Open AccessDigital shape compactness measure by means of perimeter ratios
Author(s) -
SantiagoMontero R.,
LópezMorales M.A.,
Sossa J.H.
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.3685
Subject(s) - compact space , measure (data warehouse) , mathematics , perimeter , scale (ratio) , set (abstract data type) , mathematical analysis , algorithm , computer science , data mining , geometry , physics , quantum mechanics , programming language
A goodness compactness measure is necessary in computer medical diagnosis, shape analysis and computer vision processes. A compactness measure called the normalised E ‐factor (NEF) is introduced. It is shown that this measure is simple and robust to translations, rotations and scale changes and that it satisfies the set of criteria for a good compactness measure. Through a series of experiments it is shown that the normalised E ‐factor is useful for shape description, measuring digital compactness with or without holes and that it overcomes some drawbacks that are present in the classical and normalised discrete compactness measures.