KR20060013689A - Wireless telecommunication devices with the iris-recognition function - Google Patents

Abstract

The present invention relates to a portable wireless communication device having an iris recognition function, and to a wireless communication device (a mobile communication terminal, a wireless communication PDA, a smart phone, and all wireless communication devices including an IMT 2000) equipped with an image input device. After receiving the user's iris image, the iris recognition data is generated through a series of processes such as image processing, encryption, and compression, and the generated iris recognition data is stored in the wireless communication device. In the first step of storing in the unit, and when the user identification is required when using the wireless communication device, receiving the iris image of the user, the new iris data through the same image processing process as the first step Generate an image, extract an iris pattern of the generated new iris data, and generate an image in the first step. A second method of extracting the iris recognition data previously stored in the iris recognition data storage unit and extracting the iris pattern in the same manner as above, and comparing and analyzing the two iris patterns to provide the user's identity. And a step of implementing security and control of the wireless communication device owned by the user through the first and second steps, thereby preventing unauthorized use of the wireless communication device.

 Wireless communication device, security system, image input device, iris recognition

Description

Wireless Telecommunication Devices with The Iris-Recognition Function

1 is an internal configuration diagram of a personal wireless communication device equipped with an image or image input device in a wireless system.

2 is a diagram illustrating an embodiment of an iris image input to an LCD screen of a wireless communication device.

3 is a more detailed internal configuration diagram of an iris recognition system of a wireless communication device.

4 is a diagram illustrating an example of improving quality of an iris image input to an image processing processor.

FIG. 5 is an exemplary diagram illustrating feature extraction and image information separation of an iris using separation of an iris image and a polar coordinate system.

6 is an embodiment showing encryption and compression of separated iris data.

7 is a flowchart illustrating a process of collecting and storing an iris image in an iris recognition system, and then processing the image, encrypting, compressing, and storing the image in an iris recognition system.

8 is a flowchart illustrating a process of verifying the user identity using an iris recognition system.

<Description of main parts of drawing>

10: image / image input device 20: iris recognition system

21: iris recognition interface unit 22: iris image collection unit

23: Temporary storage of the iris image 24: Image processing processor

25: data encryption processing unit 26: data compression unit

27: data storage unit 28: decompression unit

29: decryption unit 30: iris pattern extraction unit

31: iris data comparison and analysis unit

The present invention uses the wireless communication device (mobile communication terminal, wireless communication PDA, smart phone, all wireless communication devices including IMT 2000) equipped with an image input device, after receiving the user's iris image, image processing A first step of generating data for iris recognition through a series of processes, such as encryption and compression, and storing the generated iris recognition data in an iris recognition data storage unit in the wireless communication device, and when using the wireless communication device. When the user's identity is required, the iris image of the user is input, new iris data is generated through the same image processing as the first step, and the iris pattern of the generated new iris data is generated. Extracting, and storing the iris recognition data previously stored in the iris recognition data storage in the first step. And extracting the iris pattern in the same manner as described above after decompressing, and comparing and analyzing the two iris patterns to provide the user's identity. By implementing the security and control of the user-owned wireless communication device through the system to prevent fraudulent use of the wireless communication device.

Biometrics using biometrics has almost no risk of loss, theft, forgetting, or copying due to external factors, and has a feature that enables tracking of security breaches. Such biometric technologies include palmprint recognition, facial recognition, vein recognition, voice recognition, retina recognition, fingerprint recognition, and iris recognition.

Among the biometric methods, palmprint recognition, facial recognition, and vein recognition are not suitable for mounting in a wireless system because they have a high false recognition rate, a principle of constant immutability, and miniaturization of equipment size.

Among the biometric methods, voice recognition uses Speech Verification System or Voice Print System, and can be easily recognized from a remote location, so it can be easily implemented in a wireless communication device equipped with voice communication. There is this. However, voice recognition cannot be recognized when the user's neck is restless, errors are likely to occur when recording or intentionally mimicking the voice of others, and the recognition rate is reduced due to the high noise in wireless environment. It is not suitable for practical use as a method of biometrics in communication systems.

Among the biometric methods, retinal recognition utilizes that the composition of the capillaries located on the back of the eye has the characteristics of lifelong implications, and after reflecting a weak red ray into the eye to read the pattern of the retinal capillaries, the reflected backlight is reflected. Measure Therefore, in order to recognize a successful retinal capillary pattern, the eye must be removed and the eye focused on the reflection of red light in the dark areas of the round cylinder of the eyepiece. Such retinal recognition has the advantage of satisfying a high degree of security, but is also unsuitable for mounting in a small device such as a wireless communication system, and there are disadvantages of causing inconvenience and discomfort as well as causing fear.

Among the biometric methods, fingerprint recognition uses an immutable fingerprint in which sweat glands are raised to form a constant flow. There are two types of fingerprint recognition methods, an optical method and a non-optical method. Optical fingerprint recognition methods include a fingerprint recognition method using a prism and a fingerprint recognition method using a hologram, and a non-optical fingerprint recognition method includes a fingerprint recognition method using a sensor array, a fingerprint recognition method using an electric field, and an ultrasonic wave. There is a fingerprint recognition method using (Ultrasonic Wave). Among them, the fingerprint recognition method applicable to the wireless communication system is a fingerprint recognition method using a non-optical sensor array and an electric field, but is vulnerable to static electricity and external shock, and is easily oxidized by chemicals in the body and air, and sweat or moisture Has a disadvantage in that the false recognition rate is increased when it is buried in the sensor.

Among the biometric methods, the iris recognition method uses a constant immortal iris that is formed before the age of three after birth, and uses texture information such as iris pattern, shape, and color, and has almost no false recognition rate and false rejection rate. Has Unlike the retina, the iris is located on the surface of the eye, so it is not affected by intraocular diseases, irrelevant to the redness of the eye, and unlike the retina recognition, which requires the eye to be in close contact with the eyepiece, there is no discomfort and discomfort in use. Image information captured by cameras or CCD cameras can be easily processed through image processing. In addition, the type of pattern used for iris recognition is 1078 or more, which can be used as a more complete biometric method than a fingerprint having a pattern type of about 1012. In addition, various methods have been researched that can fundamentally prevent iris theft through body harm and a corresponding method by sensing wavelengths occurring in the eyes using light emitting diodes and the like.

Recently, various service methods using a portable personal wireless communication device, including a payment method using a portable personal wireless communication device, have been developed, and the usage of the portable personal wireless communication device has increased significantly due to the development of wireless Internet technology. Accordingly, the importance of security and control of portable personal wireless communication devices has increased even more than when used for simple communications in the past. That is, the economic loss due to the unauthorized use of the portable personal wireless communication device due to the loss or theft of the portable personal wireless communication device is greater than ever. However, despite the importance of security and control of the portable personal wireless communication device as described above, the security and control system of the existing portable personal wireless communication device is insignificant. For example, the security and control system through simple text-based encryption processing, which is most commonly used, can simply solve the above password with simple software, and it is inconvenient for the security and control system that undergoes wired / wireless internet authentication procedures. In addition, there is a disadvantage that the operation is possible.

In order to solve the above problems, the present invention utilizes a wireless communication device (mobile communication terminal, wireless communication PDA, smart phone, all wireless communication devices including IMT 2000) equipped with an image input device, the user's iris After receiving the image, the first process for generating the iris recognition data through a series of processes such as image processing, encryption, compression, and storing the generated iris recognition data in the iris recognition data storage in the wireless communication device And receiving the user's iris image when the user's identity is required when using the wireless communication device, generating new iris data through the same image processing as the first step, and generating the iris image. Extracting the iris pattern of the new iris data, and in the first step, the iris recognition data storage unit After deciphering and compressing the pre-stored iris recognition data, the iris pattern is extracted in the same manner as described above, and the iris patterns are compared and analyzed to mutually compare and analyze the two iris patterns. It is an object of the present invention to provide a system for preventing unauthorized use of a wireless communication device by implementing security and control of the user-owned wireless communication device through the first and second steps.

The present invention relates to a wireless communication device security and control system using an iris recognition system, and includes a wireless communication device (a mobile communication terminal, a wireless communication PDA, a smart phone, and an IMT 2000) equipped with an image input device. After receiving the user's iris image, the iris recognition data is generated through a series of processes such as image processing, encryption, and compression, and the generated iris recognition data is recognized in the wireless communication device. A first step of storing the data in the data storage unit, and when the user identification is required when using the wireless communication device, receives the iris image of the user, and through the same image processing process as the first step Generating iris data, extracting an iris pattern of the generated new iris data, and In step 1, after decrypting and compressing the iris recognition data previously stored in the iris recognition data storage unit, the iris pattern is extracted in the same manner as above, and the two iris patterns are compared and analyzed to confirm the user's identity. The system is configured to provide a second step, and implements security and control of the wireless communication device owned by the user through the first and second steps, thereby preventing unauthorized use of the wireless communication device.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following examples are one of various methods for most appropriately explaining the present invention, and the present invention is not limited to the following examples.

1 is an internal block diagram of a personal wireless communication device equipped with a video or image input device.

An iris recognition system using a wireless communication device is divided into an RF processing unit, an IF processing unit, and a BASEBAND processing unit, and includes a small image or image input device 10 such as a CCD (Charge Coupled Device) camera, and a BASEBAND processing unit. This is achieved by mounting an iris recognition system.

The image or image input device 10 of the wireless communication device is composed of an image acquisition unit and an image output unit. The image acquisition unit is composed of CCD elements. The iris image is input as shown in 2. Image acquisition units generally meet International Standards (CCIR: Comite Consultatif International des Radio communications or EIA: Electronics Industries Association). According to this specification, the response rate of the image acquisition unit is 1 / 50s for CCIR and 1 / 60s for EIA. In addition, since the color input is not necessarily required when the image or image input device 10 is used only for iris recognition, a color processing unit using a filter and a prism is not required for the image or image input device 10, which is more useful. It is possible to paint. In addition, due to the selectivity of the CCD device, not only visible wavelengths but also infrared and near infrared regions can be processed. If the iris recognition dedicated image input apparatus 10 uses a CCD device having excellent response speed in the infrared or near infrared region, iris recognition can be performed even in a dark place at night. The iris image input by the image collection unit of the image or image input device 10 is transferred from the video signal output unit to the iris recognition system through the data bus to the BASEBAND processing unit.

3 is a more detailed internal block diagram of an iris recognition system of a wireless communication device.

The iris recognition system 20 of the wireless communication device includes an iris recognition interface 21, an iris image collector 22, an image processing processor 24, a data encryption processor 25, a data compression unit 26, and an iris. The recognition data storage unit 27, the iris recognition data decompression unit 28, the iris recognition data decryption unit 29, the iris pattern extraction unit 30, and the iris data comparison and analysis unit 31. Description of each part of the iris recognition system 20 is as follows.

Image data input to the iris recognition system 20 through the video or video signal output unit of the image input device 10 are temporarily stored by the iris image collecting unit 22 through the iris recognition interface 21. do. The reason for temporarily storing the iris image is to improve the quality of the iris image through image processing.

The image processing processor 24 of the iris recognition system 20 may zoom in and zoom out an image, level values for each channel, contrast, and brightness. Image processing of the input iris data using color, hue, and saturation. The iris image input from the wireless system is heavily influenced by the surrounding environment, and the input image may not be used for iris recognition in some cases. The image processing processor 24 improves the quality of the iris image by using a software method such that the input image can be used for iris recognition as shown in FIG. After determining the boundary between the pupil and the iris as shown in the iris figure 5, the left radius and the right radius of the iris are determined, and the iris image is separated using this information. When the boundary information of the iris is set, the polar coordinate system is applied to extract the feature of the iris, and the image information is separately stored.

The data encryption processing unit 25 of the iris recognition system 20 encrypts the separated iris data by a given algorithm as shown in FIG. 6, and the data compression unit 26 compresses the encrypted iris data to reduce the data size. As such, the iris data separated by the image processing processor 24 and subjected to the encryption and compression process, even if exposed to a third party due to the loss or theft of the wireless communication device, provides a device that makes it difficult to forge the iris data. do.

The iris recognition data storage unit 27 of the iris authentication system stores the iris recognition data that has undergone the encryption and compression process, and transmits the stored iris recognition data to the decompression unit when the iris confirmation request is delivered.

The iris recognition data decompression unit 28 of the iris recognition system 20 decompresses the iris recognition data previously stored in the iris recognition data storage unit 27, and the iris recognition data decryption unit described below. Send data to (29).

The iris recognition data decryption unit 29 of the iris recognition system 20 decrypts the data received from the iris recognition data decompression unit 28, and the data to the iris pattern extraction unit 30 described below. Send it.

The iris pattern extraction unit 30 of the iris recognition system 20 extracts a local pattern from iris data transmitted from the iris recognition data decryption unit 29 and new iris data newly input from the user for iris confirmation. An appropriate band-shaped data region is divided by using a coordinate system applied to the image processing processor 24 of the iris recognition system 20. The divided tracks are converted using a 2D Gabor filter, encoded using protection of the real part and the imaginary part of the data, and the iris unique code of the new iris data and the iris data transferred from the decryption unit 29 are encoded. It generates and transfers the generated two iris unique codes to the iris recognition data comparison and analysis section 31 described below.

The iris recognition data comparison / analysis unit 31 of the iris recognition system 20 requires the iris recognition data and the iris recognition data inputted for identification of the user when the user identification is required when the wireless communication device is used. The user identifies himself / herself by comparing and analyzing the iris unique codes of the iris recognition data previously stored in the storage unit 27.

The iris recognition interface unit 21 of the iris authentication system displays the result confirmed by the iris recognition data comparison and analysis unit 31 on the LCD screen of the wireless communication device, or outputs the verification result through the speaker phone. . In addition, if it is determined that the iris recognition data comparison and analysis unit 31 does not have the same iris, the iris input is output to the user again.

In addition, when the user identity verification is required when using the wireless communication device, the iris recognition data storage unit 27 transmits the extraction signal of the pre-stored iris recognition data.

7 is a flowchart illustrating a process of collecting and storing an iris image in the iris recognition system 20, and then processing the image, encrypting, and compressing and storing the iris image.

The iris recognition system 20 receives the iris image from the image or the image input apparatus 10 (701), and then checks whether the information is possible for iris recognition (702). If there is an identifiable iris image in the image, the iris image collector 22 stores the image in a temporary storage device (704). On the contrary, if the iris is not found in the collected image or if an image of bad quality is collected that cannot be used, the iris image collector 22 requests the user to reenter the iris image through the iris recognition interface 21. A request is made (703).

When the iris image is collected from the iris image collecting unit 22 of the iris recognition system 20, the image processing unit 24 removes the image interference effect caused by wearing glasses or contact lenses, and analyzes the iris pattern. The image is enlarged or reduced at 705. When the basic image processing process is completed, the image processing processor 24 determines the boundary between the pupil and the iris after securing the pupil area using the binarization image data (706), and determines the left and right boundaries of the iris based on this. (707). Based on the inner and outer boundaries of the iris thus determined, the image processing processor 24 separates the iris from the base image using the polar coordinate system (708), and then uses the polar coordinate system to form a band of the iris as shown in FIG. Split into tracks.

The data encryption processing unit 25 of the iris recognition system 20 rearranges the divided iris data according to a given rule, and encrypts the iris data using an encryption algorithm (709). The data compression unit 26 compresses the iris data processed by the encryption processing unit 25 to reduce the size (710).

When the processing of the iris data input from the iris recognition system 20 ends, the iris data is stored in the iris recognition data storage unit 27 (711). When the storing is completed, the iris recognition interface unit 21 deletes the temporarily stored iris image and related information (712). If the deletion is not completed (713), the deletion process is continuously performed.

8 is a flowchart illustrating a process of verifying the user identity using the iris recognition system 20.

When the user identity verification is required when using the wireless communication device, the iris recognition system 20 extracts the iris recognition data previously stored in the iris recognition data storage unit 27 through the iris recognition interface 21. Signal and input the iris image of the user by the same method as in FIG. 7 (801-804), and perform image processing (805) in step 701-704 of FIG. In order to extract the local pattern, an appropriate band-shaped data region is divided using the coordinate system applied to the image processing processor 24 of the iris recognition system 20 (steps 805-808). The divided tracks are transformed using a 2D Gabor filter, encoded using protection of the real part and the imaginary part of the data to generate an iris unique code of the new iris data (809), and the generated new iris data. The iris unique code is transmitted to the iris recognition data comparison and analysis unit 31 (810).

The user's identity is verified by comparing and analyzing the iris recognition data inputted for the user's identity and the iris unique code of the iris recognition data previously stored in the iris recognition data storage 27.

The iris recognition interface unit 21 of the iris authentication system displays the result confirmed by the iris recognition data comparison and analysis unit 31 on the LCD screen of the wireless communication device, or outputs the verification result through the speaker phone. (816). In addition, if it is determined that the iris recognition data comparison and analysis unit 31 does not have the same iris, the iris input is output to the user again.

In addition, if the user identity verification is required when using the wireless communication device, the iris recognition data storage unit 27 transmits the extraction signal of the pre-stored iris recognition data (811).

The iris recognition data storage unit 27 receiving the pre-stored extraction signal of the iris recognition data from the iris recognition interface unit 21 transfers the previously stored iris recognition data of the user to the decompression unit, and decompresses the decompression unit. The unit decompresses the user's iris recognition data (812) and then sends the data to the decryption unit (29). The decryption unit 29 decrypts the data received from the iris recognition data decompression unit 28 (813), sends data to the iris pattern extraction unit 30, and the iris pattern extraction unit 30 ) Extracts the pattern of the iris data to generate the iris unique code in the same manner as generating the iris unique code of the new iris data (814), and the generated iris unique code is also compared with the iris recognition data analysis unit 31. To pass.

The iris recognition data input for identification of the user transferred to the iris recognition data comparison and analysis unit 31 and the iris unique code of the iris recognition data previously stored in the iris recognition data storage unit 27 are mutually interchangeable. The user is identified by comparison and analysis (815).

* The result confirmed by the iris recognition data comparison and analysis unit 31 is displayed on the LCD screen of the wireless communication device or provided, or the verification result is output through the speaker phone (816). In addition, when the iris recognition data comparison / analysis unit 31 confirms that the iris is not the same, the iris input is output to the user again (803).

Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings as described above, the above embodiments are one of several methods for explaining the present invention most appropriately, and the present invention will be described in the following embodiments. It is not limited.

For example, the encryption process, the compression process, and the decompression and decryption process of the iris data specify that there is no problem in the implementation of the present invention, except for the present invention, which is secured because the encryption and compression process is further included. The function is to enhance the effect, because the two processes are excluded because the present invention is not impossible to implement.

In addition, the present invention specifies that the present invention can be implemented only by mutual matching of the iris image data without the iris pantone extractor 30.

According to the present invention, it is possible to prevent the economic loss caused by the illegal use of the portable personal wireless communication device due to the loss or theft of the portable personal wireless communication device, and to maintain the constant iris formed before the age of three after the birth of a human Because of the use, the false recognition rate and false rejection rate in the personal identification process are advantageous.

Claims (1)

A camera having a user's iris image input function; A memory for storing features of an iris image image input from the camera; And a user's identity verification, an iris data comparison analyzer configured to process the user's verification by comparing the characteristics of the iris image image newly input through the camera with the characteristics of the iris image image previously stored in the memory. Portable wireless communication device with an iris recognition function.

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