Evolution and Stylistic Characteristics of Ancient Chinese Stone Carving Decoration LSTM-DL Approach with Image Visualization

In recent years, advancements in data analysis techniques and deep learning algorithms have revolutionized the field of art and cultural studies. Ancient Chinese stone carving decoration holds significant historical and cultural value, reflecting the artistic and stylistic evolution of different periods. This paper explored the Weighted Long Short-Term Memory Deep Learning (WLSTM – DL) evolution and stylistic characteristics of ancient Chinese stone carving decoration through the application of image visualization techniques combined with a Long Short-Term Memory (LSTM) time-series deep learning architecture. The WLSTM-DL model uses the optimized feature selection with the grasshopper optimization for the feature extraction and selection. By analyzing a comprehensive dataset of stone carving images from different periods, the WLSTM-DL model captures the temporal relationships and patterns in the evolution of stone carving decoration. The model utilizes LSTM, a specialized deep-learning architecture for time-series data, to uncover stylistic characteristics and identify significant changes over time. The findings of this study provide valuable insights into the evolution and stylistic development of ancient Chinese stone carving decoration. The application of image visualization techniques and the WLSTM-DL model showcase the potential of data analysis and deep learning in uncovering hidden narratives and understanding the intricate details of ancient artworks

Methodology of Reverse Engineering Implemented in the Process of Digitalization and Conservation of Wooden Carvings

The purpose of this paper is to present the benefits of reverse engineering when applied to cultural heritage i.e. digitalizing and duplicating an artwork in lack of original documentation, drawings, or computer models; Usage of different methods for 3D scanning, reverse engineering softwares with a smart combination of history-based CAD with 3D scan data processing, for preparing the obtained 3D model for future production use; Describing tools and machines for rapid prototyping, materials used and the feasibility of its completion; Set of tools that provide opportunities for new projects and innovations but are also of cultural and historical significance

Experiencing Cultural Heritage Through Gamification: Mardin orphanage

This paper presents early-stage research about the role of gamification in experiencing cultural heritage strongly within the sociological context, specifically focusing on the transformation of the old orphanage located in the historical city center of Mardin. The study acknowledges the significance of the old orphanage as an architectural heritage exemplar, built of natural Mardin stone, situated within a unique historical and archaeological urban environment. However, it recognizes the challenges of preserving the building's heritage value, which necessitate surpassing the superficial restoration methods applied to adapt it into a hotel. The primary motivation of this research is to develop a method for creating a navigable and interactive virtual replica of the orphanage, centering on the processes and outcomes of transferring its heritage value. To achieve this, the paper initially outlines the documentation and analysis procedures employed, utilizing photogrammetry to capture the past and current states of the orphanage. Subsequently, participants engage with a gamified and realistic digital replica of the orphanage, involving task-based interactions and scenario-based experiences. The paper concludes by presenting preliminary results concerning participant reactions to the initial virtual model, delivered through a VR device. By raising awareness about the significance of restoring and preserving historical heritage, this study aims to positively impact the domains of tourism, education, and conservation. Furthermore, it intends to shed light on future research opportunities in the field of digital cultural heritage.International Technological Universit

Reflectance Transformation Imaging (RTI) System for Ancient Documentary Artefacts

This tutorial summarises our uses of reflectance transformation imaging in archaeological contexts. It introduces the UK AHRC funded project reflectance Transformation Imaging for Anciant Documentary Artefacts and demonstrates imaging methodologies

3D survey of the Early-Middle Bronze Age Workshop Complex and cemetery area at Erimi-Laonin tou Porakou (Cyprus)

Kouris Valley Project is an archaeological research project held from 2007 by University of Florence and directed by Prof. A. M. Jasink, under the field direction of Dr. L. Bombardieri in the Kourion area (Limassol, Cyprus). During the 2010 field season the collaboration of GeCo (Geomatics and Communication for Cultural Heritage Laboratory, University of Florence) was requested with the aim at the laser scanner survey of Erimi-Laonin tou Porakou site area. The survey involved two areas, a workshop and a cemetery, as well as some small ceramic finds. Range maps was used for different aims: to make a full-scale replica of a tomb to exhibit at Limassol museum and for the documentation of the excavation of the workshop. This one is a rather extreme case study: most significant artifacts are shallow carvings into bedrock and could be confused with natural elements. In this case the aim was to get automatic and accurate drawings comparable with traditional ones. The paper reviews the expressive potential of drawings done using different techniques and softwares, each one with its assets and restrictions

Digital imaging techniques for recording and analysing prehistoric rock art panels in Galicia (NW Iberia)

Several works have highlighted the relevance of 3D modelling techniques for the study of rock art, especially in case of deteriorated state of preservation. This paper presents a methodological approach to accurate document two Bronze Age rock art panels in Galicia (Spain), using photogrammetry SfM. The main aim is to show the application of digital enhancement techniques which have allowed the accurate depiction of the motifs and the correction of previous calques, focusing on the application of the exaggerated shading as a novel analytical method

Characterization of Macro- and Micro-Geomorphology of Cave Channel from High-Resolution 3D Laser Scanning Survey: Case Study of Gomantong Cave in Sabah, Malaysia

Three-dimensional documentation of hypogene cave morphology is one of the major applications of laser scanning survey. This chapter presents applications of terrestrial laser scanning (TLS) survey for analyzing endogenic cave passage geomorphologic structure and morphometry using 3D meshing, high-resolution 3D texture modeling for geovisualization, and its potential for cave art documentation. To achieve this, multi-scale resolution 3D models were generated; one using the mesh model for macro-morphological analysis and the other with the full-resolution scan to produce high quality 3D texture model for identification of micro-morphological features. The mesh model of the cave makes it possible to analyze the general shape, distinguish phreatic tube from post-speleogenetic modified conduits and carry out morphometric measurements including the cave volume and channel surface area. The 3D texture model provides true to live visualization of the cave with exceptionally high level of accuracy and details that would be impossible to obtain with direct observation by visiting the site or from the mesh model. The model allows discerning different speleogenetic phases, karstification processes and micro-morphologies such as wall and ceiling seepage, hanging rocks, fractures, scallops, ceiling flush dome, pockets, bell-hole and avens. Also, the texture model permits identifying cave arts and engravings along the passage

Tirtha -- An Automated Platform to Crowdsource Images and Create 3D Models of Heritage Sites

Digital preservation of Cultural Heritage (CH) sites is crucial to protect them against damage from natural disasters or human activities. Creating 3D models of CH sites has become a popular method of digital preservation thanks to advancements in computer vision and photogrammetry. However, the process is time-consuming, expensive, and typically requires specialized equipment and expertise, posing challenges in resource-limited developing countries. Additionally, the lack of an open repository for 3D models hinders research and public engagement with their heritage. To address these issues, we propose Tirtha, a web platform for crowdsourcing images of CH sites and creating their 3D models. Tirtha utilizes state-of-the-art Structure from Motion (SfM) and Multi-View Stereo (MVS) techniques. It is modular, extensible and cost-effective, allowing for the incorporation of new techniques as photogrammetry advances. Tirtha is accessible through a web interface at https://tirtha.niser.ac.in and can be deployed on-premise or in a cloud environment. In our case studies, we demonstrate the pipeline's effectiveness by creating 3D models of temples in Odisha, India, using crowdsourced images. These models are available for viewing, interaction, and download on the Tirtha website. Our work aims to provide a dataset of crowdsourced images and 3D reconstructions for research in computer vision, heritage conservation, and related domains. Overall, Tirtha is a step towards democratizing digital preservation, primarily in resource-limited developing countries.Comment: Accepted at The 28th International ACM Conference on 3D Web Technology (Web3D 2023

Imaging Cultural Heritage at Different Scales: Part I, the Micro-Scale (Manufacts)

Applications of non-invasive sensing techniques to investigate the internal structure and surface of precious and delicate objects represent a very important and consolidated research field in the scientific domain of cultural heritage knowledge and conservation. The present article is the first of three reviews focused on contact and non-contact imaging techniques applied to surveying cultural heritage at micro- (i.e., manufacts), meso- (sites) and macro-scales (landscapes). The capability to infer variations in geometrical and physical properties across the inspected surfaces or volumes is the unifying factor of these techniques, allowing scientists to discover new historical sites or to image their spatial extent and material features at different scales, from landscape to artifact. This first part concentrates on the micro-scale, i.e., inspection, study and characterization of small objects (ancient papers, paintings, statues, archaeological findings, architectural elements, etc.) from surface to internal properties