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	<title>CenturyFive.net &#187; Image Sensor</title>
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		<title>Method of Making an Aerial photography</title>
		<link>http://www.centuryfive.net/method-of-making-an-aerial-photography.html</link>
		<comments>http://www.centuryfive.net/method-of-making-an-aerial-photography.html#comments</comments>
		<pubDate>Mon, 04 Aug 2008 13:00:09 +0000</pubDate>
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				<category><![CDATA[Outsourcing]]></category>
		<category><![CDATA[Elevation Angle]]></category>
		<category><![CDATA[Image Data]]></category>
		<category><![CDATA[Image Distortion]]></category>
		<category><![CDATA[Image Sensor]]></category>
		<category><![CDATA[Satellite Images]]></category>

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		<description><![CDATA[Another important role of these photos is to provide a foundation for collecting the spatial information needed. Data in the form of the satellite images or aerial photographs must be taken without any distortions, if you need to gather information useful for a mapping or GIS system in the case of roads, marine forms or vegetation.This process of correcting the distortions of a satellite image of aerial photograph is called orthorectification. This process allows you to make direct and precise measurements of areas, distances, angles, positions etc.Why an aerial photograph needs correction?The main challenge of an aerial photograph compared to a non-aerial photograph is that an aerial photograph needs perspective correction. An aerial photo is usually captured at an angle to the object being photographed. Here, the perspective of the photograph will be incorrect with near objects compared to distant objects. By perspective correction, the objects in the image and <a href="http://www.centuryfive.net/method-of-making-an-aerial-photography.html">Read more...</a>]]></description>
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