CN107333059A - A kind of photographic method and mobile terminal - Google Patents
A kind of photographic method and mobile terminal Download PDFInfo
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- CN107333059A CN107333059A CN201710493788.8A CN201710493788A CN107333059A CN 107333059 A CN107333059 A CN 107333059A CN 201710493788 A CN201710493788 A CN 201710493788A CN 107333059 A CN107333059 A CN 107333059A
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/61—Control of cameras or camera modules based on recognised objects
- H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
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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
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
- G06V40/165—Detection; Localisation; Normalisation using facial parts and geometric relationships
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Abstract
The present invention provides a kind of photographic method and mobile terminal, is related to communication technical field, to solve to need to look at screen during shooting photo in the prior art and adjust the position of mobile terminal, not intelligentized enough problem.This method includes：The direction of visual lines of user is obtained by first camera；The shooting direction of the second camera is adjusted according to the direction of visual lines, so that the shooting direction of the second camera is consistent with the direction of visual lines；Receive photographing instruction；Shot according to the photographing instruction.Mobile terminal can obtain the direction of visual lines of user, and the shooting direction of second camera can be adjusted according to the direction of visual lines of user, make the shooting direction of second camera consistent with the direction of visual lines of user.And then ensure that the image of the second camera institute preview of mobile terminal is the scene that user is seen, the scene finally seen to user is shot.The position of mobile terminal need not be frequently adjusted when shooting, it is convenient and swift.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of photographic method and mobile terminal.
Background technology
With the progress of science and technology, mobile terminal is increasingly popularized, and the function that mobile terminal possesses is increasingly
Variation.For example, audio-frequency function, camera function, camera function and store function etc. all have become the indispensable work(of mobile terminal
Energy.
In the prior art, user when being shot, it is necessary to the camera of mobile terminal is aligned into the object to be shot, and
And captured object is observed by the screen of mobile terminal, and then focused.When to shoot multiple different objects,
Need frequently to adjust the position of mobile terminal, it is very inconvenient.Therefore, in the prior art, need to see during shooting photo
Screen and adjust the position of mobile terminal and shot, shooting process is not intelligent enough.
The content of the invention
The embodiment of the present invention provides a kind of photographic method and mobile terminal, to solve the process for shooting photo in the prior art
The middle position for needing to look at screen and adjust mobile terminal, not intelligentized enough problem.
In a first aspect, the embodiments of the invention provide a kind of photographic method, applied to mobile terminal, the mobile terminal tool
There are shooting direction opposite the first camera and second camera, the shooting direction of the second camera is adjustable, this method bag
Include：
The direction of visual lines of user is obtained by first camera；
The shooting direction of the second camera is adjusted according to the direction of visual lines, so that the shooting of the second camera
Direction is consistent with the direction of visual lines；
Receive photographing instruction；
Shot according to the photographing instruction.
Second aspect, the embodiment of the present invention also provides a kind of mobile terminal, and the mobile terminal has shooting direction opposite
The first camera and second camera, the shooting direction of the second camera is adjustable, including：
Acquisition module, the direction of visual lines for obtaining user by first camera；
Adjusting module, the direction of visual lines for being got according to the acquisition module adjusts the shooting of the second camera
Direction, so that the shooting direction of the second camera is consistent with the direction of visual lines；
Receiving module, for receiving photographing instruction；
Taking module, the photographing instruction for being received according to the receiving module is shot.
The third aspect, the embodiment of the present invention also provides a kind of mobile terminal, including processor, memory and is stored in described
On memory and the control program of taking pictures that can run on the processor, the control program of taking pictures is by the computing device
The step of Shi Shixian above-mentioned photographic methods.
So, in the embodiment of the present invention, the direction of visual lines of user is obtained by first camera；According to the sight
Direction adjusts the shooting direction of the second camera, so that the shooting direction of the second camera and the direction of visual lines one
Cause；Receive photographing instruction；Shot according to the photographing instruction.Mobile terminal can obtain the direction of visual lines of user, and
The shooting direction of second camera can be adjusted according to the direction of visual lines of user, makes shooting direction and the user of second camera
Direction of visual lines is consistent.And then ensure that the image of the second camera institute preview of mobile terminal is the scene that user is seen,
The final scene seen to user is shot.The position of mobile terminal need not be frequently adjusted when shooting, it is convenient fast
It is prompt.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed for description of the embodiment of the present invention
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention,
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of flow chart of photographic method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another photographic method provided in an embodiment of the present invention；
Fig. 3 is a kind of structure chart of mobile terminal provided in an embodiment of the present invention；
Fig. 4 is the structure chart of another mobile terminal provided in an embodiment of the present invention；
Fig. 5 is the structure chart of another mobile terminal provided in an embodiment of the present invention；
Fig. 6 is the structure chart of another mobile terminal provided in an embodiment of the present invention；
Fig. 7 is the structure chart of another mobile terminal provided in an embodiment of the present invention；
Fig. 8 is the structure chart of another mobile terminal provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is a kind of flow chart of photographic method provided in an embodiment of the present invention, applied to mobile terminal, institute
Stating mobile terminal has opposite the first camera and second camera of shooting direction, and the shooting direction of the second camera can
Adjust.As shown in figure 1, comprising the following steps：
Step 101, the direction of visual lines by first camera acquisition user.
Mobile terminal in the present invention can possess opposite the first camera and second camera of shooting direction, and second
The shooting direction of camera is adjustable.I.e. mobile terminal can possess two cameras, respectively front camera and rearmounted shooting
Head, and the rear camera of mobile terminal can rotate freely.
In a step 101, user can be with the second camera of manual unlocking mobile terminal, i.e. rear camera.This time shift
First camera of dynamic terminal can just be automatically turned on, i.e., front camera can just be automatically turned on.In shooting process, it is mobile
The screen of terminal wants the first camera of user oriented face, i.e. mobile terminal to want user oriented face.Namely it is mobile whole
The front camera at end wants user oriented face.
Gyroscope built in mobile terminal and acceleration of gravity instrument, can determine to move by gyroscope and acceleration of gravity instrument
The direction of terminal.The face image of user can be got by the front camera of mobile terminal.According to the court of mobile terminal
The direction of visual lines of user is assured that to the face image with the user got.
Mobile terminal can determine left face image and right face image in the face image of user, and then can calculate
Go out the area of left face image and the area of right face image.
For example：If the area of left face image is equal to the area of right face image, illustrate the screen of now mobile terminal
Angle value between the face of user is 0 degree, i.e., now the screen of mobile terminal is the face for facing user.
If the ratio of the area of left face image and the area of right face image is 1:2, i.e., the area of right face image
It is twice of the area of left face image, illustrates that angle value now between the screen of mobile terminal and the face of user is 45
Degree, and mobile terminal relativelys close to the right side face of user.
Just can be true according to the angle value between the face of the screen and user of the direction of mobile terminal and mobile terminal
Determine face's direction of user.
Mobile terminal can also determine eye contour area image in the face image of user, and determine the pupil of user
Position in eye contour area image.The eye contour area image approximate of user is elliptical image, and the pupil of user exists
Position in eye contour area image can be divided into three kinds of situations：Left lateral position of the pupil of user in eye contour area image
Put, illustrate that the sight of now user is to the left, i.e., user is watching the scenery of left front；The pupil of user is in eye contour area
The middle position of image, illustrates that now user is watching the scenery in front；The pupil of user is in eye contour area image
Right positions, illustrate that the sight of now user is to the right, i.e., user is watching the scenery of right front.
Determine the face of user towards and position of the pupil in eye contour area image of user after, so that it may
To determine the direction of visual lines of user.
Step 102, the shooting direction according to the direction of visual lines adjustment second camera, so that second shooting
The shooting direction of head is consistent with the direction of visual lines.
In a step 102, it is determined that the direction of visual lines of user, the bat of second camera can be adjusted according to the direction of visual lines
Direction is taken the photograph, so that the shooting direction of second camera is consistent with above-mentioned direction of visual lines.The rearmounted of mobile terminal can be controlled to take the photograph
As the camera lens direction and the direction of visual lines one of user of the direction of visual lines of head steering user, the now rear camera of mobile terminal
Cause.And then picture to be captured can be obtained using the rear camera for the direction of visual lines for turning to user.
It should be noted that in shooting process, the front camera of mobile terminal can be with the face of user in real
Image, and then mobile terminal can determine the direction of visual lines of user according to the face image of the user got in real time, so that real
When control mobile terminal rear camera turn to user direction of visual lines, you can to ensure the rear camera institute of mobile terminal
The image of preview is the scene that user is seen, reaches the effect of real-time update.
Step 103, reception photographing instruction.
In step 103, get after picture to be captured, mobile terminal can detect whether to receive photographing instruction.
Step 104, shot according to the photographing instruction.
At step 104, if mobile terminal receives photographing instruction, it is possible to drawn according to the photographing instruction to be captured
Face is shot.
For example, if the eyes that the front camera of mobile terminal detects user continuously blink twice, mobile terminal is just
Photographing instruction can be received, and then mobile terminal can treat shooting picture according to the photographing instruction and be shot.Take pictures completion
Afterwards, user can with the rear camera of manual-lock mobile terminal, meanwhile, the front camera of mobile terminal can be closed automatically.
In the embodiment of the present invention, above-mentioned mobile terminal can any possess the first opposite camera of shooting direction and the
The mobile terminal of two cameras, and the shooting direction of second camera is adjustable.For example：Mobile phone, tablet personal computer (Tablet
Personal Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital
Assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device, MID) or wearable device
(Wearable Device) etc..
The photographic method of the embodiment of the present invention, applied to mobile terminal, the mobile terminal has shooting direction opposite
First camera and second camera, the shooting direction of the second camera is adjustable.Obtained and used by first camera
The direction of visual lines at family；The shooting direction of the second camera is adjusted according to the direction of visual lines, so that the second camera
Shooting direction it is consistent with the direction of visual lines；Receive photographing instruction；Shot according to the photographing instruction.Mobile terminal can
To obtain the direction of visual lines of user, and the shooting direction of second camera can be adjusted according to the direction of visual lines of user, make the
The shooting direction of two cameras is consistent with the direction of visual lines of user.And then ensure that the second camera institute preview of mobile terminal
Image is the scene that user is seen, the scene finally seen to user is shot.Need not be frequently when shooting
The position of mobile terminal is adjusted, it is convenient and swift.
Referring to Fig. 2, Fig. 2 is the flow chart of another photographic method provided in an embodiment of the present invention, applied to mobile terminal.
The mobile terminal has opposite the first camera and second camera of shooting direction, the shooting direction of the second camera
It is adjustable.The difference of the present embodiment and previous embodiment is to obtaining the angle between the screen of mobile terminal and the face of user
The process of angle value is elaborated.As shown in Fig. 2 comprising the following steps：
Step 201, the face image by first camera acquisition user.
Mobile terminal in the present invention can possess opposite the first camera and second camera of shooting direction, and second
The shooting direction of camera is adjustable.I.e. mobile terminal can possess two cameras, respectively front camera and rearmounted shooting
Head, and the rear camera of mobile terminal can rotate freely.
In step 201, user can be with the second camera of manual unlocking mobile terminal, i.e. rear camera.This time shift
First camera of dynamic terminal can just be automatically turned on, i.e., front camera can just be automatically turned on.In shooting process, it is mobile
The screen of terminal wants the first camera of user oriented face, i.e. mobile terminal to want user oriented face.Namely it is mobile whole
The front camera at end wants user oriented face, and the face that can get user by the front camera of mobile terminal schemes
Picture.
Step 202, the left face image and right face image determined in the face image of the user.
In step 202., get after the face image of user, mobile terminal can be determined in the face image of user
Left face image and right face image.
Step 203, the area for calculating the left face image, calculate the area of the right face image.
In step 203, it is determined that after the left face image and right face image in the face image of user, it is mobile whole
End can calculate the area of left face image and the area of right face image.
The area of step 204, the area according to the left face image and the right face image determines target proportion system
Number.
In step 204, after mobile terminal calculates the area of left face image and the area of right face image, so that it may
Target proportion coefficient is determined with the area of the area according to left face image and right face image.
Step 205, determined between the screen of the mobile terminal and the face of user according to the target proportion coefficient
Angle value.
In step 205, after mobile terminal determines target proportion coefficient, it is possible to true according to the target proportion coefficient
Determine the angle value between the screen of mobile terminal and the face of user, wherein, the user oriented face of screen of mobile terminal.
Optionally, it is described that target proportion is determined according to the area of the left face image and the area of the right face image
Coefficient, including：
(1) if the area of the left face image is less than or equal to the area of the right face image, using following
Formula determines the target proportion coefficient：
Wherein, a is the target proportion coefficient, SA left side 1For the area of the left face image, SThe right side 1For the right face image
Area；
It is described that the angle value is determined according to the target proportion coefficient, including：
The angle value is determined using below equation：
- 90 ° of α=90 ° × a
Wherein, α is the angle value, and a is the target proportion coefficient.
When the area of left face image is less than or equal to the area of right face image, then mesh is determined using below equation
Mark proportionality coefficient：
Wherein, a is target proportion coefficient, SA left side 1For the area of left face image, SThe right side 1For the area of right face image.
For example, working as SA left side 1When=0,
After being determined target proportion coefficient, it is possible to the screen of mobile terminal and the face of user are determined using below equation
Angle value between portion：
- 90 ° of α=90 ° × a
Wherein, α is the angle value between the screen of mobile terminal and the face of user, and a is target proportion coefficient.
As a=0, -90 ° of α=90 ° × a=90 ° -90 ° × 0=90 °, the i.e. now screen of mobile terminal and user
Angle value between face is 90 °.
(2) if the area of the left face image is more than the area of the right face image, determined using below equation
The target proportion coefficient：
Wherein, b is the target proportion coefficient, SA left side 2For the area of the left face image, SThe right side 2For the right face image
Area；
It is described that the angle value is determined according to the target proportion coefficient, including：
The angle value is determined using below equation：
- 90 ° of β=90 ° × b
Wherein, β is the angle value, and b is the target proportion coefficient.
When the area of left face image is more than the area of right face image, then target proportion system is determined using below equation
Number：
Wherein, b is target proportion coefficient, SA left side 2For the area of left face image, SThe right side 2For the area of right face image.
For example, when the area of left face image is twice of the area of right face image,
After being determined target proportion coefficient, it is possible to the screen of mobile terminal and the face of user are determined using below equation
Angle value between portion：
- 90 ° of β=90 ° × b
Wherein, β is the angle value between the screen of mobile terminal and the face of user, and b is target proportion coefficient.
As b=0.5, -90 ° of β=90 ° × b=90 ° -90 ° × 0.5=45 °, the i.e. now screen and use of mobile terminal
Angle value between the face at family is 45 °.
Step 206, the face's direction for determining according to the angle value user.
In step 206, it is determined that after the angle value between the screen of mobile terminal and the face of user, in conjunction with shifting
The direction of dynamic terminal is assured that face's direction of user.
For example, as it was previously stated, working as SA left side 1When=0, it may be determined that the angle between the screen of mobile terminal and the face of user
It is worth for 90 °, and due to SA left side 1=0, therefore now the screen of mobile terminal faces the right side face of user, namely use is determined
Face's direction at family.
When the area of left face image is twice of the area of right face image, it may be determined that the screen of mobile terminal with
Angle value between the face of user is 45 °, and because the area of left face image is more than the area of right face image, therefore this
When mobile terminal screen relatively close to the left side face of user, namely face's direction of user is determined.
Step 207, the determination eye contour area image in the face image of the user, and determine that the pupil of user exists
Position in the eye contour area image.
In step 207, mobile terminal can also determine eye contour area image in the face image of user, and really
Determine position of the pupil of user in eye contour area image.The eye contour area image approximate of user is elliptical image,
Position of the pupil of user in eye contour area image can be divided into three kinds of situations：The pupil of user is in eye contour area
The leftward position of image, illustrates that the sight of now user is to the left, i.e., user is watching the scenery of left front；The pupil of user exists
The middle position of eye contour area image, illustrates that now user is watching the scenery in front；The pupil of user is in eye
The right positions of contour area image, illustrate that the sight of now user is to the right, i.e., user is watching the scenery of right front.
The pupil of step 208, face's direction according to the user and the user is in the eye contour area image
In position, determine the direction of visual lines of the user.
In a step 208, it is determined that face's direction of user and the pupil of user are in eye contour area image
After position, it is possible to determine the direction of visual lines of user.
Step 209, the shooting direction according to the direction of visual lines adjustment second camera, so that second shooting
The shooting direction of head is consistent with the direction of visual lines.
In step 209, it is determined that the direction of visual lines of user, the bat of second camera can be adjusted according to the direction of visual lines
Direction is taken the photograph, so that the shooting direction of second camera is consistent with above-mentioned direction of visual lines.The rearmounted of mobile terminal can be controlled to take the photograph
As the camera lens direction and the direction of visual lines one of user of the direction of visual lines of head steering user, the now rear camera of mobile terminal
Cause.
Control after the rear camera of mobile terminal turns to the direction of visual lines of user, it is possible to using turning to regarding for user
The rear camera in line direction obtains picture to be captured.
It should be noted that in shooting process, the front camera of mobile terminal can be with the face of user in real
Image, and then mobile terminal can determine the direction of visual lines of user according to the face image of the user got in real time, so that real
When control mobile terminal rear camera turn to user direction of visual lines, you can to ensure the rear camera institute of mobile terminal
The image of preview is the scene that user is seen, reaches the effect of real-time update.
If the eyes that step 2010, first camera detect user continuously blink repeatedly, taken pictures described in reception
Instruction.
In step 2010, get after picture to be captured, mobile terminal can detect whether to receive photographing instruction.
For example, if the eyes that the front camera of mobile terminal detects user continuously blink repeatedly, mobile terminal can just be received
To photographing instruction.
Step 2011, shot according to the photographing instruction.
In step 2011, if mobile terminal receives photographing instruction, it is possible to according to the photographing instruction to be captured
Picture is shot.After the completion of taking pictures, user can with the rear camera of manual-lock mobile terminal, meanwhile, mobile terminal
Front camera can be closed automatically.
Mobile terminal can obtain the face image of user, and then determine user according to the face image of the user got
Face towards and user position of the pupil in eye contour area image.Then using user face towards and
Position of the pupil of user in eye contour area image determines the direction of visual lines of user.Adjusted according to the direction of visual lines of user
The shooting direction of second camera, makes the shooting direction of second camera consistent with the direction of visual lines of user.Finally determine to wait to clap
Picture is taken the photograph, and treats shooting picture and is shot.In shooting process, the rear camera of mobile terminal can turn to use in real time
The direction of visual lines at family, you can to ensure that the image of the rear camera institute preview of mobile terminal is the scene that user is seen.
User need not frequently adjust the position of mobile terminal, it is not necessary to manual focus, realize automation and take pictures, convenient and swift.
Referring to Fig. 3, Fig. 3 is the structure chart for the mobile terminal that the present invention implements offer, and the mobile terminal has shooting side
To the first opposite camera and second camera, the shooting direction of the second camera is adjustable.As shown in figure 3, mobile whole
End 300 includes acquisition module 301, adjusting module 302, receiving module 303 and taking module 304, wherein：
Acquisition module 301, the direction of visual lines for obtaining user by first camera；
Adjusting module 302, the direction of visual lines for being got according to the acquisition module 301 adjusts the second camera
Shooting direction so that the shooting direction of the second camera is consistent with the direction of visual lines；
Receiving module 303, for receiving photographing instruction；
Taking module 304, the photographing instruction for being received according to the receiving module 303 is shot.
Optionally, as shown in figure 4, acquisition module 301 includes：
First acquisition submodule 3011, the face image for obtaining user by first camera；
First determination sub-module 3012, for face's figure of the user got according to first acquisition submodule 3011
Face's direction as determining user；
Second determination sub-module 3013, for the face image of the user got in first acquisition submodule 3011
Middle determination eye contour area image, and determine position of the pupil of user in the eye contour area image；
3rd determination sub-module 3014, the court of face for the user according to determined by first determination sub-module 3012
To position of the pupil with user determined by second determination sub-module 3013 in the eye contour area image, really
The direction of visual lines of the fixed user.
Optionally, as shown in figure 5, the first determination sub-module 3012 includes：
First determining unit 30121, for face's figure of the user got according to first acquisition submodule 3011
As determining the angle value between the screen of the mobile terminal and the face of user；
Second determining unit 30122, user is determined for the angle value according to determined by first determining unit 30121
Face's direction.
Optionally, as shown in fig. 6, the first determining unit 30121 includes：
First determination subelement 301211, the face for determining the user that first acquisition submodule 3011 is got
Left face image and right face image in image；
Computation subunit 301212, for calculating left face image determined by first determination subelement 301211
Area, calculates the area of right face image determined by first determination subelement 301211；
Second determination subelement 301213, for the left face image calculated according to the computation subunit 301212
Area and the area of the right face image determine target proportion coefficient；
3rd determination subelement 301214, for the target proportion according to determined by second determination subelement 301213
Coefficient determines the angle value.
Optionally, second determination subelement 301213 specifically for：
If the area of the left face image is less than or equal to the area of the right face image, below equation is utilized
Determine the target proportion coefficient：
Wherein, a is the target proportion coefficient, SA left side 1For the area of the left face image, SThe right side 1For the right face image
Area；
3rd determination subelement 301214 specifically for：
The angle value is determined using below equation：
- 90 ° of α=90 ° × a
Wherein, α is the angle value, and a is the target proportion coefficient.
Optionally, second determination subelement 301213 specifically for：
If the area of the left face image is more than the area of the right face image, determined using below equation described
Target proportion coefficient：
Wherein, b is the target proportion coefficient, SA left side 2For the area of the left face image, SThe right side 2For the right face image
Area；
3rd determination subelement 301214 specifically for：
The angle value is determined using below equation：
- 90 ° of β=90 ° × b
Wherein, β is the angle value, and b is the target proportion coefficient.
Optionally, receiving module 303 specifically for：
If the eyes that first camera detects user continuously blink repeatedly, the photographing instruction is received.
Mobile terminal 300 can realize each process that mobile terminal is realized in Fig. 1 and Fig. 2 embodiment of the method, to keep away
Exempt to repeat, repeat no more here.And mobile terminal 300 can obtain the face image of user, and then according to the user got
Face image determine the face of user towards and user position of the pupil in eye contour area image.Then utilize
The position of face's direction of user and the pupil of user in eye contour area image determines the direction of visual lines of user, finally
Picture to be captured is determined according to the direction of visual lines of user, and treats shooting picture to be shot.In shooting process, mobile terminal
Rear camera can turn to the direction of visual lines of user in real time, you can to ensure the rear camera institute preview of mobile terminal
Image is the scene that user is seen.User need not frequently adjust the position of mobile terminal, it is not necessary to manual focus, real
Show automation to take pictures, it is convenient and swift.
Referring to Fig. 7, Fig. 7 is the structure chart of mobile terminal provided in an embodiment of the present invention, as shown in fig. 7, mobile terminal 700
Including：At least one processor 701, memory 702, at least one network interface 704, user interface 703 and CCD camera assembly
705 and the control program of taking pictures that can be run on memory 702 and on processor 701 is stored in, control program of taking pictures is processed
The step of device 701 realizes above-mentioned photographic method when performing.Each component in mobile terminal 700 is coupled by bus system 706
Together.It is understood that bus system 706 is used to realize the connection communication between these components.Bus system 706, which is removed, includes data
Outside bus, in addition to power bus, controlling bus and status signal bus in addition.But for the sake of clear explanation, in the figure 7 will
Various buses are all designated as bus system 706.
Wherein, user interface 703 can include display, keyboard or pointing device (for example, mouse, trace ball
(track ball), touch-sensitive plate or touch-screen etc..
It is appreciated that the memory 702 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
Or may include both volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read-only storage (Read-
Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable
Device (Erasable PROM, EPROM), Electrically Erasable Read Only Memory (Electrically EPROM, EEPROM) or
Flash memory.Volatile memory can be random access memory (Random Access Memory, RAM), and it is used as outside high
Speed caching.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static RAM
(Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory
(Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate
SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links
Dynamic random access memory (Synchlink DRAM, SLDRAM) and direct rambus random access memory (Direct
Rambus RAM, DRRAM).The memory 702 of system and method described herein be intended to including but not limited to these and it is any its
It is adapted to the memory of type.
In some embodiments, memory 702 stores following element, can perform module or data structure, or
Their subset of person, or their superset：Operating system 7021 and application program 7022.
Wherein, operating system 7021, comprising various system programs, such as ccf layer, core library layer, driving layer, are used for
Realize various basic businesses and handle hardware based task.Application program 7022, includes various application programs, such as media
Player (Media Player), browser (Browser) etc., for realizing various applied business.Realize the embodiment of the present invention
The program of method may be embodied in application program 7022.
In embodiments of the present invention, by calling program or the instruction of the storage of memory 702, specifically, can be application
The program stored in program 7022 or instruction, processor 701 are used for：
The direction of visual lines of user is obtained by first camera；
The shooting direction of the second camera is adjusted according to the direction of visual lines, so that the shooting of the second camera
Direction is consistent with the direction of visual lines；
Receive photographing instruction；
Shot according to the photographing instruction.
The method that the embodiments of the present invention are disclosed can apply in processor 701, or be realized by processor 701.
Processor 701 is probably a kind of IC chip, the disposal ability with signal.In implementation process, the above method it is each
Step can be completed by the integrated logic circuit of the hardware in processor 701 or the instruction of software form.Above-mentioned processing
Device 701 can be general processor, digital signal processor (Digital Signal Processor, DSP), special integrated electricity
Road (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field
Programmable Gate Array, FPGA) or other PLDs, discrete gate or transistor logic,
Discrete hardware components.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general
Processor can be microprocessor or the processor can also be any conventional processor etc..With reference to institute of the embodiment of the present invention
The step of disclosed method, can be embodied directly in hardware decoding processor and perform completion, or with the hardware in decoding processor
And software module combination performs completion.Software module can be located at random access memory, and flash memory, read-only storage may be programmed read-only
In the ripe storage medium in this area such as memory or electrically erasable programmable memory, register.The storage medium is located at
Memory 702, processor 701 reads the information in memory 702, the step of completing the above method with reference to its hardware.
It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its
Combine to realize.Realized for hardware, processing unit can be realized in one or more application specific integrated circuit (Application
Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing,
DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor,
In controller, microcontroller, microprocessor, other electronic units for performing herein described function or its combination.
Realize, can be realized by performing the module (such as process, function) of function described herein herein for software
Described technology.Software code is storable in memory and by computing device.Memory can within a processor or
Realized outside processor.
Optionally, processor 701 performs the direction of visual lines that user is obtained by first camera, including：
The face image of user is obtained by first camera；
Face's direction of user is determined according to the face image of the user；
Eye contour area image is determined in the face image of the user, and determines the pupil of user in the eye
Position in contour area image；
According to position of the pupil of face's direction of the user and the user in the eye contour area image,
Determine the direction of visual lines of the user.
Optionally, processor 701 performs face's direction that the face image according to the user determines user, bag
Include：
The angle value between the screen of the mobile terminal and the face of user is determined according to the face image of the user；
Face's direction of user is determined according to the angle value.
Optionally, processor 701 performs the screen that the face image according to the user determines the mobile terminal
Angle value between the face of user, including：
Determine the left face image and right face image in the face image of the user；
The area of the left face image is calculated, the area of the right face image is calculated；
Target proportion coefficient is determined according to the area of the area of the left face image and the right face image；
The angle value is determined according to the target proportion coefficient.
Optionally, processor 701 performs the face of the area according to the left face image and the right face image
Product determines target proportion coefficient, including：
If the area of the left face image is less than or equal to the area of the right face image, below equation is utilized
Determine the target proportion coefficient：
Wherein, a is the target proportion coefficient, SA left side 1For the area of the left face image, SThe right side 1For the right face image
Area；
It is described that the angle value is determined according to the target proportion coefficient, including：
The angle value is determined using below equation：
- 90 ° of α=90 ° × a
Wherein, α is the angle value, and a is the target proportion coefficient.
Optionally, processor 701 performs the face of the area according to the left face image and the right face image
Product determines target proportion coefficient, including：
If the area of the left face image is more than the area of the right face image, determined using below equation described
Target proportion coefficient：
Wherein, b is the target proportion coefficient, SA left side 2For the area of the left face image, SThe right side 2For the right face image
Area；
It is described that the angle value is determined according to the target proportion coefficient, including：
The angle value is determined using below equation：
- 90 ° of β=90 ° × b
Wherein, β is the angle value, and b is the target proportion coefficient.
Optionally, processor 701 performs the reception photographing instruction, including：
If the eyes that first camera detects user continuously blink repeatedly, the photographing instruction is received.
Mobile terminal 700 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, here
Repeat no more.And mobile terminal 700 can obtain the face image of user, so it is true according to the face image of the user got
Determine the face of user towards and user position of the pupil in eye contour area image.Then the court of face of user is utilized
To and position of the pupil in eye contour area image of user determine the direction of visual lines of user, final regarding according to user
Line direction determines picture to be captured, and treats shooting picture and shot.In shooting process, the rear camera of mobile terminal
The direction of visual lines of user can be turned in real time, you can with the image as user for the rear camera institute preview for ensureing mobile terminal
The scene seen.User need not frequently adjust the position of mobile terminal, it is not necessary to manual focus, realize automation and clap
According to convenient and swift.
Referring to Fig. 8, Fig. 8 is the structure chart of another mobile terminal provided in an embodiment of the present invention.As shown in figure 8, mobile
Terminal 800 include radio frequency (Radio Frequency, RF) circuit 810, memory 820, input block 830, display unit 840,
Processor 850, voicefrequency circuit 860, communication module 870, power supply 880, CCD camera assembly 890 and it is stored on memory 820 simultaneously
The control program of taking pictures that can be run on processor 850, control program of taking pictures realizes the above-mentioned side of taking pictures when being performed by processor 850
The step of method.
Wherein, input block 830 can be used for the numeral or character information for receiving user's input, and produce and mobile terminal
The signal input that 800 user is set and function control is relevant.Specifically, in the embodiment of the present invention, the input block 830 can
With including contact panel 831.Contact panel 831, also referred to as touch-screen, collect touch operation of the user on or near it
(such as user uses the operations of any suitable object or annex on contact panel 831 such as finger, stylus), and according to advance
The formula of setting drives corresponding attachment means.Optionally, contact panel 831 may include touch detecting apparatus and touch controller
Two parts.Wherein, touch detecting apparatus detects the touch orientation of user, and detects the signal that touch operation is brought, by signal
Send touch controller to；Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate,
Give the processor 850 again, and the order sent of reception processing device 850 and can be performed.Furthermore, it is possible to using resistance-type,
The polytypes such as condenser type, infrared ray and surface acoustic wave realize contact panel 831.Except contact panel 831, input block
830 can also include other input equipments 832, and other input equipments 832 can include but is not limited to physical keyboard, function key
One or more in (such as volume control button, switch key etc.), trace ball, mouse, action bars etc..
Wherein, display unit 840 can be used for information and the movement for showing the information inputted by user or being supplied to user
The various menu interfaces of terminal 800.Display unit 840 may include display panel 841, optionally, can use LCD or organic hairs
The forms such as optical diode (Organic Light-Emitting Diode, OLED) configure display panel 841.
It should be noted that contact panel 831 can cover display panel 841, touch display screen is formed, when touch display screen inspection
Measure after the touch operation on or near it, processor 850 is sent to determine the type of touch event, with preprocessor
850 provide corresponding visual output according to the type of touch event in touch display screen.
Touch display screen includes Application Program Interface viewing area and conventional control viewing area.The Application Program Interface viewing area
And arrangement mode of the conventional control viewing area is not limited, can be arranged above and below, left-right situs etc. can distinguish two and show
Show the arrangement mode in area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can be with
The interface element such as the icon comprising at least one application program and/or widget desktop controls.The Application Program Interface viewing area
It can also be the empty interface not comprising any content.The conventional control viewing area is used to show the higher control of utilization rate, for example,
Application icons such as settings button, interface numbering, scroll bar, phone directory icon etc..
Wherein processor 850 is the control centre of mobile terminal 800, utilizes various interfaces and connection whole mobile phone
Various pieces, software program and/or module in first memory 821 are stored in by operation or execution, and call storage
Data in second memory 822, perform the various functions and processing data of mobile terminal 800, so as to mobile terminal 800
Carry out integral monitoring.Optionally, processor 850 may include one or more processing units.
In embodiments of the present invention, by call store the first memory 821 in software program and/or module and/
Or the data in the second memory 822, processor 850 is used for：
The direction of visual lines of user is obtained by first camera；
The shooting direction of the second camera is adjusted according to the direction of visual lines, so that the shooting of the second camera
Direction is consistent with the direction of visual lines；
Receive photographing instruction；
Shot according to the photographing instruction.
Optionally, processor 850 performs the direction of visual lines that user is obtained by first camera, including：
The face image of user is obtained by first camera；
Face's direction of user is determined according to the face image of the user；
Eye contour area image is determined in the face image of the user, and determines the pupil of user in the eye
Position in contour area image；
According to position of the pupil of face's direction of the user and the user in the eye contour area image,
Determine the direction of visual lines of the user.
Optionally, processor 850 performs face's direction that the face image according to the user determines user, bag
Include：
The angle value between the screen of the mobile terminal and the face of user is determined according to the face image of the user；
Face's direction of user is determined according to the angle value.
Optionally, processor 850 performs the screen that the face image according to the user determines the mobile terminal
Angle value between the face of user, including：
Determine the left face image and right face image in the face image of the user；
The area of the left face image is calculated, the area of the right face image is calculated；
Target proportion coefficient is determined according to the area of the area of the left face image and the right face image；
The angle value is determined according to the target proportion coefficient.
Optionally, processor 850 performs the face of the area according to the left face image and the right face image
Product determines target proportion coefficient, including：
If the area of the left face image is less than or equal to the area of the right face image, below equation is utilized
Determine the target proportion coefficient：
Wherein, a is the target proportion coefficient, SA left side 1For the area of the left face image, SThe right side 1For the right face image
Area；
It is described that the angle value is determined according to the target proportion coefficient, including：
The angle value is determined using below equation：
- 90 ° of α=90 ° × a
Wherein, α is the angle value, and a is the target proportion coefficient.
Optionally, processor 850 performs the face of the area according to the left face image and the right face image
Product determines target proportion coefficient, including：
If the area of the left face image is more than the area of the right face image, determined using below equation described
Target proportion coefficient：
Wherein, b is the target proportion coefficient, SA left side 2For the area of the left face image, SThe right side 2For the right face image
Area；
It is described that the angle value is determined according to the target proportion coefficient, including：
The angle value is determined using below equation：
- 90 ° of β=90 ° × b
Wherein, β is the angle value, and b is the target proportion coefficient.
Optionally, processor 850 performs the reception photographing instruction, including：
If the eyes that first camera detects user continuously blink repeatedly, the photographing instruction is received.
Mobile terminal 800 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, here
Repeat no more.And mobile terminal 800 can obtain the face image of user, so it is true according to the face image of the user got
Determine the face of user towards and user position of the pupil in eye contour area image.Then the court of face of user is utilized
To and position of the pupil in eye contour area image of user determine the direction of visual lines of user, final regarding according to user
Line direction determines picture to be captured, and treats shooting picture and shot.In shooting process, the rear camera of mobile terminal
The direction of visual lines of user can be turned in real time, you can with the image as user for the rear camera institute preview for ensureing mobile terminal
The scene seen.User need not frequently adjust the position of mobile terminal, it is not necessary to manual focus, realize automation and clap
According to convenient and swift.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In embodiment provided herein, it should be understood that disclosed apparatus and method, others can be passed through
Mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, is only
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of device or unit by some interfaces
Connect, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize scheme of the embodiment of the present invention according to the actual needs
Purpose.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.
And foregoing storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can be with store program codes
Medium.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (15)
1. a kind of photographic method, applied to mobile terminal, the mobile terminal have the first opposite camera of shooting direction and
Second camera, the shooting direction of the second camera is adjustable, it is characterised in that methods described includes：
The direction of visual lines of user is obtained by first camera；
The shooting direction of the second camera is adjusted according to the direction of visual lines, so that the shooting direction of the second camera
It is consistent with the direction of visual lines；
Receive photographing instruction；
Shot according to the photographing instruction.
2. the method as described in claim 1, it is characterised in that the sight side that user is obtained by first camera
To, including：
The face image of user is obtained by first camera；
Face's direction of user is determined according to the face image of the user；
Eye contour area image is determined in the face image of the user, and determines the pupil of user in the eye profile
Position in area image；
According to position of the pupil of face's direction of the user and the user in the eye contour area image, it is determined that
The direction of visual lines of the user.
3. method according to claim 2, it is characterised in that the face image according to the user determines user's
Face's direction, including：
The angle value between the screen of the mobile terminal and the face of user is determined according to the face image of the user；
Face's direction of user is determined according to the angle value.
4. method as claimed in claim 3, it is characterised in that the face image according to the user determines the movement
Angle value between the screen of terminal and the face of user, including：
Determine the left face image and right face image in the face image of the user；
The area of the left face image is calculated, the area of the right face image is calculated；
Target proportion coefficient is determined according to the area of the area of the left face image and the right face image；
The angle value is determined according to the target proportion coefficient.
5. method as claimed in claim 4, it is characterised in that the area and the right face according to the left face image
The area of portion's image determines target proportion coefficient, including：
If the area of the left face image is less than or equal to the area of the right face image, determined using below equation
The target proportion coefficient：
Wherein, a is the target proportion coefficient, SA left side 1For the area of the left face image, SThe right side 1For the face of the right face image
Product；
It is described that the angle value is determined according to the target proportion coefficient, including：
The angle value is determined using below equation：
- 90 ° of α=90 ° × a
Wherein, α is the angle value, and a is the target proportion coefficient.
6. method as claimed in claim 4, it is characterised in that the area and the right face according to the left face image
The area of portion's image determines target proportion coefficient, including：
If the area of the left face image is more than the area of the right face image, the target is determined using below equation
Proportionality coefficient：
Wherein, b is the target proportion coefficient, SA left side 2For the area of the left face image, SThe right side 2For the face of the right face image
Product；
It is described that the angle value is determined according to the target proportion coefficient, including：
The angle value is determined using below equation：
- 90 ° of β=90 ° × b
Wherein, β is the angle value, and b is the target proportion coefficient.
7. the method as any one of claim 1-6, it is characterised in that the reception photographing instruction, including：
If the eyes that first camera detects user continuously blink repeatedly, the photographing instruction is received.
8. a kind of mobile terminal, the mobile terminal has opposite the first camera and second camera of shooting direction, described
The shooting direction of second camera is adjustable, it is characterised in that including：
Acquisition module, the direction of visual lines for obtaining user by first camera；
Adjusting module, the direction of visual lines for being got according to the acquisition module adjusts the shooting side of the second camera
To so that the shooting direction of the second camera is consistent with the direction of visual lines；
Receiving module, for receiving photographing instruction；
Taking module, the photographing instruction for being received according to the receiving module is shot.
9. mobile terminal as claimed in claim 8, it is characterised in that the acquisition module includes：
First acquisition submodule, the face image for obtaining user by first camera；
First determination sub-module, the face image of the user for being got according to first acquisition submodule determines user's
Face's direction；
Second determination sub-module, for determining eye wheel in the face image for the user that first acquisition submodule is got
Wide area image, and determine position of the pupil of user in the eye contour area image；
3rd determination sub-module, for face's direction of user and described second according to determined by first determination sub-module
Position of the pupil of user determined by determination sub-module in the eye contour area image, determines the sight of the user
Direction.
10. mobile terminal as claimed in claim 9, it is characterised in that first determination sub-module includes：
First determining unit, the face image of the user for being got according to first acquisition submodule determines the movement
Angle value between the screen of terminal and the face of user；
Second determining unit, face's direction of user is determined for the angle value according to determined by first determining unit.
11. mobile terminal as claimed in claim 10, it is characterised in that first determining unit includes：
First determination subelement, the left face in face image for determining the user that first acquisition submodule is got
Image and right face image；
Computation subunit, the area for calculating left face image determined by first determination subelement calculates described the
The area of right face image determined by one determination subelement；
Second determination subelement, for the area and the right face of the left face image calculated according to the computation subunit
The area of portion's image determines target proportion coefficient；
3rd determination subelement, the angle is determined for the target proportion coefficient according to determined by second determination subelement
Value.
12. mobile terminal as claimed in claim 11, it is characterised in that second determination subelement specifically for：If institute
The area for stating left face image is less than or equal to the area of the right face image, then determines the target using below equation
Proportionality coefficient：
Wherein, a is the target proportion coefficient, SA left side 1For the area of the left face image, SThe right side 1For the face of the right face image
Product；
3rd determination subelement specifically for：The angle value is determined using below equation：
- 90 ° of α=90 ° × a
Wherein, α is the angle value, and a is the target proportion coefficient.
13. mobile terminal as claimed in claim 11, it is characterised in that second determination subelement specifically for：If institute
The area for stating left face image is more than the area of the right face image, then determines the target proportion system using below equation
Number：
Wherein, b is the target proportion coefficient, SA left side 2For the area of the left face image, SThe right side 2For the face of the right face image
Product；
3rd determination subelement specifically for：The angle value is determined using below equation：
- 90 ° of β=90 ° × b
Wherein, β is the angle value, and b is the target proportion coefficient.
14. the mobile terminal as any one of claim 8-13, it is characterised in that the receiving module specifically for：
If the eyes that first camera detects user continuously blink repeatedly, the photographing instruction is received.
15. a kind of mobile terminal, it is characterised in that including processor, memory and be stored on the memory and can be in institute
The control program of taking pictures run on processor is stated, the control program of taking pictures is realized such as claim during the computing device
The step of photographic method any one of 1 to 7.
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| CN201710493788.8A CN107333059A (en) | 2017-06-26 | 2017-06-26 | A kind of photographic method and mobile terminal |
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| CN108881724A (en) * | 2018-07-17 | 2018-11-23 | 北京七鑫易维信息技术有限公司 | A kind of image acquiring method, device, equipment and storage medium |
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Application publication date: 20171107 |