Žilinská univerzita v Žiline
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Item Experimentálne verifikačné merania zamerané na posúdenie presnosti 3D dokumentácie trasologických stôp(University of Žilina, 2025) Adamová, Veronika; Kolla, Eduard; Szabo, LukášThe submitted article presents a partial objective of the ongoing research entitled “Investigation of the Potential of 3D Technologies in Securing and Extracting 3D Footwear Impression Traces.” This objective, also addressed within a diploma thesis, consisted of a series of experimental measurements focused on acquiring 3D models of footwear impressions created with a reference substitute shoe sole, in order to maintain repeatable conditions. The article further proposes a procedure for analysing the collected data using available software tools and for evaluating the accuracy of the applied 3D methods for documenting volumetric footwear impressions. Particular attention is devoted to the application of photogrammetry in documenting these impressions and to the subsequent extraction of their volumetric parameters along the x, y, and z axes. Such data can be especially useful for more complex biomechanical assessments, for example, when estimating physical parameters such as the perpetrator’s body weight.Item Komparatívna analýza vplyvu výšky zábradlia na priebeh relevantných dopadových údajov(University of Žilina, 2024) Kolla, Eduard; Adamová, Veronika; Szabo, LukášThe article presents a quantitative biomechanical reconstruction and analysis of a forensically relevant event—a fall of a human subject from height—and a comparative analysis of guardrail height in such incidents. The reconstruction was conducted using the multibody module of PC-Crash simulation software within a 3D model of the technically relevant parts of the building, created from a 3D point cloud of the site. The results of the analysis suggest that the height of the guardrail may have influenced the course of the event, even though the guardrail height met legislative specifications for the given balcony parameters.Item 3D modelovanie pre potreby simulačnej rekonštrukcie pádu ľudského subjektu z výšky(University of Žilina, 2023) Kolla, Eduard; Adamová, VeronikaThe article presents the methodology for 3D modelling for biomechanical evaluation of falls from the height of a human subject. It focuses on 3D modelling as a base for numerical simulation using multibody modules in the PC-Crash simulation software. Basic steps for the creation of a 3D multibody model of the relevant building structure from a 3D point cloud are presented, as well as the procedure for the creation of a biofidelic female human body model. The multibody model of building structure and a multibody model of the human body can be in the following steps used for comprehensive parametric evaluation of possible fall scenarios using the iterative approach for convergence of trace correspondences.Item Metodika získavania vonkajšej geometrie segmentov novej generácie skúšobnej figuríny(2022) Adamová, Veronika; Kolla, EduardThe article presents the fulfilment of a partial goal of the research project focused on developing and constructing a biofidelic surrogate of the human body to improve the forensic reconstruction of road traffic accidents. It aims to describe the methods and results of acquiring external geometry of segments of crash test dummy Hybrid III. To create a precise spatial representation of dummy segments, we applied 3D laser scanning using the handheld 3D scanner VIUscan Handyscan 3D. The workflow, used material and application of software support are closely described in the methodical part of the article. The results present 3D models of significant material for the continuous fulfilment of project goals. In the follow-up activities, we will use dummy external geometry data, particularly to develop molds for casting segments of new-generation synthetic human body surrogates.