Least squares congealing for unsupervised alignment of images
Cox, Mark D., Sridharan, Sridha, Lucey, Simon, & Cohn, Jeffrey (2008) Least squares congealing for unsupervised alignment of images. In 2008 IEEE Conference on Computer Vision and Pattern Recognition, IEEE, Anchorage, Alaska, pp. 1-8.
In this paper, we present an approach we refer to as "least squares congealing" which provides a solution to the problem of aligning an ensemble of images in an unsupervised manner. Our approach circumvents many of the limitations existing in the canonical "congealing" algorithm. Specifically, we present an algorithm that:- (i) is able to simultaneously, rather than sequentially, estimate warp parameter updates, (ii) exhibits fast convergence and (iii) requires no pre-defined step size. We present alignment results which show an improvement in performance for the removal of unwanted spatial variation when compared with the related work of Learned-Miller on two datasets, the MNIST hand written digit database and the MultiPIE face database.
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|Item Type:||Conference Paper|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Institutes > Information Security Institute
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2008 IEEE|
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|Deposited On:||10 Feb 2009 10:33|
|Last Modified:||29 Feb 2012 23:47|
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