## 1 Introduction  
Modern Cultural Heritage documentation involves interdisciplinary research teams from various fields. The three-dimensional documentation of both cultural heritage sites and artefacts has become a common task in archaeological and restoration processes [1]. This digital documentation process that makes use of modern scanning equipment and software enables the acquisition of precise digital models of both the archaeological sites and artefacts to define digital replicas. Three-dimensional scanning is frequently used for the documentation of Cultural Heritage (CH), as it is capable of defining accurate measurements compared to other digitization methods (photogrammetry, as an example) [2]. The accuracy evaluation of photogrammetry has been analyzed using a custom machine gauge [3] and a coordinate measuring machine (CMM). The trueness and precision of photogrammetry has been analyzed using CMM in other research domains, such as dental implants [4] and industrial applications [5]. Digital Cultural Heritage documentation involves a wide variety of technologies that provide heterogeneous data regarding file structure and file format. Because of this, depending on the final output of the 3D model, there are various standard file type conversion steps that are required to ensure that the output 3D dataset can be integrated within either digital applications such as virtual reality (VR), augmented reality (AR), mixed reality (MR), or computer-aided manufacturing processes (CAM). One of the most important challenges related to the preservation of cultural and historical heritage is associated with the rapid decay of exterior monuments due to environmental deterioration, as well as vandal attacks [6]. Unfortunately, in many areas around the world, archaeological heritage has been affected by both natural hazards and anthropic destruction. The negative impact of social non-involvement in the protection of archaeological sites has had an impact in multiple countries. Romanian archaeology did not benefit from a specific legislation from its beginning, and until January 2000, as presented by [PERSON], even though Romania has been a member of the European Convention concerning archaeological heritage (signed at La Valetta on 16 January 1992) ever since 1997, it was only in 2000 that the government enacted the first law concerning the protection of archaeological heritage. This had an impact regarding the prevention of archaeological treasure hunting, but as presented within this research article aimed at the promotion of the Dacian ornamental shields, various Dacian archaeological sites have been targeted by treasure hunters with metal detectors up until this period, as well as after 2000, in remote areas such as the Dacian Hillfort from Piatra Rosie [7]. Due to various degradation aspects previously presented, CH artefacts are frequently broken into fragments when they are discovered. The traditional manual reconstruction may induce additional damage to the CH fragmented artefacts; therefore, the use of computer-aided techniques for reassembly and digital reconstruction provides several advantages over traditional techniques [8]. The main advantage is represented by the output 3D models that can be used for a wide variety of applications, both digital, such as: VR [9], AR [10], and MR [11], but also regarding the development of tangible replicas using computer-aided manufacturing (CAM) and rapid prototyping (RP) techniques such as casting [12], additive manufacturing [13], laser synthetization, and laser cladding [2]. As presented by [PERSON] et al., in this context, the need to reconstruct damaged and stolen cultural heritage objects, and to gradually replace them with replicas represents one of the most important aspects on the agenda. This idea of replacing originals with copies is not new, and it causes an ambiguous attitude in society.