Marcin Lewandowski
YOU?
Author Swipe
View article: Preservation of Language Understanding Capabilities in Speech-aware Large Language Models
Preservation of Language Understanding Capabilities in Speech-aware Large Language Models Open
The paper presents C3T (Cross-modal Capabilities Conservation Test), a new benchmark for assessing the performance of speech-aware large language models. The benchmark utilizes textual tasks and a voice cloning text-to-speech model to quan…
View article: Implicit Neural Representations for Speed-of-Sound Estimation in Ultrasound
Implicit Neural Representations for Speed-of-Sound Estimation in Ultrasound Open
Accurate estimation of the speed-of-sound (SoS) is important for ultrasound (US) image reconstruction techniques and tissue characterization. Various approaches have been proposed to calculate SoS, ranging from tomography-inspired algorith…
View article: Disease-Free and Overall Survival Implications of Pelvic Lymphadenectomy in Endometrial Cancer: A Retrospective Population-Based Single-Center Study
Disease-Free and Overall Survival Implications of Pelvic Lymphadenectomy in Endometrial Cancer: A Retrospective Population-Based Single-Center Study Open
The role of pelvic lymphadenectomy in endometrial cancer remains unclear. In this study, we aimed to investigate the influence of lymphadenectomy on progression-free and overall survival among patients diagnosed with endometrial carcinoma.…
View article: A High-Speed Ultrasound Full-Matrix Capture Acquisition System for Robotic Weld Inspection
A High-Speed Ultrasound Full-Matrix Capture Acquisition System for Robotic Weld Inspection Open
Phased-Array Ultrasonic Technique is traditionally used for the non-destructive inspection of welds and supported by industrial-grade inspection equipment. FullMatrix Capture (FMC) with Total Focusing Method (TFM) provide new capabilities …
View article: Impact of COVID-19 Infection on Cardiorespiratory Fitness, Sleep, and Psychology of Endurance Athletes– CAESAR Study
Impact of COVID-19 Infection on Cardiorespiratory Fitness, Sleep, and Psychology of Endurance Athletes– CAESAR Study Open
COVID-19 has harmful impact on health. It is especially important for endurance athletes (EAs). Sleep and psychology influence sport performance. Aims of this study were: (1) investigation of the consequences of mild COVID-19 on sleep and …
View article: Validity of the Maximal Heart Rate Prediction Models among Runners and Cyclists
Validity of the Maximal Heart Rate Prediction Models among Runners and Cyclists Open
Maximal heart rate (HRmax) is a widely used measure of cardiorespiratory fitness. Prediction of HRmax is an alternative to cardiopulmonary exercise testing (CPET), but its accuracy among endurance athletes (EA) requires evaluation. This st…
View article: Shear Wave Elastography Implementation on a Portable Research Ultrasound System: Initial Results
Shear Wave Elastography Implementation on a Portable Research Ultrasound System: Initial Results Open
Ultrasound shear wave elastography (SWE) has emerged as a promising technique that enables the quantitative estimation of soft tissue stiffness. However, its practical implementation is complicated and presents a number of engineering chal…
View article: Estimating the ultrasound attenuation coefficient using convolutional neural networks -- a feasibility study
Estimating the ultrasound attenuation coefficient using convolutional neural networks -- a feasibility study Open
Attenuation coefficient (AC) is a fundamental measure of tissue acoustical properties, which can be used in medical diagnostics. In this work, we investigate the feasibility of using convolutional neural networks (CNNs) to directly estimat…
View article: Bio-project “derisking” through development of systematic methodologies and frameworks for risk assessment
Bio-project “derisking” through development of systematic methodologies and frameworks for risk assessment Open
One of the primary hindrances to producing a viable, sustainable domestic biomass industry for renewable biofuels, bio-products and bio-power is the lack of understanding and quantification of the risks associated with both the biomass sup…
View article: Optimization of Short-Lag Spatial Coherence Imaging Method
Optimization of Short-Lag Spatial Coherence Imaging Method Open
The computing performance optimization of the Short-Lag Spatial Coherence (SLSC) method applied to ultrasound data processing is presented. The method is based on the theory that signals from adjacent receivers are correlated, drawing on a…
View article: CZŁOWIEK TO KOMPUTER. O metaforach informatycznych w polszczyźnie codziennej
CZŁOWIEK TO KOMPUTER. O metaforach informatycznych w polszczyźnie codziennej Open
Od kilkunastu lat obserwujemy zjawisko przenikania terminów informatycznych do slangu młodzieżowego jak również do polszczyzny ogólnej.Owe zapożyczenia funkcjonują w nowych, metaforycznych sensach. Celem artykułu jest przegląd i analiza me…
View article: WaveFlow - Towards Integration of Ultrasound Processing with Deep Learning
WaveFlow - Towards Integration of Ultrasound Processing with Deep Learning Open
The ultimate goal of this work is a real-time processing framework for ultrasound image reconstruction augmented with machine learning. To attain this, we have implemented WaveFlow - a set of ultrasound data acquisition and processing tool…
View article: WaveFlow - Towards Integration of Ultrasound Processing with Deep\n Learning
WaveFlow - Towards Integration of Ultrasound Processing with Deep\n Learning Open
The ultimate goal of this work is a real-time processing framework for\nultrasound image reconstruction augmented with machine learning. To attain\nthis, we have implemented WaveFlow - a set of ultrasound data acquisition and\nprocessing t…
View article: Synthetic Aperture Cardiac Imaging with Reduced Number of Acquisition Channels. A Feasibility Study
Synthetic Aperture Cardiac Imaging with Reduced Number of Acquisition Channels. A Feasibility Study Open
Commercially available cardiac scanners use 64–128 elements phased-array (PA) probes and classical delay-and-sum beamforming to reconstruct a sector B-mode image. For portable and hand-held scanners, which are the fastest growing market, c…
View article: 3D scanning of the painting for the purpose of performing a measurement of deformations of the wooden panel painting support
3D scanning of the painting for the purpose of performing a measurement of deformations of the wooden panel painting support Open
The person ordering the research was Mr. Andrzej Cichy of the Faculty of Wood Technology at the Warsaw University of Life Sciences. The painting was made available from his private collection. The aim of the research conducted by SMARTTECH…
View article: University of Warsaw Geology Department uses SMARTTECH 3D scanner to discover the secrets of earth
University of Warsaw Geology Department uses SMARTTECH 3D scanner to discover the secrets of earth Open
Researches provided on University of Warsaw Geology Department uses a 3D scanner to make advanced analysis of quartz crystals found on different places on Earth. Quartz crystals are formed in the same process for millions of years. They us…
View article: Research and Medical Transcranial Doppler System
Research and Medical Transcranial Doppler System Open
A new ultrasound digital transcranial Doppler system (digiTDS) is introduced. The digiTDS enables diagnosis of intracranial vessels which are rather difficult to penetrate for standard systems. The device can display a color map of flow ve…
View article: Reverse engineering in designing process of aerodynamic fairing of motorbike
Reverse engineering in designing process of aerodynamic fairing of motorbike Open
W artykule omówiono proces pozyskania geometrii zewnętrznej motocykla przy pomocy bezdotykowego skanera 3D, która w końcowym etapie posłuży do zaprojektowania aerodynamicznej owiewki osłaniającej motocyklistę.Krok po kroku zaprezentowano c…
View article: Zastosowanie metody pełnej akwizycji macierzy do wizualizacji wad w technice UT Phased-Array
Zastosowanie metody pełnej akwizycji macierzy do wizualizacji wad w technice UT Phased-Array Open
Ultradźwiękowe systemy Phased-Array pozwalają na różne tryby skanowania i wizualizacji wad oraz zapewniają wyższą jakość inspekcji niż tradycyjne systemy jednokanałowe. Kolejnym krokiem w rozwoju tych systemów będzie metoda akwizycji pełne…
View article: Badania ultradźwiękowe płyt włóknisto-cementowych
Badania ultradźwiękowe płyt włóknisto-cementowych Open
W artykule przedstawiona została możliwość lokalizacji delaminacji w płycie włóknisto-cementowej za pomocą specjalnie do tego celu skonstruowanego urządzenia wykorzystującego metodę ultradźwiękową i fale podłużne. Przeprowadzono badania na…
View article: Badania ultradźwiękowe płyt włóknisto-cementowych
Badania ultradźwiękowe płyt włóknisto-cementowych Open
W artykule przedstawiona została możliwość lokalizacji delaminacji w płycie włóknisto-cementowej za pomocą specjalnie do tego celu skonstruowanego urządzenia wykorzystującego metodę ultradźwiękową i fale podłużne. Przeprowadzono badania na…
View article: Zastosowanie metody pełnej akwizycji macierzy do wizualizacji wad w technice UT Phased-Array
Zastosowanie metody pełnej akwizycji macierzy do wizualizacji wad w technice UT Phased-Array Open
\nUltradźwiękowe systemy Phased-Array pozwalają na różne tryby skanowania i wizualizacji wad oraz zapewniają wyższą jakość inspekcji niż tradycyjne systemy jednokanałowe. Kolejnym krokiem w rozwoju tych systemów będzie metoda akwizycji peł…
View article: Non-invasive cardiac imaging artifacts
Non-invasive cardiac imaging artifacts Open
View article: Automatic Emboli Detection System for the Artificial Heart
Automatic Emboli Detection System for the Artificial Heart Open
In spite of the progress in material engineering and ventricular assist devices construction, thromboembolism remains the most crucial problem in mechanical heart supporting systems. Therefore, the ability to monitor the patient's blood fo…