WO2018072178A1 - 一种基于虹膜识别的图像预览方法及装置 - Google Patents
一种基于虹膜识别的图像预览方法及装置 Download PDFInfo
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- WO2018072178A1 WO2018072178A1 PCT/CN2016/102723 CN2016102723W WO2018072178A1 WO 2018072178 A1 WO2018072178 A1 WO 2018072178A1 CN 2016102723 W CN2016102723 W CN 2016102723W WO 2018072178 A1 WO2018072178 A1 WO 2018072178A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/19—Sensors therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/193—Preprocessing; Feature extraction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/197—Matching; Classification
Definitions
- the present invention relates to the field of iris recognition technology, and in particular, to an image preview method and apparatus based on iris recognition.
- Iris recognition technology is based on the iris in the eye for identification, and the iris is a ring-shaped part between the black pupil and the white sclera. Since each person's iris does not change after the fetal development stage, and the iris is in the iris. It contains many detailed features of interlaced spots, filaments, crowns, stripes, crypts, etc. Therefore, each person's iris is unique, which determines the uniqueness of identity recognition using iris recognition technology.
- the existing iris recognition technology requires an additional infrared camera on the hardware (it can also be combined with a normal forward camera, but it is still equivalent to two optical paths and technology, but the physical structure is merged) and one An infrared fill light (illuminate the face and eyes with infrared light), then collect the user's eyeball image through the infrared camera, and process the captured eyeball image into a template for preservation or comparison.
- image registration such as iris registration or recognition
- the eyeball image captured by the iris camera is a black and white physiological image of the eyeball, the user feels uncomfortable.
- An embodiment of the present invention provides an image recognition method and apparatus based on iris recognition, which is used to solve the problem that the iris image of the preview interface is displayed in real time during the process of image previewing, such as iris registration or recognition.
- an image preview method based on iris recognition including:
- determining a user type of the subject according to an iris parameter of the iris pattern In a case where an iris pattern is included in the infrared image, determining a user type of the subject according to an iris parameter of the iris pattern;
- the non-infrared image including a replacement pattern of the iris pattern, the position of the replacement pattern in the non-infrared image being Position determination in the infrared image;
- the non-infrared image is displayed within the image preview area.
- an image preview apparatus based on iris recognition including:
- a determining module configured to determine, according to an iris parameter of the iris pattern, a user type of the object to be photographed, in a case where an infrared image is included in the infrared image acquired by the acquiring module;
- the acquiring module is further configured to acquire a non-infrared image that matches a user type of the object, the non-infrared image includes a replacement pattern of the iris pattern, and the replacement pattern is in the non-infrared image.
- the position is determined by the position of the iris pattern in the infrared image;
- control module configured to display the non-infrared image acquired by the acquiring module in the image preview area.
- an image recognition apparatus based on iris recognition comprising a processor configured to support the apparatus to perform a corresponding function in the above method.
- the apparatus can also include a memory for coupling with the processor to store computer software code for use in the iris recognition based image preview device, comprising a program designed to perform the above aspects.
- a computer storage medium for storing computer software instructions for use in an iris recognition based image preview device, comprising program code designed to perform the iris recognition based image preview method of the above aspect.
- a computer program is provided that can be directly loaded into an internal memory of a computer and includes software code that can be loaded and executed by a computer to implement the iris recognition-based image preview method described in the above aspects.
- a robot comprising the iris recognition based image preview device of the third aspect.
- the solution provided by the present invention determines the user type of the object according to the iris parameter of the iris pattern in the case where the iris image collected by the infrared lens is included, and then acquires the object with the object based on the user type.
- the position of the replacement pattern of the iris pattern in the non-infrared image is determined by the position of the iris pattern in the infrared image, that is, the position of the replacement pattern in the non-infrared image will follow the iris in a period of time.
- the pattern moves in the movement of the position in the infrared image; enabling the user to adjust the position of the subject's eyeball (also referred to as a human face) or adjust the infrared lens in real time by viewing the position of the pattern in the non-infrared image of the preview area.
- the solution reduces the user's resistance to the infrared iris pattern during the preview process on the premise of ensuring that the user normally completes the requirements of iris registration, recognition, and unlocking.
- FIG. 1 is a flowchart of a method for previewing an image based on iris recognition according to an embodiment of the present invention
- 2a is a schematic diagram of a non-infrared image including an alternate pattern of an iris pattern displayed in an image preview area according to an embodiment of the present invention
- FIG. 2b is another alternative pattern including an iris pattern according to an embodiment of the present invention. Schematic diagram of the non-infrared image displayed in the image preview area;
- FIG. 3 is a flowchart of another method for image previewing based on iris recognition according to an embodiment of the present invention.
- 4a is a schematic diagram of displaying a non-infrared image in an image preview area by using a puzzle manner according to an embodiment of the present invention
- FIG. 4b is a schematic diagram of displaying a non-infrared image in an image preview area by an eyeball capture technology according to an embodiment of the present invention
- FIG. 5 is a schematic structural diagram of an image preview apparatus based on iris recognition according to an embodiment of the present invention.
- FIG. 6 is a schematic structural diagram of another image preview device based on iris recognition according to an embodiment of the present invention.
- FIG. 7 is a schematic structural diagram of another image preview apparatus based on iris recognition according to an embodiment of the present invention.
- Iris is a fabric-like annular part between the black pupil and the white sclera of the eye. It has a rich and different texture pattern.
- the diameter of the human iris is generally between 11 mm and 12 mm, and each person's The iris does not change after it is formed in the fetal development stage.
- the iris contains many intertwined details such as crowns, crystals, filaments, spots, structures, crypts, rays, wrinkles and streaks. These details determine The uniqueness of the iris feature also determines the uniqueness of the identity.
- Iris Recognition is based on the iris in the eye for identification. It usually takes four steps, including iris pattern acquisition, image preprocessing, iris feature extraction, and feature preservation (when registering) or feature matching (recognition). Applied to security equipment (such as doors Forbidden) and places with high confidentiality requirements.
- the iris pattern acquisition refers to using an infrared lens to capture the entire iris of the human to obtain an infrared iris pattern;
- the image preprocessing refers to performing preprocessing operations including image smoothing, edge detection, image separation, etc. on the captured iris pattern;
- Feature extraction refers to extracting and encoding unique feature points of the iris from the iris pattern by a specific algorithm.
- Feature matching refers to the iris of the iris pattern stored in advance according to the feature of the extracted iris detail feature. The feature codes of the detail features are compared and verified to achieve the purpose of recognition.
- Infrared lens which is an infrared camera, usually appears in pairs with an infrared light generator (for example, an infrared fill light).
- the infrared light generator is used to generate infrared light to illuminate the face and eyes of the subject, and then through the infrared.
- the lens captures the face and the eye of the subject illuminated by the infrared light, thereby obtaining an infrared image including an eyeball image of the subject, usually a black-and-white or a greenish image.
- non-infrared lens is a lens other than the infrared camera, for example, a conventional front camera in a smart phone, which is not limited by the present invention.
- the basic principle of the technical solution provided by the embodiment of the present invention is: in the process of performing image previewing, such as iris registration or recognition, if the infrared image collected by the infrared lens includes an iris pattern, the iris parameter based on the iris pattern is determined. Out of the user type of the subject, and then selecting a non-infrared image of the iris pattern that matches the user pattern to match the user pattern, and according to the position of the iris pattern in the infrared image, the non-infrared The image is displayed in the image preview area, thereby preventing the subject from viewing the infrared image containing the iris pattern.
- image previewing such as iris registration or recognition
- the execution body of the iris recognition-based image preview method provided by the embodiment of the present invention may be an iris recognition-based image preview device or a terminal device that can be used to execute the above-described iris recognition-based image preview method.
- the image preview device based on the iris recognition may be a combination of a central processing unit (CPU), a CPU and a memory in the terminal device, or may be another control unit or module in the terminal device.
- the terminal device may be a personal computer (PC), a netbook, or a personal digital assistant (English: Personal Digital Assistant, referred to as a personal digital assistant, which is used to analyze the infrared image collected by the infrared lens by using the method provided by the embodiment of the present invention.
- the hardware implementation environment can be in the form of a general-purpose computer, or an ASIC, or an FPGA, or some programmable extension platform such as Tensilica's Xtensa platform.
- an embodiment of the present invention provides an image based on iris recognition.
- the preview method as shown in FIG. 1, includes the following steps:
- the application can control the infrared lens to be turned on, and further control the infrared fill light to be turned on.
- the infrared lens can acquire the infrared image in real time for the object to be photographed.
- the user type of the subject is determined according to the iris parameter of the iris pattern.
- the iris pattern of the infrared image in the embodiment of the present invention is a partial image of the infrared image, and the partial image includes an iris pattern or an eyeball pattern.
- the iris parameters of the iris pattern in the embodiments of the present invention include, but are not limited to, the diameter or radius of the iris, the iris color, the iris characteristic information, and the like.
- Each user type appearing in the embodiment of the present invention has a corresponding user type identifier corresponding thereto.
- the division of the user type in the embodiment of the present invention may be divided according to age (for example, children, adults, and the elderly), or may be divided according to the user's gender (for example, female, male), which is not limited herein, and may be used in practical applications.
- the present invention is not limited as long as it is divided according to specific needs.
- embodiments of the present invention may determine the age range of the user based on the diameter or radius of the iris in the iris parameters of the iris pattern.
- the embodiment of the present invention may also collect user local information of the subject, for example, requesting the identity information of the subject of the subject, or
- the terminal can collect its user information from the inside of the terminal, and then based on the collected identity information.
- the type of user of the subject is judged.
- the user local information includes user attribute parameters such as user age information and gender information.
- the replacement pattern of the iris pattern in the embodiment of the present invention includes an indication capable of indicating the user's eyes.
- the pattern of the ball position is such that the user can move based on the pattern, and the user's iris pattern can be further displayed at a suitable position in the image preview area.
- the position of the replacement pattern of the iris pattern in the infrared image in the non-infrared image is determined by the position of the iris pattern in the infrared image
- the subject is The position of the infrared lens in the image acquisition area changes, so that the position of the replacement pattern of the iris pattern in the non-infrared image moves with the object to be photographed, so that the subject can complete the eye alignment, thereby ensuring the image preview.
- the infrared iris pattern does not appear in the area, the user can also complete the process of iris registration and recognition, and reduce the user's resistance.
- the replacement pattern b1 of the iris pattern a1 in the infrared image a is positioned in the non-infrared image b, and the iris pattern a1 is in the infrared
- the position in image a is the same.
- the non-infrared image (for example, the background image or the replacement pattern of the iris pattern) in the embodiment of the present invention corresponds to at least one user type, for example, the non-infrared image can be identified by the image of the non-infrared image and the user type.
- the mapping relationship between the identifiers is used to express the correspondence between the two, wherein the image of the non-infrared image is an image name of the non-infrared image or other identifier that can uniquely represent the non-infrared image.
- the replacement pattern of the iris pattern in the embodiment of the present invention may be a pre-stored non-infrared image (for example, a cartoon pattern or other warm tone pattern) or a non-infrared iris pattern collected by the non-infrared lens when the infrared lens captures the infrared image.
- the non-infrared image including the iris pattern in the embodiment of the present invention includes a background image of the image preview area and a replacement pattern of the iris pattern, wherein the background image and the replacement pattern are both non-infrared images.
- step 103 can be specifically performed according to the following steps:
- the embodiment of the present invention may pre-store a plurality of background images and replacement patterns of non-infrared images in a local database, and correspondingly, each database image and replacement pattern are also stored in the database.
- Image parameter, the image parameter The number includes the image identifier of the image, and the user type identifier to which the image belongs (for example, if the picture is a cartoon, since the picture can be configured for all user types, the user type identifier of the image belongs to multiple at this time) And basic attribute information of the image (for example, image size, image format, etc.).
- the local database also stores an index of the correspondence between the image identifier of each background image and the replacement pattern and the identifier of the corresponding user type.
- the device may directly retrieve an index of the user type identifier including the subject in the database, and determine an image of the background image and the replacement pattern corresponding to the user type identifier of the subject based on the index. Identifying, thereby acquiring a corresponding background image and replacement pattern based on the image identifier of the background image and the replacement pattern.
- step 103a the embodiment further includes the following steps:
- A1 It is determined whether a background image and a replacement pattern corresponding to the user type of the subject are stored in the database.
- the index corresponding to the user type of the subject is directly retrieved from the database, and Searching for a background image and a replacement pattern corresponding to the user type of the subject based on the index; if it is determined that the background image and the replacement pattern corresponding to the user type of the subject are not stored in the database, the network image and the replacement pattern may be stored in the network.
- a non-infrared image that the user type of the subject may like is captured as a background image and an alternative pattern of the iris pattern.
- the user type of the subject and the captured image may be taken.
- the background image and the replacement pattern matched by the user type of the object are correspondingly stored in the database, and an index of the user type of the subject and the correspondence between the background image and the replacement pattern matching the user type of the subject is created.
- step 104 specifically includes the following steps:
- the position of the iris pattern in the infrared image may be the coordinates of the center point of the iris pattern in the infrared image; the coordinates of at least one edge point (preferably a plurality) of the iris pattern in the infrared image.
- the display when the control replacement pattern is displayed in the position to be displayed, the display may be directly superimposed on the background image, that is, a technique in which one image is suspended on another image; or the replacement pattern may be used instead of the corresponding image in the background image.
- the portion of the position is displayed, and the replaced background image is displayed, that is, the replacement image is used to replace the portion of the background image corresponding to the position to be displayed, and the replacement pattern and the background image are combined into a new image, and the new image is displayed.
- the replacement pattern and the background image are combined to form an image, and the combined image is directly displayed in the preview area. limit.
- step 104b the method further includes:
- C1 Obtain a first ratio, the first ratio being a ratio of an area of the iris pattern to an area of the infrared image.
- C2. Determine a size of the replacement pattern of the iris pattern according to the first ratio, such that a ratio of an area of the replacement pattern of the iris pattern to an area of the background image is a first ratio.
- step 104b may be specifically implemented by displaying the replacement pattern of the iris pattern at the position to be displayed and the upper layer of the background image according to the size of the replacement pattern of the determined iris pattern. In this way, the user can see the size of the iris pattern through the screen, thereby perceiving the distance from the screen of the terminal device to adjust the distance between the terminal device and the object to be photographed.
- the background image has a positioning identifier
- the position of the positioning identifier in the background image is a position where the iris recognition program expects the iris
- the positioning identifier may be a specific pattern, such as a black dot, or The same pattern as the replacement pattern shape, and the like. From the perspective of the user's viewing, the replacement pattern of the iris pattern will gradually move toward the positioning mark under the user's eyeball alignment operation, so that after the above-mentioned eyeball pair By quasi-operation, an infrared image with clearer iris features can be obtained.
- the terminal device may be further unlocked, some applications in the terminal device may be activated, or a certain function (such as payment) of some applications in the terminal device may be activated.
- the replacement pattern of the infrared eyeball image is displayed at the position of the indication image by adjusting the user's distance and up, down, left, and right orientations, which is equivalent to the iris pattern.
- Arthur eyes are in the right position.
- the background image of the image preview area is a cartoon image (here, only an example, where the size, shape, and pattern of the image are not limited), two circles are missing, and the infrared eyeball image is replaced.
- the pattern is the same as the two circles corresponding to the image, and the user can adjust the distance and position of the iris pattern until the replacement pattern of the iris pattern is displayed in the two circles missing from the cartoon image, or, as shown in FIG. 4b,
- the background image of the image preview area is a two-star icon displayed in a non-infrared image (here is only an example, where the size, shape and pattern of the image are not limited), the user can adjust his or her proximity and position until The replacement pattern of the iris pattern is displayed to the position of the star icon, and in order to facilitate the alignment of the eyeball, the replacement pattern of the infrared iris pattern may be further set to the star icon pattern.
- the cartoon puzzle method is mainly used to guide the user's eyes to the most ideal recognition position.
- the solution provided by the embodiment of the present invention may further include a background image setting option and a replacement pattern setting option in the image setting interface of the client, and the solution further includes the following steps:
- D2. Acquire a first user instruction, and set a selected background image as a background image of the image preview area according to the instruction of the first user instruction, where the first user instruction is generated when the user clicks the background image setting option;
- the second user instruction is obtained, and the selected replacement pattern is set as the replacement pattern of the iris pattern according to the instruction of the second user instruction, and the second user instruction is generated when the user clicks the replacement pattern setting option.
- the background image may be directly obtained in the directory for display; or, after the user opens the image configuration interface, enter the replacement pattern setting option in the image configuration interface, and select After the replacement pattern needs to be configured, select “Save”, save the replacement pattern to the specified directory, and then perform the process of image previewing, such as iris registration or recognition, and obtain the replacement pattern as an iris pattern in the directory. In the image preview area.
- the selected background image may be a background image that matches the user type of the object acquired in step 103, or may be a background image selected by the user from the database according to his or her preference;
- the selected replacement image may be a replacement image that is acquired in step 103 that matches the user type of the subject, or may be a replacement image that the user selects from the database according to his or her own preference.
- the solution provided by the embodiment of the present invention does not require light
- the solution provided by the embodiment of the present invention can be used when the light is sufficient or insufficient.
- the solution acquires the real-time position of the human eye through the eyeball capture technology (through the infrared image), and then does not display the real-time infrared preview image on the image preview area of the screen, but displays the non-infrared image including the infrared iris pattern.
- the iris can be completed while avoiding the subject viewing the infrared image containing the iris pattern.
- the eyeball alignment process in the registration or identification process because it is no longer necessary to face the self-timer image under infrared light, avoiding the user's resistance and greatly improving the user experience.
- the solution provided by the embodiment of the present invention is mainly introduced from the image preview device based on the iris recognition and the terminal applied by the device. It can be understood that the device includes corresponding hardware structures and/or software modules for performing various functions in order to implement the above functions.
- the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
- the embodiment of the present invention may divide the function module of the image preview device based on the iris recognition according to the above method example.
- each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
- the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.
- FIG. 5 is a schematic diagram showing a possible structure of an iris recognition-based image preview device according to the above embodiment.
- the image recognition device 3 based on the iris recognition includes: The acquisition module 31, the determination module 32, the control module 33, the storage module 34, and the processing module 35 are obtained.
- the obtaining module 31 is configured to support the iris recognition-based image preview device to perform steps 101 and 103 in FIG. 1
- the determining module 32 is configured to support the iris recognition-based image preview device to perform step 102 in FIG. 1
- the control module 33 is configured to support The iris recognition based image preview device performs step 104 in FIG.
- the storage module 34 is configured to support iris recognition based images
- the preview device implements a process of pre-storing a plurality of background images and replacement patterns in a database and establishing an index including a correspondence between user types and the background images and replacement patterns; further, the acquisition module 31 is specifically configured to support images based on iris recognition.
- the preview device performs step 103a in FIG. 3, and the control module 32 is configured to support the iris recognition-based image preview device to perform steps 104a, 104b in FIG. 3. Further, the acquisition module 31 is further configured to support image recognition based on iris recognition.
- the device implements the above step C1, the determining module 32 is further configured to support the iris recognition based image preview device to implement the above step C2; further, the obtaining module 31 is further configured to support the iris recognition based image preview device to implement the above In step D2, the processing module 35 is configured to support the iris recognition-based image preview device to implement steps D1 and D2 above. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.
- the obtaining module 31, the determining module 32, and the control module 33 may be processors.
- the above-mentioned storage module 34 may be a memory, and the programs corresponding to the actions performed by the iris recognition-based image preview device may be stored in software in the memory of the iris recognition-based image preview device, so that the processor calls the execution of the above. The corresponding operation of each module.
- FIG. 6 shows a possible structural diagram of the iris recognition-based image preview device involved in the above embodiment.
- the iris recognition based image preview device 4 includes a processor 41, a memory 42, a system bus 43, and a communication interface 44.
- the memory 42 is used to store computer execution code
- the processor 41 is connected to the memory 42 through the system bus 43.
- the processor 41 is configured to execute the computer execution code stored in the memory 42 to execute any one of the embodiments provided by the embodiments of the present invention.
- An image recognition method based on iris recognition such as processor 41 for supporting an iris recognition based image preview device to perform all of the steps in FIGS. 1 and 3, and/or other processes for the techniques described herein,
- the image preview method based on the iris recognition can refer to the related descriptions in the following and the drawings, and details are not described herein again.
- the embodiment of the invention further provides a storage medium, which may include a memory 42.
- the embodiment of the invention further provides a computer program, which can be directly loaded into the memory 42 and contains software code, and the image program previewing method based on the iris recognition can be implemented after the computer program is loaded and executed by the computer.
- the processor 41 may be a processor or a collective name of a plurality of processing elements.
- the processor 41 can be a central processing unit (CPU).
- the processor 41 can also be another general-purpose processor, a digital signal processing (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or Other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like, can implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the present disclosure.
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the processor 41 may also be a dedicated processor, which may include at least one of a baseband processing chip, a radio frequency processing chip, and the like.
- the processor 41 can also be a combination of computing functions, including, for example, one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. Further, the dedicated processor may also include a chip having other specialized processing functions of the device.
- the steps of the method described in connection with the present disclosure may be implemented in a hardware manner, or may be implemented by a processor executing software instructions.
- the software instructions may be composed of corresponding software modules, which may be stored in random access memory (English: random access memory, abbreviation: RAM), flash memory, read only memory (English: read only memory, abbreviation: ROM), Erase programmable read-only memory (English: erasable programmable ROM, abbreviation: EPROM), electrically erasable programmable read-only memory (English: electrical EPROM, abbreviation: EEPROM), registers, hard disk, mobile hard disk, CD-ROM (CD) - ROM) or any other form of storage medium known in the art.
- RAM random access memory
- ROM read only memory
- EPROM Erase programmable read-only memory
- EPROM electrically erasable programmable read-only memory
- registers hard disk, mobile hard disk, CD-ROM (CD) - ROM) or any other form of storage
- An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
- the storage medium can also be an integral part of the processor.
- the processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in the terminal device.
- the processor and the storage medium can also exist as discrete components in the terminal device.
- System bus 43 may include a data bus, a power bus, a control bus, and a signal status bus. For the sake of clarity in the present embodiment, various buses are illustrated as the system bus 43 in FIG.
- Communication interface 44 may specifically be a transceiver on the device.
- the transceiver can be a wireless transceiver.
- the wireless transceiver can be an antenna or the like of the device.
- the processor 41 communicates with other devices through the communication interface 44, for example, if the device is a module or component of the terminal device, the device is used for data interaction with other modules in the terminal device, for example, the device Performing data interaction with the display module of the terminal device, and controlling the display module to display the non-infrared image or the infrared image in the image preview area.
- FIG. 7 shows a possible structural diagram of the image recognition device based on the iris recognition involved in the above embodiment.
- the device includes a processor 51, a memory 52, a system bus 53, a communication interface 54, an infrared lens 55, and a display unit 56, wherein the processor 51 is connected to the infrared lens 55 (for example, can be connected through a bus) to obtain The infrared image captured by the infrared lens 55 is subjected to image processing.
- the processor 51 is further connected to the display unit 56 for controlling the display unit 56 to display an image.
- the display unit 56 can be used to display information input by the user or information provided to the user as well as various menus of the terminal.
- the display unit 56 may include a display panel.
- the display panel may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like.
- the touch screen may cover the display panel, and when the touch screen detects a touch operation on or near it, the touch screen is transmitted to the processor 51 to determine the type of the touch event, and then the processor 51 provides corresponding on the display panel according to the type of the touch event. Visual output.
- the embodiment of the invention further provides a robot, which comprises the image recognition device based on iris recognition corresponding to FIGS. 6 and 7.
- the functions described herein can be implemented in hardware, software, firmware, or any combination thereof.
- the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
- Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
- a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.
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Abstract
提供一种基于虹膜识别的图像预览方法及装置,涉及虹膜识别领域,用以解决现有技术在进行虹膜注册或识别等需要进行图像预览的过程中,预览界面实时显示的虹膜图案为虹膜摄像头拍摄到的眼球黑白生理图像的问题。该方法包括:获取由红外镜头采集的红外图像;在红外图像中包含虹膜图案的情况下,根据虹膜图案的虹膜参数确定被拍摄对象的用户类型;获取与被拍摄对象的用户类型相匹配的非红外图像,该非红外图像包含虹膜图案的替换图案的,该替换图案在非红外图像中的位置由虹膜图案在红外图像中的位置决定;将该非红外图像在图像预览区域内显示。
Description
本发明涉及虹膜识别技术领域,尤其涉及一种基于虹膜识别的图像预览方法及装置。
目前随着大家对身份认证的安全性和实用性的重视程度逐渐提高,越来越多的电子设备(尤其是便携式电子设备)均开始配备虹膜识别功能。虹膜识别技术是基于眼睛中的虹膜进行身份识别,而虹膜是位于黑色瞳孔和白色巩膜之间的圆环状部分,由于每个人的虹膜在胎儿发育阶段形成后便不会发生变化,且虹膜中包含有很多相互交错的斑点、细丝、冠状、条纹、隐窝等的细节特征,因此,每个人的虹膜具备唯一性,也就决定了采用虹膜识别技术进行身份识别的唯一性。
现有的虹膜识别技术在硬件上需要额外的一颗红外摄像头(也可以和普通前向摄像头二合一,但从光路和技术上来说依然相当于两颗,只是物理结构上的合并)和一颗红外补光灯(用红外光照亮面部和眼部),然后通过该红外摄像头采集用户的眼球图像,将拍摄到的眼球图像用算法处理成模板进行保存或比对。然而,在虹膜注册或识别等需要进行图像预览的过程中,由于虹膜摄像头拍摄到的眼球图像为眼球的黑白生理图像,从而使得用户产生不适感。
发明内容
本发明的实施例提供一种基于虹膜识别的图像预览方法及装置,用以解决现有技术在进行虹膜注册或识别等需要进行图像预览的过程中,预览界面实时显示的虹膜图案为虹膜摄像头拍摄到的眼球黑白生理图像的问题。
为达到上述目的,本发明的实施例采用如下技术方案:
第一方面,提供一种基于虹膜识别的图像预览方法,包括:
获取由红外镜头采集的红外图像;
在所述红外图像中包含虹膜图案的情况下,根据所述虹膜图案的虹膜参数确定被拍摄对象的用户类型;
获取与所述被拍摄对象的用户类型相匹配的非红外图像,所述非红外图像包含所述虹膜图案的替换图案,所述替换图案在所述非红外图像中的位置由所述虹膜图案在所述红外图像中的位置决定;
将所述非红外图像在所述图像预览区域内显示。
第二方面,提供一种基于虹膜识别的图像预览装置,包括:
获取模块,用于获取由红外镜头采集的红外图像;
确定模块,用于在所述获取模块获取的红外图像中包含虹膜图案的情况下,根据所述虹膜图案的虹膜参数确定被拍摄对象的用户类型;
所述获取模块,还用于获取与所述被拍摄对象的用户类型相匹配的非红外图像,所述非红外图像包含所述虹膜图案的替换图案,所述替换图案在所述非红外图像中的位置由所述虹膜图案在所述红外图像中的位置决定;
控制模块,用于将所述获取模块获取的所述非红外图像在所述图像预览区域内显示。
第三方面,提供一种基于虹膜识别的图像预览装置,该装置的结构中包括处理器,该处理器被配置为支持该装置执行上述方法中相应的功能。该装置还可以包括存储器,该存储器用于与处理器耦合,其储存上述基于虹膜识别的图像预览装置所用的计算机软件代码,其包含用于执行上述方面所设计的程序。
第四方面,提供一种计算机存储介质,用于储存为基于虹膜识别的图像预览装置所用的计算机软件指令,其包含执行上述方面所述基于虹膜识别的图像预览方法所设计的程序代码。
第五方面,提供一种计算机程序,可直接加载到计算机的内部存储器中,并含有软件代码,该计算机程序经由计算机载入并执行后能够实现上述方面所述的基于虹膜识别的图像预览方法。
第六方面,提供一种机器人,该机器人包括第三方面所述的基于虹膜识别的图像预览装置。
本发明提供的方案在确定由红外镜头采集的红外图像中包含虹膜图案的情况下,根据该虹膜图案的虹膜参数确定出被拍摄对象的用户类型,然后基于该用户类型获取与该被拍摄对象的用户类型相匹配的非红外图像,该非红外图像包含该虹膜图案的替换图案,然后,将该非红外图像显示在该图像预览区域中,由于该非红外图像时基于用户类型所选择出的能够满足用户个性化需求的更加美观的图像,从而避免被拍摄对象观看到包含虹膜图案的红外图像。同时,由于该虹膜图案的替换图案在该非红外图像中的位置由该虹膜图案在红外图像中的位置决定,也即在一时间段内,替换图案在非红外图像中的位置会随着虹膜图案在红外图像中的位置的移动而移动;使得用户能够通过观看预览区域的非红外图像中替换图案的位置,实时调整被拍摄者的眼球(也可说是人脸)、或者调整红外镜头的拍摄方向,以完成眼球对正,进而使得红外镜头能够采集到在虹膜注册、识别、解锁等过程中需使用的红外图像。因此,该方案在保证用户正常完成虹膜注册、识别、解锁等需求的前提下,减少用户在预览过程中对于红外虹膜图案的抵触情绪。
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种基于虹膜识别的图像预览方法的方法流程图;
图2a为本发明实施例提供的一种包含虹膜图案的替换图案的非红外图像在图像预览区域内显示的示意图;
图2b为本发明实施例提供的另一种包含虹膜图案的替换图案
的非红外图像在图像预览区域内显示的示意图;
图3为本发明实施例提供的另一种基于虹膜识别的图像预览方法的方法流程图;
图4a为本发明实施例提供的一种通过拼图方式在图像预览区域内显示非红外图像的示意图;
图4b为本发明实施例提供的一种通过眼球捕获技术在图像预览区域内显示非红外图像的示意图;
图5为本发明实施例提供的一种基于虹膜识别的图像预览装置的结构示意图;
图6为本发明实施例提供的另一种基于虹膜识别的图像预览装置的结构示意图;
图7为本发明实施例提供的又一种基于虹膜识别的图像预览装置的结构示意图。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
下面对本申请中所涉及的部分术语进行解释,以方便读者理解:
“虹膜”,为位于眼睛的黑色瞳孔和白色巩膜之间呈织物状各色圆环状部分,具有丰富且不同的纹理图案,人的虹膜直径一般在11毫米到12毫米之间,且每个人的虹膜在胎儿发育阶段形成后便不会发生变化,虹膜中包含有很多相互交错的像冠、水晶体、细丝、斑点、结构、隐窝、射线、皱纹和条纹等的细节特征,这些细节特征决定了虹膜特征的唯一性,同时也决定了身份识别的唯一性。
“虹膜识别”,是基于眼睛中的虹膜进行身份识别,通常需要四个步骤,分为虹膜图案获取、图像预处理、虹膜特征提取以及特征保存(注册时)或特征匹配(识别时),主要应用于安防设备(如门
禁等)以及有高度保密需求的场所。其中,虹膜图案获取是指使用红外镜头对人的整个眼部进行拍摄得到红外虹膜图案;图像预处理是指对拍摄到的虹膜图案进行包括图像平滑、边缘检测、图像分离等预处理操作;虹膜特征提取是指通过特定算法从虹膜图案中提取出虹膜的独特细节特征点,并对其进行编码;特征匹配是指根据提取出的虹膜细节特征的特征编码与数据库中事先存储的虹膜图案的虹膜细节特征的特征编码进行比对、验证,从而达到识别的目的。
“红外镜头”,为红外摄像头,通常与红外光发生器(例如,红外补光灯)成对出现,红外光发生器用于产生红外光来照亮被拍摄对象的面部和眼部,再经红外镜头对经红外光照射的被拍摄对象的面部和眼部进行拍摄,从而得到包含被拍摄对象的眼球图像的红外图像,通常为黑白或偏绿色图像。
“非红外镜头”,为除红外摄像头以外的其他镜头,例如,智能手机中的普通前置摄像头,本发明对此不作限定。
本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。如果不加说明,本文中的“多个”是指两个或两个以上。
需要说明的是,本发明实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本发明实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
需要说明的是,本发明实施例中,除非另有说明,“多个”的含义是指两个或两个以上。
需要说明的是,本发明实施例中,“的(英文:of)”,“相应的(英文:corresponding,relevant)”和“对应的(英文:corresponding)”有时可以混用,应当指出的是,在不强调其区别时,其所要表达的含
义是一致的。
下面将结合本发明实施例的说明书附图,对本发明实施例提供的技术方案进行说明。显然,所描述的是本发明的一部分实施例,而不是全部的实施例。需要说明的是,下文所提供的任意多个技术方案中的部分或全部技术特征在不冲突的情况下,可以结合使用,形成新的技术方案。
本发明实施例所提供的技术方案的基本原理为:在进行虹膜注册或识别等需要进行图像预览的过程中,若红外镜头采集到的红外图像包含虹膜图案,则基于该虹膜图案的虹膜参数确定出被拍摄对象的用户类型,然后为该虹膜图案选择一个与该用户类型相匹配的包含虹膜图案的替换图案的非红外图像,并按照该虹膜图案在该红外图像中的位置,将该非红外图像显示在该图像预览区域中,从而避免被拍摄对象观看到包含虹膜图案的红外图像。
本发明实施例提供的基于虹膜识别的图像预览方法的执行主体可以为基于虹膜识别的图像预览装置或者可以用于执行上述基于虹膜识别的图像预览方法的终端设备。其中,基于虹膜识别的图像预览装置可以为上述终端设备中的中央处理器(Central Processing Unit,CPU)、CPU与存储器等硬件的组合、或者可以为上述终端设备中的其他控制单元或者模块。
示例性的,上述终端设备可以为采用本发明实施例提供的方法对红外镜头采集的红外图像进行分析的个人计算机((personal computer,PC)、上网本、个人数字助理(英文:Personal Digital Assistant,简称:PDA)、服务器等,或者上述终端设备可以为安装有可以采用本发明实施例提供的方法对红外镜头采集红外图像进行处理的软件客户端或软件***或软件应用的PC、服务器等,具体的硬件实现环境可以通用计算机形式,或者是ASIC的方式,也可以是FPGA,或者是一些可编程的扩展平台例如Tensilica的Xtensa平台等等。
基于上述内容,本发明的实施例提供一种基于虹膜识别的图像
预览方法,如图1所示,该方法包括如下步骤:
101、获取由红外镜头采集的红外图像。
示例性的,在开启终端设备中基于虹膜识别的应用后,该应用可以控制打开红外镜头、进一步的可控制打开红外补光灯,此时,红外镜头便可针对被拍摄对象实时采集红外图像。
102、在红外图像中包含虹膜图案的情况下,根据虹膜图案的虹膜参数确定被拍摄对象的用户类型。
本发明实施例中的红外图像的虹膜图案为该红外图像的部分图像,该部分图像中包含虹膜图案或眼球图案。
本发明实施例中的虹膜图案的虹膜参数包括但不限于:虹膜的直径或半径、虹膜颜色、虹膜特征信息等。本发明实施例中所出现的每种用户类型都有相应的用户类型标识与其对应。本发明实施例中用户类型的划分则可以按照年龄(例如,儿童、成人、老人)进行划分,也可以按照用户性别(例如,女性、男性)进行划分,这里不做限定,在实际应用中可以按照具体的需求按需进行划分,本发明对此不作限定。
示例性的,由于不同年龄段的用户的虹膜大小并不相同,因此,本发明实施例可以基于虹膜图案的虹膜参数中虹膜的直径或半径来确定用户的年龄段。同时,本发明实施例在根据虹膜图案的虹膜参数确定被拍摄对象的用户类型时,还可以收集被拍摄对象的用户本地信息,例如,向被拍摄对象的随身终端请求其身份信息,或者,若执行本发明实施例提供的方案的基于虹膜识别的图像预览装置本身便是该被拍摄用户的随身终端时,该终端可以自行从终端内部收集其用户信息,然后便可基于采集到的身份信息对被拍摄对象的用户类型进行判定。其中,上述的用户本地信息包括:用户年龄信息、性别信息等用户属性参数。
103、获取与被拍摄对象的用户类型相匹配的非红外图像,该非红外图像包含虹膜图案的替换图案。
本发明实施例中的虹膜图案的替换图案中包含能够指示用户眼
球位置的图案,从而方便用户基于该图案进行移动,进一步的可将用户的虹膜图案显示在该图像预览区域的合适位置。
在本实施例中,由于红外图像中的虹膜图案的替换图案在该非红外图像中的位置由该虹膜图案在红外图像中的位置决定,因此,当被拍摄对象移动时,由于被拍摄对象在红外镜头的图像采集区域内的位置发生变化,而使得虹膜图案的替换图案在非红外图像中的位置随着被拍摄对象而移动,从而使得被拍摄对象能够完成眼球对正,进而在保证图像预览区域内不出现红外虹膜图案的同时,还可以保证用户完成虹膜注册和识别的过程,减少用户的抵触情绪。
参考图2a、图2b所示的虹膜图案的替换图案在非红外图像中的位置示意图,红外图像a中的虹膜图案a1的替换图案b1在非红外图像b中位置,与该虹膜图案a1在红外图像a中的位置相同。
本发明实施例中的非红外图像(如,下文中的背景图像或虹膜图案的替换图案)对应至少一种用户类型,例如,该非红外图像可以用该非红外图像的图像标识与用户类型的标识间的映射关系,来表现两者间的对应关系,其中,非红外图像的图像标识为该非红外图像的图像名称或其他可唯一表示该非红外图像的标识。
示例性的,本发明实施例中虹膜图案的替换图案可以为预存的非红外图像(例如,卡通图案或其他暖色调图案)或非红外镜头在红外镜头采集红外图像时采集的非红外虹膜图案。
示例性的,本发明实施例中的包含虹膜图案的非红外图像包括图像预览区域的背景图像和该虹膜图案的替换图案,其中,上述的背景图像和替换图案均为非红外图像。
基于此,如图3所示,步骤103具体可以按照下述步骤来执行:
103a、获取与被拍摄对象的用户类型相匹配的图像预览区域的背景图像以及虹膜图案的替换图案。
示例性的,在执行步骤102之前,本发明实施例可以在本地数据库中预存多幅为非红外图像的背景图像和替换图案,对应的,该数据库中还存储有每幅背景图像和替换图案的图像参数,该图像参
数包括该图像的图像标识、该图像所属的用户类型标识(例如,若该图片为卡通时,由于该图片可以为所有用户类型进行配置,此时,该图像所属的用户类型标识为多个)以及该图像的基本属性信息(例如,图像大小、图像格式等)。需要说明的是,该本地数据库中还存储有每幅背景图像和替换图案的图像标识与对应用户类型的标识间的对应关系索引。这样在步骤102中,该装置可以直接在数据库中检索包含该被拍摄对象的用户类型标识的索引,并基于该索引确定出与该被拍摄对象的用户类型标识对应的背景图像和替换图案的图像标识,从而基于该背景图像和替换图案的图像标识获取到对应的背景图像和替换图案。
基于此,本实施例在实现步骤103a之前,还包括如下步骤:
A1、判定数据库中是否存储该被拍摄对象的用户类型对应的背景图像和替换图案。
具体的,若执行步骤A1后,若判定该数据库中已存储该被拍摄对象的用户类型对应的背景图像和替换图案,则直接从该数据库中检索该被拍摄对象的用户类型对应的索引,并基于该索引查找到与该被拍摄对象的用户类型存在对应关系的背景图像和替换图案;若判定该数据库中未存储该被拍摄对象的用户类型对应的背景图像和替换图案,则可以从网络中抓取该拍摄对象的用户类型可能喜欢的非红外图像,作为背景图像和该虹膜图案的替换图案。
进一步的,若判定该数据库未存储该被拍摄对象的用户类型对应的背景图像和替换图案,则在执行步骤103a之后,为了方便后续使用,可以将该被拍摄对象的用户类型和与该被拍摄对象的用户类型相匹配的背景图像和替换图案对应存储至数据库中,并创建被拍摄对象的用户类型和与该被拍摄对象的用户类型相匹配的背景图像和替换图案间对应关系的索引。
104、控制非红外图像在图像预览区域内显示。
示例的,如图3所示,基于上述的步骤103a,步骤104具体包括如下步骤:
104a、获取虹膜图案在红外图像中的位置,作为虹膜图案的替换图案在图像预览区域中的待显示位置。示例的,虹膜图案在红外图像中的位置,可以是虹膜图案的中心点在红外图像中的坐标;虹膜图案的至少一个边缘点(最好是多个)在红外图像中的坐标。
104b、将背景图像显示在图像预览区域中,并将替换图案在待显示位置、于背景图像的上层显示。
本实施例在控制替换图案在待显示位置显示时,既可以直接在背景图像上直接叠加显示,即采用一图像在另一个图像上悬浮显示的技术;也可以利用替换图案替代背景图像中对应待显示位置的部分,并显示替代后的背景图像,即利用替换图案替代背景图像中对应待显示位置的部分,将替换图案和背景图像合成新的图像,再显示该新的图像即可。当然,本实施例也可以在显示背景图像与该替换图案之前,将该替换图案与该背景图像进行组合形成一幅图像后,将组合后的图像直接显示在该预览区域内,这里并不做限制。
进一步的,在步骤104b之前,该方法还包括:
C1、获取第一比值,该第一比值为虹膜图案的面积与红外图像的面积的比值。
C2、根据该第一比值确定虹膜图案的替换图案的大小,使虹膜图案的替换图案的面积与背景图像的面积的比值为第一比值。
基于步骤C2,步骤104b具体可以通过下述过程实现:将虹膜图案的替换图案按照确定出的虹膜图案的替换图案的大小在待显示位置、于背景图像的上层显示。这样,用户可以通过屏幕看出虹膜图案的大小,从而感知到与终端设备屏幕的远近,以调整终端设备与被拍摄对象之间的距离。
示例性的,该背景图像中具有定位标识,上述的定位标识在背景图像中的位置为虹膜识别程序期望虹膜所在的位置,该定位标识可以是某一个特定的图案,例如可以是黑点、或与替换图案形状相同的图案等。从用户观看的角度,虹膜图案的替换图案会在用户的眼球对准操作下,逐渐向该定位标识移动,这样经过上述的眼球对
准操作,便可获取到虹膜细节特征更为清晰的红外图像,然后,从该红外图像中提取出虹膜细节特征,并对该虹膜细节特征进行保存以完成注册,或者用该虹膜细节特征进行特征比对以完成识别过程。进一步的,当识别结果为匹配成功时,则可以进一步控制终端设备的解锁、启动终端设备中某些应用,或启动终端设备中某些应用的某特定功能(例如支付)等。
示例性的,当该背景图像显示在该图像预览区域后,便可通过调整用户的远近和上下左右方位,将红外眼球图像的替换图案显示在该指示图像所在位置,也就相当于在虹膜图案中将眼睛对到正确位置。例如,参照图4a所示,图像预览区域的背景图像为一个卡通图像(这里仅作示例,这里对图像的大小、形状、图案不做限定)中少了两个圆,而红外眼球图像的替换图案与这两个圆对应图像相同,用户可以通过调整自身的远近及位置,直到将该虹膜图案的替换图案显示至该卡通图像所缺失的这两个圆中,或者,参照图4b所示,图像预览区域的背景图像为一张非红外图像中显示有两个星星图标(这里仅作示例,这里对图像的大小、形状、图案不做限定),用户可以通过调整自身的远近及位置,直到将该虹膜图案的替换图案显示至该星星图标所在位置,为了方便进行眼球对正,进一步的可以将该红外虹膜图案的替换图案设置成该星星图标图案。
当然,因虹膜识别过程对远近距离和上下左右方位有一定的包容度,有可能在完全对正之前就已经完成了虹膜认证。卡通拼图方式主要用于引导用户的眼睛到达最理想的识别位置。
当然,除了上述的拼图或对准方式,还可以有很多不同的呈现方式,其本质是通过眼球捕获技术得到眼球的实时位置,并引导用户将眼睛的位置移动到虹膜程序期望的位置区域。
可选的,本发明实施例提供的方案还可以在客户端的图像设置界面中增加背景图像设置选项以及替换图案设置选项,基于此,该方案还包括如下步骤:
D1、打开图像配置界面,该图像配置界面包括背景图像设置选
项和替换图案设置选项。
D2、获取第一用户指令,根据该第一用户指令的指示将选定的背景图像设置为所述图像预览区域的背景图像,该第一用户指令是用户点击该背景图像设置选项时生成的;或者,获取第二用户指令,根据该第二用户指令的指示将选定的替换图案设置为该虹膜图案的替换图案,该第二用户指令是用户点击该替换图案设置选项时生成的。
示例性的,用户打开图像配置界面后,进入该图像配置界面中的背景图片设置选项,选择好需要配置的背景图片后,选择“保存”,将该选定的背景图片保存到指定目录,后续在进行虹膜注册或识别等需要进行图像预览的过程,可以直接到该目录下获取该背景图片进行显示;或者,用户打开图像配置界面后,进入该图像配置界面中的替换图案设置选项,选择好需要配置的替换图案后,选择“保存”,将该替换图案保存到指定目录,后续在进行虹膜注册或识别等需要进行图像预览的过程,可以到该目录下获取该替换图案作为虹膜图案显示在图像预览区域内。
示例性的,上述的选定的背景图像可以为步骤103中所获取的与被拍摄对象的用户类型相匹配的背景图像,也可以是用户按照自己的喜好自行从数据库中选择的背景图像;上述的选定的替换图像可以为步骤103中所获取的与被拍摄对象的用户类型相匹配的替换图像,也可以是用户按照自己的喜好自行从数据库中选择的替换图像。
需要说明的是,由于本发明实施例提供的方案对应光线并无要求,因此本发明实施例所提供的方案在光线充足或者不充足时都可使用。
由此可见,本方案通过眼球捕获技术(通过红外图像)获取人眼的实时位置,然后在屏幕的图像预览区域上不显示实时的红外预览图像,而是显示包含红外虹膜图案的非红外图像,从而在避免被拍摄对象观看到包含虹膜图案的红外图像的同时,还可以完成虹膜
注册或识别过程中的眼球对正过程,因为不必再面对红外光下的自拍图像,避免了用户的抵触情绪,使用户体验得到较大提升。
上述主要从基于虹膜识别的图像预览装置、以及该装置所应用的终端角度对本发明实施例提供的方案进行了介绍。可以理解的是,该装置为了实现上述功能,其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,本发明能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
本发明实施例可以根据上述方法示例对基于虹膜识别的图像预览装置进行功能模块的划分,例如,可以对应各个功能划分各个功能模块,也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。需要说明的是,本发明实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。
下面说明本发明实施例提供的与上文所提供的方法实施例相对应的装置实施例。需要说明的是,下述装置实施例中相关内容的解释,均可以参考上述方法实施例。
在采用对应各个功能划分各个功能模块的情况下,图5示出了上述实施例中所涉及的基于虹膜识别的图像预览装置的一种可能的结构示意图,基于虹膜识别的图像预览装置3包括:获取模块31、确定模块32、控制模块33、存储模块34、处理模块35。获取模块31用于支持基于虹膜识别的图像预览装置执行图1中的步骤101、103,确定模块32用于支持基于虹膜识别的图像预览装置执行图1中的步骤102,控制模块33用于支持基于虹膜识别的图像预览装置执行图1中的步骤104;存储模块34用于支持基于虹膜识别的图像
预览装置实现在数据库中预先存储多幅背景图像和替换图案以及建立包含用户类型与这些背景图像和替换图案间对应关系的索引的过程;进一步的,获取模块31具体用于支持基于虹膜识别的图像预览装置执行图3中的步骤103a,控制模块32用于支持基于虹膜识别的图像预览装置执行图3中的步骤104a、104b,更进一步的,获取模块31还用于支持基于虹膜识别的图像预览装置实现上文中的步骤C1,确定模块32还用于支持基于虹膜识别的图像预览装置实现上文中的步骤C2;进一步的,获取模块31还用于支持基于虹膜识别的图像预览装置实现上文中的步骤D2,处理模块35用于支持基于虹膜识别的图像预览装置实现上文中的步骤D1和D2。其中,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。
在硬件实现上,上述的获取模块31、确定模块32、控制模块33可以是处理器。上述的存储模块34可以是存储器、上述基于虹膜识别的图像预览装置所执行的动作所对应的程序均可以以软件形式存储于基于虹膜识别的图像预览装置的存储器中,以便于处理器调用执行以上各个模块对应的操作。
在采用集成的单元的情况下,图6示出了上述实施例中所涉及的基于虹膜识别的图像预览装置的一种可能的结构示意图。基于虹膜识别的图像预览装置4包括:处理器41、存储器42、***总线43和通信接口44。存储器42用于存储计算机执行代码,处理器41与存储器42通过***总线43连接,当装置运行时,处理器41用于执行存储器42存储的计算机执行代码,以执行本发明实施例提供的任意一种基于虹膜识别的图像预览方法,如,处理器41用于支持基于虹膜识别的图像预览装置执行图1、3中的全部步骤,和/或用于本文所描述的技术的其它过程,具体的基于虹膜识别的图像预览方法可参考下文及附图中的相关描述,此处不再赘述。
本发明实施例还提供一种存储介质,该存储介质可以包括存储器42。
本发明实施例还提供一种计算机程序,该计算机程序可直接加载到存储器42中,并含有软件代码,该计算机程序经由计算机载入并执行后能够实现上述的基于虹膜识别的图像预览方法。
处理器41可以是一个处理器,也可以是多个处理元件的统称。例如,处理器41可以为中央处理器(central processing unit,CPU)。处理器41也可以为其他通用处理器、数字信号处理器(digital signal processing,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现场可编程门阵列(field-programmable gate array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等,其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框,模块和电路。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。处理器41还可以为专用处理器,该专用处理器可以包括基带处理芯片、射频处理芯片等中的至少一个。所述处理器41也可以是实现计算功能的组合,例如包含一个或多个微处理器组合,DSP和微处理器的组合等等。进一步地,该专用处理器还可以包括具有该装置其他专用处理功能的芯片。
结合本发明公开内容所描述的方法的步骤可以硬件的方式来实现,也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成,软件模块可以被存放于随机存取存储器(英文:random access memory,缩写:RAM)、闪存、只读存储器(英文:read only memory,缩写:ROM)、可擦除可编程只读存储器(英文:erasable programmable ROM,缩写:EPROM)、电可擦可编程只读存储器(英文:electrically EPROM,缩写:EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息。当然,存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外,该ASIC可以位于终端设备中。当然,处理器和存储介质也可以作为分立组件存在于终端设备中。
***总线43可以包括数据总线、电源总线、控制总线和信号状态总线等。本实施例中为了清楚说明,在图6中将各种总线都示意为***总线43。
通信接口44具体可以是该装置上的收发器。该收发器可以为无线收发器。例如,无线收发器可以是该装置的天线等。处理器41通过通信接口44与其他设备,例如,若该装置为该终端设备中的一个模块或组件时,该装置用于与该终端设备中的其他模块之间进行数据交互,如,该装置与该终端设备的显示模块进行数据交互,控制该显示模块将非红外图像或红外图像在图像预览区域内显示。
若上述实施例中所涉及的基于虹膜识别的图像预览装置为终端设备时,图7示出了上述实施例中所涉及的基于虹膜识别的图像预览装置的一种可能的结构示意图。该装置包括:处理器51、存储器52、***总线53、通信接口54、红外镜头55以及显示单元56,其中,上述的处理器51与红外镜头55相连(例如,可以通过总线相连),从而获取由红外镜头55采集的红外图像进行图像处理,同时,上述的处理器51还与显示单元56相连,用于控制显示单元56显示图像。
需要说明的时,本实施例中的处理器51、存储器52、***总线53、通信接口54的介绍,可以参照图7对应实施例中的相关描述,这里不再赘述。
显示单元56可用于显示由用户输入的信息或提供给用户的信息以及终端的各种菜单。显示单元56可包括显示面板,可选的,可以采用LCD(Liquid Crystal Display,液晶显示器)、OLED(Organic Light-Emitting Diode,有机发光二极管)等形式来配置显示面板。进一步的,触摸屏可覆盖显示面板,当触摸屏检测到在其上或附近的触摸操作后,传送给处理器51以确定触摸事件的类型,随后处理器51根据触摸事件的类型在显示面板上提供相应的视觉输出。
本发明实施例还提供一种机器人,该机器人包括图6、7对应的基于虹膜识别的图像预览装置。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本发明所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
最后应说明的是:以上所述的具体实施方式,对本发明的目的、技术方案和有益效果进行了进一步详细说明,所应理解的是,以上所述仅为本发明的具体实施方式而已,并不用于限定本发明的保护范围,凡在本发明的技术方案的基础之上,所做的任何修改、等同替换、改进等,均应包括在本发明的保护范围之内。
Claims (16)
- 一种基于虹膜识别的图像预览方法,其特征在于,包括:获取由红外镜头采集的红外图像;在所述红外图像中包含虹膜图案的情况下,根据所述虹膜图案的虹膜参数确定被拍摄对象的用户类型;获取与所述被拍摄对象的用户类型相匹配的非红外图像,所述非红外图像包含所述虹膜图案的替换图案,所述替换图案在所述非红外图像中的位置由所述虹膜图案在所述红外图像中的位置决定;将所述非红外图像在所述图像预览区域内显示。
- 根据权利要求1所述的方法,其特征在于,所述获取与所述被拍摄对象的用户类型相匹配的非红外图像具体包括:获取与所述被拍摄对象的用户类型相匹配的所述图像预览区域的背景图像以及所述虹膜图案的替换图案,所述背景图像与所述替换图案均为非红外图像;所述将所述非红外图像在所述图像预览区域内显示具体包括:获取所述虹膜图案在所述红外图像中的位置,作为所述虹膜图案的替换图案在所述图像预览区域中的待显示位置;将所述背景图像显示在所述图像预览区域中,并将所述替换图案在所述待显示位置、于所述背景图像的上层显示。
- 根据权利要求1或2所述的方法,其特征在于,所述获取与所述被拍摄对象的用户类型相匹配的非红外图像之前,所述方法还包括:在数据库中预先存储背景图像和替换图案,并建立包含用户类型与背景图像和替换图案间对应关系的索引。
- 根据权利要求3所述的方法,其特征在于,所述获取与所述被拍摄对象的用户类型相匹配的非红外图像之后,所述方法还包括:若判定所述数据库未存储所述被拍摄对象的用户类型对应的背景图像和替换图案,则将所述被拍摄对象的用户类型和与所述被拍摄对象的用户类型相匹配的背景图像和替换图案对应存储至所述数据 库中,并建立包含所述被拍摄对象的用户类型和与所述被拍摄对象的用户类型相匹配的背景图像和替换图案间对应关系的索引。
- 根据权利要求1~4任一项所述的方法,其特征在于,所述将所述虹膜图案的替换图案在所述待显示位置、于所述背景图像的上层显示之前,所述方法还包括:获取第一比值;所述第一比值为虹膜图案的面积与所述红外图像的面积的比值;根据所述第一比值确定所述虹膜图案的替换图案的大小,使所述虹膜图案的替换图案的面积与所述背景图像的面积的比值为第一比值。
- 根据权利要求1~5任一项所述的方法,其特征在于,所述方法还包括:打开图像配置界面,所述图像配置界面包括背景图像设置选项和替换图案设置选项;获取第一用户指令,根据所述第一用户指令的指示将选定的背景图像设置为所述图像预览区域的背景图像,所述第一用户指令是用户点击所述背景图像设置选项时生成的;或者,获取第二用户指令,根据所述第二用户指令的指示将选定的替换图案设置为所述虹膜图案的替换图案,所述第二用户指令是用户点击所述替换图案设置选项时生成的。
- 一种基于虹膜识别的图像预览装置,其特征在于,包括:获取模块,用于获取由红外镜头采集的红外图像;确定模块,用于在所述获取模块获取的红外图像中包含虹膜图案的情况下,根据所述虹膜图案的虹膜参数确定被拍摄对象的用户类型;所述获取模块,还用于获取与所述被拍摄对象的用户类型相匹配的非红外图像,所述非红外图像包含所述虹膜图案的替换图案,所述替换图案在所述非红外图像中的位置由所述虹膜图案在所述红外图像中的位置决定;控制模块,用于将所述获取模块获取的所述非红外图像在所述图像预览区域内显示。
- 根据权利要求7所述的装置,其特征在于,所述获取模块在获取与所述被拍摄对象的用户类型相匹配的非红外图像时具体用于:获取与所述被拍摄对象的用户类型相匹配的所述图像预览区域的背景图像以及所述虹膜图案的替换图案,所述背景图像与所述替换图案均为非红外图像;所述控制模块具体用于:获取所述虹膜图案在所述红外图像中的位置,作为所述虹膜图案的替换图案在所述预览区域中的待显示位置;将所述背景图像显示在所述图像预览区域中,并将所述替换图案在所述待显示位置、于所述背景图像的上层显示。
- 根据权利要求7或8所述的装置,其特征在于,所述装置还包括:存储模块,用于在数据库中预先存储背景图像和替换图案,并建立包含用户类型与背景图像和替换图案间对应关系的索引。
- 根据权利要求9所述的装置,其特征在于:所述存储模块,还用于若判定所述数据库未存储所述被拍摄对象的用户类型对应的背景图像和替换图案,则将所述被拍摄对象的用户类型和与所述被拍摄对象的用户类型相匹配的背景图像和替换图案对应存储至所述数据库中。
- 根据权利要求7~10任一项所述的装置,其特征在于:所述获取模块,还用于获取第一比值;所述第一比值为虹膜图案的面积与所述红外图像的面积的比值;所述确定模块,还用于根据所述获取模块获取的所述第一比值确定所述虹膜图案的替换图案的大小,使所述虹膜图案的替换图案的面积与所述背景图像的面积的比值为第一比值。
- 根据权利要求7~11任一项所述的装置,其特征在于,所述装置还包括:处理模块,用于打开图像配置界面,所述图像配置界面包括背景图像设置选项和替换图案设置选项;所述获取模块,还用于获取第一用户指令;所述处理模块,还用于根据所述获取模块获取的所述第一用户指令的指示将选定的背景图像设置为所述图像预览区域的背景图像,所述第一用户指令是用户点击所述背景图像设置选项时生成的;或者,所述获取模块,还用于获取第二用户指令;所述处理模块,还用于根据所述获取模块获取的所述第二用户指令的指示将选定的替换图案设置为所述虹膜图案的替换图案,所述第二用户指令是用户点击所述替换图案设置选项时生成的。
- 一种基于虹膜识别的图像预览装置,其特征在于,所述装置包括:存储器和处理器,所述存储器用于存储计算机执行代码,所述计算机执行代码用于控制所述处理器执行权利要求1~5任一项所述的基于虹膜识别的图像预览方法。
- 一种计算机存储介质,其特征在于,用于储存为基于虹膜识别的图像预览装置所用的计算机软件指令,其包含执行权利要求1~6任一项所述的基于虹膜识别的图像预览方法所设计的程序代码。
- 一种计算机程序,其特征在于,可直接加载到计算机的内部存储器中,并含有软件代码,所述计算机程序经由计算机载入并执行后能够实现权利要求1~6任一项所述的基于虹膜识别的图像预览方法。
- 一种机器人,其特征在于,包括权利要求13所述的基于虹膜识别的图像预览装置。
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