Digital analysis of rotated images
Alliney, S.
Istituto di Matematica Gen. e Finanziaria, Bologna Univ.;
This paper appears in: Pattern Analysis and Machine Intelligence, IEEE Transactions on
Publication Date: May 1993
Volume: 15,
Issue: 5
On page(s): 499-504
ISSN: 0162-8828
References Cited: 15
CODEN: ITPIDJ
INSPEC Accession Number: 4443293
Digital Object Identifier: 10.1109/34.211470
Current Version Published: 2002-08-06
Abstract
The problem of estimating the relative rotations of two images
taken from the same scene is considered, and a numerical method for
computing such rotations is presented. The main features of the proposed
method consist of the possibility of fast in-place computations with no
preliminary interpolation of the data and a considerable precision for
moderate rotation angles. The final estimate is performed with a least
square criterion, but in the present case, even such computations can be
substantially simplified. A detailed analysis shows that for practical
applications, the influence of discretization errors does not affect, in
a relevant way, the precision of the results; that is also confirmed by
numerical experiments
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