CN109470450A - Double appraisal procedures for taking the photograph lens group parallelism of optical axis, device and computer media - Google Patents
Double appraisal procedures for taking the photograph lens group parallelism of optical axis, device and computer media Download PDFInfo
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Abstract
The invention discloses a kind of double appraisal procedure, device and computer medias for taking the photograph lens group parallelism of optical axis.Wherein, this method comprises: being imaged to obtain fisrt feature point to the first calibration point in calibration image using double the first lens groups taken the photograph in lens group, the second calibration point in calibration image is imaged using the second lens group to obtain the double angles taken the photograph lens group or calibrate image of second feature point adjustment；The second calibration point is imaged using the first lens group to obtain third feature point, and, the first calibration point is imaged using the second lens group to obtain fourth feature point；Reference picture is merged into first imaging and the second imaging；The depth of parallelism between the primary optic axis of the first lens group and the second optical axis of the second lens group is determined according to reference picture.The present invention solves in the related technology can not accurate evaluation is double the technical issues of taking the photograph the parallelism of optical axis of lens group.
Description
Technical field
The present invention relates to optical lens imaging fields, take the photograph commenting for lens group parallelism of optical axis in particular to a kind of pair
Estimate method, apparatus and computer media.
Background technique
In recent years, with the development of science and technology, the portable electronic products such as mobile phone, tablet computer gradually rise, and have
The portable electronic product of camera function, which obtains people, more to be favored, therefore market is taken the photograph to portable electronic product is suitable for
As the demand of camera lens is gradually increased.And with portable electronic product be intended to miniaturization, it is lightening, limit the total of camera lens
It is long, to increase the design difficulty of camera lens.Meanwhile with common photosensitive element CCD (Charge-Coupled Device, sense
Optical coupling element) or CMOS (Complementary Metal-Oxide Semiconductor, Complimentary Metal-Oxide are partly led
Volume elements part) etc. the raising of element functions and the reduction of size, high image quality and miniaturization for the camera lens used that matches
More stringent requirements are proposed.
Currently, by provide two lens groups formed it is double take the photograph mould group and apply can satisfy part on portable electronic product
Above-mentioned requirement, and realize optical zoom, wide-angle auxiliary, depth of field auxiliary, 3D imaging and augmented reality etc. other singly to take the photograph mould group difficult
With the function of realization.But using more high complexity caused by two lens groups, so that manufacture, assessment and application etc.
New problem is likely to occur in link.For example, will lead to image quality when the optical axis of two lens groups is not parallel to each other
The problem of, need the depth of parallelism to each double lens group optical axises for taking the photograph mould group to assess, to ensure the optical axis of two lens groups
Excessive angle, which will not be generated, influences user experience.
For above-mentioned problem, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of double appraisal procedures for taking the photograph lens group parallelism of optical axis, device and computers to be situated between
Matter, at least solve in the related technology can not accurate evaluation is double take the photograph the parallelism of optical axis of lens group the technical issues of.
According to an aspect of an embodiment of the present invention, a kind of double parallelism of optical axis appraisal procedures for taking the photograph lens group are provided,
It include: to be imaged to obtain fisrt feature to the first calibration point in calibration image using double the first lens groups taken the photograph in lens group
Point, and, the second calibration point in the calibration image is imaged using double second lens groups taken the photograph in lens group
Obtain second feature point, wherein the center dot center pair of first calibration point and the second calibration point about the calibration image
Claim；Adjust double angles for taking the photograph lens group or the calibration image；Using first lens group to second calibration point
It is imaged to obtain third feature point, and, first calibration point is imaged using second lens group to obtain
Four characteristic points；Reference picture is merged into first imaging and the second imaging, wherein first imaging includes the fisrt feature
Point and the second feature point, second imaging includes the third feature point and fourth feature point；According to the ginseng
It examines image and determines the depth of parallelism between the primary optic axis of first lens group and the second optical axis of second lens group.
Further, adjusting double lens groups or the angle of the calibration image taken the photograph includes: to take the photograph lens group for described pair
Or the calibration image is adjusted by first angle to second angle；Wherein, the first angle differs 180 with the second angle
Degree.
Further, the combination of the first angle and the second angle includes following one: 90 degree and 270 degree, 180
It spends and 360 degree.
Further, it is determined according to the reference picture parallel between first lens group and second lens group
Degree includes: the first distance obtained described in the reference picture between fisrt feature point and fourth feature point；And it obtains
Take the second distance in the reference picture between second feature point and third feature point；According to the first distance and institute
State the depth of parallelism that second distance determines the primary optic axis Yu second optical axis.
Further, first lens group and second mirror are determined according to the first distance and the second distance
The depth of parallelism between head group includes: to judge whether the difference between the first distance and the second distance is greater than preset difference value
Threshold value；If the difference is less than or equal to the preset difference value threshold value, it is determined that the primary optic axis and second optical axis it
Between the depth of parallelism it is qualified；Otherwise, it determines the depth of parallelism between the primary optic axis and second optical axis is unqualified.
Further, first lens group and second mirror are determined according to the first distance and the second distance
The depth of parallelism between head group includes: to judge whether at least one in the first distance and the second distance is greater than pre-determined distance
Threshold value；If the first distance and the second distance are respectively less than the pre-determined distance threshold value, it is determined that the primary optic axis and
The depth of parallelism of second optical axis is qualified；Otherwise, it determines the depth of parallelism of the primary optic axis and second optical axis is unqualified.
Further, further includes: first calibration point is the central point of the first calibration image in the calibration image；With
And second calibration point is the central point of the second calibration image in the calibration image；Wherein, it is described first calibration image with
The distinguishing characteristics of the second calibration image includes at least one of: color, size, shape.
Further, further includes: described double to take the photograph lens group and the calibration image is orthogonal.
According to another aspect of an embodiment of the present invention, a kind of double parallelism of optical axis assessment dresses for taking the photograph lens group are additionally provided
It sets, comprising: the first imaging unit, for taking the photograph the first lens group in lens group to the first calibration point in calibration image using double
It is imaged to obtain fisrt feature point, and, the second lens group in lens group is taken the photograph in the calibration image using described pair
The second calibration point be imaged to obtain second feature point, wherein first calibration point and the second calibration point are about the school
The central point central symmetry of quasi- image；Adjustment unit, for adjusting double angles for taking the photograph lens group or the calibration image；The
Two imaging units obtain third feature point for second calibration point to be imaged using first lens group, and,
First calibration point is imaged using second lens group to obtain fourth feature point；Combining unit is used for first
Reference picture is merged into imaging and the second imaging, wherein first imaging includes the fisrt feature point and second spy
Point is levied, second imaging includes the third feature point and fourth feature point；Determination unit, for according to the reference
Image determines the depth of parallelism between the primary optic axis of first lens group and the second optical axis of second lens group.
Further, the adjustment unit includes: adjustment module, for taking the photograph lens group or the calibration image for described pair
It is adjusted by first angle to second angle；Wherein, the first angle differs 180 degree with the second angle.
Further, the determination unit includes: the first acquisition module, for obtaining first described in the reference picture
First distance between characteristic point and fourth feature point；And second obtain module, for obtaining in the reference picture
Second distance between second feature point and third feature point；Determining module, for according to the first distance with it is described
Second distance determines the depth of parallelism of the primary optic axis Yu second optical axis.
Further, the determining module includes: the first judging submodule, for judging the first distance and described the
Whether the difference between two distances is greater than preset difference value threshold value；First determines submodule, if being less than or equal to for the difference
The preset difference value threshold value, it is determined that the depth of parallelism between the primary optic axis and second optical axis is qualified；Second determines son
Module determines between the primary optic axis and second optical axis if being greater than the preset difference value threshold value for the difference
The depth of parallelism is unqualified.
Further, the determining module includes: second judgment submodule, for judging the first distance and described the
Whether at least one in two distances is greater than pre-determined distance threshold value；Third determines submodule, if for the first distance with it is described
Second distance is respectively less than the pre-determined distance threshold value, it is determined that the depth of parallelism of the primary optic axis and second optical axis is qualified；
4th determines submodule, if at least one is greater than the pre-determined distance threshold value for the first distance and the second distance,
Determine that the depth of parallelism of the primary optic axis and second optical axis is unqualified.
According to another aspect of an embodiment of the present invention, the program that a kind of storage medium includes storage is additionally provided,
In, double parallelism of optical axis appraisal procedures for taking the photograph lens group as described above are executed when described program is run
According to another aspect of an embodiment of the present invention, a kind of processor is additionally provided for running program, wherein institute
Double parallelism of optical axis appraisal procedures for taking the photograph lens group as described above are executed when stating program operation
In embodiments of the present invention, under a different angle using double the first lens groups and the second mirror taken the photograph in lens group
Head group respectively to the first calibration point and the mode that is imaged of the second calibration point in calibration image, by by the first imaging with
And second imaging merge into reference picture, then determine that the first lens group is parallel with the second lens group optical axis according to reference picture
It spends, has achieved the purpose that assessment is double and taken the photograph lens group parallelism of optical axis, so that realizing double lens group parallelisms of optical axis of taking the photograph assesses standard
The technical effect of true property, so solve in the related technology can not the technologies of the double parallelisms of optical axis for taking the photograph lens group of accurate evaluation ask
Topic.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of process of optional double parallelism of optical axis appraisal procedures for taking the photograph lens group according to an embodiment of the present invention
Schematic diagram；
Fig. 2 is a kind of schematic diagram of optional standard picture according to an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of optional reference picture according to an embodiment of the present invention；
Fig. 4 a is the schematic diagram of another optional standard picture according to an embodiment of the present invention；
Fig. 4 b is the schematic diagram of another optional standard picture according to an embodiment of the present invention；
Fig. 4 c is the schematic diagram of another optional standard picture according to an embodiment of the present invention；
Fig. 5 is a kind of structure of optional double parallelism of optical axis assessment devices for taking the photograph lens group according to an embodiment of the present invention
Schematic diagram.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
Before introducing the embodiment of the present invention, first the application scenarios in the present embodiment are illustrated, in the present embodiment
Double parallelism of optical axis appraisal procedures for taking the photograph lens group are mainly used for double taking the photograph lens group, wherein double lens groups of taking the photograph are by the first camera lens
Two groups of pick-up lens compositions of group and the second lens group, the specifications parameter of the two is identical, the first lens group and the second lens group
Position is fixed.In actual application scenarios, need to set the first lens group primary optic axis and the second optical axis of the second lens group
It is set to the angle that parallel or the two is formed and needs to be less than certain threshold value.And in double assembling process for taking the photograph lens group, it needs
Double parallelisms of optical axis for taking the photograph lens group are calibrated.
According to embodiments of the present invention, a kind of double parallelism of optical axis appraisal procedures for taking the photograph lens group are provided, as shown in Figure 1,
This method comprises:
S102 is imaged to obtain using double the first lens groups taken the photograph in lens group to the first calibration point in calibration image
Fisrt feature point, and, the second calibration point in calibration image is imaged using double the second lens groups taken the photograph in lens group
Obtain second feature point, wherein the central point central symmetry of the first calibration point and the second calibration point about calibration image；
S104, the double angles taken the photograph lens group or calibrate image of adjustment；
S106 is imaged the second calibration point using the first lens group to obtain third feature point, and, utilize the second mirror
Head group is imaged the first calibration point to obtain fourth feature point；
S108, by first imaging with second imaging merge into reference picture, wherein first imaging include fisrt feature point with
Second feature point, the second imaging include third feature point and fourth feature point；
S110 is determined according to reference picture between the primary optic axis of the first lens group and the second optical axis of the second lens group
The depth of parallelism.
It should be noted that calibration image is the image for being calibrated to double parallelisms of optical axis for taking the photograph lens group,
Calibrating includes the first calibration point and the second calibration point in image, and the first calibration point and the second calibration point are about calibration image
Central symmetry.Wherein, the distance between the first calibration point and the second calibration point should with it is double take the photograph in lens group the first lens group with
The distance between second lens group is corresponding so that it is double take the photograph lens group the first calibration point or the second calibration point can be carried out at
Picture.As shown in Fig. 2, being the calibration image 201 being made of the first calibration point A and the second calibration point B, wherein the first standard point
Central point O central symmetry with the second standard point B about calibration image 201.
In a kind of preferably technical solution, the first calibration point is identified with the second calibration point due to being inconvenient to, can be with
It sets the first calibration point to the central point of the first calibration image, sets the second calibration point at the center of the second calibration image
Point.But divide the first calibration image and the second calibration image by the way that different distinguishing characteristics is arranged, for example, shape, color, ruler
Very little or mark etc..
It still needs to it is noted that in the present embodiment, the first lens group is imaged the first calibration point to obtain the first spy
Point is levied, in fact, what the first calibration point was imaged in the first lens group is one group of image, i.e. fisrt feature point is corresponding
Fisrt feature image, however only include fisrt feature point in fisrt feature image, for the convenience of description, therefore in the present embodiment
In, it is fisrt feature point by fisrt feature iamge description.
In the present embodiment, need to adjust double angles taken the photograph lens group or calibrate image, for example, passing through the total group such as turntable
By standard picture or double lines for taking the photograph lens group relative to former first calibration point and the second calibration point, planar rotate, so that
Double the first lens groups taken the photograph in lens group and the second lens group are respectively imaged the first calibration point and the second calibration point,
In the process, it is adjustable it is double take the photograph lens group also adjustable calibration image, specifically can according to actual application scenarios or
Use experience determines.
In the present embodiment, double the first lens groups taken the photograph in lens group and the second lens group respectively to the first calibration point with
And second calibration point be imaged after obtain first imaging with second be imaged merge, obtain reference picture, in the ideal situation
(i.e. the first lens group is parallel with the optical axis of the second lens group), in the case that the angle of adjustment is 180 degree, first in reference picture
The second distance between first distance and second feature point and third feature point between characteristic point and fourth feature point, two
Person is equal and is 0, is coincidence status.
It should be noted that embodiment through the invention, using double the first lens groups taken the photograph in lens group to calibration figure
The first calibration point as in is imaged to obtain fisrt feature point, and, using double the second lens groups taken the photograph in lens group to school
The second calibration point in quasi- image is imaged to obtain second feature point, wherein the first calibration point and the second calibration point are about school
The central point central symmetry of quasi- image；The double angles taken the photograph lens group or calibrate image of adjustment；Using the first lens group to the second school
It is imaged to obtain third feature point on schedule, and, the first calibration point is imaged using the second lens group to obtain the 4th spy
Sign point；Reference picture is merged into first imaging and the second imaging, wherein the first imaging includes fisrt feature point and second feature
Point, the second imaging include third feature point and fourth feature point；According to reference picture determine the primary optic axis of the first lens group with
The depth of parallelism between second optical axis of the second lens group.Achieve the purpose that assessment is double and taken the photograph lens group parallelism of optical axis, thus real
Double technical effects for taking the photograph lens group parallelism of optical axis assessment accuracy are showed.
Optionally, in the present embodiment, the double angles taken the photograph lens group or calibrate image of adjustment include but is not limited to: taking the photograph double
Lens group or calibration image are adjusted by first angle to second angle；Wherein, first angle differs 180 degree with second angle.It needs
It is noted that first angle can be arbitrary value, and the difference between first angle and second angle can be according to actual
Application scenarios are configured.And under a kind of preferred embodiment, first angle and second angle differ 180 degree.More than
It is only a kind of example, any restriction will not be generated to the present embodiment.It should be noted that in the present embodiment, taking the photograph camera lens double
Before standard picture is imaged in group, double companies taken the photograph between the line between lens group or the first standard point and the second standard point
Line is initial link position, and first angle and second angle are determined relative to initial line.
Preferably, in the present embodiment, the combination of first angle and second angle includes following one: first angle 90
Degree and second angle are 270 degree, first angle is 180 degree and second angle is 360 degree.
Optionally, in the present embodiment, it is determined according to reference picture parallel between the first lens group and the second lens group
Degree includes but is not limited to: obtaining the first distance in reference picture between fisrt feature point and fourth feature point；And obtain ginseng
Examine the second distance in image between second feature point and third feature point；The first light is determined according to first distance and second distance
The depth of parallelism of axis and the second optical axis.
It is in double lens groups of taking the photograph in Fig. 3 to the first standard point and second specifically, being illustrated taking what is shown in fig. 3 as an example
What is synthesized after standard point imaging refers to figure, and N1 is fisrt feature point, and N2 is second feature point, and M1 is fourth feature point, M2 the
Three characteristic points.Obtain the first distance d between fisrt feature point N1 and third feature point M21, and obtain second feature point N2
With the second distance d between third feature point M22, according to first distance d1With second distance d2Size and difference determine
The depth of parallelism between primary optic axis and the second optical axis.
Optionally, in the present embodiment, the first lens group and the second lens group are determined according to first distance and second distance
Between the depth of parallelism include but is not limited to: judge whether the difference between first distance and second distance is greater than preset difference value threshold
Value；If difference is less than or equal to preset difference value threshold value, it is determined that the depth of parallelism between primary optic axis and the second optical axis is qualified；It is no
Then, determine that the depth of parallelism between primary optic axis and the second optical axis is unqualified.Specifically, being still illustrated taking what is shown in fig. 3 as an example, sentence
Disconnected first distance d1With second distance d2Difference DELTA d is greater than preset difference value threshold value, if difference DELTA d is less than or equal to preset difference value
Threshold value, it is determined that the depth of parallelism between primary optic axis and the second optical axis is qualified；Otherwise, it determines between primary optic axis and the second optical axis
The depth of parallelism it is unqualified.
It should be noted that in the above-described embodiments, by whether judging the difference between first distance and second distance
Greater than preset difference value threshold value, wherein if first distance and second distance illustrate the first lens group and the second lens group close to 0
Primary optic axis and the second optical axis with double to take the photograph the primary optical axis of lens group be parallel.In actual application scenarios, adjustment is double to be taken the photograph
The depth of parallelism between the primary optic axis of lens group and the second optical axis, then adjust primary optic axis and the second optical axis and take the photograph camera lens relative to double
The depth of parallelism of the primary optical axis of group.
Optionally, in the present embodiment, the first lens group and the second lens group are determined according to first distance and second distance
Between the depth of parallelism include but is not limited to: judge whether at least one in first distance and second distance is greater than pre-determined distance threshold
Value；If first distance and second distance are respectively less than pre-determined distance threshold value, it is determined that the depth of parallelism of primary optic axis and the second optical axis is closed
Lattice；Otherwise, it determines the depth of parallelism of primary optic axis and the second optical axis is unqualified.Specifically, be still illustrated taking what is shown in fig. 3 as an example,
Judge first distance d1With second distance d2In whether be greater than pre-determined distance threshold value, if first distance d1With second distance d2It is small
In pre-determined distance manner, it is determined that, the depth of parallelism of primary optic axis and the second optical axis is qualified.Otherwise, it determines primary optic axis and second
The depth of parallelism of optical axis is unqualified.
It should be noted that in the above-described embodiments, by whether judging at least one in first distance and second distance
It is to be according to the optical axis of relative difference two groups of camera lenses of judgement between reference picture acceptance of the bid imaging on schedule greater than pre-determined distance threshold value
It is no there are the difference of pitch angle, determine whether the first lens group and the respective optical axis of the second lens group parallel.
Optionally, in the present embodiment, further includes: the first calibration point is the center for calibrating the first calibration image in image
Point；And second calibration point be calibrate image in second calibration image central point；Wherein, the first calibration image and the second school
The distinguishing characteristics of quasi- image includes at least one of: color, size, shape.Specifically, in actual application scenarios, only
Carrying out identification to the position between the first standard point and the second standard point according to naked eyes is relatively difficult, differentiation for convenience,
The first calibration image of setting and the second calibration image on calibration image, the first calibration point are the central point of the first calibration image,
Second calibration point is the central point of the second calibration image.In order to facilitate differentiation, can scheme for the first calibration image and the second calibration
As different distinguishing characteristics is arranged.Such as shown in Fig. 4 a, the first standard picture S is different from the color of the second standard picture T；Figure
The first standard picture S and the second standard picture T's is of different sizes in 4b；First standard picture S and the second standard picture T in Fig. 4 c
Color it is different, in the figures above, A is the first standard point, and B is the second standard point.Further, it is also possible to be the marks such as addition text
Know to distinguish the first standard picture and the second standard picture.It should be noted the first standard picture and the second standard picture
Image size Ying Yushuan take the photograph the lens group size of lens group and match, such as the image of 3*3 or 5*5 pixel size.
Optionally, in the present embodiment, further includes: it is double take the photograph lens group and calibration image it is orthogonal.Specifically, double take the photograph mirror
Calibration image is vertically imaged in head group, wherein double primary optical axis for taking the photograph lens group are vertical with standard picture.
Through the embodiment of the present invention, under a different angle using double the first lens groups and the second mirror taken the photograph in lens group
Head group respectively to the first calibration point and the mode that is imaged of the second calibration point in calibration image, by by the first imaging with
And second imaging merge into reference picture, then determine that the first lens group is parallel with the second lens group optical axis according to reference picture
It spends, has achieved the purpose that assessment is double and taken the photograph lens group parallelism of optical axis, so that realizing double lens group parallelisms of optical axis of taking the photograph assesses standard
The technical effect of true property, so solve in the related technology can not the technologies of the double parallelisms of optical axis for taking the photograph lens group of accurate evaluation ask
Topic.
It should be noted that for the various method embodiments described above, for simple description, therefore, it is stated as a series of
Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the sequence of acts described because
According to the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know
It knows, the embodiments described in the specification are all preferred embodiments, and related actions and modules is not necessarily of the invention
It is necessary.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but it is very much
In the case of the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to existing
The part that technology contributes can be embodied in the form of software products, which is stored in a storage
In medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, calculate
Machine, server or network equipment etc.) execute method described in each embodiment of the present invention.
Embodiment 2
According to embodiments of the present invention, it additionally provides a kind of for implementing above-mentioned double parallelism of optical axis assessment sides for taking the photograph lens group
Double parallelism of optical axis assessment devices for taking the photograph lens group of method, as shown in figure 5, the device includes:
1) the first imaging unit 501, for taking the photograph the first lens group in lens group to first in calibration image using double
Calibration point is imaged to obtain fisrt feature point, and, using double second lens groups taken the photograph in lens group to the calibration
The second calibration point in image is imaged to obtain second feature point, wherein first calibration point and the second calibration point about
The central point central symmetry of the calibration image；
2) adjustment unit 502, for adjusting double angles for taking the photograph lens group or the calibration image；
3) the second imaging unit 503, for being imaged to obtain to second calibration point using first lens group
Third feature point, and, first calibration point is imaged using second lens group to obtain fourth feature point；
4) combining unit 504, for reference picture to be merged into the first imaging and the second imaging, wherein the first one-tenth described
As including the fisrt feature point and the second feature point, second imaging includes the third feature point and the described 4th
Characteristic point；
5) determination unit 505, for determined according to the reference picture primary optic axis of first lens group with it is described
The depth of parallelism between second optical axis of the second lens group.
Optionally, in the present embodiment, the adjustment unit 502 includes:
1) module is adjusted, is adjusted by first angle to second jiao for taking the photograph lens group or the calibration image for described pair
Degree；Wherein, the first angle differs 180 degree with the second angle.
Optionally, in the present embodiment, the determination unit 505 includes:
1) first obtain module, for obtain the point of fisrt feature described in the reference picture and the fourth feature point it
Between first distance；And
2) second module is obtained, for obtaining in the reference picture between second feature point and third feature point
Second distance；
3) determining module, for determining the primary optic axis and described the according to the first distance and the second distance
The depth of parallelism of two optical axises.
Optionally, in the present embodiment, the determining module includes:
1) whether the first judging submodule, the difference for judging between the first distance and the second distance are greater than
Preset difference value threshold value；
2) first submodule is determined, if being less than or equal to the preset difference value threshold value for the difference, it is determined that described
The depth of parallelism between primary optic axis and second optical axis is qualified；
3) it second determines submodule, if being greater than the preset difference value threshold value for the difference, determines the primary optic axis
The depth of parallelism between second optical axis is unqualified.
Optionally, in the present embodiment, the determining module includes:
1) second judgment submodule, for judging whether the first distance is greater than at least one in the second distance
Pre-determined distance threshold value；
2) third determines submodule, if being respectively less than the pre-determined distance threshold for the first distance and the second distance
Value, it is determined that the depth of parallelism of the primary optic axis and second optical axis is qualified；
3) the 4th submodule is determined, if at least one is greater than described preset for the first distance and the second distance
Distance threshold determines that the depth of parallelism of the primary optic axis and second optical axis is unqualified.
Optionally, the specific example in the present embodiment can be with reference to example described in above-described embodiment 1, the present embodiment
Details are not described herein.
Embodiment 3
The embodiments of the present invention also provide a kind of storage mediums.Optionally, in the present embodiment, the storage medium packet
Include the program of storage, wherein double parallelism of optical axis appraisal procedures for taking the photograph lens group as described above are executed when described program is run.
Optionally, in the present embodiment, storage medium is arranged to store the program code for executing following steps:
S1 is imaged to obtain the to the first calibration point in calibration image using double the first lens groups taken the photograph in lens group
One characteristic point, and, the second lens group in lens group is taken the photograph using described pair, and the second calibration in the calibration image is clicked through
Row imaging obtains second feature point, wherein the central point of first calibration point and the second calibration point about the calibration image
Central symmetry；；
S2 adjusts double angles for taking the photograph lens group or the calibration image；
S3 is imaged second calibration point using first lens group to obtain third feature point, and, it utilizes
Second lens group is imaged first calibration point to obtain fourth feature point；
First imaging and the second imaging are merged into reference picture by S4, wherein first imaging includes described first special
Sign point and the second feature point, second imaging includes the third feature point and fourth feature point；
S5 determines the primary optic axis and the second of second lens group of first lens group according to the reference picture
The depth of parallelism between optical axis.
Optionally, the specific example in the present embodiment can be with reference to example described in above-described embodiment 1, the present embodiment
Details are not described herein.
Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to: USB flash disk, read-only memory (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or
The various media that can store program code such as CD.
Embodiment 4
The embodiments of the present invention also provide a kind of processors.Optionally, in the present embodiment, the upper processor is used for
Run program, wherein double parallelism of optical axis appraisal procedures for taking the photograph lens group as described above are executed when described program is run.
Optionally, in the present embodiment, processor is arranged to be used for executing the program code of following steps:
S1 is imaged to obtain the to the first calibration point in calibration image using double the first lens groups taken the photograph in lens group
One characteristic point, and, the second lens group in lens group is taken the photograph using described pair, and the second calibration in the calibration image is clicked through
Row imaging obtains second feature point, wherein the central point of first calibration point and the second calibration point about the calibration image
Central symmetry；；
S2 adjusts double angles for taking the photograph lens group or the calibration image；
S3 is imaged second calibration point using first lens group to obtain third feature point, and, it utilizes
Second lens group is imaged first calibration point to obtain fourth feature point；
First imaging and the second imaging are merged into reference picture by S4, wherein first imaging includes described first special
Sign point and the second feature point, second imaging includes the third feature point and fourth feature point；
S5 determines the primary optic axis and the second of second lens group of first lens group according to the reference picture
The depth of parallelism between optical axis.
Optionally, storage medium is also configured to store for executing step included in the method in above-described embodiment 1
Rapid program code repeats no more this in the present embodiment.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
If the integrated unit in above-described embodiment is realized in the form of SFU software functional unit and as independent product
When selling or using, it can store in above-mentioned computer-readable storage medium.Based on this understanding, skill of the invention
Substantially all or part of the part that contributes to existing technology or the technical solution can be with soft in other words for art scheme
The form of part product embodies, which is stored in a storage medium, including some instructions are used so that one
Platform or multiple stage computers equipment (can be personal computer, server or network equipment etc.) execute each embodiment institute of the present invention
State all or part of the steps of method.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed client, it can be by others side
Formula is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, and only one
Kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
It is desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or discussed it is mutual it
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (15)
1. a kind of double parallelism of optical axis appraisal procedures for taking the photograph lens group characterized by comprising
The first calibration point in calibration image is imaged to obtain fisrt feature using double the first lens groups taken the photograph in lens group
Point, and, the second calibration point in the calibration image is imaged using double second lens groups taken the photograph in lens group
Obtain second feature point, wherein the center dot center pair of first calibration point and the second calibration point about the calibration image
Claim；
Adjust double angles for taking the photograph lens group or the calibration image；
Second calibration point is imaged using first lens group to obtain third feature point, and, utilize described
Two lens groups are imaged first calibration point to obtain fourth feature point；
By first imaging with second imaging merge into reference picture, wherein it is described first imaging include the fisrt feature point with
The second feature point, second imaging includes the third feature point and fourth feature point；
According to the reference picture determine first lens group primary optic axis and second lens group the second optical axis it
Between the depth of parallelism.
2. the method according to claim 1, wherein adjustment double angles for taking the photograph lens group or the calibration image
Degree includes:
Lens group or the calibration image is taken the photograph by described pair to be adjusted by first angle to second angle；
Wherein, the first angle differs 180 degree with the second angle.
3. according to the method described in claim 2, it is characterized in that, the combination of the first angle and the second angle includes
Following one:
90 degree and 270 degree, 180 degree and 360 degree.
4. the method according to claim 1, wherein according to the reference picture determine first lens group with
The depth of parallelism between second lens group includes:
Obtain the first distance between the point of fisrt feature described in the reference picture and fourth feature point；And
Obtain the second distance in the reference picture between second feature point and third feature point；
The depth of parallelism of the primary optic axis Yu second optical axis is determined according to the first distance and the second distance.
5. according to the method described in claim 4, it is characterized in that, determining institute according to the first distance and the second distance
The depth of parallelism stated between the first lens group and second lens group includes:
Judge whether the difference between the first distance and the second distance is greater than preset difference value threshold value；
If the difference is less than or equal to the preset difference value threshold value, it is determined that between the primary optic axis and second optical axis
The depth of parallelism it is qualified；
Otherwise, it determines the depth of parallelism between the primary optic axis and second optical axis is unqualified.
6. according to the method described in claim 4, it is characterized in that, determining institute according to the first distance and the second distance
The depth of parallelism stated between the first lens group and second lens group includes:
Judge whether at least one in the first distance and the second distance is greater than pre-determined distance threshold value；
If the first distance and the second distance are respectively less than the pre-determined distance threshold value, it is determined that the primary optic axis and institute
The depth of parallelism for stating the second optical axis is qualified；
Otherwise, it determines the depth of parallelism of the primary optic axis and second optical axis is unqualified.
7. the method according to claim 1, wherein further include:
First calibration point is the central point of the first calibration image in the calibration image；And
Second calibration point is the central point of the second calibration image in the calibration image；
Wherein, the distinguishing characteristics of the first calibration image and the second calibration image includes at least one of:
Color, size, shape.
8. the method according to claim 1, wherein further include: described pair is taken the photograph lens group and the calibration image
It is orthogonal.
9. a kind of double parallelism of optical axis assessment devices for taking the photograph lens group characterized by comprising
First imaging unit, for taking the photograph the first lens group in lens group to the first calibration point progress in calibration image using double
Imaging obtains fisrt feature point, and, using described double the second lens group in lens group is taken the photograph to the in the calibration image
Two calibration points are imaged to obtain second feature point, wherein first calibration point and the second calibration point are schemed about the calibration
The central point central symmetry of picture；
Adjustment unit, for adjusting double angles for taking the photograph lens group or the calibration image；
Second imaging unit, for being imaged to obtain third feature to second calibration point using first lens group
Point, and, first calibration point is imaged using second lens group to obtain fourth feature point；
Combining unit, for reference picture to be merged into the first imaging and the second imaging, wherein first imaging includes described
Fisrt feature point and the second feature point, second imaging includes the third feature point and fourth feature point；
Determination unit, for determined according to the reference picture first lens group primary optic axis and second lens group
The second optical axis between the depth of parallelism.
10. device according to claim 9, which is characterized in that the adjustment unit includes:
Module is adjusted, is adjusted by first angle to second angle for taking the photograph lens group or the calibration image for described pair；
Wherein, the first angle differs 180 degree with the second angle.
11. device according to claim 9, which is characterized in that the determination unit includes:
First obtains module, for obtaining the between the point of fisrt feature described in the reference picture and fourth feature point
One distance；And
Second obtains module, for obtain in the reference picture between second feature point and third feature point second away from
From；
Determining module, for determining the primary optic axis and second optical axis according to the first distance and the second distance
The depth of parallelism.
12. device according to claim 11, which is characterized in that the determining module includes:
Whether the first judging submodule, the difference for judging between the first distance and the second distance are greater than default poor
It is worth threshold value；
First determines submodule, if being less than or equal to the preset difference value threshold value for the difference, it is determined that first light
The depth of parallelism between axis and second optical axis is qualified；
Second determines submodule, if being greater than the preset difference value threshold value for the difference, determines the primary optic axis and described
The depth of parallelism between second optical axis is unqualified.
13. device according to claim 11, which is characterized in that the determining module includes:
Second judgment submodule, for judge at least one in the first distance and the second distance whether be greater than it is default away from
From threshold value；
Third determines submodule, if being respectively less than the pre-determined distance threshold value for the first distance and the second distance,
Determine that the depth of parallelism of the primary optic axis and second optical axis is qualified；
4th determines submodule, if at least one is greater than the pre-determined distance threshold for the first distance and the second distance
Value, determines that the depth of parallelism of the primary optic axis and second optical axis is unqualified.
14. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein when described program is run
Execute double parallelism of optical axis appraisal procedures for taking the photograph lens group described in any one of claim 1 to 8.
15. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 8 described in double parallelism of optical axis appraisal procedures for taking the photograph lens group.
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