ImageAmerica Aviation, Inc. [1] is an aerial photography company that was acquired by Google in July 2007. [2] [3] [4] [5] [6] [7] [8] The company specialized in creating aerial photos with "accuracy, quick delivery and low cost". [5] It previously sold its services primarily to city, county, state, and federal governments and to corporate customers. ImageAmerica also made money by selling low-cost imagery to county appraisers and assessors. The company's clients include the Texas Department of Transportation, the U.S. Geological Survey, and the Lucas County office that covers Toledo, Ohio. For satellite imaging, the company charges US$99 per 1 square mile (2.6 km2), compared to other companies which could charge from $500 to $700 and for a lower quality than what ImageAmerica offers. [9] It also developed its own DDP-2 (Direct Digital Panoramic) camera system. The system is housed in an aircraft. It has the ability to capture details as small as 6 inches (150 mm) to 12 inches (300 mm). ImageAmerica's patented [7] processing system has the ability to produce orthorectified imagery corrected for perspective distortions. [5] The company's technology also uses sensors which are based on a unique design from Sarnoff Research Labs in Princeton, New Jersey. [9]
The company was founded in 1998 and is based in the Spirit of St. Louis Airport, Clayton, Missouri, United States. [9] [10] ImageAmerica builds high resolution cameras for aerial photographs. [2] The company provided high resolution black and white images of New Orleans following the events of Hurricane Katrina. [11] The company's products provide images for Google Maps and Google Earth. [3]
When the company was acquired by Google, the acquisition price was not disclosed. After the acquisition, the project manager of Google Maps and Earth said in a statement that Google was excited "about how ImageAmerica’s technology will contribute to [Google's] mapping services down the road." [3] He went on to say, "Since we're in the research and development phase right now it may be some time before you see any of this imagery in Google Maps or Earth." [5] In the same month, Google was on an acquisition-spree and had already acquired six other companies: Panoramio, PeakStream, Zenter, Feedburner, GrandCentral, and Postini. [4]
A digital elevation model (DEM) or digital surface model (DSM) is a 3D computer graphics representation of elevation data to represent terrain or overlaying objects, commonly of a planet, moon, or asteroid. A "global DEM" refers to a discrete global grid. DEMs are used often in geographic information systems (GIS), and are the most common basis for digitally produced relief maps. A digital terrain model (DTM) represents specifically the ground surface while DEM and DSM may represent tree top canopy or building roofs.
The National Geospatial-Intelligence Agency (NGA) is a combat support agency within the United States Department of Defense whose primary mission is collecting, analyzing, and distributing geospatial intelligence (GEOINT) in support of national security. Initially known as the National Imagery and Mapping Agency (NIMA) from 1996 to 2003, it is a member of the United States Intelligence Community.
Aerial photography is the taking of photographs from an aircraft or other airborne platforms. When taking motion pictures, it is also known as aerial videography.
Fairchild Camera and Instrument Corporation was a company founded by Sherman Fairchild. It was based on the East Coast of the United States, and provided research and development for flash photography equipment. The technology was primarily used for DOD spy satellites. The firm was later known for its manufacture of semiconductors.
DigitalGlobe was an American commercial vendor of space imagery and geospatial content, and operator of civilian remote sensing spacecraft. The company went public on the New York Stock Exchange on 14 May 2009, selling 14.7 million shares at US$19.00 each to raise US$279 million in capital. On 5 October 2017, Maxar Technologies completed its acquisition of DigitalGlobe.
NASA WorldWind is an open-source virtual globe. According to the website, "WorldWind is an open source virtual globe API. WorldWind allows developers to quickly and easily create interactive visualizations of 3D globe, map and geographical information. Organizations around the world use WorldWind to monitor weather patterns, visualize cities and terrain, track vehicle movement, analyze geospatial data and educate humanity about the Earth." It was first developed by NASA in 2003 for use on personal computers and then further developed in concert with the open source community since 2004. As of 2017, a web-based version of WorldWind is available online. An Android version is also available.
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Google Maps is a web mapping platform and consumer application offered by Google. It offers satellite imagery, aerial photography, street maps, 360° interactive panoramic views of streets, real-time traffic conditions, and route planning for traveling by foot, car, bike, air and public transportation. As of 2020, Google Maps was being used by over one billion people every month around the world.
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ECW is a proprietary wavelet compression image format used for aerial photography and satellite imagery. It was developed by Earth Resource Mapping, which is now owned by Intergraph, part of Hexagon AB. It is a lossy compression format for images.
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Sherman Mills Fairchild was an American businessman and investor who founded over 70 companies, including Fairchild Aviation, Fairchild Industries, and Fairchild Camera and Instrument. Fairchild made significant contributions to the aviation industry and was inducted into the National Aviation Hall of Fame in 1979. His Semiconductor Division of Fairchild Camera played a defining role in Silicon Valley. He held over 30 patents for products ranging from the silicon semiconductor to the 8-mm home sound motion-picture camera. Fairchild was responsible for inventing the first synchronized camera shutter and flash as well as developing technologies for aerial cameras that were later used on the Apollo Missions.
GeoEye Inc. was an American commercial satellite imagery company based in Herndon, Virginia. GeoEye was merged into the DigitalGlobe corporation on January 29, 2013.
Space Imaging Middle East LLC (SIME) is a regional affiliate of DigitalGlobe, the largest commercial remote sensing company in the world.
Google Street View is a technology featured in Google Maps and Google Earth that provides interactive panoramas from positions along many streets in the world. It was launched in 2007 in several cities in the United States, and has since expanded to include all of the country's major and minor cities, as well as the cities and rural areas of many other countries worldwide. Streets with Street View imagery available are shown as clickable blue lines on Google Maps.
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In Oceania, Google Street View is available in most parts of Australia and New Zealand.
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