Detection device and detection method

Abstract

The invention relates to a detection device and a detection method, and the device comprises a multiband light source module which is used for emitting light of a target band according to a light source control instruction to irradiate a target iris; the quantum dot spectrum sensing module is used for collecting an iris image and an iris spectrum image corresponding to a target iris, the quantum dot spectrum sensing module comprises a quantum dot spectrum sensor, the quantum dot spectrum sensor comprises a quantum dot light filter and a light sensing element, the quantum dot light filter is located on the receiving side of the light sensing element, and the light sensing element is located on the receiving side of the light sensing element; the iris spectral image comprises spectral information of different wavebands corresponding to each part in the target iris; and the data processing module is used for determining iris feature information corresponding to the target iris according to the iris image and the iris spectrum image. According to the embodiment of the invention, the detection device can improve the collection efficiency and image quality of the iris image and the iris spectrum image, improves the accuracy and reliability of the iris feature information corresponding to the subsequently obtained target iris, and reduces the cost of the device.

Description

Technical Field

[0001] The present disclosure relates to the technical field of iris recognition, and in particular to a detection device and a detection method. Background Art

[0002] The commonly used iris recognition technology in the prior art mainly uses a grating spectral imaging module to collect the iris spectral image corresponding to the target iris, and then extracts the iris feature information based on the iris spectral image. However, the grating spectral imaging module has problems such as large size, insufficient light flux, slow imaging speed, low precision, and narrow spectral range, which leads to low quality of iris spectral images and affects the accuracy and reliability of the extracted iris feature information. Summary of the invention

[0003] In view of this, the present disclosure proposes a technical solution of a detection device and a detection method.

[0004] According to one aspect of the present disclosure, there is provided a detection device for iris detection, comprising: a multi-band light source module, a quantum dot spectrum sensing module and a data processing module;

[0005] The multi-band light source module is used to emit light of a target band to illuminate the target iris according to the light source control instruction;

[0006] The quantum dot spectrum sensing module is used to collect the iris image and iris spectrum image corresponding to the target iris, wherein the quantum dot spectrum sensing module includes: a quantum dot spectrum sensor, the quantum dot spectrum sensor includes: a quantum dot filter and a photosensitive element, the quantum dot filter is located on the receiving side of the photosensitive element, and the iris spectrum image includes: spectral information of different bands corresponding to each part of the target iris;

[0007] The data processing module is used to determine the iris feature information corresponding to the target iris according to the iris image and the iris spectrum image.

[0008] In a possible implementation, the multi-band light source module includes a plurality of LED lamp beads of different bands.

[0009] In a possible implementation, the quantum dot spectral sensing module further includes: a motor and a moving track; the motor is used to control the quantum dot spectral sensor to move along the moving track; the quantum dot spectral sensor is used to scan the target iris point by point during the movement along the moving track to collect the iris image and the iris spectral image.

[0010] In a possible implementation, the quantum dot spectral sensor is specifically used to: scan the target iris point by point during movement along the moving track to determine multiple spectral data and multiple sub-iris images corresponding to the target iris; and splice the multiple spectral data and the multiple sub-iris images to determine the iris image and the iris spectral image.

[0011] In a possible implementation, the quantum dot spectral sensing module also includes: an imaging shutter and an optical lens, wherein the imaging shutter is arranged between the optical lens and the quantum dot spectral sensor; the quantum dot spectral sensor is used to use the imaging shutter and the optical lens to perform optical imaging of the target iris to determine the iris image and the iris spectral image.

[0012] In a possible implementation, the iris feature information includes: spectral feature information corresponding to the target iris; the data processing module is used to: preprocess the iris spectral image to determine the preprocessed iris spectral image; perform spectral analysis on the preprocessed iris spectral image to determine the spectral feature information corresponding to the target iris.

[0013] In a possible implementation, the iris feature information includes: structural feature information corresponding to the target iris; the data processing module is used to: preprocess the iris image to determine the preprocessed iris image; perform feature extraction on the preprocessed iris image to determine the structural feature information corresponding to the target iris.

[0014] In a possible implementation, the data processing module is used to: respectively compare the spectral feature information and the structural feature information with pre-stored sample data to determine a feature comparison result, wherein the sample data includes: sample spectral feature information and sample structural feature information corresponding to multiple sample irises, and the feature comparison result is used to indicate the degree of similarity between the target iris and each sample iris.

[0015] In a possible implementation, the device also includes a data transmission module, a remote processing module, and / or a user interaction module; the data transmission module is used to transmit the iris feature information to the remote processing module; the remote processing module is used to store the iris feature information, process the iris feature information, and determine the data processing result corresponding to the iris feature information; the user interaction module is used to determine the interaction result corresponding to the interaction operation based on the interaction operation on the iris feature information.

[0016] According to another aspect of the present disclosure, there is provided a detection method based on the detection device described in any one of the above items, which is used for iris detection, comprising emitting light of a target band to illuminate a target iris; acquiring an iris image and an iris spectral image corresponding to the target iris, wherein the iris spectral image comprises: spectral information of different bands corresponding to each part of the target iris; and determining iris feature information corresponding to the target iris based on the iris image and the iris spectral image.

[0017] The detection device of the disclosed embodiment includes a multi-band light source module, a quantum dot spectral sensing module and a data processing module. The multi-band light source module can emit light of a target band to illuminate the target iris according to the light source control instruction, and can flexibly provide light of multiple different bands, thereby increasing the scope of application of the device. The quantum dot spectral sensing module, which is composed of a quantum dot spectral sensor including a quantum dot filter and a photosensitive element, can be used to collect an iris image corresponding to the target iris, and an iris spectral image including spectral information of different bands corresponding to each part of the target iris, which can improve the collection efficiency and image quality of the iris image and the iris spectral image, thereby improving the accuracy and reliability of the iris feature information corresponding to the target iris obtained subsequently, and reducing the cost of the device. Through the data processing module, the iris feature information corresponding to the target iris can be determined based on the iris image and the iris spectral image.

[0018] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

[0020] Figure 1 A block diagram of a detection device according to an embodiment of the present disclosure is shown;

[0021] Figure 2 A schematic structural diagram of a detection device according to an embodiment of the present disclosure is shown;

[0022] Figure 3 A flow chart of a detection method according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0023] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0024] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0025] The term "and / or" herein is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set consisting of A, B, and C.

[0026] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present disclosure.

[0027] By performing spectral scanning on the iris, the complex organizational structure of the iris can be identified, such as the corresponding lines, ridges, jagged textures, rings, spots, pupil shape and size and other characteristic information of the iris, and the spectral information such as the reflection and absorption spectra of different parts of the iris can also be identified. This information can be widely used in many different technical fields such as biometrics, health testing, drug and toxicology testing, and telemedicine.

[0028] The commonly used iris recognition technology in the prior art mainly uses a grating spectral imaging module to collect the iris spectral image corresponding to the target iris, and then extracts the iris feature information based on the iris spectral image. However, the grating spectral imaging module has problems such as large size, insufficient light flux, slow imaging speed, low precision, and narrow spectral range, which leads to low quality of iris spectral images and affects the accuracy and reliability of the extracted iris feature information.

[0029] In view of this, the present disclosure provides a detection device for iris detection, which can utilize a quantum dot spectral sensing module with high sensitivity and capable of covering a large spectral range to improve the acquisition efficiency and image quality of iris spectral images, thereby improving the accuracy and reliability of iris feature information. The detection device of the present disclosure is described in detail below.

[0030] Figure 1 FIG. 2 is a block diagram of a detection device according to an embodiment of the present disclosure. Figure 1 As shown, the device 100 includes: a multi-band light source module 101, a quantum dot spectrum sensing module 102 and a data processing module 103.

[0031] The multi-band light source module 101 is used to emit light of a target band to illuminate the target iris according to the light source control instruction.

[0032] The light source control instruction here can be used to instruct the multi-band light source module 101 to activate the light source of the target band, and provide the quantum dot spectrum sensing module 102 with light that meets its spectral range requirements. The specific source of the light source control instruction can be flexibly set according to actual use requirements, for example, it can come from a preset program in the device 100, or it can come from the real-time input of the user, and the present disclosure does not make specific restrictions on this; the specific form and content of the light source control instruction can be flexibly set according to actual use requirements, and the present disclosure does not make specific restrictions on this.

[0033] The specific form of the light in the target band can be flexibly set according to actual usage requirements, and can provide light in multiple different wavelength ranges at the same time. For example, it can include near-infrared light (wavelength range is 780nm~2526nm), visible light (wavelength range is 380nm~780nm), etc. The present disclosure does not make specific limitations on this.

[0034] The specific form of the multi-band light source module 101 can be flexibly set according to actual usage requirements, and the present disclosure does not make any specific limitations on this.

[0035] In a possible implementation, the multi-band light source module 101 includes a plurality of LED lamp beads with different wavelength bands.

[0036] The multi-band light source module 101 can emit light of the target band by activating the LED lamp beads of the target band. The specific form and quantity of the LED lamp beads of any band can be flexibly set according to actual use requirements, and the present disclosure does not make specific restrictions on this.

[0037] The quantum dot spectral sensing module 102 is used to collect an iris image and an iris spectral image corresponding to the target iris, wherein the quantum dot spectral sensing module 102 includes: a quantum dot spectral sensor, the quantum dot spectral sensor includes: a quantum dot filter and a photosensitive element, the quantum dot filter is located on the receiving side of the photosensitive element, and the iris spectral image includes: spectral information of different bands corresponding to each part of the target iris.

[0038] The quantum dot spectral sensing module 102 here may include a quantum dot spectral sensor composed of a quantum dot filter and a photosensitive element, which can realize the acquisition of an iris image corresponding to the target iris, and an iris spectral image including spectral information of multiple different bands. The specific forms of the quantum dot filter and the photosensitive element can refer to the implementation methods in the relevant technology, and the present disclosure does not specifically limit this.

[0039] The iris image corresponding to the target iris can be used to extract the structural features corresponding to the target iris, for example, it can include the structural features such as lines, ridges, jagged textures, rings, spots, pupil shape and size corresponding to the target iris. The specific form of the iris image can be flexibly set according to actual usage requirements, for example, it can be a grayscale image, a color image, etc., and the present disclosure does not make specific limitations on this.

[0040] The iris spectral image corresponding to the target iris includes spectral information of different bands corresponding to each part of the target iris, which can be used to reflect the spectral characteristics corresponding to the target iris. For example, it can include reflection spectra and / or absorption spectra corresponding to different parts of the target iris. The specific form of the iris spectral image can be flexibly set according to actual usage requirements, and the present disclosure does not make specific restrictions on this. Among them, the reflection spectrum can also include a scattered spectrum.

[0041] Compared with the grating-type spectral imaging module commonly used in the prior art, the quantum dot spectral sensing module 102 has a higher sensitivity and can collect iris images with a higher resolution; moreover, the quantum dot spectral sensing module 102 can cover a wider spectral range, and can simultaneously image the target iris based on light of multiple different bands, and obtain an iris spectral image including spectral information of multiple different bands, thereby improving the acquisition efficiency and image quality of the iris image and the iris spectral image, and further improving the accuracy and reliability of the iris feature information corresponding to the target iris obtained subsequently. In addition, compared with the spectral sensors commonly used in the prior art, the quantum dot spectral sensor is smaller in size and has a higher degree of integration, which can reduce the volume of the quantum dot spectral sensing module 102, thereby reducing the overall volume of the device 100, and improving the portability and application range of the device 100, so that the device 100 can be suitable for application scenarios with mobile requirements such as being carried by users.

[0042] On the other hand, the quantum dot spectral sensor module 102 has a lower manufacturing cost, and because the quantum dot spectral sensor module 102 has a higher luminous flux, the multi-band light source module 101 can use a smaller and lower-cost light source, thereby reducing the overall cost of the device 100.

[0043] The specific structure and function of the quantum dot spectral sensor module 102 will be described in detail later in conjunction with possible implementations of the present disclosure, and will not be elaborated here.

[0044] The data processing module 103 is used to determine iris feature information corresponding to the target iris according to the iris image and the iris spectrum image.

[0045] The data processing module 103 can receive the iris image and the iris spectrum image from the quantum dot spectrum sensing module 102, and perform image processing on the iris image and the iris spectrum image to determine the iris feature information corresponding to the target iris. The specific form and content of the iris feature information can be flexibly set according to actual usage requirements, for example, it can include structural feature information and spectral feature information corresponding to the target iris.

[0046] The specific form of the data processing module 103 can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations on this. The specific manner in which the data processing module 103 processes the iris image and the iris spectrum image can refer to the implementation methods in the relevant technology, for example, it can include feature extraction using a neural network model, etc., and the present disclosure does not make specific limitations on this.

[0047] The specific structure and function of the quantum dot spectral sensor module 102 will be described in detail later in conjunction with possible implementations of the present disclosure, and will not be elaborated here.

[0048] The detection device of the disclosed embodiment includes a multi-band light source module, a quantum dot spectral sensing module and a data processing module. The multi-band light source module can emit light of a target band to illuminate the target iris according to the light source control instruction, and can flexibly provide light of multiple different bands, thereby increasing the scope of application of the device. The quantum dot spectral sensing module, which is composed of a quantum dot spectral sensor including a quantum dot filter and a photosensitive element, can be used to collect an iris image corresponding to the target iris, and an iris spectral image including spectral information of different bands corresponding to each part of the target iris, which can improve the collection efficiency and image quality of the iris image and the iris spectral image, thereby improving the accuracy and reliability of the iris feature information corresponding to the target iris obtained subsequently, and reducing the cost of the device. Through the data processing module, the iris feature information corresponding to the target iris can be determined based on the iris image and the iris spectral image.

[0049] In different application scenarios, the focus on iris feature information and the requirements for image accuracy of iris images and iris spectral images are different. For example, in application scenarios such as biometrics, drug and toxicology testing, the emphasis is on using the structural feature information corresponding to the iris; while in application scenarios such as health testing and telemedicine, it is necessary to monitor different health indicators based on iris spectral images in multiple different bands.

[0050] Therefore, in order to improve the flexibility and versatility of the device 100, the quantum dot spectral sensing module 102 provided in the present disclosure has two imaging modes, namely push-scan imaging and snapshot imaging. Specifically, push-scan imaging can mean that the quantum dot spectral sensing module 102 performs point-by-point imaging of the target iris according to a preset path to determine the iris image and iris spectral image corresponding to the target iris. The specific method of implementing push-scan imaging can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations on this.

[0051] In a possible implementation, the quantum dot spectral sensing module 102 also includes: a motor and a moving track; the motor is used to control the quantum dot spectral sensor to move along the moving track; the quantum dot spectral sensor is used to scan the target iris point by point during the movement along the moving track to determine the iris image and the iris spectral image.

[0052] Figure 2 FIG. 2 is a schematic diagram showing a structure of a detection device according to an embodiment of the present disclosure. Figure 2 As shown, the quantum dot spectrum sensing module 102 includes: a quantum dot spectrum sensor 1021, a motor 1022 and a moving track 1023, wherein the quantum dot spectrum sensor 1021 is arranged on the motor 1022, and the motor 1022 is arranged on the moving track 1023. The specific connection mode between the quantum dot spectrum sensor 102 and the motor 1022, and the specific connection mode between the motor 1022 and the moving track 1023 can be flexibly set according to actual use requirements, and the present disclosure does not make specific limitations on this.

[0053] The specific form of the motor 1022 can refer to the implementation in the related art, and the present disclosure does not make any specific limitation on this. The specific form of the moving track 1023 can be flexibly set according to actual use requirements, and the present disclosure does not make any specific limitation on this.

[0054] The motor 1022 can be used to control the quantum dot spectrum sensor 1021 to move along the moving track 1023. Specifically, the position of the moving track 1023 is fixed, and the motor 1022 can drive the quantum dot spectrum sensor 1021 to slide on the moving track 1023 according to the control instruction, so as to scan the target iris point by point according to the path corresponding to the moving track 1023, realize push-scan imaging of the target iris, and determine the iris image and iris spectrum image corresponding to the target iris. The specific way in which the quantum dot spectrum sensor 1021 determines the iris image and the iris spectrum image can refer to the implementation in the relevant technology, and the present disclosure does not make specific limitations on this.

[0055] In addition to the above-mentioned methods, one may also refer to the implementation methods in the related art to adjust the positional relationship and connection method between the quantum dot spectrum sensor 1021, the motor 1022 and the movable track 1023, or add other structures, so as to realize push-scan imaging in other ways. For example, the quantum dot spectrum sensor 1021 may be set on the movable track 1023, the position of the motor 1022 may be kept fixed, and the movable track 1023 may be driven to rotate by the motor 1022, so that the quantum dot spectrum sensor 1021 moves with the movable track 1023, etc. The present disclosure does not make any specific limitations on this.

[0056] In a possible implementation, the quantum dot spectral sensor 1021 is specifically used to: scan the target iris point by point during movement along the moving track to determine multiple spectral data and multiple sub-iris images corresponding to the target iris; and splice the multiple spectral data and multiple sub-iris images to determine the iris image and the iris spectral image.

[0057] During the movement along the moving track, the quantum dot spectral sensor 1021 can scan the target iris point by point to determine multiple spectral data and multiple sub-iris images corresponding to the target iris; the specific form and content of the spectral data can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations on this; any sub-iris image can include an image of at least one area and / or part of the target iris, and its specific form and content can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations on this.

[0058] By splicing multiple spectral data, the quantum dot spectral sensor 1021 can determine the iris image and the iris spectral image. The specific way in which the quantum dot spectral sensor 1021 splices data can refer to the implementation in the related art, and the present disclosure does not make any specific limitation on this.

[0059] Snapshot imaging may mean that the quantum dot spectrum sensing module 102 quickly captures the iris image and iris spectrum image corresponding to the target iris through the imaging shutter. The specific method of implementing snapshot imaging can be flexibly set according to actual usage requirements, and this disclosure does not make specific limitations on this.

[0060] In one possible implementation, the quantum dot spectral sensing module 102 also includes: an imaging shutter and an optical lens, wherein the imaging shutter is disposed between the optical lens and the quantum dot spectral sensor; and the quantum dot spectral sensor is used to perform optical imaging of the target iris using the imaging shutter and the optical lens to determine the iris image and the iris spectral image.

[0061] With the above Figure 2 For example, Figure 2As shown, the quantum dot spectrum sensing module 102 further includes: an imaging shutter 1024 and an optical lens 1025, wherein the imaging shutter 1024 is disposed between the optical lens 1025 and the quantum dot spectrum sensor 1021. The specific forms of the imaging shutter 1024 and the optical lens 1025 may refer to the implementations in the related art, and the present disclosure does not make any specific limitations on this.

[0062] The quantum dot spectral sensor 1021 can control the imaging shutter 1024 and the optical lens 1025 based on a preset frequency to perform optical imaging on the target iris and determine the iris image and the iris spectral image.

[0063] Through the above structure, the quantum dot spectral sensing module 102 can flexibly switch between different imaging modes to collect iris images and iris spectral images according to actual usage requirements, thereby improving the versatility of the device 100 while ensuring its imaging speed in different application scenarios.

[0064] In a possible implementation, the iris feature information includes: spectral feature information corresponding to the target iris; the data processing module 103 is used to: preprocess the iris spectral image to determine the preprocessed iris spectral image; perform spectral analysis on the preprocessed iris spectral image to determine the spectral feature information corresponding to the target iris.

[0065] With the above Figure 2 For example, Figure 2 As shown, the data processing module 103 is signal-connected to the quantum dot spectrum sensor 1021. The signal connection here may indicate that the data processing module 103 is electrically connected to the quantum dot spectrum sensor 1021 and data transmission can be performed.

[0066] After receiving the iris spectrum image transmitted by the quantum dot spectrum sensor 1021, the data processing module 103 can pre-process the iris spectrum image to determine the pre-processed iris spectrum image. The specific method of pre-processing can be flexibly set according to actual usage requirements, for example, it can include filtering processing, normalization processing, etc. on the iris spectrum image, which is not specifically limited in the present disclosure.

[0067] By performing spectral analysis on the preprocessed iris spectral image, the data processing module 103 can determine the spectral feature information corresponding to the target iris. The specific form and content of the spectral feature information can be flexibly set according to actual usage requirements. For example, it can include the reflection and absorption spectra of different parts of the target iris, etc., which is not specifically limited in this disclosure. The specific method of spectral analysis can refer to the implementation method in the relevant technology, which is not specifically limited in this disclosure.

[0068] In a possible implementation, the iris feature information includes: structural feature information corresponding to the target iris; the data processing module 103 is used to: preprocess the iris image to determine the preprocessed iris image; perform feature extraction on the preprocessed iris image to determine the structural feature information corresponding to the target iris.

[0069] After receiving the iris image transmitted by the quantum dot spectrum sensor 1021, the data processing module 103 can pre-process the iris image to determine the pre-processed iris image. The specific method of pre-processing can be flexibly set according to actual usage requirements, for example, it can include filtering processing, normalization processing, etc. of the iris image, which is not specifically limited in the present disclosure.

[0070] By extracting features from the preprocessed iris image, the data processing module 103 can determine the structural feature information corresponding to the target iris; the specific form and content of the structural feature information can be flexibly set according to actual usage requirements, and can include features corresponding to image information such as lines, ridges, jagged textures, rings, spots, pupil shape and size corresponding to the target iris, for example, it can include the shape of the lines and the direction of the ridges, which is not specifically limited in this disclosure. The specific method of spectral analysis can refer to the implementation methods in the relevant technology, which is not specifically limited in this disclosure.

[0071] In one possible implementation, the data processing module 103 is used to respectively compare the spectral feature information and the structural feature information with pre-stored sample data to determine a feature comparison result, wherein the sample data includes: sample spectral feature information and sample structural feature information corresponding to multiple sample irises, and the feature comparison result is used to indicate the degree of similarity between the target iris and each sample iris.

[0072] The visibility and contrast of the iris's structural features, such as lines, spots, and jagged textures, may be different under different spectra. Therefore, the spectral feature information and structural feature information can be compared with the pre-stored sample data at the same time, and the correlation between the sample spectral feature information and the sample structural feature information corresponding to each sample iris can be used to obtain a feature comparison result that can comprehensively utilize the spectral feature information and the structural feature information, thereby improving the accuracy and reliability of iris recognition.

[0073] The sample data here can be pre-stored in the data processing module 103, or stored in a cloud platform corresponding to the device 100, such as a cloud server, etc., and can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations on this.

[0074] In one possible implementation, the device 100 also includes a data transmission module and a remote processing module; the data transmission module is used to transmit the iris feature information to the remote processing module; the remote processing module is used to store the iris feature information, process the iris feature information, and determine the data processing result corresponding to the iris feature information.

[0075] With the above Figure 2 For example, Figure 2 As shown, the device 100 also includes a data transmission module 201, and the data transmission module 201 is signal-connected to the data processing module 103, and can be used to transmit iris feature information to the remote processing module. The specific form of the data transmission module 201 and the specific method of data transmission can be flexibly set according to actual usage requirements, and the present disclosure does not make specific limitations on this.

[0076] The remote processing module can be used to store iris feature information, further process the iris feature information according to the user's usage requirements, and determine the data processing results corresponding to the iris feature information. The specific form of the remote processing module can be flexibly set according to actual usage requirements, and the present disclosure does not make specific restrictions on this. The specific method of processing iris feature information, as well as the specific form and content of the data processing results, can be flexibly set according to actual usage requirements. For example, it can include identity recognition results corresponding to the target iris, health status detection results, drug and toxicology detection results, etc., and the present disclosure does not make specific restrictions on this.

[0077] In a possible implementation, the device 100 further includes a user interaction module, which is used to determine an interaction result corresponding to the interaction operation according to the interaction operation on the iris feature information.

[0078] With the above Figure 2 For example, Figure 2 As shown, the device 100 also includes a user interaction module 202, which is used to determine the interaction result corresponding to the interaction operation according to the user's interaction operation on the iris feature information. Among them, the specific form of the user interaction module 202 can be flexibly set according to actual usage requirements, for example, it can include a display device with touch interaction and / or voice interaction, etc., which is not specifically limited in this disclosure. The specific form and content of the interaction operation and the interaction result can be flexibly set according to actual usage requirements, which is not specifically limited in this disclosure.

[0079] In one example, the device 100 is applied to an identity recognition scenario for security inspection. After the eyes of the user to be identified face the device 100 and perform an interactive operation for identity recognition, the device 100 can control the multi-band light source module 101 to emit light of the target band to illuminate the iris of the user to be identified, and enable the quantum dot spectrum sensing module 102 to collect the iris image and iris spectrum image corresponding to the iris of the user to be identified in a snapshot imaging or push-scan imaging manner. After completing the image acquisition, the data processing unit 103 can extract iris feature information based on the iris image and iris spectrum image, and transmit the iris feature information to the corresponding security inspection system for identity recognition, determine the identity recognition result, and transmit it to the user interaction module 202. The user interaction module 202 can determine the interaction result based on the identity recognition result. For example, the identity recognition result can be displayed on the user interaction module 202 and voice broadcast can be performed.

[0080] The detection device of the disclosed embodiment includes a multi-band light source module, a quantum dot spectrum sensing module and a data processing module. The multi-band light source module can emit light of a target band to illuminate the target iris according to the light source control instruction, and can flexibly provide light of multiple different bands, thereby increasing the scope of application of the device. The quantum dot spectrum sensing module, which is composed of a quantum dot spectrum sensor including a quantum dot filter and a photosensitive element, can flexibly switch between different imaging modes based on actual application scenarios, collect an iris image corresponding to the target iris, and an iris spectrum image including spectrum information of different bands corresponding to each part of the target iris, thereby improving the versatility of the device while improving the collection efficiency and image quality of the iris image and the iris spectrum image, thereby improving the accuracy and reliability of the iris feature information corresponding to the target iris obtained subsequently, and reducing the size and manufacturing cost of the device. Through the data processing module, the iris feature information corresponding to the target iris can be determined based on the iris image and the iris spectrum image.

[0081] It should be noted that although Figure 2 The structure of the detection device is introduced as an example, but those skilled in the art will understand that the present disclosure should not be limited thereto. In fact, the user can flexibly set the specific structure of the detection device according to personal preferences and / or actual application scenarios, as long as it can be based on the above process, it can use a quantum dot spectral sensing module with high sensitivity and capable of covering a large spectral range to improve the acquisition efficiency and image quality of the iris spectral image, thereby improving the accuracy and reliability of the iris feature information.

[0082] On the other hand, the present invention further provides a detection method based on any one of the detection devices described above, which is used for iris detection.

[0083] Figure 3FIG. 1 is a flow chart of a detection method according to an embodiment of the present disclosure. Figure 3 As shown, the detection method includes:

[0084] In step S301, light of a target wavelength band is emitted to illuminate a target iris;

[0085] In step S302, an iris image and an iris spectrum image corresponding to the target iris are obtained, wherein the iris spectrum image includes: spectrum information of different bands corresponding to each part of the target iris;

[0086] In step S303, iris feature information corresponding to the target iris is determined according to the iris image and the iris spectrum image.

[0087] The above method can be used to collect an iris image corresponding to the target iris, and an iris spectrum image including spectrum information of different bands corresponding to each part of the target iris, which can improve the collection efficiency and image quality of the iris image and the iris spectrum image, thereby improving the accuracy and reliability of the iris feature information corresponding to the target iris obtained subsequently, and reducing the cost of the device. Through the data processing module, the iris feature information corresponding to the target iris can be determined according to the iris image and the iris spectrum image.

[0088] The iris image includes structural feature information; the specific form and content of the structural feature information can be flexibly set according to actual usage requirements, and may include features corresponding to image information such as lines, ridges, jagged textures, rings, spots, pupil shape and size corresponding to the target iris, and may include the shape of the lines and the direction of the ridges.

[0089] The visibility and contrast of the iris's structural features, such as lines, spots, and jagged textures, may be different under different spectra. Therefore, the spectral feature information and structural feature information can be compared with the pre-stored sample data at the same time, and the correlation between the sample spectral feature information and the sample structural feature information corresponding to each sample iris can be used to obtain a feature comparison result that can comprehensively utilize the spectral feature information and the structural feature information, thereby improving the accuracy and reliability of iris recognition. The sample data here refers to the pre-stored information.

[0090] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A detection device for iris detection, characterized in that: include: Multi-band light source module, quantum dot spectrum sensing module and data processing module; The multi-band light source module is used to emit light of a target band to illuminate the target iris according to the light source control instruction; The quantum dot spectrum sensing module is used to collect the iris image and iris spectrum image corresponding to the target iris, wherein the quantum dot spectrum sensing module includes: a quantum dot spectrum sensor, the quantum dot spectrum sensor includes: a quantum dot filter and a photosensitive element, the quantum dot filter is located on the receiving side of the photosensitive element, and the iris spectrum image includes: spectral information of different bands corresponding to each part of the target iris; The data processing module is used to determine the iris feature information corresponding to the target iris according to the iris image and the iris spectrum image.

2. The device according to claim 1, characterized in that The multi-band light source module includes a plurality of LED lamp beads of different bands.

3. The device according to claim 1 or 2, characterized in that: The quantum dot spectrum sensing module also includes: a motor and a moving track; The motor is used to control the quantum dot spectrum sensor to move along the moving track; The quantum dot spectrum sensor is used to scan the target iris point by point and collect the iris image and the iris spectrum image during the movement along the moving track.

4. The device according to claim 3, characterized in that The quantum dot spectrum sensor is specifically used for: During the movement along the moving track, the target iris is scanned point by point to determine a plurality of spectral data and a plurality of sub-iris images corresponding to the target iris; The multiple spectral data and the multiple sub-iris images are spliced ​​to determine the iris image and the iris spectral image.

5. The device according to claim 3, characterized in that The quantum dot spectrum sensing module further includes: an imaging shutter and an optical lens, wherein the imaging shutter is arranged between the optical lens and the quantum dot spectrum sensor; The quantum dot spectrum sensor is used to perform optical imaging on the target iris using the imaging shutter and the optical lens to determine the iris image and the iris spectrum image.

6. The device according to claim 1 or 2, characterized in that: The iris feature information includes: spectral feature information corresponding to the target iris; The data processing module is used for: Preprocessing the iris spectral image to determine a preprocessed iris spectral image; Perform spectral analysis on the preprocessed iris spectral image to determine spectral feature information corresponding to the target iris.

7. The device according to claim 6, characterized in that The iris feature information includes: structural feature information corresponding to the target iris; The data processing module is used for: Preprocessing the iris image to determine a preprocessed iris image; Feature extraction is performed on the preprocessed iris image to determine structural feature information corresponding to the target iris.

8. The device according to claim 7, characterized in that The data processing module is used for: The spectral feature information and the structural feature information are respectively compared with pre-stored sample data to determine a feature comparison result, wherein the sample data includes: sample spectral feature information and sample structural feature information corresponding to multiple sample irises, and the feature comparison result is used to indicate the degree of similarity between the target iris and each sample iris.

9. The device according to claim 1 or 2, characterized in that: The device also includes a data transmission module, a remote processing module, and / or a user interaction module; The data transmission module is used to transmit the iris feature information to the remote processing module; The remote processing module is used to store the iris feature information, process the iris feature information, and determine the data processing result corresponding to the iris feature information; The user interaction module is used to determine the interaction result corresponding to the interaction operation according to the interaction operation on the iris feature information.

10. A detection method based on the detection device according to any one of claims 1 to 9, used for iris detection, characterized in that: include: The light of the outgoing target band illuminates the target iris; Acquire an iris image and an iris spectrum image corresponding to the target iris, wherein the iris spectrum image includes: spectrum information of different bands corresponding to each part of the target iris; Iris feature information corresponding to the target iris is determined according to the iris image and the iris spectrum image.

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