Esse conjunto de dados aberto em grande escala consiste em contornos de edifícios derivados de imagens de satélite de alta resolução de 50 cm. Ele contém 1,8 bilhão de detecções de edifícios na África, América Latina, Caribe, Ásia Meridional e Sudeste Asiático. A inferência abrangeu uma área de 58 milhões de km².
Para cada edifício nesse conjunto de dados, incluímos o polígono que descreve a área de contato no chão, uma pontuação de confiança que indica a probabilidade de ser um edifício e um Plus Code correspondente ao centro do edifício. Não há informações sobre o tipo de edifício, o endereço ou outros detalhes além da geometria.
As pegadas de edifícios são úteis para uma série de aplicações importantes: desde estimativa de população, planejamento urbano e resposta humanitária até ciência ambiental e climática. O projeto é baseado em Gana, com foco inicial no continente africano e novas atualizações sobre o sul da Ásia, o sudeste da Ásia, a América Latina e o Caribe.
A inferência foi realizada em maio de 2023.
Para mais detalhes, consulte o site oficial do conjunto de dados Open Buildings.
Esquema da tabela
Esquema da tabela
Nome
Tipo
Descrição
area_in_meters
DOUBLE
Área do polígono em metros quadrados.
confiança
DOUBLE
Pontuação de confiança [0,65;1,0] atribuída pelo modelo.
full_plus_code
STRING
O Plus Code completo no centroide do polígono do edifício.
W. Sirko, S. Kashubin, M. Ritter, A. Annkah, Y.S.E. Bouchareb, Y. Dauphin,
D. Keysers, M. Neumann, M. Cisse, J.A. Quinn. Detecção de edifícios em escala continental com imagens de satélite de alta resolução. arXiv:2107.12283, 2021.
Esse conjunto de dados abertos em grande escala consiste em contornos de edifícios derivados de imagens de satélite de alta resolução de 50 cm. Ele contém 1,8 bilhão de detecções de edifícios na África, América Latina, Caribe, Ásia Meridional e Sudeste Asiático. A inferência abrangeu uma área de 58 milhões de km². Para cada edifício neste conjunto de dados, incluímos o polígono que descreve…
[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)"]]
