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      • Department of Electrical and Electronics Engineering
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      A fast algorithm for subpixel accuracy image stabilization for digital film and video

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      Author
      Eroğlu, Çiğdem
      Erdem, A. T.
      Date
      1998
      Source Title
      Proceedings of SPIE Vol. 3309, Visual Communications and Image Processing'98
      Print ISSN
      0277-786X
      Publisher
      SPIE
      Volume
      3309
      Pages
      786 - 797
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      This paper introduces a novel method for subpixel accuracy stabilization of unsteady digital films and video sequences. The proposed method offers a near-closed-form solution to the estimation of the global subpixel displacement between two frames, that causes the misregistration of them. The criterion function used is the mean-squared error over the displaced frames, in which image intensities at subpixel locations are evaluated using bilinear interpolation. The proposed algorithm is both faster and more accurate than the search-based solutions found in the literature. Experimental results demonstrate the superiority of the proposed method to the spatio-temporal differentiation and surface fitting algorithms, as well. Furthermore, the proposed algorithm is designed so that it is insensitive to frame-to-frame intensity variations. It is also possible to estimate any affine motion between two frames by applying the proposed algorithm on three non-collinear points in the unsteady frame.
      Keywords
      Image registration
      Motion estimation
      Unsteadiness correction
      Algorithms
      Error analysis
      Motion compensation
      Video signal processing
      Digital films
      Image stabilization
      Image analysis
      Permalink
      http://hdl.handle.net/11693/27667
      Published Version (Please cite this version)
      http://dx.doi.org/10.1117/12.298390
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      • Department of Electrical and Electronics Engineering 3524
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