Digital analysis of rotated images

Author

Alliney, Stefano

Author_Institution

Istituto di Matematica Gen. e Finanziaria, Bologna Univ., Italy

Volume

15

Issue

5

fYear

1993

fDate

5/1/1993 12:00:00 AM

Firstpage

499

Lastpage

504

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

Keywords

image processing; least squares approximations; motion estimation; image processing; least square criterion; motion estimation; numerical method; relative rotation estimation; rotated images; Biomedical computing; Correlation; Density functional theory; Image analysis; Image motion analysis; Image registration; Interpolation; Layout; Least squares approximation; Motion estimation;

fLanguage

English

Journal_Title

Pattern Analysis and Machine Intelligence, IEEE Transactions on

Publisher

ieee

ISSN

0162-8828

Type

jour

DOI

10.1109/34.211470

Filename

211470