25482 e-loop-item e-loop-item-29156 post-29156 tutorial type-tutorial status-publish has-post-thumbnail hentry\" data-elementor-post-type=\"elementor_library\" data-custom-edit-handle=\"1\">\n\t\t\t<div class=\"elementor-element elementor-element-1bf01c58 e-con-full e-flex e-con e-child\" data-id=\"1bf01c58\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-71c6dc96 elementor-widget elementor-widget-image\" data-id=\"71c6dc96\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/surface-texture-according-to-iso-25178\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"566\" height=\"492\" src=\"https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/02\/rauheit132.webp\" class=\"attachment-full size-full wp-image-29157\" alt=\"\" srcset=\"https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/02\/rauheit132.webp 566w, https:\/\/www.heliotis.com\/wp-content\/uploads\/2026\/02\/rauheit132-300x261.webp 300w\" sizes=\"(max-width: 566px) 100vw, 566px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-468b2f83 e-con-full e-flex e-con e-child\" data-id=\"468b2f83\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3dca0be7 elementor-widget__width-inherit elementor-widget elementor-widget-heading\" data-id=\"3dca0be7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/surface-texture-according-to-iso-25178\/\">Surface texture according to ISO 25178<\/a><\/h5>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-670035f2 elementor-widget__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"670035f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>ISO 25178-2 defines areal surface parameters for characterizing roughness and surface structure. In this tutorial, we show how 3D surface data is  &#8230;\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-218b332d elementor-align-left elementor-widget elementor-widget-button\" data-id=\"218b332d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.heliotis.com\/en\/tutorials2\/surface-texture-according-to-iso-25178\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-right\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M190.5 66.9l22.2-22.2c9.4-9.4 24.6-9.4 33.9 0L441 239c9.4 9.4 9.4 24.6 0 33.9L246.6 467.3c-9.4 9.4-24.6 9.4-33.9 0l-22.2-22.2c-9.5-9.5-9.3-25 .4-34.3L311.4 296H24c-13.3 0-24-10.7-24-24v-32c0-13.3 10.7-24 24-24h287.4L190.9 101.2c-9.8-9.3-10-24.8-.4-34.3z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Read more<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<span class=\"e-load-more-spinner\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-spinner\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M304 48c0 26.51-21.49 48-48 48s-48-21.49-48-48 21.49-48 48-48 48 21.49 48 48zm-48 368c-26.51 0-48 21.49-48 48s21.49 48 48 48 48-21.49 48-48-21.49-48-48-48zm208-208c-26.51 0-48 21.49-48 48s21.49 48 48 48 48-21.49 48-48-21.49-48-48-48zM96 256c0-26.51-21.49-48-48-48S0 229.49 0 256s21.49 48 48 48 48-21.49 48-48zm12.922 99.078c-26.51 0-48 21.49-48 48s21.49 48 48 48 48-21.49 48-48c0-26.509-21.491-48-48-48zm294.156 0c-26.51 0-48 21.49-48 48s21.49 48 48 48 48-21.49 48-48c0-26.509-21.49-48-48-48zM108.922 60.922c-26.51 0-48 21.49-48 48s21.49 48 48 48 48-21.49 48-48-21.491-48-48-48z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Practical expertise in optical metrology, 3D sensing, and industrial image processing. Tutorials Our video tutorials and application notes convey measurement principles, evaluation algorithms, and practical applications using specific examples from industry and research. New content is added regularly.<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-25663","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.heliotis.com\/en\/wp-json\/wp\/v2\/pages\/25663","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.heliotis.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.heliotis.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.heliotis.com\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.heliotis.com\/en\/wp-json\/wp\/v2\/comments?post=25663"}],"version-history":[{"count":3,"href":"https:\/\/www.heliotis.com\/en\/wp-json\/wp\/v2\/pages\/25663\/revisions"}],"predecessor-version":[{"id":29097,"href":"https:\/\/www.heliotis.com\/en\/wp-json\/wp\/v2\/pages\/25663\/revisions\/29097"}],"wp:attachment":[{"href":"https:\/\/www.heliotis.com\/en\/wp-json\/wp\/v2\/media?parent=25663"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}