CN105976363A - Optical center detection method, correction method and related device - Google Patents
Optical center detection method, correction method and related device Download PDFInfo
- Publication number
- CN105976363A CN105976363A CN201610278248.3A CN201610278248A CN105976363A CN 105976363 A CN105976363 A CN 105976363A CN 201610278248 A CN201610278248 A CN 201610278248A CN 105976363 A CN105976363 A CN 105976363A
- Authority
- CN
- China
- Prior art keywords
- optical center
- point
- coordinate
- picture
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Studio Devices (AREA)
Abstract
The present invention provides an optical center detection method, an optical center correction method and a related device. The optical center detection method includes the following steps that: a picture containing a circular image is obtained; a point is randomly selected from the picture as an origin point, so that a coordinate system can be established; at least three points on the circumference of the circular image are selected, and the coordinates of the at least three points are obtained; and the coordinates of the center of the circle can be obtained through calculation according to the standard equation of the circle and the coordinates of the at least three points, wherein the coordinates of the center of the circle are the optical center of an ultra-wide-angle camera module set. Since the edge of the circular image obtained by the ultra-wide-angle camera module set is clear, the at least three points can be selected accurately, and then the coordinates of the center of the circle can be calculated according to the standard equation of the circle. According to the optical center detection method provided by the invention, calculation is carried out based on geometric principles. Compared with a traditional optical detection method according to which software is utilized to calculate the brightest point of an image in a picture, and the brightest point is adopted as an optical center, the optical center detection method of the invention is more accurate.
Description
Technical field
The present invention relates to a kind of camera technique field, particularly relate to a kind of optical center detection method, correction
Method and relevant apparatus.
Background technology
In order to obtain the bigger angle of visual field, ultra wide-angle imaging module arises at the historic moment, ultra wide-angle imaging module bag
Including camera lens and optical pickocff, its angle of visual field is more than 180 °.Owing to the camera lens of ultra wide-angle imaging module projects
Region to optical pickocff is less than the photosensitive region of optical pickocff, therefore, ultra wide-angle imaging module shape
The exterior contour that edge is camera lens of the figure become, i.e. circular.
The continuous lifting required image quality along with user, obtaining better image effect becomes user's
New requirement, therefore, the center of optical pickocff and optical center (the i.e. camera lens of ultra wide-angle imaging module
The intersection point of optical center axle and optical pickocff) to overlap as far as possible, thus reduce due to Liang Ge center not
Overlap the image aberration and the phenomenon of brightness irregularities caused.
Therefore, it is thus achieved that the optical center of ultra wide-angle imaging module accurately, it is the image obtaining better quality
Key.The optical center detection method of tradition ultra wide-angle imaging module is: shoot one under uniform source of light
Pictures, utilizes computed in software to obtain the bright spot of picture epigraph as optical center.But traditional optical
The accuracy of Spot detection method is relatively low, it is impossible to obtain high-quality image.
Summary of the invention
In view of this, the present invention provides a kind of optical center detection method and device thereof, a kind of optical center
Bearing calibration and device thereof, and a kind of image capture device, to solve optical center inspection in prior art
The accuracy of survey method is relatively low, it is impossible to the problem obtaining better quality image.
For achieving the above object, the present invention provides following technical scheme:
A kind of optical center detection method, based on ultra wide-angle imaging module, described ultra wide-angle imaging module bag
Including camera lens and optical pickocff, described optical center detection method comprises the following steps:
Obtain and take in the picture that the light of described camera lens is formed on described optical pickocff, described picture bag
Containing circular image；
Choose any point on described picture as initial point, set up coordinate system；
Choose at least three point on described circular image circumference, obtain the coordinate of described at least three point；
Normal equation and the coordinate of described at least three point according to circle calculate central coordinate of circle, the described center of circle
Coordinate is optical center.
Preferably, described picture is rectangle, described in choose any point on described picture as initial point,
Set up coordinate system particularly as follows: choose any summit of described picture as initial point, set up coordinate system.
Preferably, described in choose at least three point on described circular image circumference, obtain described at least three
The coordinate of point, particularly as follows: any three points of choosing on described circular image circumference, obtains described three points
Coordinate.
Preferably, described in choose any point on described picture as initial point, set up coordinate system particularly as follows:
Choose any point on described circular image circumference and, as initial point, set up coordinate system.
Preferably, described in choose at least three point on described circular image circumference, obtain described at least three
The coordinate of point, particularly as follows: choose on described circular image circumference any three points in addition to initial point, obtains
The coordinate of described three points.
Preferably, described in choose any point on described picture as initial point, set up coordinate system particularly as follows:
Choose on described picture any point in the region between described circular image circumference and described picture profile
As initial point, set up coordinate system.
Preferably, in the picture that the described light obtaining the described ultra wide-angle imaging module of absorption is formed, described
Light is the light of white light source.
A kind of optical center detection device, based on ultra wide-angle imaging module, described optical center detection device
Including:
Image capture module, takes in, for obtaining, the picture that the light of described ultra wide-angle imaging module is formed,
Described picture comprises circular image；
Establishment of coordinate system module, sets up coordinate system for any point chosen on described picture as initial point；
Coordinate chooses module, for obtaining the coordinate of at least three point on described circular image circumference；
Computing module, described computing module is according to round normal equation and the coordinate meter of described at least three point
Calculate central coordinate of circle.
A kind of optical center bearing calibration, based on ultra wide-angle imaging module, described camera module includes camera lens
And optical pickocff, described optical center bearing calibration includes:
Above-mentioned optical center detection method is used to determine the optical center of described ultra wide-angle imaging module；
The optical center of described ultra wide-angle imaging module is substituted the center of described optical pickocff, as figure
As gathering center.
A kind of optical center correcting unit, including:
Above-mentioned optical center detection device；
Image acquisition center positioning device, for substituting institute by the optical center of described ultra wide-angle imaging module
State the center of optical pickocff, as image acquisition center.
Preferably, described image acquisition center positioning device is from dynamic(al) correction optical center equipment.
A kind of image capture device, including: ultra wide-angle imaging module and above-mentioned optical center correction dress
Put；
Wherein, described camera module includes camera lens and optical pickocff, is used for gathering image；
Described optical center correcting unit is for correcting the optical center of described camera module.
Understanding via above-mentioned technical scheme, the present invention provides a kind of optical center detection method, first obtains
Take ultra wide-angle imaging module and shoot the picture including circular image obtained, described picture arbitrarily selects
Take a little as initial point, set up coordinate system, then choose at least three point on circular image circumference, obtain to
The coordinate of few three points, is calculated central coordinate of circle according to the normal equation of circle and the coordinate of at least three point,
This central coordinate of circle is the optical center of ultra wide-angle imaging module.The circle obtained due to ultra wide-angle imaging module
The edge clear of shape image, it is possible to accurately choose at least three point, the normal equation further according to circle can be counted
Calculation obtains central coordinate of circle.What the optical detecting method that the present invention provides utilized is that geometrical principle calculates,
Relative to the traditional optical detection method as optical center of the bright spot utilizing computed in software picture epigraph
In more accurate.Test through inventor, the optics that the optical center detection method that the present invention provides obtains
The tolerance of center is within 5 μm.
Present invention also offers the device that optical center detection method is corresponding, and examine based on this optical center
The optical center bearing calibration of survey method and the device of correspondence thereof, and also provide a kind of image acquisition and set
Standby, the device corresponding including above-mentioned optical center bearing calibration and ultra wide-angle imaging module, in optics
The device that heart bearing calibration is corresponding, is corrected optical center, so that ultra wide-angle imaging module energy
Enough obtain the higher image of quality.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, not
On the premise of paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
A kind of optical center detection method flow chart that Fig. 1 provides for the embodiment of the present invention one；
A kind of establishment of coordinate system mode that Fig. 2 provides for the embodiment of the present invention one；
The one preferably establishment of coordinate system mode that Fig. 3 provides for the embodiment of the present invention one；
The one more preferably establishment of coordinate system mode that Fig. 4 provides for the embodiment of the present invention one；
The structural representation of a kind of optical center detection device that Fig. 5 provides for the embodiment of the present invention two；
A kind of optical center bearing calibration flow chart that Fig. 6 provides for the embodiment of the present invention three；
The structural representation of a kind of optical center correcting unit that Fig. 7 provides for the embodiment of the present invention four；
The structural representation of a kind of image capture device that Fig. 8 provides for the embodiment of the present invention five.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Inventor, during invention, finds that traditional optical detection method can only be carried out under uniform source of light,
Due to it is difficult to ensure that light source 100% uniform, so the accuracy of traditional optical Spot detection method cannot be protected
Card.
Embodiment one
In order to solve the most relatively low problem of optical center detection method in prior art, the present invention implements
Example provides the optical center detection method that a kind of accuracy is higher, based on ultra wide-angle imaging module, described super
Wide-angle imaging module includes camera lens and optical pickocff.Due to ultra-wide angle (angle of visual field is more than 180 °) shooting
The angle of visual field of module is relatively big, there is its particularity, the image i.e. formed at the photosensitive region of optical pickocff
Less than the photosensitive region of optical pickocff, for the circle of standard, the embodiment of the present invention utilizes geometrical principle
The normal equation of circle is calculated the center of circular image, namely has obtained optical center.The present invention is real
Execute the optical center detection method that example provides, as it is shown in figure 1, comprise the following steps:
Step S101: obtain and take in the picture that the light of described camera lens is formed on described optical pickocff,
Described picture comprises circular image.
The picture of the circular image that the embodiment of the present invention obtains based on the shooting of ultra wide-angle imaging module, the most again
The optical center of ultra wide-angle imaging module it is calculated by geometrical principle.It should be noted that this enforcement
Example does not limit and takes in the just uniform light of described ultra wide-angle imaging module or common light source, only
Want to take in the camera lens of described ultra wide-angle imaging module, and at the optics of described ultra wide-angle imaging module
Circular image is formed in the photosensitive area of sensor.Therefore, the present embodiment can preferably employ and hold most
The light of the white light source easily obtained is taken in ultra wide-angle imaging module, in order to reduce the cost of equipment.
Step S102: as in figure 2 it is shown, any point chosen on described picture P1 is as initial point o, build
Vertical coordinate system.
After obtaining the picture including circular image, start to calculate the home position of circular image, this circle
Heart position is the optical center of ultra wide-angle imaging module.It should be noted that the embodiment of the present invention is built
Vertical coordinate system, is the reference frame that subsequent calculations sets for convenience, therefore, it can choose on described picture
Any point as initial point, then set up coordinate system with this initial point.In the present embodiment to described coordinate system not
Limiting, as long as being capable of being calculated the position in the center of circle, preferably setting up in the present embodiment
Plane right-angle coordinate, coordinate system xoy as shown in Figure 2, to facilitate subsequent calculations.Described initial point is permissible
It is preferably chosen any point on the circumference of circular image, as it is shown on figure 3, again as initial point, set up
Coordinate system；Or when described picture is rectangle, select any summit of described rectangle picture as initial point,
Set up plane right-angle coordinate, preferably can be straight as plane using two right-angle sides at place, selected summit
Two coordinate axess of angle coordinate system, as shown in Figure 4.It addition, choosing of initial point described in the present embodiment is gone back
Can choose at the exterior domain being positioned at circular image circumference, i.e. circular image circumference and figure on picture
Any point is chosen as initial point in region between sheet profile.
Step S103: choose at least three point on described circular image circumference, obtain described at least three point
Coordinate.
In the normal equation of circle, there are three unknown numbers, the coordinate in the center of circle (a, b) and radius r, therefore,
The circumference of circular image is chosen three points, circle can be calculated according to the coordinate figure of described three points
Heart coordinate.Preferably, so that the central coordinate of circle arrived is more accurate, it is also possible to select more than three
Point, is calculated central coordinate of circle according to the coordinate of multiple points.Furthermore it is also possible to be one group with three points,
Choose and organize a little more, be calculated the central coordinate of circle of multiple correspondence according to organizing coordinate a little more, then ask for multiple
The meansigma methods of central coordinate of circle, in order to make described central coordinate of circle more accurate.
If during it should be noted that the initial point chosen in step S102 is a point on circular image circumference,
During situation the most as shown in Figure 3, three points on the circumference chosen in step 103 can not be with step S102
In the initial point chosen overlap, can only other points on the excircle of initial point chosen of selecting step S102, should
Being limited to art is common knowledge, is not described in detail this in the present embodiment.
Step S104: calculate central coordinate of circle according to the normal equation of circle and the coordinate of described at least three point,
Described central coordinate of circle is optical center.
In the present embodiment, preferably coordinate system is plane right-angle coordinate, now utilizes round normal equation
(x-a)2+(y-b)2=r2And the coordinate of above-mentioned three points chosen calculates central coordinate of circle, the center of circle now
Coordinate is the optical center of ultra wide-angle imaging module.
When described coordinate system is other coordinate systems, the Equation for Calculating of other circles of corresponding selection, this meter
Calculating principle is common geometrical principle, and described technical field technical staff can retouch according to embodiments of the present invention
State other computational methods of acquisition, this is not described in detail by the present embodiment.
The optical center detection method that the embodiment of the present invention provides, make use of ultra wide-angle imaging module to be formed
Figure is circular feature, and utilizes geometrical principle to calculate, it is possible to obtain ultra wide-angle imaging module accurately
Optical center, its accuracy is relative to brightness on traditional image utilizing computed in software to obtain maximum
Point is higher as the optical center detection method of optical center.
The optical center detection method that the embodiment of the present invention provides, to the light taking in ultra wide-angle imaging module
Require relatively low, common light source, therefore, it can save the expense of the equipment obtaining uniform source of light.
Further, since the optical center detection method that the embodiment of the present invention provides is just with the circular pattern formed
Circumference on point, the brightness not requirement to circular pattern, accordingly, with respect in traditional optical
For heart detection method can only detect the optical center of brightness irregularities figure, the embodiment of the present invention provides
Optical center detection method is not limited by figure brightness, it is also possible to detection forms uniform luminance circular pattern
The optical center of camera module.
Embodiment two
The present embodiment provides a kind of optical center based on ultra wide-angle imaging module detection device, such as Fig. 5 institute
Show, including:
Image capture module 21, takes in, for obtaining, the picture that the light of described ultra wide-angle imaging module is formed,
Described picture comprises circular image.
The picture collection comprising circular image that ultra wide-angle imaging module can be formed by image capture module 21
In optical center detection device, for follow-up calculating.
Establishment of coordinate system module 22, sets up coordinate for any point chosen on described picture as initial point
System.
Establishment of coordinate system module 22 has the function of selected point, also has the function setting up coordinate system simultaneously,
For selecting any point on picture, set up coordinate system with this point for initial point.In the present embodiment, coordinate
System sets up the selected point of module 22 in the range of whole picture, is not limited by circular image position on picture
Fixed.Establishment of coordinate system module 22 can set up different coordinate systems, but for convenience of calculating, it is preferable that sit
Mark system sets up module 22 and first selects to set up plane right-angle coordinate.
Delivery block 23 is clicked, for obtaining the coordinate of at least three point on described circular image circumference on circumference.
Delivery block 23 is clicked in the present embodiment on circumference, for choosing the point on circular image circumference, and
The coordinate of the point on circumference that acquisition is chosen, circumference clicks delivery block 23 can be by judging certain some week
Enclose the brightness flop in subrange to determine whether this point is positioned on the circumference of circular image.Due to super wide
The figure that angle camera module is formed is that intermediate luminance is maximum, and surrounding brightness is gradually decayed dimmed concentric circular,
Relatively big with the difference in brightness in the place not having image in circular image edge, therefore, described circular image
Border be apparent from, circumference clicks delivery block 23 and can accurately choose the point on circumference.
Computing module 24, described computing module is according to round normal equation and the coordinate of described at least three point
Calculate central coordinate of circle.
Computing module 24 receives the signal clicking delivery block 23 on establishment of coordinate system module 22 and circumference, according to
The coordinate clicking at least three point that delivery block 23 is chosen on the normal equation of circle and circumference calculates center of circle seat
Mark, this central coordinate of circle is the optical center of ultra wide-angle imaging module, thus accurately determines optical center
Position.
The optical center detection device that the present embodiment provides can accurately calculate the position of optical center, from
And provide higher accuracy to follow-up other work according to optical center.
Embodiment three
The present embodiment provides a kind of optical center bearing calibration, based on ultra wide-angle imaging module, described shooting
Module includes camera lens and optical pickocff, described optical center bearing calibration, as shown in Figure 6, and including:
Step S601: use the optical center detection method in embodiment one to determine described ultra wide-angle imaging mould
The optical center of group.
Step S602: the optical center of described ultra wide-angle imaging module is substituted in described optical pickocff
The heart, as image acquisition center.
The optical center of ultra wide-angle imaging module is substituted the center of described optical pickocff by the present embodiment,
As image acquisition center so that the optical center of ultra wide-angle imaging module becomes the center of entire image,
Correct optical center, reduce the side-play amount of optical center to the most almost nil, and then improve ultra-wide angle and take the photograph
Pickup quality as module.
Embodiment four
The present embodiment provides a kind of optical center correcting unit, as it is shown in fig. 7, comprises: in embodiment two
Optical center detection device 2；And image acquisition center positioning device 3, wherein, image acquisition center
Positioner 3 is for substituting the optical center of described ultra wide-angle imaging module in described optical pickocff
The heart, as image acquisition center.
In the present embodiment preferably, described image acquisition center positioning device is for set from dynamic(al) correction optical center
Standby.When optical center skew amount is required higher by user, can use from dynamic(al) correction optical center equipment
The optical center coordinate obtained according to optical center detection device and the centre coordinate of optical pickocff, determine
The side-play amount of optical center, is then corrected optical center, using optical center as in image acquisition
The heart, and then improve the quality of the shooting image of ultra wide-angle imaging module.
Embodiment five
A kind of image capture device of offer in the present embodiment, as shown in Figure 8, including: ultra wide-angle imaging mould
Optical center correcting unit 4 described in group 1 and embodiment four；Wherein, ultra wide-angle imaging module 1 includes
Camera lens and optical pickocff, be used for gathering image；Optical center correcting unit 4 is used for correcting described shooting
The optical center of module.
The image capture device that the present embodiment provides, it is possible to picture based on the shooting of ultra wide-angle imaging module,
The optical center of ultra wide-angle imaging module is detected, obtains accurately after optical center, then pass through light
Learn cent(e)ring device described optical center is corrected, make optical center substitute the light of ultra wide-angle imaging module
Learn the center of sensor, become the center of entire image, and then improve the shooting matter of ultra wide-angle imaging module
Amount.
During optical center is detected, use the point choosing on circumference, then pass through
Geometrical principle is calculated, rather than detects the method for brightness maximum point in traditional optical Spot detection method,
The accuracy of the optical center that detection obtains is higher, thus in correction optical center, it is possible to obtain more
The amount of optical center skew accurately, the optical center after correction is more accurate, the most again by correcting light
The ultra wide-angle imaging module shooting picture at center, obtains the picture that picture quality is higher so that shooting effect
Fruit more preferably, reduces diplopia, fuzzy phenomenon.
It addition, during optical center detects, ordinary light source, preferably white light shooting picture can be used,
Requirement to light source is relatively low, relative to using uniform parallel light shooting figure in traditional optical Spot detection method
The method of sheet, it is possible to reduce the cost of light source, and then reduce the cost of whole ultra wide-angle imaging module.
It should be noted that each embodiment in this specification all uses the mode gone forward one by one to describe, each
What embodiment stressed is all the difference with other embodiments, identical similar between each embodiment
Part see mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (12)
1. an optical center detection method, it is characterised in that based on ultra wide-angle imaging module is described super
Wide-angle imaging module includes that camera lens and optical pickocff, described optical center detection method comprise the following steps:
Obtain and take in the picture that the light of described camera lens is formed on described optical pickocff, described picture bag
Containing circular image；
Choose any point on described picture as initial point, set up coordinate system；
Choose at least three point on described circular image circumference, obtain the coordinate of described at least three point；
Normal equation and the coordinate of described at least three point according to circle calculate central coordinate of circle, the described center of circle
Coordinate is optical center.
Optical center detection method the most according to claim 1, it is characterised in that described picture is
Rectangle, described in choose any point on described picture as initial point, set up coordinate system particularly as follows:
Choose any summit of described picture as initial point, set up coordinate system.
Optical center detection method the most according to claim 2, it is characterised in that described in choose institute
State at least three point on circular image circumference, obtain the coordinate of described at least three point particularly as follows:
Choose any three points on described circular image circumference, obtain the coordinate of described three points.
Optical center detection method the most according to claim 1, it is characterised in that described in choose institute
State any point on picture as initial point, set up coordinate system particularly as follows:
Choose any point on described circular image circumference and, as initial point, set up coordinate system.
Optical center detection method the most according to claim 4, it is characterised in that described in choose institute
State at least three point on circular image circumference, obtain the coordinate of described at least three point particularly as follows:
Choose any three points in addition to initial point on described circular image circumference, obtain described three points
Coordinate.
Optical center detection method the most according to claim 1, it is characterised in that described in choose institute
State any point on picture as initial point, set up coordinate system particularly as follows:
That chooses on described picture in the region between described circular image circumference and described picture profile is any
A little as initial point, set up coordinate system.
7. according to the optical center detection method described in claim 1-6, it is characterised in that described acquisition
Taking in the picture that the light of described ultra wide-angle imaging module is formed, described light is the light of white light source.
8. an optical center detection device, it is characterised in that based on ultra wide-angle imaging module, described light
Central detection device includes:
Image capture module, takes in, for obtaining, the picture that the light of described ultra wide-angle imaging module is formed,
Described picture comprises circular image；
Establishment of coordinate system module, sets up coordinate system for any point chosen on described picture as initial point；
Coordinate chooses module, for obtaining the coordinate of at least three point on described circular image circumference；
Computing module, described computing module is according to round normal equation and the coordinate meter of described at least three point
Calculate central coordinate of circle.
9. an optical center bearing calibration, it is characterised in that based on ultra wide-angle imaging module, described in take the photograph
As module includes that camera lens and optical pickocff, described optical center bearing calibration include:
The optical center detection method described in claim 1 is used to determine the light of described ultra wide-angle imaging module
Center；
The optical center of described ultra wide-angle imaging module is substituted the center of described optical pickocff, as figure
As gathering center.
10. an optical center correcting unit, it is characterised in that including:
Optical center detection device described in claim 8；
Image acquisition center positioning device, for substituting institute by the optical center of described ultra wide-angle imaging module
State the center of optical pickocff, as image acquisition center.
11. optical center correcting units according to claim 10, it is characterised in that described image
Gathering center positioning device is from dynamic(al) correction optical center equipment.
12. 1 kinds of image capture devices, it is characterised in that including: ultra wide-angle imaging module and right
Require the optical center correcting unit described in 10 or 11；
Wherein, described camera module includes camera lens and optical pickocff, is used for gathering image；
Described optical center correcting unit is for correcting the optical center of described camera module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610278248.3A CN105976363A (en) | 2016-04-29 | 2016-04-29 | Optical center detection method, correction method and related device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610278248.3A CN105976363A (en) | 2016-04-29 | 2016-04-29 | Optical center detection method, correction method and related device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105976363A true CN105976363A (en) | 2016-09-28 |
Family
ID=56993961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610278248.3A Pending CN105976363A (en) | 2016-04-29 | 2016-04-29 | Optical center detection method, correction method and related device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105976363A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839976A (en) * | 2016-12-22 | 2017-06-13 | 歌尔科技有限公司 | A kind of method and device at detector lens center |
| CN107071400A (en) * | 2017-05-31 | 2017-08-18 | 信利光电股份有限公司 | A kind of optical centre measuring system of wide-angle imaging module |
| CN107174132A (en) * | 2017-06-29 | 2017-09-19 | 苏州美杯信息科技有限公司 | Garland printer, garland printing adjusting apparatus and method and computer-readable medium |
| CN107255557A (en) * | 2017-05-02 | 2017-10-17 | 深圳大学 | A kind of optical centre detection method and device of camera |
| CN108040249A (en) * | 2017-11-24 | 2018-05-15 | 深圳市比亚迪电子部品件有限公司 | A kind of camera optical centre calibration jig |
| CN108318224A (en) * | 2018-01-12 | 2018-07-24 | 信利光电股份有限公司 | Optical centre detection method and detection device, bearing calibration |
| CN109188836A (en) * | 2018-09-19 | 2019-01-11 | 深圳睿晟自动化技术有限公司 | The central point of calibration light source pattern to projection optical device central axis method |
| CN109858423A (en) * | 2019-01-25 | 2019-06-07 | 上海思立微电子科技有限公司 | Fingerprint image acquisition methods and equipment |
| CN111638043A (en) * | 2020-06-10 | 2020-09-08 | 浙江大华技术股份有限公司 | Optical center determining method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618882A (en) * | 2013-12-12 | 2014-03-05 | 湖南理工学院 | Multi-channel video intelligent monitoring system based on fish-eye lens |
| CN103679166A (en) * | 2013-11-22 | 2014-03-26 | 江西好帮手电子科技有限公司 | Method and system for quickly acquiring center offset of fisheye lens in equipment |
| CN104408706A (en) * | 2014-09-30 | 2015-03-11 | 天津艾思科尔科技有限公司 | A method for detecting and locating fire based on double-waveband image |
-
2016
- 2016-04-29 CN CN201610278248.3A patent/CN105976363A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103679166A (en) * | 2013-11-22 | 2014-03-26 | 江西好帮手电子科技有限公司 | Method and system for quickly acquiring center offset of fisheye lens in equipment |
| CN103618882A (en) * | 2013-12-12 | 2014-03-05 | 湖南理工学院 | Multi-channel video intelligent monitoring system based on fish-eye lens |
| CN104408706A (en) * | 2014-09-30 | 2015-03-11 | 天津艾思科尔科技有限公司 | A method for detecting and locating fire based on double-waveband image |
Non-Patent Citations (1)
| Title |
|---|
| 王胤江: "三点法定圆及其圆心坐标简易求解", 《矿山测量》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839976A (en) * | 2016-12-22 | 2017-06-13 | 歌尔科技有限公司 | A kind of method and device at detector lens center |
| CN106839976B (en) * | 2016-12-22 | 2020-05-12 | 歌尔科技有限公司 | Method and device for detecting lens center |
| CN107255557A (en) * | 2017-05-02 | 2017-10-17 | 深圳大学 | A kind of optical centre detection method and device of camera |
| CN107071400A (en) * | 2017-05-31 | 2017-08-18 | 信利光电股份有限公司 | A kind of optical centre measuring system of wide-angle imaging module |
| CN107174132A (en) * | 2017-06-29 | 2017-09-19 | 苏州美杯信息科技有限公司 | Garland printer, garland printing adjusting apparatus and method and computer-readable medium |
| CN108040249A (en) * | 2017-11-24 | 2018-05-15 | 深圳市比亚迪电子部品件有限公司 | A kind of camera optical centre calibration jig |
| CN108318224A (en) * | 2018-01-12 | 2018-07-24 | 信利光电股份有限公司 | Optical centre detection method and detection device, bearing calibration |
| CN109188836A (en) * | 2018-09-19 | 2019-01-11 | 深圳睿晟自动化技术有限公司 | The central point of calibration light source pattern to projection optical device central axis method |
| CN109188836B (en) * | 2018-09-19 | 2021-01-29 | 深圳睿晟自动化技术有限公司 | Method for correcting center point of light source pattern to central axis of projection optical device |
| CN109858423A (en) * | 2019-01-25 | 2019-06-07 | 上海思立微电子科技有限公司 | Fingerprint image acquisition methods and equipment |
| CN111638043A (en) * | 2020-06-10 | 2020-09-08 | 浙江大华技术股份有限公司 | Optical center determining method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105976363A (en) | Optical center detection method, correction method and related device | |
| US9998719B2 (en) | Non-planar surface projecting system, auto-calibration method thereof, and auto-calibration device thereof | |
| CN104778656B (en) | Fisheye image correcting method based on spherical perspective projection | |
| CN103776419B (en) | A kind of binocular distance measurement method improving measurement range | |
| CN108776980A (en) | A kind of scaling method towards lenticule light-field camera | |
| CN103279956B (en) | A kind of method detecting chip mounter components and parts positioning precision | |
| CN111220128B (en) | Monocular focusing measuring method and terminal | |
| Wang et al. | Out-of-focus color camera calibration with one normal-sized color-coded pattern | |
| CN106657983B (en) | The parameter test method and device of panoramic camera | |
| CN107633489A (en) | The fish eye lens center of circle, which is brought up again, takes reflection method distortion correction method | |
| CN104299218A (en) | Projector calibration method based on lens distortion rule | |
| CN104931421B (en) | The positioning focusing method of liquid crystal panel vision detection system | |
| CN106600549A (en) | Method and device for correcting fisheye image | |
| CN110261069B (en) | Detection method for optical lens | |
| CN106643567A (en) | Lane deviation system production line calibration board verification method and system | |
| CN115830103A (en) | Monocular color-based transparent object positioning method and device and storage medium | |
| CN103676487B (en) | A kind of workpiece height measurement mechanism and bearing calibration thereof | |
| CN107071400A (en) | A kind of optical centre measuring system of wide-angle imaging module | |
| CN109186942A (en) | The test parallelism detection method, apparatus and readable storage medium storing program for executing of structure light video camera head | |
| JP2014060549A (en) | Illuminance output device, luminance output device and image projection device | |
| CN108318224A (en) | Optical centre detection method and detection device, bearing calibration | |
| TW201326735A (en) | Method and system for measuring width | |
| CN106846395B (en) | Method and system for calculating area of target graph in photo | |
| CN105758337A (en) | Method for obtaining included angel between a lens plane and an image sensor plane | |
| CN108205799A (en) | A kind of image split-joint method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160928 |
|
| RJ01 | Rejection of invention patent application after publication |