JP2004072316A - Mobile phone with electronic camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile phone with electronic camera which can embed copyright data in picture data without making a user previously perform inputting and keeping operations on copyright data. <P>SOLUTION: A picture signal of an object photographed with an image pickup part 10-1 is signal-processed and is stored as picture data in a signal processing/picture data storage part 10-2. Authentication information for authenticating the mobile phone as to whether the mobile phone is properly contracted is stored in an authentication information storage part 10-5. An electronic watermark data insertion part 10-3 reads contracting person authentication information from the authentication information storage part 10-5 and embeds electronic watermark data (authentication information) in picture data. Electronic watermark insertion picture data are transmitted from a transmission/reception part 10-4 to a network. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a digital watermark technique for embedding watermark information in image data of a subject photographed by an electronic camera of a mobile phone with an electronic camera for copyright protection and falsification prevention.
[0002]
[Prior art]
2. Description of the Related Art Image data of a subject photographed by an electronic camera connected to a mobile phone or an electronic camera built in the mobile phone is transmitted from the mobile phone to a user via the Internet via an e-mail, an electronic bulletin board, or the like. .
FIG. 1 shows a schematic configuration of an image transmission system using a conventional mobile phone.
The image transmission system is configured by connecting a mobile phone 1 with an electronic camera, a mobile phone 2 to which an electronic camera 3 is connected, a personal computer terminal 5, a server 4, and the like via a network 6.
The network 6 includes a mobile telephone network, a public telephone network, the Internet, and the like. The mobile telephone network has a base station, an exchange, and a transit exchange. The server 4 is a server for an electronic mail, an electronic bulletin board, and the like.
Each of the mobile phones 1 and 2 includes a microphone, a speaker, a voice processing device, an input unit, a display, a transmission / reception unit, a data processing device, and a control unit for controlling these devices. It has a service function such as a bulletin board.
[0003]
A case where an electronic mail is transmitted from the mobile phone 1 with an electronic camera or the mobile phone 2 to which the electronic camera 3 is connected to the personal computer terminal 5 will be described.
Image data attached to an e-mail from the electronic camera-equipped mobile phone 1 or the mobile phone 2 is transmitted to the personal computer terminal 5 via the network 6 and the server 4.
When transmitting an e-mail from the mobile phones 1 and 2, first, authentication processing of the mobile phones is performed. Each mobile phone stores authentication information such as a serial number and a password in a storage unit in addition to the telephone number assigned so as not to be duplicated, and uses this authentication information to establish a formal contract when starting communication. Authentication processing of whether or not the telephone is performed is performed. In such a system, authentication information (information such as a contractor (user), a bank account number, etc.) such as a serial number of a mobile phone and a personal identification number is registered in an exchange side of a mobile phone network, and when communication is started. Then, the mobile phone automatically reads out the authentication information such as the serial number and the password stored in the authentication information storage unit and transmits it. The exchange checks the authentication information, such as the serial number and password, from the mobile phone against the registered (contracted) authentication information, such as the serial number and password. Start communication as a contracted mobile phone.
Next, the user of the mobile phone attaches the image data as an image file to the e-mail photographed by the electronic camera and transmits the image data to the server 4 (e-mail server) of the service center. The e-mail is transmitted to, for example, a mail address of a server, and includes a mail address of a reception destination (the personal computer terminal 5), an address of a mobile phone, a name of a transmission source (a contractor), and the like, which are final destinations. ing.
At the start of the e-mail service, the service center authenticates the user of the service using the ID and the password, and after the authentication process is completed, the service is started.
[0004]
The configuration of a conventional electronic camera-equipped mobile phone will be described with reference to FIG.
The image signal of the subject photographed by the imaging unit 1-1 is subjected to normal signal processing, compression, correction processing, and the like in a signal processing / image data storage unit 1-2, and image data is generated and stored in the storage unit. Is done. This image data is transmitted to the network via the transmission / reception unit 1-3 of the telephone unit. At the start of the transmission, the authentication information stored in the storage unit 1-4 of the mobile phone is used as described above.
Referring to FIG. 2B, a configuration of a conventional electronic camera having a copyright data embedding function and a mobile phone will be described.
The image signal of the subject photographed by the imaging unit 3-1 is subjected to normal signal processing, compression, correction processing, and the like in a signal processing / image data storage unit 3-2 to generate image data, which is stored in the storage unit. You. Copyright data held in the copyright data storage unit 3-4 is embedded in the image data in the digital watermark data insertion unit 3-3. The digital watermark inserted image data is transmitted to the mobile phone 2 and output to the network 6.
In the copyright data storage unit 3-4, copyright data (that is, the name of the copyright holder (name of the photographer), the identification data of the electronic camera (such as the serial number), etc.) are input and held in advance. The copyright data is registered and managed by a public organization or the like.
[0005]
[Problems to be solved by the invention]
Information such as copyright data is not embedded in image data photographed by an electronic camera built in the conventional mobile phone shown in FIG. 2A. Therefore, since image data, which is electronic data, is easy to copy and falsify, it may be used, falsified, or sold without the permission of the copyright holder, and it is difficult to protect copyrights.
In the conventional electronic camera shown in FIG. 2B, in which copyright data is embedded as an electronic watermark in image data, an operation of inputting and holding the copyright data in the electronic camera is required, and the copyright data is stored in the electronic camera. An organization that registers and manages is required.
Since the electronic camera built into the mobile phone can be easily photographed without realizing its use, voyeurism may be performed and image data may be transmitted illegally, and a preventive measure therefor is desired. .
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention uses a subscriber's authentication information stored in advance in a mobile phone as digital watermark data (copyright data), so that a user (subscriber) of the mobile phone can use a special service. Copyright data can be embedded in image data without performing an operation necessary to embed such copyright data.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 3 shows a configuration example of a mobile phone with an electronic camera according to the present invention.
The image signal of the subject photographed by the imaging unit 10-1 is subjected to signal processing in a signal processing / image data storage unit 10-2 to be converted into image data, and is stored in the storage unit. The digital watermark data insertion unit 10-3 reads out the subscriber authentication information of the mobile phone from the authentication information storage unit 10-5 of the mobile phone, and embeds the digital watermark data (authentication information) in the image data. The digital watermark inserted image data is transmitted from the transmission / reception unit 10-4 to the network 6.
[0008]
The present invention embeds copyright data in image data by eliminating the need for a new copyright data input operation and a storage unit for holding the new copyright data by using the contractor authentication information held in the mobile phone as the copyright data. It becomes possible. In addition, personal information (contractor name, etc.) corresponding to the contractor authentication information of the mobile phone is registered and held in the exchange at the time of purchase of the mobile phone, and the copyright holder (photographer) can be identified by reading out the information. Can be.
In addition, electronic camera-equipped mobile phones can be easily used for voyeurism, etc., because they are easy to shoot without realizing their use, but prior operations for embedding copyright data in image data are performed. Since there is no need for this, it is possible to embed the subscriber authentication information of the mobile phone in the image data without the knowledge of the photographer (user), and it is possible to expect the effect of preventing voyeurism and the like.
[0009]
【The invention's effect】
As described above, the present invention uses the mobile phone contractor authentication information stored in advance as copyright data to be embedded in image data captured by a mobile phone with an electronic camera, thereby enabling input and storage of copyright data. No prior operation such as is required, and a storage unit for holding copyright data is not required, so that downsizing can be achieved.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an image data transmission system using a mobile phone.
FIG. 2A is a configuration diagram of a conventional mobile phone with an electronic camera, and FIG. 2B is a configuration diagram of an electronic camera with a copyright data embedding function and a mobile phone.
FIG. 3 is a configuration diagram of a mobile phone with an electronic camera according to the present invention.
[Explanation of symbols]
1, 10: mobile phone with electronic camera, 2: mobile phone, 3: electronic camera, 4: server, 5: personal computer terminal, 6: network 10-1 ... Imaging unit, 10-2: signal processing / image data storage unit, 10-3: digital watermark data insertion unit, 10-4: transmission / reception unit, 10-5: authentication information storage unit

Claims (1)

An electronic camera-equipped mobile phone including an electronic camera unit and a transmission unit having a function of transmitting image data of a subject captured by the electronic camera unit to a network,
A storage unit for storing authentication information of a mobile phone subscriber,
The electronic camera unit includes an image data generation unit that generates image data of a photographed subject, and a digital watermark data insertion unit that extracts authentication information of the contractor from the storage unit and embeds the digital watermark in the image data. Mobile phone with electronic camera.

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