{"id":632,"date":"2013-02-03T20:03:18","date_gmt":"2013-02-03T20:03:18","guid":{"rendered":"http:\/\/blog.mentin.at\/?p=632"},"modified":"2016-01-04T17:38:59","modified_gmt":"2016-01-04T17:38:59","slug":"pcb-component-categorization","status":"publish","type":"post","link":"https:\/\/blog.mentin.at\/?p=632","title":{"rendered":"PCB Component Categorization"},"content":{"rendered":"<p>As i mentioned we decided to detect 0603 and 0805 case style Elements, and classify detected elements as Resistors or Capacitors. This was pretty hard, because you have to imagine, that if you are only looking onto a black and white image, some 0603 resistors can not be differenced from pads of unequipped parts. After hours of hard work the results can be shown:<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/mentin-blog.azurewebsites.net\/wp-content\/uploads\/Overview_V1.1-3.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-596 aligncenter\" src=\"http:\/\/mentin-blog.azurewebsites.net\/wp-content\/uploads\/Overview_V1.1-3.png\" alt=\"Overview_V1.1-3\" width=\"664\" height=\"493\" srcset=\"https:\/\/blog.mentin.at\/wp-content\/uploads\/Overview_V1.1-3.png 2560w, https:\/\/blog.mentin.at\/wp-content\/uploads\/Overview_V1.1-3-300x222.png 300w, https:\/\/blog.mentin.at\/wp-content\/uploads\/Overview_V1.1-3-1024x760.png 1024w\" sizes=\"auto, (max-width: 664px) 100vw, 664px\" \/><\/a><\/p>\n<p>For that shown whole PCB we got very good results:<\/p>\n<p><em>correct positives:<\/em> <span style=\"color: #339966;\">109<\/span> (out of 123)<br \/>\n<em>false positives: \u00a0<\/em> \u00a0\u00a0\u00a0<span style=\"color: #ff0000;\">18<br \/>\n<\/span><em>false negatives:<\/em> \u00a0\u00a0<span style=\"color: #ff0000;\">\u00a014<\/span><br \/>\n<em>positive detection rate: <\/em><strong>88,62%<br \/>\n<\/strong><em>precision:<\/em><strong><em>\u00a0 \u00a0 \u00a0<\/em> \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 85,83%<\/strong><\/p>\n<p>Here a short comparison of the classification preformance to other Boards, where the results are not as good, but its still very impressive how good that works:<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/mentin-blog.azurewebsites.net\/wp-content\/uploads\/BV_Results.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-617 aligncenter\" src=\"http:\/\/mentin-blog.azurewebsites.net\/wp-content\/uploads\/BV_Results.png\" alt=\"BV_Results\" width=\"648\" height=\"270\" srcset=\"https:\/\/blog.mentin.at\/wp-content\/uploads\/BV_Results.png 772w, https:\/\/blog.mentin.at\/wp-content\/uploads\/BV_Results-300x124.png 300w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>As i mentioned we decided to detect 0603 and 0805 case style Elements, and classify detected elements as Resistors or Capacitors. This was pretty hard, because you have to imagine, that if you are only looking onto a black and white image, some 0603 resistors can not be differenced from pads of unequipped parts. After &hellip; <a href=\"https:\/\/blog.mentin.at\/?p=632\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">PCB Component Categorization<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,5],"tags":[],"class_list":["post-632","post","type-post","status-publish","format-standard","hentry","category-imageunderstanding","category-universityprojects"],"_links":{"self":[{"href":"https:\/\/blog.mentin.at\/index.php?rest_route=\/wp\/v2\/posts\/632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.mentin.at\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.mentin.at\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.mentin.at\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.mentin.at\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=632"}],"version-history":[{"count":30,"href":"https:\/\/blog.mentin.at\/index.php?rest_route=\/wp\/v2\/posts\/632\/revisions"}],"predecessor-version":[{"id":3681,"href":"https:\/\/blog.mentin.at\/index.php?rest_route=\/wp\/v2\/posts\/632\/revisions\/3681"}],"wp:attachment":[{"href":"https:\/\/blog.mentin.at\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.mentin.at\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.mentin.at\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}