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Direct geo-referencing system uses the technology of remote sensing to quickly grasp images, GPS tracks, and camera\udposition. These data allows the construction of large volumes of images with geographic coordinates. So that users can be measured\uddirectly on the images.\ud  \udIn order to properly calculate positioning, all the sensor signals must be synchronized. Traditional aerial photography use\udPosition and Orientation System (POS) to integrate image, coordinates and camera position. However, it is very expensive. And\udusers could not use the result immediately because the position information does not embed into image. To considerations of\udeconomy and efficiency, this study aims to develop a direct geo-referencing system based on open source software and hardware\udplatform.\ud  \udAfter using Arduino microcontroller board to integrate the signals, we then can calculate positioning with open source\udsoftware OpenCV. In the end, we use open source panorama browser, panini, and integrate all these to open source GIS software,\udQuantum GIS. A wholesome collection of data – a data processing system could be constructed

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

Develop Direct Geo-referencing System Based on Open Source Software and Hardware Platform