Orthorectification of WorldView-2 satellite imagery, of the Cape Poinsett area, Budd Coast, Antarctica, captured 2 November 2013
The Australian Antarctic Data Centre (AADC) has WorldView-2 satellite imagery, of the Cape Poinsett area, Budd Coast, Antarctica, captured 2 November 2013. The panchromatic and multispectral bands were orthorectified using the RPC data files. The orthorectified image files are called WV_2Nov2013_pan...
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Australian Antarctic Data Centre
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Online Access: | https://researchdata.ands.org.au/orthorectification-worldview-2-november-2013/700694 https://data.aad.gov.au/metadata/records/cape_poinsett_worldview_2nov2013 http://nla.gov.au/nla.party-617536 |
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ftands:oai:ands.org.au::700694 2023-05-15T13:46:58+02:00 Orthorectification of WorldView-2 satellite imagery, of the Cape Poinsett area, Budd Coast, Antarctica, captured 2 November 2013 BENDER, ANGELA (hasPrincipalInvestigator) BENDER, ANGELA (processor) BROLSMA, HENK (hasPrincipalInvestigator) BROLSMA, HENK (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-65.765; southlimit=-65.866; westlimit=112.974; eastLimit=113.255; projection=WGS84 Temporal: From 2013-11-02 to 2013-11-02 https://researchdata.ands.org.au/orthorectification-worldview-2-november-2013/700694 https://data.aad.gov.au/metadata/records/cape_poinsett_worldview_2nov2013 http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/orthorectification-worldview-2-november-2013/700694 cbcc830e-4107-4699-95da-3dd7f974c011 cape_poinsett_worldview_2nov2013 https://data.aad.gov.au/metadata/records/cape_poinsett_worldview_2nov2013 http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre imageryBaseMapsEarthCover INFRARED IMAGERY EARTH SCIENCE SPECTRAL/ENGINEERING INFRARED WAVELENGTHS VISIBLE IMAGERY VISIBLE WAVELENGTHS Satellite Image Digital Globe SATELLITES WORLDVIEW-2 CONTINENT > ANTARCTICA OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR dataset ftands 2020-01-05T21:17:57Z The Australian Antarctic Data Centre (AADC) has WorldView-2 satellite imagery, of the Cape Poinsett area, Budd Coast, Antarctica, captured 2 November 2013. The panchromatic and multispectral bands were orthorectified using the RPC data files. The orthorectified image files are called WV_2Nov2013_pan_orc and WV_2Nov2013_ms_orc. These two images were then pansharpened using Gram-Schmidt spectral sharpening, the resulting image is called WV_2Nov2013_ps_orc. The processing was done by Angela Bender of the AADC using IDL/ENVI version 4.8. WorldView-2 geometric accuracy specification is 6.5 m CE90, with predicted performance in the range of 4.6 to 10.7 m (15 to 35 feet) CE90. Given that there were no accurate ground control points or digital elevation models available within the image area it was decided that the orthorectification be carried out using the fast mode orthorectification process which derives a model from the RPC co-efficients. Rational polynomial coefficients (RPCs) model the ground-to-image relationship as a third-order, rational, ground-to-image polynomial. The RPC orthorectification process works on a pixel-by-pixel basis to provide correct ground locations, so it can take a significant amount of processing time. An alternative method to the standard RPC orthorectification is a "fast mode" orthorectification. This method works by sacrificing accuracy for speed, since processing time is much faster but the results are slightly less accurate. Instead of solving the RPC equation for each pixel, the fast mode orthorectification solves for a grid of points spaced throughout the image and triangulates a warp between the points. This approach assumes that the geometric accuracy of the WorldView-2 image based on its RPC and attitude information is more accurate than a polynomial correction based on inaccurate ground control points. In this orthorectification approach the image is assumed to be in the correct location (at sea level) and topographic relief distortions are not removed. Dataset Antarc* Antarctic Antarctica Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Antarctic Budd Coast ENVELOPE(112.000,112.000,-66.500,-66.500) Cape Poinsett ENVELOPE(113.217,113.217,-65.767,-65.767) Poinsett ENVELOPE(113.217,113.217,-65.767,-65.767) Southern Ocean ENVELOPE(112.974,113.255,-65.765,-65.866) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
imageryBaseMapsEarthCover INFRARED IMAGERY EARTH SCIENCE SPECTRAL/ENGINEERING INFRARED WAVELENGTHS VISIBLE IMAGERY VISIBLE WAVELENGTHS Satellite Image Digital Globe SATELLITES WORLDVIEW-2 CONTINENT > ANTARCTICA OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR |
spellingShingle |
imageryBaseMapsEarthCover INFRARED IMAGERY EARTH SCIENCE SPECTRAL/ENGINEERING INFRARED WAVELENGTHS VISIBLE IMAGERY VISIBLE WAVELENGTHS Satellite Image Digital Globe SATELLITES WORLDVIEW-2 CONTINENT > ANTARCTICA OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR Orthorectification of WorldView-2 satellite imagery, of the Cape Poinsett area, Budd Coast, Antarctica, captured 2 November 2013 |
topic_facet |
imageryBaseMapsEarthCover INFRARED IMAGERY EARTH SCIENCE SPECTRAL/ENGINEERING INFRARED WAVELENGTHS VISIBLE IMAGERY VISIBLE WAVELENGTHS Satellite Image Digital Globe SATELLITES WORLDVIEW-2 CONTINENT > ANTARCTICA OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR |
description |
The Australian Antarctic Data Centre (AADC) has WorldView-2 satellite imagery, of the Cape Poinsett area, Budd Coast, Antarctica, captured 2 November 2013. The panchromatic and multispectral bands were orthorectified using the RPC data files. The orthorectified image files are called WV_2Nov2013_pan_orc and WV_2Nov2013_ms_orc. These two images were then pansharpened using Gram-Schmidt spectral sharpening, the resulting image is called WV_2Nov2013_ps_orc. The processing was done by Angela Bender of the AADC using IDL/ENVI version 4.8. WorldView-2 geometric accuracy specification is 6.5 m CE90, with predicted performance in the range of 4.6 to 10.7 m (15 to 35 feet) CE90. Given that there were no accurate ground control points or digital elevation models available within the image area it was decided that the orthorectification be carried out using the fast mode orthorectification process which derives a model from the RPC co-efficients. Rational polynomial coefficients (RPCs) model the ground-to-image relationship as a third-order, rational, ground-to-image polynomial. The RPC orthorectification process works on a pixel-by-pixel basis to provide correct ground locations, so it can take a significant amount of processing time. An alternative method to the standard RPC orthorectification is a "fast mode" orthorectification. This method works by sacrificing accuracy for speed, since processing time is much faster but the results are slightly less accurate. Instead of solving the RPC equation for each pixel, the fast mode orthorectification solves for a grid of points spaced throughout the image and triangulates a warp between the points. This approach assumes that the geometric accuracy of the WorldView-2 image based on its RPC and attitude information is more accurate than a polynomial correction based on inaccurate ground control points. In this orthorectification approach the image is assumed to be in the correct location (at sea level) and topographic relief distortions are not removed. |
author2 |
BENDER, ANGELA (hasPrincipalInvestigator) BENDER, ANGELA (processor) BROLSMA, HENK (hasPrincipalInvestigator) BROLSMA, HENK (processor) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Orthorectification of WorldView-2 satellite imagery, of the Cape Poinsett area, Budd Coast, Antarctica, captured 2 November 2013 |
title_short |
Orthorectification of WorldView-2 satellite imagery, of the Cape Poinsett area, Budd Coast, Antarctica, captured 2 November 2013 |
title_full |
Orthorectification of WorldView-2 satellite imagery, of the Cape Poinsett area, Budd Coast, Antarctica, captured 2 November 2013 |
title_fullStr |
Orthorectification of WorldView-2 satellite imagery, of the Cape Poinsett area, Budd Coast, Antarctica, captured 2 November 2013 |
title_full_unstemmed |
Orthorectification of WorldView-2 satellite imagery, of the Cape Poinsett area, Budd Coast, Antarctica, captured 2 November 2013 |
title_sort |
orthorectification of worldview-2 satellite imagery, of the cape poinsett area, budd coast, antarctica, captured 2 november 2013 |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/orthorectification-worldview-2-november-2013/700694 https://data.aad.gov.au/metadata/records/cape_poinsett_worldview_2nov2013 http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-65.765; southlimit=-65.866; westlimit=112.974; eastLimit=113.255; projection=WGS84 Temporal: From 2013-11-02 to 2013-11-02 |
long_lat |
ENVELOPE(112.000,112.000,-66.500,-66.500) ENVELOPE(113.217,113.217,-65.767,-65.767) ENVELOPE(113.217,113.217,-65.767,-65.767) ENVELOPE(112.974,113.255,-65.765,-65.866) |
geographic |
Antarctic Budd Coast Cape Poinsett Poinsett Southern Ocean |
geographic_facet |
Antarctic Budd Coast Cape Poinsett Poinsett Southern Ocean |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/orthorectification-worldview-2-november-2013/700694 cbcc830e-4107-4699-95da-3dd7f974c011 cape_poinsett_worldview_2nov2013 https://data.aad.gov.au/metadata/records/cape_poinsett_worldview_2nov2013 http://nla.gov.au/nla.party-617536 |
_version_ |
1766245970850349056 |