使用摄影测量法调查Côa山谷中铁器时代岩石艺术图案:Vermelhosa rock 3案例研究(Vila Nova de Foz Côa,葡萄牙)

IF 1.6 0 ARCHAEOLOGY Virtual Archaeology Review Pub Date : 2023-11-06 DOI:10.4995/var.2024.19725
Natália Botica, Luís Luís, Paulo Bernardes
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引用次数: 0

摘要

Côa山谷自1998年被列为世界遗产,展示了1200多个露天雕刻岩石面板。Côa山谷考古公园精心记录了这些岩石艺术图案,采用各种技术,包括在岩石上直接追踪过程,使用自然和人工照明。然而,这项高强度的工作要求很高,特别是考虑到许多岩石不容易接近。在“开放获取岩石艺术库”(RARAA)项目的背景下,本文提出了一种具有岩石艺术图案的岩石三维(3D)调查方法,以及随后通过摄影测量完成的3D模型的正射影像的生产。这些正射影像是矢量绘制图案的基础。值得注意的是,在这些记录中捕获的细节水平表明,大多数图案是可见的,可以通过正射影像准确地表示。这大大减少了实地调查所需的时间。然而,在某些情况下,面板的特定小区域受到具有挑战性的照明条件的影响,仍然需要进一步的现场工作,类似于直接跟踪过程。此外,本研究还介绍了一个整合矢量图形和图案特征数据的信息系统;这支持了该领域的加强研究,并促进了在新的解释或集成到未来项目中的潜在重用的改进开放访问。通过创建非常详细的3D模型,作者补充了表面的二维绘图,并确保了岩石和相关图像的数字保存。这些记录作为非常详细的数字替代品,有助于对岩石和图案的监测工作;它们还保证了未来研究和分析的宝贵资源的可用性,即使发生了自然或故意的变化。
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Use of photogrammetry to survey Iron Age rock art motifs in the Côa Valley: the Vermelhosa Rock 3 case study (Vila Nova de Foz Côa, Portugal)
The Côa Valley, listed as a World Heritage site since 1998, presents over 1200 open-air engraved rock panels. TheArchaeological Park of the Côa Valley has meticulously documented these rock art motifs, employing various techniques including direct tracing processes on the rocks, using both natural and artificial lighting. However, this intensive work is highly demanding, especially considering that many of the rocks are not easily accessible. In the context of the "Open Access Rock Art Repository" (RARAA) project, this paper presents a methodology for the three-dimensional (3D) survey of rocks with rock art motifs, as well as the subsequent production of orthophotos from the resulting 3D models, accomplished through photogrammetry. These orthophotos serve as the foundation for the vector drawing of the motifs. Remarkably, the level of detail captured in these records has shown that most of the motifs are visible and can be accurately represented through the orthophotos. This has significantly reduced the time required for field surveys. However, in certain cases where specific small areas of the panel are affected by challenging lighting conditions, further fieldwork is still necessary, analogous to the direct tracing process. Additionally, this study introduces an information system designed to integrate the vector graphics and the motifs characterisation data; this supports enhanced research in the area and promotes improved open access for potential reuse in new interpretations or integration into future projects. By creating highly detailed 3D models, the authors complement the two-dimensional drawings of the surfaces and ensure the digital preservation of both the rocks and the associated iconography. These records serve as highly detailed digital surrogates that facilitate the monitoring efforts of the rocks and motifs; they also guarantee the availability of valuable resources for future research and analysis, even if natural or deliberate changes occur.
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来源期刊
CiteScore
5.20
自引率
21.70%
发文量
19
审稿时长
20 weeks
期刊介绍: Virtual Archaeology Review (VAR) aims the publication of original papers, interdisciplinary reviews and essays on the new discipline of virtual archaeology, which is continuously evolving and currently on its way to achieve scientific consolidation. In fact, Virtual Archaeology deals with the digital representation of historical heritage objects, buildings and landscapes through 3D acquisition, digital recording and interactive and immersive tools for analysis, interpretation, dissemination and communication purposes by means of multidimensional geometric properties and visual computational modelling. VAR will publish full-length original papers which reflect both current research and practice throughout the world, in order to contribute to the advancement of the new field of virtual archaeology, ranging from new ways of digital recording and documentation, advanced reconstruction and 3D modelling up to cyber-archaeology, virtual exhibitions and serious gaming. Thus acceptable material may emerge from interesting applications as well as from original developments or research. OBJECTIVES: - OFFER researchers working in the field of virtual archaeology and cultural heritage an appropriate editorial frame to publish state-of-the-art research works, as well as theoretical and methodological contributions. - GATHER virtual archaeology progresses achieved as a new international scientific discipline. - ENCOURAGE the publication of the latest, state-of-the-art, significant research and meaningful applications in the field of virtual archaeology. - ENHANCE international connections in the field of virtual archaeology and cultural heritage.
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