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Metody fotogrametrii cyfrowej i skanowania laserowego w inwentaryzacji zabytków

Boroń A., Rzonca A.

Roczniki Geomatyki

2007

T. 5, z. 8

129-140

This paper describes the current level of photogrammetric as well as laser scanning technologies used for historic monuments documentation. The digital photogrammetry creates new possibilities at all stages of documentation process: measurement, presentation and storage. Digital recording of common products including: frontal views, horizontal and vertical cross-sections and photomaps offers wider possibilities of use compared to analogue counterparts. Digital technology expanded documentation products choice, now it is possible to develop 3D models of real world object. Besides, intermediate products in the form of oriented digital stereopairs can be made. Digital recording of images allows the use of passive object documentation (it includes only photographs with measured control points). Along with progress of photogrammetric documentation, there is hardware and software development. Improved density of CCD matrices, and loseless, above 8bit image formats brings about increasing usage of digital cameras. There is also significant development of photogrametric digital stations Laser scanning is the most up-to-date technology used in historical monuments documentation. It is based on short interval measurements with the use of laser scanners. Measurement yields dense cloud of points describing the object. Above all, laser scanner can record radiometric information (brightness or colour) in addition to spatial localization. It can be used to produce wide range of products.