Orthophoto adalah set data foto udara yang mencakup Estonia.
Ortophoto adalah foto udara yang diproses dan distorsi yang disebabkan oleh relief medan, kemiringan kamera relatif terhadap tanah pada saat eksposur, dan proyeksi sentral kamera dihilangkan. Ortophoto digital memiliki ukuran atau resolusi piksel tertentu yang menunjukkan area terkecil yang tidak dapat dibagi dan terlihat di permukaan tanah (Jarak Pengambilan Sampel, GSD).
Ortofoto memiliki cakupan nasional dan sesuai dengan skala
1:5000-1:10000 (ukuran piksel 20-40 cm). Ortofoto untuk area dengan populasi padat dihasilkan dengan ukuran piksel 10-16 cm.
Dataset mono_low_flying memiliki satu band skala abu-abu untuk area dengan populasi padat.
Data ini bebas digunakan untuk tujuan komersial dan non-komersial selama jangka waktu yang tidak ditentukan, asalkan atribusi yang tepat diberikan kepada pemegang lisensi (misalnya, Estonian Land Board) beserta judul dan usia data.
Orthophoto adalah set data foto udara yang mencakup Estonia. Orthophoto adalah foto udara yang diproses dan distorsi yang disebabkan oleh relief medan, kemiringan kamera relatif terhadap tanah pada saat eksposur, dan proyeksi sentral kamera dihilangkan. Ortophoto digital memiliki ukuran atau resolusi piksel tertentu yang …
[null,null,[],[[["\u003cp\u003eThe "Estonia/Maamet/orthos/mono_low_flying" dataset provides orthophotos covering Estonia from 1993 to 2021.\u003c/p\u003e\n"],["\u003cp\u003eOrthophotos are aerial photos geometrically corrected to remove distortions caused by terrain and camera angle.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset focuses on densely populated areas with a resolution of 0.4 meters and a single grayscale band.\u003c/p\u003e\n"],["\u003cp\u003eThe data is free for commercial and non-commercial use with proper attribution to the Estonian Land Board.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is easily accessible and analyzable through the Google Earth Engine platform.\u003c/p\u003e\n"]]],[],null,["# Estonia mono low flying orthophotos\n\nDataset Availability\n: 1993-01-01T00:00:00Z--2021-06-16T00:00:00Z\n\nDataset Provider\n:\n\n\n [Estonia orthophotos](https://geoportaal.maaamet.ee/eng/Spatial-Data/Orthophotos-p309.html)\n\nTags\n:\n[estonia](/earth-engine/datasets/tags/estonia) [low-flying](/earth-engine/datasets/tags/low-flying) [orthophotos](/earth-engine/datasets/tags/orthophotos) \n\n#### Description\n\nOrthophotos are an aerial photo dataset covering Estonia.\n\nAn orthophoto is a processed aerial photo from which distortions caused\nby terrain relief, camera tilt relative to the ground at the moment of\nexposure and camera central projection are removed. A digital orthophoto\nhas a certain pixel size or resolution which shows the smallest\nindivisible exposed area on the ground (Ground Sampling Distance, GSD).\n\nOrthophotos have a nationwide coverage and correspond to the scale of\n1:5000-1:10000 (pixel size 20-40 cm). Orthophotos for densely-populated\nareas are produced with the pixel size of 10-16 cm.\n\nThe mono_low_flying dataset has a single grayscale band for\ndensely-populated areas.\n\nFor more information, please see the\n[Estonia orthophotos documentation](https://geoportaal.maaamet.ee/eng/Spatial-Data/Orthophotos-p309.html)\n\n### Bands\n\n\n**Pixel Size**\n\n0.4 meters\n\n**Bands**\n\n| Name | Min | Max | Pixel Size | Description |\n|--------|-----|-----|------------|-------------|\n| `mono` | 0 | 255 | meters | Grayscale |\n\n### Terms of Use\n\n**Terms of Use**\n\nThe data is free to use for commercial and non-commercial purposes for a\nnon-specified term, provided that proper attribution is given to the\nlicensor (e.g. Estonian Land Board) along with the title and age of the\ndata.\n\nFor more details please see the\n[Terms of use](https://geoportaal.maaamet.ee/docs/Avaandmed/Licence-of-open-data-of-Estonian-Land-Board.pdf)\n\n### Citations\n\nCitations:\n\n- Map data: Estonian Land Board\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('Estonia/Maamet/orthos/mono_low_flying');\nMap.setCenter(24.959, 58.148, 18);\nMap.addLayer(dataset, null, 'Estonia Maamet mono low flying');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/Estonia/Estonia_Maamet_orthos_mono_low_flying) \n[Estonia mono low flying orthophotos](/earth-engine/datasets/catalog/Estonia_Maamet_orthos_mono_low_flying) \nOrthophotos are an aerial photo dataset covering Estonia. An orthophoto is a processed aerial photo from which distortions caused by terrain relief, camera tilt relative to the ground at the moment of exposure and camera central projection are removed. A digital orthophoto has a certain pixel size or resolution which ... \nEstonia/Maamet/orthos/mono_low_flying, estonia,low-flying,orthophotos \n1993-01-01T00:00:00Z/2021-06-16T00:00:00Z \n57.3 21.5 59.5 28.1 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://geoportaal.maaamet.ee/eng/Spatial-Data/Orthophotos-p309.html)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/Estonia_Maamet_orthos_mono_low_flying)"]]
