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Banţă, Diana (author), Kho, Sydney (author), Lantink, Anna (author), Marin, Alexandru (author), Petkov, Vladimir (author)Watermarks are historical motifs present in the texture of paper that are commonly used to identify the paper manufacturers. They only become visible when viewed under certain light conditions. Under ideal circumstances, researchers may use watermarks to determine a historical document’s origins and context. To identify a watermark, it is...student report 2023
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Shi, Rui (author), Wüthrich, D. (author), Chanson, Hubert (author)Continuing from the part 1 (Shi et al., 2022) this paper presents an experimental investigation of transient void fraction and bubble statistics in a highly turbulent breaking bore with Fr<sub>1</sub>=2.4. The measurements were conducted using a combination of dual-tip phase-detection probes and an ultra-high-speed video camera. The enclosed...journal article 2023
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Owen, C.C. (author), Hendrikse, H. (author)The manual application of universal (Rigsby) stage techniques is commonly used to determine the fabric of thin sections of ice viewed with crossed-polarized light. This process can require hours of focus in cold conditions to identify the c-axis of each grain in a thin section. Automated ice texture and fabric methods of several forms exist...journal article 2023
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Hendriks, P. (author), van Dijk, Kiki M. (author), Boekestijn, Bas (author), Broersen, Alexander (author), van Duijn-de Vreugd, Jacoba J. (author), Coenraad, Minneke J. (author), Dijkstra, J. (author), de Geus-Oei, L.F. (author), Burgmans, M.C. (author)Purpose: The primary objective of this study was to determine the feasibility of ablation margin quantification using a standardized scanning protocol during thermal ablation (TA) of hepatocellular carcinoma (HCC), and a rigid registration algorithm. Secondary objectives were to determine the inter- and intra-observer variability of tumor...journal article 2023
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de Vries, J.J. (author), Laan, Daphne M. (author), Frey, F.F.F. (author), Koenderink, G.H. (author), de Maat, Moniek P.M. (author)Fibrous networks are essential structural components of biological and engineered materials. Accordingly, many approaches have been developed to quantify their structural properties, which define their material properties. However, a comprehensive overview and comparison of methods is lacking. Therefore, we systematically searched for...journal article 2023
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van der Graaf, H. (author), Bertolini, Alessandro (author), van Heijningen, Joris (author), Bouwens, Bram (author), de Gaay Fortman, Nelson (author), van der Reep, Tom (author), Otemann, Lennart (author)The Rasnik system is a 3-point optical displacement monitor with sub-nanometer precision. The CCD-Rasnik alignment system was developed in 1993 for monitoring the alignment of the muon chambers of the ATLAS Muon Spectrometer at CERN. Since then, the development has continued as new CMOS imaging pixel chips became available. In this work the...journal article 2023
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Li, X. (author)Fatigue damage of composite laminates has attracted considerable attention from research community and industry, in view that laminated structures are inevitable to suffer from fatigue loading during their service life. It is rather complicated to understand and explain, what governs the initiation, accumulation, interaction (synergy or...doctoral thesis 2022
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Coudert-Osmont, Yoann (author), Eisemann, E. (author), Marroquim, Ricardo (author)Perspective cues play an important role in painting analysis as it may unveil important characteristics about the painter's techniques and creation process. Nevertheless, extracting perspective lines and their corresponding vanishing points is usually a laborious manual task. Moreover, small variations in the lines may lead to large variations...conference paper 2022
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Liang, M. (author), Gan, Y. (author), Chang, Z. (author), Wan, Z. (author), Schlangen, E. (author), Šavija, B. (author)This study aims to provide an efficient alternative for predicting creep modulus of cement paste based on Deep Convolutional Neural Network (DCNN). First, a microscale lattice model for short-term creep is adopted to build a database that contains 18,920 samples. Then, 3 DCNNs with different consecutive convolutional layers are built to learn...journal article 2022
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González, Elena (author), Balado Frías, J. (author), Arias, Pedro (author), Lorenzo, Henrique (author)The enrichment of the point clouds with colour images improves the visualisation of the data as well as the segmentation and recognition processes. Coloured point clouds are becoming increasingly common, however, the colour they display is not always as expected. Errors in the colouring of point clouds acquired with Mobile Laser Scanning are...journal article 2022
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Simonov, Alex (author)In this paper, we investigate the problem of segmenting the foreground objects from the known background. The target application is a setting where a large display serves as the backdrop for a scene. The method proposed in this paper solves this problem in two steps. We try to separate the foreground and the background with the modified...bachelor thesis 2021
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Fritz, Arnout (author)With the ever-increasing demand for a more efficient production process, the thickness of silicon wafers for the solar cell industry has shown a decreasing trend over the years. This makes the substrates more and more fragile, with an increasing breakage rate as a result. Research at the TU Delft has been done on contactless handling, using air...master thesis 2021
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Gong, X. (author), Daamen, W. (author), Bozzon, A. (author), Hoogendoorn, S.P. (author)City events are getting popular and are attracting a large number of people. This increase needs for methods and tools to provide stakeholders with crowd size information for crowd management purposes. Previous works proposed a large number of methods to count the crowd using different data in various contexts, but no methods proposed using...journal article 2021
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Klijn, M.E. (author), Hubbuch, Juergen (author)Imaging is increasingly more utilized as analytical technology in biopharmaceutical formulation research, with applications ranging from subvisible particle characterization to thermal stability screening and residual moisture analysis. This review offers a comprehensive overview of analytical imaging for scientists active in...journal article 2021
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Balado Frías, J. (author), Soilán, M. (author), Díaz-Vilarino, L. (author), van Oosterom, P.J.M. (author)Traffic signs are one of the most relevant road assets for driving, as the safety of drivers depends to a great extent on their correct location. In this paper two methods are compared for the segmentation of the sign and the pole supporting it. Both methods are based on the morphological opening to identify the sign points, the first one...journal article 2021
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Bhatnagar, Prernna (author)Magnetic Resonance Imaging is a popular modality for brain imaging in present times. The quality of the images depends on the strength of the magnetic field. An MRI scanner with a magnetic field strength of 3 Tesla(T) is pre-dominantly used for clinical purposes. However, with the advancement in technology, and the need to image finer image...master thesis 2020
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Monreal Madrigal, Alejandro (author)Magnetic Resonance Imaging is one of the most widely used imaging modalities nowadays and it performs especially well imaging human organs such as the brain and liver. One of its main limitations is the relatively long imaging times, to overcome this issue and speed up the data acquisition, several techniques such as Parallel Imaging or PI have...master thesis 2020
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Boel, F.D.E.M. (author)<b>Introduction</b> The objective of this research is to assess whether there is a correlation between quantitatively assessed ablation margins and the occurrence of local tumor progression (LTP) using dedicated image processing software.<br/><b>Methods</b> 28 patients with 45 de novo HCCs treated with percutaneous thermal ablation, e.g....master thesis 2020
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Bhardwaj, Shikhar (author)Advancements in the semiconductor manufacturing processes, particularly photo-lithography, contribute to the sustainability goals of the modern society by enabling production of cheaper, more efficient computer chips. This thesis work focused on improvements to a technique called immersion lithography that uses a confined pool of liquid as the...master thesis 2020
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Jujjavarapu, Satyajith (author)Schistosomiasis is a neglected tropical disease (NTD) that affects around a quarter-billion people worldwide. Most of the infected people live in tropical regions, especially in sub-Saharan Africa, where there is limited access to diagnostic and other relevant medical facilities. The current reference standard diagnostic procedure - conventional...master thesis 2020