Title
Efficient retrieval of similar shapes
Abstract
We propose an indexing technique for the fast retrieval of objects in 2D images based on similarity between their boundary shapes. Our technique is robust in the presence of noise and supports several important notions of similarity including optimal matches irrespective of variations in orientation and/or position. Our method can also handle size-invariant matches using a normalization technique, although optimality is not guaranteed here. We implemented our method and performed experiments on real (hand-written digits) data. Our experimental results showed the superiority of our method compared to search based on sequential scanning, which is the only obvious competitor. The performance gain of our method increases with any increase in the number or the size of shapes.
Year
DOI
Venue
2002
10.1007/s007780100059
VLDB J.
Keywords
Field
DocType
hand-written digit,similarity retrieval,image databases,indexing technique,fourier descriptors,similarity queries,similar shape,obvious competitor,fast retrieval,shape retrieval,boundary shape,normalization technique,important notion,method increase,performance gain,efficient retrieval,indexation
Data mining,Normalization (statistics),Search algorithm,Similarity (geometry),Computer science,Search engine indexing,Image retrieval,Artificial intelligence,Object oriented databases,Similitude,Computer vision,Indexation,Database
Journal
Volume
Issue
ISSN
11
1
1066-8888
Citations 
PageRank 
References 
16
1.11
22
Authors
2
Name
Order
Citations
PageRank
Davood Rafiei147453.27
Alberto O. Mendelzon248481394.98