Does Rotation Influence the Estimated Contour Length of a Digital Object?

Document Type

Conference Article

Publication Title

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

Abstract

In this work, we study the variation of estimated contour length of a digital object when it is rotated with respect to its centroid. This analysis also helps to ascertain the unknown angle of rotation of an object relative to a reference position. Additionally, we propose a new technique for estimating the length of a digital contour based on stitched digital cover. The proposed study on rotational variation of contour length finds applications to various image-registration problems such as the detection of positioning-errors that are often encountered during X-ray imaging of patients. Experimental results are presented for some regular curves, natural objects, and X-ray images.

First Page

179

Last Page

186

DOI

10.1007/978-3-319-69900-4_23

Publication Date

1-1-2017

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