{"id":38037,"date":"2026-03-31T11:30:16","date_gmt":"2026-03-31T09:30:16","guid":{"rendered":"https:\/\/zerodeforestationhub.eu\/?p=38037"},"modified":"2026-08-04T16:21:15","modified_gmt":"2026-08-04T14:21:15","slug":"guidelines-for-harmonised-vhr-based-data-collection-for-geoai-applications-in-perennial-crop-mapping-for-historical-reference-years","status":"publish","type":"post","link":"https:\/\/zerodeforestationhub.eu\/fr\/guidelines-for-harmonised-vhr-based-data-collection-for-geoai-applications-in-perennial-crop-mapping-for-historical-reference-years\/","title":{"rendered":"Guidelines for Harmonised VHR-Based Data Collection for GeoAI Applications in Perennial Crop Mapping for Historical Reference Years"},"content":{"rendered":"\n<p>This document provides<strong> methodological guidance for the collection of high-quality reference data through visual interpretation of very high resolution (VHR) imagery<\/strong> to support supervised classification of remotely sensed data for thematic crop type and crop probability mapping. It defines a consistent framework for visual interpretation, digitisation, and quality control of planted areas (PAs) using VHR satellite imagery, with a focus on perennial crops in heterogeneous agricultural landscapes.<br>The guidelines are designed to support <strong>applications that require retrospective labelling for a fixed reference year<\/strong>, as is the case for regulatory frameworks such as the <strong>EU Regulation on deforestation-free products (EUDR)<\/strong>, where direct field verification is no longer possible. In this context, reference-year VHR imagery is complemented by multi-year VHR imagery to support crop identification, confirm crop persistence, and clarify PA boundaries where single-date imagery is insufficient. A sampling-unit-based, wall-to-wall digitisation approach is adopted to optimise data collection for developing segmentation models, preserving spatial context and enabling scalable generation of diverse training samples.<br>While the guidelines are formulated in generic terms and are applicable <strong>across perennial crops and regions<\/strong>, they are illustrated using <strong>coffee mapping in Kenya as an implementation example<\/strong>. The work was developed through collaboration between European and Kenyan institutions within the framework of the <strong>European Commission\u2019s Teams Europe Initiative and the Technical Facility on deforestation-free supply chains<\/strong>, supporting Kenya\u2019s preparedness for implementation of the EUDR.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This document provides methodological guidance for the collection of high-quality reference data through visual interpretation of very high resolution (VHR) imagery to support supervised classification of remotely sensed data for thematic crop type and crop probability mapping. It defines a consistent framework for visual interpretation, digitisation, and quality control of planted areas (PAs) using VHR [&hellip;]<\/p>\n","protected":false},"author":20,"featured_media":13339,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10],"tags":[1871,712,1356,1357,315,1358,1359],"class_list":["post-38037","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee","tag-dpi","tag-eudr","tag-kenya","tag-perennial-crop-mapping","tag-technical-facility","tag-tei","tag-vhr-imagery"],"acf":[],"_links":{"self":[{"href":"https:\/\/zerodeforestationhub.eu\/fr\/wp-json\/wp\/v2\/posts\/38037","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zerodeforestationhub.eu\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zerodeforestationhub.eu\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zerodeforestationhub.eu\/fr\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/zerodeforestationhub.eu\/fr\/wp-json\/wp\/v2\/comments?post=38037"}],"version-history":[{"count":1,"href":"https:\/\/zerodeforestationhub.eu\/fr\/wp-json\/wp\/v2\/posts\/38037\/revisions"}],"predecessor-version":[{"id":38046,"href":"https:\/\/zerodeforestationhub.eu\/fr\/wp-json\/wp\/v2\/posts\/38037\/revisions\/38046"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zerodeforestationhub.eu\/fr\/wp-json\/wp\/v2\/media\/13339"}],"wp:attachment":[{"href":"https:\/\/zerodeforestationhub.eu\/fr\/wp-json\/wp\/v2\/media?parent=38037"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zerodeforestationhub.eu\/fr\/wp-json\/wp\/v2\/categories?post=38037"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zerodeforestationhub.eu\/fr\/wp-json\/wp\/v2\/tags?post=38037"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}