CN106921823A - Imageing sensor, camera module and terminal device - Google Patents
Imageing sensor, camera module and terminal device Download PDFInfo
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- CN106921823A CN106921823A CN201710297621.4A CN201710297621A CN106921823A CN 106921823 A CN106921823 A CN 106921823A CN 201710297621 A CN201710297621 A CN 201710297621A CN 106921823 A CN106921823 A CN 106921823A
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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
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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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
- H04N23/67—Focus control based on electronic image sensor signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
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Abstract
The invention discloses a kind of imageing sensor, camera module and terminal device, wherein, imageing sensor includes：Photosensitive unit array, the filter unit array being arranged on the photosensitive unit array, and the microlens array on the filter unit array；Wherein, the photosensitive unit array includes the M first focusing photosensitive units parallel to each other to center line, and the N second focusing photosensitive units parallel to each other to center line, and a lenticule unit covers a filter unit and a pair of focusing photosensitive units；A pair first center lines of focusing photosensitive unit, the angle of cut with a pair second centreline spaces of focusing photosensitive unit is more than 0 degree, and M and N is the positive integer more than or equal to 1.It is phase difference of the detection pixel in multiple directions by setting the multipair focusing photosensitive unit with various arrangement direction on photosensitive unit array, speed, precision and the degree of accuracy that raising double-core is focused provide hardware foundation.
Description
Technical field
The present invention relates to technical field of image processing, more particularly to a kind of imageing sensor, camera module and terminal device.
Background technology
Be divided into two for the pixel of imageing sensor by double-core both full-pixel focusing technology, there is two photoelectricity in a pixel
Diode, can efficiently accomplish phase difference detection on the premise of any pixel is not covered.Therefore compared to traditional focusing method, profit
Focused with the sensor of a pixel only one of which photodiode, the focusing precision and speed of double-core both full-pixel focusing technology
Du Genggao, and due to that need not sacrifice imaging pixel, the effective range of focusing is also wider.
However, the focusing accuracy and speed of existing double-core both full-pixel focusing technology still have much room for improvement.
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 application is to propose a kind of imageing sensor, set by photosensitive unit array
The multipair focusing photosensitive unit with various arrangement direction is put, is phase difference of the detection pixel in multiple directions, raising double-core
The speed of focusing, precision and the degree of accuracy provide hardware foundation.
Second purpose of the application is to propose a kind of camera module.
3rd purpose of the application is to propose a kind of terminal device.
In order to solve the above problems, the application first aspect proposes a kind of imageing sensor, including：Photosensitive unit array,
It is arranged on the filter unit array on the photosensitive unit array, and the lenticule battle array on the filter unit array
Row；
Wherein, the photosensitive unit array includes the M first focusing photosensitive units parallel to each other to center line, and N pairs
Center line the second focusing photosensitive unit parallel to each other, a lenticule unit covers a filter unit and a pair of focusings are photosensitive
Unit；
A pair first center lines of focusing photosensitive unit, the angle of cut with a pair second centreline spaces of focusing photosensitive unit is big
In 0 degree, M and N is the positive integer more than or equal to 1.
The imageing sensor that the embodiment of the present application is provided, including：Photosensitive unit array, it is arranged on photosensitive unit array
Filter unit array, and the microlens array on filter unit array, have by being set on photosensitive unit array
The multipair focusing photosensitive unit in various arrangement direction is detection pixel in the phase difference of multiple directions, improves double-core focusing
Speed, precision and the degree of accuracy provide hardware foundation.
In order to solve the above problems, the application second aspect embodiment proposes a kind of camera module, including such as first aspect
Described imageing sensor.
The embodiment of the present application provide camera module in, imageing sensor include photosensitive unit array, be arranged on it is photosensitive
Filter unit array in cell array, and the microlens array on filter unit array, by photosensitive unit battle array
Multipair focusing photosensitive unit with various arrangement direction is set on row, phase of the detection pixel in multiple directions is realized
Difference, improves speed, precision and the degree of accuracy of double-core focusing.
In order to solve the above problems, the application third aspect embodiment proposes a kind of terminal device, including housing, circuit
Plate, camera module and power circuit, wherein, the circuit board is placed in the interior volume that the housing is surrounded；The power supply electricity
Road, powers for each circuit or device for the terminal device.
The camera module includes imageing sensor, and described image sensor includes：Photosensitive unit array, be arranged on it is described
Filter unit array on photosensitive unit array, and the microlens array on the filter unit array；
Wherein, the photosensitive unit array includes M first focusing photosensitive unit and the N centerings parallel to each other to center line
Heart line the second focusing photosensitive unit parallel to each other, a lenticule unit covers a filter unit and a pair of photosensitive lists of focusing
Unit, wherein, the center line of each pair focusing photosensitive unit is parallel with the orientation of this pair focusing photosensitive unit；
A pair first center lines of focusing photosensitive unit, the angle of cut with a pair second centreline spaces of focusing photosensitive unit is big
In 0 degree, M and N is the positive integer more than or equal to 1.
The embodiment of the present application provide terminal device in, camera module include photosensitive unit array, be arranged on it is described photosensitive
Filter unit array in cell array, and the microlens array on the filter unit array imageing sensor,
By setting the multipair focusing photosensitive unit with various arrangement direction on photosensitive unit array, and using the different rows for reading
The output valve of the focusing photosensitive unit of column direction, is focused, and improves speed, precision and the degree of accuracy of double-core focusing.
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 practice of the invention.
Brief description of the drawings
The above-mentioned and/or additional aspect of the present invention 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 burnt image sensor architecture schematic diagram of traditional double verification；
Fig. 2 a are the profiles of the imageing sensor of the one embodiment according to the application；
Fig. 2 b are the top views of the imageing sensor of the one embodiment according to the application；
Fig. 3 is photosensitive unit distribution schematic diagram of focusing in imageing sensor according to one embodiment of the application；
Fig. 4 is photosensitive unit distribution schematic diagram of focusing in imageing sensor according to another embodiment of the application；
Fig. 5 is the schematic diagram of the camera module of the one embodiment according to the application；
Fig. 6 is the flow chart of the camera module image pickup processing method of the application one embodiment；
Fig. 7 is the flow chart of the camera module image pickup processing method of the application another embodiment；
Fig. 8 is the structure chart of the camera module camera treatment device of the application one embodiment；
Fig. 9 is the structure chart of the camera module camera treatment device of the application another embodiment；
Figure 10 is the structure chart of the terminal device that the application one embodiment is provided.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, 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 imageing sensor of the embodiment of the present invention, camera module image pickup processing method are described, device, is taken the photograph
As module and terminal device.
Double-core both full-pixel focusing technology is state-of-the-art focusing technology, the double-core that the focusing technology is used in the market
Focusing sensor construction is as shown in figure 1, correspond to two photodiodes under each lenticule (circle represents lenticule in Fig. 1).
When carrying out imaging, " 1 " is added acquisition single component pixels value with the value of " 2 ".When carrying out focusing process, " 1 " is read respectively
The value of " 2 ", the drive volume and driving direction of camera lens can be calculated by the phase difference for calculating between the two.
All it is and to arrangement due to two photodiodes in photosensitive unit of in current imageing sensor, focusing,
Therefore, the phase difference of pixel horizontal direction can only be detected.
In order to solve the problems, such as that existing double-core both full-pixel focusing technology can only detect the phase difference of pixel horizontal direction, this
Invention proposes a kind of imageing sensor and camera module image pickup processing method, by the image sensor, setting multiple light
The different focusing photosensitive unit of electric diode orientation, to detect phase difference of the pixel in multiple directions, effectively improves
Focusing speed, while improve precision and the degree of accuracy of double-core focusing.
Fig. 2 a and Fig. 2 b are combined first, and the imageing sensor that the embodiment of the present application is provided is described in detail.
Fig. 2 a are the profiles of the imageing sensor of the one embodiment according to the application, and Fig. 2 b are according to the application
The top view of the imageing sensor of individual embodiment.Fig. 2 a are only illustrated with parts of images sensor.
As shown in Figure 2 a and 2 b, the imageing sensor 100 includes photosensitive unit array 10, filter unit array 20 and micro-
Lens array 30.
Wherein, filter unit array 20 is arranged on photosensitive unit array 10, and microlens array 30 is located at filter unit battle array
On row 20.Photosensitive unit array 10 includes that the M first focusing photosensitive units 11 parallel to each other to center line and N are mutual to center line
The second parallel focusing photosensitive unit 12, a lenticule unit 31 covers a filter unit 21 and a pair of photosensitive lists of focusing
Unit, wherein, the center line of each pair focusing photosensitive unit is parallel with the orientation of this pair focusing photosensitive unit.
Wherein, a pair first center lines of focusing photosensitive unit 11, with a pair second center lines of focusing photosensitive unit 12
Between the angle of cut be more than 0 degree, M and N is the positive integer more than or equal to 1.
In the embodiment of the present application, first focusing photosensitive unit 11 center line and second focusing photosensitive unit 12 in
Heart line, refers to the center line between photodiode 111 and photodiode 112 in Fig. 2 a, and in Fig. 2 b between " 1 " and " 2 "
Center line.
In embodiments of the present invention, filter unit array 20 uses Bayer structure, can be using biography using Bayer structure
System processes picture signal for the algorithm of Bayer structure, without doing big adjustment on hardware configuration.Each filters single
A pair of focusing photosensitive units of the correspondence of unit 21, i.e., a pair of the filter units 21 of focusing photosensitive unit correspondence same color.A pair of focusings
Photosensitive unit correspondence 2 sub- pixels and two photodiodes 111 and 112, " 1 " and " 2 " in difference corresponding diagram 2b.
It is photosensitive with a pair second focusings due to a pair first center lines of focusing photosensitive unit 11 in the embodiment of the present application
The angle of cut of the centreline space of unit 12 is more than 0 degree, that is to say, that the M in photosensitive unit array 10 is to the first focusing photosensitive unit
11 orientation from N to the second focusing photosensitive unit 12 in imageing sensor 100 is different.
So as to when the imageing sensor 100 provided using the embodiment of the present application is focused, in photosensitive unit array 10
In, after corresponding two photodiodes of each pair focusing photosensitive unit gather signal respectively, due to being wrapped in photosensitive unit array 10
Containing the different focusing photosensitive unit of orientation, therefore, it can to detect phase difference and deviation of the pixel in two different directions
Direction, so as to accurately calculate direction and distance that camera lens should be moved, and then completes focusing.Compared to existing double-core both full-pixel
Focusing technology, only by detecting pixel phase difference in the horizontal direction and bias direction, determines the direction that camera lens should be moved
And distance, the imageing sensor 100 provided using the embodiment of the present application, focusing precision and the degree of accuracy are higher.
It is understood that in the photosensitive unit array 10 of the embodiment of the present application, M is to the first focusing photosensitive unit 11 and N
Second focusing photosensitive unit 12 can be configured on imageing sensor 100 with any different orientation.For example, M pairs
First focusing photosensitive unit 11 is configured in the way of the horizontal direction parallel of its center line and imageing sensor 100, N is to the
Two focusing photosensitive units 12 are configured in its center line mode parallel with certain diagonal of imageing sensor 100, or,
M is configured to the first focusing photosensitive unit 11 in its center line mode vertical with the horizontal direction of imageing sensor 100, N
Second focusing photosensitive unit 12 is configured in its center line mode parallel with certain diagonal of imageing sensor 100,
Etc..
In a kind of preferably way of realization of the application, the center line and each pair second of the focusing photosensitive unit 11 of each pair first
The central axis of focusing photosensitive unit 12, so as to when being focused, the first focusing focusing of photosensitive unit 11 and second is photosensitive
Unit 12, can detect each pixel in two phase differences of mutually perpendicular direction, because the phase difference of both direction is mutual
Mutually unrelated, such that it is able to phase difference directly according to both direction, quick calculating camera lens should be to mobile distance, so that quickly
Complete focusing.
When implementing, the logarithm M of the first focusing photosensitive unit 11, the logarithm N with the second focusing photosensitive unit 12 can be with
It is configured as needed.Specifically, the logarithm N of the focusing photosensitive units 12 of logarithm M and second of the first focusing photosensitive unit 11
Can be with equal, it is also possible to, it is not restricted herein.
Wherein, during M=N, imageing sensor 100 in the two directions it is attainable focusing precision and the degree of accuracy uniformity
More preferably.
It should be noted that as shown in Figure 2 b, all photosensitive unit arrays 10 on imageing sensor 100 can be respectively
The first focusing photosensitive unit 11 and the second focusing photosensitive unit 12 are set to, to realize that double-core both full-pixel is focused.And M is to first pair
Burnt photosensitive unit 11 and N can be distributed on imageing sensor 100 to the second focusing photosensitive unit 12 with arbitrary form.Such as
The first focusing focusing photosensitive unit 12 of photosensitive unit 11 second, can also be disposed on imageing sensor 100.
In a kind of possible way of realization of the application, M is to the first focusing photosensitive unit 11 and N to the second photosensitive list of focusing
Unit 12, can be separately positioned on the vertical center line and horizontal center line of imageing sensor 100.
Or, M, to the second focusing photosensitive unit 12, can also be separately positioned on institute to the first focusing photosensitive unit 11 and N
Two groups of imageing sensor 100 are stated on sideline.
As an example it is assumed that M=7, N=6, center lines and imageing sensor 100 of the M to the first focusing photosensitive unit 11
Horizontal direction parallel, N are vertical with the horizontal direction of imageing sensor 100 to the center line of the second focusing photosensitive unit 12.Then such as
Shown in Fig. 3, M can be arranged on the vertical center line of imageing sensor 100 to the first focusing photosensitive unit 11, and N is to second pair
Burnt photosensitive unit 12 can be arranged on the horizontal center line of imageing sensor 100.Or, it is also possible to by M to the first focusing sense
Light unit 11 is arranged on the horizontal center line of imageing sensor 100, and N is arranged on image sensing to the second focusing photosensitive unit 12
On the vertical center line of device 100.
In addition, M sets to the second focusing photosensitive unit 12 to the first focusing photosensitive unit 11 and N on imageing sensor 100
Dense degree when putting, it is also possible to be configured as needed, for example, M can be passed to the first focusing photosensitive unit 11 in image
The middle dense distribution of sensor 100, N to second focusing photosensitive unit 12 can in the scattered distribution of the surrounding of imageing sensor 100,
Etc..
It should be noted that because user is when being shot, it will usually subject is located at the zone line of image.
Therefore, when focusing photosensitive unit is set on the image sensor, the vertical center line and level of imageing sensor can be arranged on
The density of the focusing photosensitive unit on center line, more than be arranged on imageing sensor two groups to the focusing photosensitive unit on sideline
Density, so as in shooting process, can preferentially obtain the phase information at picture center, in the case where image quality is not influenceed,
Focusing speed can be effectively improved.
By above-mentioned analysis, by the photosensitive unit array 10 of imageing sensor 100, setting two kinds of arrangement sides
To different focusing photosensitive units, you can two photodiodes included in each pair focusing photosensitive unit gather signal respectively
Afterwards, by detecting phase difference and bias direction of the pixel in two different directions, the side that camera lens should be moved accurately is calculated
To and distance so that complete focusing.In a kind of possible way of realization of the application, can also in photosensitive unit array 10,
The focusing photosensitive unit of the orientation of three kinds or more is set, so that the precision and the degree of accuracy of focusing are higher.
That is, can also include in photosensitive unit array 10：3rd focusing photosensitive unit L parallel to each other to center line, L is
Positive integer more than or equal to 1.
Wherein, a pair the 3rd focusing photosensitive units, are covered by a filter unit 21 and a lenticule unit 31 respectively；
A pair the 3rd center lines of focusing photosensitive unit, with a pair first center lines of focusing photosensitive unit 11, and a pair
The angle of cut of the centreline space of the second focusing photosensitive unit 12 is respectively greater than 0 degree.
For example, it is assumed that M=12, N=16, L=36, then M is in the first focusing photosensitive unit 11
Heart line can be in 45 degree angles with the horizontal direction of imageing sensor 100, and N can be with to the second center line for focusing photosensitive unit 12
The horizontal direction parallel of imageing sensor 100, L can be with imageing sensor 100 to the center line of the 3rd focusing photosensitive unit
Horizontal direction is vertical.
When implementing, in photosensitive unit array 10, the different focusing sense in two kinds of photodiode array directions is set
Light unit be similar to, M to first focusing photosensitive unit 11, N to second focusing photosensitive unit 12 and L to the 3rd focusing photosensitive unit,
The optional position on imageing sensor 100 can also be arranged on.
The photosensitive list for example, M focuses to the second focusing photosensitive unit 12 and L to the first focusing photosensitive unit 11, N to the 3rd
Unit, can be separately positioned on the horizontal center line of imageing sensor 100, the first diagonal and the second diagonal.
Or, M is to the first focusing photosensitive unit 11, N to the second focusing photosensitive unit 12 and L to the 3rd photosensitive list of focusing
Unit, can be separately positioned on the vertical center line of imageing sensor 100, the first diagonal and the second diagonal, etc..
The imageing sensor that the embodiment of the present application is provided, including：Photosensitive unit array, it is arranged on photosensitive unit array
Filter unit array, and the microlens array on filter unit array, have by being set on photosensitive unit array
The multipair focusing photosensitive unit in various arrangement direction is detection pixel in the phase difference of multiple directions, improves double-core focusing
Speed, precision and the degree of accuracy provide hardware foundation.
Based on the structure of imageing sensor 100 in Fig. 1-Fig. 4, the embodiment of the present application also proposes a kind of camera module.
As shown in figure 5, camera module 500 includes imageing sensor 100.
Specifically, imageing sensor 100 includes：Photosensitive unit array 10, it is arranged on the photosensitive unit array 10
Filter unit array 20, and the microlens array 30 on the filter unit array 20；
Wherein, the photosensitive unit array 10 includes M to the first focusing photosensitive unit 11 and N to the second photosensitive list of focusing
Unit 12, a lenticule unit 31 covers a filter unit and a pair of focusing photosensitive units, wherein, each pair focusing photosensitive unit
Center line and this pair focusing photosensitive unit orientation it is parallel；
A pair first center lines of focusing photosensitive unit 11, with a pair second friendships of the centreline space of focusing photosensitive unit 12
Angle is more than 0 degree, and M and N is the positive integer more than or equal to 1.
It should be noted that the foregoing explanation to image sensor embodiment is also applied for the shooting mould of the embodiment
Group, its realization principle is similar to, and here is omitted.
The embodiment of the present application provide camera module in, imageing sensor include photosensitive unit array, be arranged on it is photosensitive
Filter unit array in cell array, and the microlens array on filter unit array, by photosensitive unit battle array
Multipair focusing photosensitive unit with various arrangement direction is set on row, phase of the detection pixel in multiple directions is realized
Difference, improves speed, precision and the degree of accuracy of double-core focusing.
Based on the structure of camera module in Fig. 5, treatment side is imaged to the camera module of the embodiment of the present application with reference to Fig. 6
Method is illustrated.
Specifically, camera module 500 includes the imageing sensor 100 that the embodiment of the present application is provided.
Wherein, as Figure 1-Figure 4, here is omitted for the structure of imageing sensor 100.
Fig. 6 is the flow chart of the camera module image pickup processing method of the application one embodiment.
As shown in fig. 6, the method includes：
Step 601, control photosensitive unit array enters focal modes.
Specifically, camera module 500 can control photosensitive unit array 10 to enter focusing mould by various triggering modes
Formula.Such as, the condition that control photosensitive unit array 10 enters focal modes can be pre-set, when imageing sensor 100 is obtained
Image when meeting the condition, then camera module 500 can control photosensitive unit array 10 automatically into focal modes；Or,
For example shooting mould can also be arranged on according to controlling photosensitive unit array 10 to enter focal modes the need for user in user's touch-control
When organizing the control button on 500, control photosensitive unit array 10 enters focal modes, etc..
Step 602, reads first group output valves of the M to the first focusing photosensitive unit.
Wherein, first group of output valve, including M distinguishes corresponding two photodiodes to the first focusing photosensitive unit 11
Output valve.
Step 603, reads second group output valves of the N to the second focusing photosensitive unit.
Wherein, second group of output valve, including N distinguishes corresponding two photodiodes to the second focusing photosensitive unit 12
Output valve.
For example, by taking Fig. 2 b as an example, Fig. 2 b include that 32 pairs of center lines are vertical with the horizontal direction of imageing sensor 100
The first focusing photosensitive unit 11, and the 32 pairs of center lines and the horizontal direction parallel of imageing sensor 100 the second focusing sense
Light unit 12.The photodiodes of left and right two are respectively in then first group of output valve, including 32 pairs first focusing photosensitive units 11
Output valve；Upper and lower two photodiodes output respectively in second group of output valve, including 32 pairs second focusing photosensitive units 12
Value.
Step 604, according to first group of output valve and second group of output valve, carries out focusing control.
Specifically, have read M to first group of output valve and N of the first focusing photosensitive unit 11 to the second focusing photosensitive unit
After 12 output valve, you can according to following step, focusing control is carried out.That is, step 604, can specifically include：
Step 604a, according to first group of output valve, determines image that imageing sensor currently obtains in a first direction
Phase difference.
Wherein, first direction, is the direction with M to the central axis of the first focusing photosensitive unit 11.
Step 604b, according to second group of output valve, determines image phase difference in a second direction.
Wherein, second direction, is the direction with N to the central axis of the second focusing photosensitive unit 12.
Still by taking Fig. 2 b as an example, it is assumed thatIt is a pair first poles of photoelectricity two on the corresponding left side of focusing photosensitive unit 11
The output valve of pipe,It is a pair first output valves of the photodiode on the corresponding the right of focusing photosensitive unit 11, then
According to M to first focusing photosensitive unit 11 first group of output valve, using following formula, you can determine imageing sensor 100
The current image for obtaining phase difference x in the horizontal direction.
Wherein, the phase difference x in horizontal direction, is light of the M to first focusing corresponding the right and left of photosensitive unit 11
Electric diode, the phase difference when two images difference for obtaining respectively is minimum.
Similar, it is assumed thatIt is defeated for a pair second photodiodes of focusing photosensitive unit 12 corresponding top
Go out value,It is a pair second output valves of the corresponding following photodiode of photosensitive unit 12 of focusing, then according to N pairs
Second group of output valve of the second focusing photosensitive unit 12, using following formula, you can determine that imageing sensor 100 is currently obtained
Image phase difference y in vertical direction.
Step 604c, focusing control is carried out according to the phase difference on the phase difference and second direction on first direction.
Specifically, image phase difference in a first direction and the second party that imageing sensor 100 is currently obtained is determined
After upward phase difference, you can according to phase difference, the direction of distance that camera module 500 should move and movement is determined, so that
Complete focusing.
When implementing, can be according to the phase difference on the phase difference and second direction on first direction, by various sides
Method, carries out focusing control.
Method one
According to the phase difference on first direction, the first displacement in a first direction of imageing sensor 100 is determined；According to
Phase difference in second direction, determines the second displacement amount in a second direction of camera module 500；According to first displacement
And the second displacement amount, control camera module 500 to be focused.
Specifically, according to the phase difference in both direction, the displacement in the two directions of imageing sensor 100 is determined respectively
After amount, you can control camera module 500 moves corresponding distance respectively in the two directions, so as to complete focusing.
Method two
According to phase difference and the phase difference of second direction on first direction, the phase difference of image is determined；According to phase difference,
Determine the anglec of rotation and displacement of camera module 500；According to the anglec of rotation and displacement, it is right that control camera module 500 is carried out
It is burnt.
Specifically, after image phase difference in the two directions is determined, you can by default method, determine image
Phase difference.For example, it is possible to use the quadratic sum of the phase difference in both direction, as the phase difference of image.Then according to image
After phase difference determines the anglec of rotation and displacement of camera module 500, you can after the control rotation corresponding angle of camera module 500,
Mobile respective distances, so as to complete focusing.
It is understood that also include camera lens in camera module 500, then camera module 500 is controlled when being focused, can be with
Imageing sensor 100 in control camera module 500 is moved, it is also possible to control camera lens to move, so as to complete focusing.
The camera module image pickup processing method that the embodiment of the present application is provided, controls photosensitive unit array to enter focusing mould first
Formula, then reads M to first group of output valve and N of the first focusing photosensitive unit to the second focusing second group of photosensitive unit respectively
Output valve, further according to first group of output valve and second group of output valve, carries out focusing control.Set by photosensitive unit array
Multipair focusing photosensitive unit with various arrangement direction, and using the defeated of photosensitive unit of focusing of the different orientations read
Go out value, focused, improve speed, precision and the degree of accuracy of double-core focusing.
Further, the current image for obtaining of imageing sensor phase difference in a first direction is determined through the above way
After the phase difference in second direction, the depth of field of subject can also be determined according to phase difference, and then to the image that is taken
Carry out virtualization treatment.With reference to Fig. 7, the camera module image pickup processing method that the embodiment of the present application is provided is carried out furtherly
It is bright.
Fig. 7 is the flow chart of the camera module image pickup processing method of the application another embodiment.
As shown in fig. 7, the method includes：
Step 701, control photosensitive unit array enters focal modes.
Step 702, reads first group output valves of the M to the first focusing photosensitive unit.
Step 703, reads second group output valves of the N to the second focusing photosensitive unit.
Step 704, according to first group of output valve, determines the current image for obtaining of imageing sensor phase in a first direction
Potential difference.
Step 705, according to second group of output valve, determines image phase difference in a second direction.
Wherein, step 702 and step 703 can be carried out simultaneously, it is also possible to first carry out step 702, and step 703 is performed afterwards,
Or step 703 is first carried out, and step 702 is performed afterwards, it is not restricted herein.
Similar, step 704 and step 705 can be carried out simultaneously, or successively be carried out.
Step 706, according to the phase difference on the phase difference and second direction on first direction, it is determined that current subject
The depth of field.
In the embodiment of the present application, the depth of field refers to the distance between subject and microlens array.
Step 707, according to the depth of field of subject, virtualization treatment is carried out to subject.
Wherein, virtualization is a kind of common shooting technology, when taking pictures, there is focusing in viewfinder, when focusing is to arriving
On subject, shutter is pressed, you can in making the image of acquisition, subject is that clearly, and background and other objects are empty
Change.
Prior art, can be by the focal length large aperture camera lens of digital camera, being divided into inside the space for photographing
Many levels.For example, the object nearest apart from camera lens is one layer, slightly remote physics is one layer, then remote object is another layer, with
This analogizes.Focus to a layer wherein, you can allow the object of this layer to clearly indicate out, and it is adjacent several before and after clear layer
The object of layer, will be slightly hazy because not in focus, and the object of the layer more remote apart from clear layer is fuzzyyer.By these layers
Be superimposed, you can forming subject can clearly show, and other objects with more remote apart from clear sheaf space more mould
The image that the carrying out of paste shows.
Focused technology by existing double-core both full-pixel, the image currently obtained according to imageing sensor is in one direction
Phase difference, you can it is determined that the depth of field of current subject, so as to by focusing to on the layer where subject, obtaining void
Image after change treatment.
However, in practice, the image currently obtained when imageing sensor phase difference in one direction is smaller,
But when other direction phase differences are larger, then using prior art, possibly cannot accurately determine the scape of current subject
It is deep, and by focus to on the layer where subject, causing the virtualization effect of subject bad.
And in the embodiment of the present application, by setting the multipair focusing with various arrangement direction on imageing sensor 100
Photosensitive unit, it may be determined that image phase difference in different directions, so as to when phase difference in a certain direction is smaller, also may be used
More accurately and rapidly to determine the depth of field of current subject, and by focus accurately to on the layer where subject, from
And making the spatial impression and stereovision of the image for obtaining stronger, virtualization effect is more preferable.
Wherein, above-mentioned steps 701- steps 705 implement process and principle, are referred to step in above-described embodiment
The detailed description of 601-604, here is omitted.
The camera module image pickup processing method that the embodiment of the present application is provided, controls photosensitive unit array to enter focusing mould first
Formula, then reads M to first group of output valve and N of the first focusing photosensitive unit to the second focusing second group of photosensitive unit respectively
Output valve, further according to first group of output valve and second group of output valve, it is determined that the depth of field of current subject, so as to subject
Carry out virtualization treatment.By setting the multipair focusing photosensitive unit with various arrangement direction, and profit on photosensitive unit array
With the output valve of the focusing photosensitive unit of the different orientations read, focused, improve speed, the precision of double-core focusing
And the degree of accuracy, the spatial impression and stereovision of the image of imageing sensor acquisition are enhanced, optimize the virtualization effect of image.
Based on above-described embodiment, the application also proposes a kind of camera module camera treatment device.
Specifically, camera module 500 includes the imageing sensor 100 that the embodiment of the present application is provided.
Wherein, as Figure 1-Figure 4, here is omitted for the structure of imageing sensor 100.
Fig. 8 is the structure chart of the camera module camera treatment device of the application one embodiment.
As shown in figure 8, the camera module camera treatment device includes：
First control module 81, for controlling the photosensitive unit array to enter focal modes；
First read module 82, for reading first group output valves of the M to the first focusing photosensitive unit；
Second read module 83, for reading second group output valves of the N to the second focusing photosensitive unit；
Second control module 84, for according to first group of output valve and second group of output valve, carrying out focusing control
System.
Wherein, the camera module camera treatment device that the present embodiment is provided, can be configured in any terminal, for holding
Camera module image pickup processing method in row previous embodiment.
It should be noted that the explanation in previous embodiment to camera module image pickup processing method embodiment is also suitable
In the camera module camera treatment device of the embodiment, here is omitted.
The camera module camera treatment device that the embodiment of the present application is provided, controls photosensitive unit array to enter focusing mould first
Formula, then reads M to first group of output valve and N of the first focusing photosensitive unit to the second focusing second group of photosensitive unit respectively
Output valve, further according to first group of output valve and second group of output valve, carries out focusing control.Set by photosensitive unit array
Multipair focusing photosensitive unit with various arrangement direction, and using the defeated of photosensitive unit of focusing of the different orientations read
Go out value, focused, improve speed, precision and the degree of accuracy of double-core focusing.
Fig. 9 is the structure chart of the camera module camera treatment device of the application another embodiment.
As shown in figure 9, above-mentioned second control module 84, can specifically include：
First determining unit 841, for according to first group of output valve, determining that described image sensor 100 is currently obtained
The image for taking phase difference in a first direction；
Second determining unit 842, for according to second group of output valve, determining described image phase in a second direction
Potential difference；
Control unit 843 is right for being carried out according to the phase difference on the phase difference and second direction on the first direction
Jiao's control.
In a kind of possible way of realization of the application, above-mentioned control unit 841, specifically for：
According to the phase difference on the first direction, first in a first direction of described image sensor 100 is determined
Shifting amount；
According to the phase difference in the second direction, the second displacement in a second direction of the camera module 500 is determined
Amount；
According to first displacement and the second displacement amount, the camera module 500 is controlled to be focused.
In the alternatively possible way of realization of the application, above-mentioned control unit 841 is additionally operable to：
According to the phase difference on the first direction and the phase difference of the second direction, the phase of described image is determined
Difference；
According to the phase difference, the anglec of rotation and displacement of the camera module 500 are determined；
According to the anglec of rotation and displacement, the camera module 500 is controlled to be focused.
It is understood that camera module 500 also includes：Camera lens.
In the alternatively possible way of realization of the application, above-mentioned control unit 841 is additionally operable to：
Control described image sensor 100 and/or camera lens movement, are focused.
In the alternatively possible way of realization of the application, camera module camera treatment device also includes：
Determining module, for according to the phase difference on the phase difference and second direction on the first direction, it is determined that currently
The depth of field of subject；
Processing module, for according to the depth of field, virtualization treatment being carried out to the image that is taken.
It should be noted that the explanation in previous embodiment to camera module image pickup processing method embodiment is also suitable
In the camera module camera treatment device of the embodiment, here is omitted.
The camera module camera treatment device that the embodiment of the present application is provided, controls photosensitive unit array to enter focusing mould first
Formula, then reads M to first group of output valve and N of the first focusing photosensitive unit to the second focusing second group of photosensitive unit respectively
Output valve, further according to first group of output valve and second group of output valve, carries out focusing control.Set by photosensitive unit array
Multipair focusing photosensitive unit with various arrangement direction, and using the defeated of photosensitive unit of focusing of the different orientations read
Go out value, focused, improve speed, precision and the degree of accuracy of double-core focusing, enhance the image of imageing sensor acquisition
Spatial impression and stereovision, optimize the virtualization effect of image.
Further aspect of the present invention embodiment also proposes a kind of terminal device.Figure 10 is the end that the application one embodiment is provided
The structure chart of end equipment.
As shown in Figure 10, the terminal device includes housing 101, circuit board 102, camera module 500 and power circuit 103,
Wherein, the circuit board 102 is placed in the interior volume that the housing 101 is surrounded；The power circuit 103, for for described in
Each circuit or device of terminal device are powered.
Specifically, camera module 500 includes imageing sensor 100, imageing sensor 100 includes：Photosensitive unit array 10,
The filter unit array 20 on the photosensitive unit array 10 is arranged on, and it is micro- on the filter unit array 20
Lens array 30；
Wherein, the photosensitive unit array 10 includes M to the first focusing photosensitive unit 11 and N to the second photosensitive list of focusing
Unit 12, a lenticule unit 31 covers a filter unit and a pair of focusing photosensitive units, wherein, each pair focusing photosensitive unit
Center line and this pair focusing photosensitive unit orientation it is parallel；
A pair first center lines of focusing photosensitive unit 11, with a pair second friendships of the centreline space of focusing photosensitive unit 12
Angle is more than 0 degree, and M and N is the positive integer more than or equal to 1.
In a kind of possible way of realization, above-mentioned terminal device can also include memory 104, processor 105；
The processor 105 and the memory 104 are arranged on the circuit board 102；The memory 104 is used to deposit
Storage executable program code；The processor 405 is transported by reading the executable program code stored in the memory 104
Row program corresponding with the executable program code, for performing following steps：
The photosensitive unit array 10 is controlled to enter focal modes；
Read first group output valves of the M to the first focusing photosensitive unit 11；
Read second group output valves of the N to the second focusing photosensitive unit 12；
According to first group of output valve and second group of output valve, focusing control is carried out.
It should be noted that the foregoing explanation to imageing sensor and camera module image pickup processing method embodiment
Suitable for the terminal device of the embodiment, its realization principle is similar to, and here is omitted.
The embodiment of the present application provide terminal device in, camera module include photosensitive unit array, be arranged on it is described photosensitive
Filter unit array in cell array, and the microlens array on the filter unit array imageing sensor,
By setting the multipair focusing photosensitive unit with various arrangement direction on photosensitive unit array, and using the different rows for reading
The output valve of the focusing photosensitive unit of column direction, is focused, and improves speed, precision and the degree of accuracy of double-core focusing.
It is that, up to above-mentioned purpose, the embodiment of the present application proposes a kind of computer-readable recording medium, is stored thereon with calculating
Machine program, when the program is when executed by realizing the camera module image pickup processing method as in previous embodiment.
It is that, up to above-mentioned purpose, the embodiment of the present application proposes a kind of computer program product, when the computer program is produced
When instruction processing unit in product is performed, perform such as the camera module image pickup processing method in previous embodiment.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use
In the order list of the executable instruction for realizing logic function, in 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 with reference to 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
The dress that defeated program is used for instruction execution system, device or equipment or with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：With the electricity that one or more are connected up
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, computer-readable medium can even is that the paper that can thereon print described program or other are suitable
Medium, because optical scanner for example can be carried out by paper or other media, then enters edlin, interpretation or if necessary with it
His suitable method is processed electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In implementation method, 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 for example, realized with hardware, and in another embodiment, can be with well known in the art
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..
It should be noted that in the description of this specification, reference term " one embodiment ", " some embodiments ", " show
The description of example ", " specific example " or " some examples " etc. mean to combine the specific features of the embodiment or example description, structure,
Material or feature are contained at least one embodiment of the invention or example.In this manual, above-mentioned term is shown
The statement of meaning property is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or spy
Point can in an appropriate manner be combined in any one or more embodiments or example.Additionally, in the case of not conflicting,
Those skilled in the art can be by the different embodiments or example described in this specification and different embodiment or example
Feature is combined and combines.
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 spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.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 with office
Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of imageing sensor, it is characterised in that including：Photosensitive unit array, it is arranged on the photosensitive unit array
Filter unit array, and the microlens array on the filter unit array；
Wherein, the photosensitive unit array includes the M first focusing photosensitive units parallel to each other to center line, and N is to center
Line the second focusing photosensitive unit parallel to each other, a lenticule unit covers a filter unit and a pair of photosensitive lists of focusing
Unit；
A pair first center lines of focusing photosensitive unit, the angle of cut with a pair second centreline spaces of focusing photosensitive unit is more than 0
Degree, M and N is the positive integer more than or equal to 1.
2. imageing sensor as claimed in claim 1, it is characterised in that the M is to the first focusing photosensitive unit and N to second
Focusing photosensitive unit, is separately positioned on the vertical center line and horizontal center line of described image sensor.
3. imageing sensor as claimed in claim 2, it is characterised in that the M is to the first focusing photosensitive unit and N to second
Focusing photosensitive unit, is also separately positioned on two groups of described image sensor on sideline.
4. imageing sensor as claimed in claim 3, it is characterised in that the vertical center line and level of described image sensor
The density of the focusing photosensitive unit on center line, more than two groups of described image sensor to the focusing photosensitive unit on sideline
Density.
5. the imageing sensor as described in claim 1-4 is any, it is characterised in that M=N.
6. the imageing sensor as described in claim 1-4 is any, it is characterised in that each pair first is focused the center of photosensitive unit
The central axis of line and the focusing photosensitive unit of each pair second.
7. imageing sensor as claimed in claim 1, it is characterised in that also include in the photosensitive unit array：L is to center
Line the 3rd focusing photosensitive unit parallel to each other, L is the positive integer more than or equal to 1；
Wherein, a pair the 3rd focusing photosensitive units, respectively by a filter unit and a lenticule unit covering；
A pair the 3rd center lines of focusing photosensitive unit, the center line with the pair of first focusing photosensitive unit, and described one
The angle of cut to the centreline space of the second focusing photosensitive unit is respectively greater than 0 degree.
8. imageing sensor as claimed in claim 7, it is characterised in that the M is to the first focusing photosensitive unit, N to second
Focusing photosensitive unit and L to the 3rd focusing photosensitive unit, be separately positioned on described image sensor horizontal center line, first pair
On linea angulata and the second diagonal.
9. a kind of camera module, it is characterised in that including the imageing sensor as described in claim 1-7 is any.
10. a kind of terminal device, it is characterised in that including housing, circuit board, camera module and power circuit, wherein, the electricity
Road plate is placed in the interior volume that the housing is surrounded；The power circuit, for each circuit for the terminal device or
Device is powered.
The camera module includes imageing sensor, and described image sensor includes：Photosensitive unit array, be arranged on it is described photosensitive
Filter unit array in cell array, and the microlens array on the filter unit array；
Wherein, the photosensitive unit array includes the M first focusing photosensitive units parallel to each other to center line and N to center line
Second focusing photosensitive unit parallel to each other, a lenticule unit covers a filter unit and a pair of focusing photosensitive units,
Wherein, the center line of each pair focusing photosensitive unit is parallel with the orientation of this pair focusing photosensitive unit；
A pair first center lines of focusing photosensitive unit, the angle of cut with a pair second centreline spaces of focusing photosensitive unit is more than 0
Degree, M and N is the positive integer more than or equal to 1.
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