Ten obszerny otwarty zbiór danych zawiera kontury budynków uzyskane na podstawie zdjęć satelitarnych o wysokiej rozdzielczości (50 cm). Zawiera 1,8 mld wykrytych budynków w Afryce, Ameryce Łacińskiej, na Karaibach, w Azji Południowej i Południowo-Wschodniej. Wnioskowanie obejmowało obszar o powierzchni 58 mln km².
W przypadku każdego budynku w tym zbiorze danych podajemy wielokąt opisujący jego rzut na ziemię, poziom ufności wskazujący, jak bardzo jesteśmy pewni, że jest to budynek, oraz kod Plus Code odpowiadający środkowi budynku. Nie ma informacji o rodzaju budynku, jego adresie ani żadnych innych szczegółów poza jego geometrią.
Obrysy budynków są przydatne w wielu ważnych zastosowaniach: od szacowania liczby ludności, planowania urbanistycznego i działań humanitarnych po nauki o środowisku i klimacie. Projekt jest realizowany w Ghanie, a początkowo skupia się na kontynencie afrykańskim. Nowe aktualizacje będą dotyczyć Azji Południowej, Azji Południowo-Wschodniej, Ameryki Łacińskiej i Karaibów.
Wnioskowanie przeprowadzono w maju 2023 roku.
Więcej informacji znajdziesz na oficjalnej stronie zbioru danych Open Buildings.
Schemat tabeli
Schemat tabeli
Nazwa
Typ
Opis
area_in_meters
LICZBA ZMIENNOPRZECINKOWA O PODWÓJNEJ PRECYZJI
Pole wielokąta w metrach kwadratowych.
pewność,
LICZBA ZMIENNOPRZECINKOWA O PODWÓJNEJ PRECYZJI
Wskaźnik ufności [0,65; 1,0] przypisany przez model.
W. Sirko, S. Kashubin, M. Ritter, A. Annkah, Y.S.E. Bouchareb, Y. Dauphin,
D. Keysers, M. Neumann, M. Cisse, J.A. Quinn. Wykrywanie budynków na poziomie kontynentu na podstawie zdjęć satelitarnych o wysokiej rozdzielczości. arXiv:2107.12283, 2021.
Ten duży, otwarty zbiór danych zawiera kontury budynków uzyskane na podstawie zdjęć satelitarnych o wysokiej rozdzielczości (50 cm). Zawiera 1,8 mld wykrytych budynków w Afryce, Ameryce Łacińskiej, na Karaibach, w Azji Południowej i Południowo-Wschodniej. Wnioskowanie obejmowało obszar o powierzchni 58 mln km². W przypadku każdego budynku w tym zbiorze danych uwzględniamy wielokąt opisujący …
[null,null,[],[[["\u003cp\u003eThe Open Buildings dataset provides outlines of 1.8B buildings derived from 50 cm satellite imagery across Africa, Latin America, Caribbean, South Asia, and Southeast Asia.\u003c/p\u003e\n"],["\u003cp\u003eIt includes building footprints, a confidence score, and a Plus Code for each building, covering an area of 58M km².\u003c/p\u003e\n"],["\u003cp\u003eBuilding footprints can be used for various applications, including population estimation, urban planning, and environmental science.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is available under the CC-BY-4.0 license and is accessible through Google Earth Engine.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes building confidence scores, allowing users to filter buildings based on the model's certainty.\u003c/p\u003e\n"]]],[],null,["# Open Buildings V3 Polygons\n\nDataset Availability\n: 2023-05-30T00:00:00Z--2023-05-30T00:00:00Z\n\nDataset Provider\n:\n\n\n [Google Research - Open Buildings](https://sites.research.google/open-buildings/)\n\nTags\n:\n [africa](/earth-engine/datasets/tags/africa) [asia](/earth-engine/datasets/tags/asia) [building](/earth-engine/datasets/tags/building) [built-up](/earth-engine/datasets/tags/built-up) [open-buildings](/earth-engine/datasets/tags/open-buildings) [population](/earth-engine/datasets/tags/population) [south-asia](/earth-engine/datasets/tags/south-asia) [southeast-asia](/earth-engine/datasets/tags/southeast-asia) [table](/earth-engine/datasets/tags/table) \nstructure \n\n#### Description\n\nThis large-scale open dataset consists of outlines of buildings derived\nfrom high-resolution 50 cm satellite imagery. It contains 1.8B building\ndetections in Africa, Latin America, Caribbean, South Asia and Southeast\nAsia. The inference spanned an area of 58M km².\n\nFor each building in this dataset we include the polygon describing its\nfootprint on the ground, a confidence score indicating how sure we are that\nthis is a building, and a [Plus Code](https://plus.codes/) corresponding to\nthe center of the building. There is no information about the type of\nbuilding, its street address, or any details other than its geometry.\n\nBuilding footprints are useful for a range of important applications: from\npopulation estimation, urban planning and humanitarian response to\nenvironmental and climate science. The project is based in Ghana, with an\ninitial focus on the continent of Africa and new updates on South Asia,\nSouth-East Asia, Latin America and the Caribbean.\n\nInference was carried out during May 2023.\n\nFor more details see the official\n[website](https://sites.research.google/open-buildings/) of the Open\nBuildings dataset.\n\n### Table Schema\n\n**Table Schema**\n\n| Name | Type | Description |\n|--------------------|----------|-----------------------------------------------------------------------------|\n| area_in_meters | DOUBLE | Area in square meters of the polygon. |\n| confidence | DOUBLE | Confidence score \\[0.65;1.0\\] assigned by the model. |\n| full_plus_code | STRING | The full [Plus Code](https://plus.codes/) at the building polygon centroid. |\n| longitude_latitude | GEOMETRY | Centroid of the polygon. |\n\n### Terms of Use\n\n**Terms of Use**\n\n[CC-BY-4.0](https://spdx.org/licenses/CC-BY-4.0.html)\n\n### Citations\n\nCitations:\n\n- W. Sirko, S. Kashubin, M. Ritter, A. Annkah, Y.S.E. Bouchareb, Y. Dauphin,\n D. Keysers, M. Neumann, M. Cisse, J.A. Quinn. Continental-scale building\n detection from high resolution satellite imagery.\n [arXiv:2107.12283](https://arxiv.org/abs/2107.12283), 2021.\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\n// Visualization of GOOGLE/Research/open-buildings/v3/polygons.\n\nvar t = ee.FeatureCollection('GOOGLE/Research/open-buildings/v3/polygons');\n\nvar t_065_070 = t.filter('confidence \u003e= 0.65 && confidence \u003c 0.7');\nvar t_070_075 = t.filter('confidence \u003e= 0.7 && confidence \u003c 0.75');\nvar t_gte_075 = t.filter('confidence \u003e= 0.75');\n\nMap.addLayer(t_065_070, {color: 'FF0000'}, 'Buildings confidence [0.65; 0.7)');\nMap.addLayer(t_070_075, {color: 'FFFF00'}, 'Buildings confidence [0.7; 0.75)');\nMap.addLayer(t_gte_075, {color: '00FF00'}, 'Buildings confidence \u003e= 0.75');\nMap.setCenter(3.389, 6.492, 17); // Lagos, Nigeria\nMap.setOptions('SATELLITE');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/GOOGLE/GOOGLE_Research_open-buildings_v3_polygons)\n\n### Visualize as a FeatureView\n\n\nA `FeatureView` is a view-only, accelerated representation of a\n`FeatureCollection`. For more details, visit the\n[`FeatureView` documentation.](/earth-engine/guides/featureview_overview)\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 fvLayer = ui.Map.FeatureViewLayer(\n 'GOOGLE/Research/open-buildings/v3/polygons_FeatureView');\n\nvar visParams = {\n rules: [\n {\n filter: ee.Filter.expression('confidence \u003e= 0.65 && confidence \u003c 0.7'),\n color: 'FF0000'\n },\n {\n filter: ee.Filter.expression('confidence \u003e= 0.7 && confidence \u003c 0.75'),\n color: 'FFFF00'\n },\n {\n filter: ee.Filter.expression('confidence \u003e= 0.75'),\n color: '00FF00'\n },\n ]\n};\n\nfvLayer.setVisParams(visParams);\nfvLayer.setName('Buildings');\n\nMap.setCenter(3.389, 6.492, 17); // Lagos, Nigeria\nMap.add(fvLayer);\nMap.setOptions('SATELLITE');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/GOOGLE/GOOGLE_Research_open-buildings_v3_polygons_FeatureView) \n[Open Buildings V3 Polygons](/earth-engine/datasets/catalog/GOOGLE_Research_open-buildings_v3_polygons) \nThis large-scale open dataset consists of outlines of buildings derived from high-resolution 50 cm satellite imagery. It contains 1.8B building detections in Africa, Latin America, Caribbean, South Asia and Southeast Asia. The inference spanned an area of 58M km². For each building in this dataset we include the polygon describing ... \nGOOGLE/Research/open-buildings/v3/polygons, africa,asia,building,built-up,open-buildings,population,south-asia,southeast-asia,table \n2023-05-30T00:00:00Z/2023-05-30T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://sites.research.google/open-buildings/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/GOOGLE_Research_open-buildings_v3_polygons)"]]
