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IMAGE ACQUIRING METHOD AND IMAGE ACQUIRING DEVICE
PROBLEM TO BE SOLVED: To provide an image acquiring method and an image acquiring device, capable of calculating a photographing element (photographing position and photographing direction) for acquiring an orthographic projection image without artificially installing a feature point.SOLUTION: An image acquiring method comprises a laser irradiating step, an irradiation point coordinate calculating step, an image acquiring step, and a photographing element calculating step. The laser irradiating step irradiates an object with visible light laser (Step 40). The irradiation point coordinate calculating step calculates a three-dimensional coordinate of an irradiation point of visible light laser (Step 50). The image acquiring step acquires an image by photographing an object containing four irradiation points or more (Step 70). The photographing element calculating step calculates a photographing position and a photographing direction on the basis of a three-dimensional coordinate of an irradiation point included in the image and a plane position of the irradiation point on the image (Step 80).SELECTED DRAWING: Figure 4
【課題】特徴点を人為的に設置することなく、正射投影画像を得るための撮影要素（撮影位置及び撮影方向）を算出することができる、画像取得方法と画像取得装置を提供する。【解決手段】レーザー照射工程と、照射点座標算出工程、画像取得工程、撮影要素算出工程を備えた方法である。レーザー照射工程では、対象物に対して可視光レーザーを照射し（Ｓｔｅｐ４０）、照射点座標算出工程では、可視光レーザーの照射点の３次元座標を算出する（Ｓｔｅｐ５０）。また、画像取得工程では、４以上の照射点を含む対象物を撮影して画像を取得し（Ｓｔｅｐ７０）、撮影要素算出工程では、画像に含まれる照射点の３次元座標と、画像上における照射点の平面位置に基づいて撮影位置及び撮影方向を算出する（Ｓｔｅｐ８０）。【選択図】図４
IMAGE ACQUIRING METHOD AND IMAGE ACQUIRING DEVICE
PROBLEM TO BE SOLVED: To provide an image acquiring method and an image acquiring device, capable of calculating a photographing element (photographing position and photographing direction) for acquiring an orthographic projection image without artificially installing a feature point.SOLUTION: An image acquiring method comprises a laser irradiating step, an irradiation point coordinate calculating step, an image acquiring step, and a photographing element calculating step. The laser irradiating step irradiates an object with visible light laser (Step 40). The irradiation point coordinate calculating step calculates a three-dimensional coordinate of an irradiation point of visible light laser (Step 50). The image acquiring step acquires an image by photographing an object containing four irradiation points or more (Step 70). The photographing element calculating step calculates a photographing position and a photographing direction on the basis of a three-dimensional coordinate of an irradiation point included in the image and a plane position of the irradiation point on the image (Step 80).SELECTED DRAWING: Figure 4
【課題】特徴点を人為的に設置することなく、正射投影画像を得るための撮影要素（撮影位置及び撮影方向）を算出することができる、画像取得方法と画像取得装置を提供する。【解決手段】レーザー照射工程と、照射点座標算出工程、画像取得工程、撮影要素算出工程を備えた方法である。レーザー照射工程では、対象物に対して可視光レーザーを照射し（Ｓｔｅｐ４０）、照射点座標算出工程では、可視光レーザーの照射点の３次元座標を算出する（Ｓｔｅｐ５０）。また、画像取得工程では、４以上の照射点を含む対象物を撮影して画像を取得し（Ｓｔｅｐ７０）、撮影要素算出工程では、画像に含まれる照射点の３次元座標と、画像上における照射点の平面位置に基づいて撮影位置及び撮影方向を算出する（Ｓｔｅｐ８０）。【選択図】図４
IMAGE ACQUIRING METHOD AND IMAGE ACQUIRING DEVICE
画像取得方法、及び画像取得装置
TAKAHASHI GENKI (author) / KATO SATORU (author) / NAKAMURA KAZUHIRO (author)
2018-04-19
Patent
Electronic Resource
Japanese
IPC:
G01B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
,
Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen
/
E01D
BRIDGES
,
Brücken
/
G01C
Messen von Entfernungen, Höhen, Neigungen oder Richtungen
,
MEASURING DISTANCES, LEVELS OR BEARINGS
/
G03B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM
,
Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien
/
H04N
PICTORIAL COMMUNICATION, e.g. TELEVISION
,
Bildübertragung, z.B. Fernsehen
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