Dr. Abhishek Kumar Profile

Dr. Abhishek Kumar

Founder, CEO at Wavesense Engineering GmbH

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Author

Publications (8)

Proceedings Article | 13 March 2024 Presentation + Paper

Wide dynamic range digital aberrometry and fast anterior-segment imaging with MHz SS-OCT

Mengyuan Ke, Abhishek Kumar, Björn Meyer, Thor Ansbæk, Rainer Leitgeb

Proceedings Volume 12830, 128300S (2024) https://doi.org/10.1117/12.3005622

KEYWORDS: Eye, Point spread functions, Eye models, Optical coherence tomography, Imaging systems, Wavefront errors, Vertical cavity surface emitting lasers, Anatomy

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Proceedings Article | 5 March 2021 Presentation

Digital adaptive optics based on digital lateral shearing of the computed pupil field for flying spot retinal swept source OCT in vivo

Abhishek Kumar, Stefan Georgiev, Matthias Salas, Rainer Leitgeb

Proceedings Volume 11630, 116300B (2021) https://doi.org/10.1117/12.2583682

KEYWORDS: Optical signal processing, Optical coherence tomography, In vivo imaging, Adaptive optics, Wavefronts, Error analysis, Image restoration

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SPIE Journal Paper | 13 June 2018 Open Access

Endoscopic optical coherence tomography with a flexible fiber bundle

Lara M. Wurster, Laurin Ginner, Abhishek Kumar, Matthias Salas, Andreas Wartak, Rainer Leitgeb

JBO, Vol. 23, Issue 06, 066001, (June 2018) https://doi.org/10.1117/12.10.1117/1.JBO.23.6.066001

KEYWORDS: Optical coherence tomography, Endoscopy, Endoscopes, Signal detection, In vivo imaging, Mirrors, GRIN lenses, Tissues, Image quality, Imaging systems

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Proceedings Article | 19 April 2017 Presentation

Investigation of the benefit of adaptive optics optical coherence tomography angiography for the human retina (Conference Presentation)

Matthias Salas, Marco Augustin, Laurin Ginner, Abhishek Kumar, Bernhard Baumann, Rainer Leitgeb, Wolfgang Drexler, Sonja Prager, Julia Hafner, Ursula Schmidt-Erfurth, Michael Pircher

Proceedings Volume 10053, 100530J (2017) https://doi.org/10.1117/12.2254768

KEYWORDS: Biomedical optics, Current controlled current source, Optical coherence tomography, Adaptive optics optical coherence tomography, Angiography, Retina, Adaptive optics, Capillaries, Tissues, Coherence (optics)

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Proceedings Article | 26 April 2016 Presentation

Retinal photoreceptor imaging with high-speed line-field parallel spectral domain OCT (Conference Presentation)

Daniel Fechtig, Laurin Ginner, Abhishek Kumar, Michael Pircher, Tilman Schmoll, Lara Wurster, Wolfgang Drexler, Rainer Leitgeb

Proceedings Volume 9697, 969704 (2016) https://doi.org/10.1117/12.2214719

KEYWORDS: Optical coherence tomography, Retinal scanning, Imaging systems, CMOS sensors, Detector arrays, In vivo imaging, 3D acquisition, Michelson interferometers, Light sources, Light

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Proceedings Article | 2 March 2015 Paper

High-speed, digitally refocused retinal imaging with line-field parallel swept source OCT

Daniel Fechtig, Abhishek Kumar, Laurin Ginner, Wolfgang Drexler, Rainer Leitgeb

Proceedings Volume 9312, 931203 (2015) https://doi.org/10.1117/12.2081924

KEYWORDS: Optical coherence tomography, Retinal scanning, 3D acquisition, 3D image processing, In vivo imaging, Sensors, Interferometry, Angiography, Imaging systems, Fovea centralis

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SPIE Journal Paper | 31 July 2014 Open Access

Optical coherence tomography today: speed, contrast, and multimodality

Wolfgang Drexler, Mengyang Liu, Abhishek Kumar, Tschackad Kamali, Angelika Unterhuber, Rainer Leitgeb

JBO, Vol. 19, Issue 07, 071412, (July 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.7.071412

KEYWORDS: Optical coherence tomography, Imaging systems, Tissues, Tissue optics, Angiography, In vivo imaging, Light sources, Skin, Image resolution, Photoacoustic imaging

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Proceedings Article | 8 May 2014 Paper

Line field off axis swept source OCT utilizing digital refocusing

Daniel Fechtig, Abhishek Kumar, Branislav Grajciar, Amardeep S. G. Singh, Wolfgang Drexler, Rainer Leitgeb

Proceedings Volume 9129, 91293S (2014) https://doi.org/10.1117/12.2052195

KEYWORDS: Optical coherence tomography, Image resolution, Imaging systems, Confocal microscopy, In vivo imaging, Wavefronts, Geometrical optics, Optical signal processing, Motion measurement, Beam splitters

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Showing 5 of 8 publications

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