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What is Photogrammetry?Photogrammetry is the measurement of features or objects on aerial imagery by recreating a stereo view (3D perception) using specialist instruments and/or software. Softcopy Photogrammetry uses scanned aerial images or satellite imagery and specialist software to perform photogrammetric measurements on a computer monitor with the aid of stereo glasses. The advantage of softcopy over conventional photogrammetry is that measurements can be made directly over the image, thus reducing mapping and editing time and improving on mapping precision. Using softcopy technology, stereo imagery and mapping is digital and cohesive which means that Digital Terrain Models (DTMs) can be produced rapidly and accurately. Softcopy PhotogrammetrySoftware Schlencker Mapping's softcopy software supports full photogrammetric production from triangulation and adjustment to final symbolised map and orthophoto output. It allows the creation of digital maps and orthophotos from aerial or satellite images. The system works in stereo mode with stereoscopic software and works in mono/mono+ mode without any additional hardware. Hardware The photogrammetric workstations are based on a standard Intel-compatible computer working on Windows 10. Users can move the floating mark with a classic handwheels/footdisk combination and/or with the mouse. Stereo glasses are used for observation. One micron encoders and 3D capability digitise with subpixel accuracy. |
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