Affine Shape Comparison using Different Distances

JOIV: International Journal on Informatics Visualization

Khalid Aznag¹  Essaid El Bachari¹  Ahmed El Oirrak¹  Toufik Datsi¹ 

[1] Computer Science Department, Cadi Ayyad University, Marrakesh, Morocco;

关键词: hd;    emd;    df;    dtw;    invariant;    arc length;    affine arc length.;   

DOI  :  10.30630/joiv.4.3.388

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown