CN206489355U - A kind of drive device of multi-focus sequence images - Google Patents
A kind of drive device of multi-focus sequence images Download PDFInfo
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- CN206489355U CN206489355U CN201621277462.9U CN201621277462U CN206489355U CN 206489355 U CN206489355 U CN 206489355U CN 201621277462 U CN201621277462 U CN 201621277462U CN 206489355 U CN206489355 U CN 206489355U
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- imaging system
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- focus sequence
- drive
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Abstract
The utility model provides a kind of drive device of multi-focus sequence images, including drive system, and drive system is used to drive imaging system to move along a straight line, and it is constant to be kept into the image distance of picture system acquisition reference object, focal length；During imaging system system drive driven moves along a straight line, the multi-focus sequence image of reference object is gathered.The utility model realizes that multiple focussing image is gathered using the principle of mobile imaging system, and the magnifying power of the multi-focus sequence image focal zone of acquisition is identical, is conducive to carrying out image registration；The multi-focus sequence image of acquisition has clear and definite depth information, is conducive to carrying out three-dimensional reconstruction；The utility model obtains multi-focus sequence image by the way of quantitative, by the displacement for setting focal position in adjacent imaging twice, it can ensure that mobile distance is less than the scope of the camera lens depth of field, it is ensured that the multi-focus sequence image finally obtained does not lose focus information.
Description
Technical field
The utility model is related to IMAQ instrument field, and in particular to a kind of driving dress of multi-focus sequence images
Put.
Background technology
Due to the limitation of the camera lens depth of field, the imaging of camera single tends not to obtain the full picture rich in detail of reference object.It is a kind of
Conventional solution is the multi-focus sequence image that the different depth of focus positions of reference object are obtained using camera, is then merged
Into the complete clearly image of a width, the process is referred to as multi-focus image fusion.Full picture rich in detail after fusion is conducive to human eye to perceive,
It is also beneficial to computer and carries out image detection, image recognition and image understanding.
In addition to above-mentioned multi-focus image fusion field, multi-focus sequence image is additionally operable to three-dimensional reconstruction field, for example, exist
Focusing on can also use in the technologies such as shape recovery (Shape from focus), defocus shape recovery (Shape from defocus)
To multi-focus sequence image.
Realized more than the collection of current multi-focus sequence image using the principle of moving lens, i.e., by mobile imaging system
The position acquisition multi-focus sequence image of camera lens, it is difficult quantitatively to obtain required multi-focus sequence chart that the shortcoming of this method, which is,
Picture, and due to the non-linear relation between camera lens displacement and the movement of depth of field position, it is easily caused the multi-focus sequence of acquisition
Row image lacks part focus information, and this will influence final image syncretizing effect, and between this multi-focus sequence image
It is not easy to set up accurate geometrical relationship and depth relationship, is unfavorable for carrying out image registration and three-dimensionalreconstruction.
The content of the invention
For the deficiencies in the prior art, the utility model provides a kind of driving of multi-focus sequence images
Device, including drive system, the drive system are used to drive imaging system to move along a straight line, and are kept into as system acquisition is clapped
Image distance, the focal length for taking the photograph object are constant；
The drive system includes dynamical system, transmission guiding mechanism and support, the dynamical system and transmission Guiding machine
Structure is connected, for driving transmission guiding mechanism；Transmission guiding mechanism is used to that imaging system will to be installed, and is provided for imaging system
Tracks；Dynamical system and transmission guiding mechanism are installed on support.
Further, dynamical system includes controller, driver, stepper motor and power supply, the controller and driver
It is connected, driver is connected with stepper motor, controller and driver are connected with power supply respectively.
Further, the transmission guiding mechanism includes shaft coupling, ball screw, heart axle, motion guide plate and camera company
Fishplate bar, one end of the shaft coupling is connected with ball screw, and the other end of shaft coupling is connected with stepper motor；The ball
Screw rod and heart axle are connected with motion guide plate；The two ends of ball screw and the heart axle are by the support for being embedded with rolling bearing
Seat supports；One end of the camera connecting plate is connected with motion guide plate, the other end and the imaging system phase of camera connecting plate
Connection.
Further, stating support includes upper backup pad, column, lower supporting plate and runners；The upper backup pad and lower support
By upright supports between plate, the runners is arranged on lower supporting plate；
The controller, driver, stepper motor support base and power supply are fixed on upper backup pad, the heart axle and ball
The two ends of screw rod are separately fixed on upper backup pad and lower supporting plate.
Further, the axis direction of the heart axle is parallel with the optical axis direction of imaging system.
The utility model additionally provides a kind of multi-focus sequence images device, and imaging system system drive driven is done
During linear motion, the multi-focus sequence image of reference object is gathered.
Further, the linear motion that drive system driving imaging system is done is linear uniform motion, and imaging system is straight
Line motion process medium time interval gathers multi-focus sequence image.
Further, the linear motion that drive system driving imaging system is done is intermittent equidistant linear motion, into
As system gathers multi-focus sequence image in the time interval that motion stops.
Further, the distance of the adjacent imaging system of IMAQ twice motion is less than the depth of field of imaging system.
Compared with prior art, the utility model has following technique effect：
1. the utility model realizes that multiple focussing image is gathered using the principle of mobile imaging system, the multi-focus sequence of acquisition
The magnifying power of image focus area is identical, is conducive to carrying out image registration；The multi-focus sequence image of acquisition has clear and definite deep
Information is spent, is conducive to carrying out three-dimensional reconstruction；
2. the utility model obtains multi-focus sequence image by the way of quantitative, gathered by setting in adjacent imaging twice
The displacement of burnt position, it is ensured that mobile distance is less than the scope of the camera lens depth of field, it is ensured that the multi-focus sequence finally obtained
Image does not lose focus information；
3. the utility model is simple in construction, using driving stepper motor imaging system, realize that convenient and cost is low.
Brief description of the drawings
Fig. 1 is the front view of the utility model multi-focus sequence images device；
Fig. 2 is the focal position of the reference object corresponding to the multi-focus sequence image that the utility model is gathered；
Label is represented in figure:1-control it；2-driver；3-wire；4-stepper motor；5-power supply；6-shaft coupling
Device；7-stepper motor support base；8-ball screw；9-heart axle；10-motion guide plate；11-lower supporting plate；12-shoot
Object；13 runners；14-imaging system；15-camera connecting plate；16-column；17-upper backup pad.
Embodiment
Below by drawings and examples, the utility model is described in further detail.
Embodiment 1
As shown in figure 1, a kind of drive device of multi-focus sequence images is present embodiments provided, including drivetrain
System, the drive system is used to drive imaging system to move along a straight line, and is kept into the image distance of picture system acquisition reference object, Jiao
Away from constant；
In the present embodiment, drive system includes dynamical system, transmission guiding mechanism and support.
The dynamical system is connected with transmission guiding mechanism, for driving transmission guiding mechanism；Guiding mechanism is driven to use
Tracks are provided in installation imaging system, and for imaging system 14；Dynamical system and transmission guiding mechanism are installed in support
On.
As shown in figure 1, in the present embodiment, the dynamical system include controller 1, driver 2, wire 3, stepper motor 4,
Stepper motor support base 7 and power supply 5；The controller 1 and driver 2, driver 2 and stepper motor 4, controller 1 and power supply
5th, driver 2 is connected with power supply 5 by wire 3, and the stepper motor 4 is fixed with stepper motor support base 7 by screw to be connected
Connect.
As shown in figure 1, in the present embodiment, the transmission guidance system include shaft coupling 6, ball screw (band nut) 8,
Heart axle (band linear bearing) 9, motion guide plate 10 and camera connecting plate 15；One end of the shaft coupling 6 is defeated with ball screw 8
Enter end connection, the other end is connected with the output shaft of stepper motor 4；The linear axis on nut and heart axle 9 on the ball screw 8
Hold and be fixedly connected by screw with motion guide plate 10；The two ends of the ball screw 8 and heart axle 9 are by being embedded with rolling bearing
Support seat supports；One end of the camera connecting plate 15 is fixedly connected with motion guide plate 10 by screw, the other end with into
As system 14 is fixedly connected；
As shown in figure 1, in the present embodiment, the support includes upper backup pad 17, column 16, lower supporting plate 11 and runners
13；By column 16 and screw support, fixation between the upper backup pad 17 and lower supporting plate 11；The runners 13 is arranged on lower branch
On fagging；
As shown in figure 1, in the present embodiment, the controller 1, driver 2, stepper motor support base 7 and power supply 5 pass through
Screw is fixed on upper backup pad 17, and the support base at heart axle 9 and ball screw 8 two ends is fixed by screws in branch respectively
On fagging 17 and lower supporting plate 11.
As shown in figure 1, in the present embodiment, the axis direction of heart axle 9 is parallel with the optical axis direction of imaging system 14 so that into
As the image that system 14 is gathered is more accurate.
As shown in figure 1, in the present embodiment, imaging system 14 is suspended from outside support by camera connecting plate 15, it is to avoid support is made
Blocked into imaging.
In the present embodiment, during collection multiple focussing image, it can make driver 2 continuously and uniformly to stepping with operational control device 1
Motor 4 sends pulse, and Driving Stepping Motor 4 makes imaging system 14 do the linear uniform motion that speed is v, controls imaging system 14
T carries out IMAQ to reference object 12 at the same time, and the adjacent imaging of IMAQ twice is 14 motions apart from S
For：S=vt
In the present embodiment, collection multiple focussing image when, can also operational control device 1 make driver 2 between the regular hour
Every the pulse that identical quantity is sent to stepper motor 4, Driving Stepping Motor 4 makes imaging system 14 carry out equidistant intermittent movement,
In the time interval that motion stops, control imaging system 14 carries out IMAQ to reference object 12, so as to obtain multi-focus
Sequence image.Driver send umber of pulse calculation formula be：
In formula, n is the high-subdividing number of driver, and S is the distance (mm) that imaging system is moved every time, and θ is the step of stepper motor
Enter angle (°), L is the pitch (mm) of ball screw.
Embodiment 2
A kind of multi-focus sequence images device of the drive device driving of utilization embodiment 1 is present embodiments provided,
During the system drive driven of imaging system 14 moves along a straight line, the multi-focus sequence image of reference object 12 is gathered.
In the present embodiment, the linear motion that drive system driving imaging system 14 is done can be linear uniform motion, imaging
System 14 gathers multi-focus sequence image in motion process medium time interval；The straight line that drive system driving imaging system 14 is done
Motion can also be intermittent equidistant linear motion, and imaging system 14 gathers multi-focus in the time interval that motion stops
Sequence image.
In the present embodiment, the depth of field that imaging system is should be less than apart from S that the adjacent imaging system of IMAQ twice 14 is moved,
So as to ensure that the multi-focus sequence image finally obtained does not lose focus information.
In the present embodiment, the device can be with laterally disposed, the multi-focus sequence image for obtaining horizontal scene.
In the present embodiment, the focal position of the reference object corresponding to the multiple focussing image of collection is as shown in Fig. 2, and it gathers
Burnt position be in depth direction it is equidistant, can be corresponding with the depth of field, so as to avoid lose focus information, the poly of collection
Burnt sequence image can be applied preferably recovers field in multi-focus image fusion and the depth of focus.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is imposed any restrictions, every
Any simple modification, change and the equivalent structure change made according to the utility model technical spirit to above example, still
Belong in the protection domain of technical solutions of the utility model.
Claims (3)
1. a kind of drive device of multi-focus sequence images, it is characterised in that including drive system, the drive system is used
Moved along a straight line in driving imaging system (14), and keep imaging system (14) to gather the image distance of reference object (12), focal length not
Become；
The drive system includes dynamical system, transmission guiding mechanism and support, the dynamical system and transmission guiding mechanism phase
Connection, for driving transmission guiding mechanism；Transmission guiding mechanism is used to install imaging system, and provides fortune for imaging system (14)
Dynamic rail road；Dynamical system and transmission guiding mechanism are installed on support；
The dynamical system include controller (1), driver (2), stepper motor (4) and power supply (5), the controller (1) and
Driver (2) is connected, and driver (2) is connected with stepper motor (4), controller (1) and driver (2) respectively with power supply
(5) it is connected；
The transmission guiding mechanism includes shaft coupling (6), ball screw (8), heart axle (9), motion guide plate (10) and camera and connected
Fishplate bar (15), one end of the shaft coupling (6) is connected with ball screw (8), the other end and stepper motor of shaft coupling (6)
(4) it is connected；The ball screw (8) and heart axle (9) are connected with motion guide plate (10)；The ball screw (8) and
The two ends of heart axle (9) are by the support seat supports for being embedded with rolling bearing；One end of the camera connecting plate (15) and motion guide
Plate (10) is connected, and the other end of camera connecting plate (15) is connected with imaging system (14).
2. drive device as claimed in claim 1, it is characterised in that the support include upper backup pad (17), column (16),
Lower supporting plate (11) and runners (13)；Supported between the upper backup pad (17) and lower supporting plate (11) by column (16), institute
Runners (13) is stated on lower supporting plate；
The controller (1), driver (2), stepper motor support base (7) and power supply (5) are fixed on upper backup pad (17), institute
The two ends for stating heart axle (9) and ball screw (8) are separately fixed on upper backup pad (17) and lower supporting plate (11).
3. drive device as claimed in claim 2, it is characterised in that the axis direction and imaging system of the heart axle (9)
(14) optical axis direction is parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277462.9U CN206489355U (en) | 2016-11-25 | 2016-11-25 | A kind of drive device of multi-focus sequence images |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277462.9U CN206489355U (en) | 2016-11-25 | 2016-11-25 | A kind of drive device of multi-focus sequence images |
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| Publication Number | Publication Date |
|---|---|
| CN206489355U true CN206489355U (en) | 2017-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621277462.9U Expired - Fee Related CN206489355U (en) | 2016-11-25 | 2016-11-25 | A kind of drive device of multi-focus sequence images |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749938A (en) * | 2017-10-20 | 2018-03-02 | 长安大学 | A kind of monocular multi-focus stereo vision apparatus for robot three-dimensional environment sensing |
| CN108171743A (en) * | 2017-12-28 | 2018-06-15 | 努比亚技术有限公司 | Method, equipment and the computer for shooting image can storage mediums |
-
2016
- 2016-11-25 CN CN201621277462.9U patent/CN206489355U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749938A (en) * | 2017-10-20 | 2018-03-02 | 长安大学 | A kind of monocular multi-focus stereo vision apparatus for robot three-dimensional environment sensing |
| CN108171743A (en) * | 2017-12-28 | 2018-06-15 | 努比亚技术有限公司 | Method, equipment and the computer for shooting image can storage mediums |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 Termination date: 20191125 |