Naršyti pagal autorių "Abromavičius, Vytautas"

Dabar rodomi įrašai 1-20 iš 31

    • A review of fingerprinting techniques for smart cities 

      Celik, Gurkan; Baimagambetova, Moldir; Abromavičius, Vytautas (2022 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream), 21 April 2022, Vilnius, Lithuania / organized by: Vilnius Gediminas Technical University, 2022)
      This paper introduces a review on most common fingerprinting techniques for indoor localization systems, and is aimed at the researchers who want to understand all the aspects and start working in the area of fingerprinting ...

    • A system for a real-time electronic component detection and classification on a conveyor belt 

      Varna, Dainius; Abromavičius, Vytautas (Applied sciences: Special issue: Innovations in intelligent machinery and industry 4.0, 2022)
      The presented research addresses the real-time object detection problem with small and moving objects, specifically the surface-mount component on a conveyor. Detecting and counting small moving objects on the assembly ...

    • Algorithm for real-time detection of heart rate from noisy ECG signals supported by continuous blood pressure analysis 

      Abromavičius, Vytautas; Serackis, Artūras (Electrical, Electronic and Information Sciences (eStream) : proceedings of the 2015 Open conference, 21 April, 2015, Vilnius, Lithuania / Vilnius Gediminas Technical University, 2015)
      The algorithm proposed in this paper is designed for robust identification of the heart beat annotations in multimodal data, consisting of ECG signal and one or several continuous arterial blood pressure signals. In case ...

    • Algorithm for real-time detection of heart rate from noisy ECG signals supported by continuous blood pressure analysis 

      Abromavičius, Vytautas; Serackis, Artūras (2015 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2015, Vilnius, Lithuania, 2015)
      The algorithm proposed in this paper is designed for robust identification of the heart beat annotations in multimodal data, consisting of ECG signal and one or several continuous arterial blood pressure signals. In case ...

    • Analysis of properties of the multilayer meander structures for wireless communications 

      Belova-Plonienė, Diana; Krukonis, Audrius; Urbanavičius, Vytautas; Gurskas, Antanas; Abromavičius, Vytautas; Katkevičius, Andrius (Electronics, 2023)
      Multilayer meander structures for wireless communications are presented in this paper. The miniaturization of meander structures is solved by positioning the meander conductor in multiple layers. The influence of the ...

    • Automatic adjustment of disparity in stereo view by eye activity based markers 

      Abromavičius, Vytautas; Serackis, Artūras; Navakauskas, Dalius (9th International workshop on Data Analysis Methods for Software Systems (DAMSS), Druskininkai, Lithuania, November 30 - December 2, 2017, 2017)

    • Biomedicininių signalų analizės metodų tyrimas 

      Abromavičius, Vytautas
      Šiame darbe išanalizuoti metodai nagrinėjantys biomedicininius signalus, ieškantys įvairių požymių EKG ir kraujo spaudimo signaluose. Darbe apžvelgti įvairūs QRS kompleksų detektoriai, jų pritaikymo pavyzdžiai, algoritmai ...

    • Detecting sense of presence changes in EEG spectrum during perception of immersive audiovisual content 

      Abromavičius, Vytautas; Gedminas, Aurimas; Serackis, Artūras (2017 Open conference of Electrical, Electronic and Information Sciences (eStream) : proceedings of the conference, April 27, 2017, Vilnius, Lithuania / Organized by: Vilnius Gediminas technical university, 2017)
      Quality of Experience (QoE) in multimedia is amply investigated in order to assess the overall acceptability of the content as perceived subjectively by the end user. QoE is usually quantified by self-evaluated subjective ...

    • Detecting sense of presence changes in EEG spectrum during perception of immersive audiovisual content 

      Abromavičius, Vytautas; Gedminas, Aurimas; Serackis, Artūras (2017 Open Conference of Electrical, Electronic and Information Sciences (eStream), April 27, 2017, Vilnius, Lithuania, 2017)
      Quality of Experience (QoE) in multimedia is amply investigated in order to assess the overall acceptability of the content as perceived subjectively by the end user. QoE is usually quantified by self-evaluated subjective ...

    • Evaluation of EEG-based complementary features for assessment of visual discomfort based on stable depth perception time 

      Abromavičius, Vytautas; Serackis, Artūras; Katkevičius, Andrius; Plonis, Darius (Radioengineering, 2018)
      The investigation aimed at the evaluation of EEG activity during stereoscopic perception of images with different levels of visual comfort. Different levels of disparity and the number of details in stereoscopic views in ...

    • Exploration of Genetic Algorithm-Driven Hyperparameter Optimization for Convolutional Neural Networks 

      Narmontas, Audrius; Jankevičiūtė, Rūta; Bliujus, Tomas; Vaičekauskas, Evaldas; Abromavičius, Vytautas (2024 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream), April 25, 2024, Vilnius, Lithuania, 2024)
      Convolutional Neural Networks (CNNs) have been widely used in artificial intelligence (AI) research. However, the time-intensive nature of hyperparameter optimization remains a major challenge. In this study, we investigated ...

    • Exploring the Effectiveness of Vision Transformers in Diabetic Retinopathy Identification via Retinal Imaging 

      Jankevičiūtė, Rūta; Abromavičius, Vytautas (2024 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream), April 25, 2024, Vilnius, Lithuania, 2024)
      Vision transformers (ViTs) have begun to be adopted in medical imaging analysis. However, despite their success in other areas of computer vision, ViTs are still largely unexplored in this specific medical imaging task. ...

    • Extraction and investigation of biosignal features for visual discomfort evaluation 

      Abromavičius, Vytautas (2019)
      Comfortable stereoscopic perception continues to be an essential area of research. The growing interest in virtual reality content and increasing market for head-mounted displays (HMDs) still cause issues of balancing depth ...

    • Eye and EEG activity markers for visual comfort level of images 

      Abromavičius, Vytautas; Serackis, Artūras (Biocybernetics and biomedical engineering, 2018)
      Depth perception by binocular cues is based on the matching of image features from one retina with corresponding elements from the second retina. However, high disparities are related to the higher visual discomfort levels ...

    • Finding the least motion-blurred image by reusing early features of object detection network 

      Tamulionis, Mantas; Sledevič, Tomyslav; Abromavičius, Vytautas; Kurpytė-Lipnickė, Dovilė; Navakauskas, Dalius; Serackis, Artūras; Matuzevičius, Dalius (Applied sciences: Application of Deep Learning Methods for Multimedia, 2023)
      Taking smartphone-made videos for photogrammetry is a convenient approach because of the easy image collection process for the object being reconstructed. However, the video may contain a lot of relatively similar frames. ...

    • Identification of ECG signal pattern changes to reduce the incidence of Ventricular Tachycardia false alarms 

      Serackis, Artūras; Abromavičius, Vytautas; Gudiškis, Andrius (Computing in cardiology 2015. 42nd annual conference, September 6-9, 2015 Nice, France, 2015)
      The paper focuses on the reduction of the false alarms in the Intensive Care Units (ICU). Five alarm types were analyzed in this study: Asystole, Extreme Bradycardia, Ex- treme Tachycardia, Ventricular Tachycardia and ...

    • Investigation of pneumonia detection using convolutional neural networks 

      Cicėnas, Benediktas; Abromavičius, Vytautas (2022 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream), 21 April 2022, Vilnius, Lithuania / organized by: Vilnius Gediminas Technical University, 2022)
      With the advance of Covid-19 pneumonia and its complications increased the load of radiologists several times. The pneumonia detection usually is performed by examination of chest X-Ray radiograph by the radiologists. This ...

    • Investigation of Pneumonia Detection using Convolutional Neural Networks 

      Cicėnas, Benediktas; Abromavičius, Vytautas (2022 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream), April 21, 2022, Vilnius, Lithuania, 2022)
      With the advance of Covid-19 pneumonia and its complications increased the load of radiologists several times. The pneumonia detection usually is performed by examination of chest X-Ray radiograph by the radiologists. This ...

    • Multiple sound source localization in three dimensions using convolutional neural networks and clustering based post-processing 

      Sakavičius, Saulius; Serackis, Artūras; Abromavičius, Vytautas (IEEE access, 2022)
      Sound source localization methods are successfully applied for various estimation tasks, such as tracking and detecting objects, aiming cameras, and navigating robots. However, large and usually complex distributed microphone ...

    • Patirtos kokybės tyrimas taikant ECG požymius stebint audiovizualinį turinį 

      Abromavičius, Vytautas (Mokslas – Lietuvos ateitis: Elektronika ir elektrotechnika = Science – future of Lithuania: Electronics and electrical engineering, 2017)
      Tobulėjančios technologijos suteikia galimybę matyti vis geresnį vaizdo ir garso turinį. Matuojant patirtą kokybę (angl. Quality of Experience (QoE)) galima įvertinti vartotojui rodomą turinį, taip pat įvertinama ne tik ...