Prof. Andreas Uhl Profile

Prof. Andreas Uhl

at Univ Salzburg

SPIE Involvement:

Author

Publications (32)

SPIE Journal Paper | 24 September 2018 Open Access

Fisher encoding of convolutional neural network features for endoscopic image classification

Georg Wimmer, Andreas Vécsei, Michael Häfner, Andreas Uhl

JMI, Vol. 5, Issue 03, 034504, (September 2018) https://doi.org/10.1117/12.10.1117/1.JMI.5.3.034504

KEYWORDS: Databases, Endoscopy, Image classification, Computer programming, Convolutional neural networks, Feature extraction, Image filtering, Image analysis, Image segmentation, Network architectures

Read Abstract +

DOWNLOAD PAPER

SPIE Journal Paper | 21 May 2012

Robust algorithm for automated microindentation measurement in Vickers hardness testing

Michael Gadermayr, Andreas Maier, Andreas Uhl

JEI, Vol. 21, Issue 2, 021109, (May 2012) https://doi.org/10.1117/12.10.1117/1.JEI.21.2.021109

KEYWORDS: Databases, Detection and tracking algorithms, Image processing, Algorithm development, Edge detection, Image segmentation, Image processing algorithms and systems, Ray tracing, Reconstruction algorithms, Image resolution

Read Abstract +

SPIE Journal Paper | 15 May 2012

Efficient focus assessment for a computer vision-based Vickers hardness measurement system

Andreas Maier, Georg Niederbrucker, Sebastian Stenger, Andreas Uhl

JEI, Vol. 21, Issue 2, 021114, (May 2012) https://doi.org/10.1117/12.10.1117/1.JEI.21.2.021114

KEYWORDS: Image compression, Computing systems, Image processing, Detection and tracking algorithms, Cameras, Imaging systems, Convolution, Image quality, Optical inspection, Visualization

Read Abstract +

Proceedings Article | 12 July 2011 Paper

Algorithms for microindentation measurement in automated Vickers hardness testing

M. Gadermayr, A. Maier, A. Uhl

Proceedings Volume 8000, 80000M (2011) https://doi.org/10.1117/12.890894

KEYWORDS: Databases, Image processing, Hough transforms, Optical inspection, Microscopes, Visualization, Edge detection, Metals, Machine vision, Inspection

Read Abstract +

Proceedings Article | 12 July 2011 Paper

Measuring image sharpness for a computer vision-based Vickers hardness measurement system

A. Maier, G. Niederbrucker, A. Uhl

Proceedings Volume 8000, 80000N (2011) https://doi.org/10.1117/12.890895

KEYWORDS: Computing systems, Image processing, Convolution, Image analysis, Optical inspection, Hough transforms, Metals, Machine vision, 3D image reconstruction, Edge detection

Read Abstract +

Proceedings Article | 5 August 2010 Paper

JPEG2000 Part 2 wavelet packet subband structures in fingerprint recognition

Bernhard Mühlbacher, Thomas Stütz, Andreas Uhl

Proceedings Volume 7744, 77442C (2010) https://doi.org/10.1117/12.862926

KEYWORDS: Image compression, JPEG2000, Wavelets, Fingerprint recognition, Biometrics, Databases, Detection and tracking algorithms, Algorithm development, Current controlled current source, Sensors

Read Abstract +

Proceedings Article | 18 March 2008 Paper

Toward DRM for 3D geometry data

Michael Gschwandtner, Andreas Uhl

Proceedings Volume 6819, 68190V (2008) https://doi.org/10.1117/12.766424

KEYWORDS: 3D modeling, Visualization, Computer security, Optical spheres, Image encryption, 3D acquisition, 3D image processing, Distance measurement, Data modeling, Glasses

Read Abstract +

Proceedings Article | 18 March 2008 Paper

Comparison of compression algorithms' impact on iris recognition accuracy II: revisiting JPEG

Stefan Jenisch, Stefan Lukesch, Andreas Uhl

Proceedings Volume 6819, 68190M (2008) https://doi.org/10.1117/12.766360

KEYWORDS: Image compression, Iris recognition, Detection and tracking algorithms, Databases, JPEG2000, Data acquisition, Biometrics, Feature extraction, Data storage, Sensors

Read Abstract +

Proceedings Article | 18 March 2008 Paper

Toward robust watermarking of scalable video

Peter Meerwald, Andreas Uhl

Proceedings Volume 6819, 68190J (2008) https://doi.org/10.1117/12.766444

KEYWORDS: Digital watermarking, Video, Scalable video coding, Sensors, Video coding, Temporal resolution, Multimedia, Distortion, Denoising, 3D modeling

Read Abstract +

SPIE Journal Paper | 1 January 2008

Footprint-based biometric verification

Andreas Uhl, Peter Wild

JEI, Vol. 17, Issue 01, 011016, (January 2008) https://doi.org/10.1117/12.10.1117/1.2892674

KEYWORDS: Biometrics, Feature extraction, Detection and tracking algorithms, Binary data, Image acquisition, Databases, Image enhancement, Data acquisition, Sensors, Edge detection

Read Abstract +

Proceedings Article | 27 February 2007 Paper

An evaluation of lightweight JPEG2000 encryption with anisotropic wavelet packets

Dominik Engel, Andreas Uhl

Proceedings Volume 6505, 65051S (2007) https://doi.org/10.1117/12.697382

KEYWORDS: Wavelets, Image compression, JPEG2000, Visualization, Computer security, Image quality, Image encryption, Distortion, Digital watermarking, Computer programming

Read Abstract +

Proceedings Article | 27 February 2007 Paper

Experimental study on watermark interference in multiple re-watermarking

Daniel Mark, Andreas Uhl, Hartmut Wernisch

Proceedings Volume 6505, 65050N (2007) https://doi.org/10.1117/12.699167

KEYWORDS: Digital watermarking, Detection and tracking algorithms, Signal detection, Discrete wavelet transforms, Composites, Wavelets, Image visualization, Multimedia, Information security, Quantization

Read Abstract +

Proceedings Article | 26 February 2007 Paper

Hardware-based JPEG2000 video coding system

Arthur Schuchter, Andreas Uhl

Proceedings Volume 6496, 64960G (2007) https://doi.org/10.1117/12.702278

KEYWORDS: Video, Video compression, Digital signal processing, Video coding, Signal processing, Video processing, Video surveillance, Data processing, Wavelets, Computer programming

Read Abstract +

Proceedings Article | 29 January 2007 Paper

Comparison of compression algorithms' impact on fingerprint and face recognition accuracy

A. Mascher-Kampfer, Herbert Stögner, Andreas Uhl

Proceedings Volume 6508, 650810 (2007) https://doi.org/10.1117/12.699199

KEYWORDS: Image compression, JPEG2000, Detection and tracking algorithms, Fractal analysis, Facial recognition systems, Biometrics, Fingerprint recognition, Sensors, Data storage, Data acquisition

Read Abstract +

Proceedings Article | 24 June 2005 Paper

Performance analysis of block-based permutations in securing JPEG2000 and SPIHT compression

Roland Norcen, Andreas Uhl

Proceedings Volume 5960, 59602S (2005) https://doi.org/10.1117/12.631623

KEYWORDS: JPEG2000, Image encryption, Wavelets, Image compression, Computer security, Wavelet transforms, Multimedia, Data compression, Visualization, Data modeling

Read Abstract +

Proceedings Article | 22 June 2004 Paper

Analysis of a wavelet-based robust hash algorithm

Albert Meixner, Andreas Uhl

Proceedings Volume 5306, (2004) https://doi.org/10.1117/12.526932

KEYWORDS: Visualization, Wavelets, Image compression, Digital watermarking, Image quality, Image processing, Quantization, Multimedia, Digital image processing, Resistance

Read Abstract +

Proceedings Article | 23 June 2003 Paper

Performance issues in MPEG-4 VTC image coding

Roland Norcen, Andreas Uhl

Proceedings Volume 5150, (2003) https://doi.org/10.1117/12.502533

KEYWORDS: Quantization, Image compression, Discrete wavelet transforms, Wavelets, Image filtering, JPEG2000, Computer programming, Wavelet transforms, Visualization, Image quality standards

Read Abstract +

Proceedings Article | 23 June 2003 Paper

Experiments in JPEG 2000-based INTRA coding for H.26L

Roland Norcen, Andreas Uhl

Proceedings Volume 5150, (2003) https://doi.org/10.1117/12.502529

KEYWORDS: JPEG2000, Image compression, Video coding, Video, Wavelets, Standards development, Video compression, Distortion, Image processing, Binary data

Read Abstract +

Proceedings Article | 20 June 2003 Paper

Key-dependent pyramidal wavelet domains for secure watermark embedding

Werner Dietl, Peter Meerwald, Andreas Uhl

Proceedings Volume 5020, (2003) https://doi.org/10.1117/12.476817

KEYWORDS: Digital watermarking, Wavelets, JPEG2000, Image filtering, Image compression, Image quality, Information security, Resistance, Signal to noise ratio, Internet

Read Abstract +

Proceedings Article | 4 January 2002 Paper

Cache issues with JPEG2000 wavelet lifting

Peter Meerwald, Roland Norcen, Andreas Uhl

Proceedings Volume 4671, (2002) https://doi.org/10.1117/12.453105

KEYWORDS: Wavelets, JPEG2000, Image compression, Image filtering, Java, Image enhancement, Computer programming, Wavelet transforms, Estimation theory, Quantization

Read Abstract +

Proceedings Article | 20 December 2001 Paper

Approaching real-time processing for matching pursuit image coding

Roland Norcen, Peter Schneider, Andreas Uhl

Proceedings Volume 4674, (2001) https://doi.org/10.1117/12.451062

KEYWORDS: Chemical species, Image compression, Image processing, Associative arrays, Image quality, Computer programming, Video compression, Image enhancement, Data processing, Video coding

Read Abstract +

Proceedings Article | 1 August 2001 Paper

Survey of wavelet-domain watermarking algorithms

Peter Meerwald, Andreas Uhl

Proceedings Volume 4314, (2001) https://doi.org/10.1117/12.435434

KEYWORDS: Digital watermarking, Image compression, Wavelets, JPEG2000, Wavelet transforms, Distortion, Image processing, Image filtering, Quantization, Image resolution

Read Abstract +

Proceedings Article | 29 March 2001 Paper

Wavelet-packet-based video coding in parallel and distributed environments

Manfred Feil, Andreas Uhl

Proceedings Volume 4313, (2001) https://doi.org/10.1117/12.420803

KEYWORDS: Wavelets, Video coding, Video, Discrete wavelet transforms, Wavelet packet decomposition, Quantization, Video processing, Image compression, Zoom lenses, Algorithm development

Read Abstract +

Proceedings Article | 26 March 1999 Paper

Real-time image analysis using wavelets: the "a trous" algorithm on MIMD architectures

Manfred Feil, Andreas Uhl

Proceedings Volume 3645, (1999) https://doi.org/10.1117/12.343799

KEYWORDS: Linear filtering, Wavelets, Image filtering, Data communications, Fast wavelet transforms, Image analysis, Algorithm development, Convolution, Wavelet transforms, Digital filtering

Read Abstract +

Proceedings Article | 26 March 1998 Paper

Improving the efficiency of parallel fractal compression using localized domain pools

Jutta Haemmerle, Andreas Uhl

Proceedings Volume 3311, (1998) https://doi.org/10.1117/12.304666

KEYWORDS: Image compression, Fractal analysis, Image quality, Computer programming, Image processing, Array processing, Mathematics, Computer science, Computing systems, Analytical research

Read Abstract +

Proceedings Article | 9 January 1998 Paper

Predictive and direct fractal quantization of the wavelet packet domain

Matthias Reichl, Andreas Uhl

Proceedings Volume 3309, (1998) https://doi.org/10.1117/12.298316

KEYWORDS: Fractal analysis, Wavelets, Image compression, Quantization, Time-frequency analysis, Transform theory, Algorithms, Wavelet packet decomposition, Image filtering, Image resolution

Read Abstract +

Proceedings Article | 9 January 1998 Paper

Fractal motion compensation

Andreas Pommer, Christian Hufnagl, Andreas Uhl

Proceedings Volume 3309, (1998) https://doi.org/10.1117/12.298358

KEYWORDS: Fractal analysis, Quantization, Image compression, Affine motion model, Algorithm development, Information operations, Video compression, Video coding, Video, Motion estimation

Read Abstract +

SPIE Journal Paper | 1 May 1997

Generalized wavelet decompositions in image compression: arbitrary subbands and parallel algorithms

Andreas Uhl

OE, Vol. 36, Issue 05, (May 1997) https://doi.org/10.1117/12.10.1117/1.601338

KEYWORDS: Wavelets, Image compression, Image filtering, Optimization (mathematics), Signal to noise ratio, Wavelet transforms, Wavelet packet decomposition, Computer programming, Linear filtering, Optical engineering

Proceedings Article | 10 January 1997 Paper

Approaching real-time processing for fractal compression

Jutta Haemmerle, Andreas Uhl

Proceedings Volume 3024, (1997) https://doi.org/10.1117/12.263263

KEYWORDS: Image compression, Fractal analysis, Image processing, Computer programming, Feature extraction, Iron, Image quality, Image storage, Mathematics, Computer science

Read Abstract +

Proceedings Article | 10 January 1997 Paper

Issues in implementing block-based image compression techniques on parallel MIMD architectures

Andreas Uhl, Jutta Haemmerle

Proceedings Volume 3024, (1997) https://doi.org/10.1117/12.263261

KEYWORDS: Image compression, Wavelets, Fractal analysis, Image segmentation, Image processing, Computer architecture, Quantization, Computer programming, Image processing algorithms and systems, Aluminum

Read Abstract +

Proceedings Article | 22 March 1996 Paper

Adaptive wavelet image block coding

Andreas Uhl

Proceedings Volume 2762, (1996) https://doi.org/10.1117/12.235987

KEYWORDS: Image compression, Wavelets, Image filtering, Digital filtering, Image processing, Computer programming, Signal to noise ratio, Wavelet transforms, Fractal analysis, Video compression

Read Abstract +

Proceedings Article | 11 October 1994 Paper

Digital image compression using wavelets and wavelet packets based on nonstationary and inhomogeneous multiresolution analyses

Andreas Uhl

Proceedings Volume 2303, (1994) https://doi.org/10.1117/12.188787

KEYWORDS: Wavelets, Image compression, Optical filters, Optimal filtering, Linear filtering, Analytical research, Wavelet packet decomposition, Switches, Wavelet transforms, Image quality

Read Abstract +

Showing 5 of 32 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