期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN:2194-9042
电子版ISSN:2194-9050
出版年度:2008
卷号:XXXVII Part B4
页码:1865-1870
出版社:Copernicus Publications
摘要:Since the first introduction of large format digital frame cameras at the ISPRS2000 conference, these systems have matured and are now widely used in production, by and by replacing film cameras. The advantages of these digital cameras range from an additional near infrared channel, higher bit depth, absence of grain in the image, higher forward overlap without additional cost, to a completely digital workflow. At the same time large format digital frame cameras have been advertised as having the same, well- known geometric characteristics as their predecessors, making their data familiar and easy to work with in an existing production environment. While this of course is true, both data producer and end user or customers are learning the implications for the final product or delivery as well as for the planning, acquisition and production stages. The paper looks at these aspects during planning, acquisition, and production within the context of generating final products such as orthoimagery and also digital elevation model data. The analysis is developed from the perspective of a private sector production company, and is based on two years of experience in a production environment with tens of th ousands of images taken with the UltraCamD and UltraCamX complemented by almost 60 years of experience with film imagery. Project sizes range from 300 to over 10,000 images. These developments are resulting in an evolution of the workflow, leading to tighter system integration and increased efficiencies