We present the Langevin rigid approach, a technique for animating the dynamics of immersed rigid bodies in viscous incompressible fluid in real-time. We use generalized Kirchhoff equations to ensure forces and torques from the surrounding fluid that create realistic motion of immersed rigid bodies. We call our method the Langevin rigid approach because the generalized Langevin equations are app...

Let ω be an open connected subset of R2 and let θ be an immersion from ω into R3. It is first established that the set formed by all rigid displacements, i.e., that preserve the metric and the curvature, of the surface θ(ω) is a submanifold of dimension 6 and of class C∞ of the space H(ω). It is then shown that the vector space formed by all the infinitesimal rigid displacements of the surface ...

This paper presents a method for classifying moving objects as rigid or non-rigid based on the similarity of their appearance over multiple frames. This classiication is performed by using an image of the object obtained earlier in the video sequence and examining the uc-tuation in the similarity between this reference image and subsequent images of the object. To do this, we use a representati...

A new method for efficient modelling of image sequences has been proposed by Kappei and Liedtke IM using an analysis by synthesis algorithm It is based on extracting the three dimensional information from a sequence of TV images in order to construct a 3D model of the scene The method can be used for the efficient transmission of TV images to a receiver, where the image sequence has to be recon...

This dissertation focuses on the problem of 3D object retrieval from large datasets in a near realtime manner. In order to address this task we focus on three major subproblems of the field: (i) pose normalization of rigid 3D models with applications to 3D object retrieval, (ii) non-rigid 3D object description and (iii) search over rigid 3D object datasets based on 2D image queries. Regarding t...

Let Ω be an open connected subset of R and letΘ be an immersion from Ω into R. It is first established that the set formed by all rigid displacements, i.e., that preserve the metric, of the open set Θ(Ω) is a submanifold of dimension 6 and of class C∞ of the space H(Ω). It is then shown that the vector space formed by all the infinitesimal rigid displacements of the same set Θ(Ω) is nothing but...