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Motion-Egomotion Discrimination and Motion Segmentation from Image-Pair Streams

David Demirdjian 1 Radu Horaud 1 
1 MOVI - Modeling, localization, recognition and interpretation in computer vision
GRAVIR - IMAG - Laboratoire d'informatique GRAphique, VIsion et Robotique de Grenoble, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
Abstract : Given a sequence of image pairs we describe a method that segments the observed scene into static and moving objects while it rejects badly matched points. We show that, using a moving stereo rig, the detection of motion can be solved in a projective framework and therefore requires no camera calibration. Moreover the method allows for articulated objects. First we establish the projective framework enabling us to characterize rigid motion in projective space. This characterization is used in conjunction with a robust estimation technique to determine egomotion. Second we describe a method based on data classification which further considers the non-static scene points and groups them into several moving objects. Third we introduce a stereo-tracking algorithm that provides the point-to-point correspondences needed by the algorithms. Finally we show some experiments involving a moving stereo head observing both static and moving objects.
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Submitted on : Tuesday, May 3, 2011 - 9:24:33 AM
Last modification on : Wednesday, May 4, 2022 - 12:12:03 PM
Long-term archiving on: : Thursday, August 4, 2011 - 2:56:48 AM


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David Demirdjian, Radu Horaud. Motion-Egomotion Discrimination and Motion Segmentation from Image-Pair Streams. Computer Vision and Image Understanding, 2000, 78 (1), pp.53--68. ⟨10.1006/cviu.1999.0827⟩. ⟨inria-00590125⟩



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