## 1 Introduction
[8] researched selected precision parameters of components realized by additive manufacturing. They discussed the accuracy and uncertainty of parts produced with additive manufacturing processes. [PERSON] and [PERSON] [9] summarized the key metrology-based technical challenges that limit the wider use of metal-based additive manufacturing processes. There are significant technical hurdles, many of which requiring metrology-based solutions, that prevent the full exploitation of additive manufacturing today. Additionally, in many cases, existing standards can be used as the basis for AM-specific standards, either as currently written or with some minor adjustments. This already-existing base of standards will greatly accelerate the development of additive manufacturing-specific standards. The issue of comparing the dual combined approach used in the traditional coordinate measurement of surfaces by touch systems and computer tomography was elaborated by [PERSON] et al. [10]. This dual combined approach uses traditional surface coordinate measurements on exterior accessible surfaces, which is followed by internal lattice measurements. The results show a clear method and workflow for the combination of these technologies for a holistic dimensional inspection. The imaging of the surface textures of complex shapes and geometries with a variability in the internal structures of different materials can be achieved by various methods. The method's selection depends on the specific requirements of the application, the material type, and the desired quality. Computer-aided design (CAD) softwares provide a virtual environment for the design and visualization of complex geometries. Virtual reality (VR) and augmented reality (AR) offer possibilities for visualization and interaction with complex structures in a virtual environment. Moreover, 3D scanning captures the actual surface geometries of physical objects. High-resolution imaging and photography can capture surface textures and details with high precision. A computed tomography (CT) scan shows the internal structures. Microscopy and nanoscopy provide high-resolution imaging of surface textures and internal structures at the microscopic and nanoscopic levels for small-sized specimens. Scientific articles by various authors deal with the research of these imaging methods. [PERSON] et al. [11] identified the potential of 3D scanning for industry and its utility for reverse engineering, the design and measurement of complex curved surfaces, education, architecture, surveying, healthcare, quality monitoring, prototyping, and the development of industrial tools and equipment. These technologies are widely used in areas where high accuracy and a superior resolution are required, to verify that a physical object has been manufactured according to the accuracy specifications in production drawings. [PERSON] et al. [12] researched the use of X-ray computed tomography (XCT), identifying a prerequisite for volumetric dimensional measurements in the industrial verification of physical objects manufactured by additive technologies (AM). There are two primary requirements when measuring the porosity of manufactured components (AM). The first relates to the increased resolution needed for the detection of small pores to allow for greater accuracy and precision in pore measurement. The second concerns the correlation of porosity and pore distribution measurements with more cost-effective measurement techniques to reduce the verification costs. [PERSON] et al. [13], using newly developed X-ray micro-computed tomography (micro-CT) methods, implemented the testing and analysis of additively manufactured parts with an emphasis on accurate dimensional measurement and porosity analysis. MicroCT can be used not only for the high-quality, detailed analysis of individual components, but also for the cost-effective inspection of major defects using fast scans with minimal post-processing.