JOIV : International Journal on Informatics Visualization
Vol 4, No 3 (2020)

Affine Shape Comparison using Different Distances

Khalid Aznag (Computer Science Department, Cadi Ayyad University, Marrakesh, Morocco)
Toufik Datsi (Computer Science Department, Cadi Ayyad University, Marrakesh, Morocco)
Ahmed El Oirrak (Computer Science Department, Cadi Ayyad University, Marrakesh, Morocco)
Essaid El Bachari (Computer Science Department, Cadi Ayyad University, Marrakesh, Morocco)

Article Info

Publish Date
30 Sep 2020

Abstract

In this work, we propose to compare affine shape using Hausdorff distance (HD), Dynamic Time Warping (DTW), Frechet (DF), and Earth Mover distance (EMD). Where there is only a change in resolution shape distance are computed between shape coordinates because the distance is not invariant under rotation or affinity. In case of transformation, distances are calculated not between shape coordinates but between Arc length or Affine Arc length. Arc length is invariant under rotation while Affine Arc length is invariant under affinity. The main advantage is invariance under change of resolution, rotation, and affinity.

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Journal Info
JOIV : International Journal on Informatics Visualization
Website

Abbrev

joiv

Publisher

Politeknik Negeri Padang

Subject

Computer Science & IT

Description

JOIV : International Journal on Informatics Visualization is an international peer-reviewed journal dedicated to interchange for the results of high quality research in all aspect of Computer Science, Computer Engineering, Information Technology and Visualization. The journal publishes state-of-art ...