Dr. Alexander Freytag Profile

Dr. Alexander Freytag

at Carl Zeiss AG

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Author

Publications (4)

Proceedings Article | 15 August 2023 Paper

In-process powder bed monitoring with angular illumination

Thomas Milde, Alexander Freytag, Ghazal Ghazaei

Proceedings Volume 12618, 1261806 (2023) https://doi.org/10.1117/12.2675824

KEYWORDS: Light sources and illumination, Machine learning, Image processing, Printing, Inspection, Cameras, Feedback loops, Optical engineering, Image segmentation

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Proceedings Article | 3 April 2023 Poster + Paper

Self-supervised denoising using optimized blind-spot networks for real-time application in 4D-OCT

Jonas Nienhaus, Philipp Matten, Anja Britten, Thomas Schlegl, Eva Höck, Alexander Freytag, Matt Everett, Nancy Hecker-Denschlag, Wolfgang Drexler, Rainer Leitgeb, Tilman Schmoll

Proceedings Volume 12464, 124641V (2023) https://doi.org/10.1117/12.2653479

KEYWORDS: Deep learning, Denoising, Optical coherence tomography, Signal to noise ratio, Speckle

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Proceedings Article | 8 March 2023 Presentation + Paper

Real-time neural-network-based denoising for intraoperative 4D-OCT

Jonas Nienhaus, Philipp Matten, Anja Britten, Thomas Schlegl, Eva Höck, Alexander Freytag, Matt Everett, Nancy Hecker-Denschlag, Wolfgang Drexler, Rainer Leitgeb, Tilman Schmoll

Proceedings Volume 12367, 123670T (2023) https://doi.org/10.1117/12.2652855

KEYWORDS: Denoising, Optical coherence tomography, Signal to noise ratio, Neural networks, Artificial neural networks, GPU based image processing

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Proceedings Article | 6 March 2023 Poster + Paper

Intra-operative brain tumor detection with deep learning-optimized hyperspectral imaging

Tommaso Giannantonio, Anna Alperovich, Piercosimo Semeraro, Manfredo Atzori, Xiaohan Zhang, Christoph Hauger, Alexander Freytag, Siri Luthman, Roeland Vandebriel, Murali Jayapala, Lien Solie, Steven de Vleeschouwer

Proceedings Volume 12373, 123730F (2023) https://doi.org/10.1117/12.2646999

KEYWORDS: Deep learning, Tumors, Surgery, Neural networks, Hyperspectral imaging, RGB color model, Tissues, Cameras, Brain, Real time optical diagnostics

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