Toward robust analysis of unstructured point-cloud

I am a CNRS researcher, working at the STORM research group, in the IRIT laboratory, Toulouse.
I am also an associate researcher of Archeovision, a CNRS laboratory studying how Cultural Heritage researches can be leveraged by the acquisition, modelling and processing of 3D data.

My research interests focus on the analysis of unstructured data (usually point-clouds) generated by acquiring a physical object or scene, a very hot topic in several research communities (Computer&Graphics, Pattern Recognition, …) and in the industry. Above all the research aspects, I’m considering the following challenges: 1) there is currently no practical formalism allowing to characterize shapes at locals, medium and large scales at once, 2) the notion of a shape scale within an object is still ill-defined, despite a wide range of attempts, 3) very few studies have been published on the transitions between the pertinent scales and shapes of a 3D model.

In addition to these theoretical challenges, I’m also very interested in the applications that could be enhanced by more efficient analysis of raw point clouds: cleaning, reconstruction, abstraction, completion, recognition, etc.

I’ve also a growing interest on color processing, using geometrical properties of colors. We call that Structural Color Processing.


We are hiring a post-doc on palette-based color exploration. Starting: now, for 12 months.
Checkout details and other open calls on our group webpage.

News

Last update: February 27th, 2019.
  • February 27th 2019: I am co-mentoring a project for the next Google Summer of Code with CGAL. Links:
  • November 13th 2018: This week we are in Poitiers for the French Computer Graphics conference JFIG. Anahid Ghazanfarpour and Thibault Lejemble will present their latest results on mesh simplification and point-cloud analysis respectively. Anahid got the best student paper award.
  • October 20th 2018: Our paper Dynamic implicit muscles for character skinning first authored by Valentin Roussellet has been conditionally accepted to Computer and Graphics (CAG).
  • September 2018: Claudio Mura is joining our group as visiting researcher for 4 months, and will be working on point-based shape analysis.
  • September 2018: Our ANR project MCG-Rad is about to start in the upcoming months. We will study Monte-Carlo Global Radiative Forcings Computation in collaboration with the laboratories LMD/IPSL, and LAPLACE, and also MesoStar.
  • July 24th 2018: I am now an Associate Researcher of the CNRS laboratory Archeovision.
  • July 12th 2018: Our paper Automated Markerless Registration of Point Clouds from TLS and Structured Light Scanner for Heritage Documentation authored by Jie Shao has been accepted for publication in the Elsevier Journal of Cultural Heritage.
  • July 11th 2018: I served on the Best Paper Selection Committee for the Eurographics Symposium on Geometry Processing (SGP) 2018.
  • April 18th 2018: We are recruiting a research engineer to transfer our Color Palette Exploration approach into commercial software. Checkout details here.
  • December 11th 2017: Jie Shao is joining our group as visiting PhD student, and will be working on point clouds registration.
  • October 1st 2017: Thibault Lejemble is starting is PhD in the team, and will be working on point-based shape analysis.
  • September 27th 2017: checkout our interview on 3DVF on our Siggraph paper Constrained Palette-Space Exploration.
  • July 29th 2017: I’m reporting what’s happening at Siggraph 2017 for the AFIG-IGRV. Check it out here (in french): mission-siggraph-2017 (they talk about it: 3dvf).
  • July 5th 2017: Our C++ library got the SGP Software Award !
  • previous entries …

Affiliations:

  • CNRS, IRIT, Université de Toulouse, INPT, UPS, UT1C, UT2J, France.
  • CNRS, Archeovision, Université de Bordeaux, France.

Timeline

  • 2016-Now: CNRS researcher (chargé de recherche) at IRIT (Toulouse, France), at the STORM research group.
  • 2014-2016: Post-doc at IRIT, Université Paul-Sabatier (Toulouse, France), with David Vanderhaeghe,
  • 2013-2014: Post-doc at University College London working with Niloy Mitra,
  • 2012-2013: Post-doc at Inria Bordeaux Sud-Ouest (France), working with Pascal Barla, Gaël Guennebaud and ArcheoVision,
  • 2009-2012: PhD thesis at Inria Bordeaux Sud-Ouest (France), supervised by Patrick Reuter and Christophe Schlick.

Research interests (see publication and research pages for details)

  • 3D shape analysis: focusing on acquired data, possibly with complex geometry and multiple pertinent scales
  • 3D shape registration: focusing on global (no input pose) rigid registration with partial overlap,
  • Semi-automatic systems: mixing efficient computations and interaction for real-time solutions,
  • Structural Color Processing.

Students

Opportunities: checkout https://www.irit.fr/STORM/site/open-positions/.

PhD students:

  • Jie Shao (co-advisor: Wuming Zhang): point-cloud registration and processing
  • Thibault Lejemble (co-advisor: Loic Barthe): shape analysis
  • Anahid Ghazanfarpour (co-advisor: Jean-Pierre Jessel): mesh processing

Master students:

Undergrad students:

Former students:

  • Paul Bernardi (co-advisor: David Vanderhaeghe): Strucutral Color Processing
  • Céline Michaud (co-advisor: Mathias Paulin. Company: Oktal-SE): mesh processing
  • Baptiste Delos (co-advisor: David Vanderhaeghe): Structural Color Processing
  • Fatemi Arezou (co-advisor: David Vanderhaeghe): real-time rendering
  • Xavier Chalut (co-advisor: Jean-Pierre Jessel): mesh processing
  • Georges Nader (co-advisor: Gaël Guennebaud): shape analysis
  • Bastien Perpère (co-advisors: Gaël Guennebaud, Pascal Barla. Company: The Foundry): rendering