{"id":191,"date":"2026-11-04T10:40:04","date_gmt":"2026-11-04T10:40:04","guid":{"rendered":"https:\/\/gis.tuzvo.sk\/retrochange\/?page_id=191"},"modified":"2026-11-05T01:34:09","modified_gmt":"2026-11-05T01:34:09","slug":"retrocover","status":"publish","type":"page","link":"https:\/\/gis.tuzvo.sk\/retrochange\/?page_id=191","title":{"rendered":"RETROCOVER"},"content":{"rendered":"\n<style id=\"retrochange-approved-hero-191\">\nbody.page-id-191 .wp-block-cover:has(.wp-block-post-title) { min-height: 300px !important; }\nbody.page-id-191 .wp-block-cover:has(.wp-block-post-title) .wp-block-spacer { height: 30px !important; }\n@media (max-width: 600px) {\n body.page-id-191 .wp-block-cover:has(.wp-block-post-title) { min-height: 240px !important; }\n body.page-id-191 .wp-block-cover:has(.wp-block-post-title) .wp-block-columns { display: block; }\n body.page-id-191 .wp-block-cover .wp-block-post-title { font-size: 32px; overflow-wrap: normal; word-break: normal; }\n}\n<\/style>\n\n\n\n<style id=\"retrochange-use-case-eyebrow-191\">\nbody.page-id-191 .wp-block-post-title::before {\n content: \"Use case\";\n display: block;\n color: var(--wp--preset--color--primary, #eb710f);\n font-size: 16px;\n font-weight: 500;\n font-style: normal;\n line-height: 1.45;\n letter-spacing: normal;\n text-transform: none;\n padding: 9px 18px;\n margin: 0 0 16px;\n}\n@media (max-width: 600px) {\n body.page-id-191 .wp-block-cover:has(.wp-block-post-title) .wp-block-columns { display: block; }\n body.page-id-191 .wp-block-cover .wp-block-post-title { font-size: 32px; overflow-wrap: normal; word-break: normal; }\n}\n<\/style>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:34px;line-height:1.3\">Historical Land-Cover Mapping in Tatra National Park<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:21px;line-height:1.7\">Reconstructing land cover in Hrebienok in 1975 through image segmentation and expert interpretation.<\/p>\n\n\n\n<div class=\"wp-block-group has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"background-color:#f1f5f1;padding-top:24px;padding-right:24px;padding-bottom:24px;padding-left:24px\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-80868740 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7\"><strong>Use case<\/strong><br>RETROCOVER<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7\"><strong>Author<\/strong><br>\u0160imon Salo\u0148<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7\"><strong>Presentation<\/strong><br>Roman Kadle\u010d\u00edk, Ladislav \u0160umichrast<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7\"><strong>Institution<\/strong><br>Technical University in Zvolen, Slovakia<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7\"><strong>Research areas<\/strong><br>Historical land-cover mapping; remote sensing; geoinformatics; landscape ecology<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7\"><strong>Study area<\/strong><br>Hrebienok, Tatra National Park, Slovakia \u00b7 2,500 ha demonstration area<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7\"><strong>Reference period<\/strong><br>1975<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:28px;line-height:1.3\">Research question<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:21px;line-height:1.7\">How can a historical black-and-white satellite image be turned into a documented land-cover map that can be checked, revised and reused?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:28px;line-height:1.3\">Overview<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:18px;line-height:1.7\">This use case demonstrates the Landscape application on KH-9 Hexagon imagery of Hrebienok in Tatra National Park from 1975. It combines automated image segmentation with expert interpretation to reconstruct the physical land cover of a 2,500 ha area.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:18px;line-height:1.7\">The application proposes candidate polygons; the operator assigns classes, checks their meaning and edits their boundaries. A class catalogue, review status, statistics and result lineage help users document both the map and the decisions behind it. Land use is added only where knowledge of the site supports the interpretation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:28px;line-height:1.3\">Inputs and workflow<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-80868740 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" style=\"font-size:22px;line-height:1.3\">What you need<\/h3>\n\n\n\n<ul style=\"font-size:18px;line-height:1.7\" class=\"wp-block-list\">\n<li>An orthorectified panchromatic image. The demonstrated KH-9 product has a 0.5 m pixel grid.<\/li>\n\n\n\n<li>A classification catalogue appropriate to the study area and mapping purpose.<\/li>\n\n\n\n<li>Expert interpretation and local knowledge for reviewing classes and resolving ambiguous features.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" style=\"font-size:22px;line-height:1.3\">Main steps<\/h3>\n\n\n\n<ol style=\"font-size:18px;line-height:1.7\" class=\"wp-block-list\">\n<li>Create or open a project and select the historical raster.<\/li>\n\n\n\n<li>Prepare working rasters at resolutions suited to the mapping scale.<\/li>\n\n\n\n<li>Segment the image into candidate polygons.<\/li>\n\n\n\n<li>Assign classes, review the interpretation, and merge or split polygons where necessary.<\/li>\n\n\n\n<li>Inspect statistics and result lineage; export maps and derive simpler classifications where useful.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:28px;line-height:1.3\">What you get<\/h2>\n\n\n\n<ul style=\"font-size:18px;line-height:1.7\" class=\"wp-block-list\">\n<li>A historical land-cover layer with a documented legend and review status.<\/li>\n\n\n\n<li>Area statistics by class and records linking results to their source data and processing settings.<\/li>\n\n\n\n<li>Map outputs for presentation or print, and derived layers such as forest\/non-forest under an explicit reclassification rule.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-group has-background is-layout-flow wp-block-group-is-layout-flow\" style=\"background-color:#f1f5f1;padding-top:24px;padding-right:24px;padding-bottom:24px;padding-left:24px\">\n<h2 class=\"wp-block-heading\" style=\"font-size:26px;line-height:1.3\">Demonstrated example<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:18px;line-height:1.7\">The demonstration provides a 1975 mapping baseline. It also shows how expert review can distinguish features that segmentation alone cannot label reliably, such as forest and dwarf pine, or a stream and a path.<\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:28px;line-height:1.3\">Interpretation and limits<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:18px;line-height:1.7\">The comparison shown in the presentation is between editing versions of the same historical map. It records progress in classification. Measuring landscape change requires comparable maps from different acquisition periods. A 0.5 m output grid does not establish positional accuracy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:28px;line-height:1.3\">Video demonstration<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:18px;line-height:1.7\">A recorded walkthrough of the five mapping steps, expert review, statistics and map outputs.<\/p>\n\n\n\n<video controls playsinline preload=\"metadata\" src=\"https:\/\/gis.tuzvo.sk\/download\/uc1_retrocover.mp4\" aria-label=\"RETROCOVER video demonstration\" style=\"display:block;width:100%;max-width:100%;height:auto;border-radius:5px;background:#0d1228\">Your browser does not support embedded video. <a href=\"https:\/\/gis.tuzvo.sk\/download\/uc1_retrocover.mp4\">Watch demonstration (MP4)<\/a>.<\/video>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:28px;line-height:1.3\">Materials<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7\">The supporting materials will be linked here as they become available.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-80868740 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" style=\"font-size:22px;line-height:1.3\">Workflow package<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7\">Application, English and Slovak notebooks, and environment definitions.<\/p>\n\n\n\n<a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/gis.tuzvo.sk\/download\/uc1_retrocover_1.0.zip\" download style=\"display:inline-block;box-sizing:border-box;font:inherit;font-size:16px;font-weight:600;line-height:1.5;padding:12px 20px;max-width:100%;white-space:normal;border-radius:5px\">Download workflow package (ZIP)<\/a>\n\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" style=\"font-size:22px;line-height:1.3\">User guide<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7\">Installation, project setup, mapping workflow, notebook use and troubleshooting.<\/p>\n\n\n\n<a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/gis.tuzvo.sk\/download\/uc1_retrocover_guide_1.0.pdf\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline-block;box-sizing:border-box;font:inherit;font-size:16px;font-weight:600;line-height:1.5;padding:12px 20px;max-width:100%;white-space:normal;border-radius:5px\">Download user guide (PDF)<\/a>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" style=\"font-size:22px;line-height:1.3\">Presentation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;line-height:1.7\">Slides introducing the demonstrated mapping workflow.<\/p>\n\n\n\n<a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/gis.tuzvo.sk\/download\/uc1_retrocover_presentation.pdf\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline-block;box-sizing:border-box;font:inherit;font-size:16px;font-weight:600;line-height:1.5;padding:12px 20px;max-width:100%;white-space:normal;border-radius:5px\">Download presentation (PDF)<\/a>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:28px;line-height:1.3\">How to reuse this use case<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:18px;line-height:1.7\">Use this workflow for historical mapping, teaching image interpretation, or preparing a baseline for later change analysis. Define the class catalogue and mapping scale for the new area, retain the review records, and check the documentation for the application version being used.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:18px;line-height:1.7\">When reporting results, identify the input datasets and acquisition dates, the workflow version, processing settings and evaluation scope. Keep the documentation with the files you reuse and follow the license supplied with each resource.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/gis.tuzvo.sk\/retrochange\/?page_id=180\" data-type=\"page\" data-id=\"180\">\u2190 All use cases<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Historical Land-Cover Mapping in Tatra National Park Reconstructing land cover in Hrebienok in 1975 through image segmentation and expert interpretation. Use caseRETROCOVER Author\u0160imon Salo\u0148 PresentationRoman Kadle\u010d\u00edk, Ladislav \u0160umichrast InstitutionTechnical University in Zvolen, Slovakia Research areasHistorical land-cover mapping; remote sensing; geoinformatics; landscape ecology Study areaHrebienok, Tatra National Park, Slovakia \u00b7 2,500 ha demonstration area Reference period1975 [&hellip;]<\/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-191","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/gis.tuzvo.sk\/retrochange\/index.php?rest_route=\/wp\/v2\/pages\/191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gis.tuzvo.sk\/retrochange\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/gis.tuzvo.sk\/retrochange\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/gis.tuzvo.sk\/retrochange\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/gis.tuzvo.sk\/retrochange\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=191"}],"version-history":[{"count":12,"href":"https:\/\/gis.tuzvo.sk\/retrochange\/index.php?rest_route=\/wp\/v2\/pages\/191\/revisions"}],"predecessor-version":[{"id":285,"href":"https:\/\/gis.tuzvo.sk\/retrochange\/index.php?rest_route=\/wp\/v2\/pages\/191\/revisions\/285"}],"wp:attachment":[{"href":"https:\/\/gis.tuzvo.sk\/retrochange\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}