CN106210529A - The image pickup method of mobile terminal and device - Google Patents
The image pickup method of mobile terminal and device Download PDFInfo
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- CN106210529A CN106210529A CN201610616305.4A CN201610616305A CN106210529A CN 106210529 A CN106210529 A CN 106210529A CN 201610616305 A CN201610616305 A CN 201610616305A CN 106210529 A CN106210529 A CN 106210529A
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- pixel
- goal object
- main identification
- photographic head
- captured
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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
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
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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
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
- H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Image Analysis (AREA)
Abstract
The invention discloses image pickup method and the device of a kind of mobile terminal.Wherein method includes: move according to default time interval controls photographic head module, and when photographic head module often completes once to move, gathers goal object image to be captured；Identify the shooting area of goal object in goal object image to be captured, and determine the main identification pixel of goal object image to be captured according to the shooting area of goal object；According to the main identification pixel of the goal object image to be captured gathered, generate the change curve of main identification pixel；Judge whether the change curve of main identification pixel meets pre-conditioned；If the change curve of main identification pixel meets pre-conditioned, then stop the movement of photographic head module.The method, while ensureing the shooting quality of image, has also been reached can quickly be aligned by high-precision mode the purpose of goal object image, has ensured the good result of final image.
Description
Technical field
The present invention relates to technical field of mobile terminals, particularly relate to image pickup method and the device of a kind of mobile terminal.
Background technology
At present, when user uses mobile terminal to shoot goal object, if owing to the hand-held mobile terminal of user
Poor direction really the goal object in the image photographed can be caused to be in abnormal condition, such as the target thing in image
Thing is trapezoidal.In correlation technique, so that the goal object in image is in normal condition, often by shooting complete with
Later stage carries out the method that cuts of picture stretching and shoots, and so, causes picture to have deformation unavoidably, also can reduce image
Shooting quality, thus cause final image effect the best.
Summary of the invention
The purpose of the present invention is intended to solve one of above-mentioned technical problem the most to a certain extent.
To this end, the first of the present invention purpose is to propose the image pickup method of a kind of mobile terminal.The method is ensureing figure
While the shooting quality of picture, also reach can quickly be aligned by high-precision mode the purpose of goal object image, protected
Hinder the good result of final image.
Second object of the present invention is to propose the filming apparatus of a kind of mobile terminal.
Third object of the present invention is to propose a kind of mobile terminal.
For reaching above-mentioned purpose, the image pickup method of the mobile terminal of first aspect present invention embodiment, including: according to default
Time interval controls photographic head module moves, and when described photographic head module often completes once to move, gathers to be captured
Goal object image；Identify the shooting area of goal object described in described goal object image to be captured, and according to institute
The shooting area stating goal object determines the main identification pixel of described goal object image to be captured；Treat according to gathering
The main identification pixel of the goal object image of shooting, generates the change curve of main identification pixel；Judge described main identification pixel
It is pre-conditioned whether change curve meets；If the change curve of described main identification pixel meets described pre-conditioned, then stop
The movement of described photographic head module.
The image pickup method of mobile terminal according to embodiments of the present invention, according to default time interval controls photographic head module
Move, and when photographic head module often completes once to move, gather goal object image to be captured, afterwards, recognizable
The shooting area of goal object in goal object image to be captured, and determine to be captured according to the shooting area of goal object
The main identification pixel of goal object image, then, according to the main identification pixel of the goal object image to be captured gathered, generates
The change curve of main identification pixel, afterwards, it is judged that whether the change curve of main identification pixel meets pre-conditioned, if main identification
The change curve of pixel meets pre-conditioned, then stop the movement of photographic head module.I.e. entered by Separation control photographic head module
The movement of row different directions, to align goal object image to be captured, is in normal condition, the most in fact with this goal object image
Showed can align this goal object image during user uses mobile terminal to take pictures goal object so that its
It is in normal condition, it is not necessary to the later stage image to photographing carries out such as the process such as picture stretching cuts, in the shooting ensureing image
While quality, also reach can quickly be aligned by high-precision mode the purpose of goal object image, ensured final
The good result of image.
According to one embodiment of present invention, after the movement of described stopping described photographic head module, described method is also
Including: according to the current location of the described photographic head module before stopping, described goal object is shot.
According to one embodiment of present invention, described move according to default time interval controls photographic head module,
Including: carry out not Tongfang by micro-electromechanical optical stabilization system MEMS OIS according to default time interval controls photographic head module
To movement.
According to one embodiment of present invention, goal object described in the described goal object image to be captured of described identification
Shooting area, including: described goal object image to be captured is carried out contrast and brightness increasing and processes, to treat from described
The goal object image of shooting identifies the shooting area of described goal object.
According to one embodiment of present invention, the described shooting area according to described goal object determines described to be captured
The main identification pixel of goal object image, including: obtain the brightness value of all pixels in described shooting area, and calculate institute
State the brightness value similarity between current pixel point and vicinity points in shooting area；Determine described in described all pixels
Brightness value similarity is more than or equal to the number of the pixel of predetermined threshold value；Judge brightness value phase described in described all pixels
Whether it is more than brightness value similarity described in described all pixels more than or equal to the number of the pixel of predetermined threshold value like degree
Number less than the pixel of described predetermined threshold value；Brightness value similarity described in the most described all pixels is more than
Or it is equal to the pixel of predetermined threshold value as described main identification pixel；If it is not, then by brightness value described in described all pixels
Similarity is less than the pixel of described predetermined threshold value as described main identification pixel.
According to one embodiment of present invention, whether the described change curve judging described main identification pixel meets default bar
Part, including: according to the change curve of described main identification pixel, it is judged that during the described photographic head module of control moves
Whether the number of described main identification pixel gradually decreases；If the number of described main identification pixel gradually decreases, then judge described
The change curve of main identification pixel meets described pre-conditioned.
According to one embodiment of present invention, described method also includes: if the number of described main identification pixel gradually increases
Steps that are many, then that move according to default time interval controls photographic head module described in execution.
According to one embodiment of present invention, during described goal object at least includes Quick Response Code, PPT, blackboard and blank
Any one.
For reaching above-mentioned purpose, the filming apparatus of the mobile terminal of second aspect present invention embodiment, including: photographic head module
Control module, for moving according to default time interval controls photographic head module；Image capture module, for described
When photographic head module often completes once to move, gather goal object image to be captured；Shooting area identification module, is used for identifying
The shooting area of goal object described in described goal object image to be captured；Main identification pixel determines module, for basis
The shooting area of described goal object determines the main identification pixel of described goal object image to be captured；Change curve generates mould
Block, for the main identification pixel according to the goal object image described to be captured gathered, the change generating main identification pixel is bent
Line；Judge module, for judging whether the change curve of described main identification pixel meets pre-conditioned；Described photographic head module control
Molding block be additionally operable to described judge module judge the change curve of described main identification pixel meet described pre-conditioned time, stop
The movement of described photographic head module.
The filming apparatus of mobile terminal according to embodiments of the present invention, can be by photographic head module control module according to presetting
Time interval controls photographic head module move, image capture module, when photographic head module often completes once to move, is adopted
Collect goal object image to be captured, the bat of goal object in the goal object image that shooting area identification module identification is to be captured
Taking the photograph region, main identification pixel determines that module determines the main knowledge of goal object image to be captured according to the shooting area of goal object
Other pixel, change curve generation module, according to the main identification pixel of the goal object image to be captured gathered, generates main identification
The change curve of pixel, it is judged that module judges whether the change curve of main identification pixel meets pre-conditioned, if main identification picture
The change curve of element meets pre-conditioned, and photographic head module control module then stops the movement of photographic head module.I.e. by interval
Control photographic head module and carry out the movement of different directions, to align goal object image to be captured, with this goal object image
It is in normal condition, i.e. achieves and can align this mesh during user uses mobile terminal to take pictures goal object
Mark things image is to be at normal condition, it is not necessary to the later stage image to photographing carries out such as the process such as picture stretching cuts,
While ensureing the shooting quality of image, also reach can quickly align goal object image by high-precision mode
Purpose, has ensured the good result of final image.
According to one embodiment of present invention, described device also includes: taking module, in described photographic head module control
After molding block stops the movement of described photographic head module, according to the current location of described photographic head module before stopping to institute
State goal object to shoot.
According to one embodiment of present invention, described photographic head module control module specifically for: pass through micro-electromechanical optical
Stabilization system MEMS OIS carries out the movement of different directions according to default time interval controls photographic head module.
According to one embodiment of present invention, described shooting area identification module specifically for: by described mesh to be captured
Mark things image carries out contrast and brightness increasing processes, to identify described mesh from described goal object image to be captured
The shooting area of mark things.
According to one embodiment of present invention, described main identification pixel determines module, including: acquiring unit, it is used for obtaining
The brightness value of all pixels in described shooting area；Computing unit, is used for calculating current pixel point in described shooting area
And the brightness value similarity between vicinity points；First determines unit, is used for determining brightness described in described all pixels
Value similarity is more than or equal to the number of the pixel of predetermined threshold value；Judging unit, is used for judging institute in described all pixels
State brightness value similarity the brightest more than described in described all pixels more than or equal to the number of the pixel of predetermined threshold value
Angle value similarity is less than the number of the pixel of described predetermined threshold value；Second determines unit, in described all pixels
Described brightness value similarity is more than brightness described in described all pixels more than or equal to the number of the pixel of predetermined threshold value
When value similarity is less than the number of the pixel of described predetermined threshold value, by big for brightness value similarity described in described all pixels
In or equal to the pixel of predetermined threshold value as described main identification pixel；Described second determines unit, is additionally operable to described all
Brightness value similarity described in pixel is less than or equal to described all pictures more than or equal to the number of the pixel of predetermined threshold value
When brightness value similarity described in vegetarian refreshments is less than the number of the pixel of described predetermined threshold value, described in described all pixels
Brightness value similarity is less than the pixel of described predetermined threshold value as described main identification pixel.
According to one embodiment of present invention, described judge module includes: the first judging unit, for according to described main knowledge
The change curve of other pixel, it is judged that controlling the number of described main identification pixel during described photographic head module moves
Whether gradually decrease；Second judging unit, for when the number of described main identification pixel gradually decreases, it is determined that described main identification
The change curve of pixel meets described pre-conditioned.
According to one embodiment of present invention, described photographic head module control module is additionally operable to: in described main identification pixel
Number when gradually increasing, move according to photographic head module described in described default time interval controls.
According to one embodiment of present invention, during described goal object at least includes Quick Response Code, PPT, blackboard and blank
Any one.
For reaching above-mentioned purpose, the mobile terminal of third aspect present invention embodiment, including: housing；Processor；Memorizer；
Circuit board and power circuit；Wherein, described circuit board is placed in the interior volume that described housing surrounds, described processor and described
Memorizer is arranged on described circuit board；Described power circuit, powers for each circuit or the device for described mobile terminal；
Described memorizer is used for storing executable program code；Described processor is by reading the performed journey of storage in described memorizer
Sequence code runs the program corresponding with executable program code, for execution: according to default time interval controls shooting
Head mould group moves, and when described photographic head module often completes once to move, gathers goal object image to be captured；Know
The shooting area of goal object described in the most described goal object image to be captured, and according to the shooting district of described goal object
Territory determines the main identification pixel of described goal object image to be captured；According to the goal object image described to be captured gathered
Main identification pixel, generate the change curve of main identification pixel；Judge whether the change curve of described main identification pixel meets pre-
If condition；If the change curve of described main identification pixel meets described pre-conditioned, then stop the shifting of described photographic head module
Dynamic.
Mobile terminal according to embodiments of the present invention, moves according to default time interval controls photographic head module,
And when photographic head module often completes once to move, gather goal object image to be captured, afterwards, recognizable mesh to be captured
The shooting area of goal object in mark things image, and determine goal object figure to be captured according to the shooting area of goal object
The main identification pixel of picture, then, according to the main identification pixel of the goal object image to be captured gathered, generates main identification pixel
Change curve, afterwards, it is judged that whether the change curve of main identification pixel meets pre-conditioned, if the change of main identification pixel
Curve meets pre-conditioned, then stop the movement of photographic head module.I.e. carry out different directions by Separation control photographic head module
Movement, to align goal object image to be captured, be in normal condition with this goal object image, i.e. achieve user
Use mobile terminal can align this goal object image to be at normal shape during goal object is taken pictures
State, it is not necessary to the later stage image to photographing carries out such as the process such as picture stretching cuts, while ensureing the shooting quality of image,
Also reach can quickly be aligned by high-precision mode the purpose of goal object image, ensure the good effect of final image
Really.
Aspect and advantage that the present invention adds will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or that add aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially with easy to understand, wherein:
Fig. 1 is the flow chart of the image pickup method of mobile terminal according to an embodiment of the invention；
Fig. 2 is the stream of the main identification pixel determining goal object image to be captured according to an embodiment of the invention
Journey；
Fig. 3 is according to an embodiment of the invention before and after dollying head mould group, target thing to be captured
The example states figure of object image；
Fig. 4 is the structural representation of the filming apparatus of mobile terminal according to an embodiment of the invention；
Fig. 5 is the structural representation that the most main identification pixel determines module；
Fig. 6 is the structural representation of judge module according to an embodiment of the invention；
Fig. 7 is the structural representation of the filming apparatus of mobile terminal in accordance with another embodiment of the present invention；
Fig. 8 is the structural representation of mobile terminal according to an embodiment of the invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings image pickup method and the device of the mobile terminal of the embodiment of the present invention are described.
Fig. 1 is the flow chart of the image pickup method of mobile terminal according to an embodiment of the invention.It should be noted that this
Embodiment is configured in the filming apparatus of mobile terminal illustrate with the image pickup method of this mobile terminal.The reality of the present invention
Executing example and can apply during user uses mobile terminal to take pictures goal object, wherein, this goal object is at least
Can include in Quick Response Code, PPT (Microsoft Office PowerPoin, PowerPoint), blackboard and blank etc. is any one
Kind.Additionally, mobile terminal can be smart mobile phone, panel computer, personal digital assistant, e-book etc. has various operating system
Hardware device, this is not restricted.
As it is shown in figure 1, the image pickup method of this mobile terminal may include that
S110, moves according to default time interval controls photographic head module, and often completes one at photographic head module
Secondary mobile time, gather goal object image to be captured.
It should be noted that in one embodiment of the invention, above-mentioned photographic head module module can include but not limit
In camera lens, motor and sensitive component sensor etc..Additionally, in an embodiment of the present invention, this mobile terminal can have microcomputer
Electrooptics stabilization system MEMS OIS, wherein, this micro-electromechanical optical stabilization system MEMS OIS can be connected with photographic head module.
Specifically, in one embodiment of the invention, can by micro-electromechanical optical stabilization system MEMS OIS according to
The time interval controls photographic head module preset carries out the movement of different directions.Wherein, the above-mentioned default time can be that system sets
Fixed, such as, can be according to gathering the goal object image to be captured change to the main identification pixel judged in goal object image
Changing what the time required for whether curve meets this process pre-conditioned determined, such as, this required time is 1 second,
Then this time preset can be set as 1 second.
As a kind of example, above-mentioned micro-electromechanical optical stabilization system MEMS OIS can include fixed electrode and fixed electrode
The float electrode that coordinates and fixing connect this fixed electrode and float electrode can deformation connector, wherein, this fixed electrode
And float electrode is for producing electrostatic force under the effect of driving voltage, this can be used for the work at this electrostatic force by deformation connector
Control photographic head module module and carry out along the direction deformation that float electrode moves to allow this float electrode to move with lower
Mobile.
In this example, this MEMS OIS can include multipair fixed electrode and float electrode, every pair of fixed electrode and activity
Electrode is used for driving photographic head module module to move along different directions in same plane.Thus, can realize shooting head mould
Group carries out the mobile control of different directions.
After photographic head module once being moved at interval of the default time, can often complete one at photographic head module
Secondary mobile time, gather goal object image to be captured by photographic head module after movement.Such as, can be by taking the photograph after movement
As head mould group, carry out getting frame to realize the collection to goal object image to be captured according to intervals.
Wherein, in an embodiment of the present invention, this goal object to be captured can be but be not limited to Quick Response Code, PPT, blank
With blackboard etc., this goal object to be captured can also is that other things, it will be understood that the feature of this things is that this things institute is right
Brightness and the contrast ratio of the pixel in the image answered are sharper, it is easy to difference.
S120, identifies the shooting area of goal object in goal object image to be captured, and according to the bat of goal object
Take the photograph region and determine the main identification pixel of goal object image to be captured.
As a kind of example, goal object image to be captured can be carried out contrast and brightness increasing processes, with from treating
The goal object image of shooting identifies the shooting area of goal object.Specifically, the target to be captured that can will collect
Things image carries out contrast and brightness increasing processes, to amplify the difference of body region and beside, such as, with this target
As a example by things is PPT, the background on this PPT side typically will not be the brightest, and PPT is usually brighter, so, is amplifying body region
After the difference of territory and beside, can be by this difference to identify the shooting area of this goal object.Thus, it is possible to it is logical
Crossing light and shade contrast can be with the border of quick obtaining main body, and using this border as the shooting area of this goal object.
After the shooting area identifying goal object, mesh to be captured can be determined according to the shooting area of goal object
The main identification pixel of mark things image.As a kind of example, as in figure 2 it is shown, determine according to the shooting area of goal object and wait to clap
The process that implements of the main identification pixel of the goal object image taken the photograph can comprise the steps:
S21, the brightness value of all pixels in acquisition shooting area, and calculate current pixel point and neighbour in shooting area
Brightness value similarity between nearly pixel.
S22, determines that in all pixels, brightness value similarity is more than or equal to the number of the pixel of predetermined threshold value.
S23, it is judged that in all pixels brightness value similarity more than or equal to the pixel of predetermined threshold value number whether
The number of the pixel of predetermined threshold value it is less than more than brightness value similarity in all pixels.
S24, the most then be more than or equal to the pixel of predetermined threshold value as master using brightness value similarity in all pixels
Identify pixel.
S25, if it is not, be then less than the pixel of predetermined threshold value as main identification picture using brightness value similarity in all pixels
Element.
If it is to say, in shooting area the pixel up and down of a pixel all with the brightness picture of this pixel
Element is similar, then include this pixel in collection of pixels to be investigated, it will be understood that simple situation is the most only described, substantially will clap
Taking the photograph the pixel in region and be divided into light and shade two class, this quickly can be sorted out by controlling the restrictive conditions such as similar brightness range,
Finally, using similar pixel points many for quantity as main identification pixel.
S130, according to the main identification pixel of the goal object image to be captured gathered, generates the change of main identification pixel
Curve.
Specifically, when often completing a photographic head module mobile, it may be determined that the goal object to be captured collected
The number of the main identification pixel of image, then, this goal object figure to be captured collected when moving by photographic head module
Drawing of the number of the main identification pixel of picture correspondence in a coordinate system, so, by photographic head module in time repeatedly moving, can
By multi collect to the number of main identification pixel of goal object image to be captured the most corresponding draw,
To form a curve, this curve is the change curve of main identification pixel.
Being appreciated that as a example by goal object is as PPT, the image to be captured at PPT is treating of normal condition, i.e. this PPT
Shooting image is square or rectangular, rather than time trapezoidal, the main identification pixel in the image to be captured of this PPT is the most most
, the area of covering is maximum, has only to control photographic head module the most every time and moves toward different directions, can form one after moving
Bar curve, this curve is the change curve of main identification pixel.
S140, it is judged that whether the change curve of main identification pixel meets pre-conditioned.
Specifically, in one embodiment of the invention, can be according to the change curve of main identification pixel, it is judged that controlling
Photographic head module during moving the number of main identification pixel whether gradually decrease, if the number of main identification pixel by
The fewest, then judge that the change curve of main identification pixel meets pre-conditioned.
Being appreciated that as a example by goal object is as PPT, the image to be captured at PPT is treating of normal condition, i.e. this PPT
Shooting image is square or rectangular, rather than time trapezoidal, the main identification pixel in the image to be captured of this PPT is the most most
, the area of covering is maximum, so, it is possible to use this characteristic judges whether goal object image to be captured is normal shape
State, if the number of the most main identification pixel gradually decreases, then illustrates that this goal object image eve to be captured has been normal
State, and judge that main identification pixel now meets pre-conditioned, if the number of main identification pixel gradually increases, shooting is described
The moving direction of head mould group is precisely the direction of the normal condition to goal object image to be captured, then the most to be captured
The number of the main identification pixel in goal object image can increase, and now can determine that the change curve of this main identification pixel is unsatisfactory for
Pre-conditioned.
In order to improve availability and feasibility, further, in one embodiment of the invention, if main identification picture
The number of element gradually increases, if the change curve of the most main identification pixel is unsatisfactory for pre-conditioned, then performs according to time default
Between the step that moves of Separation control photographic head module, i.e. perform step S110 as shown in Figure 1.It is to say, controlling
During photographic head module moves, if the number of main identification pixel gradually increases, the change of the most main identification pixel
Change curve and be unsatisfactory for pre-conditioned, then need to return step S110, i.e. continue to move to photographic head module.Thus, it is possible to by mobile
Photographic head module carries out the movement in various direction to adjust goal object image to be captured so that goal object to be captured
Image is at normal condition.
S150, if the change curve of main identification pixel meets pre-conditioned, then stops the movement of photographic head module.
It is to say, when the change curve of main identification pixel meets pre-conditioned, the most no longer dollying head mould
Group.
To sum up, can progressively adjust goal object image by the way of trial and error and be at normal condition,
Many mobile 4 times can be by goal object image levelling to be captured, as long as minimum movement can align target thing to be captured for 1 time
Object image.
In order to promote Consumer's Experience, improve availability, further, in one embodiment of the invention, take the photograph in stopping
After the movement of head mould group, this image pickup method may also include that the current location according to the photographic head module before stopping is to mesh
Mark things shoots.It is appreciated that the reason of movement stopping photographic head module is due to goal object image to be captured
In the number of main identification pixel gradually decrease, so, it is possible to understand that the current location of photographic head module before stopping, institute
The number of the main identification pixel in the goal object image to be captured collected is most, i.e. it is believed that now to be captured
Goal object image be normal condition, therefore, can be according to the current location of the photographic head module before this stopping to target thing
Thing shoots so that the image photographed is normal condition.
For example, when goal object is shot by the camera application program that user starts mobile terminal, due to
The poor direction of the hand-held mobile terminal of user is true, as to the front or to the rear etc., causes the image gathered in camera application program to be in
Abnormal condition, such as, as shown in left in Figure 3 trapezoidal, now, can be pressed by micro-electromechanical optical stabilization system MEMS OIS
Carry out the movement of different directions according to default time interval controls photographic head module, and often complete once to move at photographic head module
Time, gather goal object image to be captured by photographic head module, afterwards, identify target in goal object image to be captured
The shooting area of things, and the main identification pixel of goal object image to be captured is determined according to the shooting area of goal object,
Then, according to the main identification pixel of the goal object image to be captured gathered, generate the change curve of main identification pixel, and sentence
Whether the change curve of disconnected main identification pixel meets pre-conditioned, if the change curve of main identification pixel meets pre-conditioned,
Then stop the movement of photographic head module.Finally, according to the current location of the photographic head module before stopping, goal object is carried out
Shooting.Thus, after identifying goal object, can be entered by micro-electromechanical optical stabilization system MEMS OIS dollying head mould group
The various operations of row are to adjust goal object image taking so that the goal object image photographed is in normal condition, such as, as
In Fig. 3 shown in right figure, after i.e. making left figure be adjusted to the state shown in right figure by dollying head mould group, then shoot.
Hereby it is achieved that during goal object being taken pictures by mobile terminal, the mesh to be captured collected can be aligned
Mark things image so that it is being in normal condition, so, after shooting completes, the goal object in image has been normal condition,
The mode this image carrying out, picture stretching cuts etc. without the later stage is to be at normal condition, it is achieved that by high-precision
Mode can quickly align goal object image function.
The image pickup method of mobile terminal according to embodiments of the present invention, according to default time interval controls photographic head module
Move, and when photographic head module often completes once to move, gather goal object image to be captured, afterwards, recognizable
The shooting area of goal object in goal object image to be captured, and determine to be captured according to the shooting area of goal object
The main identification pixel of goal object image, then, according to the main identification pixel of the goal object image to be captured gathered, generates
The change curve of main identification pixel, afterwards, it is judged that whether the change curve of main identification pixel meets pre-conditioned, if main identification
The change curve of pixel meets pre-conditioned, then stop the movement of photographic head module.I.e. entered by Separation control photographic head module
The movement of row different directions, to align goal object image to be captured, is in normal condition, the most in fact with this goal object image
Showed can align this goal object image during user uses mobile terminal to take pictures goal object so that its
It is in normal condition, it is not necessary to the later stage image to photographing carries out such as the process such as picture stretching cuts, in the shooting ensureing image
While quality, also reach can quickly be aligned by high-precision mode the purpose of goal object image, ensured final
The good result of image.
Corresponding with the image pickup method of the mobile terminal that above-mentioned several embodiments provide, a kind of embodiment of the present invention also carries
For the filming apparatus of a kind of mobile terminal, the filming apparatus of the mobile terminal provided due to the embodiment of the present invention and above-mentioned several realities
The image pickup method executing the mobile terminal that example provides is corresponding, and therefore the embodiment at the image pickup method of aforementioned mobile terminal is also fitted
For the filming apparatus of the mobile terminal that the present embodiment provides, it is not described in detail in the present embodiment.Fig. 4 is according to the present invention
The structural representation of the filming apparatus of the mobile terminal of one embodiment.As shown in Figure 4, the filming apparatus of this mobile terminal is permissible
Including: photographic head module control module 100, image capture module 200, shooting area identification module 300, main identification pixel determine
Module 400, change curve generation module 500 and judge module 600.
Specifically, photographic head module control module 100 can be used for entering according to default time interval controls photographic head module
Row is mobile.Specifically, in one embodiment of the invention, photographic head module control module 100 can pass through micro-electromechanical optical
Stabilization system MEMS OIS carries out the movement of different directions according to default time interval controls photographic head module.
Image capture module 200 can be used for, when photographic head module often completes once to move, gathering target thing to be captured
Object image.Wherein, this goal object at least can include any one in Quick Response Code, PPT, blackboard and blank etc..
Shooting area identification module 300 can be used for identifying the shooting district of goal object in goal object image to be captured
Territory.As a kind of example, shooting area identification module 300 goal object image to be captured can be carried out contrast and brightness adds
Big process, to identify the shooting area of goal object from goal object image to be captured.
Main identification pixel determines that module 400 can be used for the shooting area according to goal object and determines goal object to be captured
The main identification pixel of image.
As a kind of example, as it is shown in figure 5, this main identification pixel determines that module 400 comprises the steps that acquiring unit 401, calculates
Unit 402, first determine that unit 403, judging unit 404 and second determine unit 405.
Wherein, acquiring unit 401 can be used for obtaining the brightness value of all pixels in shooting area.Computing unit 402
Can be used for the brightness value similarity between current pixel point and vicinity points in calculating shooting area.First determines unit 403
Can be used for determining that in all pixels, brightness value similarity is more than or equal to the number of the pixel of predetermined threshold value.Judging unit
404 for judging in all pixels, whether brightness value similarity is more than institute more than or equal to the number of the pixel of predetermined threshold value
Brightness value similarity in pixel is had to be less than the number of the pixel of predetermined threshold value.Second determines that unit 405 is at all pictures
In vegetarian refreshments, brightness value similarity is similar more than brightness value in all pixels more than or equal to the number of the pixel of predetermined threshold value
When degree is less than the number of the pixel of predetermined threshold value, by brightness value similarity in all pixels more than or equal to predetermined threshold value
Pixel is as main identification pixel.Wherein, in an embodiment of the present invention, second determines that unit 405 can be additionally used at all pictures
In vegetarian refreshments, brightness value similarity is less than or equal to brightness in all pixels more than or equal to the number of the pixel of predetermined threshold value
When value similarity is less than the number of the pixel of predetermined threshold value, by brightness value similarity in all pixels less than predetermined threshold value
Pixel is as main identification pixel.
Change curve generation module 500 can be used for the main identification pixel according to the goal object image to be captured gathered,
Generate the change curve of main identification pixel.
Judge module 600 can be used for judging whether the change curve of main identification pixel meets pre-conditioned.Show as one
Example, as shown in Figure 6, this judge module 600 may include that the first judging unit 601 and the second judging unit 602.
Wherein, the first judging unit 601 can be used for the change curve according to main identification pixel, it is judged that is controlling shooting head mould
Group during moving the number of main identification pixel whether gradually decrease.Second judging unit 602 can be used in main identification
When the number of pixel gradually decreases, it is determined that the change curve of main identification pixel meets pre-conditioned.
Photographic head module control module 100 can be additionally used in and judges that the change curve of main identification pixel is full at judge module 600
When foot is pre-conditioned, stop the movement of photographic head module.
In order to promote Consumer's Experience, improve availability, further, in one embodiment of the invention, such as Fig. 7 institute
Showing, this filming apparatus may also include that taking module 700, taking module 700 to can be used in photographic head module control module 100 to stop
Only after the movement of photographic head module, according to the current location of the photographic head module before stopping, goal object is shot.
In order to improve availability and feasibility, further, in one embodiment of the invention, photographic head module control
Molding block 100 can be additionally used in: when the number of main identification pixel gradually increases, according to default time interval controls shooting head mould
Group moves.
The filming apparatus of mobile terminal according to embodiments of the present invention, can be by photographic head module control module according to presetting
Time interval controls photographic head module move, image capture module, when photographic head module often completes once to move, is adopted
Collect goal object image to be captured, the bat of goal object in the goal object image that shooting area identification module identification is to be captured
Taking the photograph region, main identification pixel determines that module determines the main knowledge of goal object image to be captured according to the shooting area of goal object
Other pixel, change curve generation module, according to the main identification pixel of the goal object image to be captured gathered, generates main identification
The change curve of pixel, it is judged that module judges whether the change curve of main identification pixel meets pre-conditioned, if main identification picture
The change curve of element meets pre-conditioned, and photographic head module control module then stops the movement of photographic head module.I.e. by interval
Control photographic head module and carry out the movement of different directions, to align goal object image to be captured, with this goal object image
It is in normal condition, i.e. achieves and can align this mesh during user uses mobile terminal to take pictures goal object
Mark things image is to be at normal condition, it is not necessary to the later stage image to photographing carries out such as the process such as picture stretching cuts,
While ensureing the shooting quality of image, also reach can quickly align goal object image by high-precision mode
Purpose, has ensured the good result of final image.
In order to realize above-described embodiment, the invention allows for a kind of mobile terminal.
Fig. 8 is the structural representation of mobile terminal according to an embodiment of the invention.As shown in Figure 8, this mobile terminal
May include that housing 81；Processor 82；Memorizer 83；Circuit board 84 and power circuit 85；Wherein, circuit board 84 is placed in shell
The interior volume that body 81 surrounds, processor 82 and memorizer 83 are arranged on circuit board 84；Power circuit 85, for for mobile whole
Each circuit or the device of end are powered；Memorizer 83 is used for storing executable program code；Processor 82 is by reading memorizer
In 83, the executable program code of storage runs the program corresponding with executable program code, for execution:
S101 ', moves according to default time interval controls photographic head module, and often completes one at photographic head module
Secondary mobile time, gather goal object image to be captured.
S102 ', identifies the shooting area of goal object in goal object image to be captured, and according to the bat of goal object
Take the photograph region and determine the main identification pixel of goal object image to be captured.
S103 ', according to the main identification pixel of the goal object image to be captured gathered, generates the change of main identification pixel
Curve.
S104 ', it is judged that whether the change curve of main identification pixel meets pre-conditioned.
S105 ', if the change curve of main identification pixel meets pre-conditioned, then stops the movement of photographic head module.
Mobile terminal according to embodiments of the present invention, moves according to default time interval controls photographic head module,
And when photographic head module often completes once to move, gather goal object image to be captured, afterwards, recognizable mesh to be captured
The shooting area of goal object in mark things image, and determine goal object figure to be captured according to the shooting area of goal object
The main identification pixel of picture, then, according to the main identification pixel of the goal object image to be captured gathered, generates main identification pixel
Change curve, afterwards, it is judged that whether the change curve of main identification pixel meets pre-conditioned, if the change of main identification pixel
Curve meets pre-conditioned, then stop the movement of photographic head module.I.e. carry out different directions by Separation control photographic head module
Movement, to align goal object image to be captured, be in normal condition with this goal object image, i.e. achieve user
Use mobile terminal can align this goal object image to be at normal shape during goal object is taken pictures
State, it is not necessary to the later stage image to photographing carries out such as the process such as picture stretching cuts, while ensureing the shooting quality of image,
Also reach can quickly be aligned by high-precision mode the purpose of goal object image, ensure the good effect of final image
Really
In describing the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " the
One ", the feature of " second " can express or implicitly include at least one this feature.In describing the invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combination.
In flow chart or at this, any process described otherwise above or method description are construed as, and expression includes
One or more is for realizing the module of code, fragment or the portion of the executable instruction of the step of specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not by shown or discuss suitable
Sequence, including according to involved function by basic mode simultaneously or in the opposite order, performs function, and this should be by the present invention
Embodiment person of ordinary skill in the field understood.
Represent in flow charts or the logic described otherwise above at this and/or step, for example, it is possible to be considered as to use
In the sequencing list of the executable instruction realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (system such as computer based system, including processor or other can hold from instruction
Row system, device or equipment instruction fetch also perform the system instructed) use, or combine these instruction execution systems, device or set
Standby and use.For the purpose of this specification, " computer-readable medium " can be any can to comprise, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or combines these instruction execution systems, device or equipment and the dress that uses
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following: have the electricity of one or more wiring
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read only memory
(ROM), erasable read only memory (EPROM or flash memory), the fiber device edited, and portable optic disk is read-only deposits
Reservoir (CDROM).It addition, computer-readable medium can even is that and can print the paper of described program thereon or other are suitable
Medium, because then can carry out editing, interpreting or if desired with it such as by paper or other media are carried out optical scanning
His suitable method is processed to electronically obtain described program, is then stored in computer storage.
Should be appreciated that each several part of the present invention can realize by hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method in memory and can be performed by suitable instruction execution system with storage
Or firmware realizes.Such as, if realized with hardware, with the most the same, available well known in the art under
Any one or their combination in row technology realize: have the logic gates for data signal realizes logic function
Discrete logic, there is the special IC of suitable combination logic gate circuit, programmable gate array (PGA), on-the-spot
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that and realize all or part of step that above-described embodiment method is carried
Suddenly the program that can be by completes to instruct relevant hardware, and described program can be stored in a kind of computer-readable storage medium
In matter, this program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, each functional unit in each embodiment of the present invention can be integrated in a processing module, it is also possible to
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a module.Above-mentioned integrated mould
Block both can realize to use the form of hardware, it would however also be possible to employ the form of software function module realizes.Described integrated module is such as
When fruit is using the form realization of software function module and as independent production marketing or use, it is also possible to be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read only memory, disk or CD etc..Although having shown that above and retouching
Embodiments of the invention are stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the present invention
System, above-described embodiment can be changed, revise, replace and become by those of ordinary skill in the art within the scope of the invention
Type.
Claims (16)
1. the image pickup method of a mobile terminal, it is characterised in that comprise the following steps:
Move according to default time interval controls photographic head module, and often complete once to move at described photographic head module
Time, gather goal object image to be captured；
Identify the shooting area of goal object described in described goal object image to be captured, and according to described goal object
Shooting area determines the main identification pixel of described goal object image to be captured；
According to the main identification pixel of the goal object image described to be captured gathered, generate the change curve of main identification pixel；
Judge whether the change curve of described main identification pixel meets pre-conditioned；
If the change curve of described main identification pixel meets described pre-conditioned, then stop the movement of described photographic head module.
2. the image pickup method of mobile terminal as claimed in claim 1, it is characterised in that at described stopping described photographic head module
Movement after, described method also includes:
Described goal object is shot by the current location according to the described photographic head module before stopping.
3. the image pickup method of mobile terminal as claimed in claim 1, it is characterised in that described according to default time interval control
Photographic head module processed moves, including:
Entered according to photographic head module described in described default time interval controls by micro-electromechanical optical stabilization system MEMS OIS
The movement of row different directions.
4. the image pickup method of mobile terminal as claimed in claim 1, it is characterised in that the described target to be captured of described identification
The shooting area of goal object described in things image, including:
Described goal object image to be captured is carried out contrast and brightness increasing processes, with from described target thing to be captured
Object image identifies the shooting area of described goal object.
5. the image pickup method of mobile terminal as claimed in claim 1, it is characterised in that the described bat according to described goal object
Take the photograph region and determine the main identification pixel of described goal object image to be captured, including:
Obtain the brightness value of all pixels in described shooting area, and calculate in described shooting area current pixel point with adjacent
Brightness value similarity between nearly pixel；
Determine the number more than or equal to the pixel of predetermined threshold value of the brightness value similarity described in described all pixels；
Judge brightness value similarity described in described all pixels more than or equal to the pixel of predetermined threshold value number whether
The number of the pixel of described predetermined threshold value it is less than more than brightness value similarity described in described all pixels；
Brightness value similarity described in the most described all pixels is more than or equal to the pixel of predetermined threshold value as institute
State main identification pixel；
If it is not, then brightness value similarity described in described all pixels is less than the pixel of described predetermined threshold value as described
Main identification pixel.
6. the image pickup method of mobile terminal as claimed in claim 1, it is characterised in that the described main identification pixel of described judgement
It is pre-conditioned whether change curve meets, including:
Change curve according to described main identification pixel, it is judged that described in controlling during described photographic head module moves
Whether the number of main identification pixel gradually decreases；
If the number of described main identification pixel gradually decreases, then judge that the change curve of described main identification pixel meets described pre-
If condition.
7. the image pickup method of mobile terminal as claimed in claim 6, it is characterised in that described method also includes:
If the number of described main identification pixel gradually increases, then perform described according to default time interval controls shooting head mould
The step that group moves.
8. the image pickup method of the mobile terminal as according to any one of claim 1 to 7, it is characterised in that described goal object
At least include in Quick Response Code, PPT, blackboard and blank any one.
9. the filming apparatus of a mobile terminal, it is characterised in that including:
Photographic head module control module, for moving according to default time interval controls photographic head module；
Image capture module, for when described photographic head module often completes once to move, gathers goal object figure to be captured
Picture；
Shooting area identification module, for identifying the shooting district of goal object described in described goal object image to be captured
Territory；
Main identification pixel determines module, for determining described goal object to be captured according to the shooting area of described goal object
The main identification pixel of image；
Change curve generation module, for the main identification pixel according to the goal object image described to be captured gathered, generates
The change curve of main identification pixel；
Judge module, for judging whether the change curve of described main identification pixel meets pre-conditioned；
Described photographic head module control module is additionally operable to judge that the change curve of described main identification pixel is full at described judge module
Foot the most described pre-conditioned time, stop the movement of described photographic head module.
10. the filming apparatus of mobile terminal as claimed in claim 9, it is characterised in that described device also includes:
Taking module, after stop the movement of described photographic head module in described photographic head module control module, according to stopping
Described goal object is shot by the current location of the described photographic head module before Zhi.
The filming apparatus of 11. mobile terminals as claimed in claim 9, it is characterised in that described photographic head module control module
Specifically for:
Entered according to photographic head module described in described default time interval controls by micro-electromechanical optical stabilization system MEMS OIS
The movement of row different directions.
The filming apparatus of 12. mobile terminals as claimed in claim 9, it is characterised in that described shooting area identification module has
Body is used for:
Described goal object image to be captured is carried out contrast and brightness increasing processes, with from described target thing to be captured
Object image identifies the shooting area of described goal object.
The filming apparatus of 13. mobile terminals as claimed in claim 9, it is characterised in that described main identification pixel determines module,
Including:
Acquiring unit, for obtaining the brightness value of all pixels in described shooting area；
Computing unit, for calculating in described shooting area the brightness value similarity between current pixel point and vicinity points；
First determines unit, for determining that brightness value similarity described in described all pixels is more than or equal to predetermined threshold value
The number of pixel；
Judging unit, for judging the pixel more than or equal to predetermined threshold value of the brightness value similarity described in described all pixels
Whether the number of point is more than brightness value similarity described in described all pixels is less than the individual of the pixel of described predetermined threshold value
Number；
Second determines unit, is more than or equal to the picture of predetermined threshold value for brightness value similarity described in described all pixels
The number of vegetarian refreshments is less than the number of the pixel of described predetermined threshold value more than brightness value similarity described in described all pixels
Time, brightness value similarity described in described all pixels is more than or equal to the pixel of predetermined threshold value as described main identification
Pixel；
Described second determines unit, is additionally operable to brightness value similarity described in described all pixels and is more than or equal to preset threshold
The number of the pixel of value is less than described predetermined threshold value less than or equal to brightness value similarity described in described all pixels
During the number of pixel, using brightness value similarity described in described all pixels less than described predetermined threshold value pixel as
Described main identification pixel.
The filming apparatus of 14. mobile terminals as claimed in claim 9, it is characterised in that described judge module includes:
First judging unit, for the change curve according to described main identification pixel, it is judged that enter controlling described photographic head module
During row is mobile, whether the number of described main identification pixel gradually decreases；
Second judging unit, for when the number of described main identification pixel gradually decreases, it is determined that the change of described main identification pixel
Change curve and meet described pre-conditioned.
The filming apparatus of 15. mobile terminals as claimed in claim 14, it is characterised in that described photographic head module control module
It is additionally operable to: when the number of described main identification pixel gradually increases, according to photographic head described in described default time interval controls
Module moves.
The filming apparatus of 16. mobile terminals as according to any one of claim 9 to 15, it is characterised in that described target thing
Thing at least includes any one in Quick Response Code, PPT, blackboard and blank.
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