# Pierre Vandergheynst

#### Vice-President for Education

pierre.vandergheynst@epfl.ch +41 21 69 35645 http://lts2.epfl.ch

**EPFL E E-EBM EBM**

CE 3 304 (Centre Est)

Station 1

CH-1015 Lausanne

**EPFL E E-VP VPE**

CE 3 304 (Centre Est)

Station 1

CH-1015 Lausanne

**EPFL STI IEL LTS2**

ELE 235 (Bâtiment ELE)

Station 11

CH-1015 Lausanne

**EPFL IC IC-DEC IC-DO**

ELB 114 (Bâtiment ELB)

Station 11

CH-1015 Lausanne

**EHE FOND-PART FOND-SUBVENT FCUE**

**EPFL E E-EBM CDS**

**EPFL E E-DOC CDOCT**

## Mission

Data nowadays come in overwhelming volume. In order to cope with this deluge, we explore and use the benefits of geometry and symmetry in higher dimensional data. But volume is not the only problem: data models are also increasingly complex, mixing various components. We thus use redundant dictionaries as a dimensionality reduction tool to dig out information from complicated high-dimensional datasets and multichannel signals, or to model complex behaviours in more classical signals. Finally data can also be complex because they are collected on surfaces, or more generally manifolds, or because they are not scalar-valued. We thus explore extensions of Computational Harmonic Analysis in higher dimensions, in complex geometries or for non-scalar data.

Visit our lab web pages.

## Biography

Pierre Vandergheynst received the M.S. degree in physics and the Ph.D. degree in mathematical

physics from the Université catholique de Louvain, Louvain-la-Neuve, Belgium, in 1995 and 1998, respectively. From 1998 to 2001, he was a Postdoctoral Researcher with the Signal Processing Laboratory, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland. He was Assistant Professor at EPFL (2002-2007), where he is now a Full Professor of Electrical Engineering and, by courtesy, of Computer and Communication Sciences. As of 2015, Prof. Vandergheynst serves as EPFL’s Vice-Provost for Education.

His research focuses on harmonic analysis, sparse approximations and mathematical data processing in general with applications covering signal, image and high dimensional data processing, computer vision, machine learning, data science and graph-based data processing.

He was co-Editor-in-Chief of Signal Processing (2002-2006), Associate Editor of the IEEE Transactions on Signal Processing (2007-2011), the flagship journal of the signal processing community and currently serves as Associate Editor of Computer Vision and Image Understanding and SIAM Imaging Sciences. He has been on the Technical Committee of various conferences, serves on the steering committee of the SPARS workshop and was co-General Chairman of the EUSIPCO 2008 conference.

Pierre Vandergheynst is the author or co-author of more than 70 journal papers, one monograph and several book chapters. He has received two IEEE best paper awards. Professor Vandergheynst is a laureate of the Apple 2007 ARTS award and of the 2009-2010 De Boelpaepe prize of the Royal Academy of Sciences of Belgium.

## Links

LTS2 lab home page

## Fields of expertise

data science

machine learning

computational harmonic analysis

inverse problems

compressive sensing

computer vision

## Publications

#### Recent publications (2009-present)

**Spectrally approximating large graphs with smaller graphs**. 2018-07-10. International Conference in Machine Learning (ICML), Stockholmsmässan, Sweden, July 10-15, 2018.

**Random sampling of bandlimited signals on graphs**;

*APPLIED AND COMPUTATIONAL HARMONIC ANALYSIS*. 2018. DOI : 10.1016/j.acha.2016.05.005.

**Global and local uncertainty principles for signals on graphs**;

*APSIPA TRANSACTIONS ON SIGNAL AND INFORMATION PROCESSING*. 2018. DOI : 10.1017/ATSIP.2018.2.

**Adaptive Graph-Based Total Variation for Tomographic Reconstructions**;

*IEEE SIGNAL PROCESSING LETTERS*. 2018. DOI : 10.1109/LSP.2018.2816582.

**Graph Signal Processing: Overview, Challenges and Applications**;

*Proceedings of the IEEE*. 2018.

**Fast Approximate Spectral Clustering for Dynamic Networks**. 2018. International Conference in Machine Learning (ICML), Stockholmsmässan, Sweden, July 10-15, 2018.

**Distributed Signal Processing via Chebyshev Polynomial Approximation**;

*IEEE Transactions on Signal and Information Processing over Networks*. 2018.

**Robust and Efficient Data Clustering with Signal Processing on Graphs**. Lausanne, EPFL, 2018. DOI : 10.5075/epfl-thesis-8184.

**Towards Stationary Time-Vertex Signal Processing**. 2017. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), New Orleans, LA, MAR 05-09, 2017. p. 3914-3918.

**System, device, and method for contextual knowledge retrieval and display**. WO2017187401 . 2017.

**Scalable Low-rank Matrix and Tensor Decomposition on Graphs**. Lausanne, EPFL, 2017. DOI : 10.5075/epfl-thesis-7958.

**Graph-based Methods for Visualization and Clustering**. Lausanne, EPFL, 2017. DOI : 10.5075/epfl-thesis-7952.

**Localization of Sound Sources in a Room with One Microphone**. 2017. Wavelets and Sparsity XVII, San Diego, California, USA, August 6-9, 2017. p. 1039401. DOI : 10.1117/12.2271249.

**Transient networks of spatio-temporal connectivity map communication pathways in brain functional systems**;

*Neuroimage*. 2017. DOI : 10.1016/j.neuroimage.2017.04.015.

**Compressive Embedding and Visualization using Graphs**. 2017.

**Graph-based structures in data science**. Lausanne, EPFL, 2017. DOI : 10.5075/epfl-thesis-7644.

**Structured Sequence Modeling with Graph Convolutional Recurrent Networks**. 2017.

**FMA: A Dataset For Music Analysis**. 2017. 18th International Society for Music Information Retrieval Conference, Suzhou, China, October 23-28, 2017.

**From recommender systems to spatio-temporal dynamics with network science**. Lausanne, EPFL, 2017. DOI : 10.5075/epfl-thesis-7428.

**Locating Temporal Functional Dynamics of Visual Short-Term Memory Binding using Graph Modular Dirichlet Energy**;

*Scientific reports, Nature*. 2017. DOI : 10.1038/srep42013.

**Stationary signal processing on graphs**;

*IEEE Transactions on Signal Processing*. 2017. DOI : 10.1109/Tsp.2017.2690388.

**An Algorithm Architecture Co-Design for CMOS Compressive High Dynamic Range Imaging**;

*Ieee Transactions On Computational Imaging*. 2016. DOI : 10.1109/Tci.2016.2557073.

**Towards stationary time-vertex signal processing**. 2016. International Conference on Acoustics, Speech and Signal Processing (ICASSP), New Orleans, USA.

**Geometric deep learning: going beyond Euclidean data**;

*Arxiv*. 2016. DOI : 10.1109/Msp.2017.2693418.

**Multilinear Low-Rank Tensors on Graphs & Applications**. 2016.

**Room Modal Equalisation with Electroacoustic Absorbers**. Lausanne, EPFL, 2016. DOI : 10.5075/epfl-thesis-7166.

**From data to structures**. Lausanne, EPFL, 2016. DOI : 10.5075/epfl-thesis-7302.

**Spatial hearing rendering in wireless microphone systems for binaural hearing aids**. Lausanne, EPFL, 2016. DOI : 10.5075/epfl-thesis-7221.

**Tensor low-rank and sparse light field photography**;

*Computer Vision And Image Understanding*. 2016. DOI : 10.1016/j.cviu.2015.11.004.

**Convolutional Neural Networks on Graphs with Fast Localized Spectral Filtering**. 2016. Advances in Neural Information Processing Systems 29, Barcelona, Spain, December 5-10, 2016.

**Compressive Spectral Clustering**. 2016. 33rd International Conference on Machine Learning (ICML), New York, USA, June 19-24.

**Random sampling of bandlimited signals on graphs**;

*Applied and Computational Harmonic Analysis*. 2016.

**Source Localization on Graphs via l1 Recovery and Spectral Graph Theory**. 2016. 12th IEEE Image, Video, and Multidimensional Signal Processing (IVMSP) Workshop 2016, Bordeaux, France, July 11-12, 2016.

**Low-Rank Matrices on Graphs: Generalized Recovery & Applications**. 2016.

**Localisation et identification spectrale conjointe de sources large bande par parcimonie groupée**. 2016. Congrès Français d'Acoustique, Le Mans, France, April 2016.

**Graph Based Sinogram Denoising for Tomographic Reconstructions**. 2016.

**Compressive PCA for Low-Rank Matrices on Graphs**. 2016. p. 695-710. DOI : 10.1109/Tsipn.2016.2631890.

**Principal Patterns on Graphs: Discovering Coherent Structures in Datasets**;

*IEEE Transactions on Signal and Information Processing over Networks*. 2016. DOI : 10.1109/TSIPN.2016.2524500.

**Song Recommendation with Non-Negative Matrix Factorization and Graph Total Variation**. 2016. 41st IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2016), Shanghai, China, March 20-25. p. 2439-2443.

**PCA using graph total variation**. 2016. 41st IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2016), Shanghai, China, 20-25 March 2016. p. 4668-4672.

**Accelerated Spectral Clustering Using Graph Filtering of Random Signals**. 2016. 41st IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2016), Shanghai, China. p. 4094-4098.

**Fast Robust PCA on Graphs**;

*IEEE Journal of Selected Topics in Signal Processing*. 2016. DOI : 10.1109/Jstsp.2016.2555239.

**A Multiscale Pyramid Transform for Graph Signals**;

*IEEE Transactions on Signal Processing*. 2016. DOI : 10.1109/TSP.2015.2512529.

**Learning Laplacian Matrix in Smooth Graph Signal Representations**;

*IEEE Transactions on Signal Processing*. 2016. DOI : 10.1109/TSP.2016.2602809.

**Vertex-Frequency Analysis on Graphs**;

*Applied And Computational Harmonic Analysis*. 2016. DOI : 10.1016/j.acha.2015.02.005.

**Dynamic activation patterns in brain MRI data**. 2015. 25th Colloque Gretsi, Lyon.

**Mapping resting-state dynamics on spatio-temporal graphs: a combined functional and diffusion MRI approach**. 2015. 23rd International Symposium on Magnetic Resonance in Medicine (ISMRM), Toronto.

**Structured Auto-Encoder with application to Music Genre Recognition**; 2015.

**Random Sampling of Bandlimited Signals on Graphs**; NIPS2015 Workshop on Multiresolution Methods for Large Scale Learning, Montréal, December 12th, 2015.

**Ultra-low-power ECG front-end design based on compressed sensing**. 2015. 2015 Design, Automation and Test in Europe Conference (DATE ‘15), Grenoble, France, March 9-13, 2015. p. 671-676.

**Learning class-specific descriptors for deformable shapes using localized spectral convolutional networks**;

*Computer Graphics Forum*. 2015. DOI : 10.1111/cgf.12693.

**Random sampling of bandlimited signals on graphs**. 2015.

**A Convex Solution to Disparity Estimation from Light Fields via the Primal-Dual Method**. 2015. 10th International Conference on Energy Minimization Methods in Computer Vision and Pattern Recognition (EMMCVPR), Hong Kong, PEOPLES R CHINA, JAN 13-16, 2015. p. 350-363.

**Robust Principal Component Analysis on Graphs**. 2015. International Conference on Computer Vision (ICCV) 2015, Santiago, Chile, December 11-18, 2015.

**Exploring information retrieval using image sparse representations**. Lausanne, EPFL, 2015. DOI : 10.5075/epfl-thesis-6587.

**Compressive image acquisition in modern CMOS IC design**;

*International Journal of Circuit Theory and Applications*. 2015. DOI : 10.1002/cta.1969.

**Graph-based denoising for time-varying point clouds**. 2015. 3DTV Conference 2015, Lisbon, Portugal, July 8-10, 2015.

**Structure Modeling of High Dimensional Data**. Lausanne, EPFL, 2015. DOI : 10.5075/epfl-thesis-6590.

**Laplacian Matrix Learning for Smooth Graph Signal Representation**. 2015. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Brisbane, Australia, April, 2015.

**ShapeNet: Convolutional Neural Networks on Non-Euclidean Manifolds**. 2015.

**Enhanced Matrix Completion with Manifold Learning**; International BASP Frontiers Workshop 2015, Villars-sur-Ollon, Switzerland, January 25 - 30, 2015.

**Spectrum-Adapted Tight Graph Wavelet and Vertex-Frequency Frames**;

*IEEE Transactions on Signal Processing*. 2015. DOI : 10.1109/Tsp.2015.2424203.

**Method and system for automatic objects localization**. US2014254875 ; US8749630 ; EP2386981 ; US2011279685 ; EP2386981 . 2014.

**Graph-based Image Inpainting**; 2014.

**System and method for media library navigation and recommendation**. WO2014002064 . 2014.

**Audio Steganography using Convex Demixing**; 2014.

**Matrix Completion on Graphs**; UCL - Duke Workshop on Sensing and Analysis of High-Dimensional Data (SAHD 2014), London, England, September 4-5, 2014.

**Matrix Completion on Graphs**. 2014. Neural Information Processing Systems 2014, Workshop "Out of the Box: Robustness in High Dimension", Montreal, Canada, December 8-13, 2014.

**A Convex Solution to Disparity Estimation from Light Fields via the Primal-Dual Method**. 2014. Energy Minimization Methods in Computer Vision and Pattern Recognition (EMMCVPR), Hong Kong, China.

**Robust visual tracking using feature selection**; 2014.

**Numerical experiments with MALDI Imaging data**;

*Advances In Computational Mathematics*. 2014. DOI : 10.1007/s10444-013-9325-0.

**Compressed sensing**. Lausanne, EPFL, 2014. DOI : 10.5075/epfl-thesis-6340.

**Multi-View Signal Processing and Learning on Graphs**. Lausanne, EPFL, 2014. DOI : 10.5075/epfl-thesis-6213.

**Approximate Compressed Sensing: Ultra-Low Power Biosignal Processing via Aggressive Voltage Scaling on a Hybrid Memory Multi-core Processor**. 2014. International Symposium on Low Power Electronics and Design (ISLPED 2014), La Jolla, California, USA, August 11-13, 2014. p. 40-45. DOI : 10.1145/2627369.2627629.

**Robust Image Reconstruction from Multiview Measurements**;

*Siam Journal On Imaging Sciences*. 2014. DOI : 10.1137/120902586.

**Ultra low power design of hardware efficient CS-Based compression scheme in WBSN**. 2014. CT-Energy Community Workshop, Barcelona, Spain, April 23-25, 2014.

**Hardware-Software Inexactness in Noise-aware Design of Low-Power Body Sensor Nodes**. 2014. Designing with Uncertainty - Opportunities & Challenges, York, United Kingdom, March 17-19 , 2014.

**Power-Efficient Joint Compressed Sensing of Multi-Lead ECG Signals**. 2014. 39th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2014), Florence, Italy, May 5-9 2014. p. 4409-4412.

**A Compressed Sensing Framework for Magnetic Resonance Fingerprinting**;

*Siam Journal On Imaging Sciences*. 2014. DOI : 10.1137/130947246.

**Compressed Quantitative MRI: Bloch Response Recovery through iterated projection**. 2014. IEEE International Conference on Accoustics, Speech and Signal Processing (ICASSP), Florence, Italy.

**Compact Low-Power Cortical Recording Architecture for Compressive Multichannel Data Acquisition**;

*IEEE Transactions on Biomedical Circuits and Systems*. 2014. DOI : 10.1109/TBCAS.2014.2304582.

**Reverberant Audio Source Separation via Sparse and Low-Rank Modeling**;

*IEEE Signal Processing Letters*. 2014. DOI : 10.1109/LSP.2014.2303135.

**Robust Real-time Pedestrians Detection in Urban Environments with a Network of Low Resolution Cameras**;

*Transportation Research Part C: Emerging Technologies*. 2014. DOI : 10.1016/j.trc.2013.11.019.

**Efficient compressive sampling strategies and novel reconstruction methods with applications in MRI**. Lausanne, EPFL, 2014. DOI : 10.5075/epfl-thesis-6036.

**Clustering on Multi-Layer Graphs via Subspace Analysis on Grassmann Manifolds**;

*IEEE Transactions on Signal Processing*. 2014. DOI : 10.1109/TSP.2013.2295553.

**Robust image reconstruction from multi-view measurements**;

*SIAM Journal on Imaging Sciences*. 2014. DOI : 10.1137/120902586.

**From Bits to Images: Inversion of Local Binary Descriptors**;

*IEEE Transactions on Pattern Analysis and Machine Intelligence*. 2014. DOI : 10.1109/TPAMI.2013.228.

**Method to compensate the effect of the rolling shutter effect**. US8350922 ; US2011267514 . 2013.

**Compressive Multichannel Cortical Signal Recording**. 2013. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP). p. 4305-4309.

**Joint Low-Rank And Sparse Light Field Modelling For Dense Multiview Data Compression**. 2013. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP). p. 3831-3835.

**Joint image registration and reconstruction from compressed multi-view measurements**. 2013. Conference on Wavelets and Sparsity XV. DOI : 10.1117/12.2023916.

**On the Sparsity of Wavelet Coefficients for Signals on Graphs**. 2013. Conference on Wavelets and Sparsity XV. DOI : 10.1117/12.2022850.

**Compressive Image Acquisition in Modern CMOS IC Design**;

*International Journal of Circuit Theory and Applications*. 2013. DOI : 10.1002/cta.1969.

**Clustering on Multi-Layer Graphs via Subspace Analysis on Grassmann Manifolds**. 2013. IEEE Global Conference on Signal and Information Processing, Austin, Texas, USA, December 3-5, 2013.

**The Emerging Field of Signal Processing on Graphs: Extending High-Dimensional Data Analysis to Networks and Other Irregular Domains**;

*IEEE Signal Processing Magazine*. 2013. DOI : 10.1109/Msp.2012.2235192.

**Joint image registration and reconstruction from compressed multi-view measurements**. 2013. Wavelets and Sparsity XV, August 26-29, 2013. DOI : 10.1117/12.2023916.

**Traitement du signal sur les graphes**; 2013 GRETSI Symposium, Brest, France, September 3-6, 2013.

**On the computation of directional scale-discretized wavelet transforms on the sphere**. 2013. Wavelets and Sparsity XV, San Diego, August 26-29, 2013.

**compressive source separation for hyperspectral imaging**. 2013.

**High Frame-Rate Low-Power Compressive Sampling CMOS Image Sensor Architecture**; 23rd Great Lakes Symposium on VLSI, Paris, France, May 2-3, 2013.

**Power-Efficient CMOS Image Acquisition System based on Compressive Sampling**. 2013. 56th IEEE International Midwest Symposium on Circuits and Systems, Columbus, Ohio, USA, August 4-7, 2013.

**Column-Separated Compressive Sampling Scheme for Low Power CMOS Image Sensors**. 2013. 11th IEEE International New Circuits and Systems (NEWCAS) Conference, Paris, France, June 16-19, 2013.

**Patch-based methods for variational image processing problems**. Lausanne, EPFL, 2013. DOI : 10.5075/epfl-thesis-5693.

**Sparse Binary Features for Image Classification**; 2013.

**Inference of Mobility Patterns via Spectral Graph Wavelets**. 2013. IEEE ICASSP, Vancouver, Canada, May 26-31, 2013.

**Interconnected Network of Cameras**. 2013. IS&T/SPIE Electronic Imaging, Burlingame, California, USA, February 3, 2013. DOI : 10.1117/12.2004736.

**Joint reconstruction of misaligned images from incomplete measurements for cardiac MRI**. 2013. 10th International Conference on Sampling Theory and Applications (SAMPTA), Bremen, Germany, July 2013.

**Non-convex optimization for robust multi-view imaging**; International Biomedical and Astronomical Signal Processing (BASP) Frontiers workshop, Villars-sur-Ollon, Switzerland, January, 2013.

**Multichannel Blind Deconvolution Using Low-rank and Sparse Decomposition**. 2013. SPARS, 2013.

**Image reconstruction of non-planar scenes from compressed multi-view measurements**. 2013. Workshop on Signal Processing with Adaptive Sparse Structured Representations (SPARS 2013), Lausanne, 2013.

**Compressive Multichannel Cortical Signal Recording**. 2013. 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Vancouver, Canada.

**Joint Low-rank and Sparse Light Field Modeling for Dense Multiview Data Compression**. 2013. ICASSP.

**S2LET: A code to perform fast wavelet analysis on the sphere**;

*Astronomy and Astrophysics*. 2013. DOI : 10.1051/0004-6361/201220729.

**Non-convex optimization for robust multi-view imaging**. 2013. International Biomedical and Astronomical Signal Processing (BASP) Frontiers workshop, Villars-sur-Ollon, Switzerland, January, 2013.

**Compressive Source Separation: Theory and Methods for Hyperspectral Imaging**;

*IEEE Transactions on Image Processing*. 2013. DOI : 10.1109/Tip.2013.2281405.

**Sparse Reverberant Audio Source Separation via Reweighted Analysis**;

*IEEE Transactions on Audio Speech and Language Processing*. 2013. DOI : 10.1109/Tasl.2013.2250962.

**The PANOPTIC Camera: A Plenoptic Sensor with Real-Time Omnidirectional Capability**;

*Journal of Signal Processing Systems for Signal, Image and Video Technology*. 2013. DOI : 10.1007/s11265-012-0668-4.

**Sparse image reconstruction on the sphere: implications of a new sampling theorem**;

*IEEE Transactions on Image Processing*. 2013. DOI : 10.1109/TIP.2013.2249079.

**Omnidirectional sensor array system**. US2014146132 ; WO2012056437 . 2012.

**Automatic online delineation of a multi-lead electrocardiogram bio signal**. US2014148714 ; EP2654557 ; WO2012085841 . 2012.

**Image transform for video coding**. US8300693 ; US2006159179 . 2012.

**-Hyperspectral Image Compressed Sensing Via Low-Rank And Joint-Sparse Matrix Recovery**. 2012. IEEE International Conference on Acoustics, Speech and Signal Processing. p. 2741-2744.

**Light Field Compressive Sensing In Camera Arrays**. 2012. IEEE International Conference on Acoustics, Speech and Signal Processing. p. 5413-5416.

**Analyse de données en grande dimension sur graphes et réseaux**; Journée Mathématiques et Grandes Dimensions, Polytech Lyon, December 10, 2012.

**Omnidirectional Light Field Analysis and Reconstruction**. Lausanne, EPFL, 2012. DOI : 10.5075/epfl-thesis-5483.

**Compressed Sensing of Simultaneous Low-Rank and Joint-Sparse Matrices**;

*IEEE Transactions on Information Theory*. 2012.

**Compressed Sensing of Simultaneous Low-Rank and Joint-Sparse Matrices**. 2012.

**Compressive Sampling Strategies for Multichannel Signals**. Lausanne, EPFL, 2012. DOI : 10.5075/epfl-thesis-5378.

**Robust joint reconstruction of misaligned images using semi-parametric dictionaries**; ICML Workshop on Sparsity, Dictionaries and Projections in Machine Learning and Signal Processing, Edinburgh, June 30, 2012.

**Robust joint reconstruction of misaligned images using semi-parametric dictionaries**; Workshop on Sparsity, Localization and Dictionary Learning, London, June 26, 2012.

**On localisation and uncertainty measures on graphs**; 2012.

**Beyond Bits: Reconstructing Images from Local Binary Descriptors**. 2012. 21st International Conference on Pattern Recognition (ICPR), Tsukuba Science City, Japan, November 11-15, 2012.

**Design and Exploration of Low-Power Analog to Information Conversion Based on Compressed Sensing**;

*IEEE Journal of Emerging and Selected Topics in Circuits and Systems*. 2012. DOI : 10.1109/JETCAS.2012.2220253.

**Robust joint reconstruction of misaligned images using semi-parametric dictionaries**. 2012. ICML Workshop on Sparsity, Dictionaries and Projections in Machine Learning and Signal Processing, Edinburgh, Scotland, June 30, 2012.

**A Real-time Multi-camera System with Omnidirectional Image Reconstruction Capability**; ICCP2012, Seattle, WA, USA, April 27-29, 2012.

**Foreground Silhouette Extraction robust to Sudden Changes of background Appearance**. 2012. IEEE International conference on Image Processing, Orlando, Florida, USA, September 30 - October 3, 2012. DOI : 10.1109/ICIP.2012.6467088.

**Plenoptic Spherical Sampling**. 2012. 2012 IEEE International Conference on Image Processing, Disney Coronado Springs Resort, Florida, USA, September 30, October 3, 2012.

**FREAK: Fast Retina Keypoint**. 2012. IEEE Conference on Computer Vision and Pattern Recognition, Rhode Island, Providence, USA, June 16-21, 2012.

**Light Field Compressive Sensing**. 2012. 1st International Traveling Workshop for Interacting Sparse Models and Technology, Marseille, France.

**Light Field Tensor Recovery**. 2012. IEEE International Conference on Image Processing, Orlando, Florida, USA.

**A Windowed Graph Fourier Transform**. 2012. Statistical Signal Processing Workshop, Ann Arbor, Michigan, USA, August 5-8, 2012. p. 133-136.

**JOINT TRACE/TV NORM MINIMIZATION: A NEW EFFICIENT APPROACH FOR SPECTRAL COMPRESSIVE IMAGING**. 2012. IEEE International Conference on Image Processing (ICIP 2012).

**Audio-Visual Object Extraction using Graph Cuts**;

*IEEE Transactions on Image Processing*. 2012.

**Sparse Approximation Using M-Term Pursuit and Application in Image and Video Coding**;

*IEEE Transactions on Image Processing*. 2012. DOI : 10.1109/TIP.2011.2181525.

**A Multi-Lead ECG Classification Based on Random Projection Features**. 2012. 37th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012), Kyoto, Japan, March 25-30, 2012. p. 625-628.

**Light Field Compressive Sensing in Camera Arrays**. 2012. The 37th International Conference on Acoustics, Speech, and Signal Processing, Kyoto, Japan, March 25 - 30, 2012. p. 5413-5416.

**HYPERSPECTRAL IMAGE COMPRESSED SENSING VIA LOW-RANK AND JOINT-SPARSE MATRIX RECOVERY**. 2012. The 37th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012). p. 2741-2744.

**SCOOP: A Real-Time Sparsity Driven People Localization Algorithm**;

*Journal Of Mathematical Imaging And Vision*. 2012. DOI : 10.1007/s10851-012-0405-4.

**Doubly sparse models for multiple filter estimation in sparse echoic environments**;

*Signal Processing*. 2012.

**Clustering with Multi-Layer Graphs: A Spectral Perspective**;

*IEEE Transactions on Signal Processing*. 2012. DOI : 10.1109/Tsp.2012.2212886.

**Universal and efficient compressed sensing by spread spectrum and application to realistic Fourier imaging techniques**;

*EURASIP Journal on Advances in Signal Processing*. 2012. DOI : 10.1186/1687-6180-2012-6.

**Spread spectrum magnetic resonance imaging**;

*IEEE Transactions on Medical Imaging*. 2012. DOI : 10.1109/TMI.2011.2173698.

**Structured Sparsity Models for Compressively Sensed Electrocardiogram Signals: A Comparative Study**. 2011. Biomedical Circuits and Systems Conference (BioCAS), 2011 IEEE, San Diego, CA, USA, November 10-12, 2011. DOI : 10.1109/BioCAS.2011.6107743.

**Hardware Implementation of an Omnidirectional Camera with Real-time 3D Imaging Capability**; 3DTV 2011, Antalya, Turkey, May 16-18, 2011.

**Chebyshev polynomial approximation for transductive learning on graphs**; 2011.

**Guaranteed recovery of a low-rank and joint-sparse matrix from incomplete and noisy measurements (Abstract)**. 2011. Workshop on Signal Processing with Adaptive Sparse Structured Representations (SPARS11), Edinburgh, UK, June 2011.

**Audio-driven Nonlinear Video Diffusion**;

*IEEE Transactions on Image Processing*. 2011.

**Guaranteed recovery of a low-rank and joint-sparse matrix from incomplete and noisy measurements**; SPARS11, Edinburgh, UK, June 27-29, 2011.

**On Variable Density Compressive Sampling**;

*IEEE Signal Processing Letters*. 2011. DOI : 10.1109/LSP.2011.2163712.

**Vision-Based Scene Understanding with Sparsity Promoting Priors**. Lausanne, EPFL, 2011. DOI : 10.5075/epfl-thesis-5070.

**FAST TV-L1 OPTICAL FLOW FOR INTERACTIVITY**. 2011. IEEE International Conference on Image Processing (ICIP) 2011, Brussels, Belgium, September 11-14, 2011. p. 1885-1888. DOI : 10.1109/ICIP.2011.6115836.

**Chebyshev Polynomial Approximation for Distributed Signal Processing**. 2011. IEEE International Conference on Distributed Computing in Sensor Systems (DCOSS), Barcelona, Spain, June 27-29, 2011.

**Methods for Clustering Multi-Layer Graphs in Mobile Networks**; Interdisciplinary Workshop on Information and Decision in Social Networks, MIT, Cambridge, Massachusetts, USA, May 31-June 1, 2011.

**Spread Spectrum for Universal Compressive Sampling**. 2011. 4th Workshop on Signal Processing with Adaptive Sparse Structured Representations, Edinburgh, June 27-30, 2011. p. 50.

**Implications for compressed sensing of a new sampling theorem on the sphere**. 2011. 4th Workshop on Signal Processing with Adaptive Sparse Structured Representations, Edinburgh, Scotland, 27-30 June, 2011. p. 45.

**Compressed Sensing for Real-Time Energy-Efficient ECG Compression on Wireless Body Sensor Nodes**;

*IEEE Transactions on Biomedical Engineering Bme*. 2011. DOI : 10.1109/TBME.2011.2156795.

**Semi-Supervised Learning with Spectral Graph Wavelets**. 2011. International Conference on Sampling Theory and Applications (SampTA), Singapore, May 2-6, 2011.

**Image modeling with nonlocal spectral graph wavelets**;

*Image Processing and Analysing With Graphs: Theory and Practice*; CRC Press, 2011.

**Hardware Implementation of an Omnidirectional Camera with Real-Time 3D Imaging Capability**. 2011. 3DTV-Conference 2011, Antalya, Turkey, 16-18 May. DOI : 10.1109/3DTV.2011.5877192.

**Sampling theorems and compressive sensing on the sphere**. 2011. Conference on Wavelets and Sparsity XIV, San Diego, CA, August 21-25, 2011. DOI : 10.1117/12.893481.

**Real-Time Compressed Sensing-Based Electrocardiogram Compression on Energy Constrained Wireless Body Sensors**. 2011. International Symposium on Circuits and Systems (ISCAS'11), Rio de Janeiro, Brazil, May 15 - 18, 2011. p. 125-128.

**Accelerated MR imaging with spread spectrum encoding**. 2011. International Society for Magnetic Resonance in Medicine (ISMRM) conference, Montreal, May 7-13, 2011. p. 2808.

**FULLY NON-LOCAL SUPER-RESOLUTION VIA SPECTRAL HASHING**. 2011. 2011 International Conference on Acoustics, Speech and Signal Processing (ICASSP), Prague, Czech Republic, May 22-27, 2011. p. 1137-1140.

**Audio-Visual Fusion**. Lausanne, EPFL, 2011. DOI : 10.5075/epfl-thesis-4962.

**Fast orthogonal sparse approximation algorithms over local dictionaries**;

*Signal Processing*. 2011. DOI : 10.1016/j.sigpro.2011.01.004.

**A Regularization Framework for Mobile Social Network Analysis**. 2011. International Conference on Acoustics, Speech and Signal Processing (ICASSP), Prague, Czech Republic, May 22-27, 2011.

**Unsupervised Extraction of Audio-Visual Objects**. 2011. IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP), Prague, Czech Republic, May 22-27, 2011.

**Scalable Feature Extraction for Coarse-to-Fine JPEG2000 Image Classification**;

*IEEE Transactions on Image Processing*. 2011. DOI : 10.1109/TIP.2011.2126584.

**A Variational Framework for Structure from Motion in Omnidirectional Image Sequences**;

*Journal of Mathematical Imaging and Vision*. 2011. DOI : 10.1007/s10851-011-0267-1.

**Wavelets on graphs via spectral graph theory**;

*Applied and Computational Harmonic Analysis*. 2011. DOI : 10.1016/j.acha.2010.04.005.

**Sparsity Driven People Localization with a Heterogeneous Network of Cameras**;

*Journal of Mathematical Imaging and Vision*. 2011. DOI : 10.1007/s10851-010-0258-7.

**Classification via Incoherent Subspaces**;

*Rejecta Mathematica*. 2011.

**Spread Spectrum For Compressed Sensing Techniques In Magnetic Resonance Imaging**. 2010. 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Rotterdam, NETHERLANDS, Apr 14-17, 2010. p. 756-759.

**Estimating and Learning the Trajectory of Mobile Phones**; 2010.

**Method and system for automatic objects localization**. 2010US-12/779547 . 2010.

**Multichannel Compressed Sensing via Source Separation for Hyperspectral Images**.

**Distributed Compressed Sensing of Hyperspectral Images via Blind Source Separation**. 2010. The Asilomar Conference on Signals, Systems, and Computers, PACIFIC GROVE, CA, USA, November 7-10, 2010.

**Semi-supervised Extraction of Audio-Visual Sources**; 2010.

**Stream Carving: an Adaptive Seam Carving Algorithm**. 2010. International conference on Image Processing, Honk hong, September 26-29, 2010. p. 901-904. DOI : 10.1109/ICIP.2010.5653984.

**Parallel Spread Spectrum MR Imaging**; 2010.

**An optimal first-order solver for the TV-$L_1$ optical flow problem**. 2010.

**Towards unifying diffusion and exemplar-based inpainting**. 2010. IEEE International Conference on Image Processing - ICIP 2010, Hong Kong, People's Republic of China, September 26-20, 2010. p. 417-420.

**Multichannel Compressed Sensing via Source Separation for Hyperspectral Images**. 2010. Eusipco 2010, Aalborg, Denmark, 23-27 August, 2010.

**Fast Structure from Motion for Planar Image Sequences**. 2010. 2010 European Signal Processing Conference, Aalborg, August 23-27 2010.

**Nonnegative Matrix Factorization and Spatial Covariance Model for Under-Determined Reverberant Audio Source Separation**. 2010. 10th International Conference on Information Sciences, Signal Processing and their applications (ISSPA 2010), Kuala Lumpur , Malaysia, May 10-13, 2010.

**Plenoptic based super-resolution for omnidirectional image sequences**. 2010. IEEE International Conference on Image Processing (ICIP), Hong Kong, September 26-29, 2010.

**Tracking and Structure from Motion**; 2010.

**A (256x256) Pixel 76.7mW CMOS Imager/ Compressor Based on Real-Time In-Pixel Compressive Sensing**. 2010. IEEE International Symposium on Circuits and Systems (ISCAS), Paris, France, May 30 - June 2, 2010.

**Wavelets on the Sphere**;

*Four Short Courses on Harmonic Analysis*; Boston: Birkhäuser, 2010. p. 131-174.

**Compressed Sensing: When sparsity meets sampling**;

*Optical and Digital Image Processing - Fundamentals and Applications*; Wiley-Blackwell, 2010.

**A union of incoherent spaces model for classification**. 2010. 35th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Dallas, March 14-19, 2010.

**Audio-based nonlinear video diffusion**. 2010. IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP), Dallas, March 14-19, 2010.

**Spread spectrum for compressed sensing techniques in magnetic resonance imaging**. 2010. IEEE International Symp. on Biomedical Imaging: From Nano to macro (ISBI), Rotterdam, April 14-17, 2010. p. 756-759. DOI : 10.1109/ISBI.2010.5490066.

**Spread spectrum for interferometric and magnetic resonance imaging**. 2010. IEEE International Conference on Acoustic, Speech, and Signal Processing (ICASSP), Dallas, March 14–19, 2010. p. 2802-2805. DOI : 10.1109/ICASSP.2010.5496198.

**Compressed sensing reconstruction of a string signal from interferometric observations of the cosmic microwave background**;

*Monthly Notices of the Royal Astronomical Society*. 2010. DOI : 10.1111/j.1365-2966.2009.16079.x.

**Wavelet transform on manifolds: old and new approaches**;

*Applied and Computational Harmonic Analysis*. 2010. DOI : 10.1016/j.acha.2009.10.002.

**Blind Audio-Visual Source Separation based on Sparse Redundant Representations**;

*IEEE Transactions on Multimedia*. 2010. DOI : 10.1109/TMM.2010.2050650.

**Cascade of Descriptors to Detect and Track Objects Across Any Network of Cameras**;

*Computer Vision and Image Understanding*. 2010. DOI : 10.1016/j.cviu.2010.01.004.

**Method for spatially scalable video coding**. US7616824 ; US2006120614 . 2009.

**CMOS Compressed Imaging by Random Convolution**. 2009. 34th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Taipei, Taiwan, April 19-24. p. 1113-1116. DOI : 10.1109/ICASSP.2009.4959783.

**CMOS Compressed Imaging by Random Convolutions**. 2009. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Taipei, Taiwan, April 19-24, 2009.

**A Variational Framework for Structure from Motion in Omnidirectional Image Sequences**. 2009.

**Distributed Compressed Sensing for Sensor Networks Using Thresholding**. 2009. Wavelet XIII, SPIE, San Diego, CA, USA, August 2-6, 2009. p. 7446-50.

**Sparsity-driven People Localization Algorithm: Evaluation in Crowded Scenes Environments**. 2009. IEEE International Workshop on Performance Evaluation of Tracking and Surveillance, Snowbird, Utah, December 7-10, 2009. DOI : 10.1109/PETS-WINTER.2009.5399487.

**Compressed sensing for radio interferometry: prior-enhanced Basis Pursuit imaging techniques**. 2009. SPARS'09, Saint-Malo, April 06-09, 2009.

**Compressed sensing for radio interferometry: spread spectrum imaging techniques**. 2009. WAVELET XIII, SPIE09, San Diego, August 02-06, 2009. DOI : 10.1117/12.824713.

**Spread spectrum for imaging techniques in radio interferometry**;

*Monthly Notices of the Royal Astronomical Society*. 2009. DOI : 10.1111/j.1365-2966.2009.15519.x.

**A Master-Slave Approach to Detect and Match Objects Across Several Uncalibrated Moving Cameras**. 2009.

**CMOS Compressed Imaging by Random Convolution**; IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Taipei, Taiwan, 19 -24 April 2009.

**Sport Players Detection and Tracking With a Mixed Network of Planar and Omnidirectional Cameras**. 2009. Third ACM/IEEE International Conference on Distributed Smart Cameras, Como, 30 August - 2 September, 2009. DOI : 10.1109/ICDSC.2009.5289406.

**Cosmic string detection from interferometric data of the microwave background radiation**; 2009.

**A Sparsity Constrained Inverse Problem to Locate People in a Network of Cameras**. 2009. 16th International Conference on Digital Signal Processing, Aegean island of Santorini, Greece, July 5-7, 2009. DOI : 10.1109/ICDSP.2009.5201223.

**TV-Regularized Generation of Planar Images from Omnicams**. 2009. IEEE International Conference on Image Processing - ICIP 2009, Cairo, Egypt, November 7-11, 2009.

**Optical Flow and Depth from Motion for Omnidirectional Images using a TV-L1 Variational Framework on Graphs**. 2009. IEEE International Conference on Image Processing - ICIP 2009, Cairo, Egypt, November 7-11, 2009.

**The Panoptic Camera - Plenoptic interpolation in an omnidirectional polydioptric camera**; 2009.

**Sparsity & [and] dictionaries - algorithms & [and] design**. Lausanne, EPFL, 2009. DOI : 10.5075/epfl-thesis-4349.

**Dictionary learning for the sparse modelling of atrial fibrillation in ECG signals**. 2009. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP09), Taipeh, 2009.

**A low complexity orthogonal matching pursuit for sparse signal approximation with shift-invariant dictionaries**. 2009. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP09), Taipei, Taiwan, 2009.

**Compressed sensing imaging techniques for radio interferometry**;

*Monthly Notices of the Royal Astronomical Society*. 2009. DOI : 10.1111/j.1365-2966.2009.14665.x.

**Wavelet domain Bayesian denoising of string signal in the cosmic microwave background**;

*Mon. Not. R. Astron. Soc.*. 2009. DOI : 10.1111/j.1365-2966.2009.14978.x.

**Compressive Sampling of Pulse Trains : Spread the Spectrum !**. 2009. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Taipei, Taiwan, 19 -24 April 2009.

**CMOS Compressed Imaging by Random Convolution**. 2009. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Taipei, Taiwan, 19 -24 April 2009.

**Learning bimodal structure in audio-visual data**;

*IEEE Transactions on Neural Networks*. 2009. DOI : 10.1109/TNN.2009.2032182.

**Geometric Video Approximation Using Weighted Matching Pursuit**;

*IEEE Transactions on Image Processing*. 2009. DOI : 10.1109/TIP.2009.2021315.

## Teaching & PhD

#### Teaching

- Electrical and Electronics Engineering,

#### PhD Programs

- Doctoral program in computer and communication sciences
- Doctoral Program in Electrical Engineering

#### PhD Students

Defferrard Michaël

Grimaldi Vincent Pierre Olivier

Laurence Thomas

Miz Volodymyr

Peic Tukuljac Helena

Pham Vu Thach

Pitas Konstantinos

Schoenenberger Yann Mikaël

Seo Youngjoo

Sergeev Stanislav

Volery Maxime

#### Past PhD Students

Alahi Alexandre Massoud ...Bagnato Luigi ...

Benzi Kirell Maël ...

Bogdanova Vandergheynst Iva ...

Courtois Gilles André ...

D'Angelo Emmanuel ...

Dimitrijevic Ana ...

Divorra Escoda Oscar ...

Dong Xiaowen ...

Figueras Ventura Rosa Maria ...

Golbabaee Mohammad ...

Granai Lorenzo ...

Guicquéro William ...

Hosseini Kamal Mahdad ...

Jost Philippe ...

Kalofolias Vasilis ...

Llagostera Casanovas Anna ...

Mamaghanian Hossein ...

Martin Lionel Jérémie ...

Monaci Gianluca ...

Paratte Johann ...

Peotta Lorenzo ...

Perraudin Nathanaël ...

Puy Gilles ...

Rahmoune Adel ...

Rivet Etienne Thierry Jean-Luc ...

Schnass Karin ...

Shahid Nauman ...

## Courses

#### A network tour of data science

Doctoral Program in Electrical Engineering, 2018-2019,*language*: english

MINEUR, 2018-2019, Autumn semester,

*language*: english

Management of Technology and Entrepreneurship, 2018-2019, Master semester 1,

*language*: english

Management of Technology and Entrepreneurship, 2018-2019, Master semester 3,

*language*: english

Section of Communication Systems, 2018-2019, Master semester 1,

*language*: english

Section of Communication Systems, 2018-2019, Master semester 3,

*language*: english

Section of Electrical and Electronical Engineering, 2018-2019, Master semester 1,

*language*: english

Section of Electrical and Electronical Engineering, 2018-2019, Master semester 3,

*language*: english

Section of Microtechnics, 2018-2019, Master semester 1,

*language*: english

Section of Microtechnics, 2018-2019, Master semester 3,

*language*: english

#### Signals and systems II (for MT)

This course is an introduction to the theory of discrete linear time invariant systems. Their properties and fundamental characteristics are discussed as well as the fundamental tools that are used to study and design them (Fourier transform, Z transform)...

Section of Microtechnics, 2018-2019, Bachelor semester 6,*language*: french

Section of Microtechnics, 2018-2019, Spring semester,

*language*: french

#### Signals and systems II (for SV)

This course is an introduction to the theory of discrete linear time invariant systems. Their properties and fundamental characteristics are discussed as well as the fundamental tools that are used to study and design them (Fourier transform, Z transform)...

Section of Life Sciences Engineering, 2018-2019, Bachelor semester 6,*language*: french