Integrated preservation is an important trend in the maintenance of cultural heritage, and borrowing value is the benchmark. Preserving the tangible and intangible value, counseling public participation and digital technology activation are all important tasks. In the process, mature digital tools are used for dating and assist to strengthen preservation work is an important key internationally at this stage.This research takes the reconstruction of the historical site program- Reconstruction of Qionglin’s Millennium Settlement History as an example to explore how to plan and individually introduce and integrate strategies for digital technology in each project.The results of the study found that the introduction of digital technology into the sub-projects accelerate efficiency but also the effectiveness of the program. At the same time, the results of the program can be integrated through pre-planning and placed on the geographic information system (GIS) platform, fully interactive and efficiently.

Cultural heritage (CH) preservation and management play vital roles in conserving valuable properties and facilitating relevant historical studies on a country. The advanced technologies developed for CH preservation and management in recent years have made CH digitalization and documentation easy and have generated tremendous amounts of data for a wide range of applications. However, a great focus remains on the large amount of CH data, particularly on CH semantic interoperability, because various standards or schemas are applied during data generation. To achieve 3D CH semantic interoperability, this study proposes and comprehensively discusses an ontology-based approach for 3D tangible CH that includes 3D models, metadata, and their restoration information in the entire life cycle of the building information model (BIM). A tangible cultural heritage ontology is developed based on a top-level ontology, namely, the CIDOC conceptual reference model (CRM), for heritage information, metadata, and restoration. Access is achieved by mapping from the designated heritage in the national cultural heritage database with DC-based metadata to CIDOC CRM and from an enriched Heritage BIM with restoration information encoded as industry foundation classes (IFC) ontology to CIDOC CRM. The proposed framework can successfully combine a 3D model and its enriched information and is available for 3D model semantic accessing and integration. We focus on the discussion of Taiwan's traditional Southern Fujian architecture.

Conserving and preserving the national heritage reflects important cultural stewardship and the application of ARCHES provides for robust international interoperability of this heritage. In recent years, Taiwan has promoted protection and management of historic architecture and cultural heritage, through completion of a series of databases and inquiry platforms for the cultural heritage. However, there remains a significant digital divide between domestic integrated digital data exchange performance and international standards. Hence, Taiwan is focusing on integrating multi-source digital data and database exchange services with complete ontologies and taxonomies in conjunction with the latest global developments. This study constructs ontological metadata for registration and designation of historical architecture. The ontology, based on the CIDOC CRM, is used to import the contents of the current national cultural heritage database in Taiwan to build the ontology model of registration and designation of historical architecture; and the results are displayed through the network platform. The results indicate that new interpretative data models can improve mutual exchange of information and attain the purpose of heritage educational promotion. The metadata structure is built by using the ontology model according to international standards. It provides a positive structure for conveying Taiwan cultural heritage throughout the world.

The application of digital technology in the preservation of cultural assets is an international common trend. It combines the acquisition and preservation of integrated data which is very practical for the demonstration of various analysis and diversification. In 2017, 19th General Assembly of the International Ruins and Monuments Council Conference held in India states that government have the responsibility to identify, evaluate, record all of heritage sites and raise awareness of their importance. Therefore, digital preservation technology should be made universal in researching digital asset preservation. This project is based on the concept of digitalized conservation technology development. In order to implement the preservation and management of cultural assets, 3D laser scanning and control survey were used to record Taiwan Qiong-Lin civil defense underground tunnel digitally. To achieve the preservation and development of future cultural assets, this project also includes 3D point cloud models for tiled digital topographic map, urban planning, etc.

In this study, the digitization projects of monuments and temples in Taiwan were conducted using photogrammetric technology along with 3D Laser Scanning Point Cloud Data to carry out accuracy assessment of photogrammetry and 3D laser scanning, and in addition, this study creates a standard operating procedure for the photogrammetry that can be used to map the cultural relic’s facade of traditional temples in Taiwan. Moreover, a special workshop was established in order to promote the rapid modeling method for the photogrammetric technology by means of Chinese language version of CIPA 3 × 3 rules that was officially introduced at CIPA’s 2015 Annual Meeting, so that this study can conduct the learning and educational programs to achieve the combination of cultural assets and public participation.

For international trends and activities pointing out, the conservational activation and adding values of cultural heritage are currently concerning issues in the world. The significant topics of universal values are integration, multiparticipation and resource sharing. This project has analyzed current necessary of management system of cultural heritage in Taiwan. Kinmen, a potential location for applying registration of World Heritage, is an example of system manipulation for 3 phases of cultural heritage lifecycle which are registration, restoration and maintenance management. The project also represents the laws of Taiwan cultural heritage and concepts of World Heritage on a platform by Metadata planning and G.I.S management.

Growth of globalization and development of new techniques have led conservation to a wider research field in the 21st century. From the perspective of value priority, digital techniques and disaster prevention are main issues in conservation. On the other hand, management in different fields is another important concept. How to integrate value priority and disaster prevention into digital techniques has become an important issue in the field of conservation. The research develops a standard operation procedure of disaster prevention and rescue for historic buildings and monuments from a value priority point of view. The case of Dihua Street is used for organization and training. Besides assessing significant movable and immovable cultural relics and buildings, the research marks their locations, routes and procedures of rescue, it also proposes a disaster factor analysis. According to this trend, this research provides an integrative working frame on digitization of management and disaster prevention for the monuments. The management indicators, metadata and the presentation with GIS are the key issues of this frame.

Monuments and historic buildings, is the cultural legacy of our ancestors, but also social and cultural development for the life experience of technology, customs and heritage. 3D laser scanner technology, not only can do non-contact measurement of high accuracy digital data, but also can save the complete 3D digital data files for future restoration and value-added application. In this study, the digitization process of the original point cloud was obtaining information by reverse engineering software Rapidform XOR, and then converted them to 3DS Max for additional editing and applications. Appropriate Maxscript. modeling program is developed to increase the editing efficiency of the designer.

Dihua Street, a celebrated historic district in Taiwan, was chosen as the subject of the current study. Through three-dimensional (3D) modeling, namely point clouds and reverse engineering, featured in 3D laser scanners, the researcher restored the appearance of cultural heritage and enhanced authenticity in historical preservation. Besides, on the basis of the Taiwan Cultural Heritage Conservation Law, the researcher planned the framework of a digital database and developed a safety monitoring system with a management platform for 3D digital data. As a result, the law serves as a base for applying digital preservation of historical sites in Taiwan as well as integrated management of historical rehabilitation.

Currently, the process of conservation by digitizing historic buildings is a key technology in cultural heritage preservation that needs further improvement. However, a comprehensive survey of projects of digital archives shows that traditional, time-consuming construction methods were adopted most, as in taking pictures or cartographing physical buildings through AutoCAD to construct digital data. This study adopted reverse engineering to explore digitalizing constructions and employed a fast and precise 3-D laser scanner to retrieve point cloud data and then import the data into Rapidform XOR2, an application used in reverse engineering, to process point cloud data and construct 3-D models. The results were then converted from 3-D models into 2-D pictures by parameterization software Pro/ENGINEER to provide designers precise and realistic dimensional data, which effectively reduced time in cartography and increased historic building dimension precision during digitalization. The foregoing data was documented and compared, and a digital value-added effect could be possible in the future.

Historical architecture, ancestors' important cultural assets, transmits conventional environment and skill experience in the society and cultural rogress. However, due to the long process of confirming, the limitation of budget and timing, the preservation of historical architecture are not efficiently executed preservation. Moreover, natural disaster, such as earthquake, fire and collapse, caused history architecture disappeared at one moment. 3D laser scanning technology is a new trend in the 21st century. With the development of 3D laser scanner, the data of 3-dimensional coordination could be conserved as historical architecture in a digital aspect for more complete preservation.

This study describes a process for digitizing 3D documentation with 3d laser scanner tools. The process of capturing 3D data is mainly for as-built environment in reconstruction and documentation of historical scenes. For retrieving the 3d shape of historical building, the workflow needs to be developed in terms of 3D data acquisition, 3D modeling, documentation and web-based representation. For practical demonstration, several cases present the reconstructed results and the application of virtual scene. These practical cases were applied the technique solution to approach digitizing tasks of preservation for cultural heritage, which could evoke more heritage preservation issues.

This project presents a digitizing process of 3D laser scanner for culture heritage. The experimental records are mainly for systematic 3D model reconstruction and digital archiving of historical scenes. The procedures of digital heritage are 3D data acquisition, 3D modelling and web-based representation which demonstrate the reconstructed results and the application of virtual scene.