E kiʻi i nā kiʻi kamepiula a wehe i ka hoʻohanaʻana ma o Landviewer

Ke hiki mai i ka ʻimi ʻana i nā kikoʻī kikoʻī (AOI - Kahi hoihoi) no ka ʻike mai nā sensor mamao, ʻo EOS - Pūnaewele Nānā Honua kekahi o nā pūnaewele i hoʻohana nui ʻia; ʻelua no ka ʻimi, koho a hoʻoiho ʻana i nā kiʻi mai nā pae ukali. Ua hoʻohui hou kēia paepae i kekahi mau pono hana ʻikepili hakahaka, a he kūpono ke kamaʻilio e pili ana.

ʻO ka pahuhopu nui o ka Landviewer ka ʻaoʻao o ka ʻaoʻao hema hema, ka mea e hōʻike ana i nā huahana a pau o kēlā me kēia kikowaena o nā kikowaena o nā kikowaena, kahi e pili ana iā AOI, kahi hāmeʻa ma ka ʻaoʻao hema hema, he mau hana e like me: e kiʻi iā AOI (ke kuʻala, polikonal, a i ʻole hika), ke ana, ʻike i ka hoʻonohonoho ʻana, papa inoa o nā papana, mahele, ʻike loiloi manawa a me nāʻike 3D. Ma ka wahi i lalo, ʻo ia ka pālāwili, nā hoʻonohonoho o ka wahi o ka wahi.

Ma mua, i ka pahu wahi, ua kau ʻia ka wahi o ka makemake a ua hōʻike ʻia nā kiʻi āpau e pili ana i kēlā me kēia manawa, i ka manawa e ʻimi ai i kahi e pono ai, hana ʻia kahi AOI e hana ma laila i hiki ai ke komo i ka waihona huahana. Eia kekahi, pono e noʻonoʻo ʻia i mua o kou ʻike ʻana, huli, koho a hoʻoili i kekahi hanana, pono ʻoe e kākau inoa ma ka ʻaoʻao ma mua o ke hana ʻana i kekahi kaʻina hana, ʻoiai ke kau inoa ʻana iā ʻoe e komo i ka wā hoʻokolokolo o nā lā 15 me ʻO ka mea e loaʻa ia mau pōmaikaʻi:

ʻO ka huli ʻana, nā koho ākea o nā kiʻi haʻahaʻa haʻahaʻa, kiʻekiʻe a me ke kiʻekiʻe, ke hoʻohana ʻole ʻana i nā hui pū a me nā heluʻikepili, ka hoʻokumu ʻana o nā kaha kikoʻī, ʻike ʻikepili i nā moʻolelo, nā wahi hoihoi, a me WMS e hoʻopuka i nā ʻikepili i kekahi GIS.

ʻO kahi kahua -ua manuahi ʻole ʻia ma mua- He nui a me nā pono hou. Ma mua o ka hiki iā ʻoe ke hoʻoiho ma kahi o 10 mau huahana ukali mai kēia ʻaoʻao, me ka ʻole o nā kapu; i kēia manawa, me nā mea hou, he loea hou aku ia.

Ke pau ʻana o ka hana ʻana o ka AOI, ua hōʻike hewa ʻia nā hiʻohiʻona a pau e pili ana me kēia wahi. E hōʻike ka papa hema hema i nā pāpaho āpau e loaʻa ka 'ikepili ma ia wahi, ma hope mai, hiki ke kānana ʻia, e like me ke kumu o ka noiʻi. ʻO nā kahua kahua o nā huahana hiki ke koho ʻia nā huahana: Sentinel-2L1C + 2A, Landsat 8 OLI + TIRS, Landsat 7 ETM +, Landsat 4-5 TM, CBERS-4 MUX, CBERS .4 WFI, CBERS-XNUMN 4 –PAN5 a me NAIP.

ʻO ka maikaʻi o ka hoʻohana ʻana iā AOI ʻaʻole hōʻike ka anuu i nā hopena i kūlike ʻole a i ʻole uhi ʻole i ka ʻāpana pahuhopu, manaʻo ʻia nā hoʻololi āpau i ka ʻaoʻao i uhi ʻia ka wahi hoihoi e ka huahana ukali o ka sensor i koho ʻia. He mea nui loa kēia, ʻoiai ma nā paepae hoʻoiho ʻē aʻe e like me USGS, a i ʻole ʻo Alaska SAR Facility, ʻae lākou e loaʻa kahi kiko, akā ʻaʻole lākou e hōʻoia i ka uhi ʻia o kēlā kiko e ka hanana. Kōkua kēia i ka hoʻēmi ʻana i ka manawa i lilo i ka ʻimi a me ke koho ʻana i nā huahana, a hiki i ka mea nāna ke kālailai ke hoʻolōʻihi i ka manawa ma mua a ma hope o ka hana ʻana.

Ke hana pū nei me AOI, ʻaʻole ʻoe e hāʻawi ʻia a hōʻike ʻia paha i kekahi kiʻi lōlō ʻole i kūpono ʻole a uhi pono i ka wahi i koho ʻia.

Hiki ke hoʻohana ʻia nā ʻano kānana like ʻole me ke kumu o nā kiʻi, ʻo ia hoʻi, inā he mau passive lā-night night, he low passive sensor sensors, nā sensor ikaika, data terrain, data file EOS, a me nā kiʻi kiʻekiʻe. . ^ E Ha yM. ʻO kekahi o nā mea hoihoi loa o ka ʻaoʻao, ʻo ia kā lākou kōkua i ka mea noiʻi e ʻike i nā lā pili i nā huahana e pili ana i kāna AOI, kahi hoʻomaka a me ka hopena i kau mua ʻia a hōʻike ʻia nā hiʻohiʻona e pili ana.

I ke kaomi ʻana i ka kalena, ʻike ʻoe i nā lā i hāpai ʻia i ka uliuli, i ka manawa e loaʻa ana nā hanana, a ʻaʻole pono ʻoe e ʻimi i nā lā ʻē aʻe, akā naʻe, me nā hōʻailona uliuli, hiki iā ʻoe ke ʻimi i nā lā i loaʻa nā hiʻohiʻona.

E like me ka pae ke kiʻi i nā kiʻi optical a ʻoi aku ka maʻalahi o nā mea kū i ka hau e like me ka cloudiness, aia nō hoʻi kahi kānana e kōkua ke hoʻokuʻu i nā kiʻi e loaʻa ai ka nui o ka mauʻu. Eia kekahi, hiki ke kākau inoa e loaʻa nā leka e pili ana i nā hōʻike hou e pili ana i ka AOI, a inā i hana ʻia kekahi ʻokoʻa ʻē aʻe, e hoʻomanaʻo ana ka ʻōnaehana a e hoʻouna i nā hōʻike ʻike huahana.

Mālama ka noi i nā AOI āpau i haku ʻia, i ka hala ʻana o ka manawa, hiki iā lākou ke hoʻoiho, me kahi mea hana ʻē aʻe i hoʻohui ʻia, ka unuhi ʻana o ka AOI e hoʻohālikelike ai i ka palapala a i ʻole kāpae ʻia e like me ka mea e koi ai. E pili ana i ka hoʻohana ʻana o nā papa kuhikuhi, ma mua o ka ʻike hou ʻia ʻana o nā hiʻohiʻona, me nā papa kuhikuhi i hoʻohana ʻia e like me NDVI a i ʻole NDWI, i kēia manawa ua hoʻohui lākou i nā papa kuhikuhi he nui, e like me ka SAVI, ARVI, EVI, SIPI a i ʻole GCI Grassland Clorophile Index.

ʻO ka mea hoʻohana, ma muli o ke kumu o ka noiʻi, hiki ke hoʻololi i nā kikoʻī, e kau i ka inoa āna e noʻonoʻo ai, koho i ka palette kala ʻoi ka mea nui i koho ʻia no kāna hoʻopaʻa ʻana.a i ʻole ka hana hou i kahi mea hou-, ua loaʻa ia i nā mea holo aku he nui, hoʻohui ʻana i ka mea hoʻohana i nā ʻōnaehana ma kahi maʻalahi.

ʻO kahi mea e leʻaleʻa ʻo ka loiloi, kahi e hiki ai iā ʻoe ke nānā i nā manawa i ʻike ʻia ai nā hanana ma mua, a hiki iā ʻoe ke ʻike i ke ʻano o ka mea i koho mua ʻia ʻo AOI. Hiki iā ʻoe ke hana i nā hiʻohiʻona ma waena o nā hiʻohiʻona maʻamau, a i ʻole nā ​​paukū i hāʻawi ʻia e ka kahua. Hiki i ka manawa hōʻike ke hele mai 1 a i 6 mau mahina, a mai 1 makahiki a i 10 mau makahiki, inā makemake ʻia he manawa kūikawā, hiki ke kau pū ʻia.

Ma kēia ʻāpana hou o ka Landviewer, hiki ke hoʻololi ʻia i nā kiʻi, no ka mea i ʻike ʻia no ka ʻona a me nā mea ʻē aʻe paha ke ʻano he kukui maoli nō a heʻeleʻele paha, no laila ua hoʻohui ʻia ka hana constrast. manamana e kaulike i ka histogram, ma kēlā mau hiʻohiʻonaʻeleʻele a i ʻole nā ​​kala kiʻekiʻe e loaʻa i ka hōʻike.

Aia nā koho wikiwiki 4 e hoʻololi i ke kiʻi:

• Paʻa ʻia i ka histogram kūloko,
• E hoʻomau i ka ʻikepili i ka helu ʻana.
• ʻāpana kūloko o ke kumulamu,
• ʻOkiʻoki ʻo culinary stretch cut (default).

Ke hoʻohui nei i luna, hiki iā ʻoe:

• Hoʻohui i nā papa i loko o nā server WMS, hiki ke kiʻi ʻia nā hiʻohiʻona, me ke ʻoki o ka AOI, no laila me ka pahu ʻimi (1) a i ʻole ka huahana holoʻokoʻa, maʻalahi wale nō nā ana pākana, hiki iā ʻoe komo i ka papa inoa o nā papa i hoʻohana ʻia ma ke kaʻina komo o ke kahua (mai ka pae kumu, ma waena o MDT terrain, i ke kiʻi hope i hoʻohana ʻia).
• Hoʻomaopopo lākou i ka hiki o ke kaʻana ʻana i ka hiʻohiʻona ma nā pūnaewele pilikino, e like me ka twitter, LinkedIn, Facebook, a i ʻole ma kahi pilina (2). Pēlā nō, inā loaʻa kekahi mea hiki i ke kau ma ke kahua, ua hui ʻia ke hui kākoʻo ma ka pihi e waiho ana ma ka ʻaoʻao hema o ka pā (3).

He mea nui ia e ʻike pehea e pono ai nā mea kōkua e hoʻoikaika a hoʻoikaika i ka hoʻoili ʻana i ka ʻike, a me ka kūkulu ʻana i nā loiloi spatial. Kahi ʻia kēia ʻenehana i ka ʻāʻī i loko o ke ao, hiki i kahi nui o nā huahana ke mālama i ke ao EOS a loaʻa mai kahi kamepiula, ʻo ka mea wale nō e noʻonoʻo ai, ʻaʻole ia he papa manuahi, pono ka uku no nā lawelawe i hāʻawi ʻia. E ʻike mākou i ka wā e hiki mai ana inā e wehe iki a ʻokoʻa paha kēia ʻano o nā mea hana i ka palapala GIS a me PDI (Digital Image Processing), i hoʻohana ʻia ma nā wā e like me ERDAS Imagine a ENVI paha.

E komo, hoʻopaʻa inoa a loaʻa i nā lā hoʻokolohua 15, e hele i kēia pilina: Koho ʻāina-EOS.