{"id":2678,"date":"2020-06-01T23:36:32","date_gmt":"2020-06-02T03:36:32","guid":{"rendered":"https:\/\/melindaozel.com\/?p=2678"},"modified":"2025-03-18T12:03:56","modified_gmt":"2025-03-18T16:03:56","slug":"arkit-other-face-tracking-mistakes","status":"publish","type":"post","link":"https:\/\/melindaozel.com\/sv\/arkit-other-face-tracking-mistakes\/","title":{"rendered":"ARKit och andra misstag vid ansiktssp\u00e5rning"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2678\" class=\"elementor elementor-2678\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1eb70452 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1eb70452\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-42ddc1c4\" data-id=\"42ddc1c4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-27f6f858 elementor-widget elementor-widget-text-editor\" data-id=\"27f6f858\" 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><em>Varf\u00f6r lider s\u00e5 m\u00e5nga ansiktssp\u00e5rare och avatarer av falskt positiva brynneds\u00e4ttningar? Med Apples ARKit som fallstudie utforskar denna uppdelning roten till problemet och avsl\u00f6jar en f\u00f6rv\u00e5nansv\u00e4rt enkel l\u00f6sning i slutet.\u00a0<\/em><\/p><h2>Avatarer och leenden: Memoji Edition<\/h2><p>Falskt positiv s\u00e4nkning av \u00f6gonbrynen \u00e4r ett utbrett problem vid ansiktssp\u00e5rning och avataranimering. \u00c4ven om dessa fel \u00e4r subtila kan de f\u00f6rvr\u00e4nga en avatars uttryck och introducera oavsiktliga signaler f\u00f6r sorg, ilska eller oro. I videon nedan stresstestar jag Apples Memoji f\u00f6r att demonstrera detta problem i aktion.<\/p><p>\u00a0<span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe class=\"youtube-player\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/3LjvYjHRADc?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=sv-SE&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p><p>I klippet ovan kan du se hur min Memoji \"speglar\" mitt leende. M\u00e4rker du n\u00e5got konstigt eller obehagligt? Mina inre \u00f6gonbrynsh\u00f6rn \u00e4r felaktigt s\u00e4nkta. Till\u00e4gget av felaktigt s\u00e4nkta \u00f6gonbryn finns kvar i olika typer av leenden. Det kvarst\u00e5r \u00e4ven hos andra anv\u00e4ndare.<\/p><p>S\u00e4nkta inre \u00f6gonbryn i kombination med en upph\u00f6jd \u00f6verl\u00e4pp (orsakad av <em>n\u00e4srynka <\/em>eller . <em>\u00d6vre l\u00e4pparna h\u00f6jer sig.<\/em>) \u00e4r ofta f\u00f6rknippat med obehagliga k\u00e4nslor. S\u00e4nkta \u00f6gonbryn \u00e4r ocks\u00e5 negativt korrelerade med leende. Dessa typer av semantiskt betydelsefulla sp\u00e5rningsmisstag kan oavsiktligt antyda negativa k\u00e4nslor.<\/p><h2>Hur dessa misstag uppkommer<\/h2><p>Falskpositiv s\u00e4nkning av bryn beror ofta p\u00e5 problem med datakvalitet, m\u00e4rkningsfel och konstn\u00e4rliga val. H\u00e4r \u00e4r varf\u00f6r dessa problem kvarst\u00e5r:<\/p><ol><li>Det \u00e4r inte tillr\u00e4ckligt fokus p\u00e5 datakvalitet.<\/li><li>Det finns inte tillr\u00e4ckligt med fokus p\u00e5 konst.<\/li><\/ol><p>\u00d6verallt d\u00e4r jag har arbetat har det funnits s\u00e5 mycket oro f\u00f6r att anst\u00e4lla ingenj\u00f6rer med en viss bakgrund att <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/melindaozel.com\/big-techs-homogeneous-hiring-habits-are-harming-our-data\/\" target=\"_blank\" rel=\"noopener noreferrer\">personalstyrkan tas bort fr\u00e5n andra viktiga roller.<\/a><\/span><\/p><p>M\u00e5nga tekniska leads antar att kvalitetsproblem helt enkelt kommer att l\u00f6sa sig av sig sj\u00e4lva om de samlar in tillr\u00e4ckligt med data f\u00f6r att tr\u00e4na sin modell. Wow! Magiskt. Detta antagande bygger ofta p\u00e5 en ytterligare (men falsk) \u00f6vertygelse om att det bara finns en f\u00f6rsumbar andel orena data.<\/p><p>Jag har varit djupt inne i datadikena och har arbetat med n\u00e4stan alla icke-tekniska roller inom ansiktssp\u00e5rning:<\/p><ul><li><strong>planering av uppgifter<\/strong> - best\u00e4mma vilken typ av uttrycksdata som ska samlas in och hur den ska samlas in<\/li><li><strong>insamling av uppgifter<\/strong> - att faktiskt arbeta med deltagarna och tr\u00e4na dem i att ta de r\u00e4tta uttrycksformerna<\/li><li><strong>uppgifter om kommentarer<\/strong> - fastst\u00e4lla de b\u00e4sta s\u00e4tten att m\u00e4rka landm\u00e4rken<\/li><li><strong>Klassificering av uppgifter.<\/strong> - ge r\u00e5d till ingenj\u00f6rer om vilka klasser som b\u00f6r finnas, vilka parametrar de ska ha och hur man hanterar deras oundvikliga kantfall<\/li><li><strong>\u00f6ka skalningen<\/strong> - se till att reglerna f\u00f6r annotering och klassificering \u00e4r standardiserade och l\u00e4ttf\u00f6rst\u00e5eliga f\u00f6r massm\u00e4rkare<\/li><li><strong>\u00f6vervakning och sp\u00e5rning<\/strong> - J\u00e4mf\u00f6relse av sanningen p\u00e5 marken med resultaten av sp\u00e5rningen.<\/li><li><strong>identifiera omr\u00e5den f\u00f6r f\u00f6rb\u00e4ttring<\/strong> - ta reda p\u00e5 vilka problem som finns och hur de kan f\u00f6rb\u00e4ttras genom planering, insamling, annotering och\/eller klassificering<\/li><li><strong>utveckling av en avatar<\/strong> - Strategi f\u00f6r vilka former som ska prioriteras utifr\u00e5n en blandning av olika aspekter, t.ex.<ul><li>n\u00e4r sp\u00e5raren misslyckas<\/li><li>vilka anv\u00e4ndningsomr\u00e5den f\u00f6r slutprodukten som finns<\/li><li>vad som \u00e4r mest estetiskt tilltalande<\/li><li>vad som \u00e4r mest semantiskt viktigt<\/li><\/ul><\/li><\/ul><p>Med min bakgrund inom uttrycksvetenskap, ansiktsanatomi och omfattande arbete med ansiktsdata kan jag med s\u00e4kerhet s\u00e4ga att orena data \u00e4r ett stort problem vid ansiktssp\u00e5rning, inte ett litet. Kort sagt, \u00e4ven om algoritmen \u00e4r perfekt uppst\u00e5r problem p\u00e5 grund av:<\/p><p><strong>Oren Posed Data<\/strong><\/p><ul><li>N\u00e4r man samlar in data om poserade uttryck fr\u00e5n m\u00e4nskliga deltagare kommer data alltid att vara f\u00f6rorenade. Garanterat.<\/li><li>De flesta m\u00e4nniskor kan inte tr\u00e4ffa alla m\u00e5luttryck. Det \u00e4r s\u00e4llsynt att hitta rena uppgifter om ansiktshandlingar. N\u00e4r deltagarna utf\u00f6r orena uttryck beror det p\u00e5 att de antingen visar fel ansiktsr\u00f6relse eller att de inte kan isolera m\u00e5luttrycket utan att anv\u00e4nda ytterligare ansiktsmuskler som inte \u00e4r m\u00e5l f\u00f6r uttrycket.<\/li><li>Till r\u00e5ga p\u00e5 allt kan datainsamlarna ofta inte avg\u00f6ra om deltagaren ens tr\u00e4ffar m\u00e5luttrycket. Denna brist p\u00e5 kunskap beror inte p\u00e5 datainsamlarna, utan snarare p\u00e5 f\u00f6retag X:s felaktiga prioriteringar och brist p\u00e5 uppm\u00e4rksamhet n\u00e4r det g\u00e4ller att anst\u00e4lla eller beh\u00e5lla r\u00e4tt talanger.<\/li><\/ul><p><strong>Felaktig m\u00e4rkning av data<\/strong><\/p><ul><li>P\u00e5 grund av ett hyperfokus p\u00e5 ingenj\u00f6rstalanger f\u00f6rsummar f\u00f6retag vanligtvis att prioritera datatillm\u00e4rkningsroller. Ist\u00e4llet behandlas annoteringsinsatser ofta som l\u00e5gniv\u00e5positioner som \u00e4r avsedda f\u00f6r entrepren\u00f6rer utan s\u00e4rskild expertis.<\/li><li>Entrepren\u00f6rer som b\u00f6rjar med liten erfarenhet kan s\u00e5 sm\u00e5ningom bli tillr\u00e4ckligt insatta i data f\u00f6r att f\u00e5 en expertis; detta h\u00e4nder dock s\u00e4llan, eftersom kontraktsm\u00e4rkningsroller i allm\u00e4nhet har h\u00f6g oms\u00e4ttning.<\/li><\/ul><p><strong>Oinformerade val av konst<\/strong><\/p><ul><li>Det \u00e4r viktigt att konsten f\u00f6rst\u00e5r tekniken, och att tekniken f\u00f6rst\u00e5r konsten. Det finns en h\u00e4pnadsv\u00e4ckande koppling mellan konst och teknik inom teknikf\u00f6retag. I m\u00e5nga fall ser bra trackers bra ut inte p\u00e5 grund av trackers sj\u00e4lva, utan p\u00e5 grund av de konstn\u00e4rliga val som gjorts f\u00f6r att bek\u00e4mpa omogen teknik bakom kulisserna. Mer resurser b\u00f6r investeras f\u00f6r att \u00f6verbrygga klyftan mellan konst och teknik.<\/li><\/ul><h2>Tillbaka till Memoji och s\u00e4nkning av falska positiva bryn<\/h2><p>Som n\u00e4mndes i b\u00f6rjan av det h\u00e4r inl\u00e4gget, n\u00e4r Memoji f\u00f6rs\u00f6ker spegla mitt leende, l\u00e4ggs det till en on\u00f6dig s\u00e4nkning av \u00f6gonbrynen i de inre h\u00f6rnen av mina \u00f6gonbryn. \u00c5terigen kvarst\u00e5r detta till\u00e4gg i olika typer av leenden.<\/p><p>Diagrammet nedan \u00e4r ett exempel p\u00e5 hur samspelet mellan datakvalitet och konst kan p\u00e5verka olika uttryck p\u00e5 ett negativt s\u00e4tt och orsaka problem som s\u00e4nkta \u00f6gonbryn med leenden.<\/p><p><span style=\"text-decoration: underline;\">NOTERA<\/span>: Det kan naturligtvis finnas flera potentiella orsaker, inklusive problem med sj\u00e4lva algoritmen; denna \u00f6versikt \u00e4r dock gjord f\u00f6r att belysa ett specifikt scenario med en specifik upps\u00e4ttning villkor.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2209aca elementor-widget elementor-widget-image\" data-id=\"2209aca\" 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<img fetchpriority=\"high\" decoding=\"async\" width=\"900\" height=\"527\" src=\"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2025\/03\/face-tracking-avatars-FACS-issues.webp?fit=900%2C527&amp;ssl=1\" class=\"attachment-large size-large wp-image-12234\" alt=\"diagram \u00f6ver fr\u00e5gor om ansiktssp\u00e5rning och avatarer som anv\u00e4nder FACS-former\" srcset=\"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2025\/03\/face-tracking-avatars-FACS-issues.webp?w=900&amp;ssl=1 900w, https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2025\/03\/face-tracking-avatars-FACS-issues.webp?resize=300%2C176&amp;ssl=1 300w, https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2025\/03\/face-tracking-avatars-FACS-issues.webp?resize=768%2C450&amp;ssl=1 768w, https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2025\/03\/face-tracking-avatars-FACS-issues.webp?resize=18%2C12&amp;ssl=1 18w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-615d487 elementor-widget elementor-widget-text-editor\" data-id=\"615d487\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Att bryta ner det<\/h2><p><em>N\u00e4srynkor och \u00f6verl\u00e4ppsh\u00f6jning<\/em> \u00e4r tv\u00e5 ansiktshandlingar som ser likadana ut.<\/p><ul><li>De f\u00f6rv\u00e4xlas ofta med varandra b\u00e5de n\u00e4r det g\u00e4ller insamling och m\u00e4rkning av uppgifter.<\/li><li>Eftersom teknikf\u00f6retag inte investerar tillr\u00e4ckligt i datakvalitet har de vanligtvis inte heller anst\u00e4llda som kan identifiera eller f\u00f6rklara hur man skiljer <em>n\u00e4srynka<\/em> och <em>\u00d6vre l\u00e4pparna h\u00f6jer sig.<\/em>.<\/li><li>Misstag i b\u00e5de datainsamling och datam\u00e4rkning g\u00e5r obem\u00e4rkt f\u00f6rbi, och talangerna kan inte uppt\u00e4cka sp\u00e5rningsfel.<\/li><\/ul><p>En vanlig teknik inom konsten \u00e4r att anv\u00e4nda <em>\u00d6vre l\u00e4pparna h\u00f6jer sig.<\/em> som ett kombinationsformstill\u00e4gg f\u00f6r leenden.<\/p><ul><li>Eftersom l\u00e4pph\u00f6rnan lyfter \u00f6verl\u00e4ppen n\u00e4r ett leende \u00e4r intensivt, antar m\u00e5nga att denna r\u00f6relse \u00e4r synonymt med <em>\u00d6vre l\u00e4pparna h\u00f6js upp.\u00a0<\/em>Det \u00e4r inte riktigt s\u00e5 enkelt.<\/li><li>M\u00e5nga konstn\u00e4rer anv\u00e4nder sig av <em>\u00d6vre l\u00e4pparna h\u00f6jer sig.\u00a0<\/em>form f\u00f6r att kombinera med\u00a0<em>l\u00e4pph\u00f6rndragare <\/em>f\u00f6r att skapa ett starkt leende. <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/melindaozel.com\/building-smiles-the-right-way\/\" target=\"_blank\" rel=\"noopener noreferrer\">Mer information h\u00e4r.<\/a><\/span><\/li><li>Bortsett fr\u00e5n de estetiska aspekterna och precisionen kvarst\u00e5r ett uppenbart problem: Om <em>\u00d6vre l\u00e4pparna h\u00f6jer sig.<\/em> \u00e4r kopplad till <em>n\u00e4san rynkar,<\/em> n\u00e4r ett starkt leende initieras kommer det att aktiveras <em>\u00d6vre l\u00e4pparna h\u00f6js upp,<\/em> som sedan kommer att aktivera <em>n\u00e4srynka<\/em>. D\u00e4rf\u00f6r kommer \u00f6gonbrynen att s\u00e4nkas n\u00e4r n\u00e5gon ler. D\u00e5ligt.<\/li><\/ul><p>Datakvaliteten uppm\u00e4rksammas inte tillr\u00e4ckligt.<br \/>Konsten f\u00e5r inte tillr\u00e4ckligt med uppskattning.<\/p><h2>\u00c5tg\u00e4rda problemet<\/h2><p>Den enklaste l\u00f6sningen? <a href=\"https:\/\/melindaozel.com\/reasons-the-facs-manual-is-not-for-you\/\" target=\"_blank\" rel=\"noopener\"><b>G\u00e5 bort fr\u00e5n FACS och luta dig mot ansiktets anatomi.<\/b><\/a> Den enklaste l\u00f6sningen f\u00f6r att minska antalet falska positiva s\u00f6kningar \u00e4r att s\u00e4nka<em> n\u00e4srynka<\/em> och <em>\u00d6vre l\u00e4pparna h\u00f6jer sig.<\/em> \u00e4r att hedra egenskaperna hos de muskler som ligger bakom dessa handlingar.<\/p><p>Ur anatomisk synvinkel kan varken levator palpebrae superioris (<em>\u00d6vre l\u00e4pparna h\u00f6jer sig.<\/em> muskel) eller levator palpebrae superioris alaeque nasi (<em>n\u00e4srynka<\/em> muskeln) s\u00e4nker \u00f6gonbrynen. Det \u00e4r endast inom ramen f\u00f6r FACS kodningsregler f\u00f6r ansiktsbehandling som s\u00e4nkta \u00f6gonbryn \u00e4r kopplade till rynkad n\u00e4sa.\u00a0<\/p><p>Du kan spara dig sj\u00e4lv en huvudv\u00e4rk om du helt enkelt:<\/p><ol><li><strong>omarbeta dina m\u00e4rkningsregler f\u00f6r att klassificera brow lowerer som en separat \u00e5tg\u00e4rd fr\u00e5n <em>n\u00e4srynka<\/em><\/strong><\/li><li><strong>designa om dina blendshapes f\u00f6r att vara v\u00e4rd f\u00f6r en <em>n\u00e4srynka<\/em> utan inneboende s\u00e4nkning av \u00f6gonbrynen<\/strong><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Varf\u00f6r drabbas ansiktssp\u00e5rare och avatarer av falskt positiva \u00f6gonbrynss\u00e4nkningar? H\u00e4r unders\u00f6ker vi grundorsaken och erbjuder en f\u00f6rv\u00e5nansv\u00e4rt enkel l\u00f6sning.<\/p>","protected":false},"author":60486633,"featured_media":2680,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[676756913,676756994,676756915,676757008,676756993],"tags":[676757222,676757219],"class_list":["post-2678","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-action-units","category-ar-vr","category-facial-expressions","category-free","category-tech","tag-face-tracking","tag-facial-action-coding-system-facs","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>ARKit &amp; Other Face Tracking Mistakes - Face the FACS | Facial Expressions in Animation, AI, &amp; Behavior<\/title>\n<meta name=\"description\" content=\"Why do face trackers and avatars suffer from false positive brow lowering? Here we explore the root cause and a surprisingly simple fix.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/melindaozel.com\/sv\/arkit-other-face-tracking-mistakes\/\" \/>\n<meta property=\"og:locale\" content=\"sv_SE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ARKit &amp; Other Face Tracking Mistakes\" \/>\n<meta property=\"og:description\" content=\"Why do face trackers and avatars suffer from false positive brow lowering? Here we explore the root cause and a surprisingly simple fix.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/melindaozel.com\/sv\/arkit-other-face-tracking-mistakes\/\" \/>\n<meta property=\"og:site_name\" content=\"Face the FACS | Facial Expressions in Animation, AI, &amp; Behavior\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/facetheFACS\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/facebook.com\/facetheFACS\/\" \/>\n<meta property=\"article:published_time\" content=\"2020-06-02T03:36:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-18T16:03:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/melindaozel.com\/wp-content\/uploads\/2020\/06\/similar.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2634\" \/>\n\t<meta property=\"og:image:height\" content=\"1541\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Melinda Ozel\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@melindaozel\" \/>\n<meta name=\"twitter:site\" content=\"@melindaozel\" \/>\n<meta name=\"twitter:label1\" content=\"Skriven av\" \/>\n\t<meta name=\"twitter:data1\" content=\"Melinda Ozel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Ber\u00e4knad l\u00e4stid\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minuter\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/\"},\"author\":{\"name\":\"Melinda Ozel\",\"@id\":\"https:\\\/\\\/melindaozel.com\\\/zh\\\/#\\\/schema\\\/person\\\/81c6262e1bfca3c71960db5aee204e3f\"},\"headline\":\"ARKit &#038; Other Face Tracking Mistakes\",\"datePublished\":\"2020-06-02T03:36:32+00:00\",\"dateModified\":\"2025-03-18T16:03:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/\"},\"wordCount\":1211,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/melindaozel.com\\\/zh\\\/#\\\/schema\\\/person\\\/81c6262e1bfca3c71960db5aee204e3f\"},\"image\":{\"@id\":\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/i0.wp.com\\\/melindaozel.com\\\/wp-content\\\/uploads\\\/2020\\\/06\\\/similar.png?fit=2634%2C1541&ssl=1\",\"keywords\":[\"face tracking\",\"Facial Action Coding System (FACS)\"],\"articleSection\":[\"action units (FACS AUs)\",\"AR\\\/VR\",\"facial expressions\",\"free content\",\"tech\"],\"inLanguage\":\"sv-SE\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/\",\"url\":\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/\",\"name\":\"ARKit & Other Face Tracking Mistakes - Face the FACS | Facial Expressions in Animation, AI, &amp; Behavior\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/melindaozel.com\\\/zh\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/i0.wp.com\\\/melindaozel.com\\\/wp-content\\\/uploads\\\/2020\\\/06\\\/similar.png?fit=2634%2C1541&ssl=1\",\"datePublished\":\"2020-06-02T03:36:32+00:00\",\"dateModified\":\"2025-03-18T16:03:56+00:00\",\"description\":\"Why do face trackers and avatars suffer from false positive brow lowering? Here we explore the root cause and a surprisingly simple fix.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/#breadcrumb\"},\"inLanguage\":\"sv-SE\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"sv-SE\",\"@id\":\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/#primaryimage\",\"url\":\"https:\\\/\\\/i0.wp.com\\\/melindaozel.com\\\/wp-content\\\/uploads\\\/2020\\\/06\\\/similar.png?fit=2634%2C1541&ssl=1\",\"contentUrl\":\"https:\\\/\\\/i0.wp.com\\\/melindaozel.com\\\/wp-content\\\/uploads\\\/2020\\\/06\\\/similar.png?fit=2634%2C1541&ssl=1\",\"width\":2634,\"height\":1541},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/melindaozel.com\\\/arkit-other-face-tracking-mistakes\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/melindaozel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ARKit &#038; Other Face Tracking Mistakes\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/melindaozel.com\\\/zh\\\/#website\",\"url\":\"https:\\\/\\\/melindaozel.com\\\/zh\\\/\",\"name\":\"Face the FACS\",\"description\":\"Facial Expressions in Art, Science, &amp; Technology\",\"publisher\":{\"@id\":\"https:\\\/\\\/melindaozel.com\\\/zh\\\/#\\\/schema\\\/person\\\/81c6262e1bfca3c71960db5aee204e3f\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/melindaozel.com\\\/zh\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"sv-SE\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\\\/\\\/melindaozel.com\\\/zh\\\/#\\\/schema\\\/person\\\/81c6262e1bfca3c71960db5aee204e3f\",\"name\":\"Melinda Ozel\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"sv-SE\",\"@id\":\"https:\\\/\\\/i0.wp.com\\\/melindaozel.com\\\/wp-content\\\/uploads\\\/2025\\\/02\\\/face-the-FACS-eye-mouth-logo-pixel.webp?fit=225%2C225&ssl=1\",\"url\":\"https:\\\/\\\/i0.wp.com\\\/melindaozel.com\\\/wp-content\\\/uploads\\\/2025\\\/02\\\/face-the-FACS-eye-mouth-logo-pixel.webp?fit=225%2C225&ssl=1\",\"contentUrl\":\"https:\\\/\\\/i0.wp.com\\\/melindaozel.com\\\/wp-content\\\/uploads\\\/2025\\\/02\\\/face-the-FACS-eye-mouth-logo-pixel.webp?fit=225%2C225&ssl=1\",\"width\":225,\"height\":225,\"caption\":\"Melinda Ozel\"},\"logo\":{\"@id\":\"https:\\\/\\\/i0.wp.com\\\/melindaozel.com\\\/wp-content\\\/uploads\\\/2025\\\/02\\\/face-the-FACS-eye-mouth-logo-pixel.webp?fit=225%2C225&ssl=1\"},\"sameAs\":[\"https:\\\/\\\/melindaozel.com\",\"https:\\\/\\\/facebook.com\\\/facetheFACS\\\/\",\"https:\\\/\\\/instagram.com\\\/manicexpression\",\"https:\\\/\\\/linkedin.com\\\/in\\\/melindaozel\",\"https:\\\/\\\/pinterest.com\\\/melindaozel\\\/\",\"https:\\\/\\\/x.com\\\/melindaozel\",\"https:\\\/\\\/youtube.com\\\/@facetheFACS\"],\"knowsAbout\":[\"Facial Action Coding System (FACS)\",\"Facial Expression Tracking\",\"Facial Anatomy\",\"Facial Animation\",\"Digital Humans\",\"Audio-to-Expression\",\"Audio-to-Face\",\"Visemes\",\"Lipsync\"],\"jobTitle\":\"Facial Systems Expert, Expression Scientist\",\"url\":\"https:\\\/\\\/melindaozel.com\\\/sv\\\/author\\\/melindaozel\\\/\",\"numberOfEmployees\":{\"@type\":\"QuantitativeValue\",\"minValue\":\"1\",\"maxValue\":\"10\"}}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"ARKit och andra misstag vid ansiktssp\u00e5rning - Face the FACS | Ansiktsuttryck inom animation, AI och beteende","description":"Varf\u00f6r drabbas ansiktssp\u00e5rare och avatarer av falskt positiva \u00f6gonbrynss\u00e4nkningar? H\u00e4r unders\u00f6ker vi grundorsaken och en f\u00f6rv\u00e5nansv\u00e4rt enkel l\u00f6sning.","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:\/\/melindaozel.com\/sv\/arkit-other-face-tracking-mistakes\/","og_locale":"sv_SE","og_type":"article","og_title":"ARKit & Other Face Tracking Mistakes","og_description":"Why do face trackers and avatars suffer from false positive brow lowering? Here we explore the root cause and a surprisingly simple fix.","og_url":"https:\/\/melindaozel.com\/sv\/arkit-other-face-tracking-mistakes\/","og_site_name":"Face the FACS | Facial Expressions in Animation, AI, &amp; Behavior","article_publisher":"https:\/\/facebook.com\/facetheFACS\/","article_author":"https:\/\/facebook.com\/facetheFACS\/","article_published_time":"2020-06-02T03:36:32+00:00","article_modified_time":"2025-03-18T16:03:56+00:00","og_image":[{"width":2634,"height":1541,"url":"https:\/\/melindaozel.com\/wp-content\/uploads\/2020\/06\/similar.png","type":"image\/png"}],"author":"Melinda Ozel","twitter_card":"summary_large_image","twitter_creator":"@melindaozel","twitter_site":"@melindaozel","twitter_misc":{"Skriven av":"Melinda Ozel","Ber\u00e4knad l\u00e4stid":"6 minuter"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/#article","isPartOf":{"@id":"https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/"},"author":{"name":"Melinda Ozel","@id":"https:\/\/melindaozel.com\/zh\/#\/schema\/person\/81c6262e1bfca3c71960db5aee204e3f"},"headline":"ARKit &#038; Other Face Tracking Mistakes","datePublished":"2020-06-02T03:36:32+00:00","dateModified":"2025-03-18T16:03:56+00:00","mainEntityOfPage":{"@id":"https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/"},"wordCount":1211,"commentCount":0,"publisher":{"@id":"https:\/\/melindaozel.com\/zh\/#\/schema\/person\/81c6262e1bfca3c71960db5aee204e3f"},"image":{"@id":"https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/#primaryimage"},"thumbnailUrl":"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/06\/similar.png?fit=2634%2C1541&ssl=1","keywords":["face tracking","Facial Action Coding System (FACS)"],"articleSection":["action units (FACS AUs)","AR\/VR","facial expressions","free content","tech"],"inLanguage":"sv-SE","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/","url":"https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/","name":"ARKit och andra misstag vid ansiktssp\u00e5rning - Face the FACS | Ansiktsuttryck inom animation, AI och beteende","isPartOf":{"@id":"https:\/\/melindaozel.com\/zh\/#website"},"primaryImageOfPage":{"@id":"https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/#primaryimage"},"image":{"@id":"https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/#primaryimage"},"thumbnailUrl":"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/06\/similar.png?fit=2634%2C1541&ssl=1","datePublished":"2020-06-02T03:36:32+00:00","dateModified":"2025-03-18T16:03:56+00:00","description":"Varf\u00f6r drabbas ansiktssp\u00e5rare och avatarer av falskt positiva \u00f6gonbrynss\u00e4nkningar? H\u00e4r unders\u00f6ker vi grundorsaken och en f\u00f6rv\u00e5nansv\u00e4rt enkel l\u00f6sning.","breadcrumb":{"@id":"https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/#breadcrumb"},"inLanguage":"sv-SE","potentialAction":[{"@type":"ReadAction","target":["https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/"]}]},{"@type":"ImageObject","inLanguage":"sv-SE","@id":"https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/#primaryimage","url":"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/06\/similar.png?fit=2634%2C1541&ssl=1","contentUrl":"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/06\/similar.png?fit=2634%2C1541&ssl=1","width":2634,"height":1541},{"@type":"BreadcrumbList","@id":"https:\/\/melindaozel.com\/arkit-other-face-tracking-mistakes\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/melindaozel.com\/"},{"@type":"ListItem","position":2,"name":"ARKit &#038; Other Face Tracking Mistakes"}]},{"@type":"WebSite","@id":"https:\/\/melindaozel.com\/zh\/#website","url":"https:\/\/melindaozel.com\/zh\/","name":"St\u00e4ll dig inf\u00f6r FACS","description":"Ansiktsuttryck i konst, vetenskap och teknik","publisher":{"@id":"https:\/\/melindaozel.com\/zh\/#\/schema\/person\/81c6262e1bfca3c71960db5aee204e3f"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/melindaozel.com\/zh\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"sv-SE"},{"@type":["Person","Organization"],"@id":"https:\/\/melindaozel.com\/zh\/#\/schema\/person\/81c6262e1bfca3c71960db5aee204e3f","name":"Melinda Ozel","image":{"@type":"ImageObject","inLanguage":"sv-SE","@id":"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2025\/02\/face-the-FACS-eye-mouth-logo-pixel.webp?fit=225%2C225&ssl=1","url":"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2025\/02\/face-the-FACS-eye-mouth-logo-pixel.webp?fit=225%2C225&ssl=1","contentUrl":"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2025\/02\/face-the-FACS-eye-mouth-logo-pixel.webp?fit=225%2C225&ssl=1","width":225,"height":225,"caption":"Melinda Ozel"},"logo":{"@id":"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2025\/02\/face-the-FACS-eye-mouth-logo-pixel.webp?fit=225%2C225&ssl=1"},"sameAs":["https:\/\/melindaozel.com","https:\/\/facebook.com\/facetheFACS\/","https:\/\/instagram.com\/manicexpression","https:\/\/linkedin.com\/in\/melindaozel","https:\/\/pinterest.com\/melindaozel\/","https:\/\/x.com\/melindaozel","https:\/\/youtube.com\/@facetheFACS"],"knowsAbout":["Facial Action Coding System (FACS)","Facial Expression Tracking","Facial Anatomy","Facial Animation","Digital Humans","Audio-to-Expression","Audio-to-Face","Visemes","Lipsync"],"jobTitle":"Facial Systems Expert, Expression Scientist","url":"https:\/\/melindaozel.com\/sv\/author\/melindaozel\/","numberOfEmployees":{"@type":"QuantitativeValue","minValue":"1","maxValue":"10"}}]}},"jetpack_featured_media_url":"https:\/\/i0.wp.com\/melindaozel.com\/wp-content\/uploads\/2020\/06\/similar.png?fit=2634%2C1541&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/melindaozel.com\/sv\/wp-json\/wp\/v2\/posts\/2678","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/melindaozel.com\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/melindaozel.com\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/melindaozel.com\/sv\/wp-json\/wp\/v2\/users\/60486633"}],"replies":[{"embeddable":true,"href":"https:\/\/melindaozel.com\/sv\/wp-json\/wp\/v2\/comments?post=2678"}],"version-history":[{"count":42,"href":"https:\/\/melindaozel.com\/sv\/wp-json\/wp\/v2\/posts\/2678\/revisions"}],"predecessor-version":[{"id":12284,"href":"https:\/\/melindaozel.com\/sv\/wp-json\/wp\/v2\/posts\/2678\/revisions\/12284"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/melindaozel.com\/sv\/wp-json\/wp\/v2\/media\/2680"}],"wp:attachment":[{"href":"https:\/\/melindaozel.com\/sv\/wp-json\/wp\/v2\/media?parent=2678"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/melindaozel.com\/sv\/wp-json\/wp\/v2\/categories?post=2678"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/melindaozel.com\/sv\/wp-json\/wp\/v2\/tags?post=2678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}