Fufuzani zithunzi za satana ndikufufuziridwa pogwiritsa ntchito Landviewer

Pokhudzana ndi kufunafuna deta yapadera (AOI - Malo achidwi) kuti mumve zambiri kuchokera ku masensa akutali, EOS - Earth Observation System ndi imodzi mwamasamba omwe amagwiritsidwa ntchito kwambiri; zonse pakusaka, kusankha ndi kutsitsa zithunzi kuchokera kuma satellite. Pulatifomuyi yaphatikizira zida zina zapadera, zomwe ndi zofunika kuzikambirana.

Waukulu mawonekedwe Landviewer imakhala ya kumanzere mbali gulu, kumene zokolola za aliyense wa masensa danga ofotokoza zimene zokhudzana ndi AOI, ndi Toolbar pa gombe kumanzere, muli ntchito monga tikuonera: kujambula AOI (timagulu ting'onoting'ono, polygonal, kapena circular), muyeso, tawonani kuika, mndandanda wa zigawo, gawo, kusanthula nthawi ndi ma 3D. M'munsimu ndilo mlingo, malo ozungulira aderalo.

Poyambirira, mu bokosi la malo, malo amodzi adakondweretsedwa ndipo zithunzi zonse zokhudzana ndi mfundoyo zinasonyezedwa. Tsopano, pofufuza malo oyenera, AOI imangomangidwanso kamene imapereka mwayi wopezera laibulale yamagetsi. Kuwonjezera pa izi, ziyenera kuwerengedwa kuti musanayambe kuona, kufufuza, kusankha ndi kuwombola zochitika zilizonse, muyenera kulemba pa tsamba musanayambe ntchito iliyonse, kuyambira pamene mukulembetsani nthawi yoyezetsa masiku a 15 ndi omwe amapeza mapindu awa:

Kufufuza kosavuta, kusankhidwa kwakukulu, mapepala apakati ndi apamwamba, kusagwiritsidwa ntchito kosagwiritsidwa ntchito mosagwiritsidwa ntchito, kulengedwa kwa miyambo yowonjezera, kulumikizana kwa mbiri yakale, malo osiyanasiyana, ndi WMS kuti alowetse deta mu GIS iliyonse.

Nsanja -poyamba anali mfulu- ili ndi maubwino ambiri komanso atsopano. Musanatulutse zotsatsa za satelayiti zosachepera 10 patsamba lino, popanda choletsa chilichonse; tsopano, ndi zosintha zatsopano, ndizapadera kwambiri.

Akamaliza ntchito yomanga ya AOI, iwo amalowa anapereka zithunzi onse obwera ndi malowa. The pane lamanzere amasonyeza nsanja onse okhala deta malo amene kenako akhoza osasankhidwa malingana ndi cholinga cha phunziroli. Satellite nsanja sipangakhalenso osankhidwa mankhwala ndi: apachipata-2L1C + 2A, Landsat 8 Oli + TIRs, Landsat 7 ETM +, Landsat 4-5 TM, CBERS-4 MUX, CBERS .4 WFI CBERS-4 PAN5, CBERS 4 -PAN10 ndi NAIP.

Ubwino wogwiritsa ntchito AOI ndikuti nsanja siziwonetsa zotsatira zomwe sizikugwirizana kapena zomwe sizikukhudzana ndi malo omwe akuwunikira, zosintha zonse za tsambalo zimapangidwa kuti gawo lachitetezo liphimbidwe ndi satelayiti ya sensa yosankhidwa. Izi ndizofunikira kwambiri, popeza m'mapulatifomu ena otsitsa monga USGS, kapena Alaska SAR Facility, amalola kuti mfundo ipezeke, koma sizikutsimikizira kuti mfundoyi yaphimbidwa ndi zochitikazo. Izi zimathandizira kuchepetsa nthawi yomwe mumagwiritsa ntchito posaka ndikusankha zinthu, ndipo wowunikira amatha kugwiritsa ntchito nthawi yambiri asanayambe kapena kukonza.

Mukamagwira ntchito ndi AOI, simudzapatsidwa kapena kusonyeza zithunzi zosasintha zomwe sizikugwirizana kapena makamaka kuphimba dera limene lasankhidwa.

Mitundu ina ya mafayilo angagwiritsidwe ntchito monga magwero a zithunzi, ndiko kuti, ngati ali masewero ausiku, masewera osakanikirana, masensa othamanga, deta yamtunda, deta ya EOS, ndi mafano otchuka. . Chimodzi mwa zosinthika za tsamba losangalatsa kwambiri ndi chakuti amathandiza wofufuza kuti adziwe kuti ndi masiku ati omwe ali ndi zinthu zokhudzana ndi AOI yawo, yomwe idalipo nthawi yoyamba ndi yomalizira yomwe inayikidwa ndipo zithunzi zonse zofananazo zinawonetsedwa.

Mukamalemba pa kalendala, mukhoza kuona masiku omwe akuwonetsedwa mu buluu, zomwe zimachitika pamene pali masewero, ndipo simukusowa kufufuza masiku ena, koma ndi zizindikiro za buluu, mungatsimikize kuti ndi masiku ati omwe ali ndi zisudzo.

Popeza nsanjayi ili ndi zithunzi zojambula bwino ndipo izi zimagwirizana kwambiri ndi zinthu zakuthambo monga cloudiness, palinso fyuluta yomwe imathandiza kutaya zithunzi zomwe zili ndi kuchuluka kwamtundu. Kuwonjezera pamenepo, n'zotheka kulembetsa kuti adzalandire zidziwitso za zatsopano zokhudzana ndi AOI, kapena ngati kufufuza kwina kulikonse kunapangidwa, dongosolo kapena kukumbukira ndi kutumiza zidziwitso za kupezeka kwa mankhwala.

Pulogalamuyi imasunga ma AOI onse omwe adapangidwa, popita nthawi, amatha kutsitsidwa, ndi chida china chomwe chawonjezedwa, kuchotsedwa kwa AOI kuti apange mawonekedwe kapena kuchotsedwa momwe zingafunikire. Ponena za kugwiritsidwa ntchito kwa ma index, zisanachitike zowonetserako, ndi ma index omwe amagwiritsidwa ntchito kwambiri monga NDVI kapena NDWI, tsopano awonjezera ma index ena ambiri, monga SAVI, ARVI, EVI, SIPI kapena GCI Grassland Clorophile Index.

Wogwiritsa ntchito, malingana ndi cholinga cha phunzirolo, akhoza kusintha zizindikirozo, kuika dzina limene iye akulingalira, sankhani mtundu wa mtundu umene umayimira kwambiri pophunzira -kapena kulenga chatsopano-, apeza malo ambiri, kuphatikizapo wogwiritsa ntchitoyo m'njira yosavuta.

Chinthu chinanso chochititsa chidwi ndi kusanthula, komwe kumakupangitsani kusunga nthawi yomwe kale munali zojambula, ndipo mukhoza kuona momwe AOI yomwe yasankhidwa kale idasinthika. Mukhoza kupanga zithunzi zofanana pakati pa zojambulazo, kapena ndemanga zomwe pulatifomu imapereka. Mzerewu ukhoza kuchoka ku 1 kufika ku 6 miyezi, kapena kuchokera chaka cha 1 kufikira zaka 10, ngati nthawi yeniyeni ikufunika, ikhozanso kuikidwa.

Mu siteji yatsopanoyi ya Landviewer, n'zotheka kuwonetsa zithunzizo, chifukwa zimadziwika kuti chifukwa cha mlengalenga kapena zinthu zina zingakhale zomveka bwino kapena zakuda, zomwe zowonjezera zowonjezera zakhala zikuwonjezeredwa. kutambasula, kulingalira za histogram, muzithunzi za mdima kapena kuunika kwakukulu komwe malowa ali nawo.

Pali 4 zomwe mungasinthe posintha chithunzi:

• Kutambasulira histogram yapafupi,
• kutambasula histogram yathunthu data,
• gawo lachigawo la kuchepetsa kudulidwa,
• Chomera chocheka chotsalira (chosasintha).

Kuwonjezera pamwambapa, mukhoza:

• Inu kuwonjezera zigawo kuona kupyolera maseva WMS, zithunzi akhoza dawunilodi ndi kudula AOI, kotero ili ndi mubokosi losakira (1) kapena wathunthu miyezo m'dera mankhwala ndi mwachilungamo wophweka, mungathe Pezani mndandanda wa zigawo zomwe zinagwiritsidwa ntchito popita ku nsanja (kuchokera pa mapu ozungulira, kudutsa dziko la MDT, mpaka kuchithunzi chomaliza).
• Amanena kuti angathe kutenga nawo mbali pa malo ochezera a pa Intaneti, monga pa Twitter, LinkedIn, Facebook, kapena kudzera mu link (2). Mofananamo, ngati pali vuto lililonse papulatifomu, gulu lothandizira limalowetsedwa mu batani omwe amapezeka kumunsi kumanzere kwa chinsalu (3).

Ndikofunika kuwona momwe zipangizo monga izi, zithandizira kukonza ndikuwongolera kukonza deta, komanso kumanga kusanthula malo. Makina awa amachokera pa deta mumtambo, mukhoza kusunga mtambo wa EOS katundu wochuluka ndikuwulandira kuchokera pamakompyuta aliwonse, chinthu chokha chimene chiyenera kuwerengedwa ndikuti sichilinso malo opanda ufulu, ndi ofunikira ofunika kulipira pazinthu zoperekedwa. Tidzawona posachedwa ngati zipangizozi, pang'onopang'ono kapena m'malo mwazitsulo za GIS ndi PDI (Digital Image Processing), zomwe zagwiritsidwa ntchito masiku ano monga ERDAS Imagine kapena ENVI.

Kulowa, kulembetsa ndi kupeza masiku oyesa a 15, pita kuzilumikizano zotsatirazi: Landviewer-EOS.