Search Results (14)

This study examines how different filming techniques can enhance the quality of 3D reconstructions with a particular focus on their use in indoor crime scene investigations. Using Neural Radiance Fields (NeRF) and Gaussian Splatting, we explored how factors like camera orientation, filming speed, data layering, and scanning path affect the detail and clarity of 3D reconstructions. Through experiments in a mock crime scene apartment, we identified optimal filming methods that reduce noise and artifacts, delivering clearer and more accurate reconstructions. Filming in landscape mode, at a slower speed, with at least three layers and focused on key objects produced the most effective results. These insights provide valuable guidelines for professionals in forensics, architecture, and cultural heritage preservation, helping them capture realistic high-quality 3D representations. This study also highlights the potential for future research to expand on these findings by exploring other algorithms, camera parameters, and real-time adjustment techniques. Full article

This paper explores the influence of various camera settings on the quality of 3D reconstructions, particularly in indoor crime scene investigations. Utilizing Neural Radiance Fields (NeRF) and Gaussian Splatting for 3D reconstruction, we analyzed the impact of ISO, shutter speed, and aperture settings on the quality of the resulting 3D reconstructions. By conducting controlled experiments in a meeting room setup, we identified optimal settings that minimize noise and artifacts while maximizing detail and brightness. Our findings indicate that an ISO of 200, a shutter speed of 1/60 s, and an aperture of f/3.5 provide the best balance for high-quality 3D reconstructions. These settings are especially useful for forensic applications, architectural visualization, and cultural heritage preservation, offering practical guidelines for professionals in these fields. The study also highlights the potential for future research to expand on these findings by exploring other camera parameters and real-time adjustment techniques. Full article

Contemporary urban development places a critical emphasis on pedestrian environments, especially in historic cities like George Town, which is a UNESCO World Heritage Site in Malaysia. Although survey questionnaires effectively captured public perceptions of issues such as poor road connectivity, weak accessibility, crime and safety concerns in George Town, they fell short in providing a comprehensive understanding of the root causes. This study leverages space syntax theory to model and analyze George Town’s unique pedestrian landscape, aiming to identify strategies for improving pedestrian networks in historical urban landscapes. Space syntax theory, known for revealing structural issues within urban contexts, is applied after a thorough examination of George Town’s urban layout, climate, architectural features, and development policies. George Town employs an informal grid layout widely utilized in British colonial port cities to enhance overall efficiency. The predominant architectural form is the shophouse, which is characterized by a ground level designed for pedestrian movement known as the “five-foot way” and adapted to Malaysia’s climate. Various axis drawing methods for the unique five-foot way under different circumstances are considered. The George Town special area plan (SAP) emphasizing heritage preservation guides development policies, thus requiring an inclusive approach to pedestrian environments. This enhances the practical significance of the current study, with the eastern and northern coastal areas serving as crucial focal points for investigation. This approach results in a comprehensive spatial model that captures the essence of George Town’s pedestrian landscape. Evaluation using space syntax indicators such as connectivity, integration, intelligibility, and choice reveals issues like poor overall network connectivity, inadequate access to key attractions, suboptimal integration, concentrated pedestrian flows, and significant safety concerns, which are exacerbated by limited infrastructure on certain two-way roads and a lack of zebra crossings. The practical implications of this study include recommendations for enhancing pedestrian spaces along identified roads and strategically installing zebra-crossings. This research is significant for its focus on a historical city in a Southeast Asian developing country, deeply integrating local environmental characteristics and providing insights into urban planning and optimization, thereby serving as a reference for similar cities. Full article

This paper aims to analyze the role of natural heritage cataloging when criminal events challenge natural history museums. This study investigates the rhino horn thefts in Italian natural history museums from 2011 to 2015 to provide a comprehensive framework for these robberies while highlighting the weaknesses and strengths to prevent thefts and safeguard both rhino horns and natural history collections from future targeting. Full article

Heritage crimes can result in the significant loss of cultural relics and predicting them is crucial. To address the issues of inconsistent textual information format and the challenge of preventing and combating heritage crimes, this paper develops a system that extracts crime elements and predict heritage crime occurrences. The system comprises two deep-learning models. The first model, Bi-LSTM + CRF, is constructed to automatically extract crime elements and perform spatio-temporal analysis of crimes based on them. By integrating routine activity theory, social disorder theory, and practical field experience, the research reveals that holidays and other special days (SD) perform a critical role as influential factors in heritage crimes. Building upon these findings, the second model, LSTM + SD, is constructed to predict excavation-type heritage crimes. The results demonstrate that the model with the introduction of the holiday factor improves the RMSE and MAE by 6.4% and 47.8%, respectively, when compared to the original LSTM model. This paper presents research aimed at extracting crime elements and predicting excavation-type heritage crimes. With the ongoing expansion of data volume, the practical significance of the proposed system is poised to escalate. The results of this study are expected to provide decision-making support for heritage protection departments and public security authorities in preventing and combating crimes. Full article

Cultural heritage is a testimony of past human activity, and, as such, cultural objects exhibit great variety in their nature, size, and complexity, from small artefacts and museum items to cultural landscapes, and from historic buildings and ancient monuments to city centers and archaeological sites. Cultural heritage around the globe suffers from wars, natural disasters, and human negligence. More specifically, cultural goods and artefacts are put at risk through several anthropogenic actions: Anthropogenic threats take various dimensions, ranging from theft from museums, private collections, and religious buildings, smuggling of and illicit trade in cultural goods, the irremediable looting and demolition of archaeological sites by clandestine excavators, or simply neglect of heritage sites. Illicit trading has expanded dramatically recently, especially in areas affected by armed conflicts and natural disasters, either aiming at destroying collective memory and dismembering people’s identity or mostly motivated by the pursuit of profit. Moreover, the illicit trafficking of cultural goods contributes to the funding of terrorism, organized crime, and money laundering. The mission of ENIGMA, a EUR 4 million EU funded project, is to achieve excellence in the protection of cultural goods and artefacts from man-made threats by contributing to their identification, traceability, and provenance research, as well as by safeguarding and monitoring endangered heritage sites. ENIGMA objectives are designed to help the involved stakeholders better respond to this complex and multi-dimensional problem and leverage active collaboration by fostering and enabling interlinking of databases, and evidence-based deployment of preventative measures. Full article

Tangible cultural heritage is vulnerable to various risks, particularly those stemming from criminal activity. Through analyzing the distribution and flow of crime risks from a spatial perspective based on quantitative methods, risks can be better managed to contribute to the protection of cultural heritage. This paper explores and summarizes the spatial characteristics of crime risks from 2011 to 2019 in China. Firstly, the average nearest neighbor (ANN) and the Jenks Natural Breaks Classification method showed that the national key protected heritage sites (NPS) and crime risks exhibit clustering features in space, and most of the NPS were located in the middle and lower reaches of the Yangtze River and the Yellow River. Secondly, the economy has no impact on crime risks in the spatial statistical analysis. However, the population density, distribution of NPS, and tourism development influenced specific types of crime risks. Finally, Global Moran’s I was used to examine the strong sensitivity between crime risks and cultural relics protection policies. The quantitative results of this study can be applied to improve strategies for crime risk prevention and the effectiveness of heritage security policy formulation. Full article

The industrial legacy of the Soviet period in Lithuania has become an object of social tension. Even though the industrial heritage of the Soviet period is not directly related to the crimes of the occupying authorities, the conversion of industrial objects in the historical parts of cities or of buildings with symbolic significance is contentious among members of the public. For this reason, the conversion of industrial areas in Lithuania has become not only an economic challenge, but also a problem of adaptating to society’s needs, changing society’s attitude toward this type of heritage, and organically integrating that heritage into the city structure. The “Radio City” conversion project is being developed in the context of this social tension but has become an example of adaptation in harmony with the architectural heritage that occupies a dominant position on the block, which is located in one of the historically formed residential districts of Kaunas city. Full article

Following Max Liboiron’s claim that pollution is colonialism, the anti-colonial maritime archaeologist’s role in the Anthropocene might be to reframe research questions, so that focus is directed toward interactions between marine and maritime, and that the colonial ‘resurrectionist’ approach that has dominated nautical archaeology ought to be reconsidered altogether. This normative statement is put to the test with a 4000-year-old waterlogged dugout canoe that was illegally excavated from the Cooper River in South Carolina, USA. Upon retrieval, the affected tribal entities were brought into consultation with archaeologists and conservators to help decide how to proceed with the canoe’s remains. Tribal representatives reached a consensus to preserve the canoe with PEG and display it in a public museum. This procedure follows the resurrectionist model typical of maritime archaeology in the West, now the dominant protocol globally, where the scholar acts as savior by lifting entire wrecks from watery graves and promising to grant them immortality in utopian museum spaces. However, this immortalizing procedure is at odds with some Indigenous values, voiced by tribal representatives, which embrace life cycles and distributed agency. In the end, the desire to preserve the canoe as a perpetual symbol of intertribal unity dominated concerns surrounding the canoe’s own life, spirit, and autonomy, and that plasticizing it would permanently alter its substance and essence. We argue that the object of the canoe has become subservient to its postcolonial symbolism of Indigenous unity, resilience, and resistance. Further, by subscribing to the resurrectionist model of maritime archaeology, the immortalized canoe now bears the irony of colonial metaphor, as an unintended consequence of its preservation. We echo Audre Lorde’s famous sentiment by wondering if an anticolonial maritime archaeology can ever hope to dismantle the master’s boat using the master’s tools. The conclusions reached here have implications for other maritime and museum contexts too, including the highly publicized case of the wrecked 1859–1860 slave ship, Clotilda. Full article

The economic assessment of damage to movable and immovable objects considered part of archaeological heritage is a matter of increasing interest, both at the legal level and in terms of government management. The primary reason for this interest is the urgent need to agree on a sound and reliable approach to economically quantifying not so much the cultural value of the damage caused as the civil liability for having caused it in those cases in which it was produced by a harmful human act. Assessment methods require a broad consensus to be considered reliable. The lack of consideration given to this matter has only made the absence of such a consensus more acute. This paper offers a mainly Spanish case-based analysis of the most common valuation methods for both movable and immovable archaeological objects. With regard to movable objects, it examines the problems involved in both the exclusive use of an object’s market price as its cultural value and the lack of justification for the chosen valuation system, concluding that current methods are insufficient. This insufficiency, also perceived by the authors of the expert reports used in the analyzed proceedings, has been dealt with arbitrarily. With regard to immovable object, it concludes that the systems currently used to assess the damage to sites are likewise insufficient, despite having been legally acknowledged in some cases. This paper will thus examine the methods used in environmental assessments—whose parallels with archaeological heritage are clear—and proposes that they be adapted for this purpose. Full article

This methodological study assesses the potential for automatically generated data, netnographic data and market data on metal-detecting to advance cultural property criminology. The method comprises the analysis of open sources that have been identified through multilingual searches of Google Scholar, Google Web and Facebook. Results show significant differences between digital data and market data. These demonstrate the limits of restricted quantitative analysis of online forums and the limits of extrapolation of market data with “culture-bound” measures. Regarding the validity of potential quantitative methods, social networks as well as online forums are used differently in different territories. Restricted quantitative analysis, and its foundational assumption of a constant relationship between the size of the largest online forum and the size of the metal-detecting population, are unsound. It is necessary to conduct extensive quantitative analysis, then to make tentative “least worst” estimates. As demonstrated in the sample territories, extensive analyses may provide empirical data, which revise established estimates. In this sample, they corroborate the detecting community’s own perception that they are ‘beat[ing these sites] to death’. Full article

This paper attempts to meditate upon the transpacific imagination of cyberpunk by reconstructing its literary and cultural heritage. Since the publication of William Gibson’s multiple award winning first novel, Neuromancer (1984), the concept of cyberpunk has been globally popularized and disseminated not only in the field of literature but also in culture. However, we should not forget that cyberpunk is derived not only from the cutting edge of technology but also from “Lo Tek” sensibility cultivated in the Gibsonian picturesque ruins or dark cities such as a major extraterritorial zone in Hong Kong “Kowloon Walled City” nicknamed as “a den of iniquity”, “The Casba of the East”, and “a hotbed of crime”, which was destroyed in 1993, but whose images captured by Ryuji Miyamoto inspired Gibson to come up with the spectacle of the destroyed San Francisco Bay Bridge to be stormed by ex-hippies and former homeless. From this perspective, this chapter focuses on the works ranging from Katsuhiro Otomo’s directed anime Akira (1988), Gibson’s Bridge Trilogy (Virtual Light (1993), Idoru (1996), and All Tomorrow’s Parties (1998)) in the 1990s through Project Itoh’s post-cyberpunk masterpiece Genocidal Organ (2007). Full article

The 3D acquisition of object structures has become a common technique in many fields of work, e.g., industrial quality management, cultural heritage or crime scene documentation. The requirements on the measuring devices are versatile, because spacious scenes have to be imaged with a high level of detail for selected objects. Thus, the used measuring systems are expensive and require an experienced operator. With the rise of low-cost 3D imaging systems, their integration into the digital documentation process is possible. However, common low-cost sensors have the limitation of a trade-off between range and accuracy, providing either a low resolution of single objects or a limited imaging field. Therefore, the use of multiple sensors is desirable. We show the combined use of two low-cost sensors, the Microsoft Kinect and the David laserscanning system, to achieve low-resolved scans of the whole scene and a high level of detail for selected objects, respectively. Afterwards, the high-resolved David objects are automatically assigned to their corresponding Kinect object by the use of surface feature histograms and SVM-classification. The corresponding objects are fitted using an ICP-implementation to produce a multi-resolution map. The applicability is shown for a fictional crime scene and the reconstruction of a ballistic trajectory. Full article

3D imaging sensors for the acquisition of three dimensional (3D) shapes have created, in recent years, a considerable degree of interest for a number of applications. The miniaturization and integration of the optical and electronic components used to build them have played a crucial role in the achievement of compactness, robustness and flexibility of the sensors. Today, several 3D sensors are available on the market, even in combination with other sensors in a “sensor fusion” approach. An importance equal to that of physical miniaturization has the portability of the measurements, via suitable interfaces, into software environments designed for their elaboration, e.g., CAD-CAM systems, virtual renders, and rapid prototyping tools. In this paper, following an overview of the state-of-art of 3D imaging sensors, a number of significant examples of their use are presented, with particular reference to industry, heritage, medicine, and criminal investigation applications. Full article