Abstract
The factorization method, first developed by Tomasi and Kanade, recovers both the shape of an object and its motion from a sequence of images, using many images and tracking many feature points to obtain highly redundant feature position information. The method robustly processes the feature trajectory information using singular value decomposition (SVD), taking advantage of the linear algebraic properties of orthographic projection. However, an orthographic formulation limits the range of motions the method can accommodate. Paraperspective projection, first introduced by Ohta, is a projection model that closely approximates perspective projection by modelling several effects not modelled under orthographic projection, while retaining linear algebraic properties. We have developed a paraperspective factorization method that can be applied to a much wider range of motion scenarios, such as image sequences containing significant translational motion toward the camera or across the image. We present the results of several experiments which illustrate the method's performance in a wide range of situations, including an aerial image sequence of terrain taken from a low-altitude airplane.
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Keywords
- Singular Value Decomposition
- Factorization Method
- Measurement Matrix
- Perspective Projection
- Orthographic Projection
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© 1994 Springer-Verlag Berlin Heidelberg
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Poelman, C.J., Kanade, T. (1994). A paraperspective factorization method for shape and motion recovery. In: Eklundh, JO. (eds) Computer Vision — ECCV '94. ECCV 1994. Lecture Notes in Computer Science, vol 801. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0028338
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DOI: https://doi.org/10.1007/BFb0028338
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