CN110505368A - A kind of more camera lens time for exposure synchronization systems of test panorama camera - Google Patents
A kind of more camera lens time for exposure synchronization systems of test panorama camera Download PDFInfo
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- CN110505368A CN110505368A CN201910806730.3A CN201910806730A CN110505368A CN 110505368 A CN110505368 A CN 110505368A CN 201910806730 A CN201910806730 A CN 201910806730A CN 110505368 A CN110505368 A CN 110505368A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
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Abstract
The embodiment of the present invention provides a kind of more camera lens time for exposure synchronization systems of test panorama camera, comprising: the identical multiple test mirrors of the number of shots of test device, panorama camera and at least two time for exposure to be measured, test device includes the turntable of translator.Control unit, when turntable is rotated according to the desired speed of the motor, the image data for controlling shooting includes pointer, turntable and angle scale；The time for exposure of the camera lens of time for exposure to be measured is determined with the fan-shaped smear angle according to the pointer shot in image data, determine the mean exposure time of all time for exposure to be measured, the difference of the time for exposure and mean exposure time that determine the camera lens of any time for exposure to be measured are within a preset range, it is determined that it is synchronous for measuring the time for exposure of camera lens.The system provides the time for exposure Synchronization Solution of the completely new more lens modules in panorama camera field, and layout is simple, and flexibility is high, and system building difficulty is small, and maintenance is easy.
Description
Technical field
The present invention relates to field of photography more particularly to a kind of more camera lens time for exposure synchronization systems of test panorama camera.
Background technique
In panorama field, panoramic camera is made of the lens module of two or more quantity, different camera lens moulds
Group independent imaging, the image mosaic for then being shot each lens module by stitching algorithm, so that 360 degree of formation is complete
Scape image.Since Zhang Quanjing's image is thus to be spliced into one from the image mosaic that a plurality of lenses mould group is individually imaged
The image opened, each property parameters of the image before splicing must unanimously or closely, these property parameters include exposing
Light time synchronization.Currently, pan-shot field belongs to emerging field, for the volume production of panorama camera, mass is needed to test, and
Do not occur the measurement scheme whether synchronized to the time for exposure of panorama camera a plurality of lenses also so far.
In the scheme of non-panoramic picture pick-up device measurement time for exposure, a kind of technology is, using LED array, to light one by one
LED on array, panorama camera shoot an image to LED array, were photographed the LED quantity lighted on image by checking,
And in conjunction with the frequency that LED is lighted, the time for exposure of panorama camera is calculated.Another technology is, utilizes the anti-of two groups of rotations
Mirror is penetrated, the light of point light source is projected on reflecting plate, by the bright line quantity on combination imaging device imaging reflecting plate and instead
The revolving speed for penetrating mirror calculates the time for exposure of panorama camera.Existing time for exposure detection technique precision is too low, and flexibility is poor,
System complex, system building difficulty is big, and mode is excessively simple and crude, and precision is low.And it does not retrieve also at present any about panorama
The detection scheme that more camera lens time for exposure synchronize.
Therefore, in panorama camera production field, it is urgent to provide a kind of test panorama camera more camera lens time for exposure sides of synchronization
Case, further, it is urgent to provide a kind of precision that time for exposure Synchronous Detection can be improved, the synchronous inspection of enhancing time for exposure
The scheme of the flexibility of survey technology.
Summary of the invention
The embodiment of the invention provides a kind of more camera lens time for exposure synchronization systems of test panorama camera, for improving exposure
Time synchronization detection technique precision, flexibility.
On the one hand, the embodiment of the present invention provides a kind of more camera lens time for exposure synchronization systems of test panorama camera, the system
Applied to the system of test panorama camera more camera lens time for exposure, the system include: test device, panorama camera and with it is described complete
The identical multiple test mirrors of the number of shots of the time for exposure to be measured of at least two of scape camera, each mirror are used for court
Be imaged to the turntable of the mirror, and, the camera lens of all time for exposure to be measured of the panorama camera with
The multiple mirror corresponds opposite ornaments；The test device includes the turntable of translator, and the center of the turntable is fixed
There is pointer, 360 degree of angle scale, described 360 degree of angle mark is arranged in the periphery of the one side of the fixed pointer of the turntable
The center of ruler and the center of the turntable are concentric；
Control unit controls in the panorama camera when the turntable is rotated according to the desired speed of the motor
The camera lens shooting of the time for exposure to be measured includes being imaged in the mirror corresponding with the camera lens of the time for exposure to be measured
Image data, described image data include the pointer, the turntable and the angle scale, according in described image data
The fan-shaped smear angle of the pointer of shooting determines the time for exposure of the camera lens of the time for exposure to be measured, determines the institute obtained
There is the mean exposure time of the time for exposure of the camera lens of time for exposure to be measured；Determine the camera lens of any time for exposure to be measured
Time for exposure and the mean exposure time difference within a preset range, it is determined that when measuring any exposure
Between time for exposure of camera lens be synchronous.
It optionally, further include determination unit, for the fan-shaped smear according to the pointer shot in described image data
Angle determines the time for exposure of the camera lens of the time for exposure to be measured, and for determining all time for exposure to be measured obtained
The mean exposure time of the time for exposure of camera lens；Determine time for exposure of the camera lens of any time for exposure to be measured with it is described
The difference of mean exposure time is within a preset range, it is determined that when measuring the exposure of the camera lens of any time for exposure
Between be synchronous.
Optionally, described control unit is built in the panorama camera, and the operation that described control unit receives user refers to
After order, the lens module of to be measured time for exposure of the control instruction into the panorama camera is sent, is controlled by the lens module
It includes the survey corresponding with the camera lens of the time for exposure to be measured that the camera lens of the corresponding time for exposure to be measured, which carries out shooting,
It shows on trial the image data being imaged in son.
Optionally, described control unit is placed outside the panorama camera, with the panorama camera telecommunication or by logical
Believe interface connection, after described control unit receives the operational order of user, sends control instruction into the panorama camera
The lens module of time for exposure to be measured is shot by the camera lens that the lens module controls the corresponding time for exposure to be measured
Including the image data being imaged in the test mirror corresponding with the camera lens of the time for exposure to be measured.
Optionally, the motor is the motor shown with rotating cycle；Described image data include the pointer, described
The rotating cycle of turntable and the angle scale and the motor.
Optionally, the determination unit is also used to choose each described to be measured when described image data are video data
The fan-shaped smear angle of the pointer shot in the frame picture of same frame position in the video data of the camera lens shooting of time for exposure
Degree, determines the time for exposure of the camera lens of the time for exposure to be measured.
Optionally, the determination unit is also used to determine the time for exposure of the camera lens of all time for exposure to be measured of acquisition
In, the difference of each time for exposure and the mean exposure time is in the preset range, it is determined that measures the institute
There is the time for exposure of the camera lens of time for exposure to be measured synchronous.
Optionally, the panorama camera includes two or more optical lens.
Optionally, the panorama camera includes four fish eye optical camera lenses, and four fish eye optical camera lenses correspond
Four panels of the panorama camera are distributed in, four fish eye optical camera lenses are in same level, each panel
It is provided with the physics shooting button or touch screen shooting control that the fish eye optical camera lens of the corresponding distribution of control is shot.
Optionally, the determination unit is inside the panorama camera；Or, the determination unit is placed outside the panorama phase
Machine is connect with the panorama camera telecommunication or by communication interface；Or, the determination unit is built in described control unit
Or replaced realizing the function of the determination unit by described control unit.
Optionally, the determination unit was also used to determine in the time for exposure of the camera lens of all time for exposure to be measured of acquisition
Multiple or all time for exposure in, the maximum in all differences of each time for exposure and the mean exposure time
Value, determines the maximum value in target zone, it is determined that described in the time for exposure of the camera lens of all time for exposure to be measured
Multiple or all time for exposure are synchronous.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
The embodiment of the present invention provides a kind of more camera lens time for exposure synchronization systems of test panorama camera, comprising: test device,
Panorama camera and multiple test mirrors identical with the number of shots of at least two time for exposure to be measured of the panorama camera, often
One mirror for the turntable towards the mirror to be imaged, and, the panorama camera it is all it is described to
The camera lens and the multiple mirror for surveying the time for exposure correspond opposite ornaments；The test device includes the turntable of translator,
The center of the turntable is fixed with pointer, and 360 degree of angle scale is arranged in the periphery of the one side of the fixed pointer of the turntable,
The center of 360 degree of the angle scale and the center of the turntable are concentric；Control unit, when the turntable is according to the motor
Desired speed rotation when, control the time for exposure to be measured in the panorama camera camera lens shooting include with it is described to be measured
The image data being imaged in the corresponding mirror of the camera lens of time for exposure, described image data include the pointer, described turn
Disk and the angle scale；It is determined with the fan-shaped smear angle according to the pointer shot in described image data described to be measured
The time for exposure of the camera lens of time for exposure determines the average exposure of the time for exposure of the camera lens of all time for exposure to be measured obtained
Time, the difference of the time for exposure and the mean exposure time that determine the camera lens of any time for exposure to be measured are default
In range, it is determined that it is synchronous for measuring the time for exposure of the camera lens of any time for exposure.The test macro mentions
The time for exposure Synchronization Solution for the more lens modules for having supplied panorama camera field completely new.In addition, the synchronization of the time for exposure
The layout of detection scheme is simple, and flexibility is high, and system is simple, and system building difficulty is small, and it is convenient that maintenance is easy, and replaces to be repaired
Part is easy.In addition, the time for exposure synchronizes the precision of testing result as a result, in the present solution, time for exposure detection technique precision is high
It is high.
Detailed description of the invention
Fig. 1 is a kind of structure for the more camera lens time for exposure synchronization systems of test panorama camera that one embodiment of the invention provides
Figure；
Fig. 2 is test device structure chart provided in an embodiment of the present invention；
Fig. 3 is turntable provided in an embodiment of the present invention and angle scale schematic diagram；
Fig. 4 is that a kind of angle scale provided in an embodiment of the present invention shows precision schematic diagram；
Fig. 5 be another embodiment of the present invention provides a kind of more camera lens time for exposure synchronization systems of test panorama camera in control
The structure chart of unit processed；
Fig. 6 is the fan angle schematic diagram that time for exposure pointer provided in an embodiment of the present invention is strafed；
Fig. 7 be another embodiment of the present invention provides a kind of more camera lens time for exposure synchronous system architectures of test panorama camera
Figure；
Fig. 8 be another embodiment of the present invention provides a kind of more camera lens time for exposure synchronization systems of test panorama camera in really
The structure chart of order member；
Fig. 9 be another embodiment of the present invention provides a kind of more camera lens time for exposure synchronization systems of test panorama camera in really
The structure chart of order member；
Figure 10 be another embodiment of the present invention provides a kind of more camera lens time for exposure synchronization system knots of test panorama camera
Composition.
Specific embodiment
The embodiment of the invention provides a kind of more camera lens time for exposure synchronization systems of test panorama camera, for improving exposure
Time synchronization detection technique precision, flexibility.
As shown in Figure 1, the embodiment of the present invention provides a kind of more camera lens time for exposure synchronization systems of test panorama camera, packet
It includes: test device 1, panorama camera 2 and identical with the number of shots of at least two time for exposure to be measured of the panorama camera 2
Multiple test mirrors 3.In embodiments of the present invention, for testing the camera lens of 4 time for exposure to be measured, therefore, such as Fig. 1 institute
Show, test the more camera lens time for exposure synchronization systems of panorama camera include 4 test mirrors 3, each test mirror 3 be used for pair
It is imaged towards the turntable 11 of the test mirror 3.In embodiments of the present invention, turntable 11 is a part of test device 1.
As shown in Figure 1,4 test mirrors are respectively imaged the turntable 11 towards the test mirror 3, the respectively first imaging
31, the second imaging 32, third imaging 33 and the 4th imaging 34.And as shown in Figure 1, the panorama camera 2 it is all it is described to
The camera lens and the multiple test mirror 3 for surveying the time for exposure correspond opposite ornaments.As depicted in figs. 1 and 2, the test dress
1 turntable 11 including translator 10 is set, the center of the turntable 11 is fixed with pointer 12, the fixed finger of the turntable 11
360 degree of angle scale 13, the center of 360 degree of the angle scale 13 and the turntable 11 is arranged in the periphery of the one side of needle 12
Center it is concentric.
In embodiments of the present invention, turntable 11, angle scale 13 and constant speed motor 10 are installed together, and are placed on panorama camera
On 2 sides.The one face plane mirror of each vertical placement before each lens module of panorama camera 2, namely test mirror 3, by test mirrors
Son 3 is slightly held.The angle of plane mirror before adjusting each lens module and the angle of constant speed motor and orientation, so that panorama phase
Each camera lens of machine 2 completely can clearly photograph turntable 11, pointer 12, angle scale 13 by plane mirror.Fix plane
The orientation of mirror, motor 10 and panorama camera 2.
In the embodiment of the present invention, the test more camera lens time for exposure synchronization systems of panorama camera further include control unit 5, control
Unit 5 is communicated with panorama camera 2, and specifically, control unit 5 is communicated with the lens module of the time for exposure to be measured of panorama camera 2,
Each lens module is corresponding to control at least one camera lens.In embodiments of the present invention, independently one corresponding with each lens module
Illustrate for camera lens.
When the turntable 11 is rotated according to the desired speed of the motor 10, control unit 5 controls the panorama camera 2
In the time for exposure to be measured camera lens shooting include the test mirror 3 corresponding with the camera lens of the time for exposure to be measured
The image data of middle imaging, described image data include the pointer 12, the turntable 11 and the angle scale 13.Rotation
For pointer 12 in the exposure process that panorama camera 2 is shot, motion profile forms a blind sector in the image of shooting,
Referred to as fan-shaped smear.
In embodiments of the present invention, after control unit 5 receives the operational order of user, control instruction is sent to described complete
The lens module of the time for exposure to be measured in scape camera 2 controls the corresponding time for exposure to be measured by lens module
It includes the image data being imaged in the test mirror 3 corresponding with the camera lens of the time for exposure to be measured that camera lens, which carries out shooting,.
Each lens module is built in panorama camera, and the camera lens of lens module is placed outside panorama camera, is used for captured image data.
As shown in figure 3, the turntable 11 that our embodiment provides is circle, pointer 12 is a radius of turntable 11.Pointer
12 for forming blind sector with the rotation of turntable 11 in the exposure process that panorama camera 2 is shot.For the face for improving blind sector
Color depth, round turntable are white-based color, meanwhile, the width of pointer 12 is greater than 1/20 pointer length, and pointer is dark color, excellent
Select black.To improve the precision to blind sector angle measurement, pointer 12 is directed toward the center of circle and the both ends of round edge and needs using isosceles
Triangle.Apex angle by the isosceles triangle of center of circle one end is fallen on the center of circle, and round edge direction is directed toward along pointer 12 in bottom edge；By round edge
The apex angle of isosceles triangle fall on round edge, center of circle direction is directed toward along pointer 12 in bottom edge.Preferably, the bottom of two isosceles triangles
Edge lengths are greater than 3 times of 12 width of pointer.Preferably, isosceles triangle uses equilateral triangle.Turntable 11 is mounted on constant speed electricity
On machine 11.It installs at the center of 11 shaft of center of circle face motor of turntable.
Optionally, turntable 11 is removably connected to the motor 11.
Optionally, angle scale 13 is removably connected to the turntable 11.
Preferably, angle scale 13 selects the disk more slightly larger than turntable 11, and scale label is uniformly in 11 outer edge of turntable
It distributes from inside to outside, and scale is clear enough, after panorama camera shooting, can clearly tell turntable in the image of shooting
The arrow of 11 pointer 12, i.e. scale label value pointed by fan-shaped smear both sides.
Optionally, the test device 1 includes turntable set, and described 360 degree of angle mark is arranged in the periphery of the turntable set
Ruler 13, the turntable 11 is by being arranged the turntable set, with solid in the periphery of the one side of the fixed pointer 12 of the turntable 11
360 degree of the angle scale 13 is set surely.
In the test device, the scale of 360 degree of angle scale 13 is exposed in 11 outer edge surrounding of turntable, and scale
The center of circle of direction will with turntable 11 the center of circle it is concentric.Angle scale 13 will be fixed, and not be able to rotate during the test or movable.
Preferably, angle scale 13 selects the disk more slightly larger than turntable 11.As shown in figure 4, the scale of angle scale 13 is uniformly turning
11 outer edge of disk distributes from inside to outside, and scale is clear enough, can be clear in the image of shooting after shooting so as to panorama camera 2
12 arrow of turnplate pointer is differentiated by Chu, i.e. 13 scale value of angle scale pointed by fan-shaped smear both sides.
In embodiments of the present invention, control unit 5 can be placed outside the outside of panorama camera 2, by telecommunication or have
The wireline interfaces such as line communication connect panorama camera 2, after receiving the operational order of user, to send control instruction to panorama phase
Machine 2, to start the shooting function that the processor inside panorama camera 2 triggers the lens module of time for exposure to be measured, by camera lens mould
It includes corresponding with the camera lens of the time for exposure to be measured that the camera lens that group controls the corresponding time for exposure to be measured, which carries out shooting,
The image data being imaged in the test mirror 3.In other embodiments, as shown in figure 5, control unit 5 can also be built in
In panorama camera 2, after the operational order for receiving user, the to be measured exposure of the control instruction into the panorama camera 2 is sent
Lens module between light time, by the camera lens that lens module controls the corresponding time for exposure to be measured carry out shooting include with it is described
The image data being imaged in the corresponding test mirror 3 of the camera lens of time for exposure to be measured.
In embodiments of the present invention, the fan-shaped smear angle for the pointer 12 that user shoots in obtaining described image data
After degree, the mirror of the time for exposure to be measured is determined according to the fan-shaped smear angle of the pointer 12 shot in described image data
The time for exposure of head determines the mean exposure time of the time for exposure of the camera lens of all time for exposure to be measured obtained, determines and appoints
The time for exposure of the camera lens of meaning (either one or more, to be also possible to own) described time for exposure to be measured and institute
State the difference of mean exposure time within a preset range, it is determined that measure the exposure of the camera lens of any time for exposure
Time is the time for exposure that synchronous user can determine the camera lens of the time for exposure to be measured by manually calculating.Preset range
Value it is smaller, if it is determined that any (either one or more, to be also possible to own) described time for exposure to be measured
Camera lens time for exposure and the mean exposure time difference within a preset range, it is determined that the mirror of the time for exposure to be measured
The synchronous effect of the time for exposure of head is better.In other embodiments, user can also pass through simulation software or software for calculation meter
It calculates the time for exposure for obtaining the camera lens of the time for exposure to be measured, any determining (it is either one or more, it can also
To be all) difference of time for exposure of the camera lens of time for exposure to be measured and the mean exposure time is in preset range
It is interior, it is determined that it is synchronous for measuring the time for exposure of the camera lens of any time for exposure.
As shown in fig. 6, the time for exposure t of single test is by the angular dimension θ of fan-shaped smear and the angular velocity omega meter of turntable
It obtains.Calculation formula is as follows,
T=θ/ω
Wherein, when fan-shaped smear does not span across 0 degree of scale,
WithIn respectively fan-shaped smear, corresponding two scales of fan-shaped both sides arrow,WithWhat is taken
It is directly read wherein in imageFor the larger value,For smaller value.
When fan-shaped smear is across 0 degree of scale,
WithIn respectively fan-shaped smear, corresponding two scales of fan-shaped both sides arrow,WithWhat is taken
It is directly read wherein in imageFor the larger value,For smaller value.
ω=360 ° n
In embodiments of the present invention, n is the revolving speed of turntable, has been set when adjusting motor speed, can be in electricity
It is directly read in the set interface of machine revolving speed.
In embodiments of the present invention, the time for exposure t of single test is calculated by test record data as follows.
Single shot is easy to be influenced by environment and the disturbing factor of operation, can by the way that the test exposure time is repeated several times,
The average value of multiple test exposure time is calculated, to reach influence of the disturbing factor for reducing environment and operation to test result.
Optionally, in the time for exposure that can determine the camera lens of all time for exposure to be measured of acquisition, each exposure
The difference of time and the mean exposure time is in the preset range, it is determined that measures all time for exposure to be measured
The time for exposure of camera lens is synchronous.
Optionally, in another embodiment, as shown in fig. 7, when being exposed based on the more camera lenses of test panorama camera shown in FIG. 1
Between synchronization system, further include determination unit 6, determination unit 6 is communicated with panorama camera 2.The determination unit 6 is according to the figure
As the fan-shaped smear angle of the pointer 12 shot in data determines the time for exposure of the camera lens of the time for exposure to be measured.
In embodiments of the present invention, the more camera lens time for exposure synchronization systems of test panorama camera shown in FIG. 1 are based on, are such as schemed
Shown in 8, determination unit 6 can be built in panorama camera 2, the database directly shot from lens module or panorama camera 2
Middle acquisition described image data, according to the determination of the fan-shaped smear angle of the pointer 12 shot in described image data
The time for exposure of the camera lens of time for exposure to be measured determines being averaged for the time for exposure of the camera lens of all time for exposure to be measured obtained
Time for exposure determines that the time for exposure of camera lens of any time for exposure to be measured exists with the difference of the mean exposure time
In preset range, it is determined that it is synchronous for measuring the time for exposure of the camera lens of any time for exposure.Optionally, really
Order member 6, be also used to determine acquisition all time for exposure to be measured camera lens time for exposure in, each time for exposure with
The difference of the mean exposure time is in the preset range, it is determined that measures the camera lens of all time for exposure to be measured
Time for exposure is synchronous.
In other embodiments, the more camera lens time for exposure synchronization systems of test panorama camera shown in FIG. 1, such as Fig. 9 are based on
Shown, determination unit 6 can be built in control unit 5.When control unit 5 is at the inside of panorama camera 2, it is equivalent to determination
Unit 6 is built in panorama camera 2, then directly can obtain institute from the database that lens module or panorama camera 2 are shot
Image data is stated, to determine the exposure to be measured according to the fan-shaped smear angle of the pointer 12 shot in described image data
The time for exposure of the camera lens of time, when determining the average exposure of the time for exposure of the camera lens of all time for exposure to be measured obtained
Between, the difference of the time for exposure and the mean exposure time that determine the camera lens of any time for exposure to be measured are in default model
In enclosing, it is determined that it is synchronous for measuring the time for exposure of the camera lens of any time for exposure.Can also, the determination
Unit 6 obtains described image data from the database that lens module or panorama camera 2 are shot by control unit 5, with root
The exposure of the camera lens of the time for exposure to be measured is determined according to the fan-shaped smear angle of the pointer 12 shot in described image data
Between light time, the mean exposure time of the time for exposure of the camera lens of all time for exposure to be measured obtained is determined, determine any institute
The difference of the time for exposure and the mean exposure time of stating the camera lens of time for exposure to be measured are within a preset range, it is determined that measure
The time for exposure of the camera lens of any time for exposure is synchronous.When control unit 5 is at 2 outside of panorama camera,
Determination unit 6 can obtain described image number from the database that lens module or panorama camera 2 are shot by control unit 5
According to determining the mirror of the time for exposure to be measured with the fan-shaped smear angle according to the pointer 12 shot in described image data
The time for exposure of head determines the mean exposure time of the time for exposure of the camera lens of all time for exposure to be measured obtained, determines and appoints
Anticipate time for exposure to be measured camera lens time for exposure and the mean exposure time difference within a preset range, then really
Surely it is synchronous for measuring the time for exposure of the camera lens of any time for exposure.When control unit 5 is outside panorama camera 2
When portion, determination unit 6 can also independently be separated with control unit 5, the outside of panorama camera 2 is respectively in the layout of, with panorama camera 2
It is connected by wireline interfaces such as telecommunication or wire communications.In other embodiments, it can replace determining by control unit 5
The function of the realization determination unit of unit 6, that is, replace determination unit 6 to realize " according in described image data by control unit 5
The fan-shaped smear angle of the pointer of shooting determines the time for exposure of the camera lens of the time for exposure to be measured, determines the institute obtained
There is the mean exposure time of the time for exposure of the camera lens of time for exposure to be measured, determines the camera lens of any time for exposure to be measured
Time for exposure and the mean exposure time difference within a preset range, it is determined that when measuring any exposure
Between time for exposure of camera lens be synchronous " function.
Optionally, as shown in Figure 10, the more camera lens time for exposure synchronization systems of test panorama camera shown in FIG. 1, institute are based on
Stating motor 10 is the motor 10 shown with rotating cycle；Described image data include the pointer 12, the turntable 11 and institute
State the rotating cycle of angle scale 13 and the motor 10.
In the present solution, due to using the turntable with angle index and pointer, and using the electricity with circle number display function
Machine, while the mode being imaged using mirror realize the consistency of each lens module test environment, will be from reference object
Difference is near minimum.
Optionally, the determination unit 6 is also used to when described image data are video data, choose it is each described to
The sector for surveying the pointer 12 shot in the frame picture of same frame position in the video data of the camera lens shooting of time for exposure is dragged
Shadow angle determines the time for exposure of the camera lens of the time for exposure to be measured.
When test, the angle of the plane mirror before adjusting each lens module and the angle of constant speed motor and orientation, so that entirely
Each camera lens of scape camera 2 completely can clearly photograph turntable 11, pointer 12, angle scale 13 by plane mirror.It fixes
The orientation of plane mirror, the rotating cycle of motor 10 and motor 10 and panorama camera 2.Then the revolving speed of motor 10 is adjusted, so that
In the image that each lens module of panorama camera 2 takes, the fan-shaped smear angle of 11 pointer 12 of turntable is both less than 360 degree.For
The precision of test result is improved, the angle of fan-shaped smear is being greater than 180 degree, and is preferred less than 360.
After mixing up 10 revolving speed of motor, an image is shot with panorama camera 2, or record one section of small video, in each mirror
In the video that head is recorded, a frame image is respectively taken out in identical position and is come out, such as all takes the 200th frame.Then record is every
The rotating cycle value for the motor 10 that a lens module photographed, the initial position of the fan-shaped smear of 11 pointer 12 of turntable and stop bits
It sets, the time for exposure difference in length of the frame of the mould group to be measured of panorama camera 2 can be calculated.
In the image that one lens module takes, the initial position of the fan-shaped smear of pointer 12 and the signified of terminal position are carved
Angle value is respectivelyWithCorresponding motor display circle number is N1And N2(since fan angle is less than 360 degree, N1And N2It is equal or
1) person differs only by, the tachometer value of turntable is n.
It is calculated by above data, in addition the circle number that motor circle number, i.e. turntable turn over, the initial position of pointer sector smear
With the signified scale of terminal positionWithCorresponding turntable from start to proceed to be taken the moment when the practical angle turned over
Ψ1And Ψ2It is respectively as follows:
The angular dimension θ of fan-shaped smear are as follows:
θ=Ψ2-Ψ1
The angular velocity omega of turntable are as follows:
ω=360 ° n
Time for exposure teAre as follows:
Using test record data, the time for exposure t of this mould group is calculatedeAre as follows:
The time for exposure of K camera lens of panorama camera is recorded as t respectivelye1、te2、te3、……、teK, then turn taken is corresponded to
Coil number and start angle are respectively
WithThe time for exposure calculation formula of each lens module are as follows:
……
Mean exposure timeCalculation formula are as follows:
The then time for exposure deviation delta t of each lens modulee1、Δte2、Δte3、……、ΔteKAre as follows:
……
In the present embodiment, determination unit 6 can be to the time for exposure t of K camera lens of panorama camerae1、te2、te3、……、
teKIn any a time for exposure and mean exposure timeDifference be compared with preset range, if described any
The time for exposure and mean exposure timeDifference in the preset range, it is determined that measure any exposure
The time for exposure of camera lens between light time is synchronous.
In other embodiments, determination unit 6 can be to the time for exposure t of K camera lens of panorama camerae1、te2、
te3、……、teKIn multiple time for exposure in, each time for exposure and mean exposure time in the multiple time for exposureDifference be compared respectively with preset range, if each time for exposure and average exposure in the multiple time for exposure
TimeDifference in the preset range, it is determined that the time for exposure for measuring the camera lens of the multiple time for exposure is
Synchronous.
In other embodiments, determination unit 6 can be to the time for exposure t of K camera lens of panorama camerae1、te2、
te3、……、teKIn all time for exposure in, each time for exposure and mean exposure time in all time for exposure's
Difference is compared with preset range respectively, if each time for exposure and mean exposure time in all time for exposure's
Difference is in the preset range, it is determined that it is synchronous for measuring the time for exposure of the camera lens of all time for exposure.
In other embodiments, determination unit 6 can be according to the time for exposure t of K camera lens of panorama camerae1、te2、
te3、……、teKIn multiple or all time for exposure in, the institute of each time for exposure and the mean exposure time
There is the maximum value Δ t in differenceemax, determine the maximum value in target zone, it is determined that the mirror of all time for exposure to be measured
The multiple or all time for exposure in the time for exposure of head is synchronous.The target zone can be the default model
It encloses.In the present solution, using time for exposure deviation delta te1、Δte2、Δte3、……、ΔteKThe maximum value, Δ of large deviations value
temaxTo assess the quality that the time for exposure synchronizes.As Δ temaxIt is smaller, then illustrate that the time for exposure synchronizes and is made better；Conversely, working as Δ
temaxIt is bigger, then illustrate that the time for exposure synchronizes and is made poorer.
In above scheme, in such a way that turntable 11 is imaged in camera plane mirror, solves and existing be unable to test panorama
The problem of camera more lens module time for exposure synchronism detections.
Optionally, the panorama camera 2 includes two or more optical lens.
Optionally, the panorama camera 2 includes four fish eye optical camera lenses, and four fish eye optical camera lenses correspond
Four panels of the panorama camera 2 are distributed in, four fish eye optical camera lenses are in same level, each panel
It is provided with the physics shooting button or touch screen shooting control that the fish eye optical camera lens of the corresponding distribution of control is shot.
Optionally, the test device further includes turntable set, and described 360 degree of angle mark is arranged in the periphery of the turntable set
Ruler 13, the turntable 11 is by being arranged the turntable set, with solid in the periphery of the one side of the fixed pointer 12 of the turntable 11
360 degree of the angle scale 13 is set surely.
Optionally, the test device further includes angle scale fixing piece, and 360 degree of the angle scale 13 passes through described
Angle scale fixing piece is fixedly connected on the periphery of the one side of the fixed pointer 12 of the turntable 11.
Optionally, the motor 10 is constant revolution motor 10, and the shaft correspondence of the motor 10 is installed on the turntable
11 center.
Optionally, the turntable 11 be arranged the pointer 12 with the pointer 12 backwards to the turntable 11 while
Color difference be greater than preset value.
Optionally, it is isosceles triangle that the pointer 12, which is directed toward one end of 11 periphery of turntable, and the pointer 12 is directed toward
The apex angle of the isosceles triangle of one end of 11 periphery of turntable is fallen on the periphery of the turntable 11.
Optionally, the one end at the pointer 12 towards the center of the turntable 11 is isosceles triangle, 12 court of pointer
It is fallen in the apex angle of the isosceles triangle of the one end at the center of the turntable 11 on the center of the turntable 11.
Optionally, the diameter of the turntable 11 is greater than 10cm.
Optionally, the diameter of the angle scale 13 is greater than 10cm.
Optionally, the turntable 11 is round turntable, and 12 length of pointer is the radius of the round turntable.
Optionally, the one side of the pointer 12 is arranged as white in the turntable 11, and the pointer 12 is backwards to the turntable 11
One side be black.
Optionally, the bottom edge length of all isosceles triangles is greater than or equal to 3 times of the pointer width.
Optionally, all isosceles triangles are equilateral triangle.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
The embodiment of the present invention provides a kind of more camera lens time for exposure synchronization systems of test panorama camera, comprising: test device
1, panorama camera 2 and multiple test mirrors identical with the number of shots of at least two time for exposure to be measured of the panorama camera 2
Son 33, each test mirror 3 are used to be imaged to towards the turntable 11 of the test mirror 3, and, it is described complete
The camera lens and the multiple test mirror 3 of all time for exposure to be measured of scape camera 2 corresponds opposite ornaments；The survey
1 turntable 11 including translator 10 is set in trial assembly, and the center of the turntable 11 is fixed with pointer 12, the fixed finger of the turntable 11
360 degree of angle scale 13, the center of 360 degree of the angle scale 13 and the turntable 11 is arranged in the periphery of the one side of needle 12
Center it is concentric；Control unit 5 controls the panorama when the turntable 11 is rotated according to the desired speed of the motor 10
The camera lens shooting of the time for exposure to be measured in camera 2 includes the test corresponding with the camera lens of the time for exposure to be measured
The image data being imaged in mirror 3, described image data include the pointer 12, the turntable 11 and the angle scale 13；
The camera lens of the time for exposure to be measured is determined with the fan-shaped smear angle according to the pointer 12 shot in described image data
Time for exposure, determine the mean exposure time of the time for exposure of the camera lens of all time for exposure to be measured obtained, determine any
The difference of time for exposure of the camera lens of a time for exposure to be measured and the mean exposure time is within a preset range, it is determined that
It is synchronous for measuring the time for exposure of the camera lens of any time for exposure.The test macro provides panorama camera neck
The time for exposure Synchronization Solution of the completely new more lens modules in domain.In addition, the layout of the Synchronization Solution of the time for exposure
Simply, flexibility is high, and system is simple, and system building difficulty is small, and it is convenient that maintenance is easy, and replaces part to be repaired and is easy.In addition,
In the present solution, time for exposure detection technique precision is high, the precision of time for exposure synchronous testing result is high as a result,.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.
The computer program product includes one or more computer instructions.Load and execute on computers the meter
When calculation machine program instruction, entirely or partly generate according to process or function described in the embodiment of the present invention.The computer can
To be general purpose computer, special purpose computer, computer network or other programmable devices.The computer instruction can be deposited
Storage in a computer-readable storage medium, or from a computer readable storage medium to another computer readable storage medium
Transmission, for example, the computer instruction can pass through wired (example from a web-site, computer, server or data center
Such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave) mode to another website
Website, computer, server or data center are transmitted.The computer readable storage medium can be computer and can deposit
Any usable medium of storage either includes that the data storages such as one or more usable mediums integrated server, data center are set
It is standby.The usable medium can be magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or partly lead
Body medium (such as solid state hard disk Solid State Disk (SSD)) etc..
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can be with reference to the corresponding process in aforementioned system embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and system can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of system described in each embodiment of the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (11)
1. a kind of more camera lens time for exposure synchronization systems of test panorama camera characterized by comprising test device, panorama phase
Machine and multiple test mirrors identical with the number of shots of at least two time for exposure to be measured of the panorama camera, it is each described
Mirror is used to that the turntable towards the mirror to be imaged, and, all exposures to be measured of the panorama camera
The camera lens of time and the multiple mirror correspond opposite ornaments；The test device includes the turntable of translator, and described turn
The center of disk is fixed with pointer, and 360 degree of angle scale is arranged in the periphery of the one side of the fixed pointer of the turntable, described
The center of 360 degree of angle scale and the center of the turntable are concentric；
Control unit controls described in the panorama camera when the turntable is rotated according to the desired speed of the motor
The camera lens shooting of time for exposure to be measured includes the image being imaged in the mirror corresponding with the camera lens of the time for exposure to be measured
Data, described image data include the pointer, the turntable and the angle scale, to shoot according in described image data
The pointer fan-shaped smear angle determine the time for exposure to be measured camera lens time for exposure, determine obtain is needed
The mean exposure time of the time for exposure of the camera lens of time for exposure is surveyed, determines the exposure of the camera lens of any time for exposure to be measured
Between light time within a preset range with the difference of the mean exposure time, it is determined that measure any time for exposure
The time for exposure of camera lens is synchronous.
2. the system as claimed in claim 1, which is characterized in that further include determination unit, for according in described image data
The fan-shaped smear angle of the pointer of shooting determines the time for exposure of the camera lens of the time for exposure to be measured, and for determining
The mean exposure time of the time for exposure of the camera lens of all time for exposure to be measured obtained；When determining any exposure to be measured
Between camera lens time for exposure and the mean exposure time difference within a preset range, it is determined that measure any institute
It is synchronous for stating the time for exposure of the camera lens of time for exposure.
3. system as claimed in claim 1 or 2, which is characterized in that described control unit is built in the panorama camera, described
After control unit receives the operational order of user, the mirror of to be measured time for exposure of the control instruction into the panorama camera is sent
Head mould group, carrying out shooting by the camera lens that the lens module controls the corresponding time for exposure to be measured includes and the exposure to be measured
The image data being imaged in the corresponding test mirror of camera lens between light time.
4. system as claimed in claim 1 or 2, which is characterized in that described control unit is placed outside the panorama camera, with institute
It states panorama camera telecommunication or is connected by communication interface, after described control unit receives the operational order of user, sent
The lens module of to be measured time for exposure of the control instruction into the panorama camera, it is corresponding described by lens module control
The camera lens of time for exposure to be measured carry out shooting include in the test mirror corresponding with the camera lens of the time for exposure to be measured at
The image data of picture.
5. system as claimed in claim 1 or 2, which is characterized in that the motor is the motor shown with rotating cycle；Institute
State the rotating cycle that image data includes the pointer, the turntable and the angle scale and the motor.
6. system as claimed in claim 2, which is characterized in that the determination unit is also used in described image data be view
Frequency according to when, choose in the video data of the camera lens shooting of each time for exposure to be measured and clapped in the frame picture of same frame position
The fan-shaped smear angle for the pointer taken the photograph, determines the time for exposure of the camera lens of the time for exposure to be measured.
7. the system as described in claim 2 or 6, which is characterized in that
The determination unit, it is each described in the time for exposure for being also used to determine the camera lens of all time for exposure to be measured of acquisition
The difference of time for exposure and the mean exposure time is in the preset range, it is determined that when measuring all exposures to be measured
Between camera lens time for exposure it is synchronous.
8. system as claimed in claim 1 or 2, which is characterized in that the panorama camera includes two or more light
Learn camera lens.
9. system as claimed in claim 1 or 2, which is characterized in that the panorama camera includes four fish eye optical camera lenses, institute
It states four fish eye optical camera lenses and corresponds four panels for being distributed in the panorama camera, at four fish eye optical camera lenses
In same level, the physics that the fish eye optical camera lens that each panel is provided with the corresponding distribution of control is shot is clapped
Take the photograph key or touch screen shooting control.
10. system as claimed in claim 2, which is characterized in that the determination unit is inside the panorama camera；Or, institute
It states determination unit and is placed outside the panorama camera, connect with the panorama camera telecommunication or by communication interface；Or, described
Determination unit is built in described control unit or is replaced realizing the function of the determination unit by described control unit.
11. system as claimed in claim 2, which is characterized in that the determination unit is also used to determine all to be measured of acquisition
In multiple or all time for exposure in the time for exposure of the camera lens of time for exposure, each time for exposure with it is described average
Maximum value in all differences of time for exposure determines the maximum value in target zone, it is determined that when all exposures to be measured
Between camera lens time for exposure in the multiple or all time for exposure be synchronous.
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