DeskTop Publishing Scanners
نویسنده
چکیده
Scanners have been used as input devices in photogrammetric and cartographic applications mainly for digitisation of aerial images and maps. This paper deals with the use and applicability of DeskTop Publishing (DTP) scanners for photogrammetric/ cartographic applications. The motivation of the paper is the investigation as to what extent low-priced DTP scanners, which are rapidly improving during the few last years, can be used for such applications. The paper will mainly concentrate on flatbed scanners with aim the scanning of films. However, many of the topics mentioned in the paper are also valid for drum scanners. The paper gives a review of recent technological developments with respect to these scanners, describes advantages and disadvantages, presents characteristics, tests and problems of such scanners, and investigations on their geometric and radiometric accuracy. Test patterns for calibration of such scanners and results using five different scanners will be presented.
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