CN108594589A - A kind of camera module detecting device - Google Patents
A kind of camera module detecting device Download PDFInfo
- Publication number
- CN108594589A CN108594589A CN201810437848.9A CN201810437848A CN108594589A CN 108594589 A CN108594589 A CN 108594589A CN 201810437848 A CN201810437848 A CN 201810437848A CN 108594589 A CN108594589 A CN 108594589A
- Authority
- CN
- China
- Prior art keywords
- camera module
- reference projection
- projection face
- face
- detecting device
- 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.)
- Withdrawn
Links
- 238000003384 imaging method Methods 0.000 claims abstract description 30
- 230000008859 change Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B43/00—Testing correct operation of photographic apparatus or parts thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The application is suitable for optical technical field, provides a kind of camera module detecting device, including the first fixing bracket, mobile holder and processor.One of first fixing bracket platform and mobile trestle table are for being arranged camera module, another is for being arranged reference projection face.First fixing bracket platform is matched with mobile trestle table, for changing the distance between camera module and reference projection face.Camera module is used to be mutually parallel when its imaging surface and reference projection face, and the distance between camera module and reference projection face at least two different preset distances when, to reference projection surface launching structure light, to obtain at least two structure light images.Processor receives at least two structure light images, and in the case of the difference of known at least two different preset distances, by comparing at least two structure light images, calculates the rigging error of camera module.The camera module detecting device is simple in structure and at low cost.
Description
Technical field
The application belongs to optical technical field more particularly to a kind of camera module detecting device.
Background technology
" structure light (structure light) " refers to the light with specific modality, is designed to striped form, rule
Then dot matrix form, grid form, speckle form, coding form etc., the light shape of even more complicated form.It is fluffy with optical technology
The exhibition of breaking out, will be used wider and wider for structure light is general, for example, identification, projecting apparatus, three-dimensional (Three-dimensional,
3D) profile reproduction, depth survey, anti-counterfeiting identification etc..And the practical application of structure light is necessarily dependent upon camera module to realize, and
The imaging precision of camera module is required very high.Therefore the parameter of camera module must be calibrated in the production phase.Now
Structure of the detecting device it is complicated and expensive.
Invention content
Technical problems to be solved in this application are to provide a kind of camera module detecting device, it is intended to it is simple in structure and at
This is low.
The application is achieved in that a kind of camera module detecting device, the rigging error for detecting a camera module.
The camera module detecting device includes the first fixing bracket, mobile holder and processor.The first fixing bracket platform and the movement
For the camera module to be arranged one of in trestle table, another is for being arranged a reference projection face.The first fixation branch
Pallet is matched with the movement trestle table so that the imaging surface of the camera module is mutually parallel with the reference projection face, and is used for
Change the distance between the camera module and the reference projection face.The camera module is used to work as its imaging surface and reference projection face phase
It is mutually parallel, and the distance between the camera module and the reference projection face at least two different preset distances when, to the throwing
Shadow plane of reference emitting structural light, and shot to being formed by structured light patterns on the reference projection face, to obtain at least two
Open structure light image.The processor is electrically connected with the camera module, for receiving at least two structure light images, and known
In the case of difference between at least two different preset distances, by comparing at least two structure light images, to calculate
Go out the rigging error of the camera module.
Further, which is used for the line when the central point of the central point and reference projection face of its imaging surface
Perpendicular to the reference projection face, and the distance between the camera module and the reference projection face are at least two different pre- spacings
From when, shot to the reference projection surface launching structure light, and to being formed by structured light patterns on the reference projection face, with
Obtain at least two structure light images.
Further, when the distance between the camera module and the reference projection face are the first preset distance, the camera shooting
Module obtains first structure light image.When the distance between the camera module and the reference projection face are the one or two preset distance
When, which obtains second structure light image.
Further, which is arranged on the first fixing bracket platform, fixed.The camera module is arranged
On the movement trestle table so that its imaging surface and reference projection face are mutually parallel, and the camera module can be in the movement holder
The driving lower edge of platform is moved perpendicular to the direction in the reference projection face, with change the camera module and the reference projection face it
Between distance.
Further, which is arranged on the first fixing bracket platform, fixed.The reference projection face is arranged
On the movement trestle table so that the reference projection face and the imaging surface of the camera module are mutually parallel, and the reference projection face
It can be moved perpendicular to the direction of its own in the driving lower edge of the movement trestle table, be taken the photograph with this with changing the reference projection face
As the distance between module.
Further, which further includes the second fixing bracket platform.The camera module is placed on the shifting
On dynamic trestle table.A reference projection face is placed respectively on the first fixing bracket platform and the second fixing bracket platform, this two
Reference projection face is mutually parallel, and different from the distance between the camera module.Drive of the camera module in the movement trestle table
The direction for being parallel to the reference projection face under dynamic along its imaging surface is moved, until successively reaching the imaging surface of the camera module
Central point and one of them reference projection face central point line perpendicular to the position in the reference projection face, with change should
The distance between camera module and two reference projection faces.
Further, which first moves the center until its imaging surface central point and one of reference projection face
The line of point is perpendicular to the position in the reference projection face, and the camera module obtains first structure light image at this time；Then this is taken the photograph
As module continues to move to until the line of its imaging surface central point and the central point in another reference projection face is perpendicular to the projection
The position of the plane of reference, second structure light image of camera module acquisition at this time.
Further, which is additionally operable to calculate corrected parameter according to the rigging error of the camera module.
Further, which is additionally operable to handle one in this at least two structure light images, as
Reference chart in the actual application of the camera module.
Compared with prior art, advantageous effect is the application：It is mutual by the first fixing bracket platform and mobile trestle table
Cooperation, to change the distance between the reference projection face and the camera module, then by the processor to the camera module extremely
Few structure light image captured twice is compared, and can calculate the rigging error of the camera module, therefore simple in structure
And it is at low cost.
Description of the drawings
Fig. 1 is the structural schematic diagram for the camera module detecting device that the application first embodiment provides.
Fig. 2 is the structural schematic diagram for the camera module detecting device that the application second embodiment provides.
Fig. 3 is the structural schematic diagram for the camera module detecting device that the application 3rd embodiment provides.
Specific implementation mode
It is with reference to the accompanying drawings and embodiments, right in order to make the object, technical solution and advantage of the application be more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
As shown in Figure 1, a kind of camera module detecting device 100 provided herein, for detecting a camera module 200
Rigging error.The camera module 200 can launch structure light, and the project structured light is on a reference projection face 300
A structured light patterns (such as speckle pattern) are formed, which shoots the structured light patterns to obtain a structure light image.
The camera module detecting device 100 includes the first fixing bracket platform 11, mobile trestle table 20 and processor 30.
For the camera module 200 to be arranged one of in the first fixing bracket platform 11 and the movement trestle table 20,
Another is for being arranged the reference projection face 300.The first fixing bracket platform 11 is matched with the movement trestle table 20 so that should
The imaging surface of camera module 200 is mutually parallel with the reference projection face 300, and for changing the camera module 200 and the projection
The distance between plane of reference 300.
The camera module 200 is used to be mutually parallel when its imaging surface and the reference projection face 300, and the camera module 200
When the distance between the reference projection face 300 is at least two different preset distance, to 300 emitter junction of reference projection face
Structure light, and shot to being formed by structured light patterns on the reference projection face 300, to obtain at least two structure light figures
Picture.For example, when the distance between the camera module 200 and the reference projection face 300 are the first preset distance, the camera module
200 obtain first structure light image；When the distance between the camera module 200 and the reference projection face 300 are second predetermined
Apart from when, the camera module 200 obtain second structure light image.
Optionally, which is used for the central point when central point and the reference projection face 300 of its imaging surface
Line is perpendicular to the reference projection face 300, and the distance between the camera module 200 and the reference projection face 300 are at least two
When a different preset distance, to the 300 emitting structural light of reference projection face, and to being formed by the reference projection face 300
Structured light patterns are shot, to obtain at least two structure light images.
Need to say in advance, in the first, second, third embodiment being set forth below, with camera module 200 at
The central point of image planes and the line of the central point in the reference projection face 300 illustrate for the reference projection face 300,
So, embodiments herein is not limited to this, when imaging surface and reference projection face 300 are in the case where being mutually parallel, shooting knot
Structure light image is also feasible.
The processor 30 is electrically connected with the camera module 200, for receiving at least two structure light images, and known
In the case of difference between first preset distance and second preset distance, by comparing at least two structure light images,
To calculate the rigging error of the camera module 200.
The processor 30 is additionally operable to calculate corrected parameter according to the rigging error of the camera module 200, in the camera shooting
Taking pictures for module 200 is modified in the process, improves the imaging precision of the camera module 200.
The processor 30 is additionally operable to handle an at least structure light image, as the reality in the camera module 200
Reference chart in the application process of border.For example it when the camera module 200 is used for identification, needs project structured light to be measured
On object, the image of the structure light reflected by the object under test is obtained, acquired image is compared with reference chart,
It can carry out identification.Therefore reference chart must be used in the actual application of structure light, and the precision of reference chart is wanted
Ask very high.
As shown in Figure 1, in the first embodiment, which is arranged on the first fixing bracket platform 11, Gu
It is fixed motionless；The camera module 200 is arranged on the movement trestle table 20 so that the central point of its imaging surface and the reference projection face
The line of 300 central point perpendicular to the reference projection face 300, the camera module 200 under the driving of the movement trestle table 20,
Along being moved perpendicular to the direction in the reference projection face 300, with change the camera module 200 and the reference projection face 300 it
Between distance.
As shown in Fig. 2, in a second embodiment, which is arranged on the first fixing bracket platform 11, it is fixed
It is motionless.The reference projection face 300 is arranged on the movement trestle table 20 so that the reference projection face 300 and the camera module 200
Central point line perpendicular to the reference projection face 300.It hangs down in the movement trestle table 20 driving lower edge in the reference projection face 300
It is directly moved in the direction of its own, to change the distance between the reference projection face 300 and the camera module 200.
As shown in figure 3, in the third embodiment, which further includes the second fixing bracket platform 12.
The camera module 200 is placed on the movement trestle table 20.On the first fixing bracket platform 11 and the second fixing bracket platform 12
The reference projection face 300 is placed respectively, which is mutually parallel, and between the camera module 200
Distance it is different.The camera module 200 is parallel to the reference projection face under the driving of the movement trestle table 20, along its imaging surface
300 direction is moved, until successively reaching the central point of the imaging surface of the camera module 200 and one of reference projection
The line of the central point in face 300 perpendicular to the position in the first reference projection face 300, with change the camera module 200 with this two
The distance between a reference projection face 300.
Specifically, in detection process, the camera module 200 it is first mobile until its imaging surface central point and this one of them
The line of the central point in reference projection face 300 is perpendicular to the position in the reference projection face 300, and the camera module 200 obtains at this time
First structure light image；Then the camera module 200 continues to move to until its imaging surface central point and another reference projection
The line of the central point in face 300 is perpendicular to the position in the reference projection face 300, and the camera module 200 obtains second knot at this time
Structure light image.
In the first embodiment and second of embodiment, the camera module 200 is along the side perpendicular to the reference projection face 300
To movement, therefore after being measured, it is necessary to remove the camera module 200 from the movement trestle table 20, then in the shifting
Another camera module 200 is installed on dynamic trestle table 20, the measurement of next camera module 200 could be carried out, when more wasteful
Between, it is unfavorable for pile line operation.
Compared with first, second embodiment, since the camera module 200 in 3rd embodiment is along being parallel to the projection
The direction of the plane of reference 300 is moved, therefore can be mounted on multiple camera modules 200 on the movement trestle table 300 simultaneously,
Being carried out at the same time the detections of two camera modules 200, (i.e. each camera module 200 is aligned one of reference projection face respectively
300), so as to effectively save the time, working efficiency is improved, pile line operation is conducive to.
Compared with prior art, the camera module detecting device 100 of the application by the first fixing bracket platform 11 and moves
Dynamic trestle table 20 cooperates, to change the distance between the reference projection face 300 and the camera module 200, then by this
The structure light image captured at least twice to the camera module 200 of processor 30 is compared, and can calculate the camera shooting mould
The rigging error of group 200, thus it is simple in structure and at low cost.
The foregoing is merely the preferred embodiments of the application, not limiting the application, all essences in the application
All any modification, equivalent and improvement etc., should be included within the protection domain of the application made by within refreshing and principle.
Claims (9)
1. a kind of camera module detecting device, the rigging error for detecting a camera module, which is characterized in that the camera module
Detection device includes the first fixing bracket, mobile holder and processor；In the first fixing bracket platform and the movement trestle table
One of them is for being arranged the camera module, another is for being arranged a reference projection face；The first fixing bracket platform and the shifting
Dynamic trestle table matches so that the imaging surface of the camera module is mutually parallel with the reference projection face, and for changing the camera shooting
The distance between module and the reference projection face；The camera module is used to be mutually parallel when its imaging surface and the reference projection face,
And the distance between the camera module and the reference projection face be when being at least two different preset distances, to the reference projection face
Emitting structural light, and shot to being formed by structured light patterns on the reference projection face, to obtain at least two structure lights
Image；The processor is electrically connected with the camera module, for receiving at least two structure light images, and known at least two
In the case of difference between different preset distances, by comparing at least two structure light images, to calculate the camera shooting
The rigging error of module.
2. camera module detecting device as described in claim 1, which is characterized in that the camera module is used for when its imaging surface
The line of the central point in central point and the reference projection face is perpendicular to the reference projection face, and the camera module and the reference projection
When the distance between face is at least two different preset distance, join to the reference projection surface launching structure light, and to the projection
It examines and is formed by structured light patterns on face and is shot, to obtain at least two structure light images.
3. camera module detecting device as claimed in claim 1 or 2, which is characterized in that when the camera module and the projection are joined
Examine the distance between face be the first preset distance when, the camera module obtain first structure light image；When the camera module with
When the distance between the reference projection face is the second preset distance, which obtains second structure light image.
4. camera module detecting device as claimed in claim 1 or 2, which is characterized in that reference projection face setting this
It is fixed on one fixing bracket platform；The camera module is arranged on the movement trestle table so that its imaging surface and the projection are joined
The face of examining is mutually parallel, and the camera module can the movement trestle table driving lower edge perpendicular to the reference projection face direction into
Row movement, to change the distance between the camera module and the reference projection face.
5. camera module detecting device as claimed in claim 1 or 2, which is characterized in that the camera module setting this first
It is fixed on fixing bracket platform；The reference projection face is arranged on the movement trestle table so that the reference projection face is taken the photograph with this
As the imaging plane of module is mutually parallel, and the reference projection face can the movement trestle table driving lower edge perpendicular to its own
Direction moved, to change the distance between the reference projection face and the camera module.
6. camera module detecting device as described in claim 1, which is characterized in that the camera module detecting device further includes
Two fixing bracket platforms；The camera module is placed on the movement trestle table；The first fixing bracket platform and second fixing bracket
The reference projection face is placed on platform respectively, which is mutually parallel, and between the camera module away from
From difference；The direction that the camera module is parallel to the reference projection face under the driving of the movement trestle table along its imaging surface carries out
It is mobile, until successively reaching the company of the central point of the imaging surface of the camera module and the central point in one of them reference projection face
Line is perpendicular to the position in the reference projection face, to change the distance between the camera module and two reference projection faces.
7. camera module detecting device as claimed in claim 6, which is characterized in that the camera module is first mobile until its imaging
The line of face central point and the central point in one of reference projection face is perpendicular to the position in the reference projection face, the camera shooting at this time
Module obtains first structure light image；Then the camera module continues to move to until its imaging surface central point and another projection
The line of the central point of the plane of reference is perpendicular to the position in the reference projection face, and the camera module obtains second structure light figure at this time
Picture.
8. camera module detecting device as described in claim 1, which is characterized in that the processor is additionally operable to according to the camera shooting mould
The rigging error of group calculates corrected parameter.
9. camera module detecting device as described in claim 1, which is characterized in that the processor is additionally operable to this at least two
One in structure light image is handled, as the reference chart in the actual application of the camera module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437848.9A CN108594589A (en) | 2018-05-09 | 2018-05-09 | A kind of camera module detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437848.9A CN108594589A (en) | 2018-05-09 | 2018-05-09 | A kind of camera module detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108594589A true CN108594589A (en) | 2018-09-28 |
Family
ID=63636564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810437848.9A Withdrawn CN108594589A (en) | 2018-05-09 | 2018-05-09 | A kind of camera module detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108594589A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632268A (en) * | 2018-12-07 | 2019-04-16 | 深圳奥比中光科技有限公司 | A kind of smooth safety test device and method |
| CN111175988A (en) * | 2018-11-13 | 2020-05-19 | 宁波舜宇光电信息有限公司 | Detection, calibration and assembly method of structured light projection module assembly device |
| CN111855156A (en) * | 2020-07-29 | 2020-10-30 | 杭州海康微影传感科技有限公司 | Sampling control method and testing device for lens detection and sampling tool |
| CN111882596A (en) * | 2020-03-27 | 2020-11-03 | 浙江水晶光电科技股份有限公司 | Structured light module three-dimensional imaging method and device, electronic equipment and storage medium |
-
2018
- 2018-05-09 CN CN201810437848.9A patent/CN108594589A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175988A (en) * | 2018-11-13 | 2020-05-19 | 宁波舜宇光电信息有限公司 | Detection, calibration and assembly method of structured light projection module assembly device |
| CN111175988B (en) * | 2018-11-13 | 2021-12-10 | 宁波舜宇光电信息有限公司 | Detection, calibration and assembly method of structured light projection module assembly device |
| CN109632268A (en) * | 2018-12-07 | 2019-04-16 | 深圳奥比中光科技有限公司 | A kind of smooth safety test device and method |
| CN111882596A (en) * | 2020-03-27 | 2020-11-03 | 浙江水晶光电科技股份有限公司 | Structured light module three-dimensional imaging method and device, electronic equipment and storage medium |
| CN111882596B (en) * | 2020-03-27 | 2024-03-22 | 东莞埃科思科技有限公司 | Three-dimensional imaging method and device for structured light module, electronic equipment and storage medium |
| CN111855156A (en) * | 2020-07-29 | 2020-10-30 | 杭州海康微影传感科技有限公司 | Sampling control method and testing device for lens detection and sampling tool |
| CN111855156B (en) * | 2020-07-29 | 2022-07-26 | 杭州海康微影传感科技有限公司 | Sampling control method and testing device for lens detection and sampling tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108594589A (en) | A kind of camera module detecting device | |
| KR102096806B1 (en) | 3D sensor system and 3D data acquisition method | |
| CN106550228B (en) | The equipment for obtaining the depth map of three-dimensional scenic | |
| CN105157604B (en) | The quick calibrating method of outfield multi beam Vision Measuring System With Structured Light Stripe | |
| US10563977B2 (en) | Three-dimensional measuring device | |
| CN101957183B (en) | Structured light projection-based high-speed three-dimensional measurement system | |
| KR20170135914A (en) | Multi-line laser array three-dimensional scanning system and multi-line laser array three-dimensional scanning method | |
| TWI460394B (en) | Three-dimensional image measuring apparatus | |
| US20140192187A1 (en) | Non-contact measurement device | |
| CN205246014U (en) | Structured light projection -based high -speed three -dimensional measurement system | |
| KR101640935B1 (en) | Three dimensional shape measurment apparatus | |
| JPWO2006013635A1 (en) | Three-dimensional shape measuring method and apparatus | |
| KR101371376B1 (en) | Three dimensional shape measurment apparatus | |
| US10365086B2 (en) | Method and scanner for touch free determination of a position and 3-dimensional shape of products on a running surface | |
| CN104197837B (en) | The non-contact optical measuring method and device of a kind of complex surface object volume | |
| CN112762859B (en) | High-precision three-dimensional measuring device for sine stripe structured light of non-digital optical machine | |
| CN106840029A (en) | A kind of reflective object surface profiling device high and method | |
| JP2015132540A (en) | Distance measuring device and robot picking system | |
| CA2956319A1 (en) | Calibration for 3d imaging with a single-pixel camera | |
| CN103983207A (en) | Three-dimensional scanning endoscope and three-dimensional scanning method | |
| JP2012103076A (en) | Apparatus and method for taking three-dimensional measurements | |
| CN105075419B (en) | The element identifying system of component mounter | |
| CN108036742B (en) | Line structured light three-dimensional sensing method and device | |
| US9377376B2 (en) | Test apparatus for electro-optical printed circuit boards | |
| JP2017198470A (en) | Measurement device, measurement method, system, and goods manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518055 room 2101, Kim Chi Chi house, 1 Tong Ling Road, Taoyuan street, Shenzhen, Guangdong, Nanshan District Applicant after: SHENZHEN FUSHI TECHNOLOGY Co.,Ltd. Address before: 518055 Shenzhen, Nanshan District, Guangdong Xili Street Honghua Ling Industrial Zone 2 District 1 District 5 Building (Xi Bian) Applicant before: SHENZHEN FUSHI TECHNOLOGY Co.,Ltd. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180928 |