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Aerial Imagery

Off-The-Shelf Multispectral Aerial Imagery at Multiple Resolutions

Hexagon’s aerial data program, the HxGN Content Program, offers the largest library of aerial imagery and digital surface models across the United States, Europe and parts of Canada. The data is ortho-rectified, highly accurate, and available at multiple resolutions. The exceptional data consistency over large areas makes this the ideal training data set for machine learning and AI algorithms. Flexible data use terms allow users to extract features and derive analytics.

Description

The HxGN Content Program, Hexagon’s aerial data program, offers the largest library of high-resolution multispectral aerial imagery and elevation data of the United States, Europe, and parts of Canada. The aerial data is orthorectified, accurate, and available at multiple resolutions. Data is captured on pre-defined schedules with flexible flight plans, enabling 100% artefact-free imagery with unparalleled consistency and accuracy.

Hexagon follows rigorous acquisition and processing standards to offer the highest positional accuracy for applications such as mapping, urban planning, asset management, public safety, utility mapping, insurance, app development, and many more. The exceptional data consistency over large areas makes it the ideal training data set for machine learning and AI algorithms. Flexible data use terms allow users to create derived products.

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Specifications

General

Deliverable raster products

Stereo Imagery, Orthorectified imagery, DEM, DTM

Options for delivery

FTP, Hard Drive, Individual Files, Webservices (WMS), Maps API, Ortho Tiles or GeoJSON

Deliverable vector products [2D and 3D]

Point cloud, Triangulated mesh

Year of introduction

2014

Satellites or constellations of delivered products

NA - Aerial Imagery

aircraft or satellite

Continents

Image corrections

Proces of geometric correction

Photogrametric bundle adjustment

Image sharpening methods

Several options

Sensor corrected

Y

Proces of sensor correction

Geometric - insitu flight calibration Radiometric - lab with integrating sphere

Radiometrically corrected

Y

Process of radiometric and/or atmospheric correction

Several options

Imagery Specifications

Spectral band types

Red, Green, Blue, Near-infrared

Data formats of imagery

GeoTIFF, JPEG, TIFF, jpg2000, MrSID, ECW, IMG

Spectral bands [specify wavelengths]

Red 619-651 nm, Green 525-585 nm, Blue 435-495 nm, NIR 808-882nm

Dynamic range of RGB image [bit depth]

14bit

Dynamic range of other products [specify bit depth and spectral band]

14bit dynamic range for all bands. 8 or 16 bit RGB, RGBN or NRGB products

Revisit time and delivery

Revisit time for defined data products

Variable

Delivery time [Time between data capture and delivery; in hours]

NA

Resolution and Accuracy

Resolution of RGB imagery [best GSD in centimeters]

15 cm resolution 30 cm resolution

Resolution of other bands [GSD in centimeters]

All bands acquired at same resolution

Geolocation accuracy [RMSE at nadir in centimeters]

20 cm nominal GSD RMSE x/y = 50 cm RMSEr = 0.71 m 40 cm nominal GSD RMSEx/y = 120 cm RMSEr = 170 cm

Geolocation accuracy [CE90 at nadir in centimeters]

20 cm nominal GSD CE90 = 170 cm 40 cm nominal GSD CE90 = 260 cm

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