Abbreviation of Global Positioning System. In Japanese, it is called "Global Positioning System". It receives signals (time, orbit information) from multiple GPS satellites in orbit around the earth, calculates the time difference and the speed of arrival of the radio waves, and determines the distance from the satellite, and based on that, determines the latitude and longitude. Originally launched by the United States for military purposes, it is also used for some civilian purposes. It is generally known for its use in car navigation systems, but it is also used in cameras, such as "LAND MASTER", a film camera with a built-in GPS receiver, released in 1996 (Heisei 8), which exposed the position and direction as text information on the film. Since then, there has been little progress in the combination of GPS and cameras, but GPS is attracting attention again due to the digitalization of cameras and the spread of online map services such as Google Maps. Sony was one of the first to commercialize a personal GPS receiver, and the compact digital camera Nikon COOLPIX P6000 (photo on the right), announced on August 7, 2008, is equipped with a GPS unit and can add location information at the time of shooting to the image. Source: CameramanWeb Cameraman Photo Terminology Dictionary Information |
Global Positioning System の略。日本語では、「全地球測位システム」という。地球上の周回軌道にある複数のGPS衛星からの信号(時刻、軌道情報)を受け取り、その時刻差と電波の到達速度を計算することで、衛星からの距離を割り出し、それをもとに緯度・経度を特定する。もともと軍事用にアメリカが衛星を打ち上げたものを、一部民生用にも利用している。自動車のカーナビゲーションシステムへの採用で一般的に知られているが、カメラでも1996(平成8)年にコニカが 「LAND MASTER」 というGPS受信機内蔵フィルムカメラを発売していて、撮影フィルムに位置と方向が文字情報として露光された。 以後、GPSとカメラの組み合わせにはあまり進展が見られなかったが、カメラのデジタル化とGoogle Maps などのオンライン地図サービスの普及により、ふたたびGPSが注目されている。 ソニーがいち早くパーソナルGPS受信機を製品化したほか、平成20年8月7日発表のコンパクトデジタルカメラ、ニコン COOLPIX P6000 (右写真) はGPSユニットを搭載し、撮影時の位置情報を画像に付加できる。
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