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Abstract: Virtual reality (VR) has emerged as a powerful medium for medical imaging visualization and training, offering immersive and interactive experiences that complement conventional two-dimensional (2D) imaging workflows. In gynecology, ultrasound (US) is the primary imaging modality for assessing uterine morphology, yet its interpretation requires significant spatial reasoning and is challenging for trainees with limited clinical exposure. This paper presents a standalone VR system for interactive visualization of uterine US volumes, designed for deployment on Meta Quest 2. The system integrates three core components: (i) textured surface meshes mapped directly from US intensity values, (ii) per-vertex deviation heatmaps comparing individual anatomy to a population-average uterus, and (iii) orthogonal slice browsing with adjustable transfer functions and lookup tables. The system is developed in Unity for immersive rendering. Preliminary demonstrations indicate that providing outside- and inside-based views improves spatial understanding and provides educational value by contextualizing individual variability. Performance profiling confirms real-time rendering on standalone hardware, ensuring fluid interaction without tethered computing resources. By unifying segmentation-driven shape analysis with immersive visualization, this work highlights the potential of lightweight VR applications to enhance gynecological training and provide accessible platforms for medical education and research.
Keywords: virtual reality, histeroscopy, simulation, uterus
Published in RUP: 29.01.2026; Views: 145; Downloads: 1
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Abstract: The management of truck arrivals at container terminals is crucial for efficient port operations. Congestions developing both outside and inside the gates can cause logistical problems, while also having a significant impact on the environment and the surroundings of the port. Therefore, optimizing truck queues outside the gates of the port, as well as routing of trucks inside the terminals can lead to an improve- ment in the overall efficiency of the port processes. This paper presents a mixed- integer linear programming formulation to determine these optimal truck routes and schedules. The model considers a port with an external parking lot, multiple gates, internal roadways, and docks. A rolling horizon heuristic is also developed for the solution of instances where the model is otherwise intractable. The developed meth- ods are evaluated on instances simulated based on real-world data.
Keywords: scheduling, port logistics, container flow optimization, simulation, mixed-integer linear programming
Published in RUP: 04.07.2025; Views: 979; Downloads: 5
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Abstract: We examined eye and head movements to gain insights into skill development in clinical settings. A total of 24 practitioners participated in simulated baby delivery training sessions. We calculated key metrics, including pupillary response rate, fixation duration, or angular velocity. Our findings indicate that eye and head tracking can effectively differentiate between trained and untrained practitioners, particularly during labor tasks. For example, head-related features achieved an F1 score of 0.85 and AUC of 0.86, whereas pupil-related features achieved F1 score of 0.77 and AUC of 0.85. The results lay the groundwork for computational models that support implicit skill assessment and training in clinical settings by using commodity eye-tracking glasses as a complementary device to more traditional evaluation methods such as subjective scores.
Keywords: eye movemens, head movements, simulation training
Published in RUP: 23.06.2025; Views: 883; Downloads: 14
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Keywords: sensorimotor simulation, emotional expressivity, face, mother, infant
Published in RUP: 23.08.2024; Views: 1315; Downloads: 38
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Keywords: user-perspective view, magic lens, virtual reality simulation
Published in RUP: 17.04.2023; Views: 4633; Downloads: 41
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