Searched for: author%3A%22de+Wit%2C+J.%22
(1 - 11 of 11)
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de Wit, J. (author)
doctoral thesis 2023
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de Wit, J. (author), Glentis, George Othon (author), Kalkman, J. (author)
Phase-preserving spectral estimation optical coherence tomography (SE-OCT) enables combining axial resolution improvement with computational depth of field (DOF) extension. We show that the combination of SE-OCT with interferometric synthetic aperture microscopy (ISAM) and computational adaptive optics (CAO) results in high 3D resolution over...
journal article 2023
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de Wit, J. (author), Glentis, George Othon (author), Kalkman, J. (author)
Phase sensitive optical coherence tomography (OCT) is able to measure small axial motion at the level of ten nanometer. However, when interfaces are located close to each other, the phase of one interface may influence the phase of the other interface. This spectral leakage hampers the ability to see relative motion between structures within...
conference paper 2023
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de Wit, J. (author), Glentis, George Othon (author), Kalkman, J. (author)
Phase-preserving spectral estimation optical coherence tomography (SE-OCT) enables combining axial resolution improvement with computational depth of focus (DOF) extension. We combine SE-OCT with interferometric synthetic aperture microscopy (ISAM) to obtain a high 3D resolution over a large depth range with a narrow bandwidth visible light...
conference paper 2023
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Tanner, Florian (author), Tonn, Sebastian (author), de Wit, J. (author), Van den Ackerveken, Guido (author), Berger, Bettina (author), Plett, Darren (author)
Plant pathogens cause yield losses in crops worldwide. Breeding for improved disease resistance and management by precision agriculture are two approaches to limit such yield losses. Both rely on detecting and quantifying signs and symptoms of plant disease. To achieve this, the field of plant phenotyping makes use of non-invasive sensor...
review 2022
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de Wit, J. (author), Angelopoulos, Kostas (author), Kalkman, J. (author), Glentis, George Othon (author)
Spectral-estimation OCT (SE-OCT) is a computational method to enhance the axial resolution beyond the traditional bandwidth limit. However, it has not yet been used widely due to its high computational load, dependency on user-optimized parameters, and inaccuracy in intensity reconstruction. In this study, we implement SE-OCT using a fast...
journal article 2021
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de Wit, J. (author), Tonn, Sebastian (author), van den Ackerveken, Guido (author), Kalkman, J. (author)
Optical coherence tomography (OCT) can be a valuable imaging tool for in vivo and label-free digital plant phenotyping. However, for imaging leaves, air-filled cavities limit the penetration depth and reduce the image quality. Moreover, up to now quantification of leaf morphology with OCT has been done in one-dimensional or two-dimensional...
journal article 2020
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Fool, F. (author), de Wit, J. (author), Vos, H.J. (author), Bera, D. (author), de Jong, N. (author), Verweij, M.D. (author)
The huge amount of data that needs to be transferred between probe and imaging system becomes a major issue when the data transfer capacity is limited, e.g. in handheld systems, wireless probes and miniaturized probes. The amount of data can be significantly reduced by using two-stage beamforming. The first stage consists of a fixed focus...
conference paper 2018
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Herinckx, L.E. (author), Gutleb, T.L.M. (author), Van Nunen, R. (author), Van Rompuy, E. (author), Bos, D.A. (author), Dijkers, H.P.A. (author), De Wit, J. (author), Radfar, H. (author), Sahin, S.E. (author), Beelarts van Blokland, W.W.A. (author)
Formation flying is introduced as a new and innovative air transportation system for long-haul commercial flight. With this paper the operational feasibility of formation flying is addressed, both from a market demand and economic, as well as an air traffic control perspective. Preliminary results of a case study indicate that operating a newly...
conference paper 2011
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Dijkers, H.P.A. (author), Van Nunen, R. (author), Bos, D.A. (author), Gutleb, T.L.M. (author), Herinckx, L.E. (author), Radfar, H. (author), Van Rompuy, E. (author), Sayin, S.E. (author), De Wit, J. (author), Beelaerts van Blokland, W.W.A. (author)
The airline industry is under continuous pressure to reduce emissions and costs. This paper investigates the feasibility for commercial airlines to use formation flight to reduce emissions and fuel burn. To fly in formation, an aircraft needs to benefit from the wake vortices of the preceding aircraft. This requires a stable aerodynamic flow,...
conference paper 2011
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Tu, H. (author), Tamminga, G.F. (author), De Wit, J. (author), Van der Berg, W. (author)
The evacuation clearance time is one of the key indicators in an evacuation plan and is determined by the expected behavior of the endangered residents and roadway network characteristics. The city of Almere has developed an evacuation plan in case of the emergency of a flooding, but assumes a normal driving behavior of the evacuees. In this...
journal article 2010
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