{"id":301,"date":"2026-11-04T21:14:13","date_gmt":"2026-11-04T21:14:13","guid":{"rendered":"https:\/\/facedig.org\/?page_id=301"},"modified":"2026-11-04T21:17:29","modified_gmt":"2026-11-04T21:17:29","slug":"landmark-specification","status":"publish","type":"page","link":"https:\/\/facedig.org\/index.php\/landmark-specification\/","title":{"rendered":"Landmark specification"},"content":{"rendered":"\n
\n
\n
\"\"<\/figure>\n<\/div>\n\n\n\n
\n
Number<\/strong><\/th>Point<\/th>Description<\/strong><\/th><\/tr><\/thead>
1<\/strong><\/td>Trichion<\/td>midpoint of the hairline, that is, on the hairline through the midline of the forehead \u2013 seen from the profile perspective<\/td><\/tr>
2, 3, 4<\/strong><\/td>Semilandmarks<\/td>The midpoints between trichion <\/em>and glabella<\/em><\/td><\/tr>
5<\/strong><\/td>Glabella<\/td>prominence in the midsagittal plane of the forehead at the level of the superior orbial ridges \u2013 seen from the profile perspective<\/td><\/tr>
6<\/strong><\/td>Nasion<\/td>Point located at the intersection of the median plane with sutura nasofrontalis<\/em><\/td><\/tr>
7, 8, 9<\/strong><\/td>Semilandmarks<\/td>The midpoints between nasion<\/em> and pronasale<\/em><\/td><\/tr>
10<\/strong><\/td>Pronasale<\/td>The most prominent point at the top of the nose<\/td><\/tr>
11<\/strong><\/td>Postalare<\/td>A point located at the back of the ala, where the skin of the nose merges with the skin of the face<\/td><\/tr>
12<\/strong><\/td>Subnasale<\/td>A point located at the top of the angle formed by the lower edge of the nasal septum and the philtrum<\/em> in the median plane<\/td><\/tr>
13<\/strong><\/td>Labiale superius<\/td>A point located on the upper edge of the vermilion border of the upper lip, where it is intersected by the median plane  <\/td><\/tr>
14<\/strong><\/td>Stomion<\/td>A point located on the oral fissure from the front (with the mouth closed), where it is crossed by the median plane<\/td><\/tr>
15<\/strong><\/td>Labiale inferius<\/td>A point located on the lower edge of the vermilion border of the lower lip, where it is intersected by the median plane  <\/td><\/tr>
16<\/strong><\/td>Labiomentale<\/td>A point located where the midline plane is crossed by the cutaneous chin-labial fold<\/td><\/tr>
17<\/strong><\/td>Pogonion<\/td>A point located on the anterior wall of the mandible, in the median plane, at the most anterior point on the mental prominence or spine<\/td><\/tr>
18<\/strong><\/td>Gnathion<\/td>A point located on the lower edge of the mandible at the intersection with the median plane<\/td><\/tr>
19<\/strong><\/td>Cervicomentale<\/td>A point where the chin merges into the neck<\/td><\/tr>
20<\/strong><\/td>Exocathion<\/td>The outer corner of the eye fissure where eyelids meet<\/td><\/tr>
21<\/strong><\/td>Vertex corneae<\/td>The most prominent point of the eyeball<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Number Point Description 1 Trichion midpoint of the hairline, that is, on the hairline through the midline of the forehead \u2013 seen from the profile perspective 2, 3, 4 Semilandmarks The midpoints between trichion and glabella 5 Glabella prominence in the midsagittal plane of the forehead at the level of the superior orbial ridges \u2013 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-301","page","type-page","status-publish","hentry"],"yoast_head":"\nLandmark specification - FACEDIG<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/facedig.org\/index.php\/landmark-specification\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Landmark specification - FACEDIG\" \/>\n<meta property=\"og:description\" content=\"Number Point Description 1 Trichion midpoint of the hairline, that is, on the hairline through the midline of the forehead \u2013 seen from the profile perspective 2, 3, 4 Semilandmarks The midpoints between trichion and glabella 5 Glabella prominence in the midsagittal plane of the forehead at the level of the superior orbial ridges \u2013 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/facedig.org\/index.php\/landmark-specification\/\" \/>\n<meta property=\"og:site_name\" content=\"FACEDIG\" \/>\n<meta property=\"article:modified_time\" content=\"2026-11-04T21:17:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/facedig.org\/wp-content\/uploads\/2026\/11\/Facedig-Profile_LM-defiitions-738x1024.png\" \/>\n\t<meta property=\"og:image:width\" content=\"738\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/facedig.org\/index.php\/landmark-specification\/\",\"url\":\"https:\/\/facedig.org\/index.php\/landmark-specification\/\",\"name\":\"Landmark specification - FACEDIG\",\"isPartOf\":{\"@id\":\"https:\/\/facedig.org\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/facedig.org\/index.php\/landmark-specification\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/facedig.org\/index.php\/landmark-specification\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/facedig.org\/wp-content\/uploads\/2026\/11\/Facedig-Profile_LM-defiitions-738x1024.png\",\"datePublished\":\"2026-11-04T21:14:13+00:00\",\"dateModified\":\"2026-11-04T21:17:29+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/facedig.org\/index.php\/landmark-specification\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/facedig.org\/index.php\/landmark-specification\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/facedig.org\/index.php\/landmark-specification\/#primaryimage\",\"url\":\"https:\/\/facedig.org\/wp-content\/uploads\/2026\/11\/Facedig-Profile_LM-defiitions.png\",\"contentUrl\":\"https:\/\/facedig.org\/wp-content\/uploads\/2026\/11\/Facedig-Profile_LM-defiitions.png\",\"width\":1065,\"height\":1477},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/facedig.org\/index.php\/landmark-specification\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/facedig.org\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Landmark specification\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/facedig.org\/#website\",\"url\":\"https:\/\/facedig.org\/\",\"name\":\"FACEDIG\",\"description\":\"Automated tool for placing landmarks on facial portraits for geometric morphometrics users\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/facedig.org\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Landmark specification - FACEDIG","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/facedig.org\/index.php\/landmark-specification\/","og_locale":"en_US","og_type":"article","og_title":"Landmark specification - FACEDIG","og_description":"Number Point Description 1 Trichion midpoint of the hairline, that is, on the hairline through the midline of the forehead \u2013 seen from the profile perspective 2, 3, 4 Semilandmarks The midpoints between trichion and glabella 5 Glabella prominence in the midsagittal plane of the forehead at the level of the superior orbial ridges \u2013 […]","og_url":"https:\/\/facedig.org\/index.php\/landmark-specification\/","og_site_name":"FACEDIG","article_modified_time":"2026-11-04T21:17:29+00:00","og_image":[{"width":738,"height":1024,"url":"https:\/\/facedig.org\/wp-content\/uploads\/2026\/11\/Facedig-Profile_LM-defiitions-738x1024.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/facedig.org\/index.php\/landmark-specification\/","url":"https:\/\/facedig.org\/index.php\/landmark-specification\/","name":"Landmark specification - FACEDIG","isPartOf":{"@id":"https:\/\/facedig.org\/#website"},"primaryImageOfPage":{"@id":"https:\/\/facedig.org\/index.php\/landmark-specification\/#primaryimage"},"image":{"@id":"https:\/\/facedig.org\/index.php\/landmark-specification\/#primaryimage"},"thumbnailUrl":"https:\/\/facedig.org\/wp-content\/uploads\/2026\/11\/Facedig-Profile_LM-defiitions-738x1024.png","datePublished":"2026-11-04T21:14:13+00:00","dateModified":"2026-11-04T21:17:29+00:00","breadcrumb":{"@id":"https:\/\/facedig.org\/index.php\/landmark-specification\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/facedig.org\/index.php\/landmark-specification\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/facedig.org\/index.php\/landmark-specification\/#primaryimage","url":"https:\/\/facedig.org\/wp-content\/uploads\/2026\/11\/Facedig-Profile_LM-defiitions.png","contentUrl":"https:\/\/facedig.org\/wp-content\/uploads\/2026\/11\/Facedig-Profile_LM-defiitions.png","width":1065,"height":1477},{"@type":"BreadcrumbList","@id":"https:\/\/facedig.org\/index.php\/landmark-specification\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/facedig.org\/"},{"@type":"ListItem","position":2,"name":"Landmark specification"}]},{"@type":"WebSite","@id":"https:\/\/facedig.org\/#website","url":"https:\/\/facedig.org\/","name":"FACEDIG","description":"Automated tool for placing landmarks on facial portraits for geometric morphometrics users","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/facedig.org\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/facedig.org\/index.php\/wp-json\/wp\/v2\/pages\/301"}],"collection":[{"href":"https:\/\/facedig.org\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/facedig.org\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/facedig.org\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/facedig.org\/index.php\/wp-json\/wp\/v2\/comments?post=301"}],"version-history":[{"count":4,"href":"https:\/\/facedig.org\/index.php\/wp-json\/wp\/v2\/pages\/301\/revisions"}],"predecessor-version":[{"id":307,"href":"https:\/\/facedig.org\/index.php\/wp-json\/wp\/v2\/pages\/301\/revisions\/307"}],"wp:attachment":[{"href":"https:\/\/facedig.org\/index.php\/wp-json\/wp\/v2\/media?parent=301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}