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Microsoft Building Footprints, Bronx County NY, 2018

Identification Information
Citation
Originator
Microsoft
Publication Date
20180713
Title
Microsoft Building Footprints, Bronx County NY, 2018
Edition
v1.1
Geospatial Data Presentation Form
vector digital data
Series Information
Series Name
Microsoft Building Footprints
Issue Identification
Bronx County NY
Online Linkage
https://cugir.library.cornell.edu/catalog/cugir-009034
Abstract
This dataset provides a single county subset of Microsoft's computer-generated building footprints. The original footprints, covering all 50 US States, were created via a two-stage process. In the first step, semantic segmentation, a deep neural network was used to recognize building pixels on Bing aerial imagery, which is a composite of multiple sources of varying dates. In the second step, building pixels blobs were converted into polygons. It is not perfect, particularly in dense urban areas.
Purpose
This dataset provides a relatively complete dataset of building outlines, especially useful for areas where official building footprints may not exist.
Supplemental Information
A more detailed description of the project, including evaluation metrics, can be found at https://github.com/Microsoft/USBuildingFootprints
Temporal Extent
Currentness Reference
Publication date
Time Instant
20180713
Bounding Box
West
-73.933479
East
-73.769128
North
40.914923
South
40.786827
Theme Keyword
buildings
Theme Keyword Thesaurus
None
ISO Topic Category
structure
Theme Keyword
structure
Theme Keyword Thesaurus
CUGIR Category
Place Keyword
Bronx County NY
Place Keyword Thesaurus
None
Temporal Keyword
Access Restrictions
none
Use Restrictions
This data is licensed by Microsoft under the Open Data Commons Open Database License (ODbL) https://opendatacommons.org/licenses/odbl/
Status
Complete
Maintenance and Update Frequency
Unknown
Data Quality Information
Logical Consistency Report
Building footprint boundaries were computer-generated from pixel data, occasionally resulting in invalid polygons, which have been automatically repaired.
Completeness Report
Based on an evaluation set of 15k buildings, precision is 99.3%, recall is 93.5%. A building was included in the county-based subset if it was at least partially within the county.
Horizontal Positional Accuracy Report
Based on the evaluation set, intersection over union is 0.85, shape distance is 0.33, average rotation error is 1.6 degrees. More details at https://github.com/Microsoft/USBuildingFootprints
Lineage
Source
Originator
Microsoft
Publication Date
20180713
Title
US Building Footprints, New York
Online Linkage
https://usbuildingdata.blob.core.windows.net/usbuildings-v1-1/NewYork.zip
Type of Source Media
GeoJSON
Source Temporal Extent
Time Period Information
Single Date/Time
Calendar Date
20180713
Source Currentness Reference
publication date
Contribution
Original statewide GeoJSON file from Microsoft, consisting of 4,844,438 buildings in New York State.
Spatial Data Organization Information
Direct Spatial Reference Method
Vector
Point and Vector Object Information
SDTS Terms Description
SDTS Point and Vector Object Type
G-polygon
Point and Vector Object Count
42617
Spatial Reference Information
Horizontal Coordinate System Definition
Geographic
Latitude Resolution
0.000001
Longitude Resolution
0.000001
Geographic Coordinate Units
Decimal degrees
Geodetic Model
Horizontal Datum Name
D_WGS_1984
Ellipsoid Name
WGS_1984
Semi-major Axis
6378137.000000
Denominator of Flattening Ratio
298.257224
Entity and Attribute Information
Entity Type
Entity Type Label
buildings
Entity Type Definition
buildings
Entity Type Definition Source
Microsoft
Attributes
fid
arbitrary feature ID (integer id)
Definition Source
None
Distribution Information
Format Name
Shapefile
Format Name
metadata
Format Name
HTML metadata
Format Name
KML
Format Name
GeoJSON
Format Name
OGC:WMS
Distributor
Albert R. Mann Library
Online Access
https://cugir-data.s3.amazonaws.com/00/90/34/cugir-009034.zip
Online Access
https://cugir-data.s3.amazonaws.com/00/90/34/fgdc.xml
Online Access
https://cugir-data.s3.amazonaws.com/00/90/34/fgdc.html
Online Access
https://cugir.library.cornell.edu/geoserver/cugir/wfs?version=1.0.0request=GetFeaturetypeName=cugir009034outputFormat=application%2Fvnd.google-earth.kml%2Bxml
Online Access
https://cugir.library.cornell.edu/geoserver/cugir/wfs?version=1.0.0request=GetFeaturetypeName=cugir009034outputFormat=application%2Fjson
Online Access
https://cugir.library.cornell.edu/geoserver/cugir/wms?version=1.1.0request=GetMaplayers=cugir009034bbox=-73.93840953,40.78298412,-73.76419747,40.91876588width=256height=199srs=EPSG:4326format=image/png
Name
Metadata Reference Information
Metadata Date
20190612
Metadata Contact
Contact Information
Contact Organization Primary
Contact Organization
Albert R. Mann Library
Contact Address
Address
Albert R. Mann Library
City
Ithaca
State or Province
New York
Postal Code
14853
Country
USA
Contact Voice Telephone
607-255-5406
Contact Electronic Mail Address
mann-ref@cornell.edu
Metadata Standard Name
FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version
FGDC-STD-001-1998
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