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A PROPOSAL OF THE MULTIMEDIA ARCHIVE SYSTEM WITH
WATERMARK INDEX FOR PREVENTION OF DISASTERS
2 3
Fumio Maehara 'and Yoshikazu Tanno' '
*1. Matsushita Electric Industrial Co., Ltd. 2-15 Matsubacho Kadoma-shi, Osaka, Japan
*2 Osaka University , Machikaneyama-cho Toyonaka-shi Osaka, Japan.
*3 Yamagata Digital Contents Center for Research and Promotion, Matsuei, Yamagata, Japan
* 1) E-mail: maehara.fumio@ip.panasonic.com
URL: http://www.archive.gr.jp

ABSTRUCT: According to the rapid expansion of the digital broadcasting and networks, the large
scale contents creation and multimedia archives are eagerly discussed. Multimedia database or archives
are very useful not only the entertainment but also the social security or prevention of disasters such as
the records of earthquake or typhoon etc. In such database the retrieval method and preservation of the
explanation to the situation related to the recorded video are highly important. Here we introduce the
large scale archive system, the retrieval interface and index format with watermark and Mpeg-7
metadata to apply the prevention of the disaster database. And also the information security on the
system, based on ISO17799 recommendation, will be discussed briefly.

KEYWORDS: Archive, ISO 15004, ISP 17799, Metadata, Multimedia database
1. INTRODUCTION
With the rapid progress in broadband network and terrestrial broadcasting, the environment for
facilitating digital contents, database, archiving and their distribution channels become increasingly
indispensable.
On the other hand multimedia database for the social security or prevention of disasters are coming to
the important stage. The important issues to built the multimedia database are to make user friendly retrieval
interface and ensure the physical and informational security.
To make user friendly retrieval system, generalized efficient indexing method, which has the
robustness in the disaster environment is required.
We have developed the large scale archive which capacity is 7200 cassettes and 3000 contents have
been shoot and stored in it The system is locate in Yamagata. System development and researches have
been carried out under the management of Telecommunication Advancement Organization (TAO, National
Institute of Information and Communication Technology: NIST, now) which is on of the independent legal
organization of Ministry of Public Management, Home Affairs, Post and Telecommunications.
The system has the tape feed archive robot, DVD server and HD (Hard Disc) server and 62 sub-divided
motion picture thumb nail retrieval interface. The major issue of the system is to give the universal indexing
method in the aspects of format and data preservation, Mpeg-7 metadata format has been proposed and the
watermark technology to embed the information on the video data has newly been proposed.
Here we report the overview of the system, watermark technology and indexing method of Mpeg-7
metadata and the application of the metadata to the prevention of disaster database. Information security
will also be discussed briefly as the future issues.
This paper covers the contents as followings.
First, authors mentioned the research background in this section and then the overview of the multimedia
archive system in Yamagata Video Archive Research Center is introduced, watermark technology to embed
the information data on the video will be mentioned in section 3, The index format based on Mpeg-7 and
metadata format will be discussed in section 4 and the database of prevention of disaster in section 5 and the