Pennsylvania Spatial Data Access (PASDA) The Pennsylvania Geospatial Data Clearinghouse
Title: 2015 City of Philadelphia AccuPlus Orthomosaic
This dataset consists of ortho imagery produced from nadir images captured by Pictometry International covering the City of Philadelphia, PA, approximately 196 sq miles total. Automatic aerial triangulation (AAT) was performed. The triangulated frames were rectified to a LiDAR derived DEM. Mosaicing was performed using an automatic seaming algorithm and manually edited to eliminate seams through elevated features where possible. The dataset includes 1024 GeoTIFF files, 1 ECW, and 1 MrSID file. The data was collected at a 3in Ground Sample Distance (GSD) over between April 12 and May 8th, 2015. At the time of capture ground condiitons were leaf-off, snow free, and water was at normal levels.
GPS/INS Processing: During the flight, GPS and INS data was logged on board the aircraft. Simultaneously, GPS data was logged by a stationary reference station network on the ground. After completion of the flight, this data was post-processed using Applanix POSPac v7.1 to generate a smoothed best estimate trajectory (SBET).
Pennsylvania Spatial Data Access (PASDA)
Pictometry International Corp.
The City of Philadelphia reserves all rights in the City’s databases and any data contained therein, and the end user’s use of the data does not constitute a transfer of, nor does the end user receive, any title or interest in the database or any other City data. The City of Philadelphia makes no representation about the accuracy of any specific information in this data and is provided “as is” and without Warranty of any kind. The user of this data will assume complete responsibility for any and all occurrences resulting from its use or display and will hold the City of Philadelphia harmless from any and all claims, demands, liabilities, obligations, damages, suits, judgments or settlements, including reasonable costs and attorneys’ fees, that arise from use of this data.
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