Fast watermark detection scheme for camera-equipped cellular phone

Authors:
Takao Nakamura;Atsushi Katayama;Masashi Yamamuro;Noboru Sonehara
Affiliations:
NTT Cyber Space Laboratories, Yokosuka-Shi, Kanagawa, Japan;NTT Cyber Space Laboratories, Yokosuka-Shi, Kanagawa, Japan;NTT Cyber Space Laboratories, Yokosuka-Shi, Kanagawa, Japan;National Institute of Informatics, Chiyoda-ku, Tokyo, Japan
Venue:
Proceedings of the 3rd international conference on Mobile and ubiquitous multimedia
Year:
2004

Citing 2
Cited 6

Designing the user interface (2nd ed.): strategies for effective human-computer interaction

Designing the user interface (2nd ed.): strategies for effective human-computer interaction
New high-speed frame detection method: Side Trace Algorithm (STA) for i-appli on cellular phones to detect watermarks

Proceedings of the 3rd international conference on Mobile and ubiquitous multimedia

New high-speed frame detection method: Side Trace Algorithm (STA) for i-appli on cellular phones to detect watermarks

Proceedings of the 3rd international conference on Mobile and ubiquitous multimedia
Watermark robustness in the print-cam process

SPPRA '08 Proceedings of the Fifth IASTED International Conference on Signal Processing, Pattern Recognition and Applications
C-band: a flexible ring tag system for camera-based user interface

ICVR'07 Proceedings of the 2nd international conference on Virtual reality
Watermark detection for video bookmarking using mobile phone camera

CMS'10 Proceedings of the 11th IFIP TC 6/TC 11 international conference on Communications and Multimedia Security
A two-factor authentication system using Radio Frequency Identification and watermarking technology

Computers in Industry
Using mobile devices to enable visual multiplexing on public displays: three approaches compared

Proceedings of the 12th International Conference on Mobile and Ubiquitous Multimedia

Quantified Score

Hi-index	0.00

Visualization

Abstract

Digital watermarking technology would be very useful as part of a related service introduction system (RSIS); this system provides related information to content, and the function of watermark in RSIS is analogous to that of barcode, i.e., watermark binds content ID to analog content such as an image on printed material.In this paper, we focus on a camera-equipped cellular phone used as a terminal for RSIS, and propose a fast watermark detection scheme from a captured image. The proposed scheme consists of two processes, one is to correct geometric distortion of the captured image, and the other is to detect watermark information from the rectified image. We also propose a new watermarking algorithm which is robust against small geometric distortion and suitable for the proposed scheme. Moreover, we introduce a quantitative evaluation method for indicating detection reliability, which is indispensable for RSIS service.Finally, we show that the proposed scheme enables users to detect embedded information in approximately one second, even when implemented as a Java application on a cell phone with limited resources, and report experiments that confirm the proposed scheme's efficiency.