Recovery of object positions and shape from photographs with overlapping views. Known or estimated camera geometry and matched image features constrain three-dimensional point positions. A metric reconstruction requires scale and a coordinate reference; image pixel size is not automatically the positional accuracy of the reconstructed surface. Stereo photogrammetry and structure-from-motion photogrammetry use related geometry with different acquisition and camera-estimation strategies.
Photogrammetry is a technique that involves capturing and interpreting photographic images to measure and analyze objects and landscapes in three dimensions. It uses photographs taken from different angles and positions to create accurate representations of the physical world, allowing for the extraction of spatial information. Key aspects of photogrammetry include: 1. **Data Acquisition**: Photogrammetry typically utilizes digital cameras, drones, or aerial platforms to capture images. The images should overlap to ensure accurate measurement.
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