Phase scrambling for blind image matching

Author

Ito, Izumi ; Kiya, Hitoshi

Author_Institution

Grad. Sch. of Syst. Design, Tokyo Metropolitan Univ., Hino

fYear

2009

fDate

19-24 April 2009

Firstpage

1521

Lastpage

1524

Abstract

We propose a phase-scrambling method for blind image matching, which is a direct image matching between invisible images. The phase scrambling is motivated by visual protection of images and prevention of illegal image matching. Phase-only correlation (POC) can be directly applied to images protected by the proposed phase scrambling in order to estimate similarity and translation between images. POC with synchronized scrambling provides blind image matching, in which phase scrambling does not affect the accuracy of POC. The effect of visual protection and prevention of illegal image matching is evaluated through simulations to show the effectiveness of the proposed method.

Keywords

correlation methods; image matching; blind image matching; correlation method; phase-only correlation; phase-scrambling method; visual protection; Correlation; Cryptography; Discrete Fourier transforms; Fourier transforms; Image matching; Indium tin oxide; Information security; Phase estimation; Protection; Sonar; image matching; phase-only correlation; registration; scrambling; secure data management;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on

Conference_Location

Taipei

ISSN

1520-6149

Print_ISBN

978-1-4244-2353-8

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2009.4959885

Filename

4959885