From Image Sequence to Virtual Reality

Jérôme Blanc 1 Roger Mohr 1, 2
2 MOVI - Modeling, localization, recognition and interpretation in computer vision
GRAVIR - IMAG - Graphisme, Vision et Robotique, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
Abstract : This paper presents a way to explore a 3D scene defined by 2D views : given some 2D views of the same scene, which we call reference views, we want the user to be able to move a virtual camera, so as to generate any other view of the scene, and carry out a virtual visit of the scene. We will show how we applied the trilinear relations stated by [Sha 94] to this so-called transfer problem. This approach avoids any kind of 3D reconstruction, thus allowing us to deal with real and complex images. We also successfully experimented on outdoor scenes, taken with a home video camera. The algorithm consists in two steps : it starts with a dense matching between the reference views ; each matched couple is then reprojected using the trilinear relations. This technique has numerous applications, among which virtual realities, or high rate video compression. The images obtained are more realistic than any 3D model we could have computed, while being geometrically correct.
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Jérôme Blanc, Roger Mohr. From Image Sequence to Virtual Reality. ISPRS Intercommission Workshop ``From Pixels to Sequences'', Mar 1995, Zürich, Switzerland. pp.144--149. ⟨inria-00548392⟩

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