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11.
蔡国扬 《中山大学学报论丛》1996,(6)
ＧＰＳ是一种以空间技术为基础的无线电导航系统，它的一个重要应用是自动多目标跟踪系统通过电子地图显示系统，实时监视目标位置及运动轨迹．地图的数字化方案对目标跟踪的准确性起着重要作用，对提高系统的综合性能也有重要意义．讨论适用于ＧＰＳ系统的地球平面投影模型，并提出一个可实施的数字化方案． 相似文献
12.
Christine Yeats & Alan Ventress 《档案与原稿》2013,41(3):217-222
The need for all archives to move from the paper based to the digital world is very apparent. However, governments and funding entities are unwilling to invest in the back capture of archival materials. State Records NSW overcame this impasse by entering into commercial agreements with 3rd party providers of genealogical data. This article outlines some of the reasons for entering into such agreements and the positive outcomes for State Records NSW and users of digital archival material. 相似文献
13.
Julie McIntyre 《档案与原稿》2016,44(1):2-13
Digitised versions of archival fonds with micro or regional significance daily join mass digitisation projects of books and documents in the global digital space. For historians, the exponential expansion of searchable digital archival material has required the revision of traditional research methods. The digital age has also shifted disciplinary boundaries such as the distinction between historian and archivist. This article concerns a micro digitisation involving collaboration between historian and archivist, not in archive access as is usually the case, but in archive creation. The experience of this collaboration is generalisable to other micro-scale uploads of scanned material enabled by digital technologies. This article is a case study of this experience. It uses autoethnography to explore the practicalities and ethical processes of decision-making to create a new digital archive of wine history during the pilot stage of an Australian Research Council Industry Linkage Grant. The decision-making process that transformed a historian as traditional archive end-user to archive creator highlights the challenges for both professions in the decision to digitise, the implications for expenditure of public funds and questions of digitisation and environmental sustainability. 相似文献
14.
Milan Grba 《Slavic & East European Information Resources》2017,18(3-4):152-164
This article surveys a sample of sources of the information about Romania available to British readers in nineteenth century British newspapers and periodicals. It traces first contacts between the Romanian lands and Britain after the union of the principalities of Wallachia and Moldavia in 1859, then after their independence from the Ottoman Empire. The article highlights an increased Romanian interest in British periodicals, which reported and reviewed Romanian literature and scholarship. The article concludes that nineteenth century British newspapers and periodicals offer a great variety and wealth of new material previously unavailable or unknown to researchers. It also states that only a portion of a large quantity of this material has been indexed and is therefore available via the bibliographic sources mentioned in the article. The author argues for the need of a new and updated British-Romanian bibliography, which can draw on new online resources offering access to thousands of new newspapers and periodical records. 相似文献
15.
This article discusses producer practices and the reasons why they engage their audience in the production process. In a digitised media context, audiences have become more visible, mainly through social media, and have more means to participate. Our research deconstructs the production process of a particular television programme by means of the “hierarchy of influences” model, which separates micro and macro levels that influence production. It draws on in-depth interviews with all editors of Flemish current affairs programme De Afspraak (The Appointment) and on a three-month participatory observation. We conclude that immersive ways of engaging the audience are applied in our specific case. More broadly, we argue that although practices change, pre-existing norms and values about the television audience remain central to how producers engage their audience through digital and social media. 相似文献
16.
《Journal of Cultural Heritage》2014,15(6):670-678
Accurate three-dimensional representations of cultural heritage sites are highly valuable for scientific study, conservation, and educational purposes. In addition to their use for archival purposes, 3D models enable efficient and precise measurement of relevant natural and architectural features. Many cultural heritage sites are large and complex, consisting of multiple structures spatially distributed over tens of thousands of square metres. The process of effectively digitising such geometrically complex locations requires measurements to be acquired from a variety of viewpoints. While several technologies exist for capturing the 3D structure of objects and environments, none are ideally suited to complex, large-scale sites, mainly due to their limited coverage or acquisition efficiency. We explore the use of a recently developed handheld mobile mapping system called Zebedee in cultural heritage applications. The Zebedee system is capable of efficiently mapping an environment in three dimensions by continually acquiring data as an operator holding the device traverses through the site. The system was deployed at the former Peel Island Lazaret, a culturally significant site in Queensland, Australia, consisting of dozens of buildings of various sizes spread across an area of approximately 400 × 250 m. With the Zebedee system, the site was scanned in half a day, and a detailed 3D point cloud model (with over 520 million points) was generated from the 3.6 hours of acquired data in 2.6 hours. We present results demonstrating that Zebedee was able to accurately capture both site context and building detail comparable in accuracy to manual measurement techniques, and at a greatly increased level of efficiency and scope. The scan allowed us to record derelict buildings that previously could not be measured because of the scale and complexity of the site. The resulting 3D model captures both interior and exterior features of buildings, including structure, materials, and the contents of rooms. 相似文献