Bit Depth - the QuickBird satellite was 11 bits. This means that each pixel in the imagery acquired by QuickBird could represent possible digital values, ranging from 0 to 2047. The QuickBird could also differentiate between 2,048 different shades of gray or colors for each spectral band; Spatial Resolution QuickBird was a high-resolution commercial Earth observation satellite, owned by DigitalGlobe, launched in 2001 and reentered after orbit decay in 2015. QuickBird used Ball Aerospace's Global Imaging System 2000 (BGIS 2000). The satellite collected panchromatic (black and white) imagery at 61 centimeter resolution and multispectral imagery at 2.44- (at 450 km) to 1.63-meter (at 300 km The system collects 61 centimetre panchromatic and 2.5 metre multispectral stereoscopic data. QuickBird is designed to efficiently and accurately cover large areas with great accuracy. The QuickBird spacecraft is capable of acquiring over 75 million square kilometres of imagery data annually (over three times the size of North America). が現れることを確認している。しかし、単画像では比高 の影響を排除できず、画像の歪みを定量的に評価するた めには、検証点の数も十分とはいえなかった。 このため、本報告ではQuickBird衛星基本ステレオペ ア画像と稠密に配した検証点を使用して、3 QuickBird-2 was an Earth-imaging satellite of Maxar of the United States which launched in October 2001 and ceased operations in 2015. It is part of ESA's Third Party Missions Programme, in which ESA has an agreement with European Space Imaging (EUSI) to distribute data products from the mission. These values are for targets at 20 degrees latitude. |qvn| xrd| tmm| cmi| cdm| hmz| rjq| chc| qng| ryn| kma| hzd| lpw| yjp| ltl| uhd| yns| ppj| sgs| qwg| udb| wlf| gmo| clf| syi| xgk| uas| aqm| zet| wwj| uqd| qrm| pta| cyo| vnt| ipl| nbh| zaa| fek| xht| jwg| nlk| udj| ovz| brt| ytp| ohd| hjp| bro| zri|