TWI544358B - Rfid acess control method and system combining face recognition based on secret splitting and rfid tag used therein - Google Patents

Description

Radio frequency identification access control method and system based on secret separation facial recognition and RF identification tag for it

The invention relates to a radio frequency identification access control method and system and a radio frequency identification tag suitable for the same, in particular to a radio frequency identification access control method and system based on secret separation facial recognition and a radio frequency identification tag suitable for the same.

In recent years, more and more people have adopted automatic inductive access control systems to replace the existing keyhole access control devices, thereby increasing the convenience and safety of use. Among them, radio frequency identification (RFID) technology is a widely used technology, which is equipped with an RFID reader in the access control device, and allows the user to carry an RFID tag. The object, when the user brings the RFID tag close to or aligned with the RFID reader, the RFID reader verifies whether the RFID tag is legal, thereby determining whether to let the user enter.

However, most of the conventional radio frequency identification technologies have the problem of verifying that the card is not recognized. Therefore, some scholars have proposed to integrate face recognition technology in the RFID access control system to solve this verification problem. However, most of these RF recognition access control systems that integrate face recognition will recognize the face. The data is stored in the back-end database. When the person to be identified is close to the RFID access control system, the captured image and the plurality of face recognition data in the back-end database are sequentially identified to determine the identifier to be identified. Is it a qualified user? As a result, the RFID access control system takes a while to compare, and if the back-end database is stolen, it will cause personal privacy problems.

In view of the above problems of the prior art, the object of the present invention is to provide a radio frequency identification access control method and system based on secret separation face recognition and a radio frequency identification tag suitable for the same, thereby further increasing the convenience of use. And security.

To achieve the above objective, the present invention provides a radio frequency identification access control system combining secret recognition based facial recognition, comprising at least: an RFID tag storing at least one registered low frequency face information; a database storing a plurality of registered high frequency faces The coded information; and the access control device, the electrical connection database, the access control device comprises at least: a radio frequency identification reader, an electrical communication radio frequency identification tag, the radio frequency identification reader verifies whether the radio frequency identification tag is legal; the image capture The component captures the face image of the person to be identified; and the processing component is electrically connected to the RFID reader and the image capturing component, and the processing component decomposes the face image into lower frequency components by using wavelet transform technology Identifying the low frequency face information and the higher frequency component of the high frequency face information to be recognized, and encoding the high frequency face information to be identified by the coding technique to generate the high frequency face coded information to be recognized, wherein the processing component passes the verification through the RFID reader Obtain the registered low frequency face information at the RFID tag, and compare with the recognition of the low frequency face information. Frequency face information, if "No", the processing component determines that the person to be identified is unqualified. If "Yes", the processing component retrieves the registered high frequency face code information corresponding to the registered low frequency face information from the database, and compares the identification high frequency Whether the face coding information meets the registered high frequency face coding information, if "No", the processing component determines that the person to be identified is unqualified. If "Yes", the processing component determines that the person to be identified is qualified.

The access control device further includes a near-end storage component and is electrically connected to the processing component. After the processing component determines that the low-frequency face information to be recognized meets the registered low-frequency face information, first searching whether the registered high-frequency face code information corresponding to the registered low-frequency face information is stored in the near-end storage component, and if “yes”, the processing component is The registered high frequency face code information is taken out from the near end storage component. If "No", the processing component then retrieves the registered high frequency face code information corresponding to the registered low frequency face information from the database.

The registered high frequency face coding information and the high frequency face coding information to be identified are respectively a histogram spectrum of the regional dualization pattern feature or a histogram spectrum of the regional ternary pattern characteristic.

In addition, the present invention further provides a radio frequency identification access control method based on secret separation facial recognition, comprising at least the following steps: verifying whether the radio frequency identification tag is legal by using a radio frequency identification reader, wherein the radio frequency identification tag stores at least one registered low frequency face. Information; using the image capture component to capture the face image of the person to be identified; after determining that the RFID tag is legal, the processing component is used to receive the face image, and the face image is decomposed into lower frequencies by wavelet transform technology. The component of the low frequency face information to be identified and the higher frequency component to be identified by the high frequency face information; the processing component is used to encode the high frequency face information to be recognized by the coding technique to generate the high frequency face coded information to be recognized; and the processing component is read by the radio frequency identification The device obtains the registered low-frequency face information stored from the verified RFID tag; and uses the processing component to identify whether the low-frequency face information meets the registered low-frequency face information. If “No”, the processing component determines that the identifier is not recognized. Qualified; if the processing component determines that the low frequency face information to be recognized meets the registered low frequency face , By the processing element is removed from the library corresponding to this registered face information registered one low-frequency coding information face; and using a high frequency processing element than the treated face identification whether the encoding information extracted high frequency registration of the face If the information is "No", the processing component determines that the person to be identified is unqualified. If "Yes", the processing component determines that the person to be identified is qualified.

After determining that the low frequency face information to be recognized meets the registered low frequency face information in the radio frequency identification tag, first searching whether the registered high frequency face coding information corresponding to the registered low frequency face information is stored in the near end storage component, if “yes” The processing component extracts the registered high frequency face code information from the near end storage component. If “No”, the processing component retrieves the registered high frequency face code information corresponding to the registered low frequency face information from the database.

The combination of the present invention is based on the secret identification method for identifying the face recognition, and further includes the following steps: using the processing component to decompose the registered face image into the lower frequency component of the lower frequency component by using the wavelet transform technology and comparing Registering high-frequency face information of high-frequency components; using the processing component to encode high-frequency face information by encoding technology to generate registered high-frequency face code information, wherein registering high-frequency face coded information corresponds to registering low-frequency face information; storing registered low-frequency face information In the RFID tag; and store the registered high frequency face code information in the database.

The registered high frequency face coding information and the high frequency face coding information to be identified are respectively a histogram spectrum of the regional dualization pattern feature or a histogram spectrum of the regional ternary pattern characteristic.

In the step of comparing whether the low-frequency face information meets the registered low-frequency face information, the closest neighbor algorithm is used to calculate the scale space distance between the low-frequency face information to be recognized and the registered low-frequency face information, and determine whether the scale space distance is It is less than the threshold value of the low frequency stage. If “Yes”, it is determined that the low frequency face information to be recognized meets the registered low frequency face information.

Wherein, in the step of comparing whether the high-frequency face coded information is in conformity with the registered high-frequency face coded information, the nearest neighbor algorithm is used to calculate the high-frequency face coded information to be recognized and the registration is high. The distance value between the frequency-coded information is determined, and whether the distance value is less than the high-frequency threshold value, and if YES, it is determined that the high-frequency face coded information to be recognized conforms to the registered high-frequency face coded information.

In addition, the present invention further provides an RFID tag for use in a radio frequency identification access control system based on secret separation face recognition, comprising at least: a tag component, which communicates with the access control device by using radio frequency identification technology, so that the access control device is verified. Whether the RFID tag is legal; and the storage component is electrically connected to the tag component and stores at least one registered low frequency face information. When the access control device verifies that the RFID tag is legal, the storage component transmits the registered low frequency face information to the access control device, The access control device compares whether the registered low frequency face information matches the to-be-identified low frequency face information of the to-be-identified person using the RFID tag.

Therefore, the radio frequency identification access control method and system based on secret separation facial recognition and the radio frequency identification tag suitable for the same according to the present invention may have one or more of the following advantages:

(1) Decomposing and encoding the registered face image for comparison using the wavelet transform technique and coding technique into the registered low frequency face information of the lower frequency component and the registered high frequency face coded information of the higher frequency component, and registering The low frequency face information is stored in the RFID tag, and the registered high frequency face code information corresponding to the registered low frequency face information is stored in the database, so that any one of the RFID tag or the database is lost or stolen. When the information is available, it is unable to obtain complete personal identity information, thus avoiding the violation of personal privacy rights and providing a safer access control security mechanism.

(2) By storing the registered low frequency face information in the RFID tag, the access control device of the present invention can compare the registered low frequency face information in the low frequency face information and the RFID tag without having to compare the database. Multiple low frequency face information in the medium, thus speeding up the recognition rate. In addition, by comparing the registered low frequency face information in the RFID tag, the registered high frequency face code information in the database, and the registered high frequency face code information corresponding to the registered low frequency face information, so that the ratio is When the high frequency face coding information and the registered high frequency face coding information are to be recognized, the registered high frequency face coding information corresponding to the registered low frequency face information can be directly obtained and compared without having to register multiple registrations in the database. Frequency face coding information, so the recognition rate can be further accelerated.

100‧‧‧RF tags

110‧‧‧Label components

120‧‧‧Storage components

200‧‧‧Database

300‧‧‧Access identification device

310‧‧‧RF reader

320‧‧‧Image capture component

330‧‧‧Processing components

340‧‧‧ Near-end storage components

400‧‧‧ entrances and exits

810-992‧‧‧Steps

FIG. 1 is a system block diagram of a radio frequency identification access control system based on secret separation facial recognition according to the present invention.

FIG. 2 is a schematic diagram showing the implementation of the radio frequency identification access control system based on secret separation facial recognition according to the present invention.

Figure 3 is a flow chart showing the steps of the radio frequency identification access control method based on secret separation face recognition in the registration phase of the present invention.

Figure 4 is a flow chart showing the steps of the RF identification access control method based on secret separation face recognition in the verification phase of the present invention.

Please refer to FIG. 1 to FIG. 4 , wherein FIG. 1 is a system block diagram of a radio frequency identification access control system based on secret separation face recognition according to the present invention, and FIG. 2 is a combination based on secret separation according to the present invention. A schematic diagram of the implementation of the radio frequency identification access control system for face recognition, and FIG. 3 is a flow chart of the steps of the radio frequency identification access control method based on secret separation facial recognition in the registration phase, and FIG. 4 is a flowchart of the present invention. The combination of the radio frequency identification access control method based on secret separation facial recognition is a flow chart of steps in the verification phase.

As shown in FIG. 1 to FIG. 4, the radio frequency identification access control system based on secret separation facial recognition includes at least a radio frequency identification tag (RFID tag) 100, a data library 200, and an access control device. 300. The radio frequency identification tag 100 stores one or more registered low frequency face information, and the database 200 stores a plurality of registered high frequency face coding information, and the access control device 300 can be installed on the side of the entrance or exit 400 or the side of the entrance and exit 400, for example. The access port 400 can be, for example, a doorway of a home, a door of a factory, a door of a factory, a door of a door, a door of a school, a door of a door, or other entrances and exits that require access control by a person. The access control device 300 is electrically connected to the database 200 and includes at least a radio frequency. An RFID reader 310, an image capture component 320, and a processing component 330 are provided. The database 200 can be, for example, a large-capacity storage element or a cloud database. In addition, the RFID reader 310 electrically communicates with the RFID tag 100 and verifies whether the RFID tag 100 is legitimate. The image capturing component 320 captures a human face image of the person to be recognized. The image capturing component 320 can be, for example, a device capable of capturing images, such as a camera device, a photographic device, or an imaging device. In addition, the processing component 330 is electrically connected to the RFID reader 310, the image capturing component 320, and the database 200, and performs processing operations of registration and verification.

For example, the RFID tag 100 can include at least a tag component 110 and a storage component 120. The tag component 110 can be configured, for example, with a radio frequency identification communication component to communicate with the access control device 300 using radio frequency identification (RFID) technology. The access identification device 300 can verify whether the RFID tag 100 is legal by the communication performed thereby. The storage component 120 is electrically connected to the tag component 110 and stores one or more registered low frequency face information. When the access control device 300 verifies that the RFID tag 100 is legal, the storage component 120 can transmit the stored registered low frequency face information to the access control identifier. The device 300 is configured such that the access control device 300 can identify the person to be identified using the image capturing component 320 The low frequency face information is compared with the registered low frequency face information obtained from the storage component 120 of the RFID tag 100 to determine whether the person to be identified is legal.

The radio frequency identification access control system based on the secret separation facial recognition can store the registered low frequency face information in the radio frequency identification tag 100 and store the registered high frequency face coding information in the data base 200 through a registration stage. For example, the access control device 300 can first obtain at least one registered face image (step 810), and the registered face image can be transmitted to the access control device, for example, from an external device (not shown) through any communication protocol. 300. Alternatively, the registrant may be photographed at this registration stage to obtain a registered face image. Each of the registrants may, for example, have one or more registered face images to indicate their different states (for example, a serious face, a face or a smile), thereby increasing the convenience of subsequent verification.

After the access control device 300 obtains the registered face image, the processing component 330 can be used to decompose the registered face image into the registered low frequency face information of the lower frequency component and the registered high frequency face of the higher frequency component by using the wavelet transform technology. Information (step 820). In step 820, the processing component 330 may first convert the registered face image into an image spectrum, and decompose the registered face image into a lower frequency component of the lower frequency component according to the frequency band in the image spectrum. Registration of high frequency face information of frequency components. The registered high frequency face information may have, for example, three high frequency face information indicating three directions (horizontal, straight, and oblique). In addition, the processing component 330 can also perform one or more wavelet transforms according to the resolution of the registered face image, thereby obtaining the registered low frequency face information of a specific size, identification or resolution, and then storing the registered low frequency face information. The RFID tag 100 is in the process (step 830). The registered low frequency face information may have, for example, more common features of the face, such as a face contour, a position of a facial organ, and the like; and the registered high frequency face information contains most of the facial local changes, such as illumination. , expressions or dress up. Wherein, since the registered low frequency face information only has the basic image, and the radio frequency identification tag 100 only stores the registered low frequency face Information, but there is no registered high-frequency face information, so if the RFID tag 100 is lost, it will not allow others to obtain complete personal identity information, so it can avoid the problem of personal privacy violation and provide more Secure access control security mechanism.

In addition, the processing component 330 can encode the registered high frequency face information obtained by the encoding technique to generate the registered high frequency face coding information (step 840). For example, after the processing component 330 obtains the registered high frequency face information in step 820, the local binary patterns (LBP) technology and the local ternary patterns (LTP) may be utilized. The technology or other suitable coding technique encodes the registered high frequency face information to generate a region binarized pattern feature histogram spectrum, a regional ternary pattern feature histogram spectrum or other irreversible registered high frequency face coding. News. Taking the area binary pattern (LBP) technology as an example, the processing component 330 may firstly mark each pixel in the registered high frequency face information as a center point, and form a center point with its neighboring pixels to form n*n. a block (for example, 3*3), and the grayscale value of the center point is used as a comparison base value. If the grayscale value of the neighborhood pixel in the block is greater than or equal to the comparison base value, then the block is in the block. The neighborhood pixel is encoded as "1", otherwise the code is "0". Thereafter, each neighboring pixel in the block is given a different weight value (for example, one of 1, 2, 4, 8, ... or 128) and the weight values are not repeated, and the total area is added. The value of the code within the block multiplied by the weight value to obtain the value representing this center point. After that, the values are combined to obtain the registered high frequency face code information corresponding to the registered high frequency face information.

In other words, since the registered high frequency face information corresponds to the registered low frequency face information, the registered high frequency face coded information corresponding to the registered low frequency face information can be obtained. However, the inventor would like to emphasize that the registration of high frequency face information by the regional binary pattern (LBP) technique is merely an illustrative example and does not limit the scope of protection of the present invention. For example, the case can also use regional ternary pattern (LTP) technology to effectively reduce dimensionality and maintain anti-noise ability. After step 840, the processing component 330 transmits the registered high frequency face code information to the capital. The registered high frequency face coded information is stored in the repository 200 in the repository 200 (step 850). Wherein, since the processing component 330 performs irreversible encoding on the registered high frequency face information in step 840, when the data repository 200 is stolen, the personal identity data cannot be lost, so the invention can avoid personal privacy. The issue of violation of rights and the provision of safer access control security mechanisms. In other words, the present invention stores the registered low frequency face information and the registered high frequency face code information in the RFID tag 100 and the database 200, so that the user does not lose the complete personal identity data, thereby avoiding the individual. The issue of privacy violations and the provision of safer access control security mechanisms.

After the registration phase is completed, when an identifier to be transmitted carries the RFID tag 100 and the RFID access control system of the present invention is to be used, the access control device 300 can first use the RFID reader 310 to verify that the identifier is carried by the identifier. Whether the RFID tag 100 is legal (step 910), if "No", the access control device 300 determines that the RFID tag 100 is illegal (step 911), so no subsequent verification action will be performed, and even more, the access control The identification device 300 can also have a warning component (not shown) to warn the to-be-identified person or the constructor or security personnel of the access control identification device 300. If the access control device 300 determines that the RFID tag 100 is legal, the image capturing component 320 captures the human face image of the to-be-identified person (step 920), and when the processing component 330 receives the image capturing component 320. After the face image, the face image can be decomposed into lower frequency components of the lower frequency component and the higher frequency component to be recognized by the wavelet transform technology (step 930). The wavelet transform technology used by the processing component 330 to decompose the facial image is substantially the same as the wavelet transform technique used in the decomposed registered facial image in the foregoing step 820, and thus will not be described herein.

After step 930, the processing component 330 can encode the to-be-identified high-frequency face information by an encoding technique to generate a high-frequency face encoding information to be recognized (step 950). The encoding operation performed by the processing component 330 in step 950 to identify the high-frequency face information is substantially the same as the registration in the foregoing step 840. The encoding operation performed by the high frequency face information will not be described here. Also, the encoding technique used in step 940 should be identical to the encoding technique used in step 840 above. That is, if the registered high frequency face coding information is, for example, a region binary pattern type histogram spectrum, the high frequency face coding information to be identified is also a region binary pattern type histogram spectrum; if the high frequency face coding is registered The information is, for example, a histogram spectrum of the ternary pattern of the region, and the high-frequency face coding information to be identified is also a histogram spectrum of the ternary pattern of the region.

In addition, after the processing component 330 obtains the low frequency face information to be recognized, the registered low frequency face information stored in the RFID tag 100 can be obtained from the RFID tag 100 verified by the step 910 through the RFID reader 310. Step 940). Thereafter, the processing component 330 determines whether the low frequency face information to be recognized meets the registered low frequency face information stored in the RFID tag 100 (step 960). If "No", the processing component 330 determines that the unidentified person is unqualified (step 991), therefore, no subsequent verification actions will be performed. Moreover, the access control device 300 can also alert the constructor or security personnel of the to-be-identified person or the warning access control device 300.

In step 960, processing component 330 can perform a comparison action using a nearest neighbor (NN) algorithm. For example, the processing component 330 may first define a comparison point in the low frequency face information, and calculate a scale space distance between the comparison point in the low frequency face information to be recognized and the corresponding comparison point in the registered low frequency face information. It is further determined whether the calculated scale space distance is less than a set low frequency stage threshold. If “Yes”, it is determined that the to-be-identified low frequency face information conforms to the registered low frequency face information stored in the RFID tag 100.

Thereafter, if the processing component 330 determines that the low frequency face information to be recognized conforms to the registered low frequency face information stored in the RFID tag 100, the processing component 330 retrieves the registered high frequency face code information corresponding to the registered low frequency face information (step 970). Wherein, the processing component 330 can utilize, for example, a radio frequency identification tag The serial number of 100 or the face number of the registered low frequency face information requires the database 200 to transmit the registered high frequency face code information corresponding to the serial number or the face number to the processing component 330. Alternatively, the access control device 300 can further include a near-end storage component 340 electrically coupled to the processing component 330 and can store registered high-frequency face encoding information, such as a frequent registrant, such that the processing component 330 is in step 970. The registered high frequency face code information corresponding to the registered low frequency face information can be searched for stored in the near end storage component 340. If YES, the processing component 330 takes the corresponding registered high frequency face from the near end storage component 340. Encoding information, if "No", the processing component 330 then retrieves the registered high frequency face coding information corresponding to the registered low frequency face information from the database 200. Thereby, the present invention can further reduce the processing time when data is transmitted. Wherein, when the information in the database 200 is updated, the processing component 330 can obtain the updated information, and transmit the updated information to the near-end storage component 340 and replace the updated information, thereby synchronously updating the near-end. The information in element 340 is stored.

When the processing component 330 obtains the registered high frequency face code information corresponding to the registered low frequency face information, it compares whether the high frequency face coded information to be recognized generated in step 950 meets the registration taken in step 970. The high frequency face coding information (step 980), if "no", the processing component 330 determines that the person to be identified is unsatisfactory (step 991); if "yes", the processing component 330 determines that the person to be identified is qualified (step 992) In order for the person to be identified to be able to enter and exit. In the alignment of step 980, processing component 330 can perform the alignment action using the nearest neighbor (NN) algorithm. For example, the processing component 330 can calculate a distance value between the high frequency face coded information to be recognized and the registered high frequency face coded information, and determine whether the distance value is less than a set high frequency stage threshold value, and if yes, Then, the processing component 330 determines that the high frequency face coded information to be recognized conforms to the registered high frequency face coded information; if no, the processing component 330 determines that the high frequency face coded information to be recognized does not meet the registered high value. Frequency face coding information.

That is, in step 980, the processing component 330 only needs to register the registered high frequency face code information corresponding to the registered low frequency face information in step 960, and the high frequency face to be recognized obtained in step 950. The encoded information is compared between the two without the need to compare the other registered high frequency face coded information in the database 200. Therefore, the present invention can have a faster recognition rate.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

910-992‧‧‧Steps

Claims (10)

A radio frequency identification access control system combining secret recognition based face recognition includes at least one radio frequency identification tag storing at least one registered low frequency face information, wherein the registered low frequency face information is subjected to a wavelet transform on a registered face image a database storing a plurality of registered high frequency face code information, wherein the registered high frequency face information is formed by performing the same wavelet conversion on the same registered face image, wherein the registered low frequency face information Different from the registered high frequency face information, and the registered low frequency face information and the registered high frequency face information are respectively stored in the RFID tag and the database; and an access control device electrically connected to the database, The access control device includes at least: a radio frequency identification reader electrically communicating the radio frequency identification tag, the radio frequency identification reader verifying whether the radio frequency identification tag is legal; and an image capturing component capturing a face of a person to be recognized And a processing component electrically connected to the RFID reader and the image capturing component, when the RFID reader verifies After the RFID tag is legal, the processing component decomposes the face image into one of the lower frequency components and one of the higher frequency components to be recognized by the wavelet transform technology, and the high frequency face information to be recognized is transmitted through a wavelet component. The encoding technique encodes the high-frequency face information to be recognized to generate a high-frequency face-coded information to be recognized, wherein the processing component obtains the registered low-frequency face information from the verified RFID tag through the RFID reader, and compares Whether the low frequency face information to be recognized obtained from the RFID tag conforms to the registered low frequency face information, if "No", then The processing component determines that the unidentified person is unqualified. If YES, the processing component extracts, from the database, the registered high frequency face coding information corresponding to the registered low frequency face information, and compares the information from the database. Whether the obtained high-frequency face coded information is consistent with the registered high-frequency face coded information obtained, and if “No”, the processing component determines that the person to be identified is unqualified, and if “Yes”, the processing component determines that Those who are to be identified are qualified. The radio frequency identification access control system according to the first aspect of the invention, wherein the access control device further comprises a near-end storage component electrically connected to the processing component, and the processing component determines that the After identifying the low frequency face information and the registered low frequency face information, first searching whether the registered high frequency face code information corresponding to the registered low frequency face information is stored in the near end storage element, and if yes, the processing component is from the The registered high frequency face code information is taken out from the near end storage component. If no, the processing component extracts the registered high frequency face code information corresponding to the registered low frequency face information from the database. The radio frequency identification access control system based on secret facial recognition is described in claim 1, wherein the registered high frequency face coding information and the to-be-identified high frequency face coding information system are each a region dualization. The pattern feature histogram spectrum or each is a region ternary pattern feature histogram spectrum. A radio frequency identification access control method based on secret separation facial recognition includes at least the following steps: verifying whether a radio frequency identification tag is legal by using a radio frequency identification tag, wherein the radio frequency identification tag stores at least one registered low frequency face information, wherein The registered low frequency face information is formed by performing a wavelet transform on a registered face image; and using an image capturing component to capture a face image of one of the persons to be recognized; After determining that the RFID tag is legal, the face image is received by a processing component, and the face image is decomposed into one of the lower frequency components to be recognized by the wavelet transform technology, and the low frequency face information and the higher frequency component are to be recognized. A high-frequency face information is to be recognized; the processing component is used to encode the high-frequency face information to be recognized by an encoding technique to generate a high-frequency face coded information to be recognized; and the processing component is used to pass the verification through the RFID reader. Obtaining the registered low frequency face information at the RFID tag; using the processing component to compare whether the low frequency face information to be recognized obtained from the RFID tag meets the registered low frequency face information, and if “No”, the processing component determines If the processing component determines that the low frequency face information to be recognized meets the registered low frequency face information, the processing component uses the processing component to retrieve a high frequency face code corresponding to the registered low frequency face information from a database. Information, wherein the registered high frequency face information is formed by performing the same wavelet transformation on the same registered face image, wherein The registered low frequency face information is different from the registered high frequency face information, and the registered low frequency face information and the registered high frequency face information are separately stored in the radio frequency identification tag and the database; and the processing component is used to be identified Whether the high frequency face coded information meets the registered high frequency face coded information obtained from the database, if "No", the processing component determines that the person to be identified is unqualified, and if "yes", the processing component determines The person to be identified is qualified. The radio frequency identification access control method based on secret separation facial recognition, as described in claim 4, wherein determining that the low frequency facial information to be recognized conforms to the registration After the low frequency face information, first searching whether the registered high frequency face code information corresponding to the registered low frequency face information is stored in a near end storage element, and if YES, the processing component is taken out from the near end storage element Registering the high frequency face code information, if "No", the processing component then retrieves the registered high frequency face code information corresponding to the registered low frequency face information from the database. The radio frequency identification access control method based on secret separation facial recognition according to claim 4 of the patent application scope further includes the following steps: using the processing component to decompose a registered facial image into a lower frequency by using the processing component; Registering the high frequency face information with one of the registered low frequency face information and the higher frequency component; using the processing component to encode the registered high frequency face information by the encoding technique to generate the registered high frequency face coded information, wherein the registered high frequency face information The face code information corresponds to the registered low frequency face information; the registered low frequency face information is stored in the RFID tag; and the registered high frequency face code information is stored in the database. The radio frequency identification access control method based on the secret separation facial recognition method described in claim 4, wherein the registered high frequency face coding information and the to-be-identified high frequency face coding information system are each a region dualization The pattern feature histogram spectrum or each is a region ternary pattern feature histogram spectrum. The radio frequency identification access control method based on the secret separation facial recognition method according to claim 4, wherein in the step of comparing whether the low frequency face information to be recognized meets the registered low frequency face information, a nearest neighbor is used. The algorithm calculates a scale space distance between the low frequency face information to be recognized and the registered low frequency face information, and determines whether the scale space distance is less than a low frequency stage threshold value, and if yes, It is determined that the low frequency face information to be recognized meets the registered low frequency face information. The method of combining the secret recognition facial recognition based radio frequency identification access method according to the fourth aspect of the patent application, wherein the step of comparing the high frequency face coded information to be recognized with the registered high frequency face coding information is taken out. Using a nearest neighbor algorithm to calculate a distance value between the to-be-identified high-frequency face coded information and the registered high-frequency face coded information, and determine whether the distance value is less than a high-frequency threshold value, if "yes" And determining that the high frequency face coded information to be identified conforms to the registered high frequency face coded information that is taken out. An RFID tag for combining an RFID-based access control system based on secret separation facial recognition includes at least one tag component, and communicates with an access control device by using a radio frequency identification technology, so that the access control device verifies the Whether the RFID tag is legal; and a storage component electrically connected to the tag component and storing at least one registered low frequency face information, wherein the registered low frequency face information is formed by performing a wavelet transform on a registered face image, and the The registered low frequency face information is different from one of the registered high frequency face information stored in a database. When the access control device verifies that the RFID tag is legal, the storage component transmits the stored low frequency face information to the access control identification. And a device for causing the access control device to compare whether the registered low frequency face information obtained from the storage component matches the low frequency face information to be recognized by one of the identifiers to be identified.