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Global building footprints​ in Cambodia

According to Bing Maps, the global building footprints around the world have been detected in 776,712,641 building footprint polygon geometries between 2014 and 2021 including Maxar and Airbus imagery. The dataset in line delimited GeoJSON format is freely available for download and uses under Open Data Commons Open Database License (ODbl) by Microsoft and coordinate reference system as EPSG: 4326. This released underlying data from Microsoft has a continued interest in supporting a thriving OpenStreetMap ecosystem and creating the data in two stages: 1/ Semantic segmentation-Recognizing building pixels on an aerial image under deep neural networks (DNNs) and 2/ Polygonization- Converting building pixel detections into polygons. With evaluation set metrics, buildings are computed on a set of building polygon labels for each region and matched metrics in the following precision: Africa 94.4%, Caribbean 92.2%, Central Asia 97.17%, Europe 94.3%, Middle East 95.7%, South America 95.4%, and South Asia 94.8%. However, the recall evaluation, there are Africa 70.9%, Caribbean 76.8%, Central Asia 79.47%, Europe 85.9%, Middle East 85.4%, South America 78%, and South Asia 76.7%. The source also states with measuring the quality of matched building polygons in intersection over Union and dominant angle rotation error.

In Cambodia, dataset count in building is with 3,874,425 and available to download via https://minedbuildings.blob.core.windows.net/global-buildings/2022-05-02/Cambodia.zip.

Data Resources (2)

Data Resource Preview - Building footprints in Cambodia

Additional Info

Field Value
အချက်အလက်အစု ခေါင်းစဉ်အမျိုးအစား
  • Environment and natural resources
  • Open technologies
  • Rural water supply
  • Urban development trends
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အချက်အလက်အစုကို ရည်ညွှန်းသောရက်စွဲ 2022၊ 23 ဧပြီ
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သတ်မှတ်ဧရိယာ၏ အနောက်ဘက် ကိုဩဒိနိတ် 102.54859870122804
သတ်မှတ်ဧရိယာ၏ အရှေ့ဘက် ကိုဩဒိနိတ် 107.38900215119163
သတ်မှတ်ဧရိယာ၏ တောင်ဘက် ကိုဩဒိနိတ် 10.496327885971324
သတ်မှတ်ဧရိယာ၏ မြောက်ဘက် ကိုဩဒိနိတ် 14.344214200747942
နေရာဆိုင်ရာ ရည်ညွှန်းစနစ် WGS 84 (EPSG:4326) (CRS:84)
အနေအထား တိကျမှန်ကန်မှု Building footprint polygon geometries located around the world in line delimited GeoJSON format. The observation of Siem Reap province seems to be missing data due to data processing from original source.
ဝိသေသဆိုင်ရာ တိကျမှန်ကန်မှု There are no known issues with attribute accuracy.
ကျိုးကြောင်းဆီလျော်မှုရှိ၊ မရှိ There are no known issues with logical consistency.
ဖြစ်စဉ် The data format​ is in GEOJSON format and obtained from https://github.com/microsoft/GlobalMLBuildingFootprints/blob/main/README.md
ရင်းမြစ်များ The data is derived from https://github.com/microsoft/GlobalMLBuildingFootprints/blob/main/README.md
တာဝန်ရှိသော အဖွဲ့အစည်း The Microsoft Open Source Email: opencode@microsoft.com
Metadata ကို ဖန်တီးသူ၏ သတင်းအချက်အလက် Metadata last updated on 2022-05-31. For inquiries contact: Open Development Cambodia, Email: contact@opendevcam.net, Website: http://www.opendevcam.net Address: 23B St. 606, Phnom Penh, Cambodia
ခွင့်ပြုချက် Creative Commons Attribution Share-Alike
မူပိုင်ခွင့် Yes
ပြင်ဆင်ချက် 1
အဓိကစကားလုံးများ Building footprints
တင်ခဲ့သည့်ရက်စွဲ မေ 26, 2022, 03:18 (UTC)
ပြန်လည်ပြင်ဆင်သည့်ရက်စွဲ ဇွန် 1, 2022, 09:52 (UTC)