CN106101554B - camera focusing method, device and terminal - Google Patents
camera focusing method, device and terminal Download PDFInfo
- Publication number
- CN106101554B CN106101554B CN201610615667.1A CN201610615667A CN106101554B CN 106101554 B CN106101554 B CN 106101554B CN 201610615667 A CN201610615667 A CN 201610615667A CN 106101554 B CN106101554 B CN 106101554B
- Authority
- CN
- China
- Prior art keywords
- defocus amount
- present frame
- frame
- photo
- sensitive cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 230000003287 optical effect Effects 0.000 claims description 11
- 230000006641 stabilisation Effects 0.000 claims description 10
- 238000011105 stabilization Methods 0.000 claims description 10
- 230000006870 function Effects 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
- 238000003860 storage Methods 0.000 description 9
- 206010010254 Concussion Diseases 0.000 description 7
- 230000009514 concussion Effects 0.000 description 7
- 210000003128 head Anatomy 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003733 optic disk Anatomy 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Classifications
-
- 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
- H04N23/67—Focus control based on electronic image sensor signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Abstract
The invention discloses a kind of camera focusing method, device and terminal.Wherein method includes：Detect shot using camera when, obtain the defocus amount for present frame that detects of phase difference detection part；Whether the defocus amount for judging to be directed to present frame is exceptional value；If the defocus amount for present frame is exceptional value, moved according to the defocus amount control photo-sensitive cell for present frame, so that the defocus amount for present frame is in normal range (NR).Realize by the mobile control to photo-sensitive cell so that the defocus amount that phase detecting section is detected will not be mutated, prevent the defocus values (defocus amount) that phase detecting section is calculated from excessively shaking, unstable etc., improve the usage experience of user.
Description
Technical field
The present invention relates to field of terminal technology, more particularly to a kind of camera focusing method, device and terminal.
Background technology
User using intelligent terminal during being shot, it is often necessary to is focused.Focused by intelligent terminal
System changes object distance and position apart, so that the process of subject imaging cleaning is exactly to focus.At present, focusing technology
There are many kinds, such as phase focuses technology, contrast focusing technology and laser focusing technology.Wherein, phase focusing technology because
Its speed of focusing is fast and is favored by increasing user.
In phase focusing technology, phase difference detection part is made up of in pairs left and right pixel.Intelligent terminal passes through left picture
Vegetarian refreshments obtains the first image and obtains the second image by right pixel, generates the view data ripple of the first image respectively afterwards
The view data waveform of shape and the second image, when the view data waveform and the view data waveform weight of the second image of the first image
During conjunction, captured picture is the most clear, therefore, and intelligent terminal be able to can be drawn according to the phase difference of two view data waveforms
Focusing position.
However, at present because the pixel (i.e. phase PD pixel) of phase difference detection part can be by noise, extraneous light
The various factor influence such as unstable, defocus values (defocus amount) concussion for causing phase difference detection part to calculate is severe, leads
Motor is caused also to shake back and forth, so as to cause the obvious shake of picture.Therefore, how noise, extraneous light it is unstable etc. because
Prevent defocus values (defocus amount) that phase difference detection part is calculated from excessively shaking to be one and urgently to be resolved hurrily ask in the case of element
Topic.
The content of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technical problem to a certain extent.
Therefore, first purpose of the present invention is to propose a kind of camera focusing method.This method passes through to photosensitive member
The mobile control of part, realizing the defocus amount that phase detecting section detects will not be mutated, and prevent phase detecting section from calculating
Defocus values (defocus amount) excessively shake, it is unstable etc., improve the usage experience of user.
Second object of the present invention is to propose a kind of camera focusing device.
Third object of the present invention is to propose a kind of terminal.
Fourth object of the present invention is to propose another terminal.
For up to above-mentioned purpose, the camera focusing method of first aspect present invention embodiment, including：Taken the photograph detecting to use
When being shot as head, the defocus amount for present frame that phase difference detection part is detected is obtained；Judge described for current
Whether the defocus amount of frame is exceptional value；If the defocus amount for present frame is exceptional value, according to described for current
The defocus amount control photo-sensitive cell of frame is moved, so that the defocus amount for present frame is in normal range (NR).
Camera focusing method according to embodiments of the present invention, detect shot using camera when, obtain phase
The defocus amount for present frame that potential difference detection part is detected, and whether the defocus amount for judging to be directed to present frame is exceptional value,
If the defocus amount for present frame is exceptional value, moved according to the defocus amount control photo-sensitive cell for present frame,
So that the defocus amount for present frame is in normal range (NR).I.e. during phase is focused, defocusing for present frame can determine whether
Whether amount is exceptional value, and when the defocus amount of present frame is exceptional value, photosensitive member is controlled according to the defocus amount for present frame
Part is moved, so that the defocus amount for present frame is in normal range (NR), i.e., it is real by the mobile control to photo-sensitive cell
The defocus amount that existing phase detecting section is detected will not be mutated, and prevent the defocus values that phase detecting section is calculated from (defocusing
Amount) excessively concussion, unstable etc., improve the usage experience of user.
According to one embodiment of present invention, whether the defocus amount described in the judgement for present frame is exceptional value, bag
Include：Obtain the defocus amount of at least one frame for before that the phase difference detection part is detected；Judge described for current
It is pre- whether the absolute value of the difference between the defocus amount of frame and the defocus amount of at least one frame for before is less than or equal to
If threshold value；If the absolute value of the difference is less than or equal to the predetermined threshold value, the defocusing for present frame is judged
Amount is not the exceptional value；If the absolute value of the difference is more than predetermined threshold value, the defocusing for present frame is judged
Measure as the exceptional value.
According to one embodiment of present invention, at least one described frame is five frames.
According to one embodiment of present invention, the defocus amount control photo-sensitive cell described in the basis for present frame is carried out
It is mobile, including：According to the defocus amount for present frame, photosensitive member is controlled by micro-electromechanical optical stabilization system MEMS OIS
Part carries out planar movement.
According to one embodiment of present invention, the defocus amount of present frame is directed to described in the basis, passes through micro-electromechanical optical
Stabilization system MEMS OIS control photo-sensitive cells are moved, including：When the defocus amount for present frame is negative, lead to
Crossing the MEMS OIS controls the photo-sensitive cell proximally to be translated to distal end；When the defocus amount for present frame is
During positive number, the photo-sensitive cell is controlled proximally to be translated from distal end by the MEMS OIS.
For up to above-mentioned purpose, the camera focusing device of second aspect of the present invention embodiment, including：Acquisition module, is used for
Detect shot using camera when, obtain the defocus amount for present frame that detects of phase difference detection part；Sentence
Disconnected module, for judging whether the defocus amount for present frame is exceptional value；Control module, in the judge module
When judging the defocus amount for present frame as exceptional value, entered according to the defocus amount control photo-sensitive cell for present frame
Row movement, so that the defocus amount for present frame is in normal range (NR).
Camera focusing device according to embodiments of the present invention, can be carried out detecting by acquisition module using camera
During shooting, the defocus amount for present frame that phase difference detection part is detected is obtained, judge module is judged for present frame
Whether defocus amount is exceptional value, if the defocus amount for present frame is exceptional value, control module is then according to for present frame
Defocus amount control photo-sensitive cell is moved, so that the defocus amount for present frame is in normal range (NR).Focused in phase
During, whether the defocus amount that can determine whether present frame is exceptional value, and when the defocus amount of present frame is exceptional value, according to pin
The defocus amount control photo-sensitive cell of present frame is moved, so that the defocus amount for present frame is in normal range (NR), i.e.,
By the mobile control to photo-sensitive cell, realize that the defocus amount that phase detecting section is detected will not be mutated, prevent phase-detection
The defocus values (defocus amount) that part is calculated excessively shake, unstable etc., improve the usage experience of user.
According to one embodiment of present invention, the judge module includes：Acquiring unit, for obtaining the phase difference inspection
Survey the defocus amount of at least one frame for before that part is detected；Judging unit, for judging the dissipating for present frame
Whether the absolute value of the difference between Jiao's amount and the defocus amount of at least one frame for before is less than or equal to predetermined threshold value；
Identifying unit, for when the absolute value of the difference is less than or equal to the predetermined threshold value, for present frame described in judgement
Defocus amount is not the exceptional value, and when the absolute value of the difference is more than predetermined threshold value, for present frame described in judgement
Defocus amount is the exceptional value.
According to one embodiment of present invention, at least one described frame is five frames.
According to one embodiment of present invention, the control module specifically for：According to the defocusing for present frame
Amount, controls photo-sensitive cell to carry out planar movement by micro-electromechanical optical stabilization system MEMS OIS.
According to one embodiment of present invention, the control module includes：First control unit, for working as in described be directed to
When the defocus amount of previous frame is negative, the photo-sensitive cell is controlled proximally to be translated to distal end by the MEMS OIS；The
Two control units, for when the defocus amount for present frame is positive number, being controlled by the MEMS OIS described photosensitive
Element is proximally translated from distal end.
For up to above-mentioned purpose, the terminal of third aspect present invention embodiment, including：Second aspect of the present invention embodiment is taken the photograph
As head focusing mechanism.
Terminal according to embodiments of the present invention, can detected using taking the photograph by the acquisition module in camera focusing device
When being shot as head, the defocus amount for present frame that phase difference detection part is detected is obtained, judge module judges to be directed to
Whether the defocus amount of present frame is exceptional value, if the defocus amount for present frame is exceptional value, then basis is directed to control module
The defocus amount control photo-sensitive cell of present frame is moved, so that the defocus amount for present frame is in normal range (NR).Exist
During phase is focused, whether the defocus amount that can determine whether present frame is exceptional value, and is exceptional value in the defocus amount of present frame
When, moved according to the defocus amount control photo-sensitive cell for present frame, so that the defocus amount for present frame is in normally
In the range of, i.e., by the mobile control to photo-sensitive cell, realize that the defocus amount that phase detecting section is detected will not be mutated, prevent
The defocus values (defocus amount) that phase detecting section is calculated excessively shake, unstable etc., improve the usage experience of user.
For up to above-mentioned purpose, the terminal of fourth aspect present invention embodiment, including：Housing；Processor；Memory；Circuit
Plate and power circuit；Wherein, the circuit board is placed in the interior volume that the housing is surrounded, the processor and the storage
Device is arranged on the circuit board；The power circuit, for being powered for each circuit or device of the terminal；The storage
Device is used to store executable program code；The processor by read the executable program code stored in the memory come
Operation program corresponding with executable program code, for performing：Detect shot using camera when, obtain phase
The defocus amount for present frame that potential difference detection part is detected；Whether judge the defocus amount for present frame is abnormal
Value；If the defocus amount for present frame is exceptional value, photosensitive member is controlled according to the defocus amount for present frame
Part is moved, so that the defocus amount for present frame is in normal range (NR).
Terminal according to embodiments of the present invention, detect shot using camera when, obtain phase difference detecting unit
The defocus amount for present frame that part is detected, and whether the defocus amount for judging to be directed to present frame is exceptional value, if for working as
The defocus amount of previous frame is exceptional value, then is moved according to the defocus amount control photo-sensitive cell for present frame, so that for working as
The defocus amount of previous frame is in normal range (NR).I.e. during phase is focused, whether the defocus amount that can determine whether present frame is different
Constant value, and when the defocus amount of present frame is exceptional value, moved according to the defocus amount control photo-sensitive cell for present frame,
So that the defocus amount for present frame is in normal range (NR), i.e., by the mobile control to photo-sensitive cell, realize phase-detection
The defocus amount that part is detected will not be mutated, prevent the defocus values (defocus amount) that phase detecting section is calculated from excessively shaking,
It is unstable etc., improve the usage experience of user.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and be readily appreciated that, wherein：
Fig. 1 is the flow chart of camera focusing method according to an embodiment of the invention；
Fig. 2 be it is according to an embodiment of the invention judge for present frame defocus amount whether be exceptional value flow
Figure；
Fig. 3 is the structural representation of camera focusing device according to an embodiment of the invention；
Fig. 4 is the structural representation of the camera focusing device according to a specific embodiment of the invention；
Fig. 5 is the structural representation of the camera focusing device according to another specific embodiment of the invention；
Fig. 6 is the structural representation of terminal according to an embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Below with reference to the accompanying drawings the camera focusing method, device and terminal of the embodiment of the present invention described.
Fig. 1 is the flow chart of camera focusing method according to an embodiment of the invention.It should be noted that of the invention
The camera focusing method of embodiment can be applied to camera focusing device, and the camera focusing device can be configured in terminal
In.Wherein, the terminal can have shoot function, for example, the terminal can be smart mobile phone, tablet personal computer, personal digital assistant
Deng the hardware device with various operating systems, intelligent digital camera etc. can also be.
As shown in figure 1, the camera focusing method can include：
S110, detect shot using camera when, obtain that phase difference detection part detects for current
The defocus amount of frame.
For example, it is assumed that the camera focusing method of the embodiment of the present invention can be applied to terminal, the terminal can be user
The camera application program with shoot function is provided, user can start the shooting work(of terminal by clicking on the camera application program
Can, when detecting user and being shot using camera, what the phase difference detection part in acquisition camera was detected
For the defocus amount (defocus values) of present frame.
Wherein, phase difference detection part detection for present frame defocus amount (defocus values) mode have a lot, as
A kind of phase difference detection part in example, camera module is made up of in pairs left and right pixel, can be obtained by left pixel
First image, the second image can be obtained by right pixel, can generate the view data waveform and of the first image respectively afterwards
The view data waveform of two images, finally, phase difference detection part calculate the view data waveform and the second image of the first image
View data waveform between phase difference (i.e. above-mentioned defocus amount).It is appreciated that the defocus amount of the above-mentioned present frame shown
Detection mode be only a kind of example, can also have other modes, will not be repeated here.
S120, whether the defocus amount for judging to be directed to present frame is exceptional value.
It is appreciated that each frame of phase focusing technology is required for calculating Defocus (defocusing) value (i.e. phase difference), and
Due to the pixel PIXEL of phase detecting section, by hot-tempered sound, LENS SHADING, (wherein, LENS optical characteristics are exactly at present
Center is bright, surrounding is dark, here it is so-called relative illumination RI, caused phenomenon is just SHADING) etc. influence, phase can be caused
Evil is gone through in the defocus value concussions that detection part is calculated, and causes motor also to shake back and forth, so as to cause the shake of picture bright
It is aobvious.
Therefore, in order to solve to be influenceed and cause the defocus values that calculate by factors such as external environment conditions during phase focusing
Concussion, it is unstable the problem of, the camera focusing method of the embodiment of the present invention can obtain what phase difference detection part be detected
Whether after the defocus amount of present frame, it is exceptional value for the defocus amount of present frame that can first judge this, if so, after then carrying out
Continuous step S130；If it is not, then continuing through the defocus amount that phase difference detection part calculates next frame.
As a kind of example, as shown in Fig. 2 whether the judgement is implementing for exceptional value for the defocus amount of present frame
Process may include following steps：
S210, obtains the defocus amount of at least one frame for before that phase difference detection part is detected.
It is appreciated that when phase difference detection part detects the defocus amount for present frame, all can be by the present frame
Defocus amount record, at least one frame before obtaining that phase difference detection part detects to be recorded subsequently through this
Defocus amount.
S220, judges for the defocus amount of present frame and for the exhausted of the difference between the defocus amount of at least one frame before
Whether predetermined threshold value is less than or equal to value.
It is appreciated that should gradually be incremented by or gradually pass in phase focus process, when the defocus amount calculated is normal
Subtract, until go to zero, and the difference for being gradually incremented by or gradually successively decreasing should not exceed certain value, the value is above-mentioned default threshold
Value, the predetermined threshold value can be by empirical value obtained from experiment.
For example, so that at least one frame is a frame as an example, occurring very in the defocus amount of present frame and the defocus amount of previous frame
The defocus amount defocus of large deviation, such as previous frame be -10, and the defocus amount defocus of present frame be 10 when, calculate work as
Difference between the defocus amount of previous frame and the defocus amount of previous frame is 20.
In order to ensure the accuracy and reasonability of judged result, as a kind of example, at least one above-mentioned frame is five
Frame.That is, it may be desired to which the defocus amount for obtaining above 5 frames to carry out difference comparsion with the defocus amount of present frame.
S230, if the absolute value of difference be less than or equal to predetermined threshold value, judges be directed to present frame defocus amount not as
Exceptional value.
S240, if the absolute value of difference is more than predetermined threshold value, judges the defocus amount for present frame as exceptional value.
If that is, the defocus amount difference of the defocus amount of present frame previous frame therewith is little, then can determine that present frame
Defocus amount be in normal range (NR) in, i.e., be exceptional value；If the defocus amount of present frame therewith previous frame defocus amount difference very
Greatly, then the defocus amount that can determine that for present frame is exceptional value.
S130, it is photosensitive according to the defocus amount control for present frame if the defocus amount for present frame is exceptional value
Element is moved, so that the defocus amount for present frame is in normal range (NR).
It should be noted that the camera focusing method of the embodiment of the present invention can be applied to the terminal with shoot function
In, the terminal can have camera module to realize shooting.As a kind of example, camera module module may include but not
It is limited to camera lens, motor and photo-sensitive cell sensor etc..In addition, in an embodiment of the present invention, the terminal can have microcomputer electric light
Stabilization system MEMS OIS are learned, wherein, micro-electromechanical optical stabilization system MEMS OIS can be connected with photo-sensitive cell.
Specifically, in one embodiment of the invention, according to the defocus amount for present frame, microcomputer electric light can be passed through
Learn stabilization system MEMS OIS control photo-sensitive cells and carry out planar movement.As a kind of example, when for the defocus amount of present frame
During for negative, photo-sensitive cell can be controlled proximally to be translated to distal end by MEMS OIS；When for the defocus amount of present frame
During for positive number, by MEMS OIS photo-sensitive cell can be controlled proximally to be translated from distal end.Thus, by using MEMS OIS
To control photo-sensitive cell to carry out planar movement, to make up unstable, the concussion of the defocus values that phase detecting section is calculated.
As a kind of example, above-mentioned micro-electromechanical optical stabilization system MEMS OIS may include fixed electrode and fixed electrode
The float electrode of cooperation and be fixedly connected the fixed electrode and float electrode can deformation connector, wherein, the fixed electrode
And float electrode be used for electrostatic force is produced in the presence of driving voltage, this can deformation connector can be used for the electrostatic force work
With the lower direction deformation moved along float electrode to allow the float electrode to move so as to controlling photo-sensitive cell to carry out planar movement.
For example, it is assumed that for present frame defocus amount be negative when, represent camera motor need from distal end to
Near-end is moved, this when, photo-sensitive cell can be controlled proximally to be translated to distal end by MEMS OIS；When for present frame
Defocus amount be positive number when, can by MEMS OIS control photo-sensitive cell from distal end proximally be translated, thus, by ought
The defocus amount of previous frame judged, and when judging the defocus amount of present frame for exceptional value, according to the defocus amount control of the present frame
Photo-sensitive cell processed is moved, so that the defocus amount that phase detecting section is detected will not be mutated, the reverse value particularly become,
So as to avoid defocus amount (defocus) concussion, unstable appearance.
Camera focusing method according to embodiments of the present invention, detect shot using camera when, obtain phase
The defocus amount for present frame that potential difference detection part is detected, and whether the defocus amount for judging to be directed to present frame is exceptional value,
If the defocus amount for present frame is exceptional value, moved according to the defocus amount control photo-sensitive cell for present frame,
So that the defocus amount for present frame is in normal range (NR).I.e. during phase is focused, defocusing for present frame can determine whether
Whether amount is exceptional value, and when the defocus amount of present frame is exceptional value, photosensitive member is controlled according to the defocus amount for present frame
Part is moved, so that the defocus amount for present frame is in normal range (NR), i.e., it is real by the mobile control to photo-sensitive cell
The defocus amount that existing phase detecting section is detected will not be mutated, and prevent the defocus values that phase detecting section is calculated from (defocusing
Amount) excessively concussion, unstable etc., improve the usage experience of user.
Corresponding with the camera focusing method that above-mentioned several embodiments are provided, a kind of embodiment of the invention also provides one
Kind of camera focusing device, due to taking the photograph for camera focusing device provided in an embodiment of the present invention and above-mentioned several embodiments offers
Picture head focusing method is corresponding, therefore is also applied for taking the photograph for the present embodiment offer in the embodiment of foregoing camera focusing method
As head focusing mechanism, it is not described in detail in the present embodiment.Fig. 3 is camera focusing dress according to an embodiment of the invention
The structural representation put.As shown in figure 3, the camera focusing device can include：Acquisition module 310, judge module 320 and control
Molding block 330.
Specifically, acquisition module 310 can be used for detect shot using camera when, acquisition phase difference detecting unit
The defocus amount for present frame that part is detected.
Judge module 320 can be used for whether the defocus amount for judging to be directed to present frame is exceptional value.
As a kind of example, as shown in figure 4, the judge module 320 may include acquiring unit 321, judging unit 322 and sentence
Order member 323.Wherein, acquiring unit 321 is used to obtaining phase difference detection part detects for before at least one frame
Defocus amount.Judging unit 322 is used to judge for the defocus amount of present frame and between the defocus amount of at least one frame before
Difference absolute value whether be less than or equal to predetermined threshold value.Identifying unit 323 is used to be less than or equal in the absolute value of difference
During predetermined threshold value, the defocus amount for present frame is judged not as exceptional value, and when the absolute value of difference is more than predetermined threshold value, is sentenced
Surely the defocus amount for being directed to present frame is exceptional value.Wherein, in an embodiment of the present invention, at least one above-mentioned frame is five frames.
Control module 330 can be used for when judge module 320 judges to be directed to the defocus amount of present frame as exceptional value, according to pin
The defocus amount control photo-sensitive cell of present frame is moved, so that the defocus amount for present frame is in normal range (NR).Tool
For body, in one embodiment of the invention, control module 330 can be according to the defocus amount for present frame, by micro electronmechanical
Optical anti-vibration system MEMS OIS control photo-sensitive cells carry out planar movement.
As a kind of example, as shown in figure 5, the control module 330 can include the first control unit 331 and the second control
Unit 332.Wherein, the first control unit 331 is used to, when the defocus amount for present frame is negative, control by MEMS OIS
Photo-sensitive cell is proximally translated to distal end.Second control unit 332 is used for when the defocus amount for present frame is positive number,
Photo-sensitive cell is controlled proximally to be translated from distal end by MEMS OIS.
Camera focusing device according to embodiments of the present invention, can be carried out detecting by acquisition module using camera
During shooting, the defocus amount for present frame that phase difference detection part is detected is obtained, judge module is judged for present frame
Whether defocus amount is exceptional value, if the defocus amount for present frame is exceptional value, control module is then according to for present frame
Defocus amount control photo-sensitive cell is moved, so that the defocus amount for present frame is in normal range (NR).Focused in phase
During, whether the defocus amount that can determine whether present frame is exceptional value, and when the defocus amount of present frame is exceptional value, according to pin
The defocus amount control photo-sensitive cell of present frame is moved, so that the defocus amount for present frame is in normal range (NR), i.e.,
By the mobile control to photo-sensitive cell, realize that the defocus amount that phase detecting section is detected will not be mutated, prevent phase-detection
The defocus values (defocus amount) that part is calculated excessively shake, unstable etc., improve the usage experience of user.
In order to realize above-described embodiment, the invention also provides a kind of terminal, including：Any of the above-described embodiment of the invention
Described camera focusing device.
In order to realize above-described embodiment, the invention also provides another terminal.
Fig. 6 is the structural representation of terminal according to an embodiment of the invention.As shown in fig. 6, the terminal can include：
Housing 61；Processor 62；Memory 63；Circuit board 64 and power circuit 65；Wherein, the circuit board 64 is placed in the housing
61 interior volumes surrounded, the processor 62 and the memory 63 are arranged on the circuit board 64；The power circuit
65, for being powered for each circuit or device of the terminal；The memory 63 is used to store executable program code；It is described
Processor 62 is corresponding with executable program code to run by reading the executable program code stored in the memory 63
Program, for perform：
S110 ', detect shot using camera when, obtain that phase difference detection part detects for current
The defocus amount of frame.
S120 ', whether the defocus amount for judging to be directed to present frame is exceptional value.
S130 ', it is photosensitive according to the defocus amount control for present frame if the defocus amount for present frame is exceptional value
Element is moved, so that the defocus amount for present frame is in normal range (NR).
Terminal according to embodiments of the present invention, detect shot using camera when, obtain phase difference detecting unit
The defocus amount for present frame that part is detected, and whether the defocus amount for judging to be directed to present frame is exceptional value, if for working as
The defocus amount of previous frame is exceptional value, then is moved according to the defocus amount control photo-sensitive cell for present frame, so that for working as
The defocus amount of previous frame is in normal range (NR).I.e. during phase is focused, whether the defocus amount that can determine whether present frame is different
Constant value, and when the defocus amount of present frame is exceptional value, moved according to the defocus amount control photo-sensitive cell for present frame,
So that the defocus amount for present frame is in normal range (NR), i.e., by the mobile control to photo-sensitive cell, realize phase-detection
The defocus amount that part is detected will not be mutated, prevent the defocus values (defocus amount) that phase detecting section is calculated from excessively shaking,
It is unstable etc., improve the usage experience of user.
In the description of the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implies relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Any process described otherwise above or method description are construed as in flow chart or herein, represent to include
Module, fragment or the portion of the code of one or more executable instructions for the step of realizing specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not be by shown or discussion suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use
In the order list for the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress for combining these instruction execution systems, device or equipment and using
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wirings
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, can even is that can be in the paper of printing described program thereon or other are suitable for computer-readable medium
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
Rapid to can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as
Fruit is realized using in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..Although having been shown and retouching above
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, one of ordinary skill in the art can be changed to above-described embodiment, change, replace and become within the scope of the invention
Type.
Claims (9)
1. a kind of camera focusing method, it is characterised in that comprise the following steps：
Detect shot using camera when, obtain that phase difference detection part detects defocusing for present frame
Amount；
Judge whether the defocus amount for present frame is exceptional value；
If the defocus amount for present frame is exceptional value, photosensitive member is controlled according to the defocus amount for present frame
Part is moved, so that the defocus amount for present frame is in normal range (NR)；
Wherein, whether the defocus amount described in the judgement for present frame is exceptional value, including：
Obtain the defocus amount of at least one frame for before that the phase difference detection part is detected；
Judge the exhausted of the difference being directed between the defocus amount of the defocus amount of present frame and at least one frame for before
Whether predetermined threshold value is less than or equal to value；
If the absolute value of the difference is less than or equal to the predetermined threshold value, the defocus amount for present frame is judged not
For the exceptional value；
If the absolute value of the difference is more than predetermined threshold value, judge the defocus amount for present frame as the exception
Value.
2. camera focusing method as claimed in claim 1, it is characterised in that wherein, at least one described frame is five frames.
3. camera focusing method as claimed in claim 1, it is characterised in that defocusing for present frame described in the basis
Amount control photo-sensitive cell is moved, including：
According to the defocus amount for present frame, photo-sensitive cell is controlled to carry out by micro-electromechanical optical stabilization system MEMS OIS
Planar movement.
4. camera focusing method as claimed in claim 3, it is characterised in that defocusing for present frame described in the basis
Amount, controls photo-sensitive cell to move by micro-electromechanical optical stabilization system MEMS OIS, including：
When the defocus amount for present frame is negative, by the MEMS OIS control the photo-sensitive cell proximally to
Distal end is translated；
When the defocus amount for present frame is positive number, by the MEMS OIS control the photo-sensitive cell from distal end to
Near-end is translated.
5. a kind of camera focusing device, it is characterised in that including：
Acquisition module, for detect shot using camera when, obtain being directed to of detecting of phase difference detection part
The defocus amount of present frame；
Judge module, for judging whether the defocus amount for present frame is exceptional value；
Control module, for when the judge module judges the defocus amount for present frame as exceptional value, according to described
Moved for the defocus amount control photo-sensitive cell of present frame, so that the defocus amount for present frame is in normal range (NR)
It is interior；
Wherein, the judge module includes：
Acquiring unit, for obtaining the defocus amount of at least one frame for before that the phase difference detection part is detected；
Judging unit, for judge the defocus amount for present frame and at least one frame for before defocus amount it
Between difference absolute value whether be less than or equal to predetermined threshold value；
Identifying unit, for when the absolute value of the difference is less than or equal to the predetermined threshold value, judging described for current
The defocus amount of frame is not the exceptional value, and when the absolute value of the difference is more than predetermined threshold value, judges described for current
The defocus amount of frame is the exceptional value.
6. camera focusing device as claimed in claim 5, it is characterised in that wherein, at least one described frame is five frames.
7. camera focusing device as claimed in claim 5, it is characterised in that the control module specifically for：
According to the defocus amount for present frame, photo-sensitive cell is controlled to carry out by micro-electromechanical optical stabilization system MEMS OIS
Planar movement.
8. camera focusing device as claimed in claim 7, it is characterised in that the control module includes：
First control unit, for when the defocus amount for present frame is negative, institute to be controlled by the MEMS OIS
Photo-sensitive cell is stated proximally to be translated to distal end；
Second control unit, for when the defocus amount for present frame is positive number, institute to be controlled by the MEMS OIS
Photo-sensitive cell is stated proximally to be translated from distal end.
9. a kind of terminal, it is characterised in that including：Camera focusing device as any one of claim 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615667.1A CN106101554B (en) | 2016-07-29 | 2016-07-29 | camera focusing method, device and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615667.1A CN106101554B (en) | 2016-07-29 | 2016-07-29 | camera focusing method, device and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106101554A CN106101554A (en) | 2016-11-09 |
| CN106101554B true CN106101554B (en) | 2017-08-08 |
Family
ID=57479898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610615667.1A Expired - Fee Related CN106101554B (en) | 2016-07-29 | 2016-07-29 | camera focusing method, device and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106101554B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111556247B (en) * | 2020-05-07 | 2021-08-06 | 展讯通信（上海）有限公司 | DCC acquisition method, DCC focusing method and system, camera module and terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101193209A (en) * | 2006-11-28 | 2008-06-04 | 索尼株式会社 | Imaging device |
| US7822333B2 (en) * | 2006-03-01 | 2010-10-26 | Nikon Corporation | Focus adjustment device, imaging device and focus adjustment method |
| CN101950063A (en) * | 2009-07-10 | 2011-01-19 | 佛山普立华科技有限公司 | Automatic focusing system and automatic focusing method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08146286A (en) * | 1994-11-18 | 1996-06-07 | Nikon Corp | Automatic focusing camera |
| WO2014080682A1 (en) * | 2012-11-22 | 2014-05-30 | 富士フイルム株式会社 | Image-capturing device, and focusing method and focusing control program for said device |
| CN105007420B (en) * | 2015-07-14 | 2018-09-04 | 广东欧珀移动通信有限公司 | A kind of focusing method and mobile terminal |
-
2016
- 2016-07-29 CN CN201610615667.1A patent/CN106101554B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7822333B2 (en) * | 2006-03-01 | 2010-10-26 | Nikon Corporation | Focus adjustment device, imaging device and focus adjustment method |
| CN101193209A (en) * | 2006-11-28 | 2008-06-04 | 索尼株式会社 | Imaging device |
| CN101950063A (en) * | 2009-07-10 | 2011-01-19 | 佛山普立华科技有限公司 | Automatic focusing system and automatic focusing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106101554A (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101621625B (en) | Image pickup apparatus | |
| CN101674411B (en) | Image capturing apparatus, method of determining presence or absence of image area, and recording medium | |
| CN105554403B (en) | Control method, control device and electronic device | |
| CN101621626B (en) | Image pickup apparatus and auto-focus detection method | |
| CN105593737A (en) | Focal point detection device and focal point detection method | |
| JP2008191683A (en) | Imaging apparatus and imaging method | |
| CN103048846B (en) | Focus-regulating device and control method thereof | |
| JP4721434B2 (en) | Imaging apparatus and control method thereof | |
| CN106170064A (en) | Camera focusing method, system and electronic equipment | |
| CN106713750A (en) | Focusing control method and apparatus, electronic device and terminal equipment | |
| CN105915803A (en) | Shooting method and system based on sensor | |
| CN110199318B (en) | Driver state estimation device and driver state estimation method | |
| CN106210527A (en) | The PDAF calibration steps moved based on MEMS and device | |
| CN110677580B (en) | Shooting method, shooting device, storage medium and terminal | |
| US9781331B2 (en) | Imaging apparatus, and control method thereof | |
| CN106101554B (en) | camera focusing method, device and terminal | |
| CN106412435A (en) | Focusing method and apparatus, and mobile terminal | |
| JP2005077959A5 (en) | ||
| CN105681668B (en) | Control method, control device and electronic device | |
| CN103988107A (en) | Imaging device, method for controlling same, and program | |
| JP2021196643A (en) | Inference device, imaging device, learning device, inference method, learning method and program | |
| CN106657758A (en) | Photographing method, photographing device and terminal equipment | |
| CN105763805B (en) | Control method, control device and electronic device | |
| US12015846B2 (en) | Imaging apparatus with autofocus control based on movement tendency | |
| JP2008089811A (en) | Imaging apparatus and control method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 |