WO2017113873A1 - Procédé et dispositif de synthèse d'image, et support de stockage informatique - Google Patents

Procédé et dispositif de synthèse d'image, et support de stockage informatique Download PDF

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Publication number
WO2017113873A1
WO2017113873A1 PCT/CN2016/098207 CN2016098207W WO2017113873A1 WO 2017113873 A1 WO2017113873 A1 WO 2017113873A1 CN 2016098207 W CN2016098207 W CN 2016098207W WO 2017113873 A1 WO2017113873 A1 WO 2017113873A1
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WIPO (PCT)
Prior art keywords
picture
image
background
information
keyword
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PCT/CN2016/098207
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English (en)
Chinese (zh)
Inventor
李乐义
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努比亚技术有限公司
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Publication of WO2017113873A1 publication Critical patent/WO2017113873A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/95—Computational photography systems, e.g. light-field imaging systems
    • H04N23/951—Computational photography systems, e.g. light-field imaging systems by using two or more images to influence resolution, frame rate or aspect ratio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay

Definitions

  • the present invention relates to image processing technologies in the field of terminals, and in particular, to an image synthesis method, apparatus, and computer storage medium.
  • the terminal has various functions such as a telephone, a camera, a video recorder, and a music player.
  • the image taken by the camera function of the terminal has a good effect, only the shooting of the real-time scene can be realized. If the user wants a picture of a character and does not want to be photographed in an immersive way, he or she can only use a manual map to make a puzzle, for example, taking a picture of a character and then cutting the person with the user's finger or a touch pen. The cut characters are stitched into the landscape to get the pictures that the user needs.
  • embodiments of the present invention are expected to provide an image synthesizing method, apparatus, and computer storage medium.
  • an embodiment of the present invention provides an image synthesizing method, including:
  • the person information is synthesized on the background picture to obtain a composite picture.
  • the acquiring the background image by using the voice control method includes:
  • the acquiring the background image according to the voice information includes:
  • the background image is acquired in a preset image library according to the correspondence between the keyword and the picture.
  • the acquiring the background image in the preset image library according to the correspondence between the keyword and the image including:
  • the acquiring the background image according to the voice information includes:
  • the background image corresponding to the keyword is captured from the network by using a crawler program.
  • the capturing, by the crawler, the background image corresponding to the keyword from the network includes:
  • the picture confirmed by the user is taken as the background picture.
  • the extracting the character information from the character image includes:
  • the person information is extracted by using a channel extraction technique.
  • the solid color background is a blue background
  • the extracting the character information by using a channel extraction technology includes:
  • the character information is extracted using a blue screen technology.
  • the method further includes:
  • the weather information and/or the location information is added to the composite picture.
  • the method further includes:
  • an image synthesizing apparatus including:
  • a shooting unit configured to capture a portrait of a person on a solid background
  • An extracting unit configured to extract character information from the character image
  • the first obtaining unit is configured to obtain a background image by using a voice control manner
  • a synthesizing unit configured to synthesize the character information on the background image to obtain a composite picture.
  • the first acquiring unit is configured to:
  • the first acquiring unit is configured to:
  • the background image is acquired in a preset image library according to the correspondence between the keyword and the picture.
  • the first acquiring unit is configured to:
  • the first acquiring unit is configured to:
  • the background image corresponding to the keyword is captured from the network by using a crawler program.
  • the first acquiring unit is configured to:
  • the picture confirmed by the user is taken as the background picture.
  • the extracting unit is configured to:
  • the person information is extracted by using a channel extraction technique.
  • the device further includes:
  • a second acquiring unit configured to acquire weather information and/or location information of a geographic location corresponding to the current background image
  • An adding unit configured to add the weather information and/or the location information to the composite picture.
  • the adding unit is further configured to save or share the composite picture.
  • an embodiment of the present invention provides a computer storage medium, where the computer storage medium includes a set of instructions that, when executed, cause at least one processor to execute the image synthesis method described above.
  • Embodiments of the present invention provide an image synthesizing method, apparatus, and computer storage medium, which captures a character image in a solid color background; extracts character information from the character image; acquires a background image by using a voice control method; and synthesizes the character information On the background image, get a composite image sheet.
  • the background image is taken in a solid color background, the background is relatively simple, and the background can be deleted by intelligent image processing technology, and the character information is extracted, so that the outline of the character information is high and will not be lost.
  • the details of the characters, the composite picture is more natural, and the user experience is better.
  • FIG. 1 is a schematic structural diagram of hardware of a mobile terminal that can be implemented in an embodiment of the present invention
  • FIG. 2 is a schematic flowchart 1 of an image synthesizing method according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart 2 of an image synthesizing method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram 1 of an image synthesizing apparatus according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram 2 of an image synthesizing apparatus according to an embodiment of the present invention.
  • the mobile terminal can be implemented in various forms.
  • the terminals described in the present invention may include, for example, mobile phones, smart phones, notebook computers, digital broadcast receivers, personal digital assistants (PDAs), tablet computers (PADs), portable multimedia players (PMPs), navigation devices, and the like.
  • Mobile terminals and fixed terminals such as digital TVs, desktop computers, and the like.
  • the terminal is a mobile terminal.
  • the configuration according to an embodiment of the present invention can be applied to a fixed type in addition to an element particularly for moving purposes. terminal.
  • FIG. 1 is a schematic diagram showing the hardware structure of a mobile terminal that can be implemented in various embodiments of the present invention. As shown in FIG. 1, the mobile terminal includes:
  • the A/V input unit 120 is configured to receive an audio or video signal.
  • the A/V input unit 120 may include a camera 121 and a microphone 122 that processes image data of still pictures or video obtained by the image capturing device in a video capturing mode or an image capturing mode.
  • the processed image frame can be displayed on the display unit 151.
  • the image frames processed by the camera 121 may be stored in the memory 160 (or other storage medium), and two or more cameras 121 may be provided according to the configuration of the mobile terminal.
  • the microphone 122 can receive sound (audio data) via a microphone in an operation mode of a telephone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound as audio data.
  • the user input unit 130 may generate key input data according to a command input by the user to control various operations of the mobile terminal.
  • the user input unit 130 allows the user to input various types of information, and may include a keyboard, a pot, a touch pad (eg, a touch sensitive component that detects changes in resistance, pressure, capacitance, etc. due to contact), a scroll wheel , rocker, etc.
  • a touch screen can be formed.
  • Output unit 150 is configured to provide an output signal (eg, an audio signal, a video signal, an alarm signal, a vibration signal, etc.) in a visual, audio, and/or tactile manner.
  • the output unit 150 may include a display unit 151.
  • the display unit 151 can display information processed in the mobile terminal 100. For example, when the mobile terminal 100 is in a phone call mode, the display unit 151 can display a user interface (UI) or a graphical user interface (GUI) related to a call or other communication (eg, text messaging, multimedia file download, etc.). When the mobile terminal 100 is in a video call mode or an image capturing mode, the display unit 151 may display a captured image and/or a received image, a UI or GUI showing a video or image and related functions, and the like.
  • UI user interface
  • GUI graphical user interface
  • the display unit 151 can function as an input device and an output device.
  • the display unit 151 may include at least one of a liquid crystal display (LCD), a thin film transistor LCD (TFT-LCD), an organic light emitting diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like.
  • LCD liquid crystal display
  • TFT-LCD thin film transistor LCD
  • OLED organic light emitting diode
  • a flexible display a three-dimensional (3D) display, and the like.
  • 3D three-dimensional
  • Some of these displays may be configured to be transparent to allow a user to view from the outside, which may be referred to as a transparent display, and a typical transparent display may be, for example, a TOLED (Transparent Organic Light Emitting Diode) display or the like.
  • TOLED Transparent Organic Light Emitting Diode
  • the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown) .
  • the touch screen can be configured to detect touch input pressure as well as touch input position and touch input area.
  • the memory 160 may store a software program or the like that performs processing and control operations performed by the controller 180, or may temporarily store data (for example, a phone book, a message, a still image, a video, and the like) that has been output or is to be output. Moreover, the memory 160 can store data regarding vibrations and audio signals of various manners that are output when a touch is applied to the touch screen.
  • the memory 160 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (eg, SD or DX memory, etc.), a random access memory (RAM), a static random access memory ( SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk, optical disk, and the like.
  • the mobile terminal 100 can cooperate with a network storage device that performs a storage function of the memory 160 through a network connection.
  • the controller 180 typically controls the overall operation of the mobile terminal. For example, the controller 180 performs the control and processing associated with voice calls, data communications, video calls, and the like.
  • the power supply unit 190 receives external power or internal power under the control of the controller 180 and provides appropriate power required to operate the various components and components.
  • the various embodiments described herein can be used, for example, in computer software, hardware, or any of them.
  • the combined computer readable medium is implemented.
  • the embodiments described herein may be through the use of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays ( An FPGA, a processor, a controller, a microcontroller, a microprocessor, at least one of the electronic units designed to perform the functions described herein, in some cases, such an embodiment may be at the controller 180 Implemented in the middle.
  • implementations such as procedures or functions may be implemented with separate software modules that permit the execution of at least one function or operation.
  • the software code can be implemented by a software application (or program) written in any suitable programming language, which can be stored in memory
  • the mobile terminal has been described in terms of its function.
  • a slide type mobile terminal among various types of mobile terminals such as a folding type, a bar type, a swing type, a slide type mobile terminal, and the like will be described as an example. Therefore, the present invention can be applied to any type of mobile terminal, and is not limited to a slide type mobile terminal.
  • the mobile terminal 100 as shown in FIG. 1 may be configured to operate using a communication system such as a wired and wireless communication system and a satellite-based communication system that transmits data via frames or packets.
  • a communication system such as a wired and wireless communication system and a satellite-based communication system that transmits data via frames or packets.
  • the embodiment of the present invention provides an image synthesizing method, which is applied to a terminal.
  • the terminal may be a mobile phone, a smart phone, a tablet computer, etc., which is not limited in this embodiment of the present invention.
  • the image synthesis method includes:
  • Step 201 Shoot a character image on a solid color background.
  • the background color can not be selected in principle.
  • the commonly used background colors are green and blue. The reason is that the natural color of the human body does not contain these two colors, with green and blue. The background will not be mixed with the characters. If the clothes in front of the scene are green, use a blue background. If the clothes are blue, use a green background. At the same time, the green and blue colors are still two of the primary colors in the system, which is also easier to handle.
  • Step 202 Extract character information from the character image.
  • person information may be extracted using Matt Extraction, which may also be referred to as an image.
  • Matt Extraction which may also be referred to as an image.
  • Many film and television works can extract the foreground information of the pictures taken in the studio under the solid color background through the channel extraction technology, and synthesize the pictures taken with the exterior scene to create a more exciting picture effect.
  • Blue Screen is the most important method for channel extraction.
  • the blue screen technology is to take a picture of a person on a blue background, and then use the difference of chromaticity to remove the monochrome background and get the character. Information, so the blue screen technology has a scientific name called Chroma Keying.
  • the background of the key is selected in blue.
  • the software commonly used in the blue screen technology is AE (After Effect), which is a video editing and design software developed by Adobe, and is a professional non-linear editing software for video post-synthesis processing.
  • Step 203 Acquire a background image by using a voice control manner.
  • the user may send voice information to the terminal, where the voice information includes keywords related to the background picture required by the user, such as the composition of the scene, the elements appearing in the background picture, the name of the scenic spot, etc.
  • the terminal After receiving the voice information, the keyword related to the background image may be obtained by extracting the information, and then the background image that meets the requirement is obtained according to the keyword.
  • the correspondence between the keyword and the picture may be preset in the terminal during initialization, and the correspondence may be as shown in Table 1:
  • the picture corresponding to the “mobile phone” should be the picture C of the smart phone on the image, and then The picture C is displayed on the screen for the user to confirm. If the user determines that the picture C meets the requirements, the picture C can be used as a background picture.
  • the crawler program may also be used to retrieve keywords related to keywords from the network for selection by the user. For example, when the keyword extracted by the terminal from the voice information sent by the user is “mobile phone”, the terminal crawls all the pictures related to “mobile phone” from the network through the crawler program, and then displays the captured picture in turn. On the screen, for the user to confirm. If the user determines that an image meets the requirements, the selected image of the user can be used as the background image.
  • Step 204 Synthesize the character information on the background picture to obtain a composite picture.
  • the background picture acquired and meeting the user's needs is analyzed to obtain an optimal composition scheme, and then the acquired character information is synthesized on the background picture according to an optimal composition scheme to obtain a composite picture.
  • current weather information of the geographic information corresponding to the background image may also be acquired, and then the weather information and/or the location information is added to the composite picture.
  • the background image is the Badaling Great Wall.
  • the feeling of the Badaling Great Wall may also be added to the composite image, where the location information may be location information of a geographic location corresponding to the background image. For example, you can place a letter on the location of the Badaling Great Wall.
  • the information is added to the composite picture, and the location information of the Badaling Great Wall may be identified by latitude and longitude, or may be identified by a Chinese character, which is not limited by the embodiment of the present invention.
  • the composite picture may be further beautified and edited after the composite picture is obtained. For example, add a filter for processing, or adjust the contrast or brightness of a composite image.
  • An embodiment of the present invention provides an image synthesizing method, including: capturing a character image in a solid color background; extracting character information from the character image; acquiring a background image by using a voice control method; and synthesizing the character information in the background On the picture, get a composite picture.
  • the background image is taken in a solid color background, the background is relatively simple, and the background can be deleted by intelligent image processing technology, and the character information is extracted, so that the outline of the character information is high and will not be lost.
  • the details of the characters, the composite picture is more natural, and the user experience is better.
  • An embodiment of the present invention provides an image synthesizing method, which is applied to a terminal, as shown in FIG. 3, and includes:
  • Step 301 The correspondence between the preset keyword and the picture is performed, and step 302 is performed.
  • the correspondence between the keyword and the picture can be referred to Table 1.
  • Step 302 Receive voice information input by the user, and perform step 303.
  • the basic features of the desired background image can be spoken against the microphone of the terminal.
  • the terminal determines that the user inputs the voice information when detecting that the microphone receives the sound signal.
  • Step 303 Extract the keyword of the voice information, and perform step 304.
  • a keyword database may be set in advance in the terminal, and the keyword database stores sound characteristics of each keyword, including phonetic symbols, tones, audio, and the like. After receiving the voice information sent by the user, the terminal compares the voice information with each keyword in the keyword database to extract keywords of the voice information.
  • Step 304 Select a picture corresponding to the keyword of the voice information according to the correspondence between the keyword and the picture, and perform step 305.
  • the picture corresponding to the “tulip” should be the picture B of the tulip field on the image.
  • Step 305 Display a picture corresponding to the keyword of the voice information on the display screen. If the user confirms that the picture meets the requirements, go to step 306. If the user confirms that the picture does not meet the requirements, go to step 311.
  • a picture B of the tulip field on the image corresponding to the "tulip” is displayed on the display, and then the user is prompted to confirm.
  • the prompt information is displayed, and the prompt information includes a “confirm” button and a “cancel” button. If the user thinks that the picture B meets the requirements, the user may click the “confirm” button, and the terminal confirms that the user thinks the picture. B meets the requirements; if the user thinks that picture B does not meet the requirements, you can click the “Cancel” button, and the terminal confirms that the user thinks that picture B does not meet the requirements.
  • Step 306 Capture a character image on a solid color background, and perform step 307.
  • a person image can be taken on a pure blue background to ensure that the character does not contain the blue of the background.
  • Step 307 Extract character information from the character image, and perform step 308.
  • the blue screen technology may be used to extract the character information, that is, the difference between the chromaticity between the person and the background on the captured person image, and the blue background is removed to obtain the character information.
  • Step 308 Synthesize the character information on the background picture to obtain a composite picture.
  • the background picture acquired and meeting the user's needs is analyzed to obtain an optimal composition scheme, and then the acquired character information is synthesized on the background picture according to an optimal composition scheme to obtain a composite picture.
  • the specific synthesis method is a prior art, and details are not described herein.
  • Step 309 Add weather information to the composite picture, and perform step 310.
  • weather information of the geographic location where the tulip field in the picture B is located may also be acquired, and then the weather information is added on the composite picture.
  • the “cloudy, 24-32 ° C” may be added to the lower right corner of the composite picture.
  • the location information of the geographic location where the tulip field in the picture B is located may also be added to the composite picture. Assuming that the location information of the geographic location where the tulip field is located is "east longitude 4 ° 21 ', north latitude 51 ° 45 '", the "east longitude 4 ° 21 ', north latitude 51 ° 45 '" may be added to the right of the composite picture Lower corner.
  • Step 310 Save or share the composite picture, and the process ends.
  • the composite picture may be saved in a memory of the terminal, or the composite picture may be shared, for example, sent to a WeChat friend circle, or sent to the microblog, which is in the embodiment of the present invention. This is not limited.
  • Step 311 The crawler program is used to capture a picture related to the keyword of the voice information from the network.
  • the crawler program can also be used to grab the relevant picture from the network, and then display the captured picture in turn, so that the user can confirm.
  • the reptile program is a prior art, and the embodiments of the present invention are not described herein.
  • steps 306-310 are continued to complete the synthesis of the picture.
  • the embodiment of the present invention provides an image synthesizing method. Compared with the prior art, since a person image is captured in a solid color background, the background is relatively simple, and the background can be deleted by an intelligent image processing technology to extract character information. The outline of the character information is high, and the details of the character are not lost. The composite picture is more natural and the user experience is better.
  • an embodiment of the present invention provides an image synthesizing device 40, which is located at a terminal, as shown in FIG. 4, and includes:
  • the photographing unit 401 is configured to photograph a person image on a solid color background.
  • the extracting unit 402 is configured to extract character information from the character image (the person information can be extracted by a channel extraction technique).
  • the first obtaining unit 403 is configured to acquire a background image by using a voice control manner.
  • the synthesizing unit 404 is configured to synthesize the person information on the background picture to obtain a composite picture.
  • the background image is taken in a solid color background
  • the background is relatively simple, and the background can be deleted by intelligent image processing technology, and the character information is extracted, so that the outline of the character information is high, and the character details are not lost.
  • the composite picture is more natural and the user experience is better.
  • the first obtaining unit 403 is specifically configured to: receive voice information input by the user; and acquire the background image according to the voice information.
  • the first obtaining unit 403 is specifically configured to: extract a keyword in the voice information; and acquire the background image in a preset image library according to a correspondence between the keyword and the image.
  • the first acquiring unit 403 is specifically configured to:
  • the first obtaining unit 403 is specifically configured to: extract a keyword in the voice information; according to the keyword, use a crawler program to fetch the background image corresponding to the keyword from a network .
  • the first acquiring unit 403 is specifically configured to:
  • the apparatus 40 may further include: a second obtaining unit 405 configured to acquire weather information and/or location information of a geographic location corresponding to the current background image; and adding unit 406 And configured to add the weather information and/or the location information to the composite picture.
  • the adding unit 406 is further configured to save or share the composite picture.
  • the extracting unit 402, the first obtaining unit 403, the synthesizing unit 404, the second obtaining unit 405, and the adding unit 406 may each be processed by a central processing unit (CPU) located in the image synthesizing device 40.
  • CPU central processing unit
  • MPU Micro Processor Unit
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • the photographing unit 401 is realized by a camera located in the image synthesizing device 40.
  • An embodiment of the present invention provides an image synthesizing apparatus, including: a photographing unit configured to photograph a person image in a solid color background.
  • An extracting unit configured to extract a person from the image of the person Information.
  • the first obtaining unit is configured to obtain a background image by using a voice control manner.
  • a synthesizing unit configured to synthesize the character information on the background image to obtain a composite picture.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the various components shown or discussed may be through some interface, device or unit.
  • the indirect coupling or communication connection can be electrical, mechanical or other form.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units; they may be located in one place or distributed on multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a removable storage device, a read only memory (ROM), a magnetic disk, or an optical disk, and the like, which can store program codes.
  • ROM read only memory
  • the above-described integrated unit of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a magnetic disk, or an optical disk.
  • an embodiment of the present invention provides a computer storage medium, where the computer storage medium includes a set of instructions that, when executed, cause at least one processor to perform the image synthesis method described in the embodiments of the present invention.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Telephone Function (AREA)
  • Image Processing (AREA)
  • Processing Or Creating Images (AREA)
  • Studio Devices (AREA)

Abstract

La présente invention concerne, dans un de ses modes de réalisation, un procédé de synthèse d'image, le procédé comportant les étapes consistant à: photographier une image de portrait sur un fond de couleur unie; extraire de l'image de portrait des informations sur le sujet du portrait; acquérir une image de fond en utilisant un procédé de commande vocale; synthétiser des informations sur le sujet du portrait avec l'image de fond et acquérir une image synthétisée. La présente invention concerne également, dans ce mode de réalisation, un dispositif de synthèse d'image et un support de stockage informatique.
PCT/CN2016/098207 2015-12-28 2016-09-06 Procédé et dispositif de synthèse d'image, et support de stockage informatique WO2017113873A1 (fr)

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