{"id":53360,"date":"2024-09-23T09:29:16","date_gmt":"2024-09-23T09:29:16","guid":{"rendered":"https:\/\/matis.is\/?p=53360"},"modified":"2024-09-23T09:30:37","modified_gmt":"2024-09-23T09:30:37","slug":"sequence-segmentation-of-nematodes-in-atlantic-cod-with-multispectral-imaging-data","status":"publish","type":"post","link":"https:\/\/matis.is\/en\/greinar\/sequence-segmentation-of-nematodes-in-atlantic-cod-with-multispectral-imaging-data\/","title":{"rendered":"Sequence Segmentation of Nematodes in Atlantic Cod with Multispectral Imaging Data"},"content":{"rendered":"<p>Nematodes pose significant challenges for the fish processing industry, particularly in white fish. Despite technological advances, the industry still depends on manual labor for the detection and extraction of nematodes. This study addresses the initial steps of automatic nematode detection and differentiation from other common defects in fish fillets, such as skin remnants and blood spots. VideometerLab 4, an advanced Multispectral Imaging (MSI) System, was used to acquire 270 images of 50 Atlantic cod fillets under controlled conditions. In total, 173 nematodes were labeled using the Segment Anything Model (SAM), which is trained to automatically segment objects of interest from only a few representative pixels. With the acquired dataset, we study the potential of identifying nematodes through their spectral signature. We incorporated normalized Canonical Discriminant Analysis (nCDA) to develop segmentation models trained to distinguish between different components within the fish fillets. By incorporating multiple segmentation models, we aim to achieve a satisfactory balance between false negatives and false positives. This resulted in 88% precision and 79% recall for our annotated test data. This approach could improve process control by accurately identifying fillets with nematodes. Using MSI minimizes unnecessary inspection of fillets in good condition and concurrently boosts product safety and quality.<\/p>","protected":false},"excerpt":{"rendered":"<p>Nematodes pose significant challenges for the fish processing industry, particularly in white fish. Despite technological advances, the industry still depends [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"template-greinar.php","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[2011],"tags":[],"class_list":["post-53360","post","type-post","status-publish","format-standard","hentry","category-greinar"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sequence Segmentation of Nematodes in Atlantic Cod with Multispectral Imaging Data - Mat\u00eds<\/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:\/\/matis.is\/en\/greinar\/sequence-segmentation-of-nematodes-in-atlantic-cod-with-multispectral-imaging-data\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sequence Segmentation of Nematodes in Atlantic Cod with Multispectral Imaging Data - Mat\u00eds\" \/>\n<meta property=\"og:description\" content=\"Nematodes pose significant challenges for the fish processing industry, particularly in white fish. Despite technological advances, the industry still depends [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/matis.is\/en\/greinar\/sequence-segmentation-of-nematodes-in-atlantic-cod-with-multispectral-imaging-data\/\" \/>\n<meta property=\"og:site_name\" content=\"Mat\u00eds\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/matisiceland\" \/>\n<meta property=\"article:published_time\" content=\"2024-09-23T09:29:16+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-09-23T09:30:37+00:00\" \/>\n<meta name=\"author\" content=\"Krist\u00edn Edda Gylfad\u00f3ttir\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@matisiceland\" \/>\n<meta name=\"twitter:site\" content=\"@matisiceland\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Krist\u00edn Edda Gylfad\u00f3ttir\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/matis.is\/greinar\/sequence-segmentation-of-nematodes-in-atlantic-cod-with-multispectral-imaging-data\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/matis.is\/greinar\/sequence-segmentation-of-nematodes-in-atlantic-cod-with-multispectral-imaging-data\/\"},\"author\":{\"name\":\"Krist\u00edn Edda Gylfad\u00f3ttir\",\"@id\":\"https:\/\/matis.is\/#\/schema\/person\/af2d479c72e5e79c4570d409abf2dc9b\"},\"headline\":\"Sequence Segmentation of Nematodes in Atlantic Cod with Multispectral Imaging Data\",\"datePublished\":\"2024-09-23T09:29:16+00:00\",\"dateModified\":\"2024-09-23T09:30:37+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/matis.is\/greinar\/sequence-segmentation-of-nematodes-in-atlantic-cod-with-multispectral-imaging-data\/\"},\"wordCount\":205,\"publisher\":{\"@id\":\"https:\/\/matis.is\/#organization\"},\"articleSection\":[\"Greinar\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/matis.is\/greinar\/sequence-segmentation-of-nematodes-in-atlantic-cod-with-multispectral-imaging-data\/\",\"url\":\"https:\/\/matis.is\/greinar\/sequence-segmentation-of-nematodes-in-atlantic-cod-with-multispectral-imaging-data\/\",\"name\":\"Sequence Segmentation of Nematodes in Atlantic Cod with Multispectral Imaging Data - 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