A fast algorithm for subpixel accuracy image stabilization for digital film and video

Date
1998
Advisor
Instructor
Source Title
Proceedings of SPIE Vol. 3309, Visual Communications and Image Processing'98
Print ISSN
0277-786X
Electronic ISSN
Publisher
SPIE
Volume
3309
Issue
Pages
786 - 797
Language
English
Type
Conference Paper
Journal Title
Journal ISSN
Volume Title
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.

Course
Other identifiers
Book Title
Keywords
Image registration, Motion estimation, Unsteadiness correction, Algorithms, Error analysis, Motion compensation, Video signal processing, Digital films, Image stabilization, Image analysis
Citation
Published Version (Please cite this version)