WO2018194197A1 - 보정패턴 분석을 통한 영상 보정 방법 및 시스템 - Google Patents
보정패턴 분석을 통한 영상 보정 방법 및 시스템 Download PDFInfo
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- WO2018194197A1 WO2018194197A1 PCT/KR2017/004237 KR2017004237W WO2018194197A1 WO 2018194197 A1 WO2018194197 A1 WO 2018194197A1 KR 2017004237 W KR2017004237 W KR 2017004237W WO 2018194197 A1 WO2018194197 A1 WO 2018194197A1
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Definitions
- the following description relates to an image correction method and system through analysis of a correction pattern, and a computer program stored in a computer readable recording medium coupled to a computer for executing the image correction method on a computer, and a recording medium thereof.
- Korean Patent Publication No. 10-2006-0104027 (hereinafter referred to as 'Reference') relates to a virtual face shaping method and system based on automatic face extraction, and a user-selected shaping style (for example, as disclosed in References).
- 'Reference' Korean Patent Publication No. 10-2006-0104027
- 'Reference' relates to a virtual face shaping method and system based on automatic face extraction, and a user-selected shaping style (for example, as disclosed in References).
- a user-selected shaping style for example, as disclosed in References.
- the user can create a filter according to the molding style desired by the user, and after applying the produced filter to the input image again, the result can be checked, so if the correction result is not satisfactory, the new molding can be performed again.
- the process of producing the filter again according to the style and applying the produced filter to the input image again is necessary to repeat the process of producing the filter again according to the style and applying the produced filter to the input image again.
- the filters according to the prior art simply generate distortion by a predetermined amount of change for a specific part of the face (to make the eye larger by the amount of change specified for the above-mentioned “eye enlargement”), There is a problem that it is difficult to make a suitable correction.
- the "large eye” filter made for small eyes has a problem that it is not suitable for large eyes.
- the image correction method of the prior art is not only difficult to make a filter suitable for the user himself, but also difficult to share the created filter with other users.
- the user can correct the input image by directly moving the facial feature points so that the user includes a face included in the image.
- the present invention provides a method and system for correcting images suitable for all users, and a computer program stored on a computer readable recording medium for executing the image correction method in combination with a computer and the recording medium.
- An image correction method and system capable of optimizing the correction pattern information by analyzing the user's correction pattern for another image of the user and updating the correction pattern information, and to execute the image correction method on the computer in combination with a computer.
- a computer program stored in a computer readable recording medium and a recording medium thereof are provided.
- An image correction method comprising: recognizing facial feature points of a face included in an input first image; Displaying at least some of the recognized facial feature points on the screen of the electronic device together with the input first image; Recognizing a user input for moving at least one facial feature point of the facial feature points of the first image displayed on the screen; Moving at least one facial feature point of the first image according to the recognized user input, and correcting the input first image by using facial feature points of the first image changed according to the movement; And generating and storing correction pattern information by analyzing a pattern for correction of the first image.
- An image correction method comprising: recognizing facial feature points of a face included in a first image received from a electronic device through a network; At least some of the recognized facial feature points are displayed on the screen of the electronic device together with the input first image, and for movement of at least one of the facial feature points of the first image displayed on the screen.
- Providing a function for receiving user input Moving at least one facial feature point of the first image according to the recognized user input, and correcting the input first image by using facial feature points of the first image changed according to the movement; Analyzing the pattern for correction of the first image to generate correction pattern information and storing the correction pattern information in association with the electronic device or a user of the electronic device; And transmitting the corrected first image to the electronic device through a network.
- a computer program for recording a computer program for causing the computer to execute the image correction method is provided.
- a computer program stored on a computer readable recording medium for executing the image correction method on a computer.
- An image correction system comprising: at least one processor implemented to execute a computer readable instruction, wherein the at least one processor comprises facial feature points for a face included in a first image received over a network from an electronic device; And at least some of the recognized facial feature points are displayed on the screen of the electronic device together with the input first image, and at least one facial feature point of the facial feature points of the first image displayed on the screen.
- the user can correct the input image by directly moving the facial feature points so that the user includes a face included in the image.
- the image can be corrected while looking at this changing process in real time.
- correction pattern information that changes the proportion of each part of the face according to the moved facial feature points, and automatically corrects the input image according to the correction pattern information. By doing so, it is possible to make corrections suitable for all users.
- the correction pattern information may be optimized by analyzing the correction pattern of the user with respect to another image of the user and updating the correction pattern information.
- FIG. 1 is a diagram illustrating an example of a network environment according to an embodiment of the present invention.
- FIG. 2 is a block diagram illustrating an internal configuration of an electronic device and a server according to an embodiment of the present invention.
- FIG. 3 is a diagram illustrating an example of an image correction environment according to an exemplary embodiment of the present invention.
- FIG. 4 is a diagram illustrating another example of an image correction environment according to an embodiment of the present invention.
- FIG. 5 is a diagram illustrating an example of recognizing facial feature points of a face included in an image according to an embodiment of the present invention.
- FIG. 6 is a diagram illustrating an example of ratio information of each of the face parts with respect to the whole face according to one embodiment of the present invention.
- FIG. 7 is a block diagram illustrating an example of components that may be included in a processor of an electronic device according to an embodiment of the present invention.
- FIG. 8 is a flowchart illustrating an example of an image correction method that may be performed by an electronic device according to an embodiment of the present disclosure.
- FIG. 9 is a block diagram illustrating an example of components that may be included in a processor of a server according to an embodiment of the present invention.
- FIG. 10 is a flowchart illustrating an example of an image correction method that may be performed by a server according to an embodiment of the present invention.
- the image correction system according to the embodiments of the present invention may be implemented through an electronic device or a server to be described later, and the image production method according to the embodiments of the present invention is an image correction system implemented through such an electronic device or a server. It can be performed through.
- a computer program according to an embodiment of the present invention may be installed and driven in the electronic device or the server, and the electronic device or server may perform the image correction method according to the embodiment of the present invention under the control of the driven computer program. Can be done.
- the above-described computer program may be stored in a computer-readable recording medium in combination with an electronic device or a server implemented as a computer to execute a story image production method on a computer.
- FIG. 1 is a diagram illustrating an example of a network environment according to an embodiment of the present invention.
- the network environment of FIG. 1 illustrates an example including a plurality of electronic devices 110, 120, 130, and 140, a plurality of servers 150 and 160, and a network 170.
- 1 is an example for describing the present invention, and the number of electronic devices or the number of servers is not limited as shown in FIG. 1.
- the plurality of electronic devices 110, 120, 130, and 140 may be fixed terminals or mobile terminals implemented as computer devices.
- Examples of the plurality of electronic devices 110, 120, 130, and 140 include a smart phone, a mobile phone, a navigation device, a computer, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), and a portable multimedia player (PMP). Tablet PC).
- FIG. 1 illustrates the shape of a smart phone as an example of the electronic device 1 110, in the embodiments of the present invention, the electronic device 1 110 may use a wireless or wired communication method to substantially connect the network 170. It may mean one of various physical devices that can communicate with other electronic devices 120, 130, 140 and / or servers 150, 160.
- the communication method is not limited, and may include not only a communication method using a communication network (for example, a mobile communication network, a wired internet, a wireless internet, a broadcasting network) that the network 170 may include, but also a short range wireless communication between devices.
- the network 170 may include a personal area network (PAN), a local area network (LAN), a campus area network (CAN), a metropolitan area network (MAN), a wide area network (WAN), and a broadband network (BBN). And one or more of networks such as the Internet.
- the network 170 may also include any one or more of network topologies, including bus networks, star networks, ring networks, mesh networks, star-bus networks, trees, or hierarchical networks, but It is not limited.
- Each of the servers 150 and 160 communicates with the plurality of electronic devices 110, 120, 130, and 140 through the network 170 to provide a command, code, file, content, service, or the like. It may be implemented in devices.
- the server 150 may be a system that provides a first service to a plurality of electronic devices 110, 120, 130, and 140 connected through the network 170, and the server 160 may also have a network ( It may be a system that provides a second service to the plurality of electronic devices 110, 120, 130, and 140 connected through the 170.
- the server 150 is an application as a computer program installed and driven in the plurality of electronic devices 110, 120, 130, and 140, and the service (eg, image correction service, messaging, etc.) of the corresponding application. Service, mail service content delivery service, etc.) can be provided as the first service.
- the server 160 may provide a service for distributing the file for installing and driving the above application to the plurality of electronic devices 110, 120, 130, and 140 as a second service.
- 2 is a block diagram illustrating an internal configuration of an electronic device and a server according to an embodiment of the present invention. 2 illustrates an internal configuration of the electronic device 1 110 and the server 150 as an example of the electronic device. In addition, the other electronic devices 120, 130, 140, or the server 160 may also have the same or similar internal configuration as the aforementioned electronic device 1 110 or the server 150.
- the electronic device 1 110 and the server 150 may include memories 211 and 221, processors 212 and 222, communication modules 213 and 223, and input / output interfaces 214 and 224.
- the memories 211 and 221 may be computer-readable recording media, and may include a permanent mass storage device such as random access memory (RAM), read only memory (ROM), and a disk drive.
- RAM random access memory
- ROM read only memory
- the non-volatile mass storage device such as a ROM and a disk drive may be included in the electronic device 1 110 or the server 150 as a separate permanent storage device that is separated from the memories 211 and 221.
- the memory 211, 221 includes an operating system and at least one program code (for example, a browser installed and driven in the electronic device 1 110 or an application installed in the electronic device 1 110 to provide a specific service). Code) can be stored.
- These software components may be loaded from a computer readable recording medium separate from the memories 211 and 221.
- Such a separate computer-readable recording medium may include a computer-readable recording medium such as a floppy drive, disk, tape, DVD / CD-ROM drive, memory card, and the like.
- software components may be loaded into the memory 211, 221 through a communication module 213, 223 that is not a computer readable recording medium.
- At least one program is a computer program that is installed by files provided by a file distribution system (for example, the server 160 described above) through the network 170 to distribute installation files of developers or applications. It may be loaded into the memories 211 and 221 based on (for example, the above-described application).
- a file distribution system for example, the server 160 described above
- the network 170 to distribute installation files of developers or applications. It may be loaded into the memories 211 and 221 based on (for example, the above-described application).
- Processors 212 and 222 may be configured to process instructions of a computer program by performing basic arithmetic, logic, and input / output operations. Instructions may be provided to the processors 212, 222 by the memory 211, 221 or the communication modules 213, 223. For example, the processors 212 and 222 may be configured to execute a command received according to a program code stored in a recording device such as the memory 211 and 221.
- the communication modules 213 and 223 may provide a function for the electronic device 1 110 and the server 150 to communicate with each other through the network 170, and the electronic device 1 110 and / or the server 150 may communicate with each other. May provide a function for communicating with another electronic device (eg, electronic device 2 120) or another server (eg, server 160). For example, a request generated by the processor 212 of the electronic device 1 110 according to a program code stored in a recording device such as the memory 211 may be controlled by the server 170 through the network 170 under the control of the communication module 213. 150).
- control signals, commands, contents, files, and the like provided according to the control of the processor 222 of the server 150 are transmitted to the communication module of the electronic device 1 110 via the communication module 223 and the network 170 ( It may be received by the electronic device 1110 through 213.
- the control signal, command, content, file, etc. of the server 150 received through the communication module 213 may be transmitted to the processor 212 or the memory 211, and the content, file, etc. may be transferred to the electronic device 1.
- 110 may be stored as a storage medium (permanent storage described above) that may further include.
- the input / output interface 214 may be a means for interfacing with the input / output device 215.
- the input device may include a device such as a keyboard or a mouse, and the output device may include a device such as a display or a speaker.
- the input / output interface 214 may be a means for interfacing with a device in which functions for input and output are integrated into one, such as a touch screen.
- the input / output device 215 may be configured as one device with the electronic device 1110.
- the input / output interface 224 of the server 150 may be a means for interfacing with an apparatus (not shown) for input or output that may be connected to or included in the server 150.
- the processor 212 of the electronic device 1110 uses data provided by the server 150 or the electronic device 2 120 in processing a command of a computer program loaded in the memory 211.
- the service screen or the content may be displayed on the display through the input / output interface 214.
- the electronic device 1 110 and the server 150 may include more components than those of FIG. 2. However, it is not necessary to clearly show most of the prior art components.
- the electronic device 1 110 may be implemented to include at least some of the above-described input / output devices 215 or other components such as a transceiver, a global positioning system (GPS) module, a camera, various sensors, a database, and the like. It may further include elements.
- GPS global positioning system
- an acceleration sensor when the electronic device 1 110 is a smartphone, an acceleration sensor, a gyro sensor, a camera module, various physical buttons, a button using a touch panel, an input / output port, and vibration for a smartphone generally include Various components such as a vibrator may be implemented to be further included in the electronic device 1 110.
- 3 is a diagram illustrating an example of an image correction environment according to an exemplary embodiment of the present invention.
- 3 illustrates an example in which the image correction server 310 provides an image correction service to N user terminals 320.
- the image correction server 310 receives an image through the network 170 from a specific user terminal at the request of a specific user terminal (for example, user terminal 1) of the N user terminals 320, The received image may be corrected and provided to a specific user terminal.
- a specific user terminal may designate an image stored on the web, and the image correction server 310 may correct the designated image and provide the image to the corresponding user terminal.
- the image correction server 310 may correspond to the server 150 described above, and the specific user terminal may correspond to one of the plurality of electronic devices 110, 120, 130, and 140 described above.
- an application associated with an image correction service may be installed and driven in a specific user terminal, and the specific user terminal may receive an image correction service while communicating with the image correction server 310 under the control of the application.
- the specific user terminal may transmit an image selected through an application among the images stored in the storage of the specific user terminal to the image correction server 310.
- the specific user terminal may transmit an image input through a camera included in the specific user terminal to the image correction server 310.
- the image correction server 310 may correct the received image according to the image correction method according to embodiments of the present invention and provide it to a specific user terminal.
- FIG. 4 is a diagram illustrating another example of an image correction environment according to an embodiment of the present invention.
- 4 illustrates an example in which an application 410 installed and driven in the user terminal 400 directly provides an image correction service.
- the user terminal 400 may correct an image input through the camera module 420 under the control of the application 410.
- the image stored in the storage of the user terminal 400 may be corrected under the control of the application 410.
- the camera module 420 may be embedded in the user terminal 400, but may be implemented as a separate device to communicate with the user terminal 400 through a wired or wireless network.
- the user terminal 400 may recognize face feature points of the face included in the input image, and display the recognized face feature points on the screen of the user terminal 400 together with the input image.
- the image correction server 310 may recognize face feature points of a face included in the received image, and the image of the specific user terminal described with reference to FIG. It can be controlled to be displayed on the screen. In this case, controlling to display the facial feature points recognized through the specific user screen and the input image together may be performed through communication with an application installed in the specific user terminal.
- 5 is a diagram illustrating an example of recognizing facial feature points of a face included in an image according to an embodiment of the present invention.
- 5 illustrates an example in which facial feature points recognized for a face included in an image are displayed together with the corresponding image.
- the user may be provided with a function for moving the facial feature points.
- an application installed in the user terminal 400 may provide a function of moving corresponding facial feature points based on a user input.
- the user may selectively move the first facial feature point 510 of FIG. 5 to a desired position by using the above-described function.
- an application may recognize a facial feature point corresponding to a location where a user's touch is made, and recognize the location where the user drags and releases the touch while touching the touch screen. It can be recognized as a position to move.
- an application may recognize a facial feature point corresponding to a position where a user clicks the mouse, and recognize the position where the user drags the mouse while clicking and releases the mouse click. It can be recognized as a position to move.
- the application may move the recognized facial feature point to the recognized position, and correct the image by using the facial feature points changed according to the movement of the facial feature point.
- the movement of the facial feature point may be repeated a plurality of times, and the image may be repeatedly corrected by using the changed facial feature points whenever the facial feature point is moved. Therefore, the user may obtain a desired image by repeatedly correcting the image while looking at the image to be corrected in real time.
- information about a facial feature point (for example, an identifier of the facial feature point) recognized according to a user input and information about a position to move the recognized facial feature point are recognized by a specific user terminal to establish a network. It may be transmitted to the image correction server 310 through.
- the image correction server 310 may correct the image by using the changed facial feature points and provide the corrected image to a specific user terminal. Even in this case, the corrected image may be displayed on the screen of the specific user terminal together with the changed facial feature points. Therefore, the user can repeatedly correct the image by moving the facial feature points while watching the changing image.
- the user terminal 400 or the image correction server 310 may generate and store correction pattern information by analyzing a pattern for correction of an image. For example, such correction pattern information may be finally generated after the correction for the image is completed.
- the correction pattern information may be generated to include ratio information of each of the face parts with respect to the entire face.
- another image may be automatically corrected by using the correction pattern information.
- FIG. 6 is a diagram illustrating an example of ratio information of each of the face parts with respect to the whole face according to one embodiment of the present invention.
- Such ratio information may provide information that can change the ratio of the entire face, not just a filter that increases a specific area by a specific value.
- a filter that increases the width of an eye by 0.1 cm to the left causes both the eye in the image having an eye width of 3 cm and the eye in the image having a width of 4 cm to the left in a batch. Therefore, there is a possibility that awkward correction is made according to the size of the eye in the image.
- FIG. 6 when the width of the entire face is '7', between the right end of the face and the right eyebrow (hereinafter, the first part), the right eyebrow (hereinafter, the second part), and the brow (hereinafter, the third part) ),
- the ratio of the first portion to the fifth portion in another image is 0.8: 2.1: 1.2: 2.1: 0.8
- the image is adjusted so that the ratio is 1: 2: 1: 2: 1 according to the correction pattern information. Can be corrected.
- the width of the left eyebrow in the other image The width of the left eyebrows can be corrected so that the ratio is 7: 2.
- the specific pattern is not changed by a fixed displacement value, but is changed by the ratio information of the corresponding area with respect to the entire face included in the correction pattern information, so that the correction pattern information is universally available to all users. This can be done, and a correction more appropriate to the individual users can be made. Therefore, correction pattern information generated in the process of correcting an image to be suitable for a user's face may be applied to face images of other users, which may mean that the utilization of sharing correction pattern information may be improved. have.
- correction pattern information may be repeatedly used for other face images input to the user. For example, with respect to a video photographed of a user's face, automatic correction using correction pattern information may be performed on each of the frames included in the video to process face correction on the entire video. As another example, an automatic correction using correction pattern information may be performed on each of the face image frames of the user input through the camera during a video call so that the corrected images may be delivered to the video call counterpart.
- the correction pattern information may be updated by additionally reflecting a correction pattern for another image of the user.
- the correction pattern for another image may be used to update the correction pattern information by being additionally reflected in the previously generated and stored correction pattern information according to a user's request.
- the average value of the changing ratio can be utilized. For example, when the ratio of the width of the left eyebrow to the width of the entire face is 7: 2 first, and the ratio of the width of the left eyebrow to the width of the left eyebrow calculated in the following image is 7: 1.8.
- the ratio 7: 2 included in the correction pattern information may be updated as in 7: 1.9.
- 1.9 may be calculated as (2 + 1.8) / 2.
- 18.4 may be calculated as ((2 * 10) + (2.4 * 7)) / 2.
- the correction pattern for the other image may be used to generate other correction pattern information according to an embodiment.
- Table 1 below shows an example of a database table that stores correction pattern information.
- the 'Object' item may be an item meaning a face part, and the value may identify the face part, and the 'Property' item may have a ratio such as the width and length of the face part. It may mean a standard for measuring.
- the 'Ratio' item may mean ratio information of a corresponding face part of the entire face
- the 'Marker' item may mean face feature points.
- each of the facial feature points may correspond to location information corresponding to the corresponding facial feature point in the face image.
- the width and length of the entire face may be included in Table 1 as separate 'Object' items, or may be calculated by combining face parts as necessary.
- FIG. 7 is a block diagram illustrating an example of a component that may be included in a processor of an electronic device according to an embodiment of the present invention
- FIG. 8 is an image that may be performed by the electronic device according to an embodiment of the present invention. It is a flowchart which shows the example of the correction method.
- the image correction system may be implemented in the form of a computer device such as the electronic device 1 (110) described above.
- the processor 212 of the electronic device 1 110 may be a facial feature point recognizer 710, a display 720, and a user input recognizer 730 as components for implementing an image correction system. ), An image corrector 740, a correction pattern information manager 750, and a transmitter 760.
- the processor 212 and the components of the processor 212 may perform steps 810 to 890 included in the image correction method of FIG. 8.
- the processor 212 and the components of the processor 212 may be implemented to execute a control instruction (instruction) according to the code of the operating system or at least one program included in the memory 211.
- the components of the processor 212 may be representations of different functions of the processor 212 performed by the processor 212 according to a control command provided by a code stored in the electronic device 1110.
- the facial feature point recognition unit 710 may be used as a functional representation of the processor 212 that controls the electronic device 1110 so that the processor 212 recognizes the facial feature point according to the above-described control command.
- the facial feature point recognizer 710 may recognize facial feature points of a face included in the input first image. Specific techniques for recognizing facial feature points in a face image may be easily understood by those skilled in the art through well-known techniques.
- the input image may be an image included in the electronic device 1 110 or input through a camera linked with the electronic device 1 110, or may be an image stored in a local storage of the electronic device 1 110.
- the electronic device 1 110 may be an image received from another device through the network 170 or an image stored on the web.
- the display unit 720 may display on the screen of the electronic device 1110 together with the first image to which at least some of the recognized facial feature points are input. For example, as described with reference to FIG. 5, an image and facial feature points may be displayed together on one screen.
- the screen of the electronic device 1 110 may mean a screen of a display device (for example, a touch screen) included in the electronic device 1 110, and is a device separate from the electronic device 1 110. It may mean a screen of a display device (for example, a monitor) that communicates with 110.
- the user input recognition unit 730 may recognize a user input for moving at least one facial feature point among the facial feature points of the first image displayed on the screen.
- a user input for moving at least one facial feature point among the facial feature points of the first image displayed on the screen As described above, an example of moving a facial feature point through user input in a touch screen environment or a mouse environment has been described. It will be readily apparent to those skilled in the art that these examples may recognize user input for moving facial feature points in other input environments.
- the image corrector 740 moves at least one facial feature point of the first image according to the recognized user input, and adjusts the inputted first image using the facial feature points of the first image changed according to the movement. You can correct it.
- Embodiments of the present invention relate to how the facial feature points can be moved. Correcting the face of an image according to the position of the facial feature point that has already been moved will be easily understood by those skilled in the art through known techniques. For example, a technique using a pre-fabricated filter is also known to move a marker by a predetermined amount of change and to correct a face image according to the moved marker.
- the corrected first image and the changed facial feature points may be displayed together on the screen, and the processes (steps 820 to 840) of the first image correction according to the movement and the movement of the facial feature points are repeatedly performed a plurality of times. May be
- the correction pattern information manager 750 may generate and store correction pattern information by analyzing a pattern for correction of the first image.
- the correction pattern information may be generated in various ways, but for the purpose of versatility of the generated correction pattern information, it may be generated using ratio information of each of the face parts with respect to the entire face.
- the correction pattern information management unit 750 recognizes the face parts in the face of the first image by using the facial feature points of the first image changed according to the movement, and corrects ratio information of each of the face parts of the whole face. It can be calculated as pattern information.
- the correction pattern information includes a region identifier of each of the facial regions, ratio information on the width and length of each of the facial regions with respect to the width and length of the entire face, and feature point identifiers of facial feature points corresponding to each of the facial regions. It may include information associated with each other.
- the correction pattern information generated in this manner may be stored as a DB as shown in Table 1 described above.
- the correction pattern information may be generated to include the facial feature points of the first image changed according to the movement.
- the correction pattern information may be generated to include both the facial feature points of the first image before the change and the facial feature points of the first image after the change. For example, first, only the facial feature points of the first image changed according to the movement are stored, and afterwards, the above-described ratio information is selectively calculated and used, or only the information about the actual facial feature points is automatically modified to automatically correct the other image. You can also process
- steps 810 to 850 may be selectively repeated for the second image (or each of two or more other images).
- a process such as recognition, movement, correction, and generation of correction pattern information of facial feature points may be repeated with respect to the second image (or each of two or more other images).
- the correction pattern information manager 750 may analyze the pattern for correction of the second image and update the stored correction pattern information.
- the correction pattern information for the stored first image may be updated by using the correction pattern information generated for the second image.
- the example of updating the correction pattern information using the average value of the correction ratio has already been described in detail.
- a weight based on a point in time at which the correction pattern information is generated or a weight set by the user may be further used to update the correction pattern information, and may round or round a value below a certain decimal point in the calculation process. It will be readily understood by those skilled in the art through the examples described above.
- the stored correction pattern information may be updated using the correction pattern information generated for each of the two or more other images.
- This step 860 may be selectively performed only when steps 810 to 850 are repeatedly performed on other images including the second image.
- the facial feature point recognizer 710 may recognize facial feature points of a face included in the input third image.
- This step 870 corresponds to step 810 and may be performed when the automatic correction for the third image is to be processed. For example, when a command related to automatic correction is explicitly received from the user, or when a preset condition is satisfied that automatic correction is required, the recognition process of the facial feature point for the automatic correction may be performed.
- the image corrector 740 moves at least one of the facial feature points recognized in the third image by using the stored correction pattern information, and uses the facial feature points of the third image changed according to the movement.
- the image corrector 740 automatically adjusts the third image to face information included in the third image such that the ratio information of each of the face parts of the entire face is included in the correction pattern information stored therein. You can correct it.
- the transmitter 760 may transmit the stored correction pattern information to at least one of another electronic device and a server through a network in order to share the stored correction pattern information.
- This step 890 may be performed at any time after the correction pattern information is first generated and stored through the step 850.
- the user may move the facial feature points while looking at the image and the facial feature points to be directly corrected, and may correct the image as desired while watching the image correction process according to the movement of the facial feature points.
- the stored correction pattern information may be updated through the correction pattern information for the other image.
- the ratio information of each of the face parts of the entire face to generate the correction pattern information, by using the ratio information to correct the face image, it is possible to achieve the versatility of the correction pattern information.
- FIG. 7 and 8 illustrate an embodiment in which the electronic device 1 110 provides an image correction service under the control of an application.
- the image correction service is provided through the image correction server 310. May be provided.
- FIG. 9 is a block diagram illustrating an example of a component that may be included in a processor of a server according to an embodiment of the present invention
- FIG. 10 is an image correction method that may be performed by a server according to an embodiment of the present invention.
- the image correction system may be implemented in the form of a computer device such as the server 150 described above.
- the processor 222 of the server 150 may be a receiver 910, a facial feature point recognizer 920, a function provider 930, and an image as components for implementing an image correction system.
- the correction unit 940, the transmission unit 950, and the correction pattern information management unit 960 may be included.
- the processor 222 and the components of the processor 222 may perform steps 1010 to 1090 included in the image correction method of FIG. 10.
- the processor 222 and the components of the processor 222 may be implemented to execute a control instruction according to a code of an operating system included in the memory 221 or a code of at least one program.
- the components of the processor 222 may be representations of different functions of the processor 222 performed by the processor 222 according to a control command provided by a code stored in the server 150.
- the receiver 910 may be used as a functional representation of the processor 222 that controls the server 150 so that the processor 222 receives an image according to the above-described control command.
- the receiver 910 may receive a first image from an electronic device through a network.
- the electronic device may be a device on which an application associated with an image correction service is installed and driven, and may transmit a first image to be corrected by communicating with the server 150 through the application to the server 150.
- the first image may be an image included in the electronic device or input through a camera linked with the electronic device, or may be an image stored in a local storage of the electronic device.
- the electronic device may be an image received from another device through the network 170 or an image stored on the web.
- the facial feature point recognizer 920 may recognize facial feature points of a face included in the first image. As described above, specific techniques for recognizing facial feature points in the face image may be easily understood by those skilled in the art through well-known techniques.
- the function providing unit 930 controls at least some of the recognized facial feature points to be displayed on the screen of the electronic device together with the input first image, and at least one of the facial feature points of the first image displayed on the screen.
- a function for receiving information on the movement of one facial feature point may be provided. Such a function may be achieved through interworking with an application installed and driven in an electronic device. As described above, the identifier of the facial feature point moved in the electronic device and the information about the moved position may be recognized and transmitted to the server 150 under the control of the application of the electronic device.
- the image corrector 940 may correct the input first image by using the facial feature points of the first image changed according to the movement.
- Embodiments of the present invention relate to how the facial feature points can be moved. Correcting the face of an image according to the position of the facial feature point that has already been moved will be easily understood by those skilled in the art through known techniques. For example, a technique using a pre-fabricated filter is also known to move a marker by a predetermined amount of change and to correct a face image according to the moved marker.
- the transmitter 950 may transmit the corrected second image to the electronic device through a network.
- the correction process of the second image according to the steps 1010 to 1050 may be repeatedly performed a plurality of times.
- the correction pattern information manager 960 may analyze the pattern for correction of the first image to generate correction pattern information and store the correction pattern information in association with the electronic device or the user of the electronic device. Since the correction pattern information has already been described in detail, repeated description thereof will be omitted.
- the steps 1010 to 1060 may be selectively repeated with respect to the second image (or each of two or more other images).
- a process such as receiving an image, recognizing facial features, moving, correcting, transmitting a corrected image, and generating correction pattern information may be repeated with respect to the second image (or each of two or more other images).
- the correction pattern information manager 960 may analyze the pattern for the correction of the second image and update the stored correction pattern information.
- the correction pattern information for the stored first image may be updated by using the correction pattern information generated for the second image.
- the stored correction pattern information may be updated by using the correction pattern information generated for each of the two or more other images.
- This step 1070 may be selectively performed only when steps 1010 to 1060 are repeatedly performed on other images including the second image.
- the facial feature point recognizer 920 may recognize facial feature points of a face included in a third image received from the electronic device through a network.
- This step 1080 corresponds to steps 1010 and 1020 and may be selectively performed when the automatic correction for the third image is to be processed. For example, when a command related to automatic correction is explicitly received from the user, or when a preset condition is satisfied that automatic correction is required, the recognition process of the facial feature point for the automatic correction may be performed.
- the image corrector 940 moves at least one facial feature point among the facial feature points recognized in the third image using the stored correction pattern information, and uses the facial feature points of the third image changed according to the movement. To automatically correct the input third image.
- the corrected third image may be transmitted to the electronic device through a network.
- the correction pattern information stored in the present embodiment may also be shared with other users.
- the server 150 may deliver the stored correction pattern information to another user recognized through the request according to the user's request.
- the user may directly share it with other users.
- the facial image is recognized by the user by directly moving the facial feature points in a state in which the facial feature points recognized in the input image are displayed on the screen together with the input image.
- the correction pattern information is generated by changing the ratio of the face parts to the entire face according to the moved facial feature points, and the image inputted according to the correction pattern information is generated. Auto-calibration makes it possible to make a calibration that suits all users.
- the correction pattern information may be optimized by analyzing the correction pattern of the user with respect to another image of the user and updating the correction pattern information.
- the system or apparatus described above may be implemented as a hardware component, a software component or a combination of hardware components and software components.
- the devices and components described in the embodiments are, for example, processors, controllers, arithmetic logic units (ALUs), digital signal processors, microcomputers, field programmable gate arrays (FPGAs).
- ALUs arithmetic logic units
- FPGAs field programmable gate arrays
- PLU programmable logic unit
- the processing device may execute an operating system (OS) and one or more software applications running on the operating system.
- the processing device may also access, store, manipulate, process, and generate data in response to the execution of the software.
- processing device includes a plurality of processing elements and / or a plurality of types of processing elements. It can be seen that it may include.
- the processing device may include a plurality of processors or one processor and one controller.
- other processing configurations are possible, such as parallel processors.
- the software may include a computer program, code, instructions, or a combination of one or more of the above, and configure the processing device to operate as desired, or process it independently or collectively. You can command the device.
- Software and / or data may be any type of machine, component, physical device, virtual equipment, computer storage medium or device in order to be interpreted by or to provide instructions or data to the processing device. It can be embodied in.
- the software may be distributed over networked computer systems so that they may be stored or executed in a distributed manner.
- Software and data may be stored on one or more computer readable media.
- the method according to the embodiment may be embodied in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium.
- the computer readable medium may include program instructions, data files, data structures, etc. alone or in combination.
- the program instructions recorded on the media may be those specially designed and constructed for the purposes of the embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts.
- Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks.
- Such a recording medium may be various recording means or storage means in the form of a single or several hardware combined, and is not limited to a medium directly connected to any computer system, but may be distributed on a network.
- Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.
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Abstract
Description
Object | Property | Ratio | Marker |
Nose | Width | 2.5 | M2, M3, M4, M5, M6 |
Length | 4 | M2, M3, M4, M5, M6 | |
Left Eye | Width | 0.8 | M9, M10, M11, M12, M13, M14, M15 |
Length | 1 | M9, M10, M11, M12, M13, M14, M15 | |
Right Eye | Width | 0.8 | M18, M19, M20, M21, M22, M23, M24 |
Length | 1 | M18, M19, M20, M21, M22, M23, M24 | |
Jaw | Width | 5 | M92, M93, M95 |
Length | 3 | M92, M93, M95 | |
Forehead | ? | ? | ? |
? | ? | ? | ? |
Claims (16)
- 컴퓨터로 구현되는 전자 기기와 결합되어 영상 보정 방법을 컴퓨터에 실행시키기 위해 컴퓨터 판독 가능한 기록매체에 저장된 컴퓨터 프로그램에 있어서,상기 영상 보정 방법은,입력된 제1 영상에 포함된 얼굴에 대한 얼굴 특징점들을 인식하는 단계;상기 인식된 얼굴 특징점들 중 적어도 일부가 상기 입력된 제1 영상과 함께 상기 전자 기기의 화면에 표시하는 단계;상기 화면에 표시된 제1 영상의 얼굴 특징점들 중 적어도 하나의 얼굴 특징점의 이동을 위한 사용자 입력을 인식하는 단계;상기 인식된 사용자 입력에 따라 상기 제1 영상의 적어도 하나의 얼굴 특징점을 이동시키고, 상기 이동에 따라 변경된 상기 제1 영상의 얼굴 특징점들을 이용하여 상기 입력된 제1 영상을 보정하는 단계; 및상기 제1 영상의 보정에 대한 패턴을 분석하여 보정패턴정보를 생성 및 저장하는 단계를 포함하는 것을 특징으로 하는 컴퓨터 프로그램.
- 제1항에 있어서,상기 영상 보정 방법은,입력된 제2 영상에 포함된 얼굴에 대한 얼굴 특징점들을 인식하는 단계;상기 인식된 얼굴 특징점들 중 적어도 일부가 상기 입력된 제2 영상과 함께 상기 전자 기기의 화면에 표시하는 단계;상기 화면에 표시된 제2 영상의 얼굴 특징점들 중 적어도 하나의 얼굴 특징점의 이동을 위한 사용자 입력을 인식하는 단계;상기 인식된 사용자 입력에 따라 상기 제2 영상의 적어도 하나의 얼굴 특징점을 이동시키고, 상기 이동에 따라 변경된 상기 제1 영상의 얼굴 특징점들을 이용하여 상기 입력된 제2 영상을 보정하는 단계; 및상기 제2 영상의 보정에 대한 패턴을 분석하여 상기 저장된 보정패턴정보를 갱신하는 단계를 더 포함하는 것을 특징으로 하는 컴퓨터 프로그램.
- 제1항에 있어서,상기 영상 보정 방법은,입력된 제3 영상에 포함된 얼굴에 대한 얼굴 특징점들을 인식하는 단계; 및상기 제3 영상에서 인식된 얼굴 특징점들 중 적어도 하나의 얼굴 특징점을 상기 저장된 보정패턴정보를 이용하여 이동시키고, 상기 이동에 따라 변경된 상기 제3 영상의 얼굴 특징점들을 이용하여 상기 입력된 제3 영상을 자동 보정하는 단계를 더 포함하는 것을 특징으로 하는 컴퓨터 프로그램.
- 제1항에 있어서,상기 보정패턴정보를 생성 및 저장하는 단계는,상기 이동에 따라 변경된 상기 제1 영상의 얼굴 특징점들을 이용하여 상기 제1 영상의 얼굴에서 얼굴 부위들을 인식하고, 상기 얼굴 전체에 대한 상기 얼굴 부위들 각각의 비율 정보를 상기 보정패턴정보로서 계산하는 것을 특징으로 하는 컴퓨터 프로그램.
- 제4항에 있어서,상기 보정패턴정보는 상기 얼굴 부위들 각각의 부위 식별자, 상기 얼굴 전체의 너비 및 길이에 대한 상기 얼굴 부위들 각각의 너비 및 길이에 대한 비율 정보 및 상기 얼굴 부위들 각각에 대응하는 얼굴 특징점들의 특징점 식별자가 서로 연계된 정보를 포함하는 것을 특징으로 하는 컴퓨터 프로그램.
- 제4항에 있어서,상기 보정패턴정보는 상기 이동에 따라 변경된 상기 제1 영상의 얼굴 특징점들을 더 포함하는 것을 특징으로 하는 컴퓨터 프로그램.
- 제1항에 있어서,상기 영상 보정 방법은,상기 저장된 보정패턴정보의 공유를 위해, 상기 저장된 보정패턴정보를 네트워크를 통해 다른 전자 기기 및 서버 중 적어도 하나로 전송하는 단계를 더 포함하는 것을 특징으로 하는 컴퓨터 프로그램.
- 영상 보정 방법에 있어서,입력된 제1 영상에 포함된 얼굴에 대한 얼굴 특징점들을 인식하는 단계;상기 인식된 얼굴 특징점들 중 적어도 일부를 상기 입력된 제1 영상과 함께 상기 전자 기기의 화면에 표시하는 단계;상기 화면에 표시된 제1 영상의 얼굴 특징점들 중 적어도 하나의 얼굴 특징점의 이동을 위한 사용자 입력을 인식하는 단계;상기 인식된 사용자 입력에 따라 상기 제1 영상의 적어도 하나의 얼굴 특징점을 이동시키고, 상기 이동에 따라 변경된 상기 제1 영상의 얼굴 특징점들을 이용하여 상기 입력된 제1 영상을 보정하는 단계; 및상기 제1 영상의 보정에 대한 패턴을 분석하여 보정패턴정보를 생성 및 저장하는 단계를 포함하는 것을 특징으로 하는 영상 보정 방법.
- 제8항에 있어서,입력된 제2 영상에 포함된 얼굴에 대한 얼굴 특징점들을 인식하는 단계;상기 인식된 얼굴 특징점들 중 적어도 일부를 상기 입력된 제2 영상과 함께 상기 전자 기기의 화면에 표시하는 단계;상기 화면에 표시된 제2 영상의 얼굴 특징점들 중 적어도 하나의 얼굴 특징점의 이동을 위한 사용자 입력을 인식하는 단계;상기 인식된 사용자 입력에 따라 상기 제2 영상의 적어도 하나의 얼굴 특징점을 이동시키고, 상기 이동에 따라 변경된 상기 제1 영상의 얼굴 특징점들을 이용하여 상기 입력된 제2 영상을 보정하는 단계; 및상기 제2 영상의 보정에 대한 패턴을 분석하여 상기 저장된 보정패턴정보를 갱신하는 단계를 더 포함하는 것을 특징으로 하는 영상 보정 방법.
- 제8항에 있어서,입력된 제3 영상에 포함된 얼굴에 대한 얼굴 특징점들을 인식하는 단계; 및상기 제3 영상에서 인식된 얼굴 특징점들 중 적어도 하나의 얼굴 특징점을 상기 저장된 보정패턴정보를 이용하여 이동시키고, 상기 이동에 따라 변경된 상기 제3 영상의 얼굴 특징점들을 이용하여 상기 입력된 제3 영상을 자동 보정하는 단계를 더 포함하는 것을 특징으로 하는 영상 보정 방법.
- 영상 보정 방법에 있어서,전자 기기로부터 네트워크를 통해 수신된 제1 영상에 포함된 얼굴에 대한 얼굴 특징점들을 인식하는 단계;상기 인식된 얼굴 특징점들 중 적어도 일부가 상기 입력된 제1 영상과 함께 상기 전자 기기의 화면에 표시되도록 제어하고, 상기 화면에 표시된 제1 영상의 얼굴 특징점들 중 적어도 하나의 얼굴 특징점의 이동에 대한 정보를 수신하기 위한 기능을 제공하는 단계;상기 이동에 따라 변경된 상기 제1 영상의 얼굴 특징점들을 이용하여 상기 입력된 제1 영상을 보정하는 단계;상기 보정된 제1 영상을 네트워크를 통해 상기 전자 기기로 전송하는 단계; 및상기 제1 영상의 보정에 대한 패턴을 분석하여 보정패턴정보를 생성하여 상기 전자 기기 또는 상기 전자 기기의 사용자와 연관하여 저장하는 단계를 포함하는 것을 특징으로 하는 영상 보정 방법.
- 제11항에 있어서,상기 전자 기기로부터 네트워크를 통해 수신된 제2 영상에 포함된 얼굴에 대한 얼굴 특징점들을 인식하는 단계;상기 인식된 얼굴 특징점들 중 적어도 일부가 상기 입력된 제2 영상과 함께 상기 전자 기기의 화면에 표시되도록 제어하고, 상기 화면에 표시된 제2 영상의 얼굴 특징점들 중 적어도 하나의 얼굴 특징점의 이동에 대한 정보를 수신하기 위한 기능을 제공하는 단계;상기 이동에 따라 변경된 상기 제1 영상의 얼굴 특징점들을 이용하여 상기 입력된 제2 영상을 보정하는 단계;상기 보정된 제2 영상을 네트워크를 통해 상기 전자 기기로 전송하는 단계; 및상기 제2 영상의 보정에 대한 패턴을 분석하여 상기 저장된 보정패턴정보를 갱신하는 단계를 더 포함하는 것을 특징으로 하는 영상 보정 방법.
- 제11항에 있어서,상기 전자 기기로부터 네트워크를 통해 수신된 제3 영상에 포함된 얼굴에 대한 얼굴 특징점들을 인식하는 단계;상기 제3 영상에서 인식된 얼굴 특징점들 중 적어도 하나의 얼굴 특징점을 상기 저장된 보정패턴정보를 이용하여 이동시키고, 상기 이동에 따라 변경된 상기 제3 영상의 얼굴 특징점들을 이용하여 상기 입력된 제3 영상을 자동 보정하는 단계; 및상기 자동 보정된 제3 영상을 네트워크를 통해 상기 전자 기기로 전송하는 단계를 더 포함하는 것을 특징으로 하는 영상 보정 방법.
- 제11항에 있어서,상기 보정패턴정보를 생성 및 저장하는 단계는,상기 이동에 따라 변경된 상기 제1 영상의 얼굴 특징점들을 이용하여 상기 제1 영상의 얼굴에서 얼굴 부위들을 인식하고, 상기 얼굴 전체에 대한 상기 얼굴 부위들 각각의 비율 정보를 상기 보정패턴정보로서 계산하는 것을 특징으로 하는 영상 보정 방법.
- 제14항에 있어서,상기 보정패턴정보는 상기 얼굴 부위들 각각의 부위 식별자, 상기 얼굴 전체의 너비 및 길이에 대한 상기 얼굴 부위들 각각의 너비 및 길이에 대한 비율 정보 및 상기 얼굴 부위들 각각에 대응하는 얼굴 특징점들의 특징점 식별자가 서로 연계된 정보를 포함하는 것을 특징으로 하는 영상 보정 방법.
- 제14항에 있어서,상기 보정패턴정보는 상기 이동에 따라 변경된 상기 제1 영상의 얼굴 특징점들을 더 포함하는 것을 특징으로 하는 영상 보정 방법.
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