Abstract
We present a framework for fast (linear time) local estimation of optical flow in image sequences. Starting from the commonly used brightness constancy assumption, a simple differential technique is derived in a first step. Afterwards, this approach will be extended by the application of a nonlinear diffusion process to the flow field in order to reduce smoothing at motion boundaries. Due to the ill-posedness of the determination of optical flow from the related differential equations, a Wavelet-Galerkin projection method is applied to regularize and linearize the problem.
The author is supported by the Deutsche Forschungsgemeinschaft (DFG) within the Graduiertenkolleg 357, “Effiziente Algorithmen und Mehrskalenmethoden”.
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Neckeis, K. (2001). Fast Local Estimation of Optical Flow Using Variational and Wavelet Methods. In: Skarbek, W. (eds) Computer Analysis of Images and Patterns. CAIP 2001. Lecture Notes in Computer Science, vol 2124. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44692-3_43
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DOI: https://doi.org/10.1007/3-540-44692-3_43
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