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[{"key": "dc.contributor.advisor", "value": "Lensu, Anssi", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Salmi, Pauliina", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Kauniskangas, Laura", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2022-08-19T05:28:50Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2022-08-19T05:28:50Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2022", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/82705", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Puulajien tunnistusta hyperspektrikuvista, yhdistettyn\u00e4 nykyiseen mets\u00e4-inventointiin, pidet\u00e4\u00e4n potentiaalisena keinona lis\u00e4t\u00e4 mets\u00e4nhoidon kustannus-tehokkuutta sek\u00e4 kartoittaa metsien suojelutarpeita kattavasti. Tutkimusta tarvitaan kuitenkin edelleen, jotta l\u00f6ydett\u00e4isiin tehokkaimmat kaukokartoitus-menetelm\u00e4t eri puulajien ja mets\u00e4tyyppien tutkimiseen. T\u00e4m\u00e4n tutkielman tavoitteena oli kehitt\u00e4\u00e4 menetelm\u00e4, jolla boreaalisen mets\u00e4n puulajeja voitaisiin tunnistaa hyperspektrikuvista v\u00e4hint\u00e4\u00e4n 75 % tarkkuudella hy\u00f6dynt\u00e4en ohjattua koneoppimista. Tutkimukseen sis\u00e4ltyneet lajit olivat harmaalepp\u00e4, koivu, m\u00e4nty ja kuusi. Aineisto koostui \u00c4\u00e4nekoskella sijaitsevasta mets\u00e4isest\u00e4 puronvarresta kauko-ohjattavalla ilma-aluksella (RPAS) kuvatuista hyperspektrikuvista. Lis\u00e4ksi k\u00e4yt\u00f6ss\u00e4 oli referenssimaastodataa. Hyperspektrikuville tehtiin kalibrointi, pikseleiden kohdistus sek\u00e4 georeferointi Maanmittauslaitoksen ortokuva-aineistoa k\u00e4ytt\u00e4en. Puiden kruunuista poimittiin pikseleit\u00e4 ja kuvia esik\u00e4siteltiin pikseleiden kirkkauserojen sek\u00e4 kruunujen v\u00e4listen valojen ja varjojen tasoittamiseksi R-ohjelmalla. T\u00e4m\u00e4n j\u00e4lkeen puulajeja luokiteltiin lineaarisen diskriminanttianalyysin (LDA), Random Forestin (RF) ja tukivektorikoneen (SVM) avulla. Korkein luokittelun kokonaistarkkuus 98 % (Kappa = 0,96) saatiin LDA:n avulla mutta kaikilla luokittelijoilla yllettiin yli 77 % kokonaistarkkuuksiin kaikilla testatuilla esik\u00e4sittelymenetelmill\u00e4. T\u00e4ten voidaan todeta, ett\u00e4 tutkimuksen menetelm\u00e4t\nvaikuttavat soveltuvan hyvin boreaalisten puiden luokitteluun ja tueksi metsien kest\u00e4v\u00e4n k\u00e4yt\u00f6n arviointiin.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2022-08-19T05:28:50Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2022-08-19T05:28:50Z (GMT). No. of bitstreams: 0\n Previous issue date: 2022", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "57", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "drone", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "hyperspektrikamera", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "luokittelu", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "puulajintunnistus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Tulevaisuuden ty\u00f6kalu metsien suojeluarvon m\u00e4\u00e4ritykseen? : boreaalisten puulajien tunnistus hyperspektrikuvauksen avulla", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202208194245", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Bio- ja ymp\u00e4rist\u00f6tieteiden laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Biological and Environmental Science", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ymp\u00e4rist\u00f6tiede", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Environmental science", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "40151", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "mets\u00e4t", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "puulajit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kaukokartoitus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "hyperspektrikuvantaminen", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "algoritmit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "koneoppiminen", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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