CN106101695B - Camera accuracy of identification detecting system - Google Patents
Camera accuracy of identification detecting system Download PDFInfo
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- CN106101695B CN106101695B CN201610417734.9A CN201610417734A CN106101695B CN 106101695 B CN106101695 B CN 106101695B CN 201610417734 A CN201610417734 A CN 201610417734A CN 106101695 B CN106101695 B CN 106101695B
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- sliding block
- guide rail
- host computer
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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
Abstract
The present invention provides a kind of camera accuracy of identification detecting system, including：Identification object, host computer, camera and electro-motor to be detected, the substrate being connected respectively with host computer；Substrate includes orthogonal graduated first guide rail of tool and the second guide rail, and the first guide rail is provided with the first sliding block, and the second guide rail is provided with the second sliding block, and camera to be detected is located on the first sliding block, and the first sliding block and the second sliding block are connected with electro-motor respectively；The rotating speed of PC control electro-motor determines the first coordinate of camera to be detected after adjustment every time to adjust the horizontal and vertical distance of camera to be detected and identification object；Camera to be detected determines the second coordinate of camera to be detected according to the identification object image gathered after each adjustment；Host computer each first coordinate and each second coordinate corresponding to determine the accuracy of identification scope of camera to be detected, and judge whether to meet required precision, so as to simply and easily realize the accurately and reliably detection of accuracy of identification scope.
Description
Technical field
The present embodiments relate to testing for electrical equipment technical field, more particularly to a kind of camera accuracy of identification detection system
System.
Background technology
Intelligent mobile robot is that one kind can be real now with barrier by sensor senses environment and oneself state
Object-oriented independent navigation motion in environment, so as to complete the robot system of preplanned mission.In practical application scene, intelligence
Energy mobile robot will realize that independent navigation moves, and on the one hand can accurately identify front obstacle, on the other hand want energy
Walking border is enough accurately identified, to carry out rational travelling control.
In certain application scenarios, can with certain mark come define the walking border of each intelligent mobile robot or
Person identifies barrier, for example is sticked label image in opening positions such as the walking wall on border, desk, ceilings, works as intelligent mobile
When robot recognizes the label image of corresponding walking boundary, it is determined that having run to boundary, and then inverted, turned left
Or the travelling control such as right-hand rotation.In practical application, label figure can be gathered and identified using the first-class camera of such as infrared photography
Picture.Therefore, can the infrared camera on intelligent mobile robot accurately identify under certain accuracy of identification requirement
Go out to characterize the label image of walking border or barrier, for realizing that the independent navigation function of intelligent mobile robot is closed very much
Key.
Therefore, such as normally made on intelligent mobile robot the first-class camera of such as infrared photography is arranged on
With before, it is necessary to be detected to the accuracy of identification of the camera, to determine that the camera can reach default accuracy of identification
It is required that.Therefore, accuracy of identification that is how simple and convenient, detecting camera exactly, is urgent problem to be solved.
The content of the invention
The embodiment of the present invention provides a kind of camera accuracy of identification detecting system, to it is simple and convenient, detection is taken the photograph exactly
As the accuracy of identification of head.
The embodiment of the present invention provides a kind of camera accuracy of identification detecting system, including：
Identification object, camera to be detected, substrate, electro-motor, host computer；
The camera to be detected and the electro-motor are connected with the host computer respectively；
The substrate includes mutually orthogonal the first guide rail and the second guide rail, and first guide rail and second guide rail are equal
With scale, the first sliding block is provided with first guide rail, the second sliding block is provided with second guide rail, it is described to be detected
Camera is arranged on first sliding block, and first sliding block and second sliding block are connected with the electro-motor respectively；
Wherein, first sliding block is slidably connected with first guide rail, second sliding block and first guide rail
One end is fixedly connected, and second sliding block is slidably connected with second guide rail；
The host computer, the rotating speed of the electro-motor is controlled to adjust the camera to be detected and the identification object
Horizontal range and vertical range, and according to the horizontal range and the vertical range, it is determined that described to be checked after adjustment every time
Survey the first coordinate of camera；
The camera to be detected, the figure of the identification object after adjustment every time is gathered under the control of the host computer
Picture, and the second coordinate of the camera to be detected is determined according to described image, second coordinate is transferred to described upper
Machine；
The host computer, according to corresponding each first coordinate and each second coordinate, determine the knowledge of the camera to be detected
Other accuracy rating, and determine whether the accuracy of identification scope meets default accuracy of identification requirement.
Optionally, the first sliding block upper surface is provided with rotating disk, and the camera to be detected is arranged on the rotating disk；
The rotating disk is connected with the host computer；
The host computer, by controlling the rotating disk to adjust the shooting head-turned angle to be detected.
Optionally, first coordinate includes the scale according to corresponding to first sliding block and second sliding block difference
The first position coordinate of determination, and the first rotational angle determined according to the control to the rotating disk；In second coordinate
Including the second place coordinate and the second rotational angle determined according to described image；
The host computer, whether it is less than according to the range difference between corresponding each first position coordinate and each second place coordinate
Pre-determined distance threshold value, determine the range accuracy scope of the camera to be detected；According to corresponding each first rotational angle and respectively
Whether the differential seat angle between the second rotational angle is less than predetermined angle threshold value, determines the angle precision model of the camera to be detected
Enclose.
Optionally, the substrate includes supporting plate, and first guide rail and second guide rail are fixedly installed on the branch
On fagging.
By setting the supporting plate, it is ensured that the first guide rail and the second guide rail keep good orthogonality relation.
Optionally, the substrate-parallel is placed in ground, and the substrate also includes：Adjustable support bar, it is described adjustable
Adjustment control device is provided with support bar；
One end of the adjustable support bar is fixedly connected with the supporting plate, and the other end of the adjustable support bar is put
Put on the ground；
Height of the identification object at a distance of ground is stored with the host computer；
The host computer is connected with the adjustment control device, to control the adjustment control device to adjust the adjustable support
The length of bar, make matched of the camera to be detected at a distance of the height on ground with the identification object at a distance of ground.
Set by above-mentioned adjustable support bar etc., realize the automatic tune of the height of detection camera and identification object
It is whole.
Optionally, the host computer is connected with the electro-motor by the first com port, the host computer with it is described to be checked
Camera is surveyed to connect by USB.
Optionally, the host computer is connected with the rotating disk by the second com port.
Optionally, the quantity of second guide rail is two, and accordingly, the quantity of second sliding block is two, described
Two second both ends slided respectively with first guide rail are fixedly connected.
By setting two the second guide rails, it is ensured that the first guide rail and the second guide rail keep good orthogonality relation.
Camera accuracy of identification detecting system provided in an embodiment of the present invention, led in mutually orthogonal band graduated first
Sliding block is set respectively on rail and the second guide rail, camera is arranged on the sliding block set on the first guide rail, and by the two
Sliding block is connected with electro-motor respectively, controls the rotating speed of electro-motor to adjust camera and object to be identified by host computer
Horizontal range and vertical range.After adjusting each time, one side host computer is based on working as preceding camera institute on two guide rails
The scale at place determines the first coordinate of camera, another aspect camera based on the IMAQ to identification object and image at
Reason, determine the second coordinate of camera, so as to, first coordinate of the host computer based on the camera oneself determined after each adjustment with
The comparative result of second coordinate of the camera that camera determines, the accuracy of identification scope of camera is determined, should with final judgement
Camera disclosure satisfy that default accuracy of identification requirement.By the detecting system, it is not only able to automatically control camera movement, and
And the actual coordinate for obtaining camera can be accurately positioned, pass through the figure by obtained actual coordinate with camera to identification object
As the obtained estimated coordinates of analysis are compared the accuracy of identification scope that just can accurately draw camera, realize it is simple and convenient and
As a result accurately and reliably.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of camera accuracy of identification detecting system embodiment one of the present invention；
Fig. 2 is the structural representation of camera accuracy of identification detecting system embodiment two of the present invention；
Fig. 3 is the structural representation of camera accuracy of identification detecting system embodiment three of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The term used in embodiments of the present invention is only merely for the purpose of description specific embodiment, and is not intended to be limiting
The present invention." one kind ", " described " and "the" of singulative used in the embodiment of the present invention and appended claims
It is also intended to including most forms, unless context clearly shows that other implications.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, represent
There may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, while A and B be present, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.
It will be appreciated that though XXX may be described using term first, second, third, etc. in embodiments of the present invention, but
These XXX should not necessarily be limited by these terms.These terms are only used for XXX being distinguished from each other out.For example, implementation of the present invention is not being departed from
In the case of example scope, the first XXX can also be referred to as the 2nd XXX, and similarly, the 2nd XXX can also be referred to as the first XXX.
Depending on linguistic context, word as used in this " if ", " if " can be construed to " ... when " or
" when ... " or " in response to determining " or " in response to detection ".Similarly, depending on linguistic context, phrase " if it is determined that " or " such as
Fruit detects (condition or event of statement) " can be construed to " when it is determined that when " or " in response to determine " or " when detection (statement
Condition or event) when " or " in response to detect (condition or event of statement) ".
It should also be noted that, term " comprising ", "comprising" or its any other variant are intended to nonexcludability
Comprising, so that commodity or system including a series of elements not only include those key elements, but also including without clear and definite
The other element listed, or also include for this commodity or the intrinsic key element of system.In the feelings not limited more
Under condition, the key element that is limited by sentence "including a ...", it is not excluded that in the commodity including the key element or system also
Other identical element be present.
Fig. 1 is the structural representation of camera accuracy of identification detecting system embodiment one of the present invention, as shown in figure 1, shooting
Head accuracy of identification detecting system includes：Identification object 1, substrate 2, camera to be detected 3, electro-motor 4, host computer 5.It is to be detected
Camera 3 and electro-motor 4 are connected with host computer 5 respectively.
In practical application, identification object 1 can be attached to the label image of wall, ceiling etc., but be not restricted to that
The specific implementation.Camera 3 to be detected can be infrared camera, but be not restricted to that the specific implementation.
Specifically, host computer 5 can pass through the first COM (cluster with electro-motor 4
Communication port, abbreviation COM) mouth connection, host computer 5 and camera 3 to be detected can pass through USB
(Universal Serial Bus, abbreviation USB) is connected.
Substrate 2 includes mutually orthogonal the first guide rail 21 and the second guide rail 22, and the first guide rail 21 and the second guide rail 22 have
There is scale, the first sliding block 23 is provided with the first guide rail 21, the second sliding block 24, camera to be detected are provided with the second guide rail 22
3 are arranged on the first sliding block 23, and the first sliding block 23 and the second sliding block 24 are connected with electro-motor 4 respectively.Wherein, the first sliding block 23
It is slidably connected with the first guide rail 21, the second sliding block 24 is fixedly connected with one end of the first guide rail 21, and the second sliding block 24 is led with second
Rail 22 is slidably connected.
In practical application, the first guide rail 21 and the second guide rail 22 can all be linear guide rails, its length and thereon
Scale precision can set according to the actual requirements.First sliding block 23 can slide along the first guide rail 21, so as to be fixed on the
Camera to be detected 3 on one sliding block 23 slides with the first sliding block 23 on the first guide rail 21, so as to change to be detected take the photograph
As the horizontal range between first 3 and identification object 1.
In practical application, height of the identification object 1 apart from ground can be preset, so as to which substrate 2 is arranged on
The place of respective heights so that height phase of the camera 3 to be detected at a distance of height and the identification object 1 apart ground on ground
Match somebody with somebody.
Connected between first guide rail 21 and the second guide rail 22 by the second sliding block 24, specifically, the second sliding block 24 and second
Guide rail 22 is slidably connected, i.e. the second sliding block 24 can be slided along the second guide rail 22, also, one end of the first guide rail 21 is fixedly connected
On the second sliding block 24, therefore, the slip of the second sliding block 24 enables the first guide rail 21 to be slided along the second guide rail 22, from
And the slip of the second sliding block 24 can change the vertical range between camera 3 to be detected and identification object 1.
In the orthogonal straight lines type guide rail structure that only first guide rail 21 and second guide rail 22 are formed, due to the
One guide rail 21 only one end is connected with the second guide rail 22 by the second sliding block 24, and the other end may be at vacant state, now, at certain
It may be easier to cause the first guide rail 21 and the second guide rail 22 to keep good orthogonality relation in the case of a little, influence final
Testing result accuracy.
It is optional for this, two the second guide rails 22 can also be set, accordingly, the quantity of the second sliding block 24 is two, two
Individual second sliding block 24 is slidably connected with two the second guide rails 22 respectively, also, two the second sliding blocks 24 respectively with the first guide rail 21
Both ends be fixedly connected, that is to say, that the both ends of the first guide rail 21 are respectively fixedly connected with the second sliding block 24.
Under the hardware structure for the above-mentioned camera accuracy of identification detecting system that the present embodiment provides, it can use as follows
Mode carries out the detection process of the accuracy of identification of camera 3 to be detected.
During actually detected, camera 3 to be detected can be set in advance in some initial position, and then gradually adjust
The position of whole camera to be detected 3, carries out follow-up detection process.Wherein, the initial position such as can be relative to knowledge
Other object 1 has certain vertical range, and horizontal range is 0 somewhere, or can also have certain vertical range and one
The somewhere such as vertical range and horizontal range for determining horizontal range are the opening position of maximum distance, are not limited specifically.
Preferably, substrate 2 and the relative position of identification object 1 can be fixedly installed in advance, so, different testing
When camera 3 to be detected, the camera on the first sliding block 23, the first sliding block 23, the and of the second sliding block 24 need to be only changed
The position of identification object 1 may not necessarily be changed.Moreover, the initial position of camera 3 to be detected is the first sliding block 23, the second sliding block
24 preferably have certain vertical range relative to the position of identification object 1 relative to identification object 1, and horizontal range is 0
Somewhere.In the opening position, identification object 1 is faced equivalent to camera 3 to be detected.Now, camera 3 to be detected can be clapped
The reference picture of identification object 1 is obtained, and determines the coordinate of the pixel in some pixel such as lower left corner in the reference picture
For the origin of coordinates (0,0) in image coordinate system.The origin of coordinates and the first sliding block 23, the second sliding block 24 in the first guide rail 21 and
Scale value on second guide rail 22 has corresponding relation.Such as, it is assumed that scale corresponding to current first sliding block 23, the second sliding block 24
Value is respectively a, b, the then origin of coordinates in image coordinate system (0,0) and the origin of coordinates (a, b) in guide rail coordinate system corresponding.
After processing based on above-mentioned initialization, in the detection process of reality, host computer 5 controls turning for electro-motor 4
Speed to adjust the horizontal range and vertical range of camera 3 to be detected and identification object 1, and according to horizontal range and vertically away from
From, it is determined that every time adjustment after camera 3 to be detected the first coordinate.
In fact, host computer 5 can control the rotating speed of electro-motor 4 in a manner of step-type.
What deserves to be explained is optionally, when electro-motor 4 only has one, the first sliding block 23 and the second sliding block 24 can be with
It is connected respectively by different connection lines with electro-motor 4, during being controlled, host computer 5 can control electronic
Motor 4 is respectively communicated with different connection lines, can control the sliding distance of the first sliding block 23 and the second sliding block 24 respectively.Than
Such as, certain moment, host computer 5 issue control instruction to electro-motor 4, and control electro-motor 4 connects the line between the first sliding block 23
Road and disconnect the circuit between the second sliding block 24, so as to control the first sliding block 23 to move a certain distance along the first guide rail 21.This
When, keep the vertical range between camera 3 to be detected and identification object 1 constant, and simply change horizontal range between the two.
Optionally, when electro-motor 4 has two, the first sliding block 23 and the second sliding block 24 can respectively with an electronic horse
Up to 4 connections, during being controlled, host computer 5 can be realized to first by controlling different electro-motors 4 respectively
The control of the sliding distance of the sliding block 24 of sliding block 23 and second.
Simultaneously it is understood that the rotating speed of electro-motor 4 and the sliding distance of the first sliding block 23 and the second sliding block 24 it
Between there is certain corresponding relation, so as to according to the sliding block 24 of the first sliding block 23 and second set in advance move every time away from
From step-length, it is determined that the rotating speed of required electro-motor 4.
After above-mentioned adjustment is carried out every time, the one side of host computer 5 is according to the camera to be detected 3 after each adjustment with knowing
Other 1 horizontal range of object and vertical range, determine the first coordinate of camera 3 to be detected；On the other hand, to be detected take the photograph is controlled
As identification object 1 after first 3 collections every time adjustment and image, and analyze, be calculated the second coordinate of camera 3 to be detected.
Specifically, the initial position of the first sliding block 23 and the second sliding block 24 can be stored in host computer 5, than as described above (a,
b).So as to, first time according to a certain distance step-length require control electro-motor 4 rotating speed after, according to this apart from step-length with
And mobile control strategy set in advance, host computer 5 can determine the first sliding block 23 and the correspondence of the second sliding block 24 after this time adjustment
Scale value, it is thus possible to according to the initial position of the first sliding block 23 and the second sliding block 24 and this time adjustment after the first sliding block 23
And second sliding block 24 respectively corresponding scale value determine it is horizontal between camera to be detected 3 and identification object 1 after this time adjustment
Distance and vertical range, so as to obtain the first coordinate of camera 3 to be detected.
Wherein, mobile control strategy in simple terms, refers on the direction of the first guide rail 21 and the second guide rail 22, pressed respectively
What kind of moves control apart from step-length according to, for example keeps the position of the second sliding block 24 constant first, is walked according to pre-determined distance
It is long to control mobile first sliding block 23 to be moved along the first guide rail 21 respectively, when along the first guide rail 21 from one end be moved to the other end it
Afterwards, according to the position of default the second sliding block of step-size change 24.
Camera 3 to be detected, the image of identification object 1 after adjustment every time is gathered under the control of host computer 5, and according to figure
The second coordinate as determining camera 3 to be detected, host computer 5 is transferred to by the second coordinate.
Wherein, the image that camera 3 to be detected gathers according to it determines the second coordinate of current camera 3 to be detected,
Can handle to obtain based on analysis, calculating of the camera 3 to be detected to the image of collection.In simple terms, due to initialization
When, the initial position of camera 3 to be detected faces identification object 1, and the image of the identification object 1 now gathered is reference chart
Picture, the coordinate of some reference image vegetarian refreshments therein is as the origin of coordinates in image coordinate system.It is to be detected during actually detected
By after movement, the camera 3 to be detected changes camera 3 relative to the shooting orientation of identification object 1, now gathers
The coordinate of the reference image vegetarian refreshments is changed in the image of identification object 1, and the reference pixel can be determined based on image coordinate system
Coordinate position of the point in the image coordinate system, and the corresponding relation based on image coordinate system Yu guide rail coordinate system, can be true
Second coordinate of fixed camera 3 to be detected.
Host computer 5, according to corresponding each first coordinate and each second coordinate, determine the accuracy of identification of camera 3 to be detected
Scope, and determine whether accuracy of identification scope meets default accuracy of identification requirement.
Specifically, for adjusting each time, it is to be checked with receiving that host computer 5 calculates itself on the first coordinate obtained
Survey the second coordinate that camera 3 is sent to be compared, if both differences are less than or equal to default error threshold, illustrate such as
Fruit camera 3 to be detected moves in the range of horizontal range, vertical range corresponding to the first coordinate, still can accurately identify
Go out identification object 1.
By repeated multiple times detection, be finally capable of determining that camera 3 to be detected relative to identification object 1 some away from
Identification object 1 can be recognized accurately from the range of, wherein, camera 3 to be detected can be recognized accurately identification object 1 away from
From scope by each first coordinate less than above-mentioned default error threshold reflected with a distance from determine, moreover, the distance range is
The distance range of the accuracy of identification of camera 3 to be detected.By the scope determined and accuracy of identification requirement pair set in advance
Than if reaching the required precision, illustrating that camera 3 to be detected is can be by the camera of normal use, otherwise, it determines it is
Cannot be by the camera of normal use.
For the accuracy of identification scope of camera 3 to be detected, entered from the angle of its range accuracy scope in the present embodiment
What row was introduced, it can also be illustrated in subsequent embodiment with reference to angle precision.
The camera accuracy of identification detecting system that the present embodiment provides, in mutually orthogonal graduated first guide rail of band and
Sliding block is set respectively on second guide rail, camera is arranged on the sliding block set on the first guide rail, and by the two sliding blocks
It is connected respectively with electro-motor, the rotating speed of electro-motor is controlled to adjust the water of camera and object to be identified by host computer
Flat distance and vertical range.After adjusting each time, one side host computer based on when preceding camera on two guide rails it is residing
Scale determines the first coordinate of camera, and another aspect camera is based on the IMAQ and image procossing to identification object, really
The second coordinate of camera is determined, so as to first coordinate and shooting of the host computer based on the camera oneself determined after each adjustment
The comparative result of second coordinate of the camera that head determines, the accuracy of identification scope of camera is determined, finally to judge the shooting
Head disclosure satisfy that default accuracy of identification requirement.By the detecting system, it is not only able to automatically control camera movement, Er Qieneng
The actual coordinate for obtaining camera is enough accurately positioned, by the way that obtained actual coordinate and camera are divided the image of identification object
Analyse obtained estimated coordinates and be compared the accuracy of identification scope that just can accurately draw camera, realize simple and convenient and result
Accurately and reliably.
Fig. 2 is the structural representation of camera accuracy of identification detecting system embodiment two of the present invention, as shown in Fig. 2 in Fig. 1
On the basis of illustrated embodiment, the upper surface of the first sliding block 23 is provided with rotating disk 25, and camera 3 to be detected is arranged on rotating disk 25, can
With understanding, rotating disk 25 is rotatablely connected with the first sliding block 23.Rotating disk 25 is connected with host computer 5, and practical application collects, host computer
5 can be connected with rotating disk 25 by the second com port.Optionally, host computer 5 can also be connected with rotating disk 25 by USB port.
In practical application, the detection for the accuracy of identification of camera 3 to be detected, except its distance identification essence can be detected
It is outside one's consideration, its angle recognition precision can also be detected.The implication of the angle recognition precision is similar with the implication apart from accuracy of identification, is
Refer to the angular range that camera 3 to be detected still is able to accurately detect identification object 1 after turning an angle.And the accurate inspection
Survey is that can the angular turn control that host computer 5 is accurately performed by camera 3 to be detected judge.It is exactly in simple terms, on
Position machine 5 controls camera 3 to be detected to turn an angle, if camera to be detected 3 feed back to the angle of host computer 5 with it is upper
Machine 5 controls its angle automatching rotated, then illustrates that camera 3 to be detected can accurately perform the control of host computer 5.
Specific detection process is as follows：
Host computer 5, by controlling rotating disk 25 to adjust the rotational angle of camera 3 to be detected.Wherein, host computer 5 is to turning
The control of disk 25 can be controlled in a manner of step-type, you can to change the certain angle of the rotation of rotating disk 25 every time
Degree.
Now, except including being divided according to the first sliding block 23 and the second sliding block 24 in the first coordinate that host computer 5 determines to obtain
Outside the first position coordinate that not corresponding scale determines, in addition to the first rotational angle determined according to the control to rotating disk 25.
In practical application, the rotational angle of rotating disk 25 is θ when initial, it is assumed that it is 10 that host computer 5, which controls the step-length of the rotational angle of rotating disk 25,
Degree, then after adjusting for the first time, rotational angle is changed into the degree of θ+10, the like.Wherein, the expression-form of the first coordinate can be
(a,b,θ).Wherein, above-mentioned first position coordinate and the first rotational angle, host computer 5 can be carved according to corresponding to the first sliding block 23
Scale value corresponding to angle value, the second sliding block 24, its determination easy to control of angle to rotating disk 5.
When host computer 5 controls the first sliding block 23, the second sliding block 24 to slide, and after controlling rotating disk 25 to rotate, shooting to be detected
First 3 are not only influenceed relative to the shooting angle of identification object 1 by camera 3 to be detected apart from mobile, also by be detected
The influence of the rotational angle of camera 3.Camera 3 to be detected is relative by reference image vegetarian refreshments in the identification object 1 to now gathering
Analysis, the calculating processing of the coordinate position of reference image vegetarian refreshments in reference picture, the of now camera 3 to be detected can be obtained
Two coordinates, wherein containing the second place coordinate and the second rotational angle determined according to the image of collection, it is assumed that be expressed as
(a’,b’,θ’)。
For adjusting each time, host computer all obtains corresponding first coordinate and the second coordinate.So as to, host computer 5, according to
Whether the range difference between corresponding each first position coordinate and each second place coordinate is less than pre-determined distance threshold value, determines to be detected
The range accuracy scope of camera 3；According to the differential seat angle between corresponding each first rotational angle and each second rotational angle whether
Less than predetermined angle threshold value, it is determined that the angle precision scope of detection camera 3.
The determination of the range accuracy scope of camera 3 to be detected is in the aforementioned embodiment it is stated that angle precision scope
Determination it is similar therewith, repeat no more.
The camera accuracy of identification detecting system provided based on the present embodiment, can automatically control the shifting of camera to be detected
It is dynamic and rotate, by and the first coordinate actually obtained, will be existed based on the control to camera to be detected with camera to be detected
The second coordinate being calculated after controlled is compared, easily and accurately to realize to camera accuracy of identification to be detected
Detection.
Fig. 3 is the structural representation of camera accuracy of identification detecting system embodiment three of the present invention, as shown in figure 3, in Fig. 1
On the basis of illustrated embodiment, substrate 2 also includes supporting plate 26, and the first guide rail 21 and the second guide rail 22 are fixedly installed on supporting plate 26
On.
In practical application, in the orthogonal straight lines type guide rail knot that only first guide rail 21 and second guide rail 22 are formed
In structure, because the first guide rail 21 only one end is connected with the second guide rail 22 by the second sliding block 24, the other end may be at hanging shape
State, now, it may be easier to cause the first guide rail 21 and the second guide rail 22 can not keep good orthogonal in some cases
Relation, influence the accuracy of final testing result.
Optional for this, substrate 2 can also include supporting plate 26, and the first guide rail 21 and the second guide rail 22 are fixedly installed on branch
On fagging 26.By providing a supporting plate 26 for the first guide rail 21 and the second guide rail 22, by the first guide rail 21 and the second guide rail
22 are fixedly installed in supporting plate 26, can keep having good orthogonality relation between the first guide rail 21 and the second guide rail 22.
It is, moreover, an optional that if substrate 2 and identification object 1 and on-fixed are pre-set in practical application, for example know
Other object 1 is just attached on wall temporarily when needing to detect the accuracy of identification of some camera 3 to be detected, now, the phase of substrate 2
It may be mismatched relative to the height on ground with identification object 1 for the height on ground.Therefore, assume substrate 2 in practical application
Placed parallel to ground, substrate 2 can also include：Adjustable support bar 27, one end and the supporting plate 26 of adjustable support bar 27
It is fixedly connected, the other end of adjustable support bar 27 is placed on the ground, and adjustment control device is provided with adjustable support bar 27
28。
Height of the identification object 1 at a distance of ground can be previously stored with host computer 5, the elevation information can be artificial defeated
Enter into host computer 5.Host computer 5 is connected with adjustment control device 28, and adjustable branch is adjusted by controlling to adjust controller 28
The length of strut 27, make matched of the camera 3 to be detected at a distance of the height on ground with identification object 1 at a distance of ground, with reality
Now detect camera 3 and the adjust automatically of the height of identification object 1.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on such understanding, on
The part that technical scheme substantially in other words contributes to prior art is stated to embody in the form of software product, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including some fingers
Make to cause a computer installation (can be personal computer, server, or network equipment etc.) to perform each implementation
Method described in some parts of example or embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (8)
- A kind of 1. camera accuracy of identification detecting system, it is characterised in that including：Identification object, camera to be detected, substrate, electro-motor, host computer；The camera to be detected and the electro-motor are connected with the host computer respectively；The substrate includes mutually orthogonal the first guide rail and the second guide rail, and first guide rail and second guide rail are respectively provided with Scale, the first sliding block is provided with first guide rail, the second sliding block, the shooting to be detected are provided with second guide rail Head is arranged on first sliding block, and first sliding block and second sliding block are connected with the electro-motor respectively；Wherein, first sliding block is slidably connected with first guide rail, one end of second sliding block and first guide rail It is fixedly connected, second sliding block is slidably connected with second guide rail；The host computer, the rotating speed of the electro-motor is controlled to adjust the water of the camera to be detected and the identification object Flat distance and vertical range, and according to the horizontal range and the vertical range, it is determined that described after adjustment every time to be detected take the photograph As the first coordinate of head；The camera to be detected, the image of the identification object after adjustment every time is gathered under the control of the host computer, and The second coordinate of the camera to be detected is determined according to described image, second coordinate is transferred to the host computer；The host computer, according to corresponding each first coordinate and each second coordinate, determine that the identification of the camera to be detected is smart Scope is spent, and determines whether the accuracy of identification scope meets default accuracy of identification requirement.
- 2. system according to claim 1, it is characterised in that the first sliding block upper surface is provided with rotating disk, described to treat Detection camera is arranged on the rotating disk；The rotating disk is connected with the host computer；The host computer, by controlling the rotating disk to adjust the shooting head-turned angle to be detected.
- 3. system according to claim 2, it is characterised in that first coordinate include according to first sliding block and Second sliding block respectively corresponding to the first position coordinate that determines of scale, and the determined according to the control to the rotating disk One rotational angle；Second coordinate includes the second place coordinate and the second rotational angle determined according to described image；The host computer, it is default according to whether the range difference between corresponding each first position coordinate and each second place coordinate is less than Distance threshold, determine the range accuracy scope of the camera to be detected；According to corresponding each first rotational angle and each second Whether the differential seat angle between rotational angle is less than predetermined angle threshold value, determines the angle precision scope of the camera to be detected.
- 4. system according to claim 1, it is characterised in that the substrate includes supporting plate, first guide rail and institute The second guide rail is stated to be fixedly installed in the supporting plate.
- 5. the system stated according to claim 4, it is characterised in that the substrate-parallel is placed in ground, and the substrate also includes： Adjustable support bar, adjustment control device is provided with the adjustable support bar；One end of the adjustable support bar is fixedly connected with the supporting plate, and the other end of the adjustable support bar is placed on On ground；Height of the identification object at a distance of ground is stored with the host computer；The host computer is connected with the adjustment control device, to control the adjustment control device to adjust the adjustable support bar Length, make matched of the camera to be detected at a distance of the height on ground with the identification object at a distance of ground.
- 6. system according to claim 1, it is characterised in that the host computer passes through the first COM with the electro-motor Mouth connection, the host computer are connected with the camera to be detected by USB.
- 7. system according to claim 2, it is characterised in that the host computer is connected with the rotating disk by the second com port Connect.
- 8. system according to any one of claim 1 to 7, it is characterised in that the quantity of second guide rail is two, Accordingly, the quantity of second sliding block is two, and both ends of described two second sliding blocks respectively with first guide rail are fixed Connection.
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| CN201610417734.9A CN106101695B (en) | 2016-06-15 | 2016-06-15 | Camera accuracy of identification detecting system |
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| CN106405681B (en) * | 2016-11-11 | 2019-06-11 | 公安部第三研究所 | Detection device and detection method for handheld video somascope index test |
| CN107770516A (en) * | 2017-09-20 | 2018-03-06 | 东莞华贝电子科技有限公司 | Camera testing system and method |
| CN110225336B (en) * | 2019-06-21 | 2022-08-26 | 京东方科技集团股份有限公司 | Method and device for evaluating image acquisition precision, electronic equipment and readable medium |
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