Dr. Thomas Kreis Profile

Dr. Thomas Kreis

Head of Dept at Bremer Institut für angewandte Strahltechnik GmbH

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Author

Publications (32)

SPIE Journal Paper | 4 September 2024

Lensless 3D-imaging by referenceless phase holography

Thomas Kreis

OE, Vol. 63, Issue 11, 111811, (September 2024) https://doi.org/10.1117/12.10.1117/1.OE.63.11.111811

KEYWORDS: Holography, Liquid crystal on silicon, 3D displays, Diffraction, Spatial light modulators, Optical engineering, Phase distribution, Displays, 3D metrology, Multiplexing

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Proceedings Article | 27 March 2018 Paper

Characterization of technical surfaces by structure function analysis

Michael Kalms, Thomas Kreis, Ralf Bergmann

Proceedings Volume 10599, 1059924 (2018) https://doi.org/10.1117/12.2296309

KEYWORDS: Digital signal processing, Analytical research, Clouds, Tin, Modulation, Physics, Electrical engineering, Materials processing, Americium, All optical signal processing

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Proceedings Article | 13 September 2012 Paper

Single-shot multiwavelength shape measurements with restricted aperture

S. Huferath-von Luepke, E. Kamau, Th. Kreis, C. von Kopylow

Proceedings Volume 8493, 84930V (2012) https://doi.org/10.1117/12.929782

KEYWORDS: Holograms, 3D image reconstruction, Sensors, CCD cameras, Digital holography, Speckle, Femtosecond phenomena, Beam splitters, Reconstruction algorithms, Holography

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Proceedings Article | 21 October 2011 Paper

Holographic approach to 3D television

Thomas Kreis

Proceedings Volume 8011, 80110H (2011) https://doi.org/10.1117/12.901899

KEYWORDS: Holograms, Holography, Spatial light modulators, 3D displays, 3D image processing, Eye, Digital holography, Computer generated holography, Optically addressed spatial light modulators, Goggles

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Proceedings Article | 27 May 2011 Paper

Industrial surface inspection by wavelet analysis

Thomas Kreis, Lars Rosenboom, Werner Jüptner

Proceedings Volume 8082, 808234 (2011) https://doi.org/10.1117/12.889112

KEYWORDS: Wavelets, Defect detection, Inspection, Wavelet transforms, Optical testing, Data compression, Linear filtering, Fourier transforms, Spatial resolution, Spectral resolution

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SPIE Journal Paper | 1 December 2010

Digital holographic recording and reconstruction of large scale objects for metrology and display

Jan Mundt, Thomas Kreis

OE, Vol. 49, Issue 12, 125801, (December 2010) https://doi.org/10.1117/12.10.1117/1.3524238

KEYWORDS: Holography, Digital holography, Lenses, Holograms, Charge-coupled devices, Digital recording, 3D image reconstruction, 3D displays, Metrology, Holographic interferometry

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Proceedings Article | 3 June 2010 Paper

Digital holographic recording using spatially resolved multiwavelengths

S. Huferath-von Luepke, C. von Kopylow, J. Geldmacher, Th. Kreis

Proceedings Volume 7730, 773005 (2010) https://doi.org/10.1117/12.859138

KEYWORDS: Holograms, Digital holography, Charge-coupled devices, Holography, Prisms, Dye lasers, Reconstruction algorithms, Femtosecond phenomena, Superposition, Beam splitters

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Proceedings Article | 17 June 2009 Paper

Characterization of optical fibers by digital holographic interferometry

Hamdy Wahba, Thomas Kreis

Proceedings Volume 7389, 73890K (2009) https://doi.org/10.1117/12.826854

KEYWORDS: Optical fibers, Refractive index, Digital holography, Holograms, Cladding, Phase shifts, Holographic interferometry, Interferometry, Phase modulation, Holography

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Proceedings Article | 12 May 2009 Paper

Processing of optically captured digital holograms for three-dimensional display

Thomas Naughton, Thomas Kreis, Levent Onural, Pietro Ferraro, Christian Depeursinge, Yves Emery, Bryan Hennelly, Malgorzata Kujawinska

Proceedings Volume 7329, 73290A (2009) https://doi.org/10.1117/12.821866

KEYWORDS: Digital holography, Holograms, 3D displays, Liquid crystal on silicon, Cameras, 3D image reconstruction, Holography, Spatial light modulators, Visualization, Optoelectronics

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SPIE Journal Paper | 1 May 2007

Resolution enhancement by aperture synthesis in digital holography

Thomas Kreis, Karsten Schluter

OE, Vol. 46, Issue 05, 055803, (May 2007) https://doi.org/10.1117/12.10.1117/1.2740768

KEYWORDS: Holograms, Digital holography, Charge-coupled devices, Point spread functions, Synthetic apertures, Resolution enhancement technologies, Digital recording, Holographic interferometry, Holography, Convolution

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Proceedings Article | 7 March 2006 Paper

Particle analysis with digital holography

Mike Adams, Thomas Kreis, Werner Jueptner

Proceedings Volume 4101, (2006) https://doi.org/10.1117/12.498399

KEYWORDS: Particles, Holograms, 3D image reconstruction, Digital holography, Holography, CCD cameras, Diffraction, Optical resolution, Phase measurement, Optical simulations

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Proceedings Article | 10 September 2005 Paper

Compression of digital holographic data using its electromagnetic field properties

Daniel Kayser, Thomas Kreis, Werner Juptner

Proceedings Volume 5908, 59080C (2005) https://doi.org/10.1117/12.616723

KEYWORDS: Holograms, Digital holography, Electromagnetism, Quantization, Holography, Speckle, Optical simulations, Image compression, Phase shifts, Data compression

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Proceedings Article | 18 August 2005 Paper

Resolution increase by aperture synthesis in digital holography

Thomas Kreis, Daniel Kayser

Proceedings Volume 5880, 58800F (2005) https://doi.org/10.1117/12.617010

KEYWORDS: Charge-coupled devices, Information technology, Digital holography, Radon, Synthetic apertures, CCD cameras, Imaging systems, Point spread functions, Holograms, Optical diagnostics

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SPIE Journal Paper | 1 September 2003 Open Access

Response to "Effect of the fill factor of CCD pixels on digital holograms: comment on the papers 'Frequency analysis of digital holography' and 'Frequency analysis of digital holography with reconstruction by convolution'"

Thomas Kreis

OE, Vol. 42, Issue 09, (September 2003) https://doi.org/10.1117/12.10.1117/1.1599844

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SPIE Journal Paper | 1 August 2002

Frequency analysis of digital holography with reconstruction by convolution

Thomas Kreis

OE, Vol. 41, Issue 08, (August 2002) https://doi.org/10.1117/12.10.1117/1.1489678

KEYWORDS: Digital holography, Holograms, 3D image reconstruction, Convolution, Charge-coupled devices, Point spread functions, Optical engineering, Digital recording, Fourier transforms, Holographic interferometry

Proceedings Article | 20 June 2002 Paper

Aperture synthesis in digital holography

Thomas Kreis, Mike Adams, Werner Jueptner

Proceedings Volume 4777, (2002) https://doi.org/10.1117/12.472205

KEYWORDS: Digital holography, Synthetic apertures, CCD cameras, Interferometry, Speckle, Charge-coupled devices, Point spread functions

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SPIE Journal Paper | 1 April 2002

Frequency analysis of digital holography

Thomas Kreis

OE, Vol. 41, Issue 04, (April 2002) https://doi.org/10.1117/12.10.1117/1.1458551

KEYWORDS: Digital holography, Charge-coupled devices, Holograms, 3D image reconstruction, Fourier transforms, Holography, Modulation transfer functions, Spatial frequencies, Digital imaging, Wave plates

SPIE Journal Paper | 1 June 2001

Hologram reconstruction using a digital micromirror device

Thomas Kreis, Petra Aswendt, Roland Hoefling

OE, Vol. 40, Issue 06, (June 2001) https://doi.org/10.1117/12.10.1117/1.1367346

KEYWORDS: Digital micromirror devices, Holograms, Digital holography, Holographic interferometry, 3D image reconstruction, Micromirrors, Holography, Charge-coupled devices, Mirrors, Binary data

Proceedings Article | 9 September 1999 Paper

Particle measurement with digital holography

Mike Adams, Thomas Kreis, Werner Jueptner

Proceedings Volume 3823, (1999) https://doi.org/10.1117/12.360996

KEYWORDS: Particles, Holograms, 3D image reconstruction, CCD cameras, Digital holography, Diffraction, Tomography, Holography, Convolution, Particle diagnostics

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Proceedings Article | 13 August 1999 Paper

Digital in-line holography in particle measurement

Thomas Kreis, Mike Adams, Werner Jueptner

Proceedings Volume 3744, (1999) https://doi.org/10.1117/12.357746

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Proceedings Article | 29 September 1998 Paper

Digital holography: methods and applications

Thomas Kreis, Werner Jueptner, Juergen Geldmacher

Proceedings Volume 3407, (1998) https://doi.org/10.1117/12.323309

KEYWORDS: Digital holography, Holograms, Particles, Radon, Charge-coupled devices, Digital filtering, 3D image reconstruction, Convolution, Holography, Fourier transforms

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Proceedings Article | 30 June 1998 Paper

Principles of digital holographic interferometry

Thomas Kreis, Werner Jueptner, Juergen Geldmacher

Proceedings Volume 3478, (1998) https://doi.org/10.1117/12.312966

KEYWORDS: Digital holography, Holograms, Holographic interferometry, Charge-coupled devices, 3D image reconstruction, Convolution, Digital filtering, Digital recording, Fourier transforms, Diffraction

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Proceedings Article | 17 September 1997 Paper

Methods of digital holography: a comparison

Thomas Kreis, Mike Adams, Werner Jueptner

Proceedings Volume 3098, (1997) https://doi.org/10.1117/12.281164

KEYWORDS: Holograms, Digital holography, Convolution, 3D image reconstruction, Holography, Diffraction, Fourier transforms, Holographic interferometry, CCD cameras, Digital recording

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Proceedings Article | 17 September 1997 Paper

Particle size and position measurement with digital holography

Mike Adams, Thomas Kreis, Werner Jueptner

Proceedings Volume 3098, (1997) https://doi.org/10.1117/12.281165

KEYWORDS: Particles, Diffraction, Digital holography, CCD cameras, Tomography, 3D image reconstruction, Holograms, Mirrors, Convolution, Image resolution

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SPIE Journal Paper | 1 August 1997

Suppression of the dc term in digital holography

Thomas Kreis, Werner Jueptner

OE, Vol. 36, Issue 08, (August 1997) https://doi.org/10.1117/12.10.1117/1.601426

KEYWORDS: Optical fibers, Segmented mirrors, Digital holography, Holograms, Wavefronts, 3D image reconstruction, Holography, Temperature metrology, Optical testing, Gamma radiation

SPIE Journal Paper | 1 April 1996

Digital recording and numerical reconstruction of holograms: reduction of the spatial frequency spectrum

Ulf Schnars, Thomas Kreis, Werner Jueptner

OE, Vol. 35, Issue 04, (April 1996) https://doi.org/10.1117/12.10.1117/1.600706

KEYWORDS: Holograms, Digital holography, Charge-coupled devices, Spatial frequencies, Holography, Digital recording, Holographic interferometry, Spatial resolution, Interferometry, Optical engineering

Proceedings Article | 14 June 1995 Paper

CCD recording and numerical reconstruction of holograms and holographic interferograms

Ulf Schnars, Thomas Kreis, Werner Jueptner

Proceedings Volume 2544, (1995) https://doi.org/10.1117/12.211890

KEYWORDS: Holograms, Digital holography, Charge-coupled devices, Holography, CCD cameras, Holographic interferometry, Spatial frequencies, 3D image reconstruction, Spatial resolution, Digital image processing

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Proceedings Article | 14 June 1995 Paper

Evaluation of holographic interference patterns by artificial neural networks

Thomas Kreis, Ralf Biedermann, Werner Jueptner

Proceedings Volume 2544, (1995) https://doi.org/10.1117/12.211861

KEYWORDS: Neurons, Holography, Neural networks, Artificial neural networks, Brain mapping, Demodulation, Computing systems, Defect detection, Holographic interferometry, Computer simulations

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Proceedings Article | 30 November 1994 Paper

Application of neural networks and knowledge-based systems for automatic identification of fault-indicating fringe patterns

Werner Jueptner, Thomas Kreis, Ulrike Mieth, Wolfgang Osten

Proceedings Volume 2342, (1994) https://doi.org/10.1117/12.195498

KEYWORDS: Neural networks, Neurons, Fringe analysis, Image processing, Holographic interferometry, Nondestructive evaluation, Holograms, Image classification, Wave plates, System identification

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Proceedings Article | 15 February 1993 Paper

Measurement of the deformation of a pressure vessel above a weld point

Werner Jueptner, Juergen Geldmacher, Thomas Bischof, Thomas Kreis

Proceedings Volume 1756, (1993) https://doi.org/10.1117/12.140791

KEYWORDS: Holography, Interferometry, Finite element methods, Holographic interferometry, Phase shifts, Protactinium, Holographic testing, Chemical elements, Environmental sensing, Temperature metrology

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Proceedings Article | 1 January 1992 Paper

Fourier transform evaluation of interference patterns: demodulation and sign ambiguity

Thomas Kreis, Werner Jueptner

Proceedings Volume 1553, (1992) https://doi.org/10.1117/12.135312

KEYWORDS: Demodulation, Phase shifts, Laser interferometry, Interferometry, Holography, Optical filters, Speckle, Heterodyning, Phase measurement, Spatial frequencies

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Proceedings Article | 1 December 1991 Paper

Evaluation of interference patterns: a comparison of methods

Thomas Kreis, Juergen Geldmacher

Proceedings Volume 1554, (1991) https://doi.org/10.1117/12.57464

KEYWORDS: Phase shifts, Heterodyning, Fourier transforms, Phase shifting, Interferometry, Holographic interferometry, Moire patterns, Metrology, Mechanics, Spatial resolution

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Showing 5 of 32 publications

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