Precise three-dimensional measurement of the building element with high precision image processing

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Photogrammetry is easily available even in the construction sites where various materials and temporary equipment are scattered, because a digital camera is much more portable than the other measuring devices such as a total station or a 3D scanner.In order to utilize photogrammetry more highly in the A/E/C fields I improved measuring accuracy, illustrated error tendency, and concretely explained employment reliability. Furthermore I developed the system which cross-refers with construction information (ex. BIM models) and construction photographs.