A multiscale method for the reassembly of two-dimensional fragmented objects

Author

Da Gama Leitao, Helena Crtstina ; Stolfi, Jorge

Author_Institution

Inst. of Comput., Fluminese Fed. Univ., Rio de Janeiro, Brazil

Volume

24

Issue

9

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

1239

Lastpage

1251

Abstract

We describe an efficient procedure for reassembling unknown two-dimensional objects that have been broken or torn into a large number of irregular fragments, a problem that often arises in archaeology, art restoration, forensics, and other disciplines. The procedure compares the curvature-encoded fragment outlines, at progressively increasing scales of resolution, using an incremental dynamic programming sequence-matching algorithm. The total cost gets reduced by a factor proportional to the mean number of samples per segment, which makes the method viable for problems of practical size (thousands of fragments). The performance of our method is illustrated with an artificial but realistic example

Keywords

archaeology; dynamic programming; image matching; image reconstruction; image resolution; archaeology; art restoration; curvature-encoded fragment outlines; forensics; image resolution; incremental dynamic programming sequence matching; irregular fragments; multiscale method; performance; two-dimensional fragmented object reassembly; Art; Costs; Dynamic programming; Forensics; Heuristic algorithms;

fLanguage

English

Journal_Title

Pattern Analysis and Machine Intelligence, IEEE Transactions on

Publisher

ieee

ISSN

0162-8828

Type

jour

DOI

10.1109/TPAMI.2002.1033215

Filename

1033215