Portable paper money auxiliary identification system

Abstract

The invention discloses a portable banknote auxiliary identification system, and relates to the field of currency identification. The system comprises an image acquisition device, a communication module and a display control module, and the image acquisition device and the display control module are connected through the communication module. The image acquisition device is a handheld image acquisition device and is used for acquiring target image information of the target banknote. And the display control module is used for acquiring target image information of the target banknote and displaying a target image corresponding to the target image information in the target interface. According to the technical scheme, the image information is collected through the handheld image collecting device, the collected image information can be displayed through the independent displayer after being processed by the display control module, and the image collecting device and the reality control module are connected in a wired or wireless communication mode. The requirements of displaying paper money image details and being flexible and portable can be met at the same time, and the paper money identification efficiency can be improved in an auxiliary mode.

Description

Technical Field

[0001] This invention relates to the field of currency authentication technology, and in particular to a portable banknote authentication system. Background Technology

[0002] In places such as banks, there is a need to verify the authenticity of banknotes. For manual verification, banknote verification equipment is usually used to collect image information of the banknotes for auxiliary verification. Banknote verification equipment is usually a large, integrated device, which is not convenient and flexible to use. On the other hand, smaller verification equipment has a smaller imaging area, making it difficult to view image details and affecting verification efficiency. Summary of the Invention

[0003] In view of this, this application provides a portable banknote auxiliary identification system, the main purpose of which is to solve the technical problem that traditional banknote auxiliary identification equipment is not convenient enough.

[0004] According to a first aspect of the present invention, a portable banknote auxiliary identification system is provided, comprising: an image acquisition device, a communication module, and a display control module;

[0005] The image acquisition device and the display control module are connected through the communication module;

[0006] The image acquisition device is a handheld image acquisition device used to acquire target image information of the target banknote;

[0007] The display control module is used to acquire the target image information of the target banknote and display the target image corresponding to the target image information in the target interface.

[0008] In some embodiments, the image acquisition device includes a handheld housing and a camera;

[0009] The handheld housing has an internal cavity, and the camera is fixed to the top of the cavity;

[0010] The bottom of the handheld casing is provided with an image acquisition window, and the lens of the camera is directly facing the image acquisition window;

[0011] The camera is used to capture target image information of the target banknote through the image acquisition window.

[0012] In some embodiments, the image acquisition device further includes a plurality of top light-emitting elements and a plurality of side light-emitting elements;

[0013] The top light-emitting elements are evenly distributed around the camera, and the plurality of side light-emitting elements are disposed on the side of the cavity.

[0014] The top light-emitting element and the side light-emitting element are used to provide a light source with multiple spectra.

[0015] In some embodiments, the image acquisition device further includes a controller and a plurality of control keys, the control keys including a light source control key and an image acquisition control key;

[0016] The control key is connected to the controller, and the controller is connected to the top light-emitting element, the side light-emitting element, and the camera;

[0017] The controller is used to control the camera to acquire target image information in response to the image acquisition command issued by the image acquisition control key;

[0018] The controller is used to control the on / off state of the top light-emitting element or the side light-emitting element in response to the light source switching command issued by the light source control key.

[0019] In some embodiments, the display control module is further configured to receive control commands input by the user, and display the target interface corresponding to the control commands and / or send the control commands to the controller;

[0020] The display control module includes a storage unit that stores template images of banknotes with different attributes under different light sources. The template images include global template images and local template images. The attributes of the banknotes include currency type, version, and denomination.

[0021] In some embodiments, the control instructions input by the user include identification mode instructions, which include free identification instructions, local comparison identification instructions, and global comparison identification instructions.

[0022] The display control module is used to display a free identification interface in response to the free identification command, the free identification interface including an image acquisition display area;

[0023] The display control module is used to display a local comparison and identification interface in response to the local comparison and identification command. The local comparison and identification interface includes a template image display area and a captured image display area.

[0024] The display control module is used to respond to the global comparison and identification command and display the global comparison and identification interface, which includes a template image display area and a captured image display area.

[0025] The control commands input by the user also include banknote learning commands;

[0026] The display control module is used to respond to the banknote learning instruction and display a banknote learning interface, which includes a template image display area.

[0027] In some embodiments, the control commands input by the user include acquisition control commands, which include single image acquisition commands, continuous image acquisition commands, and light source selection commands.

[0028] The display control module is used to respond to the single image acquisition command by sending the single image acquisition command to the controller, and the controller controls the camera to acquire the target image information of the target banknote and display the target image in the acquired image display area;

[0029] The display control module is used to respond to the continuous image acquisition command by sending the continuous image acquisition command to the controller. The controller controls the light-emitting element to provide light sources of different spectra in sequence, and controls the camera to acquire target image information corresponding to the target banknote under different spectra in sequence, and displays the target image in the acquired image display area.

[0030] The display control module is used to respond to the light source selection command by sending the light source selection command to the controller, and the controller controls the switching state of the light-emitting element according to the light source selection command.

[0031] In some embodiments, the control instructions input by the user also include template attribute selection instructions, which include currency selection instructions, version denomination selection instructions, obverse / reverse selection instructions, and light source selection instructions.

[0032] The display control module is used to respond to the template attribute selection instruction by displaying the global template image corresponding to the template attribute selection instruction in the template image display area.

[0033] In some embodiments, the template attribute selection instruction further includes a template region selection instruction, wherein the template region selection instruction carries local template image identification information;

[0034] The display control module is used to respond to the template region selection instruction and display the local template image corresponding to the local template image identification information in the template image display area.

[0035] In some embodiments, the control commands input by the user may also include zoom commands, move commands, save commands, image view commands, and historical data view commands;

[0036] The display control module is used to respond to the scaling command and reduce or enlarge the image in the display interface according to the scaling ratio;

[0037] The display control module is used to respond to the movement command and move the image in the display interface according to the movement direction and movement distance;

[0038] The display control module is used to store the acquired target image information in response to the storage instruction; the display control module is used to display the stored target image in response to the image viewing instruction.

[0039] The display control module is used to respond to the historical data viewing instruction and display the historical data, which includes the identification method, currency, version and denomination, collection time and the target image collected.

[0040] This application provides a portable banknote authentication system, comprising: an image acquisition device, a communication module, and a display control module, wherein the image acquisition device and the display control module are connected through the communication module. The image acquisition device is a handheld device used to acquire target image information of a target banknote. The display control module acquires the target image information of the target banknote and displays the corresponding target image on a target interface. By means of the above technical solution, image information is acquired through a handheld image acquisition device, and the acquired image information, after processing by the display control module, can be displayed on a separate display. The image acquisition device and the display control module are connected via wired or wireless communication, which can simultaneously meet the requirements of displaying banknote image details and flexible portability, thereby improving the efficiency of banknote authentication.

[0041] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0042] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0043] Figure 1 This diagram illustrates the structure of a portable banknote auxiliary identification system provided in an embodiment of the present invention.

[0044] Figure 2 This invention provides a schematic diagram of the structure of another portable banknote auxiliary identification system.

[0045] Figure 3 This diagram shows a cross-sectional view of an image acquisition device provided in an embodiment of the present invention;

[0046] Figure 4 This figure shows a front view of an image acquisition device provided in an embodiment of the present invention;

[0047] Figure 5 A top view of an image acquisition device provided in an embodiment of the present invention is shown;

[0048] Figure 6 A schematic diagram of a user interface provided by an embodiment of the present invention is shown;

[0049] Figure 7 A schematic diagram of a free identification interface provided by an embodiment of the present invention is shown;

[0050] Figure 8 A schematic diagram of a comparison and identification interface provided in an embodiment of the present invention is shown;

[0051] Figure 9 A schematic diagram of a banknote learning interface provided in an embodiment of the present invention is shown;

[0052] Figure 10 A schematic diagram of the structure of a display device provided in an embodiment of the present invention is shown. Detailed Implementation

[0053] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0054] In one embodiment, a portable banknote authentication system is provided, such as... Figure 1 and Figure 2 As shown, the portable banknote auxiliary identification system includes: an image acquisition device 100, a communication module 300, and a display control module 200, wherein the image acquisition device 100 and the display control module 200 are connected through the communication module 300. The image acquisition device 100 is a handheld image acquisition device used to acquire target image information of the target banknote. The display control module 200 is used to acquire the target image information of the target banknote and display the target image corresponding to the target image information on a target interface.

[0055] In this embodiment, the image acquisition device 100 includes a camera 110 for acquiring target image information of the target banknote. The target banknote refers to the banknote to be identified, and the target image information refers to the information corresponding to the portion of the target banknote image captured by the camera 110. In this embodiment, the image acquisition device 100 has a small, handheld casing. In actual use, the image acquisition device 100 is placed on the target banknote, and by moving the device by hand, image information of different parts of the target banknote can be acquired as needed. After acquiring the target image information, the image acquisition device 100 sends the target image information to the display control module 200 via the communication module 300. The display control module 200 converts the target image information into a visualized target image for display. The display control module 200 can be a software program module, installed in a display device to display the target image and corresponding display control functions. The display device can be a mobile terminal, such as a mobile phone or tablet computer. Alternatively, the display control module 200 can be a display device with a built-in display control program. The image acquisition device 100 and the display control module can communicate via wired or wireless means.

[0056] Using the above technical solution, the target image information of the target banknote is acquired by the handheld image acquisition device 100, and then the target image is displayed by the display control module 200. The image acquisition device 100 and the display control module 200 are designed separately, and the image acquisition device 100 and the display control module 200 communicate with each other by wired or wireless means. It is easy to operate, flexible and portable during use, and different sizes of displays can be selected to display the target image according to needs, which facilitates observation of the image details of the target banknote and helps to improve the efficiency and accuracy of banknote identification.

[0057] In one embodiment, the image acquisition device 100 includes a handheld housing and a camera 110. The handheld housing has an internal cavity, and the camera 110 is fixed to the top of the cavity. The bottom of the handheld housing has an image acquisition window 140, and the lens of the camera 110 faces the image acquisition window 140. The camera 110 is used to acquire target image information of the target banknote through the image acquisition window 140.

[0058] In the above embodiments, such as Figure 2 A schematic diagram of the image acquisition device 100 in the middle. Figure 3 Cross-sectional view of the image acquisition device 100 Figure 4 Top view of the image acquisition device 100 and Figure 5As shown in the bottom view of the image acquisition device 100, the image acquisition device 100 includes a handheld housing and a camera 110 for acquiring image information. The handheld housing serves two purposes: firstly, to house the components of the image acquisition device 100, and secondly, to be held in hand for capturing images of target banknotes. The handheld housing is compact, flexible in use, and easy to carry. The interior of the handheld housing forms a cavity to accommodate the components of the image acquisition device 100. (The text repeats itself here.) Figure 3 As shown, the camera 110 of the image acquisition device 100 is fixedly mounted on the top of the cavity. The distance between the camera 110 and the target banknote can be about 3 centimeters to achieve an imaging field of view of about 3 centimeters. Specifically, the camera 110 can be a 2-megapixel to 5-megapixel camera to obtain high-definition images. It should be noted that the specific parameters listed in this embodiment are only examples, and can be flexibly adjusted and selected as needed in actual applications.

[0059] like Figure 5 As shown, the bottom of the handheld casing has an image acquisition window 140 for image acquisition, and the lens of the camera 110 faces the image acquisition window 140. That is, there is a hollow part at the bottom of the handheld casing. During use, the target banknote is laid on the bottom of the image acquisition device 100, and the lens of the camera 110 is vertically downward. The camera 110 can capture the image of the target banknote through the hollow part and obtain the target image information.

[0060] In one embodiment, the image acquisition device 100 further includes a plurality of top light-emitting elements 121 and a plurality of side light-emitting elements 122. The top light-emitting elements 121 are evenly distributed around the camera 110, and the plurality of side light-emitting elements 122 are disposed on the sides of the cavity. The top light-emitting elements 121 and the side light-emitting elements 122 are used to provide light sources with multiple spectra.

[0061] In the above embodiments, to improve imaging quality and acquire image details of the target banknote, the image acquisition device 100 is equipped with multiple light-emitting elements to provide light sources of different angles and spectra. Specifically, such as... Figure 3 and Figure 5 As shown, the light-emitting elements may include top light-emitting elements 121 evenly arranged around the camera 110. The height of the top light-emitting elements 121 is the same as the height of the camera 110. The top light-emitting elements 121 include multiple spectra, and each spectrum has multiple light-emitting elements evenly distributed around the camera 110 to provide uniform light. The light-emitting elements also include side light-emitting elements 122, which are disposed on the side of the internal cavity of the handheld housing, surrounding the image acquisition window 140. The height of the side light-emitting elements 122 is lower than that of the camera 110 and close to the surface of the target banknote, in order to highlight the three-dimensional image information of the target banknote.

[0062] The reflective element's spectrum can include white light, infrared light at 850nm, infrared light at 940nm, ultraviolet light at 275nm, ultraviolet light at 365nm, red light, green light, blue light, etc. By setting light sources with different angles and spectra, imaging information and surface three-dimensional image information of the target banknote under multiple spectra can be obtained, meeting the needs of different light sources and improving the accuracy of banknote identification.

[0063] In one embodiment, the image acquisition device 100 further includes a controller and a plurality of control keys 130, including a light source control key 130 and an image acquisition control key 130. The control keys 130 are connected to the controller, which is connected to the top light-emitting element 121, the side light-emitting element 122, and the camera 110. The controller is configured to control the camera 110 to acquire target image information in response to an image acquisition command issued by the image acquisition control key 130. The controller is also configured to control the on / off state of the top light-emitting element 121 or the side light-emitting element 122 in response to a light source switching command issued by the light source control key 130.

[0064] In the above embodiments, the image acquisition device 100 includes a controller, which controls the camera 110 to acquire target images and select the light source. Specifically, as shown... Figure 4 As shown, the image acquisition device 100 also includes control keys 130. Users can send control commands to the controller via the control keys 130. The control keys 130 can be located on the top or side of the handheld housing for easy operation. There can be multiple control keys 130, each corresponding to a different control function. For example, they may include a top light source control key, a side light source control key, and an image acquisition control key. The top light source control key controls the switching of the top light source, and the side light source control key controls the switching of the side light source. Specifically, the controller can switch the light source by controlling the on / off state of the light-emitting element. Through the top light source control key, the side light source control key, and the controller, multiple light source combinations can be achieved, allowing for the acquisition of images under different light source combinations. The image acquisition control key is used to control the camera 110 to capture the target image and obtain target image information.

[0065] In one embodiment, the display control module 200 is further configured to receive control commands input by the user, and display the target interface corresponding to the control commands and / or send the control commands to the controller. The display control module 200 includes a storage unit storing template images of banknotes with different attributes under different light sources. The template images include global template images and local template images, and the banknote attributes include currency type, version, and denomination.

[0066] In the above embodiments, the display control module 200 can be a software program installed in the display device, or it can be a display device with a built-in corresponding display control program. Users can input control commands at the image acquisition device 100 to control image acquisition and light source switching, or they can input control commands through the display control module 200. The display control module 200 is provided with an interactive interface to receive control commands input by the user. In response to the user's input control commands, the display control module 200 can display the target interface corresponding to the control command and / or send the control command to the controller of the image acquisition device 100 to execute the corresponding control action.

[0067] The display control module 200 also includes a storage unit that pre-stores various real banknote image templates. These template images include front and back images of banknotes with different attributes under various light sources. The banknote attributes include currency (e.g., US dollars, euros, RMB, etc.), version (e.g., year), and denomination (e.g., 5 yuan, 20 yuan, 100 yuan, etc.). The banknote template images also include global template images and local template images. A global template image refers to a complete template image of the entire banknote, while a local template image refers to a template image of a specific area within the banknote. By storing these banknote template images, real banknote images can be provided for reference in banknote identification, improving identification efficiency and accuracy.

[0068] In one embodiment, the control commands input by the user include identification mode commands, which include free identification commands, local comparison identification commands, and global comparison identification commands; the display control module 200 is used to display a free identification interface in response to the free identification command, the free identification interface including a captured image display area; the display control module 200 is used to display a local comparison identification interface in response to the local comparison identification command, the local comparison identification interface including a template image display area and a captured image display area; the display control module 200 is used to display a global comparison identification interface in response to the global comparison identification command, the global comparison identification interface including a template image display area and a captured image display area; the control commands input by the user also include banknote learning commands; the display control module 200 is used to display a banknote learning interface in response to the banknote learning commands, the banknote learning interface including a template image display area.

[0069] In the above embodiments, such as Figure 6As shown, the display control module 200 can display a user interface, which may include corresponding controls for the user to input control commands. Specifically, this embodiment provides multiple identification modes, including free identification, local comparison identification, and global comparison identification. Free identification refers to the user acquiring and / or photographing an image of any area of ​​the target banknote under any light source, and displaying the corresponding image on the target interface, thereby identifying the target banknote based on the image. Local comparison identification refers to the user selecting any local banknote template image as needed, and acquiring the target image through the image acquisition device 100, simultaneously displaying the local banknote template image and the target image on the target interface for comparison. Global comparison identification refers to the user selecting any global banknote template image as needed, and acquiring the target image through the image acquisition device 100, simultaneously displaying the global banknote template image and the target image on the target interface for comparison.

[0070] Specifically, users can select the appropriate authentication mode by inputting authentication mode commands as needed. In one example, when the display control module 200 responds to the free authentication command, it displays the free authentication interface, such as... Figure 7 As shown, the free identification interface includes an image display area for displaying the target image acquired by the user. When the display control module 200 responds to a local comparison identification command, it displays the local comparison identification interface, as shown below. Figure 8 As shown, the local comparison and identification interface includes a template image display area and a captured image display area. The template image display area displays the banknote template image, and the captured image display area displays the target image captured by the user. When the display control module 200 responds to the global comparison and identification command, it displays the global comparison and identification interface, as shown below. Figure 8 As shown, the global comparison and identification interface also includes a template image display area and a captured image display area. The template image display area is used to display banknote template images, and the captured image display area is used to display the target image captured by the user.

[0071] This embodiment also provides a banknote learning function, which helps users improve their banknote identification ability by learning from pre-stored banknote template images. Specifically, users can... Figure 6 The banknote learning control shown accepts banknote learning commands. When the display control module 200 responds to the banknote learning command, the banknote learning interface is displayed, such as... Figure 9 As shown, the banknote learning interface includes a template image display area for displaying the banknote template image selected by the user.

[0072] In one embodiment, the control commands input by the user include acquisition control commands, which include single image acquisition commands, continuous image acquisition commands, and light source selection commands. The display control module 200 is configured to, in response to the single image acquisition command, send the single image acquisition command to the controller, which controls the camera 110 to acquire target image information of the target banknote and display the target image in the acquired image display area. The display control module 200 is also configured to, in response to the continuous image acquisition command, send the continuous image acquisition command to the controller, which controls the light-emitting element to sequentially provide light sources of different spectra and controls the camera 110 to sequentially acquire target image information corresponding to the target banknote under different spectra, and display the target image in the acquired image display area. Finally, the display control module 200 is configured to, in response to the light source selection command, send the light source selection command to the controller, which controls the on / off state of the light-emitting element according to the light source selection command.

[0073] In the above embodiments, after the user selects the authentication mode, such as Figure 7 and Figure 8As shown, corresponding controls can be displayed on the target interface corresponding to the identification mode, allowing the user to input control commands. Specifically, when it is necessary to collect image information of the target banknote, a collection control command can be input. This command can include a single image collection command, a continuous image collection command, and a light source selection command. The single image collection command is used to control the camera 110 to capture the target banknote image in a single shot. The continuous image collection command is used to control the light-emitting element to sequentially switch between different light sources, while simultaneously controlling the camera 110 to sequentially capture target images of the target banknote under different light sources. The continuous image acquisition command can include classic image acquisition commands, incremental image acquisition commands, and full image acquisition commands. Classic image acquisition commands refer to sequentially acquiring images under preset classic light sources. For example, four classic light sources can be set: top white light, top infrared light (940nm), side red light, and top ultraviolet light (365nm). Incremental image acquisition commands refer to sequentially acquiring images under preset incremental light sources. For example, six incremental light sources can be set: top white light, side white light, top infrared light (850nm), top infrared light (940nm), side infrared light, and side ultraviolet light (365nm). Full image acquisition commands refer to sequentially acquiring images under all preset light sources. Classic image acquisition and incremental image acquisition are used to acquire typical features of the target image in a shorter acquisition time, while full image acquisition is used to acquire richer features of the target image. The light source selection command is used to control the light-emitting element to provide a light source that is consistent with the spectral and positional information carried by the light source selection command. The spectral information refers to the spectral type of the light source, and the positional information refers to the position of the light source, such as red light from the top, white light from the side, etc. The spectral and positional information can include multiple spectra and positions, thereby enabling the acquisition of images under different combinations of light sources.

[0074] In the above embodiments, after selecting different identification modes, image acquisition commands can be input as needed. For example, for free identification, a single image acquisition command can be input, allowing the user to switch light sources based on experience to view the image features of the target banknote and capture the target image. Similarly, for local comparison identification, a single image acquisition command, a classic image acquisition command, an incremental image acquisition command, or a full image acquisition command can be input as needed, and the target image can be captured accordingly.

[0075] In one embodiment, the control command input by the user further includes a template attribute selection command, which includes a currency selection command, a version denomination selection command, a front / back selection command, and a light source selection command; the display control module 200 is used to respond to the template attribute selection command by displaying a global template image corresponding to the template attribute selection command in the template image display area.

[0076] In the above embodiments, for interfaces that require displaying banknote template images, such as local comparison identification, global comparison identification, and banknote learning, a template attribute control can also be displayed. This allows the user to input template attribute selection commands to select the currency, version, denomination, front and back, and light source corresponding to the template image to be displayed. For example, when the user selects RMB as the currency, 2015 edition 100 RMB as the version, front and back as the front, and top white light as the light source, the display control module 200 will display the entire front template image of the 2015 edition 100 RMB under white light in the template image display area.

[0077] In one embodiment, the template attribute selection instruction further includes a template region selection instruction, wherein the template region selection instruction carries local template image identification information; the display control module 200 is configured to respond to the template region selection instruction by displaying the local template image corresponding to the local template image identification information in the template image display area.

[0078] In the above embodiments, for any global banknote template image, corresponding local images (i.e., local template images) and corresponding identification information (i.e., local template image identification information) are pre-stored according to the characteristics of banknotes with different attributes. For local comparison and identification, after the user determines the banknote attribute, the display control module 200 first displays the global banknote template image with identification information corresponding to the banknote attribute in the template image display area. Next, the user can input a template area selection command based on the local template image identification information, and then the display control module 200 displays the local template image corresponding to the local template image identification information in the template image display area. Specifically, the identification information of the local template image can be marked in the form of a control on the corresponding position of the corresponding global banknote template image, which is used to trigger the control at the corresponding position to display the local template image at the corresponding position in the template image display area.

[0079] In the above embodiments, when the user inputs a light source selection command, the light source of the target image and the light source of the banknote template image can be controlled simultaneously, that is, the light sources of the target image and the template image displayed in the target interface are consistent.

[0080] The portable banknote authentication system provided in this embodiment can also process the acquired target image. For example, it can identify and extract the banknote serial number from the target image for display and storage. Specifically, after the camera acquires the target image, the software algorithm can locate the serial number area on the banknote in the target image, and then use character recognition to identify the serial number in the serial number area. Another example is comparing the target image with a template image to determine the authenticity of the banknote. Specifically, the camera acquires global and detailed images of the target banknote under multiple light sources (multispectral). Then, the software algorithm fuses the multispectral global and detailed images and compares them with a template image of a genuine banknote to obtain the authentication result of the target banknote. The authentication result can also be stored.

[0081] In one embodiment, the control commands input by the user further include zoom commands, move commands, store commands, image view commands, and historical data view commands; the display control module 200 is used to respond to the zoom command by scaling the image in the display interface according to the zoom ratio; the display control module 200 is used to respond to the move command by moving the image in the display interface according to the move direction and move distance; the display control module 200 is used to respond to the store command by storing the collected target image information; the display control module 200 is used to respond to the image view command by displaying the stored target image; the display control module 200 is used to respond to the historical data view command by displaying the historical collected data, which includes the identification method, currency, version denomination, collection time, and collected target image.

[0082] In the above embodiments, the display control module 200 supports touch interaction. By detecting the sliding trajectory trend of the user input, it determines the user's zoom and move commands, and zooms in, zooms out, and moves the image on the display interface according to the commands, thereby enabling flexible viewing of template images and details of captured images. For example, when the user's two fingers (two input touch points) slide in opposite directions, it can be determined as an image zoom-out command, and the image on the display interface can be zoomed out according to the corresponding zoom-out ratio; when the user's two fingers slide away in opposite directions, it can be determined as an image zoom-in command, and the image on the display interface can be zoomed out according to the corresponding zoom-in ratio; when the user's two fingers slide in the same direction, it can be determined as a move command, and the image on the display interface can be moved according to the sliding direction and distance. In some interfaces, such as... Figure 7 , Figure 8As shown, it may also include storage controls, image viewing controls, and historical data viewing controls, so that users can input corresponding commands. For example, after the camera 110 captures a target image, a storage command can be input to store the captured target image information, and an image viewing command can be input to view the stored target image. After one or more authentications are completed, a historical data viewing command can be input to review historically acquired data.

[0083] In the above embodiments, different storage actions can be performed after inputting a storage command for different image acquisition modes, including storing a single target image, storing multiple target images, and storing the target image and its corresponding template image simultaneously. For example, in the free identification mode, if the user inputs a single image acquisition command and captures a target image, and then inputs a storage command, the target image acquired in the single acquisition can be stored. After storing the target image, the user can also input an image viewing command, and the display control module 200 responds to the image viewing command by displaying the stored target image on the user interface. As another example, in the local contrast identification mode, if the user inputs a storage command in the single image acquisition mode, the target image acquired in the single acquisition and its corresponding local template image are stored; if the user inputs a storage command in the continuous image acquisition mode, the target image acquired each time and its corresponding local template image are stored. Correspondingly, if the display control module 200 receives an image viewing command, it displays the stored target image and its corresponding local template image on the user interface. For example, in the global comparison and identification mode, if the user enters a storage command in the single image acquisition mode, the target image acquired in that single acquisition will be stored; if the user enters a storage command in the continuous image acquisition mode, the target image acquired in each subsequent acquisition will be stored.

[0084] In the above embodiments, the display control module 200 can be a software program installed in the display device, or it can be a display device with a built-in corresponding program. If the display control module 200 is a display device, the structure of the display device can be as follows: Figure 10As shown, the display device includes a monitor, memory, controller, user interface, and communication interface. The monitor includes a display screen assembly for presenting images and a driving assembly for driving the image display, used to display image content, user interface, and controls. Users can input user commands through the graphical user interface (GUI) displayed on the monitor. The controller controls the operation of the display device and responds to user operation commands through software control programs stored in the memory. The controller controls the overall operation of the display device. The user interface is an interface that can be used to receive control input. The display device supports touch operation; that is, the display device also includes a touch component, which is a touch panel set on the monitor screen that can detect user touch operations on the monitor in real time. The touch component is also connected to the controller of the display device to send the detected touch operation signals to the controller. The controller then allows the user to complete different control operations through touch actions according to the preset interaction strategies in the display device's operating system.

[0085] The portable banknote authentication system provided in this application adopts a handheld small image acquisition device. While meeting the depth-of-field requirements of camera imaging, it is compact and portable. Banknote authentication can be achieved by connecting to a mobile display terminal, meeting the requirements of banknote counting in various situations and improving convenience. It pre-stores template images of various banknotes under different spectral light sources. During authentication, the acquired target image can be compared with the template image from all angles, and the image can be moved and zoomed to facilitate observation of image details, thus improving the flexibility and accuracy of banknote authentication.

[0086] This application also provides a computer device, specifically a personal computer, server, network device, etc. The computer device includes a bus, processor, memory, and communication interface, and may also include input / output interfaces and a display device. The processor of the computer device provides computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database of the computer device stores location information. The network interface of the computer device is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements the steps in the various embodiments.

[0087] Those skilled in the art will understand that the structure of the computer device described above is only a partial structure related to the solution of this application, and does not constitute a limitation on the computer device to which the solution of this application is applied. A specific computer device may include more or fewer components, or combine certain components, or have different component arrangements.

[0088] In one embodiment, a computer-readable storage medium is provided, which may be non-volatile or volatile, having stored thereon a computer program that, when executed by a processor, implements the steps in the above embodiments.

[0089] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above embodiments.

[0090] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0091] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A portable banknote auxiliary identification system, characterized in that, include: Image acquisition device, communication module, and display control module; The image acquisition device and the display control module are connected through the communication module; The image acquisition device is a handheld image acquisition device used to acquire target image information of the target banknote; The display control module is used to acquire the target image information of the target banknote and display the target image corresponding to the target image information in the target interface.

2. The portable banknote auxiliary identification system according to claim 1, characterized in that, The image acquisition device includes a handheld housing and a camera; The handheld housing has an internal cavity, and the camera is fixed to the top of the cavity; The bottom of the handheld casing is provided with an image acquisition window, and the lens of the camera is directly facing the image acquisition window; The camera is used to capture target image information of the target banknote through the image acquisition window.

3. The portable banknote auxiliary identification system according to claim 2, characterized in that, The image acquisition device also includes multiple top light-emitting elements and multiple side light-emitting elements; The top light-emitting elements are evenly distributed around the camera, and the plurality of side light-emitting elements are disposed on the sides of the cavity. The top light-emitting element and the side light-emitting element are used to provide a light source with multiple spectra.

4. The portable banknote auxiliary identification system according to claim 3, characterized in that, The image acquisition device also includes a controller and multiple control keys, including a light source control key and an image acquisition control key; The control key is connected to the controller, and the controller is connected to the top light-emitting element, the side light-emitting element, and the camera; The controller is used to control the camera to acquire target image information in response to the image acquisition command issued by the image acquisition control key; The controller is used to control the on / off state of the top light-emitting element or the side light-emitting element in response to the light source switching command issued by the light source control key.

5. The portable banknote auxiliary identification system according to claim 4, characterized in that, The display control module is also used to receive control commands input by the user, and display the target interface corresponding to the control command and / or send the control command to the controller; The display control module includes a storage unit that stores template images of banknotes with different attributes under different light sources. The template images include global template images and local template images. The attributes of the banknotes include currency type, version, and denomination.

6. The portable banknote auxiliary identification system according to claim 5, characterized in that, The control commands input by the user include authentication mode commands, which include free authentication commands, local comparison authentication commands, and global comparison authentication commands. The display control module is used to display a free identification interface in response to the free identification command, the free identification interface including an image acquisition display area; The display control module is used to display a local comparison and identification interface in response to the local comparison and identification command. The local comparison and identification interface includes a template image display area and a captured image display area. The display control module is used to respond to the global comparison and identification command and display the global comparison and identification interface, which includes a template image display area and a captured image display area. The control commands input by the user also include banknote learning commands; The display control module is used to respond to the banknote learning instruction and display a banknote learning interface, which includes a template image display area.

7. The portable banknote auxiliary identification system according to claim 6, characterized in that, The control commands input by the user include acquisition control commands, which include single image acquisition commands, continuous image acquisition commands, and light source selection commands. The display control module is used to respond to the single image acquisition command by sending the single image acquisition command to the controller, and the controller controls the camera to acquire the target image information of the target banknote and display the target image in the acquired image display area; The display control module is used to respond to the continuous image acquisition command by sending the continuous image acquisition command to the controller. The controller controls the light-emitting element to provide light sources of different spectra in sequence, and controls the camera to acquire target image information corresponding to the target banknote under different spectra in sequence, and displays the target image in the acquired image display area. The display control module is used to respond to the light source selection command by sending the light source selection command to the controller, and the controller controls the switching state of the light-emitting element according to the light source selection command.

8. The portable banknote auxiliary identification system according to claim 6, characterized in that, The control commands input by the user also include template attribute selection commands, which include currency selection commands, version and denomination selection commands, obverse and reverse selection commands, and light source selection commands. The display control module is used to respond to the template attribute selection instruction by displaying the global template image corresponding to the template attribute selection instruction in the template image display area.

9. The portable banknote auxiliary identification system according to claim 8, characterized in that, The template attribute selection instruction also includes a template region selection instruction, wherein the template region selection instruction carries local template image identification information; The display control module is used to respond to the template region selection instruction and display the local template image corresponding to the local template image identification information in the template image display area.

10. The portable banknote auxiliary identification system according to claim 5, characterized in that, The control commands input by the user also include zoom commands, move commands, save commands, image view commands, and historical data view commands; The display control module is used to respond to the scaling command and reduce or enlarge the image in the display interface according to the scaling ratio; The display control module is used to respond to the movement command and move the image in the display interface according to the movement direction and movement distance; The display control module is used to store the acquired target image information in response to the storage instruction; The display control module is used to display the stored target image in response to the image viewing command; The display control module is used to respond to the historical data viewing instruction and display the historical data, which includes the identification method, currency, version and denomination, collection time and the target image collected.

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