CN110519483A - A kind of more camera lens frame synchronization systems of test panorama camera - Google Patents
A kind of more camera lens frame synchronization systems of test panorama camera Download PDFInfo
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- CN110519483A CN110519483A CN201910810356.4A CN201910810356A CN110519483A CN 110519483 A CN110519483 A CN 110519483A CN 201910810356 A CN201910810356 A CN 201910810356A CN 110519483 A CN110519483 A CN 110519483A
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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
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
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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
Abstract
The embodiment of the present invention provides a kind of more camera lens frame synchronization systems of test panorama camera, it include: 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 panorama camera, test device includes the turntable of translator, control unit, control the camera lens captured image data of the time for exposure to be measured in panorama camera, the starting time for exposure of the camera lens of time for exposure to be measured is determined according to the fan-shaped smear of the pointer shot in image data, determine the mean exposure time Startup time of the starting time for exposure of the camera lens of all time for exposure to be measured obtained, the difference of the starting time for exposure and mean exposure time Startup time that determine the camera lens of any time for exposure to be measured are within a preset range, then determine that it is synchronous for measuring the frame of the camera lens of any time for exposure to be measured.The system provides the Frame Synchronization Test scheme 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, easy-maintaining.
Description
Technical field
The present invention relates to field of photography more particularly to a kind of more camera lens frame 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 frame
It is synchronous.Currently, pan-shot field belongs to emerging field, for the volume production of panorama camera, mass is needed to test, and by mesh
The preceding measurement scheme for not occurring also whether synchronizing the time for exposure of panorama camera a plurality of lenses.
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.
Therefore, in panorama camera production field, it is urgent to provide a kind of more camera lens frame synchronization schemes of test panorama camera, and
It is urgent to provide a kind of schemes of the flexibility of precision that Frame Synchronization Test technology can be improved, enhancement frame Synchronous Detection.
Summary of the invention
The embodiment of the invention provides a kind of more camera lens frame synchronization systems of test panorama camera, for improving Frame Synchronization Test
Technology acuracy, flexibility.
On the one hand, the embodiment of the present invention provides a kind of test panorama camera more camera lens frame synchronization system to preset range preset range
System, comprising: test device, panorama camera and identical as the number of shots of at least two time for exposure to be measured of the panorama camera
Multiple test mirrors, the test device includes the turntable of translator, and the center of the turntable is fixed with pointer, the turntable
The periphery of the one side of the fixed pointer is arranged 360 degree of angle scale, the center of 360 degree of the angle scale and described turn
The center of disk is 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 of the pointer of shooting determines the starting 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 Startup time of the starting time for exposure of the camera lens of time for exposure to be measured, determines any exposure to be measured
The difference of starting time for exposure of camera lens between light time and the mean exposure time Startup time is within a preset range, it is determined that
It is synchronous for measuring the frame of the camera lens of any time for exposure to be measured.
It optionally, further include determination unit, for the fan-shaped smear according to the pointer shot in described image data
It determines the starting time for exposure of the camera lens of the time for exposure to be measured, determines rising for the camera lens of all time for exposure to be measured obtained
The mean exposure time Startup time of time for exposure beginning, when determining the starting exposure of the camera lens of any time for exposure to be measured
Between with the difference of the mean exposure time Startup time within a preset range, it is determined that measure any exposure to be measured
The frame of camera lens between light time is 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 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, really
The starting time for exposure of the camera lens of the fixed time for exposure to be measured.
Optionally, the determination unit is also used to determine the starting exposure of the camera lens of all time for exposure to be measured of acquisition
In time, it is each it is described starting the time for exposure and the mean exposure time Startup time difference in the preset range,
Then determine that it is synchronous for measuring the frame of the camera lens of all time for exposure to be measured.
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, when the determination unit is also used to determine the starting exposure of the camera lens of all time for exposure to be measured of acquisition
Between in multiple or all starting time for exposure in, when each starting time for exposure and the mean exposure time start
The maximum value in all differences carved, determines the maximum value in target zone, it is determined that the mirror of all time for exposure to be measured
The camera lens or the camera lens of all time for exposure to be measured of the multiple time for exposure to be measured in the starting time for exposure of head is frame
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 frame synchronization systems of test panorama camera, 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, the test
Device includes the turntable of translator, and the center of the turntable is fixed with pointer, and the turntable fixes the outer of the one side of the pointer
360 degree of angle scale is arranged in week, and the center of 360 degree of the angle scale and the center of the turntable are concentric；Control unit,
When the turntable is rotated according to the desired speed of the motor, the time for exposure to be measured in the panorama camera is controlled
Camera lens shooting includes the image data being imaged in the mirror corresponding with the camera lens of the time for exposure to be measured, described image number
According to including the pointer, the turntable and the angle scale；According to the fan of the pointer shot in described image data
Shape smear determines the starting time for exposure of the camera lens of the time for exposure to be measured, determines the mirror of all time for exposure to be measured obtained
The mean exposure time Startup time of the starting time for exposure of head determines the starting of the camera lens of any time for exposure to be measured
The difference of time for exposure and the mean exposure time Startup time is within a preset range, it is determined that measures described in described any
The frame of the camera lens of time for exposure to be measured is synchronous.The test macro provides the completely new more lens modules in panorama camera field
Frame Synchronization Test scheme.In addition, the layout of the Frame Synchronization Test scheme of more lens modules is simple, flexibility is high, and system is simple,
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 skill
Art precision is high, and the precision of Frame Synchronization Test result is high as a result,.
Detailed description of the invention
Fig. 1 is a kind of structure for the more camera lens Frame Synchronization Test 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 Frame Synchronization Test systems of test panorama camera in control
The structure chart of unit；
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 Frame Synchronization Test system structures of test panorama camera
Figure；
Fig. 8 be another embodiment of the present invention provides a kind of more camera lens Frame Synchronization Test systems of test panorama camera in determine
The structure chart of unit；
Fig. 9 be another embodiment of the present invention provides a kind of more camera lens Frame Synchronization Test systems of test panorama camera in determine
The structure chart of unit；
Figure 10 be another embodiment of the present invention provides a kind of more camera lens Frame Synchronization Test system structures of test panorama camera
Figure.
Specific embodiment
It is same for improving more camera lens frames the embodiment of the invention provides a kind of more camera lens frame synchronization systems of test panorama camera
Walk detection technique precision, flexibility.
As shown in Figure 1, the embodiment of the present invention provides a kind of more camera lens frame synchronization systems of test panorama camera, comprising: test
Device 1, panorama camera 2 and multiple surveys identical with the number of shots of at least two time for exposure to be measured of the panorama camera 2
Show on trial son 3.In embodiments of the present invention, for testing the camera lens of 4 time for exposure to be measured, therefore, as shown in Figure 1, test
The more camera lens frame synchronization systems of panorama camera include 4 test mirrors 3, and each test mirror 3 is for towards the test
The turntable 11 of mirror 3 is imaged.In embodiments of the present invention, turntable 11 is a part of test device 1.As shown in Figure 1,4
A test mirror is respectively imaged the turntable 11 towards the test mirror 3, respectively first the 31, second imaging of imaging
32, third imaging 33 and the 4th imaging 34.And as shown in Figure 1, the panorama camera 2 all time for exposure to be measured
Camera lens and the multiple test mirror 3 correspond opposite ornaments.As depicted in figs. 1 and 2, the test device 1 includes band
The turntable 11 of motor 10, the center of the turntable 11 are fixed with pointer 12, and the turntable 11 fixes the one of the pointer 12
360 degree of angle scale 13 is arranged in the periphery in face, and the center of 360 degree of the angle scale 13 and the center of the turntable 11 are same
The heart.
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 frame synchronization systems of panorama camera further include control unit 5, control unit 5
It is communicated with panorama camera 2, 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, a camera lens is corresponded to independently with each lens module
For illustrate.
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, rising for the camera lens of the time for exposure to be measured is determined according to the fan-shaped smear of the pointer shot in described image data
Begin the time for exposure, when determining the mean exposure time starting of the starting time for exposure of the camera lens of all time for exposure to be measured obtained
At quarter, determine the camera lens of any time for exposure to be measured originates time for exposure and the mean exposure time Startup time
Difference is within a preset range, it is determined that it is synchronous for measuring the frame of the camera lens of any time for exposure to be measured.
The smear signal of the time for exposure of single test as shown in Figure 6,WithIn respectively fan-shaped smear, sector two
Corresponding two scales of side arrow,WithIt is directly read wherein in the image takenFor the larger value,It is smaller
Value.
In embodiments of the present invention, frame Startup time, i.e. starting time for exposure (also known as exposure Startup time) tsAre as follows:
I.e.
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, N1 is the rotating cycle of the motor.
Single shot is easy to be influenced by environment and the disturbing factor of operation, can be by the way that the test exposure time is repeated several times
The time for exposure is originated, being averaged for the starting time for exposure of the multiple test exposure time of the camera lens of the time for exposure to be measured is calculated
Value, to reach influence of the disturbing factor for reducing environment and operation to test result.It is then possible to according in described image data
The fan-shaped smear of the pointer of shooting determines the average value of the starting time for exposure of the camera lens of the time for exposure to be measured, determines
In the average value of the starting time for exposure of the camera lens of all time for exposure to be measured obtained, per the starting time for exposure two-by-two
Maximum value in average value difference；Determine the maximum value within a preset range, it is determined that when measuring all exposures to be measured
Between camera lens frame synchronization.
Optionally, in another embodiment, as shown in fig. 7, being based on the more camera lens frame synchronization of test panorama camera shown in FIG. 1
System, further includes determination unit 6, and determination unit 6 is communicated with panorama camera 2.The determination unit 6 is according to described image data
The fan-shaped smear angle of the pointer 12 of middle shooting determines rising for the starting time for exposure of the camera lens of the time for exposure to be measured
Begin the time for exposure.
In embodiments of the present invention, the more camera lens frame synchronization systems of test panorama camera shown in FIG. 1 are based on, as shown in figure 8,
Determination unit 6 can be built in panorama camera 2, directly be obtained from the database that lens module or panorama camera 2 are shot
Described image data, to determine the exposure to be measured according to the fan-shaped smear angle of the pointer 12 shot in described image data
The starting time for exposure of camera lens between light time, according to the determination of the fan-shaped smear of the pointer shot in described image data
The starting time for exposure of the camera lens of time for exposure to be measured, when determining the starting exposure of the camera lens of all time for exposure to be measured obtained
Between mean exposure time Startup time, determine starting 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 Startup time is within a preset range, it is determined that measures any time for exposure to be measured
The frame of camera lens is synchronous.
In other embodiments, the more camera lens frame synchronization systems of test panorama camera shown in FIG. 1 are based on, as shown in figure 9, really
Order member 6 can be built in control unit 5.When control unit 5 is at the inside of panorama camera 2, it is equivalent in determination unit 6
It is placed in panorama camera 2, then directly can obtain described image number from the database that lens module or panorama camera 2 are shot
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 starting time for exposure of head.Can also, the determination unit 6 is shot by control unit 5 from lens module or panorama camera 2
Database in obtain described image data.When control unit 5 is at 2 outside of panorama camera, determination unit 6 can pass through control
Unit 5 obtains described image data from the database that lens module or panorama camera 2 are shot, according to described image data
The fan-shaped smear angle of the pointer 12 of middle shooting determines the starting time for exposure of the camera lens of the time for exposure to be measured.Work as control
At 2 outside of panorama camera, determination unit 6 can also independently separate unit 5 processed with control unit 5, respectively be in the layout of panorama phase
The outside of machine 2 is connect with panorama camera 2 by wireline interfaces such as telecommunications or wire communication.It in other embodiments, can be with
Determination unit 6 is replaced to realize the function of determination unit by control unit 5, for example, replacing determination unit 6 by control unit 5
Realization " determines the camera lens of the time for exposure to be measured according to the fan-shaped smear angle of the pointer shot in described image data
The starting time for exposure " function, or it is more multi-functional.
Optionally, as shown in Figure 10, the more camera lens frame synchronization systems of test panorama camera shown in FIG. 1, the motor are based on
10 be the motor 10 shown with rotating cycle；Described image data include the pointer 12, the turntable 11 and the angle
The rotating cycle of 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, at the same using the mode of test mirror imaging, the consistency of each lens module test environment is realized, it will be from shooting pair
The difference of elephant 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 starting 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 initial position of the rotating cycle value of the motor 10 that a lens module photographed, the fan-shaped smear of 11 pointer 12 of turntable, determine described in
The starting time for exposure of the camera lens of time for exposure to be measured, when can calculate the starting exposure of the frame of the mould group to be measured of panorama camera 2
Between difference.
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 start bit of pointer sector smear
It sets, the exposure Startup time of K camera lens of panorama camera is recorded as t respectivelys1、ts2、ts3、……、tsK, the exposure of each lens module
Photopolymerization initiation moment calculation formula are as follows:
……
Mean exposure time Startup timeCalculation formula are as follows:
The then exposure Startup time deviation delta t of each lens modules1、Δts2、Δts3、......、ΔtsKAre as follows:
……
In the present embodiment, determination unit 6 can starting time for exposure t to K camera lens of panorama cameras1、ts2、
ts3、……、tsKIn any (can be 1, two, multiple or all) described time for exposure to be measured camera lens starting
The difference of time for exposure and the mean exposure time Startup time is within a preset range, it is determined that measures described in described any
The frame of the camera lens of time for exposure to be measured is synchronous.For example, determination unit, is also used to determine all time for exposure to be measured of acquisition
Camera lens the starting time for exposure in, each starting time for exposure and the difference of the mean exposure time Startup time exist
In the preset range, it is determined that it is synchronous for measuring the frame of the camera lens of all time for exposure to be measured.I.e., it is possible to panorama
The starting time for exposure t of K camera lens of cameras1、ts2、ts3、……、tsKIn each starting time for exposure and the average exposure
The difference of Startup time is in the preset range between light time, it is determined that measures the frame of the camera lens of all time for exposure to be measured
It is synchronous.
Optionally, when the determination unit is also used to determine the starting exposure of the camera lens of all time for exposure to be measured of acquisition
Between in multiple or all starting time for exposure in, when each starting time for exposure and the mean exposure time start
The maximum value in all differences carved, determines the maximum value in target zone, it is determined that the mirror of all time for exposure to be measured
The camera lens or the camera lens of all time for exposure to be measured of the multiple time for exposure to be measured in the starting time for exposure of head is frame
Synchronous.
For example, using exposure Startup time deviation delta ts1、Δts2、Δts3、……、ΔtsKMiddle difference (deviation) is maximum
Value, Δ tsmaxTo assess the quality of frame synchronization.As Δ tsmaxIt is smaller, then illustrate that frame synchronization is made better；Conversely, working as Δ tsmax
It is bigger, then illustrate that frame synchronization 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 more lens module frame synchronization of camera are tested.
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 frame synchronization systems of test panorama camera, comprising: test device 1, panorama
Camera 2 and multiple test mirrors 33 identical with the number of shots of at least two time for exposure to be measured of the panorama camera 2, often
The one test mirror 3 is used to be imaged to towards the turntable 11 of the test mirror 3, and, the panorama camera 2
All time for exposure to be measured camera lens and the multiple test mirror 3 correspond opposite ornaments；The test device 1
Turntable 11 including translator 10, the center of the turntable 11 are fixed with pointer 12, the fixed pointer 12 of the turntable 11
360 degree of angle scale 13, the center at the center of 360 degree of the angle scale 13 and the turntable 11 is arranged in periphery on one side
With one heart；Control unit 5 controls in the panorama camera 2 when the turntable 11 is rotated according to the desired speed of the motor 10
The time for exposure to be measured camera lens shooting include in the test mirror 3 corresponding with the camera lens of the time for exposure to be measured
The image data of imaging, described image data include the pointer 12, the turntable 11 and the angle scale 13；According to described
The fan-shaped smear of the pointer shot in image data determines the starting time for exposure of the camera lens of the time for exposure to be measured, really
Surely the mean exposure time Startup time of the starting time for exposure of the camera lens of all time for exposure to be measured obtained determines any
The starting time for exposure of the camera lens of the time for exposure to be measured and the difference of the mean exposure time Startup time are in default model
In enclosing, it is determined that it is synchronous for measuring the frame of the camera lens of any time for exposure to be measured.The test macro provides
The Frame Synchronization Test scheme of the completely new more lens modules in panorama camera field.In addition, the Synchronization Solution of the time for exposure
Layout 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 part to be repaired and is easy.
In addition, the precision of Frame Synchronization Test result is high as a result, in the present solution, time for exposure detection technique precision is high.
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 frame synchronization systems of test panorama camera, which is characterized in that system includes: test device, panorama camera
Multiple test mirrors identical with the number of shots of at least two of panorama camera time for exposure to be measured, the test dress
The turntable including translator is set, the center of the turntable is fixed with pointer, the periphery of the one side of the fixed pointer of the turntable
360 degree of angle scale is set, and the center of 360 degree of the 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 be shot according in described image data
The pointer fan-shaped smear determine the time for exposure to be measured camera lens the starting time for exposure, determine obtain is needed
The mean exposure time Startup time for surveying the starting time for exposure of the camera lens of time for exposure, when determining any exposure to be measured
Between camera lens starting the time for exposure and the mean exposure time Startup time difference within a preset range, it is determined that measure
The frame of the camera lens of any time for exposure to be measured is synchronous.
2. the system as claimed in claim 1 further includes determination unit, for according to the finger shot in described image data
The fan-shaped smear of needle determines the starting time for exposure of the camera lens of the time for exposure to be measured, when determining all exposures to be measured obtained
Between camera lens the starting time for exposure mean exposure time Startup time, determine the camera lens of any time for exposure to be measured
The starting time for exposure and the mean exposure time Startup time difference within a preset range, it is determined that measure described any
The frame of the camera lens of a time for exposure to be measured is synchronous.
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 for the pointer taken the photograph determines the starting 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 is also used to determine being needed for acquisition
It surveys in the starting time for exposure of the camera lens of time for exposure, when each starting time for exposure and the mean exposure time start
The difference at quarter is in the preset range, it is determined that it is synchronous for measuring the frame of the camera lens of all time for exposure to be measured.
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. the system as described in claim 2 or 6, which is characterized in that the determination unit is inside the panorama camera；Or,
The determination unit is placed outside the panorama camera, connect with the panorama camera telecommunication or by communication interface；Or, institute
State the function that determination unit is built in described control unit or is replaced realizing the determination unit by described control unit.
11. the system as described in claim 2 or 6, which is characterized in that the determination unit is also used to determine being needed for acquisition
It surveys in multiple or all starting time for exposure in the starting time for exposure of the camera lens of time for exposure, each starting exposure
Maximum value in all differences of time and the mean exposure time Startup time, determines the maximum value in target zone
It is interior, it is determined that the camera lens of all time for exposure to be measured starting the time for exposure in the multiple time for exposure to be measured camera lens or
The camera lens of person's all time for exposure to be measured is frame synchronization.
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| CN106657983A (en) * | 2016-11-16 | 2017-05-10 | 深圳六滴科技有限公司 | Parameter test method and device for panoramic camera |
| CN107800979A (en) * | 2017-10-23 | 2018-03-13 | 深圳看到科技有限公司 | High dynamic range video image pickup method and filming apparatus |
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|---|---|---|---|---|
| US20020180759A1 (en) * | 1999-05-12 | 2002-12-05 | Imove Inc. | Camera system with both a wide angle view and a high resolution view |
| US7999842B1 (en) * | 2004-05-28 | 2011-08-16 | Ricoh Co., Ltd. | Continuously rotating video camera, method and user interface for using the same |
| CN106657983A (en) * | 2016-11-16 | 2017-05-10 | 深圳六滴科技有限公司 | Parameter test method and device for panoramic camera |
| CN107800979A (en) * | 2017-10-23 | 2018-03-13 | 深圳看到科技有限公司 | High dynamic range video image pickup method and filming apparatus |
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