Reiner Lenz

According to our database, Reiner Lenz authored at least 109 papers between 1986 and 2021.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2021

Definition and Estimation of Dimension in Facial Expression Space.

Masashi Shinto, Reiner Lenz, Jinhui Chao

Proceedings of the Human-Computer Interaction. Theory, Methods and Tools, 2021

2019

Dimension Estimation and Topological Manifold Learning.

Hajime Tasaki, Reiner Lenz, Jinhui Chao

Proceedings of the International Joint Conference on Neural Networks, 2019

2018

Measurement of JND Thresholds and Riemannian Geometry in Facial Expression Space.

Runa Sumiya, Reiner Lenz, Jinhui Chao

Proceedings of the Human-Computer Interaction. Theories, Methods, and Human Issues, 2018

2017

The Mehler-Fock Transform in Signal Processing.

Reiner Lenz

Entropy, 2017

Positive Signal Spaces and the Mehler-Fock Transform.

Reiner Lenz

Proceedings of the Geometric Science of Information - Third International Conference, 2017

2016

Modeling, Measuring, and Compensating Color Weak Vision.

Satoshi Oshima, Rika Mochizuki, Reiner Lenz, Jinhui Chao

IEEE Trans. Image Process., 2016

Siegel Descriptors for Image Processing.

Reiner Lenz

IEEE Signal Process. Lett., 2016

Generalized Pareto Distributions - Application to Autofocus in Automated Microscopy.

Reiner Lenz

IEEE J. Sel. Top. Signal Process., 2016

The Mehler-Fock Transform and some Applications in Texture Analysis and Color Processing.

Reiner Lenz

CoRR, 2016

Simplex-based dimension estimation of topological manifolds.

Hajime Tasaki, Reiner Lenz, Jinhui Chao

Proceedings of the 23rd International Conference on Pattern Recognition, 2016

2015

Unbiased Decoding of Biologically Motivated Visual Feature Descriptors.

Michael Felsberg, Kristoffer Öfjäll, Reiner Lenz

Frontiers Robotics AI, 2015

Modelling, Measuring and Compensating Color Weak Vision.

Satoshi Oshima, Rika Mochizuki, Reiner Lenz, Jinhui Chao

CoRR, 2015

Generalized Pareto Distributions, Image Statistics and Autofocusing in Automated Microscopy.

Reiner Lenz

Proceedings of the Geometric Science of Information - Second International Conference, 2015

2014

Saccadic Eye Movements and the Generalized Pareto Distribution.

Reiner Lenz

CoRR, 2014

Evaluation of Transfer Function Methods in Direct Volume Rendering of the Blood Vessel Lumen.

Gunnar Läthén, Stefan Lindholm, Reiner Lenz, Magnus Borga

Proceedings of the Eurographics Workshop on Visual Computing for Biology and Medicine, 2014

Generalized extreme value distributions, information geometry and sharpness functions for microscopy images.

Reiner Lenz

Proceedings of the IEEE International Conference on Acoustics, 2014

Riemann Geometric Color-Weak Compensation for Individual Observers.

Takanori Kojima, Rika Mochizuki, Reiner Lenz, Jinhui Chao

Proceedings of the Universal Access in Human-Computer Interaction. Universal Access to Information and Knowledge, 2014

Fast Segmentation of Sparse 3D Point Trajectories Using Group Theoretical Invariants.

Vasileios Zografos, Reiner Lenz, Erik Ringaby, Michael Felsberg, Klas Nordberg

Proceedings of the Computer Vision - ACCV 2014, 2014

2013

Modified Gradient Search for Level Set Based Image Segmentation.

Thord Andersson, Gunnar Läthén, Reiner Lenz, Magnus Borga

IEEE Trans. Image Process., 2013

The Weibull manifold in low-level image processing: An application to automatic image focusing.

Vasileios Zografos, Reiner Lenz, Michael Felsberg

Image Vis. Comput., 2013

Fisher Information and the Combination of RGB Channels.

Reiner Lenz, Vasileios Zografos

Proceedings of the Computational Color Imaging - 4th International Workshop, 2013

2012

Automatic Tuning of Spatially Varying Transfer Functions for Blood Vessel Visualization.

Gunnar Läthén, Stefan Lindholm, Reiner Lenz, Anders Persson, Magnus Borga

IEEE Trans. Vis. Comput. Graph., 2012

Color-Weakness Compensation Using Riemann Normal Coordinates.

Satoshi Oshima, Rika Mochizuki, Reiner Lenz, Jinhui Chao

Proceedings of the 2012 IEEE International Symposium on Multimedia, 2012

RGB Filter design using the properties of theWeibull Manifold.

Reiner Lenz, Vasileios Zografos

Proceedings of the 6th European Conference on Colour in Graphics, Imaging, and Vision, 2012

2011

Spatio-chromatic Image Content Descriptors and Their Analysis Using Extreme Value Theory.

Vasileios Zografos, Reiner Lenz

Proceedings of the Image Analysis - 17th Scandinavian Conference, 2011

Content Based Detection of Popular Images in Large Image Databases.

Martin Solli, Reiner Lenz

Proceedings of the Image Analysis - 17th Scandinavian Conference, 2011

Color Persistent Anisotropic Diffusion of Images.

Freddie Åström, Michael Felsberg, Reiner Lenz

Proceedings of the Image Analysis - 17th Scandinavian Conference, 2011

Exact Compensation of Color-Weakness with Discrimination Threshold Matching.

Rika Mochizuki, Satoshi Oshima, Reiner Lenz, Jinhui Chao

Proceedings of the Universal Access in Human-Computer Interaction. Applications and Services, 2011

2010

Iwasawa Decomposition and Computational Riemannian Geometry.

Reiner Lenz, Rika Mochizuki, Jinhui Chao

Proceedings of the 20th International Conference on Pattern Recognition, 2010

Emotion related structures in large image databases.

Martin Solli, Reiner Lenz

Proceedings of the 9th ACM International Conference on Image and Video Retrieval, 2010

Color Semantics for Image Indexing.

Martin Solli, Reiner Lenz

Proceedings of the 5th European Conference on Colour in Graphics, 2010

On Curvature of Color Spaces and its Implications.

Toko Kohei, Jinhui Chao, Reiner Lenz

Proceedings of the 5th European Conference on Colour in Graphics, 2010

2009

Octahedral Transforms for 3-D Image Processing.

Reiner Lenz, Pedro Latorre Carmona

IEEE Trans. Image Process., 2009

Hierarchical S(3)-Coding of RGB Histograms.

Reiner Lenz, Pedro Latorre Carmona

Proceedings of the Computer Vision, Imaging and Computer Graphics. Theory and Applications, 2009

Transform Coding of RGB-Histograms.

Reiner Lenz, Pedro Latorre Carmona

Proceedings of the VISAPP 2009 - Proceedings of the Fourth International Conference on Computer Vision Theory and Applications, Lisboa, Portugal, February 5-8, 2009, 2009

A Fast Optimization Method for Level Set Segmentation.

Thord Andersson, Gunnar Läthén, Reiner Lenz, Magnus Borga

Proceedings of the Image Analysis, 16th Scandinavian Conference, 2009

Momentum Based Optimization Methods for Level Set Segmentation.

Gunnar Läthén, Thord Andersson, Reiner Lenz, Magnus Borga

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2009

Color harmony for image indexing.

Martin Solli, Reiner Lenz

Proceedings of the 12th IEEE International Conference on Computer Vision Workshops, 2009

An invariant metric on the manifold of second order moments.

Reiner Lenz, Satoshi Oshima, Rika Mochizuki, Jinhui Chao

Proceedings of the 12th IEEE International Conference on Computer Vision Workshops, 2009

Color Reproduction Using Riemann Normal Coordinates.

Satoshi Oshima, Rika Mochizuki, Jinhui Chao, Reiner Lenz

Proceedings of the Computational Color Imaging, Second International Workshop, 2009

Color Based Bags-of-Emotions.

Martin Solli, Reiner Lenz

Proceedings of the Computer Analysis of Images and Patterns, 13th International Conference, 2009

2008

Lie methods for color robot vision.

Reiner Lenz

Robotica, 2008

Color Emotions for Image Classification and Retrieval.

Martin Solli, Reiner Lenz

Proceedings of the 4th European Conference on Colour in Graphics, 2008

Color-weak correction by discrimination threshold matching.

Rika Mochizuki, Tatsuya Nakamura, Jinhui Chao, Reiner Lenz

Proceedings of the 4th European Conference on Colour in Graphics, 2008

Riemann Geometry for Color Characterization and Mapping.

Jinhui Chao, Reiner Lenz, Daisuke Matsumoto, Tatsuya Nakamura

Proceedings of the 4th European Conference on Colour in Graphics, 2008

2007

Performance evaluation of dimensionality reduction techniques for multispectral images.

Pedro Latorre Carmona, Reiner Lenz

Int. J. Imaging Syst. Technol., 2007

FyFont: Find-your-Font in Large Font Databases.

Martin Solli, Reiner Lenz

Proceedings of the Image Analysis, 15th Scandinavian Conference, 2007

Affine Illumination Compensation for Multispectral Images.

Pedro Latorre Carmona, Reiner Lenz, Filiberto Pla, José Martínez Sotoca

Proceedings of the Image Analysis, 15th Scandinavian Conference, 2007

The Hyperbolic Geometry of Illumination-Induced Chromaticity Changes.

Reiner Lenz, Pedro Latorre Carmona, Peter Meer

Proceedings of the 2007 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR 2007), 2007

Crystal Vision-Applications of Point Groups in Computer Vision.

Reiner Lenz

Proceedings of the Computer Vision, 2007

2006

Lie Methods in Color Signal Processing: Illumination Effects.

Reiner Lenz, Martin Solli

Proceedings of the 18th International Conference on Pattern Recognition (ICPR 2006), 2006

Illumination Induced Changes in Image Statistics.

Thanh Hai Bui, Reiner Lenz, Martin Solli

Proceedings of the 3rd European Conference on Colour in Graphics, Imaging, and Vision, 2006

Calibrating Color Cameras using Metameric Blacks.

Ali Alsam, Reiner Lenz

Proceedings of the 3rd European Conference on Colour in Graphics, Imaging, and Vision, 2006

2005

Compact colour descriptors for colour-based image retrieval.

Linh Viet Tran, Reiner Lenz

Signal Process., 2005

Group Theoretical Structure of Spectral Spaces.

Reiner Lenz, Thanh Hai Bui, Javier Hernández-Andrés

J. Math. Imaging Vis., 2005

Color Measurements with a Consumer Digital Camera Using Spectral Estimation Techniques.

Martin Solli, Mattias Andersson, Reiner Lenz, Björn Kruse

Proceedings of the Image Analysis, 14th Scandinavian Conference, 2005

A group theoretical toolbox for color image operators.

Reiner Lenz, Thanh Hai Bui, Koichi Takase

Proceedings of the 2005 International Conference on Image Processing, 2005

2004

Computing synthetic satellite images from weather prediction data.

Björn Olsson, Anders Ynnerman, Reiner Lenz

Proceedings of the Visualization and Data Analysis 2004, 2004

Visualizing weather with synthetic high-dynamic range images.

Björn Olsson, Anders Ynnerman, Reiner Lenz

Proceedings of the Visualization and Data Analysis 2004, 2004

Recognition of Non-Negative Patterns.

Reiner Lenz, Thanh Hai Bui

Proceedings of the 17th International Conference on Pattern Recognition, 2004

Efficient Descriptors of Hue Distributions from Kernel Density Estimators and Fourier Transforms.

Linh Viet Tran, Reiner Lenz

Proceedings of the Second European Conference on Colour in Graphics, Imaging, and Vision, 2004

Time-Frequency Analysis for Multi-Channel Color Pattern Recognition.

Reiner Lenz, Javier Hernández-Andrés

Proceedings of the Second European Conference on Colour in Graphics, Imaging, and Vision, 2004

Time-Frequency Analysis of Color Spectra.

Reiner Lenz

Proceedings of the Second European Conference on Colour in Graphics, Imaging, and Vision, 2004

Group theoretical investigations of daylight spectra.

Thanh Hai Bui, Reiner Lenz, Tomas Landelius

Proceedings of the Second European Conference on Colour in Graphics, Imaging, and Vision, 2004

2003

Eigenskies: a method of visualizing weather prediction data.

Björn Olsson, Anders Ynnerman, Reiner Lenz

Proceedings of the Visualization and Data Analysis 2003, 2003

Illumination Invariants.

Reiner Lenz, Thanh Hai Bui

Proceedings of the PICS 2003: The PICS Conference, 2003

Group Theoretical Invariants in Color Image Processing.

Reiner Lenz, Linh Viet Tran, Thanh Hai Bui

Proceedings of the Eleventh Color Imaging Conference: Color Science and Engineering Systems, 2003

Geometric invariance in describing color features.

Linh Viet Tran, Reiner Lenz

Proceedings of the Color Imaging VIII: Processing, Hardcopy, and Applications, Santa Clara, 2003

One-parameter subgroups and the chromaticity properties of time-changing illumination spectra.

Reiner Lenz, Thanh Hai Bui, Javier Hernández-Andrés

Proceedings of the Color Imaging VIII: Processing, Hardcopy, and Applications, Santa Clara, 2003

2002

Two stage principal component analysis of color.

Reiner Lenz

IEEE Trans. Image Process., 2002

Spaces of Spectral Distributions and Their Natural Geometry.

Reiner Lenz

Proceedings of the First European Conference on Colour in Graphics, Imaging, and Vision, 2002

2001

Estimation of illumination characteristics.

Reiner Lenz

IEEE Trans. Image Process., 2001

A Geometric Foundation of Colorimetry.

Reiner Lenz

Proceedings of the 9th Color Imaging Conference: Color Science and Engineering: Systems, 2001

PCA-based representation of color distributions for color-based image retrieval.

Linh Viet Tran, Reiner Lenz

Proceedings of the 2001 International Conference on Image Processing, 2001

2000

Light Scattering and Ink Penetration Effects on Tone Reproduction.

Li Yang, Björn Kruse, Reiner Lenz

Proceedings of the PICS 2000: Image Processing, 2000

On Color Edge Detection.

Reiner Lenz

Proceedings of the PICS 2000: Image Processing, 2000

Lie-Theory and Dynamical Illumination Changes.

Reiner Lenz

Proceedings of the Algebraic Frames for the Perception-Action Cycle, 2000

1999

Multi-spectral Texture Segmentation Based on the Spectral Cooccurrence Matrix.

Markku Hauta-Kasari, Jussi Parkkinen, Timo Jääskeläinen, Reiner Lenz

Pattern Anal. Appl., 1999

Moment based normalization of color images.

Reiner Lenz, Linh Viet Tran, Peter Meer

Proceedings of the Third IEEE Workshop on Multimedia Signal Processing, 1999

1998

Efficient Invariant Representations.

Peter Meer, Reiner Lenz, Sudhir Ramakrishna

Int. J. Comput. Vis., 1998

Steerable filters and invariant recognition in spacetime.

Reiner Lenz

Proceedings of the 1998 IEEE International Conference on Acoustics, 1998

Unsupervised Filtering of Munsell Spectra.

Markku Hauta-Kasari, W. Wang, Satoru Toyooka, Jussi Parkkinen, Reiner Lenz

Proceedings of the Computer Vision, 1998

1997

Color image normalization through illuminant recovery.

Reiner Lenz, Peter Meer

Proceedings of the 1997 IEEE International Conference on Acoustics, 1997

Some Applications of Representaions of Lie Algebras and Lie Groups.

Reiner Lenz

Proceedings of the Algebraic Frames for the Perception-Action Cycle, 1997

1996

Digital Camera Color Calibration and Characterisation.

Udo Lenz, Reiner Lenz

Proceedings of the 4th Color and Imaging Conference, 1996

Generalized co-occurrence matrix for multispectral texture analysis.

Markku Hauta-Kasari, Jussi Parkkinen, Timo Jääskeläinen, Reiner Lenz

Proceedings of the 13th International Conference on Pattern Recognition, 1996

Rotational symmetry: the Lie group SO(3) and its representations.

Reiner Lenz, Kazuhiro Homma

Proceedings of the Proceedings 1996 International Conference on Image Processing, 1996

Fast spectral algorithms for invariant pattern recognition and image matching based on modular invariants.

Ekaterina V. Labunets, Valeri G. Labunets, M. Assonov, Reiner Lenz

Proceedings of the Proceedings 1996 International Conference on Image Processing, 1996

1995

Investigation of Receptive Fields Using Representations of the Dihedral Groups.

Reiner Lenz

J. Vis. Commun. Image Represent., 1995

Group theoretical transforms and their applications in image coding.

Reiner Lenz, Jonas Svanberg

Proceedings of the 1995 International Conference on Acoustics, 1995

1994

Experimental investigation of projection and permutation invariants.

Reiner Lenz, Peter Meer

Pattern Recognit. Lett., 1994

Point configuration invariants under simultaneous projective and permutation transformations.

Reiner Lenz, Peter Meer

Pattern Recognit., 1994

Correspondence of coplanar features through p²-invariant representations.

Peter Meer, Sudhir Ramakrishna, Reiner Lenz

Proceedings of the 12th IAPR International Conference on Pattern Recognition, 1994

1993

Unsupervised Parallel Feature Extraction from First Principles.

Mats Österberg, Reiner Lenz

Proceedings of the Advances in Neural Information Processing Systems 6, 1993

Using representations of the dihedral groups in the design of early vision filters.

Reiner Lenz

Proceedings of the IEEE International Conference on Acoustics, 1993

Correspondence of Coplanar Features Through ^p-Invariant Representations.

Peter Meer, Sudhir Ramakrishna, Reiner Lenz

Proceedings of the Applications of Invariance in Computer Vision, Second Joint European, 1993

1992

A new method for unsupervised linear feature extraction, using fourth-order moments.

Reiner Lenz, Mats Österberg

Pattern Recognit. Lett., 1992

Computing the Karhunen-Loeve Expansion with a Parallel, Unsupervised Filter System.

Reiner Lenz, Mats Österberg

Neural Comput., 1992

Modeling of the point-spread function of laser scanning microscopes using canonical transforms.

Olle Seger, Reiner Lenz

J. Vis. Commun. Image Represent., 1992

1991

On probabilistic invariance.

Reiner Lenz

Neural Networks, 1991

1990

Group invariant pattern recognition.

Reiner Lenz

Pattern Recognit., 1990

Learning filter systems.

Reiner Lenz, Mats Österberg

Proceedings of the IJCNN 1990, 1990

Grup Theoretical Methods in Image Processing

Reiner Lenz

Lecture Notes in Computer Science 413, Springer, ISBN: 3-540-52290-5, 1990

1989

Describing and recognizing group-invariant pattern classes with group-sampling.

Reiner Lenz

Pattern Recognit. Lett., 1989

A group theoretical approach to filter design.

Reiner Lenz

Proceedings of the IEEE International Conference on Acoustics, 1989

1988

Evaluation of methods for shaded surface display of CT-volumes.

Maria Magnusson, Reiner Lenz, Per-Erik Danielsson

Proceedings of the 9th International Conference on Pattern Recognition, 1988

1987

Rotation-invariant operators and scale-space filtering.

Reiner Lenz

Pattern Recognit. Lett., 1987

Optimal filters for the detection of linear patterns in 2-D and higher dimensional images.

Reiner Lenz

Pattern Recognit., 1987

1986

Display of Density Volumes.

Reiner Lenz, Björn Gudmundsson, Björn Lindskog, Per-Erik Danielsson

IEEE Computer Graphics and Applications, 1986