期刊名称:Archiwum Fotogrametrii, Kartografii i Teledetekcji
印刷版ISSN:2083-2214
出版年度:2006
卷号:16
语种:English
出版社:Main Board of Association of Polish Surveyors
摘要:Archaeology takes often advantage of the advanced measurement tools for registering the position,the shape and the character of the objects descended from the excavations. Close range photogrammetry methods can obtain the fastest and reliable results in this domain. This paper presents the experiences related to the reconstruction of the 3D surface model of the ancient amphor,based on photographs taken with the amateur digital camera. Different approaches have been applied with the use of a set of stereopairs. For the image correlation process,the natural texture of the object has been used. The optical projection of the pattern was not utilized. For 3D reconstruction of the amphor model,two photogrammetric packages were used;Orient/Orpheus and Z/I Imaging,for the model orientation and measurement. Three configurations of reference system in object space were employed. The first was based on a rotating flat circular shield,where signalized points were placed around the amphor symmetrically near the shield’s edge. The object stood on the shield’s plane. This approach produced a lot of difficulties connected with the stability of computation process and forcing aerial photogrammety applications to work with a close range task. The second approach assumed placement the amphor inside a reference three-dimensional frame with circular signalized points. This was very promising but there were still problems with nonaerial directions of reference coordinate system axes,and the large angle between the points’ signals and the fiducial plane in the camera. The third attitude,where the 3D frame was also placed around the object,but the Z axes led perpendicularly to the camera aim,was the most successful. All in all, the final 3D model was created based on this alignment. The only thing which was hard to arrange was connecting some surfaces taken from each stereopair into one set in one coordinate system. One of the main aims in this study was to initiate the automation of the technological process in obtaining 3D shapes of objects. There are many archaeological objects of such type and to measure and analyze them without improvement in this domain would be very difficult.
其他摘要:Archeologia korzysta często z zaawansowanych narzędzi pomiarowych do rekonstrukcji rozmieszczenia,kształtu i charakteru obiektów pozyskanych z wykopalisk. Fotogrametria bliskiego zasięgu prowadzi bardzo efektywnie do uzyskania szybkich i rzetelnych rezult