{"id":1232,"date":"2023-01-05T09:11:38","date_gmt":"2023-01-05T08:11:38","guid":{"rendered":"https:\/\/au.feri.um.si\/losdv\/?page_id=1232"},"modified":"2023-02-15T15:00:01","modified_gmt":"2023-02-15T14:00:01","slug":"ocena_vlaznosti_tal","status":"publish","type":"page","link":"https:\/\/au.feri.um.si\/losdv\/ocena_vlaznosti_tal\/","title":{"rendered":"Ocena vla\u017enosti tal s satelitskimi slikami SAR"},"content":{"rendered":"\n<p>V tem projektu smo ocenili vla\u017enost tal s pomo\u010djo slik SAR. Slike SAR smo pridobili preko agencije JAXA, ki tr\u017ei satelit ALOS-2. Satelit ALOS-2 zagotavlja slike SAR v frekven\u010dnem podro\u010dju 1.234 GHz ali pasu L in zemeljsko resolucijo 3 metrov. Slike SAR iz tega satelita se zajemajo v vseh 4 polarizacijah in omogo\u010dajo avtomatsko razvr\u0161\u010danje glede na tip odboja in oceno vla\u017enosti tal.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"1024\" height=\"324\" src=\"https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-6-1024x324-1.png\" alt=\"\" class=\"wp-image-1346\" srcset=\"https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-6-1024x324-1.png 1024w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-6-1024x324-1-300x95.png 300w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-6-1024x324-1-768x243.png 768w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-6-1024x324-1-18x6.png 18w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-6-1024x324-1-360x114.png 360w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>Slika 1. Ocena vla\u017enosti tal s konvolucijsko nevronsko mre\u017eo<\/figcaption><\/figure>\n\n\n\n<p>Slika 1 prikazuje blokoven diagram ocene vla\u017enosti tal. Vhod v konvolucijsko nevronsko mre\u017eo so satelitske slike. Cilj je dolo\u010diti vla\u017enost tal s pomo\u010djo nadzorovanega u\u010denja. V ta namen najprej sliko SAR obdelamo, kot je prikazano na sliki 2, torej jo kalibriramo in postavimo v geo-informacijski sistem in odpravimo pegasti \u0161um. S pomo\u010djo ostalih predstavitev, kot je npr. Freemanova predstavitev slike SAR, ki predstavlja tipe odboja od povr\u0161ja Zemlje jih uporabimo kot vhode v konvolucijsko navronsko mre\u017eo, ki je prikazana na sliki 3.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"575\" src=\"https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-7-1024x575.png\" alt=\"\" class=\"wp-image-1210\" srcset=\"https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-7-1024x575.png 1024w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-7-300x168.png 300w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-7-768x431.png 768w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-7-18x10.png 18w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-7-360x202.png 360w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-7.png 1348w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>Slika 2. Procesiranje slik SAR in prikaz ocene vla\u017enosti tal s konvolucijsko nevronsko mre\u017eo<\/figcaption><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"377\" src=\"https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-8-1024x377.png\" alt=\"\" class=\"wp-image-1211\" srcset=\"https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-8-1024x377.png 1024w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-8-300x110.png 300w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-8-768x283.png 768w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-8-18x7.png 18w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-8-360x132.png 360w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/image-8.png 1239w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>Slika 3. Regresijska konvolucijska mre\u017ea <\/figcaption><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft size-large is-resized\"><img loading=\"lazy\" src=\"https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/IMG_20220729_163623-1-768x1024.jpg\" alt=\"\" class=\"wp-image-1443\" width=\"332\" height=\"443\" srcset=\"https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/IMG_20220729_163623-1-768x1024.jpg 768w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/IMG_20220729_163623-1-225x300.jpg 225w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/IMG_20220729_163623-1-1152x1536.jpg 1152w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/IMG_20220729_163623-1-1536x2048.jpg 1536w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/IMG_20220729_163623-1-9x12.jpg 9w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/IMG_20220729_163623-1-203x270.jpg 203w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/01\/IMG_20220729_163623-1-scaled.jpg 1920w\" sizes=\"(max-width: 332px) 100vw, 332px\" \/><figcaption>Slika 4. <\/figcaption><\/figure><\/div>\n\n\n\n<p>Isto\u010dasno, ko satelit preleti Maribor izvajamo meritve na tleh s pomo\u010djo senzorja vla\u017enosti, ki je prikazan na sliki 4.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>Ocenjene to\u010dke vla\u017enosti predstavimo v geo-informacijskem sistemu in predlagamo naro\u010dniku potencialne omo\u010dene cone. Naro\u010dnik potem izvede izkop in odpravi iztekanje vode iz vodovodnega sistema.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"940\" height=\"581\" src=\"https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/02\/image-7.png\" alt=\"\" class=\"wp-image-1584\" srcset=\"https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/02\/image-7.png 940w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/02\/image-7-300x185.png 300w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/02\/image-7-768x475.png 768w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/02\/image-7-18x12.png 18w, https:\/\/au.feri.um.si\/losdv\/wp-content\/uploads\/sites\/4\/2023\/02\/image-7-360x223.png 360w\" sizes=\"(max-width: 940px) 100vw, 940px\" \/><figcaption>Slika 5. Prikaz ocenjene vla\u017enosti v geoinformacijskem sistemu in odprava iztekanja vode na vodovodnem sistemu<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>V tem projektu smo ocenili vla\u017enost tal s pomo\u010djo slik SAR. Slike SAR smo pridobili preko agencije JAXA, ki tr\u017ei satelit ALOS-2. Satelit ALOS-2 zagotavlja slike SAR v frekven\u010dnem podro\u010dju 1.234 GHz ali pasu L in zemeljsko resolucijo 3 metrov. <a href=\"https:\/\/au.feri.um.si\/losdv\/ocena_vlaznosti_tal\/\" class=\"read-more\">Read More &#8230;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/au.feri.um.si\/losdv\/wp-json\/wp\/v2\/pages\/1232"}],"collection":[{"href":"https:\/\/au.feri.um.si\/losdv\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/au.feri.um.si\/losdv\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/au.feri.um.si\/losdv\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/au.feri.um.si\/losdv\/wp-json\/wp\/v2\/comments?post=1232"}],"version-history":[{"count":9,"href":"https:\/\/au.feri.um.si\/losdv\/wp-json\/wp\/v2\/pages\/1232\/revisions"}],"predecessor-version":[{"id":1588,"href":"https:\/\/au.feri.um.si\/losdv\/wp-json\/wp\/v2\/pages\/1232\/revisions\/1588"}],"wp:attachment":[{"href":"https:\/\/au.feri.um.si\/losdv\/wp-json\/wp\/v2\/media?parent=1232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}