Image stitching using chaos-inspired dissimilarity measure

Taeyup Song, Changwon Jeon, Hanseok Ko

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A novel image-stitching algorithm is proposed that uses the chaosinspired dissimilarity measure. Previous approaches to image stitching generally employed invariant local features and random sample consensus (RANSAC), to verify image matches. In panoramic stitching, however, RANSAC is highly sensitive to illumination difference between the pair of images stemming from two different exposures, which essentially results in mismatched pairs, leading to poor stitching performance. By applying chaos theory, the contextual change of an image becomes chaos-like, and results in a complex fractal trajectory in phase space. The specific chaos behaviour between a pair of images is exploited, whereby the resulting phase space exhibits strong invariance to illumination changes. Accordingly, the chaosinspired dissimilarity between images is measured, thereby the matched pairs are robustly found under the presence of illumination difference. Representative performance experiments demonstrate significant improvements over the conventional method.

Original languageEnglish
Pages (from-to)232-234
Number of pages3
JournalElectronics Letters
Volume51
Issue number3
DOIs
Publication statusPublished - 2015 Feb 5

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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