Abstract
AbstractPhotogrammetry is the technology for obtaining 3D geometric information from photographs or images. This chapter describes the fundamental knowledge and latest advances in photogrammetry for 3D mapping in urban areas. First, the key fundamental techniques in photogrammetry for deriving 3D information from imagery are presented. Then, the latest advances in photogrammetry for 3D mapping in urban areas, including structure-from-motion (SfM), multi-view stereo (MVS), and integrated 3D mapping from multiple-source data, are described and discussed. Examples of using photogrammetry for 3D mapping and modeling in urban applications are presented. Finally, concluding remarks and future outlooks are addressed.
Highlights
Photogrammetry is the science and technology for obtaining reliable 3D geometric and physical information about objects and the environment from photographic images (ASPRS 1998)
Traditional photogrammetry has limited use for 3D mapping and modeling in urban areas (Qiao et al 2010; Ye and Wu 2018). This is mainly due to the fact that traditional photogrammetry usually captures near-nadir images by cameras mounted on aircraft, and image matching in urban areas is challenging
The state-of-the-art oblique photogrammetry systems collect aerial oblique images in urban areas with high redundancy, which significantly improves the automatic image matching in urban areas and provides information on building façades
Summary
Photogrammetry is the science and technology for obtaining reliable 3D geometric and physical information about objects and the environment from photographic images (ASPRS 1998). Photogrammetry allows 3D measurements of geometric information of objects (e.g., positions, orientations, shapes, and sizes) from photographs. Since the 1960s, the emerging of satellite and close-range imaging and measurements has facilitated the application of photogrammetry to various areas, such as 3D mapping and modeling, industrial inspection, architecture, robotics, civil engineering, and hazard monitoring. B. Wu integrated 3D mapping, have facilitated the development of photogrammetry towards a more automatic solution for 3D mapping and modeling, with better quality, even for challenging cases such as in urban areas. The latest advances in photogrammetry for 3D mapping in urban areas, including SfM, MVS, and integrated 3D mapping from multiple-source data, are described and discussed.
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