Evaluating Software Tools to Orthorectify Archival Aerial Photographs

IF 0.3 Q4 INFORMATION SCIENCE & LIBRARY SCIENCE
N. Piekielek, Grace Brittany Waltemate, K. Schuckman
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引用次数: 0

Abstract

Abstract Archival aerial photographs are among the most common, voluminous, and frequently used collections in map and geography libraries because of the unique and important spatial information that they contain. They are, however, an underutilized resource because they are challenging to work with and due to misconceptions about their quality. Therefore, developing efficient workflows to convert archival aerial photographs into research-quality digital spatial data is an important next step in making them accessible to a broad range of potential users. The present study tested three software to georeference, orthorectify, and mosaic 15 digitized archival photographs. Using positional accuracy and aesthetics of output mosaics as measures of software performance, all three completed the task impressively well. Output image spatial resolution and positional accuracy were found to be comparable to common public-domain contemporary aerial photography datasets like those produced by the National Agricultural Imagery Program. We also assessed software ease of use by geospatial professionals who were not trained photogrammetrists and found all three to be accessible with care and training resources. The software tools to efficiently convert archival aerial photographs into research-quality digital spatial data have finally matured to the point where collection managers can reasonably consider collection scale conversion projects.
评估软件工具对档案航空照片进行正校正
摘要档案航空照片是地图和地理图书馆中最常见、数量最多、使用最频繁的馆藏之一,因为它们包含了独特而重要的空间信息。然而,它们是一种未充分利用的资源,因为它们具有挑战性,并且由于对其质量的误解。因此,开发有效的工作流程,将存档的航空照片转换为研究质量的数字空间数据,是使广泛的潜在用户可以访问这些照片的重要下一步。本研究测试了三种软件对15个数字化档案照片进行地理参考、正校正和马赛克。使用位置准确性和输出马赛克的美观性作为软件性能的度量,这三个人都完成了令人印象深刻的任务。研究发现,输出图像的空间分辨率和位置精度可与国家农业图像计划(National Agricultural Imagery Program)制作的当代公共航空摄影数据集相媲美。我们还评估了未受过摄影测量师培训的地理空间专业人员对软件的易用性,发现这三种软件都可以通过谨慎和培训资源进行访问。有效地将档案航空照片转换为研究质量的数字空间数据的软件工具终于成熟,馆藏管理者可以合理地考虑馆藏规模转换项目。
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来源期刊
Journal of Map & Geography Libraries
Journal of Map & Geography Libraries INFORMATION SCIENCE & LIBRARY SCIENCE-
CiteScore
0.60
自引率
83.30%
发文量
12
期刊介绍: The Journal of Map & Geography Libraries is a multidisciplinary publication that covers international research and information on the production, procurement, processing, and utilization of geographic and cartographic materials and geospatial information. Papers submitted undergo a rigorous peer-review process by professors, researchers, and practicing librarians with a passion for geography, cartographic materials, and the mapping and spatial sciences. The journal accepts original theory-based, case study, and practical papers that substantially advance an understanding of the mapping sciences in all of its forms to support users of map and geospatial collections, archives, and similar institutions.
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