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  • 07.10.2015 PhD

    Soutenance de thèse Norbert Bus

    THE USE OF GEOMETRIC STRUCTURES IN GRAPHICS AND OPTIMIZATION Date: Wednesday 7th of October 2015 - 10:00 - AMPHI 160, ESIEE Paris, Noisy-le-Grand Abstract: Real-world data has a large geometric component, exhibiting significant geometric patterns. Therefore exploiting the geometric nature of data to design efficient methods has become a very important topic in several scientific fields, e.g., computational geometry, discrete geometry, computer graphics. In this thesis we use geometric structures to desig ...

  • 25.09.2015 PhD

    Soutenance de thèse Hironobu Fujiyoshi

    Date : Friday 25th of September - 1:30 p.m. to 2:30 p.m., room 160 Fast object detection with binary feature representation Abstract: Object detection involves classification of a huge number of detection windows obtained by raster scanning of an input image. In this talk, we introduce an approximate computation of linear SVM with binary feature representation to object detection. We will show that the proposed method is about 16 times faster than the conventional HOG and linear SVM and improves the clas ...

  • 11.06.2015 Seminar

    Séminaire LIGM - Scattering tomography with path integral

    Logo Laboratoire Gaspard Monge

    Date : Thursday, June 11th from 1:30 p.m. to 2:30 p.m. "Scattering tomography with path integral" Toru Tamaki Hiroshima University, Japan Abstract: Tomography, an inverse problem to recover inside an object by probing light and observing its output, is an important issue in physics, medical imaging, computer vision and related research fields. In this talk, we will present an approach to optical scattering tomography that uses the path integral, which has been developed for volu ...

  • 11.06.2015 Seminar

    Séminaire LIGM - Scattering tomography with path integral

    Logo Laboratoire Gaspard Monge

    Date : Thursday, June 11th from 1:30 p.m. to 2:30 p.m. Scattering tomography with path integral Toru Tamaki Hiroshima University, Japan Abstract: Tomography, an inverse problem to recover inside an object by probing light and observing its output, is an important issue in physics, medical imaging, computer vision and related research fields. In this talk, we will present an approach to optical scattering tomography that uses the path integral, which has been developed for volume rendering ...

  • 13.05.2015 Seminar

    Séminaire LIGM - Understanding deep features with computer-generated imagery

    Logo Laboratoire Gaspard Monge

    Date : Wednesday, May 13 at 15:00 Understanding deep features with computer-generated imagery Mathieu AUBRY LIGM/ENPC and UC Berkeley Abstract: We introduce an approach for analyzing the variation of features generated by convolutional neural networks (CNNs) trained on large image datasets with respect to scene factors that occur in natural images. Such factors may include object style, 3D viewpoint, color, and scene lighting configuration. Our approach analyzes CNN feature responses with r ...

  • 12.05.2015 Seminar

    Séminaire LIGM - Efficient Incremental Computation of Families of Component Trees

    Logo Laboratoire Gaspard Monge

    Date : Tuesday, May 12th from 1:30 p.m. to 2:30 p.m. "Efficient Incremental Computation of Families of Component Trees" Ronaldo Fumio Hashimoto University of São Paulo, Brazil Abstract: Component tree allows an image to be represented as a hierarchy of connected components. These components are directly related to the neighborhood chosen to obtain them and, in particular, a family of component trees built with increasing neighborhoods allows the linking of nodes of different trees acco ...

  • 07.05.2015 Seminar

    Séminaire LIGM - Labeling the world

    Logo Laboratoire Gaspard Monge

    Date : Thursday, May 7 at 11:00 "Labeling the world" Bryan C. Russell Adobe Research Abstract: Much of our 3D visual world is described in auxiliary data, such as online text and maps. In this talk I will describe two works that reason about such auxiliary data, together with reconstructed 3D geometry. In the first part I'll describe an approach for analyzing Wikipedia and other text, together with online photos, to produce annotated 3D models of famous tourist sites. The approach is ...

  • 15.04.2015 Seminar

    Séminaire LIGM - Stable radial distortion calibration by polynomial matrix inequalities programming

    Logo Laboratoire Gaspard Monge

    Date : Wednesday, 15 April - 11:00 "Stable radial distortion calibration by polynomial matrix inequalities programming" Tomas Pajdla Czech Technical University in Prague Abstract: Polynomial and rational functions are the number one choice when it comes to modeling of radial distortion of lenses. However, several extrapolation and numerical issues may arise while using these functions that have not been covered by the literature much so far. In this paper, we identify these problems and ...