Mr. John B. McDonald Profile

John B. McDonald

at National Univ of Ireland/Maynooth

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 25 April 2008 Paper

A comparison of wavelet analysis techniques in digital holograms

Karen Molony, Jonathan Maycock, John McDonald, Bryan Hennelly, Thomas Naughton

Proceedings Volume 6994, 699412 (2008) https://doi.org/10.1117/12.782786

KEYWORDS: Speckle, Wavelets, Digital holography, Holograms, Digital filtering, Stationary wavelet transform, Discrete wavelet transforms, Denoising, 3D image reconstruction, Wavelet transforms

Read Abstract +

Proceedings Article | 25 April 2008 Paper

Segmentation of macroscopic object digital holographic reconstructions using extracted depth information

C. McElhinney, B. Hennelly, J. McDonald, T. Naughton

Proceedings Volume 7000, 700003 (2008) https://doi.org/10.1117/12.782776

KEYWORDS: Image segmentation, Digital holography, Holograms, Reconstruction algorithms, Holography, Image processing, Algorithm development, Speckle, Image processing algorithms and systems, Cameras

Read Abstract +

Proceedings Article | 24 September 2007 Paper

Speckle reduction from digital holograms by simulating temporal incoherence

B. Hennelly, D. Kelly, J. Maycock, T. Naughton, J. McDonald

Proceedings Volume 6696, 66961I (2007) https://doi.org/10.1117/12.739492

KEYWORDS: Speckle, Digital holography, Holograms, 3D image reconstruction, Charge-coupled devices, Optical simulations, Fourier transforms, Holography, Computer simulations, Imaging systems

Read Abstract +

Proceedings Article | 30 August 2006 Paper

Analysis of partially occluded objects encoded in digital holograms using the Wigner distribution function

B. Hennelly, J. Maycock, C. Mc Elhinney, T. Naughton, J. McDonald, B. Javidi

Proceedings Volume 6311, 63110M (2006) https://doi.org/10.1117/12.682849

KEYWORDS: Wigner distribution functions, Digital holography, Holograms, Charge-coupled devices, Opacity, Cameras, Wave propagation, Optical simulations, Wavefronts, Convolution

Read Abstract +

Proceedings Article | 30 August 2006 Paper

Wigner distribution function and digital holography

Bryan Hennelly, Thomas Naughton, John McDonald

Proceedings Volume 6311, 63110L (2006) https://doi.org/10.1117/12.682721

KEYWORDS: Wigner distribution functions, Charge-coupled devices, Holograms, 3D image reconstruction, Digital holography, Holography, Mirrors, Fourier transforms, Speckle, Image quality

Read Abstract +

Proceedings Article | 30 August 2006 Paper

A method for superresolution in digital holography

Bryan Hennelly, Thomas Naughton, John McDonald, Yann Frauel, Bahram Javidi

Proceedings Volume 6311, 63110J (2006) https://doi.org/10.1117/12.682719

KEYWORDS: Holograms, Wigner distribution functions, Charge-coupled devices, Digital holography, Spatial frequencies, Super resolution, 3D image reconstruction, Holography, Fourier transforms, Mirrors

Read Abstract +

Proceedings Article | 25 April 2006 Paper

Reconstruction of partially occluded objects using digital holograms

J. Maycock, C. Mc Elhinney, B. Hennelly, T. Naughton, J. McDonald, B. Javidi

Proceedings Volume 6187, 61870V (2006) https://doi.org/10.1117/12.662828

KEYWORDS: Digital holography, Holograms, Cameras, Holography, Reconstruction algorithms, Imaging systems, Opacity, Charge-coupled devices, Optical simulations, 3D image processing

Read Abstract +

Proceedings Article | 25 April 2006 Paper

Speckle reduction in digital holography using independent component analysis

Jonathan Maycock, Conor McElhinney, John McDonald, Thomas Naughton, Bryan Hennelly, Bahram Javidi

Proceedings Volume 6187, 618716 (2006) https://doi.org/10.1117/12.662798

KEYWORDS: Independent component analysis, Speckle, Digital holography, Holograms, Speckle pattern, Interference (communication), Digital filtering, Principal component analysis, Image compression, Optical simulations

Read Abstract +

Proceedings Article | 16 November 2005 Paper

Holographic image processing of three-dimensional objects

Jonathan Maycock, Conor Mc Elhinney, Alison Shortt, Thomas Naughton, John McDonald, Brian Hennelly, Unnikrishnan Gopinathan, David Monaghan, John Sheridan, Bahram Javidi

Proceedings Volume 6016, 60160K (2005) https://doi.org/10.1117/12.632787

KEYWORDS: Holograms, Digital holography, Quantization, Image encryption, 3D image processing, Independent component analysis, Spatial light modulators, Speckle, Holography, Image processing

Read Abstract +

Proceedings Article | 10 September 2005 Paper

Extraction of three-dimensional shape information from a digital hologram

C. Mc Elhinney, J. Maycock, T. Naughton, J. McDonald, B. Javidi

Proceedings Volume 5908, 590805 (2005) https://doi.org/10.1117/12.617503

KEYWORDS: Holograms, Digital holography, 3D image processing, Digital filtering, 3D metrology, Holography, CCD image sensors, Cameras, Interferometry, Image processing

Read Abstract +

Proceedings Article | 10 September 2005 Paper

Independent component analysis applied to digital holograms of three-dimensional objects

Jonathan Maycock, Conor Mc Elhinney, John McDonald, Thomas Naughton, Bahram Javidi

Proceedings Volume 5908, 590806 (2005) https://doi.org/10.1117/12.617441

KEYWORDS: Independent component analysis, Digital holography, Speckle, Holograms, Digital filtering, Interference (communication), Image compression, Principal component analysis, 3D image processing, Electronic filtering

Read Abstract +

Proceedings Article | 1 June 2005 Paper

Three-dimensional scene reconstruction using digital holograms

Conor McElhinney, Jonathan Maycock, John McDonald, Thomas Naughton, Bahram Javidi

Proceedings Volume 5823, (2005) https://doi.org/10.1117/12.605231

KEYWORDS: Digital holography, Holograms, 3D image processing, Cameras, Wavefronts, 3D vision, 3D modeling, Machine vision, Computer vision technology, Holography

Read Abstract +

Proceedings Article | 1 June 2005 Paper

Holistic facial expression classification

John Ghent, J. McDonald

Proceedings Volume 5823, (2005) https://doi.org/10.1117/12.605074

KEYWORDS: Statistical analysis, Principal component analysis, Shape analysis, Visual process modeling, Machine learning, Eye models, Databases, Machine vision, Computer vision technology, Facial recognition systems

Read Abstract +

Proceedings Article | 30 November 2004 Paper

Three-dimensional image sensing, encryption, compression, and transmission using digital holography

Thomas Naughton, Enrique Tajahuerce, John McDonald, Bahram Javidi

Proceedings Volume 5611, (2004) https://doi.org/10.1117/12.580685

KEYWORDS: Digital holography, Holograms, Quantization, 3D image processing, Image compression, Image encryption, Digital imaging, 3D vision, 3D image reconstruction, Reconstruction algorithms

Read Abstract +

Showing 5 of 14 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years