E-Terra - Digital Globe Products

home

Products

home :: Contact Us :: Products

E-Terra, LLC.
Corporate Headquarters
800 E. Dimond Blvd.
Suite 3-650
Anchorage, Alaska 99515
Phone: (907)562-1500
Toll-free: (866)562-1500
Company Profile

Basic Imagery

Basic Imagery products are designed for users having advanced image processing capabilities. DigitalGlobe supplies QuickBird camera model information with each Basic Imagery product to permit you to perform sophisticated photogrammetric processing such as orthorectification and three dimensional feature extraction. Basic imagery is the least processed image product of the DigitalGlobe product suite; only corrections for radiometric distortions and adjustments for internal sensor geometry, optical and sensor distortions have been performed on each scene ordered.


	60-centimeter panchromatic image See Large Version


	2.44-meter multispectral image Four bands: Blue, Green, Red, and Near-Infrared See Large Version

Features and Benefits

System Features	System Benefits
Spacecraft telemetry and camera model supplied with satellite imagery	Perform your own photogrammetric processing on raw data to produce orthorectified imagery and first generation basemaps
Highest resolution available from a commercial satellite 61-cm (2 ft) panchromatic at nadir 2.44-m (8 ft) multispectral at nadir	Identify features, create maps, and detect changes from recent global imagery at the highest resolution possible from commercial imaging satellites
Largest image swath collection size 16.5-km (10.3 mi) width at nadir	Map large areas faster with fewer files to manage and process
High radiometric response 11-bit digitization (up to 2048 levels of gray scale) Discrete non-overlapping bands	Improve feature classification and identification in dark or bright areas such as building shadows or snow and perform more flexible image enhancement
Open systems Camera model information supplied Compatible with leading commercial software providers Popular image file formats	Get your high-resolution satellite orthoimagery project up and running quickly and easily using your existing commercial software

Specifications

Spatial and Spectral Resolution
	Panchromatic	Multispectral
Spectral Characteristics	Black & White	Blue	Green	Red	Near IR
	450 to 900-nm	450 to 520-nm	520 to 600-nm	630 to 690-nm	760 to 900-nm
Pixel Resolution¹	61-cm to 72-cm (2 to 2.4-ft)	2.44 to 2.88-m (8 to 9.4-ft)
Scene Dimensions	27,552 x 27,424 pixels	6,888 x 6,856 pixels
Scene Size²	272-km2 (nadir) to 435-km2 (25° off-nadir) (105 to 168-mi2)
	16.5-km2 (nadir) to 20.8-km2 (25° off-nadir) 10.3 to 12.9-mi2)

Image Accuracy
Positional Accuracy³	CE 90%	RMSE
	23-meters (75-feet)	14-meters (46-feet)

Processing
Radiometric Corrections	Sensor Corrections	Resampling Options
Relative radiometric response between detectors Non-responsive detector fill Conversion to absolute radiometry	Internal detector geometry Optical distortion Scan distortion Any line-rate variations Registration of the multispectral bands	4x4 cubic convolution 2x2 bilinear Nearest neighbor 8-point sinc MTF kernel

Order Parameters
Product Type	Panchromatic, multispectral or both
Image Bits/Pixel	8 or 16 bits
File Formats	GeoTIFF 1.0, NITF 2.1 or NITF 2.0

1 - Pixel resolution varies across the image due to off nadir viewing angle. Pixels closest to nadir have a better resolution than those farthest from nadir. Resolution varying from nadir up to 25° are reported here. DigitalGlobe can collect targets up to 45°, upon request.
2 - Scene dimensions vary due to off nadir viewing angle. Scene sizes up to 25° are shown, but DigitalGlobe can collect targets up to 45°, upon request.
3 - Attained using supplied Image Support Data files and exclusive of sensor, viewing geometry and terrain distortions

Deliverables

Basic Imagery can be acquired directly from the DigitalGlobe archive or you can submit a new collection request. Basic Imagery is ordered by the scene, with a minimum purchase of a single scene up to a maximum of 10,000 km² per order.

Products are delivered on your choice of standard digital media with all the Image Support Data files needed for photogrammetric processing including attitude and ephemeris data, geometric calibration, camera model, image metadata, radiometric data, and rational functions.

Other Digitial Globe products:

Untitled Document