Service Description: Building footprints for Southwest Louisiana including Allen, Beauregard, Cameron, Calcasieu and Jefferson Davis Parishes
Service ItemId: ef09ed55319a47b3981e512853a055a9
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: False
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Description: THIS FEATURE CLASS CONTAINS PRELIMINARY STRUCTURE (BUILDING) POLYGONS FOR THE Laura AOI. The structures (buildings) are represented by polygon geometries with an attribute table described elsewhere in the metadata. WorldView-02 and WorldView-03 high resolution multispectral imagery was obtained for Laura AOI. The raw imagery (1B product) for Laura AOI was then pan-sharpened and orthorectified. Complete coverage of Laura AOI with minimal cloud cover includes imagery acquired between 05/16/2011 and 08/18/2020 and spatial resolutions between 0.46-0.85 meters. Once the imagery pre-processing was complete, training data was acquired and multiple convolutional neural network (CNN) models were generated. High Performance Computing (HPC) environments at ORNL were then used to apply the CNN to the imagery resulting in this preliminary structure (building) feature class. Minimal review of this dataset has been completed. Verification and validation of this dataset was conducted by an algorithmic model. See ‘Automated’ domain value for VAL_METHOD for more details. Only structure polygon results whose area is greater than 450 square feet are included in this feature class. The attribute schema associated with this feature class has been revised from previous data submissions. Population of some attributes is incomplete and identified in the Entity and Attribute Information section of this metadata. The visual representation of the features in this feature class have been improved.
Copyright Text: Oak Ridge National Laboratory (ORNL)
Spatial Reference: 4326 (4326)
Initial Extent:
XMin: -94.6855581400891
YMin: 28.8167557071634
XMax: -91.4974139729716
YMax: 33.1801373319634
Spatial Reference: 4326 (4326)
Full Extent:
XMin: -93.885096877
YMin: 29.6034228350001
XMax: -92.592721275
YMax: 30.898960104
Spatial Reference: 4326 (4326)
Units: esriDecimalDegrees
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