Kapitany Kristof

Budapest University of Technology and Economics · Department of Photogrammetry and Geoinformatics

Computed tomography (CT) is an excellent tool to solve certain engineering problems connected to material science (such as sulfate swelling, internal degradation due to freezing, and alkali silicate swelling) and to understand specific processes (frost peeling, acid action). Albeit borne and mostly used in the medical domain, CT is increasingly use...

Current limitations of 3D concrete printing primarily stem from the early-age mechanical properties of the material used. Beyond spatial geometry and printing speed, the characteristic parameters evolving in time such as Young's modulus and cohesion exert a predominant impact on the stability of freshly printed elements. This study employs time-dep...

Artificial Intelligence (AI), specifically machine learning (ML) and deep learning (DL), is causing a paradigm shift in coding practices and software solutions across diverse fields. This study focuses on harnessing the potential of ML/DL strategies in the geospatial domain, where geodata possesses characteristics that align with the concept of a “...

Remote sensing technologies such as laser scanning and photogrammetry have advanced significantly in the field-to-BIM workflow in recent years, becoming key instruments for modeling as-built frameworks. They can be utilized to collect dense 3D measured data on the condition of a building, and the derived point cloud can be processed to generate the...

For sustainable thermal insulations, vegetable fibers/stems are widely used, which have very dispersed material properties even within a variety. The examination of the fibers’ porosity in the conventional way provided reference values in this study, but it can be problematic for cellulose-based fibers. This study examines the porosity of two straw...

Cities are becoming more complex and smart not only in terms of civil engineering infrastructures, but also in their socioeconomic systems. Info communication technologies and tools enable to monitor, understand and analyse cities as a whole living system in multiple ways. Bike-sharing is an effective and healthy mode of transport as well as a rich...

Nowadays application of fibre reinforced concretes (FRC) becomes more and more widespread, due to the favourable experiences with their behaviour. As a consequence, an increasing number of studies are published on different aspects of FRC. Several scientific papers indicate the importance of homogeneous distribution of fibres. Our study includes an...

Fire can cause damage in structures. The level of damage depends on several factors, such as maximal temperature, duration of fire, constituents of the concrete and so on. It is necessary to design fire-resistant buildings and deal with possible reconstruction after fire. For the reconstruction, it is important to determine the level of damage and...

Computer tomography (CT) is an excellent technique for obtaining accurate 3D information about the human body. It allows to visualize the organs, bones and blood vessels, furthermore it enables to diagnose anomalies and diseases. Its spatial reconstruction capability supports other interesting applications, such as inspecting different, even valuab...

Computer tomography (CT) is an excellent technique for obtaining accurate 3D information about the human body. It allows to visualize the organs, bones and blood vessels, furthermore it enables to diagnose anomalies and diseases. Its spatial reconstruction capability supports other interesting applications, such as inspecting different, even valuab...

Durability and functionality of hot mix asphalts (HMA) depend on air voids and their characteristics. The air void content of asphalt core samples could be determined by direct and indirect methods. The direct methods are destructive since they determine the air void content by decomposing the mix into its individual components. They are usually ac...

Computed tomography (CT) is a promising technique that is suitable to analyze core samples of already built structures or test the quality of geomaterials before use. The CT creates an image series of the examined object's cross sections using an X-ray; hence, materials of different density could be separated on the slices. To analyze the images, c...

This paper presents an automatic processing of high amount images of X-ray synchrotron tomographic microscopy. The developed method enables the analysis of vascular and even of microvascular network of different organs. In this study a cylindrical shaped, NiDAB labelled brain sample of a diameter of half a millimeter was imaged and analyzed with an...