Palm print, palm vein image acquisition device, method, apparatus and electronic device

Abstract

The application provides a palm print and palm vein image acquisition device, method, apparatus and electronic device. The acquisition device comprises a short-focus lens, a long-focus lens, a first half-transmission half-reflection mirror, a first reflection mirror, a second half-transmission half-reflection mirror, a second reflection mirror, a visible light photosensitive element and a near-infrared light photosensitive element. When the short-focus lens is turned on, visible light is transmitted from the short-focus lens and the first half-transmission half-reflection mirror in sequence and propagates to the visible light photosensitive element, and near-infrared light is transmitted from the short-focus lens and is reflected by the first half-transmission half-reflection mirror and the second reflection mirror in sequence and propagates to the near-infrared light photosensitive element; when the long-focus lens is turned on, near-infrared light is transmitted from the long-focus lens and the second half-transmission half-reflection mirror in sequence and propagates to the near-infrared light photosensitive element, and visible light is transmitted from the long-focus lens and is reflected by the second half-transmission half-reflection mirror and the first reflection mirror in sequence and propagates to the visible light photosensitive element. By using one short-focus lens and one long-focus lens, the acquisition distance is greatly expanded.

Description

Technical Field

[0001] This application relates to the field of biometric technology, and in particular to palm print and palm vein image acquisition devices, methods, apparatuses, and electronic devices. Background Technology

[0002] Currently, the most mature and promising biometric identification technologies on the market include fingerprint recognition, iris recognition, facial recognition, and palm print recognition. However, these technologies share some common drawbacks: they are greatly affected by the environment and, theoretically, can be copied and stolen. To enhance security, multi-model identification technologies that simultaneously recognize multiple biometric features have emerged on the market.

[0003] Palm vein recognition technology is increasingly widely used due to its uniqueness, stability, and unforgeability. However, because palm prints and palm veins belong to the same organism but have different biological characteristics, the lenses of related palm print and palm vein image acquisition devices are fixed-focus, cannot be adjusted, and have limited acquisition distance. Summary of the Invention

[0004] This application provides a device, method, apparatus, and electronic equipment for acquiring palm print and palm vein images over a wider range.

[0005] This application provides a palm print and palm vein image acquisition device, comprising: a short-focal-length lens, a long-focal-length lens, a first lens, a second lens, a visible light sensor, and a near-infrared light sensor. The first lens and the second lens are rotatable between a first position and a second position. The first lens includes a first semi-transparent mirror and a first reflector, and the second lens includes a second semi-transparent mirror and a second reflector.

[0006] When the short focal length lens is turned on, the first lens and the second lens are in the first position. Visible light illuminating the palm passes through the short focal length lens and the first semi-transparent mirror in sequence and is transmitted to the visible light photosensitive element. Near-infrared light illuminating the palm passes through the short focal length lens and is reflected by the first semi-transparent mirror and the second mirror in sequence and is transmitted to the near-infrared light photosensitive element.

[0007] When the telephoto lens is turned on, the first lens and the second lens are in the second position. Near-infrared light illuminating the palm passes through the telephoto lens and the second semi-transparent mirror in sequence and propagates to the near-infrared light sensor. Visible light illuminating the palm passes through the telephoto lens and is reflected by the second semi-transparent mirror and the first mirror in sequence and propagates to the visible light sensor.

[0008] Furthermore, the extension direction of the first lens in the first position is perpendicular to its extension direction in the second position; the extension direction of the second lens in the first position is perpendicular to its extension direction in the second position.

[0009] Furthermore, in both the first and second positions, the first lens is parallel to the second lens.

[0010] Furthermore, the acquisition device includes a power unit and a rotating shaft, the power unit drives the rotating shaft to rotate, and the rotating shaft drives the first lens and / or the second lens to rotate.

[0011] Furthermore, the acquisition device includes a first controller, and the power unit can rotate between a first stop position and a second stop position. The first controller controls the power unit to rotate between the first stop position and the second stop position. At the first stop position, the first lens and the second lens are in a first position, and at the second stop position, the first lens and the second lens are in a second position.

[0012] Furthermore, the first lens is located below the short-focal-length lens, the visible light sensor is located below the first lens, the second lens is located below the telephoto lens, and the near-infrared light sensor is located below the second lens.

[0013] Furthermore, the acquisition device includes a second controller, which controls the first lens to move up and down, and / or controls the second lens to move up and down.

[0014] Furthermore, the acquisition device includes a magnetic component, and the second controller controls the direction of the magnetic field generated by the magnetic component to control the up and down movement of the first lens and / or the second lens.

[0015] Furthermore, the first semi-transparent mirror is fixed together with the first reflector, and the second semi-transparent mirror is fixed together with the second reflector.

[0016] Furthermore, the acquisition device also includes a distance measuring device and a control device. When the distance measuring device detects that the palm is at a first height, the control device controls the short focal length lens to open. When the distance measuring device detects that the palm is at a second height, the control device controls the long focal length lens to open. The first height is less than the second height.

[0017] This application also provides a method for acquiring palm print and palm vein images, applied to a palm print and palm vein image acquisition device. The acquisition device includes a short-focal-length lens, a long-focal-length lens, a first lens, a second lens, a visible light sensor, and a near-infrared light sensor. The first lens includes a first semi-transparent mirror and a first reflector, and the second lens includes a second semi-transparent mirror and a second reflector. The method includes:

[0018] To determine the height of the palm;

[0019] If the height of the palm is within the recognition range of the short focal length lens, the short focal length lens is turned on. The visible light illuminating the palm passes through the short focal length lens and the first semi-transparent mirror in sequence and is transmitted to the visible light photosensitive element. The near-infrared light illuminating the palm passes through the short focal length lens and is reflected by the first semi-transparent mirror and the second mirror in sequence and is transmitted to the near-infrared light photosensitive element.

[0020] If the height of the palm is within the recognition range of the telephoto lens, the telephoto lens is turned on, and the near-infrared light illuminating the palm passes through the telephoto lens and the second semi-transparent mirror in sequence and is transmitted to the near-infrared light sensor. The visible light illuminating the palm passes through the telephoto lens and is reflected by the second semi-transparent mirror and the first mirror in sequence and is transmitted to the visible light sensor.

[0021] Furthermore, the acquisition device includes a first controller, and the method includes: the first controller controlling the first lens and the second lens to rotate between a first position and a second position; when the short focal length lens is turned on, the first lens and the second lens are in the first position; when the long focal length lens is turned on, the first lens and the second lens are in the second position.

[0022] Furthermore, the first controller controls the rotation of the first lens and the second lens, including: the first controller controls the power device to rotate between a first stop position and a second stop position, wherein at the first stop position, the first lens and the second lens are in a first position, and at the second stop position, the first lens and the second lens are in a second position.

[0023] Furthermore, the acquisition device includes a second controller, and the method includes: the second controller controlling the first lens and the second lens to move up and down.

[0024] This application also provides a palm print and palm vein image acquisition device. The acquisition device is applied to a palm print and palm vein image acquisition equipment. The acquisition equipment includes a short-focal-length lens, a long-focal-length lens, a first lens, a second lens, a visible light sensor, and a near-infrared light sensor. The first lens includes a first semi-transparent mirror and a first reflector, and the second lens includes a second semi-transparent mirror and a second reflector. The device includes:

[0025] The acquisition module is used to obtain the height of the hand.

[0026] The control module is configured to, when the height of the palm is within the recognition range of the short-focus lens, control the short-focus lens to open, so that visible light illuminating the palm passes sequentially through the short-focus lens and the first semi-transparent mirror and propagates to the visible light sensor; and near-infrared light illuminating the palm passes through the short-focus lens and is sequentially reflected by the first semi-transparent mirror and the second mirror and propagates to the near-infrared light sensor; and,

[0027] The telephoto lens is activated when the palm is at a height within its recognition range. Near-infrared light illuminating the palm passes through the telephoto lens and the second semi-transparent mirror sequentially and propagates to the near-infrared photosensitive element. Visible light illuminating the palm passes through the telephoto lens and is reflected sequentially by the second semi-transparent mirror and the first mirror and propagates to the visible light photosensitive element.

[0028] Furthermore, the device includes a first controller that controls the rotation of the first lens and the second lens between a first position and a second position. When the short-focus lens is activated, the first lens and the second lens are in the first position; when the telephoto lens is activated, the first lens and the second lens are in the second position; and / or,

[0029] The first controller controls the rotation of the first lens and the second lens, including: the first controller controls the power unit to rotate between a first stop position and a second stop position, wherein at the first stop position, the first lens and the second lens are in a first position, and at the second stop position, the first lens and the second lens are in a second position; and / or,

[0030] The device includes a second controller, which controls the up and down movement of the first lens and the second lens.

[0031] This application also provides an electronic device, the electronic device comprising:

[0032] Memory is used to store machine-executable instructions;

[0033] A processor is configured to read and execute machine-executable instructions stored in the memory to implement the method described above.

[0034] This application also provides a computer-readable storage medium, which includes a stored program, wherein the program, when running, controls the device where the computer-readable storage medium is located to execute the above-described method.

[0035] The palm print and palm vein image acquisition device and method of this application significantly extend the acquisition distance by setting up a short-focus lens and a long-focus lens; at the same time, the short-focus lens and the long-focus lens are used separately, eliminating the need for focusing, shortening the image acquisition time and improving the user experience; furthermore, the structure of the acquisition device is relatively simple and the cost is relatively low. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the optical path of the palm print and palm vein image acquisition device according to the embodiments of this application when the short focal length lens is turned on.

[0037] Figure 2 This is a schematic diagram of the optical path of the palm print and palm vein image acquisition device according to the embodiments of this application when the telephoto lens is turned on.

[0038] Figure 3 yes Figure 1 A schematic diagram of some components of the palm print and palm vein image acquisition device;

[0039] Figure 4 yes Figure 3 A schematic diagram of another embodiment of the schematic diagram shown;

[0040] Figure 5 This is a flowchart of the palm print and palm vein image acquisition method according to the embodiments of this application;

[0041] Figure 6 This is a block diagram of a message processing apparatus according to an embodiment of this application;

[0042] Figure 7 This is a schematic diagram of the structure of a computer device according to an embodiment of this application. Detailed Implementation

[0043] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0044] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper," etc., are for ease of description only and are not limited to a location or spatial orientation. The terms "comprising" or "including," etc., mean that the element or object preceding "comprising" or "including" covers the element or object listed following "comprising" or "including" and its equivalents, and do not exclude other elements or objects. The terms "connected," "linked," etc., are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0045] The user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and corresponding operation entry points are provided for users to choose to authorize or refuse.

[0046] See Figures 1 to 2 As shown, this application provides a palm print and palm vein image acquisition device, including a short-focal-length lens 1, a long-focal-length lens 2, a first lens 3, a second lens 4, a visible light sensor 5, and a near-infrared light sensor 6. The first lens 3 includes a first semi-transparent mirror 31 and a first reflector 32. The second lens 4 includes a second semi-transparent mirror 41 and a second reflector 42. The first lens 3 and the second lens 4 are rotatable between a first position and a second position.

[0047] The first semi-transparent mirror 31 transmits one of visible light and near-infrared light, and reflects the other of visible light and near-infrared light. The second semi-transparent mirror 41 transmits the same light as the first semi-transparent mirror 31, and the light reflected by the second semi-transparent mirror 41 is the same as the light transmitted by the first semi-transparent mirror 31. That is, if the first semi-transparent mirror 31 transmits visible light and reflects near-infrared light, then the second semi-transparent mirror 41 transmits near-infrared light and reflects visible light; if the first semi-transparent mirror 31 transmits near-infrared light and reflects visible light, then the second semi-transparent mirror 41 transmits visible light and reflects near-infrared light.

[0048] When the short focal length lens 1 is turned on, the first lens 3 and the second lens 4 are in the first position. Visible light illuminating the palm passes through the short focal length lens 1 and the first semi-transparent mirror 31 in sequence and propagates to the visible light photosensitive element 5. Near-infrared light illuminating the palm passes through the short focal length lens 1 and is reflected by the first semi-transparent mirror 31 and the second mirror 42 in sequence and propagates to the near-infrared light photosensitive element 6.

[0049] When the telephoto lens 2 is turned on, the first lens 3 and the second lens 4 are in the second position. Near-infrared light illuminating the palm passes through the telephoto lens 2 and the second semi-transparent mirror 41 in sequence and propagates to the near-infrared light sensor 6. Visible light illuminating the palm passes through the telephoto lens 2 and is reflected by the second semi-transparent mirror 41 and the first mirror 32 in sequence and propagates to the visible light sensor 5.

[0050] The palm print and palm vein image acquisition device of this application significantly extends the acquisition distance by setting a short focal length lens 1 and a long focal length lens 2; moreover, the short focal length lens 1 and the long focal length lens 2 are used separately, eliminating the need for focusing, shortening the image acquisition time and improving the user experience; furthermore, the acquisition device only needs to add a first lens 3 and a second lens 4 to the short focal length lens 1 and the long focal length lens 2, making the structure of the acquisition device relatively simple and the cost relatively low.

[0051] Near-infrared light has a wavelength greater than or equal to 850 nm and less than or equal to 940 nm.

[0052] Optionally, the visible light photosensitive element may be provided with a visible light filter, allowing only visible light to pass through. The near-infrared photosensitive element may be provided with a near-infrared light filter, allowing only near-infrared light to pass through. After passing through the near-infrared light filter or the visible light filter, the light illuminates the visible light photosensitive element 5 or the near-infrared light photosensitive element 6.

[0053] The acquisition device also includes a distance measuring device 71 and a control device 72. When the distance measuring device detects that the palm is at a first height, that is, within the recognition range of the short focal length lens 1, the control device 72 controls the short focal length lens 1 to turn on. When the distance measuring device 71 detects that the palm is at a second height, that is, within the recognition range of the long focal length lens 2, the control device 72 controls the long focal length lens 2 to turn on. The first height is less than the second height.

[0054] The first height is greater than or equal to 5 mm and less than or equal to 8 mm. The second height is greater than 8 mm and less than or equal to 35 mm.

[0055] The acquisition device also includes a circuit board 81 and a supplementary light 82 fixed to the circuit board 81. The visible light sensor 5 and the near-infrared light sensor 6 are fixed to the circuit board 81. The supplementary light 82 increases ambient brightness, enabling the short-focus lens 1 and / or the long-focus lens 2 to acquire palm features, i.e., palm print and palm vein images, with high fidelity. One or more supplementary lights 82 can be provided. This application does not limit the number or position of the supplementary lights 82, and adjustments can be made according to actual needs.

[0056] The acquisition device also includes an image acquisition card 83 and a computer (not shown). The image acquisition card 83 can be fixed to the circuit board 81. The visible light photosensitive element 5 and the near-infrared photosensitive element 6 are connected to the image acquisition card 83 to transmit signals. The image acquisition card 83 is connected to the computer to transmit signals.

[0057] The images acquired by the visible light sensor 5 and the near-infrared light sensor 6 are converted into digital image signals by the image acquisition card 83 and transmitted to the computer for aggregation. The two images are preprocessed using relevant image processing software, such as geometric correction and noise reduction. Then, image registration is performed, and the two images are fused using an image fusion algorithm based on wavelet transform. Finally, the fused image is segmented, feature points are extracted, and features including palm veins and palm prints fused together are extracted. The extracted features are compared with features stored in the database to make a judgment and obtain the final identity recognition and authentication result, thus realizing identity recognition.

[0058] The first lens 3 is located below the short focal length lens 1, the visible light sensor 5 is located below the first lens 3, the second lens 4 is located below the long focal length lens 2, and the near-infrared light sensor 6 is located below the second lens 4.

[0059] The extension direction of the first lens 3 in the first position is perpendicular to its extension direction in the second position; the extension direction of the second lens 4 in the first position is perpendicular to its extension direction in the second position.

[0060] In both the first and second positions, the first lens 3 is parallel to the second lens 4. Optionally, in both the first and second positions, the angle between the first lens 3 and the second lens 4 and the vertical direction is 45 degrees.

[0061] See Figure 3 As shown, the acquisition device includes a power unit 91 and a rotating shaft 92. The power unit 91 drives the rotating shaft 92 to rotate, and the rotating shaft 92 drives the first lens 3 and / or the second lens 4 to rotate.

[0062] For example, when the short focal length lens 1 is turned on, if the first lens 3 and the second lens 4 are in the first position, the power device 91 does not rotate; if the first lens 3 and the second lens 4 are in the second position, the power device 91 drives the first lens 3 and the second lens 4 to rotate to the first position.

[0063] For example, when the telephoto lens 2 is turned on, if the first lens 3 and the second lens 4 are in the second position, the power unit 91 does not rotate; if the first lens 3 and the second lens 4 are in the first position, the power unit 91 drives the first lens 3 and the second lens 4 to rotate to the second position.

[0064] The data acquisition device includes a first controller 93, and the power unit 91 is rotatable between a first stop position and a second stop position. The first controller 93 controls the power unit 91 to rotate between the first stop position and the second stop position. At the first stop position, the first lens 3 and the second lens 4 are in a first position; at the second stop position, the first lens 3 and the second lens 4 are in a second position.

[0065] For example, when the short focal length lens 1 is turned on, if the power unit 91 stops at the first stop position, the power unit 91 will not rotate; if, at this time, the power unit 91 stops at the second stop position, the power unit 91 will rotate to the first stop position.

[0066] For example, when the telephoto lens 2 is turned on, if the power unit 91 stops at the second stop position, the power unit 91 will not rotate; if, at this time, the power unit 91 stops at the first stop position, the power unit 91 will rotate to the second stop position.

[0067] Optionally, only one power unit 91 may be provided, which can drive the first lens 3 to rotate or drive the second lens 4 to rotate. Optionally, the power unit 91 may include a first power unit and a second power unit, whereby the first power unit drives the first lens 3 to rotate and the second power unit drives the second lens 4 to rotate.

[0068] Optionally, the first controller 93 may be configured as a single unit, capable of controlling both the first power unit and the second power unit. Optionally, the first controller 93 may be configured as a pair, controlling the first power unit and the second power unit respectively.

[0069] The first semi-transparent and semi-reflective mirror 31 is fixed together with the first reflector 32. The first semi-transparent and semi-reflective mirror 31 is located above the first reflector 32. The second semi-transparent and semi-reflective mirror 41 is fixed together with the second reflector 42. The second semi-transparent and semi-reflective mirror 41 is located above the second reflector 42.

[0070] The data acquisition device includes a connector 94. The first semi-transparent and semi-reflective mirror 31 and the first reflector 32 are respectively fixed to the connector 94 to secure the first semi-transparent and semi-reflective mirror 31 and the first reflector 32 together. Optionally, the first semi-transparent and semi-reflective mirror 31 and the first reflector 32 can also be fixed by means of adhesive or other methods. Optionally, the first semi-transparent and semi-reflective mirror 31 can also be set independently of the first reflector 32 without a fixed relationship.

[0071] The second semi-transparent and semi-reflective mirror 41 and the second reflector 42 can be fixed by means of fasteners (not shown) or by adhesive. Optionally, the second semi-transparent and semi-reflective mirror 41 can also be set independently of the second reflector 42 without being fixed together.

[0072] The acquisition device includes a second controller (not shown), which controls the first lens 3 and the second lens 4 to move up and down.

[0073] The acquisition device includes a magnetic component (not shown), and the second controller controls the direction of the magnetic field generated by the magnetic component to control the up and down movement of the first lens 3 and / or the second lens 4.

[0074] One or two second controllers can be configured. When there is only one second controller, it can control both the movement of the first lens 3 and the movement of the second lens 4. When there are two second controllers, one second controller controls the first lens 3, and the other second controller controls the second lens 4.

[0075] See Figure 3As shown, the acquisition device includes a pair of guide rails 95. The connector 94 can slide up and down relative to the guide rails 95, thereby adjusting the light illumination on the first semi-transparent mirror 31 and the first reflector 32.

[0076] Optionally, the first lens 3 and the second lens 4 are fixed together, and the connector 94 is located between the first lens 3 and the second lens 4. The first lens 3 and the second lens 4 can be fixed together by the connector 94. Both the connector 94 and the guide rail 95 are made of conductive material. In one embodiment, both the connector 94 and the guide rail 95 are made of metal. When the electrode of the guide rail 95 on the left side of the first lens 3 is negative after being energized, and the electrode of the guide rail 95 on the right side of the first lens 3 is positive after being energized, the generated magnetic field pushes the connector 94 upward. Conversely, when the electrode of the guide rail 95 on the left side of the first lens 3 is positive after being energized, and the electrode of the guide rail 95 on the right side of the first lens 3 is negative after being energized, the generated magnetic field pushes the connector 94 downward.

[0077] Optionally, the fixing member can also slide along another pair of guide rails to move the second lens 4 downward.

[0078] See Figure 4 As shown, in another embodiment, coils 96 are fixed to the upper and lower sides of the guide rail 95 and to the connector 94, respectively. By changing the current direction of the three coils 96, the magnetic field generated by the upper coil 96 facing the connector 94 can be made to have the N pole, and the magnetic field generated by the lower coil 96 facing the connector 94 can be made to have the S pole at the top and the N pole at the bottom. Under the influence of this magnetic field, the connector 94 moves upward. Similarly, changing the current direction of the three coils 96 can change the magnetic field, causing the connector 94 to move downward.

[0079] The data acquisition device may include a housing (not shown). The housing has a light-blocking effect to prevent light leakage. The short-focal-length lens 1, the long-focal-length lens 2, the first lens 3, the second lens 4, the circuit board 81, the power unit 91, and the guide rail 95 are located inside the housing and can be respectively limited to the side wall of the housing or to the fixing member located inside the housing. When acquiring palm features, the palm can be placed above the housing.

[0080] See Figure 5 As shown, this application also provides a palm print and palm vein image acquisition method, applied to the palm print and palm vein image acquisition device. The acquisition device includes a short focal length lens 1, a long focal length lens 2, a first lens 3, a second lens 4, a visible light sensor 5, and a near-infrared light sensor 6. The first lens 3 includes a first semi-transparent mirror 31 and a first reflector 32, and the second lens includes a second semi-transparent mirror 41 and a second reflector 42. The method includes:

[0081] To determine the height of the palm;

[0082] If the height of the palm is within the recognition range of the short focal length lens 1, the short focal length lens 1 is turned on. The visible light illuminating the palm passes through the short focal length lens 1 and the first semi-transparent mirror 31 in sequence and is transmitted to the visible light photosensitive element 5. The near-infrared light illuminating the palm passes through the short focal length lens 1 and is reflected by the first semi-transparent mirror 31 and the second mirror 42 in sequence and is transmitted to the near-infrared photosensitive element 6.

[0083] If the height of the palm is within the recognition range of the telephoto lens 2, the telephoto lens 2 is turned on, and the near-infrared light illuminating the palm passes through the telephoto lens 2 and the second semi-transparent mirror 41 in sequence and is transmitted to the near-infrared light sensor 6. The visible light illuminating the palm passes through the telephoto lens 2 and is reflected by the second semi-transparent mirror 41 and the first reflector 32 in sequence and is transmitted to the visible light sensor 5.

[0084] The acquisition device includes a distance measuring device 71, and the acquisition of the height of the palm includes: the distance measuring device 71 measuring the height of the palm.

[0085] The acquisition device includes a control device 72, which controls the telephoto lens 2 to turn on and the short focal length lens 1 to turn on, including: the control device 72 controls the telephoto lens 2 to turn on and the short focal length lens 1 to turn on.

[0086] The acquisition device includes a first controller 93, and the method includes: the first controller 93 controls the first lens 3 and the second lens 4 to rotate between a first position and a second position. When the short focal length lens 1 is turned on, the first lens 3 and the second lens 4 are in the first position, and when the long focal length lens 2 is turned on, the first lens 3 and the second lens 4 are in the second position.

[0087] The first controller 93 controls the rotation of the first lens 3 and the second lens 4, including: the first controller 93 controls the power device 91 to rotate between a first stop position and a second stop position. In the first stop position, the first lens 3 and the second lens 4 are in a first position, and in the second stop position, the first lens 3 and the second lens 4 are in a second position.

[0088] The acquisition device includes a second controller, and the method includes: the second controller controlling the first lens 3 and the second lens 4 to move up and down.

[0089] The second controller controls the first lens 3 and the second lens 4 to move up and down, including: the second controller controls the direction of the magnetic field to control the first lens 3 and the second lens 4 to move up and down.

[0090] See Figure 6 As shown, in addition to the aforementioned palm print and palm vein image acquisition method, this application also provides a palm print and palm vein image acquisition device. The acquisition device is applied to a palm print and palm vein image acquisition equipment, which includes a short focal length lens 1, a long focal length lens 2, a first lens 3, a second lens 4, a visible light sensor 5, and a near-infrared light sensor 6. The first lens 3 includes a first semi-transparent mirror 31 and a first reflector 32, and the second lens 4 includes a second semi-transparent mirror 41 and a second reflector 42. The device includes:

[0091] The acquisition module is used to obtain the height of the hand.

[0092] The control module is configured to, when the height of the palm is within the recognition range of the short-focus lens 1, control the short-focus lens 1 to turn on, so that visible light illuminating the palm passes sequentially through the short-focus lens 1 and the first semi-transparent mirror 31 and propagates to the visible light photosensitive element 5, and near-infrared light illuminating the palm passes through the short-focus lens and is sequentially reflected by the first semi-transparent mirror 31 and the second reflector 42 and propagates to the near-infrared photosensitive element 6; and,

[0093] The telephoto lens 2 is activated when the palm is at a height within its recognition range. Near-infrared light illuminating the palm passes through the telephoto lens 2 and the second semi-transparent mirror 41 sequentially and propagates to the near-infrared photosensitive element 6. Visible light illuminating the palm passes through the telephoto lens 2 and is reflected by the second semi-transparent mirror 41 and the first reflector 32 sequentially and propagates to the visible light photosensitive element 5.

[0094] Regarding the aforementioned palmprint and palm vein image acquisition methods, this application also provides an electronic device, comprising: a memory for storing machine-executable instructions; and a processor for reading and executing the machine-executable instructions stored in the memory to implement the aforementioned palmprint and palm vein image acquisition methods. This method includes at least:

[0095] To determine the height of the palm;

[0096] If the height of the palm is within the recognition range of the short focal length lens 1, the short focal length lens 1 is turned on. The visible light illuminating the palm passes through the short focal length lens 1 and the first semi-transparent mirror 31 in sequence and is transmitted to the visible light photosensitive element 5. The near-infrared light illuminating the palm passes through the short focal length lens 1 and is reflected by the first semi-transparent mirror 31 and the second mirror 42 in sequence and is transmitted to the near-infrared photosensitive element 6.

[0097] If the height of the palm is within the recognition range of the telephoto lens 2, the telephoto lens 2 is turned on, and the near-infrared light illuminating the palm passes through the telephoto lens 2 and the second semi-transparent mirror 41 in sequence and is transmitted to the near-infrared light sensor 6. The visible light illuminating the palm passes through the telephoto lens 2 and is reflected by the second semi-transparent mirror 41 and the first reflector 32 in sequence and is transmitted to the visible light sensor 5.

[0098] Figure 7 This diagram illustrates a more specific hardware structure of a computing device provided in the embodiments of this specification. The device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0099] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0100] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0101] The input / output interface 1030 is used to connect input / output modules to realize information input and output. Input / output modules can be configured as components within the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Input devices may include keyboards, mice, touchscreens, microphones, various sensors, etc., while output devices may include displays, speakers, vibrators, indicator lights, etc.

[0102] The communication interface 1040 is used to connect a communication module (not shown in the figure) to enable communication between this device and other devices. The communication module can communicate via wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0103] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0104] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments described in this specification, and need not include all the components shown in the figures.

[0105] Regarding the aforementioned palmprint and palm vein image acquisition methods, this application also provides a computer-readable storage medium, which includes a stored program, wherein, when the program is executed, it controls the device where the computer-readable storage medium is located to execute the aforementioned palmprint and palm vein image acquisition method. The method includes at least:

[0106] To determine the height of the palm;

[0107] If the height of the palm is within the recognition range of the short focal length lens 1, the short focal length lens 1 is turned on. The visible light illuminating the palm passes through the short focal length lens 1 and the first semi-transparent mirror 31 in sequence and is transmitted to the visible light photosensitive element 5. The near-infrared light illuminating the palm passes through the short focal length lens 1 and is reflected by the first semi-transparent mirror 31 and the second mirror 42 in sequence and is transmitted to the near-infrared photosensitive element 6.

[0108] If the height of the palm is within the recognition range of the telephoto lens 2, the telephoto lens 2 is turned on, and the near-infrared light illuminating the palm passes through the telephoto lens 2 and the second semi-transparent mirror 41 in sequence and is transmitted to the near-infrared light sensor 6. The visible light illuminating the palm passes through the telephoto lens 2 and is reflected by the second semi-transparent mirror 41 and the first reflector 32 in sequence and is transmitted to the visible light sensor 5.

[0109] Computer-readable media include both permanent and non-permanent, removable and non-removable media that can store information by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0110] As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that the embodiments of this specification can be implemented by means of software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solutions of the embodiments of this specification, or the parts that contribute to the prior art, can be embodied in the form of software products. These computer software products can be stored in storage media, such as ROM / RAM, magnetic disks, optical disks, etc., and include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or certain parts of the embodiments of this specification.

[0111] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A palm print, palm vein image acquisition device, characterized by, The application relates to a palm image acquisition device, which comprises a short-focus lens, a long-focus lens, a first lens, a second lens, a visible light photosensitive element and a near-infrared light photosensitive element. When the short-focus lens is turned on, the first lens and the second lens are in the first position, visible light irradiated to the palm is transmitted from the short-focus lens and the first semi-transparent half-mirror in sequence and is transmitted to the visible light photosensitive element, and near-infrared light irradiated to the palm is reflected from the short-focus lens and the second semi-transparent half-mirror in sequence and is transmitted to the near-infrared light photosensitive element. When the long-focus lens is turned on, the first lens and the second lens are in the second position, near-infrared light irradiated to the palm is transmitted from the long-focus lens and the second semi-transparent half-mirror in sequence and is transmitted to the near-infrared light photosensitive element, and visible light irradiated to the palm is reflected from the long-focus lens and the second semi-transparent half-mirror in sequence and is transmitted to the visible light photosensitive element. The extension direction of the first lens in the first position is perpendicular to the extension direction of the first lens in the second position, and the extension direction of the second lens in the first position is perpendicular to the extension direction of the second lens in the second position.

2. The collection device of claim 1, wherein, The first lens is parallel to the second lens in the first position and in the second position.

3. The collection device of claim 2, wherein, The acquisition device comprises a power device and a rotating shaft, the power device drives the rotating shaft to rotate, and the rotating shaft drives the first lens and / or the second lens to rotate.

4. The collection device of claim 1, wherein, The acquisition device comprises a first controller, the power device can rotate between a first stop position and a second stop position, the first controller controls the power device to rotate between the first stop position and the second stop position, the first lens and the second lens are in the first position when the first lens is in the first stop position, and the first lens and the second lens are in the second position when the first lens is in the second stop position.

5. The collection device of claim 4, wherein, The first lens is located below the short-focus lens, the visible light photosensitive element is located below the first lens, the second lens is located below the long-focus lens, and the near-infrared light photosensitive element is located below the second lens.

6. The collection device of claim 1, wherein, The acquisition device comprises a second controller, the second controller controls the first lens to move up and down and / or controls the second lens to move up and down.

7. The collection device of claim 6, wherein, The acquisition device comprises a magnetic member, the second controller controls the direction of a magnetic field generated by the magnetic member to control the first lens and / or the second lens to move up and down.

8. The collection device of claim 7, wherein, The first semi-transparent half-mirror and the first reflecting mirror are fixed together, and the second semi-transparent half-mirror and the second reflecting mirror are fixed together.

9. The collection device of claim 8, wherein, ​ 10. The apparatus of any one of claims 1 to 9, wherein, The collection device further comprises a distance measurer and a control device, the distance measurer measures the case that the palm is located at a first height, the control device controls the short-focus lens to open, the distance measurer measures the case that the palm is located at a second height, the control device controls the long-focus lens to open, and the first height is less than the second height.

11. A method for collecting a palm print and palm vein image, characterized by, The application is applied to a palm print and palm vein image collection device, the collection device comprises a short-focus lens, a long-focus lens, a first lens, a second lens, a visible light photosensitive element and a near-infrared light photosensitive element, the first lens comprises a first semi-transparent half-mirror and a first reflector, and the second lens comprises a second semi-transparent half-mirror and a second reflector; the method comprises: acquiring the height at which the palm is located; if the height at which the palm is located is within the identification range of the short-focus lens, the short-focus lens is controlled to open, visible light irradiated to the palm is transmitted from the short-focus lens and the first semi-transparent half-mirror in sequence and propagates to the visible light photosensitive element, and near-infrared light irradiated to the palm is transmitted from the short-focus lens and is reflected by the first semi-transparent half-mirror and the second reflector in sequence and propagates to the near-infrared light photosensitive element; if the height at which the palm is located is within the identification range of the long-focus lens, the long-focus lens is controlled to open, near-infrared light irradiated to the palm is transmitted from the long-focus lens and the second semi-transparent half-mirror in sequence and propagates to the near-infrared light photosensitive element, and visible light irradiated to the palm is transmitted from the long-focus lens and is reflected by the second semi-transparent half-mirror and the first reflector in sequence and propagates to the visible light photosensitive element.

12. The method of claim 11, wherein, The collection device comprises a first controller, and the method comprises: the first controller controls the first lens and the second lens to rotate between a first position and a second position, the first lens and the second lens are located at the first position when the short-focus lens is opened, and the first lens and the second lens are located at the second position when the long-focus lens is opened.

13. The method of claim 12, wherein, The first controller controls the first lens and the second lens to rotate, comprising: the first controller controls a power device to rotate between a first stop position and a second stop position, the first lens and the second lens are located at the first position when the first stop position, and the first lens and the second lens are located at the second position when the second stop position.

14. The method of claim 11, wherein, The collection device comprises a second controller, and the method comprises: the second controller controls the first lens and the second lens to move up and down.

15. A palm print, palm vein image capturing device, characterized by, The application is applied to a palm print and palm vein image collection device, the collection device comprises a short-focus lens, a long-focus lens, a first lens, a second lens, a visible light photosensitive element and a near-infrared light photosensitive element, the first lens comprises a first semi-transparent half-mirror and a first reflector, and the second lens comprises a second semi-transparent half-mirror and a second reflector; the device comprises: an acquisition module, configured to acquire the height at which the palm is located; the control module controls the short-focus lens to be turned on when the height of the palm is within the recognition range of the short-focus lens, visible light irradiated to the palm is transmitted from the short-focus lens and the first half-transmissive half-reflective mirror in sequence and propagates to the visible light photosensitive element, and near-infrared light irradiated to the palm is transmitted from the short-focus lens and is reflected from the first half-transmissive half-reflective mirror and the second reflective mirror in sequence and propagates to the near-infrared light photosensitive element; and the control module controls the long-focus lens to be turned on when the height of the palm is within the recognition range of the long-focus lens, near-infrared light irradiated to the palm is transmitted from the long-focus lens and the second half-transmissive half-reflective mirror in sequence and propagates to the near-infrared light photosensitive element, and visible light irradiated to the palm is transmitted from the long-focus lens and is reflected from the second half-transmissive half-reflective mirror and the first reflective mirror in sequence and propagates to the visible light photosensitive element.

16. The apparatus of claim 15, wherein, The device comprises a first controller, which controls the first lens and the second lens to rotate between a first position and a second position, the first lens and the second lens are in the first position when the short-focus lens is turned on, and the first lens and the second lens are in the second position when the long-focus lens is turned on. And / or The first controller controls the first lens and the second lens to rotate, which comprises that the first controller controls the power device to rotate between a first stop position and a second stop position, the first lens and the second lens are in the first position when the first stop position, and the first lens and the second lens are in the second position when the second stop position. The device comprises a second controller, which controls the first lens and the second lens to move up and down.

17. An electronic device, comprising: The electronic device comprises: a memory for storing machine-executable instructions; a processor for reading and executing the machine-executable instructions stored in the memory to implement the method in any one of claims 11-14.

18. A computer-readable storage medium, characterized in that, The computer-readable storage medium comprises a stored program, wherein the program controls the device where the computer-readable storage medium is located to execute the method in any one of claims 11-14 when the program is running.

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