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Sylvain Paris – Researcher (Reconstruction from image sequences and recovery of the 3D geometry)

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Research Interest

My work mainly focuses on extracting information from photographs and videos. My goal is to obtain useful data for Computer Graphics, i.e. suitable for rendering new images. During my PhDwith François Sillion at INRIA, I developed new solutions to image-based modeling, mainly shape reconstruction from image sequences and recovery of the 3D geometry of hair.

Since my post-doc at MIT with Frédo Durand, I am also interested in computational photography. I am looking at signal-processing techniques to apply them to digital photographs and videos. Compared to traditional film photography, this unveils a large spectrum of possibilities to modify and enhance the picture content. Conversely, photography-related applications raise specific issues such as user interaction and photorealism, and cast a new light upon known signal-processing methods.

I am now a researcher at Adobe, working in the Advanced Technology Labs where I pursue my research on computational photography and image-based modeling.

Internship

I am always happy to work with interns. If you are interested in doing an internship with me, here is what you need to know:

  • These are research internships and most interns are graduate students. If you are not in grad school, make sure to include enough detail.
  • I am collaborating with people who share the same interests as me. This page should help you figure out this point.
  • Tell me what you have done in the past in terms of research, and what you would like to do during your internship.
  • Most interns come for three months during the summer but other options are possible.
  • Contact me at least four months in advance.
  • The number of slots is limited. Unfortunately, we cannot accept everyone.
  • I do not reply to generic requests. Make sure that your message shows that you know who I am.

So far, I have been lucky to work with the following interns:

Publications

The main publications are highlighted with a thumbnail. Boxed publications without thumbnail are important milestones that have been extended in a journal paper. I also include a few moredetailed talks, and a list of software products inspired from my research and to which I have contributed.

I have been lucky to co-author papers with the following people (by alphabetical order): Andrew Adams, Frederick Aliaga, Saman AmarasingheMathieu AubryShai AvidanSoonmin BaeJiamin BaiNicolas BonneelTamy BoubekeurAdrien BousseauHector BriceñoBert Buchholz,Vladimir BychkovskyEric ChanWill ChangJiawen Chen, Simon Chen, Matthieu CunziGilles DebunneGeorge DrettakisFrédo DurandElmar EisemannNoura FarajBill FreemanJean-Dominique GascuelWolfgang HeidrichBerthold HornEugene HsuWojciech JaroszWon-Ki JeongKimo Johnson, Steve Johnson, Jan KautzEric KeePushmeet KohliPierre KornprobstOleg KozhushnyanMarc LevoyMaxime LhuillierHao LiLinjie LuoWojciech MatusikTom Mertens,Mark PaulyHanspeter PfisterJovan PopovićLong Quan, Craig Scull, Jonathan Ragan-Kelley,Szymon RusinkiewiczFrançois SillionSara SuMichael TaoJoëlle ThollotJack TumblinMichiel van de PanneJue WangRobert WangThibaut WeiseInsu YuGang ZengMatthias Zwicker.

Access by year: In Press20122011201020092008200720062005200420032002.

Somewhere else: DBLPGoogle Scholar.

In Press

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Error-tolerant Image Compositing
Michael W. Tao, Micah K. Johnson, and Sylvain Paris
International Journal of Computer Vision (IJCV)

2012

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Decoupling Algorithms from Schedules for Easy Optimization of Image Processing Pipelines
Jonathan Ragan-Kelley, Andrew Adams, Sylvain Paris, Marc Levoy, Saman Amarasinghe, and Frédo Durand
ACM Transactions on Graphics (Proceedings of the ACM SIGGRAPH’12 conference)

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Multi-view Hair Capture using Orientation Fields
Linjie Luo, Hao Li, Sylvain Paris, Thibaut Weise, Mark Pauly, and Szymon Rusinkiewicz
Proceedings of the conference on Computer Vision and Pattern Recognition (CVPR’12)

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SimpleFlow: A Non-iterative, Sublinear Optical Flow Algorithm
Michael Tao, Jiamin Bai, Pushmeet Kohli, and Sylvain Paris
Computer Graphics Forum (Proceedings of the Eurographics’12 conference)

2011

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Displacement Interpolation Using Lagrangian Mass Transport
Nicolas Bonneel, Michiel van de Panne, Sylvain Paris, and Wolfgang Heidrich
ACM Transactions on Graphics (Proceedings of the ACM SIGGRAPH Asia’11 conference)

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6D Hands: Markerless Hand Tracking for Computer Aided Design
Robert Wang, Sylvain Paris, and Jovan Popović
Proceedings of the ACM Symposium on User Interface Software and Technology (UIST’11)

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Practical Color-Based Motion Capture
Robert Wang, Sylvain Paris, and Jovan Popović
Proceedings of the Symposium on Computer Animation (SCA’11)

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Spatio-temporal Analysis for Parameterizing Animated Lines
Bert Buchholz, Noura Faraj, Sylvain Paris, Elmar Eisemann, and Tamy Boubekeur
Proceedings of the International Symposium on Non-Photorealistic Animation and Rendering (NPAR’11)
  • Our work will be also presented as a SIGGRAPH talk (formerly “sketch”).

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Local Laplacian Filters: Edge-aware Image Processing with a Laplacian Pyramid
Sylvain Paris, Samuel W. Hasinoff, and Jan Kautz
ACM Transactions on Graphics (Proceedings of the ACM SIGGRAPH’11 conference)
  • See our project page for additional results and source code.
  • Hindsight: The fact that are our filters produce faithful low-resolution previews is related to our work on display-aware image editing.
  • Our tech report further studies the properties of local Laplacian filters and describes a couple of extensions, including a faster algorithm.

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Learning Photographic Global Tonal Adjustments with a Database of Input / Output Image Pairs
Vladimir Bychkovsky, Sylvain Paris, Eric Chan, and Frédo Durand
Proceedings of the conference on Computer Vision and Pattern Recognition (CVPR’11)

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Blur Kernel Estimation using the Radon Transform
Taeg Sang Cho, Sylvain Paris, Berthold K. P. Horn, and William T. Freeman
Proceedings of the conference on Computer Vision and Pattern Recognition (CVPR’11)

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Modeling and Removing Spatially-Varying Optical Blur
Eric Kee, Sylvain Paris, Simon Chen, and Jue Wang
Proceedings of the International Conference on Computional Photography (ICCP’11)

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Display-aware Image Editing
Won-Ki Jeong, Micah K. Johnson, Insu Yu, Jan Kautz, Hanspeter Pfister, and Sylvain Paris
Proceedings of the International Conference on Computional Photography (ICCP’11)

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The Video Mesh: A Data Structure for Image-based Three-dimensional Video Editing
Jiawen Chen, Sylvain Paris, Jue Wang, Wojciech Matusik, Michael Cohen, and Frédo Durand
Proceedings of the International Conference on Computional Photography (ICCP’11)
  • This is a revised version of our tech report.
  • More results, including videos, are available on the project page.

Fast and Robust Pyramid-based Image Processing. Mathieu Aubry, Sylvain Paris, Samuel W. Hasinoff, Jan Kautz, and Frédo Durand. MIT technical report, November 2011 (MIT-CSAIL-TR-2011-049). pdf (24.3MB) | official webpage This tech report extends our previous work on local Laplacian filters.

Dynamic Hair Capture. Linjie Luo, Hao Li, Thibaut Weise, Sylvain Paris, Mark Pauly, and Szymon Rusinkiewicz. Princeton University technical report (08/2011). pdf (15MB) | project webpage

Displacement Interpolation Using Lagrangian Mass Transport. Nicolas Bonneel, Michiel van de Panne, Sylvain Paris, and Wolfgang Heidrich. UBC technical report (TR-2011-02). pdf (15MB) | project webpage A revised version appears at SIGGRAPH Asia’11.

2010

Error-tolerant Image Compositing
Michael W. Tao, Micah K. Johnson, and Sylvain Paris
Processing of the European Conference on Computer Vision (ECCV’10)
  • More details on the project webpage.
  • We have an extended version of this article to appear in IJCV. In particular, we added an extended validation and improved the technical explanation.

Practical Color-Based Motion Capture. Robert Wang, Sylvain Paris, and Jovan Popović. MIT technical report (MIT-CSAIL-TR-2010-044). pdf (16MB) A revised version appears at SCA’11.

2009

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Bilateral Filtering: Theory and Applications
Sylvain Paris, Pierre Kornprobst, Jack Tumblin, and Frédo Durand
Foundations and Trends in Computer Graphics and Vision
  • This survey is an extended version of our course. Supplemental material including code is available on the course webpage.

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User-assisted Intrinsic Images
Adrien Bousseau, Sylvain Paris, and Frédo Durand
ACM Transactions on Graphics (Proceedings of the ACM SIGGRAPH Asia’09 conference)

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Single Photo Estimation of Hair Appearance
Nicolas Bonneel, Sylvain Paris, Michiel van de Panne, Frédo Durand, George Drettakis
Computer Graphics Forum (Proceedings of the Eurographics Symposium on Rendering ’09)
  • We provide our input photos, the retrieved parameters, and the corresponding renderings in supplemental material.

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A Visibility Algorithm for Converting 3D Meshes into Editable 2D Vector Graphics
Elmar Eisemann, Sylvain Paris, and Frédo Durand
ACM Transactions on Graphics (Proceedings of the ACM SIGGRAPH’09 conference)

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QuickSelect: History-Based Selection Expansion
Sara Su, Sylvain Paris, and Frédo Durand
Proceedings of the Graphics Interface conference (GI’09)

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A Fast Approximation of the Bilateral Filter using a Signal Processing Approach
Sylvain Paris and Frédo Durand
International Journal of Computer Vision (IJCV’09)
  • Our fast bilateral filter webpage provides details, code, data, and more.
  • This article extends our conference paper and is a revised version of our technical report. Compared to the ECCV article, it includes new discussions, comparisons, and validations, and extensions to cross bilateral filtering and color images.
  • Our SIGGRAPH’07 paper builds upon this article and shows that the higher-dimensional image representation that we introduce can be turned into a data structure useful a variety of other edge-aware tools. We also show that the corresponding algorithms, including the bilateral filter, are highly parallel and can be implemented on graphics hardware.
  • All the images shown in the figures are available as supplemental material (23MB).
  • The original publication is available at www.springerlink.com.

The Video Mesh: A Data Structure for Image-based Video Editing. Jiawen Chen, Sylvain Paris, Jue Wang, Wojciech Matusik, Michael Cohen, and Frédo Durand. MIT technical report (MIT-CSAIL-TR-2009-062).A revised version appears at ICCP’11. pdf (9MB) | project page

Interactive Visual Histories for Vector Graphics. Sara L. Su, Sylvain Paris, Frederick Aliaga, Craig Scull, Steve Johnson, and Frédo Durand. MIT technical report, June 2009 (MIT-CSAIL-TR-2009-031). pdf (1.9MB) |project page

A Perceptually Motivated Method to Control Reconstruction Errors in Gradient-based Image Compositing. Sylvain Paris. Adobe technical report, March 2009. pdf (1.7MB) A revised version appears at ECCV’10.

2008

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Edge-preserving Smoothing and Mean-shift Segmentation of Video Streams
Sylvain Paris
Processing of the European Conference on Computer Vision (ECCV’08)

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Hair Photobooth: Geometric and Photometric Acquisition of Real Hairstyles
Sylvain Paris, Will Chang, Wojciech Jarosz, Oleg Kozhushnyan, Wojciech Matusik, Matthias Zwicker, and Frédo Durand
ACM Transactions on Graphics (Proceedings of the ACM SIGGRAPH’08 conference)
  • The paper webpage provides additional material.
  • This work extends our SIGGRAPH’04 article in many ways: a more accurate and more complete setup, an inference method to retrieve the hidden geometry, a model-driven image-based rendering technique,…

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Light Mixture Estimation for Spatially Varying White Balance
Eugene Hsu, Tom Mertens, Sylvain Paris, Shai Avidan, and Frédo Durand
ACM Transactions on Graphics (Proceedings of the ACM SIGGRAPH’08 conference)

2007

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Real-time Edge-Aware Image Processing with the Bilateral Grid
Jiawen Chen, Sylvain Paris, and Frédo Durand
ACM Transactions on Graphics (Proceedings of the ACM SIGGRAPH’07 conference)
  • This article focuses on an image representation inspired from our ECCV’06 paper. This data structure can be used for a variety of image processing tools such as bilateral filtering, scribble interpolation, edge-preserving painting, and contrast enhancement. The corresponding algorithms can be efficiently parallelized on graphics hardware.
  • More details on the bilateral grid webpage.
  • Hindsight: My paper on video streams further motivates the use of the exponential decay in Section 3.5.

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A Topological Approach to Hierarchical Segmentation using Mean Shift
Sylvain Paris and Frédo Durand
Proceedings of the IEEE conference on Computer Vision and Pattern Recognition (CVPR’07)
  • C++ code is available.
  • We tested our algorithm on videos with 6 seconds of the pylon sequence (from frame 80 to frame 229).
  • In the supplemental material (tar.gzzip), we provide results on high-resolution images and on the Berkeley benchmark.
  • My paper on video streams extends this work to real-time video segmentation.
  • Hindsight: Segmentations done on-the-fly are actually similar to off-line segmentations only at grid resolution. Differences may exist at pixel resolution. Thanks to Varsha Hedau from UIUC for pointing out differences.

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Accurate and Scalable Surface Representation and Reconstruction from Images
Gang Zeng, Sylvain Paris, Long Quan, and François Sillion
IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI’07)
  • This article extends our ECCV’04 paper and our ICCV’05 paper. A previous version appeared as a technical report.
  • Our patchwork approach is demonstrated to have optimal spatial and temporal complexities in terms of object area and resolution. We also formally study the link between the proposed local optimization and existing global techniques (weak membrane, level set, and graph cut).
  • New results illustrate various aspects: influence of the parameters, differences between propagation (presented at ECCV’04) and carving (ICCV’05), and failure cases.

2006

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Two-scale Tone Management for Photographic Look
Soonmin Bae, Sylvain Paris, and Frédo Durand
ACM Transactions on Graphics (Proceedings of the ACM SIGGRAPH’06 conference)
  • More details on the project webpage.
  • To achieve interactive performance, we use the fast bilateral filter described in our ECCV’06 article.
  • Dani Lischinski and colleagues describe a complementary approach based on user interaction.
  • Hindsight: Our ICCP’11 paper provides a user study that confirms the relationship between image histograms and photo editing.

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A Surface Reconstruction Method Using Global Graph Cut Optimization
Sylvain Paris, François Sillion, and Long Quan
International Journal on Computer Vision (IJCV’06)

A Fast Approximation of the Bilateral Filter using a Signal Processing Approach. Sylvain Paris and Frédo Durand. European Conference on Computer Vision (ECCV’06). pdf (3MB) | ps (9.5MB) | ppt (2.7MB)

  • Our fast bilateral filter webpage provides details, code, data, and more.
  • We have extended this article in an IJCV article that includes new discussions, comparisons, and validations, and extensions to cross bilateral filtering and color images.

A Fast Approximation of the Bilateral Filter using a Signal Processing Approach. Sylvain Paris and Frédo Durand. MIT technical report 2006 (MIT-CSAIL-TR-2006-073). A revised version appears in IJCV. fast bilateral filter webpage | high-res. pdf (25MB) | low-res. pdf (2MB)

2005

Progressive Surface Reconstruction from Images using a Local Prior. Gang Zeng, Sylvain Paris, Long Quan, and François Sillion. International Conference on Computer Vision (ICCV’05). pdf (1.4MB) |ps (22MB) | gallery

  • Our PAMI paper extends this work with additional studies and results.
  • This paper stems from the same inspiration as our ECCV’04 paper (reconstruction by patches) but it exposes a different technique and it provides additional formal studies. In short, we do not need points to drive the process, the visibility is better evaluated using a voxel representation, and we guarantee the smoothness of the resulting model.
  • The optimization technique we use is detailed in our IJCV’06 paper.

Accurate and Scalable Surface Representation and Reconstruction from Images. Gang Zeng, Sylvain Paris, Long Quan, and Francois Sillion. MIT technical report 2005 (MIT-CSAIL-TR-2005-076). Arevised version has been accepted for publication in IEEE Transactions on Pattern Analysis and Machine Intelligence. It extends our ECCV’04 paper and our ICCV’05 paperpdf (2.8MB) | ps (2.9MB)

A Computational Darkroom for Black-and-White Photography. Soonmin Bae, Sylvain Paris, and Frédo Durand. Symposium on Computational Photography and Video (SCPV’05). This poster presents an early version of our SIGGRAPH’06 paperpdf (19MB)

2004

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Extraction of Three-dimensional Information from Images — Application to Computer Graphics
Sylvain Paris
Ph.D. thesis from Université Joseph Fourier (Grenoble, France) 2004
  • This dissertation compiles my work on 3D reconstruction (ECCV’04and IJCV’06), face relighting (PG’03) and capture of hair geometry (SIGGRAPH’04).
  • Compared to the papers, there are extended discussions of the previous work, more technical details and additional studies.

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Capture of Hair Geometry from Multiple Images
Sylvain Paris, Hector Briceño, and François Sillion
ACM Transactions on Graphics (Proceedings of the ACM SIGGRAPH’04 conference)
  • The hairstyles shown in the article are available. Just contact one of the authors with a short description of your project (we are interested in the use of our data).
  • Some image-processing code is also available.
  • Florence Bertails and colleagues have published at GI’05 the rendering technique used in the last slide of our presentation.
  • Our work is inspired by the hair acquisition technique of Stéphane Grabli and colleagues at GI’02.
  • Yichen Wei and colleagues have published at SIGGRAPH’05 another method on acquisition of hair geometry. Compared to our paper, they use several viewpoints and require only a well lighted environment. The paper is available on Long Quan’s page.

Surface Reconstruction by Propagating 3D Stereo Data in Multiple 2D Images. Gang Zeng, Sylvain Paris, Long Quan, and Maxime Lhuillier. Proceedings of the European Conference on Computer Vision (ECCV’04). pdf (0.8MB) | more…

  • Our PAMI paper extends this article with additional studies and results.
  • Our ICCV’05 paper builds upon this work: It introduces a voxel representation instead of points to improve the visibility estimation and it studies the smoothness of the resulting surface.
  • The optimization technique we use is exposed in our IJCV’06 paper.

A Surface Reconstruction Method Using Global Graph Cut Optimization. Sylvain Paris, François Sillion, and Long Quan. Proceedings of the Asian Conference on Computer Vision (ACCV’04). An extended version appears in the International Journal on Computer Vision. pdf (0.6MB) | ps.gz (7MB) | more…
Robust Carving for Non-Lambertian Objects. Gang Zeng, Sylvain Paris, and Long Quan. Proceedings of the International Conference on Pattern Recognition (ICPR’04). pdf (415kB) | more…

2003

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Lightweight Face Relighting
Sylvain Paris, François Sillion, and Long Quan
Proceedings of the Pacific Graphics conference (PG’03)
  • The described rendering technique is somewhat old fashioned. Readers will still be interested in the proposed analysis of the skin reflectance.

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Dynamic Canvas for Non-Photorealistic Walkthroughs
Matthieu Cunzi, Joëlle Thollot, Sylvain Paris, Gilles Debunne, Jean-Dominique Gascuel, and Frédo Durand
Proceedings of the Graphics Interface conference (GI’03)
  • The project page provides a lot of supplemental material (video, texture, code).
Robust Acquisition of 3D Informations from Short Image Sequences. Sylvain Paris and François Sillion. Graphical Models (GM’03). Our IJCV’06 paper extends this work with min cuts. pdf (0.5MB) | ps (3.5MB) | more…
A Volumetric Reconstruction Method from Multiple Calibrated Views using Global Graph Cut Optimization. Sylvain Paris and François Sillion, Long Quan. INRIA technical report 4843 (2003). See our IJCV’06 paper for the latest version. pdf (0.7MB) | more…
Optimisation à base de flot de graphe pour l’acquisition d’informations 3D à partir de séquences d’images. Sylvain Paris and François Sillion. Revue Internationale de CFAO et d’Informatique Graphique (2003). See our IJCV’06 paper for the latest version. pdf (0.4MB) | more…
Study of Volumetric Methods for Face Reconstruction. Gang Zeng, Sylvain Paris, Maxime Lhuillier, and Long Quan. Proceedings of the IEEE Intelligent Automation Conference (IAC’03). pdf (0.3MB) | more…

2002

Optimisation à base de flot de graphe pour l’acquisition d’informations 3D à partir de séquences d’images. Sylvain Paris and François Sillion. Actes des journées de l’AFIG (AFIG’02). (This meeting has no review process). Our IJCV’06 paper extends this work with min cuts. pdf (0.7MB) | more…
Robust Acquisition of 3D Informations from Short Image Sequences. Sylvain Paris and François Sillion. Proceedings of the Pacific Graphics conference (PG’02). See our IJCV’06 paper for the latest version.pdf (0.7MB) | more…

Talks

Beyond the Piece of Cardboard: Learning to Adjust Photographs

Methods for 3D Reconstruction from Multiple Images
  • A review of multi-view stereo up to 2006. It is inpsired from Section 2.2 of my PhD dissertationand this survey by Seitz and colleagues.
  • Full-length references are in the note section of the slides.

Products

thumbnailAuto Adjust in Photoshop CS6
  • The Auto option in Curves, Levels, and Brightness & Contrast is inspired from my work on inferring photographic adjustments.
thumbnailSmooth Edges in Photoshop CS6 (HDR Pro)
  • The Smooth Edges option is inspired from my work on unnormalized bilateral filtering.
thumbnailthumbnailthumbnailImage Adjustments in Photoshop CS6 (Camera Raw), Lightroom 4, and Revel
  • The new Highlights, Shadows, and Clarity adjustments are inspired from my work on local Laplacian filters.
thumbnailPhotomerge Style Match in Photoshop Elements 9
  • This tool is inspired from my work on photographic style.
thumbnailHDR Pro in Photoshop CS5
  • This tool is inspired from my work on photographic style.
thumbnailBilateral Filter in After Effects CS4
  • This filter is inspired from my work on the bilateral grid.

Research Material

Courses

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A Gentle Introduction to Bilateral Filtering and its Applications
Sylvain Paris, Pierre Kornprobst, Jack Tumblin, and Frédo Durand
Class at ACM SIGGRAPH’08
Tutorial at IEEE CVPR’08
Course at ACM SIGGRAPH’07
  • Course notes, slides, references, and source code are available on the course webpage.
ASM x86 Sylvain Paris. I have been a teaching assistant for a course on the x86 assembly language. Thecourse notes are in French and some links are dead. One will still be interested in the commented code snippets.

C++ Code

I have developed these packages to implement some of techniques exposed in my papers. They may help you to get your own implementation. Sample code is included in the documentation. You may need the basic tools to use some packages.

Basic tools Array, vectors, colors, and so on. Needed by the other packages.

Min cut Min-cut implementation for huge grid graphs (supports millions of nodes and vertices). Needs the basic tools.

Filters A set of 2D functions useful for image processing. Needs the basic tools.

FFT Convenient functions to use FFTW for image processing. Needs the basic tools.

Fast bilateral filter
Fast tone mapping
Code is provided on our project webpage on fast bilateral filtering.
Bilateral grid Jiawen gives the code of SIGGRAPH’07 paper.
Mean shift Implementation of the algorithm described in our CVPR’07 article.

Javascript

I wanted to learn about Javascript, so I modified Jason Davies’s Word Cloud to create the background of this page. It is made of words found in the page itself. It heavily uses the D3 visualization library. The source code of the page is not modified, only a few scripts are loaded at the end (look at the HTML code for the details). The appearance of the words is controlled by the #wallpaper entry in the companion CSS.

Illustrations

thumbnailMean-Shift Segmentation and Morse Theory

  • The beginning of this video shows how mean-shift segmentation is defined and illustrates some concepts of Morse theory.
thumbnailSpherical Harmonics

  • Have you ever wonder how SH of order greater than 3 look like? This pageshows up to order 10.
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PDE filters

Useful Links

Here is a collection of websites that I often use. If you do not know them, take some time to have look, you will not regret.

Programming Tools for C++

libQGLViewer A wonderful OpenGL viewer
QT GUI made easy
FFTW Fast Fourier Transform (1D or 2D, real or complex). The doc is not very clear but it is really fast.
GSL A set of scientific tools well documented and quickly usable
Hoard Speed up memory access (does not seem to compile on 64bits machines)
ANN Computes nearest neighbors in arbitrary dimensions. Well documented and easy to use.

Miscellaneous

BruceLindbloom.com
EasyRGB.com
Good references about color spaces (including translation formulae)
WebFX PNG Behavior A simple workaround to get transparent PNG correctly displayed even with IE6 (IE7 fixed the problem).
Semantic Atlas Graph approach for English-French, French-English and synonym dictionaries (this is a research project)
MathWorld Good reference for mathematical formulae
Calibrated image sequences Images and calibration matrices. My head is one of the data sets. I am a data set!

Old Projects

These are some past projects (mostly undergrade and Masters assignments). They are written in French. I do not maintain any of these. However, code is provided and might be useful.

The 12-coin problem How to solve a logical problem using stepwise entropy reduction.
An illustrated calendar I enjoyed a Computer Art course.
Mesh simplification It follows a classical edge collapse strategy.
Image denoising A comparison between several PDE filters.

Personal Area

Chinese Painting

thumbnail Nelson did a Chinese painting of my name when I was an intern in Hong Kong. He used his virtual brush. He comments the painting on his webpage.

Photography

Film

Thanks to Eugene, I have experienced film photography and darkroom development. Here are scanned versions of my two pictures (click to enlarge):

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Portraits

Eugene has shot a few portaits of me with my digital camera. The top picture is one of them. See the other portraits.

Digital

Here is a selection of my pictures sorted by year.

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Source:
http://people.csail.mit.edu/sparis/#contact
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