CN107306325A - The device of utilization space measurement of coordinates camera module visual field and its application - Google Patents
The device of utilization space measurement of coordinates camera module visual field and its application Download PDFInfo
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- CN107306325A CN107306325A CN201610261738.2A CN201610261738A CN107306325A CN 107306325 A CN107306325 A CN 107306325A CN 201610261738 A CN201610261738 A CN 201610261738A CN 107306325 A CN107306325 A CN 107306325A
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- camera module
- visual field
- reference element
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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
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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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
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
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- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The device of one utilization space measurement of coordinates camera module visual field of present invention offer and its application, the angle of visual field angle value for counting camera module, including：One support, for fixed camera module at least described in one；With a reference element, the support is placed in the accommodating chamber of the reference element formation, the receiving cavity wall of the reference element has at least one two dimension sign, the angle of visual field angle value of the camera module is can obtain by the image information for the receiving cavity wall for analyzing the reference element that the camera module is shot, wherein, there is two dimension sign at least described in one in the image of the camera module intake.
Description
Technical field
The present invention relates to the dress in camera module field, more particularly to a utilization space measurement of coordinates camera module visual field
Put and its apply.
Background technology
The universalness either applied in recent years with intelligent apparatus and variation, or with various anti-terrorism,
Antitheft, monitoring, empty clap etc. shoot the prevailing of demand, people for camera module demand except traditionally
Beyond overweighting high-resolution and being frivolous, the requirement of high wide-angle is more further added in many aspects.Simultaneously as electric
Brain operational capability is more and more stronger, and the software of 3D solution pictures also makes rapid progress, and seems to perform monitoring many when
During work, the camera module of a high wide-angle often just can substitute multiple general camera modules.In this kind of situation
Under, change the camera module for adopting a small amount of high wide-angle in addition to it can reduce the cost of unnecessary camera module, it is most heavy
What is wanted is that can reduce the configuration such as volume, weight and line power of single unit system, so it is significant optimize it should
Use device.For example, for anti-terrorism or the empty bat machine of field exploration, can only possess one close to 360
The camera module of wide-angle is spent, you can meet its application well, so that without perhaps using traditional many camera lenses of a machine
Way, its installation weight saved and configuration electric power will can allow empty equipment of clapping for longer endurance.In addition,
Seem move, take photo by plane, the different occasions such as vehicle-mounted, be often also required to using the camera module for possessing ultra-large vision field
To carry out the more fully work such as record and monitoring.
Therefore, in order to realize application of the current camera module in different occasions, manufacturer, which must produce, a variety of to be possessed
The camera module of the different angles of visual field, and ensure that camera module possesses and should had during production or follow-up product examine
The angle of visual field.In order to examine the important parameter of this camera module, traditional manufacturer or proofer are frequently with normal
The method of testing of rule, that is, count according to focal distance and real screen catercorner length the visual field of module
Angle, so that it is guaranteed that inspected camera module meets the specification.
But although current this routine inspection method applies also for detecting traditional camera module for neglecting rink corner,
Once for detecting that wide-angle imaging module will have a defect.Specifically, when the angle of visual field by inspection camera module
During increase, its diagonal in positive tangent ratio also will increase so that cause traditional detection method measure difficulty with
Increasing.Especially when the angle of visual field by inspection camera module is close to 180 °, its diagonal distance will tend to nothing
Thoroughly, now traditional detection method will be difficult to accurately measure the angle of visual field by inspection camera module.
In addition, traditional detection method improves the accuracy of detection, often it is also required to by inspection camera module and reality
Picture has longer distance, while setting a larger picture to supply to be shot by inspection camera module.Therefore tester
It will must prepare a larger space to implement the traditional detection method, this is also padded tester or manufacturer
Need the cost of burden.To solve this problem, it is necessary to research and develop the test side of applicable ultra-large vision field camera module
Case, it not only only needs less space just to implement, more must be able to accurately measure regarding for high wide-angle imaging module
.
The content of the invention
The purpose of the present invention is the device for providing a utilization space measurement of coordinates camera module visual field, its reference
The receiving cavity wall of element has multiple two dimension signs, by the way that an at least camera module is arranged at into the reference member
The accommodating chamber of part is interior and shoots the image inside the accommodating chamber of the reference element, is able to the appearance according to reference element
Receive the angle of visual field angle value of camera module described in the image statisticses in intracavitary portion.
Another object of the present invention is to provide the device of a utilization space measurement of coordinates camera module visual field, including
One support, the support is used for fixed camera module at least described in one in the accommodating chamber of the reference element, its
In, the support is able at least dimensionally adjust the camera module in the position in the accommodating chamber of the reference element
Put.
Another object of the present invention is to provide the device of a utilization space measurement of coordinates camera module visual field, it is obtained
To measure the accurate angle of visual field angle value of the camera module of the angle of visual field less than 180 °.
Another object of the present invention is to provide the device of a utilization space measurement of coordinates camera module visual field, it is obtained
To measure the accurate angle of visual field angle value of the camera module of the angle of visual field more than 180 °.
Another object of the present invention is to provide the device of a utilization space measurement of coordinates camera module visual field, it is surveyed
Space needed for amount is small compared with conventional practice.
The purpose of the present invention is the device for providing a utilization space measurement of coordinates camera module visual field, and it can be fast
The field of view angle of camera module described in fast batch testing.
The purpose of the present invention is the method for providing a utilization space measurement of coordinates camera module visual field, and it can
The field of view angle of 0-360 ° of camera module described in the photo express statistic shot according to the camera module.
To achieve the above objectives, the present invention provides the device of a utilization space measurement of coordinates camera module visual field, fits
In the visual field of the camera module of measurement matching, including：
One support, for fixed camera module at least described in one；With
One reference element, the support is placed in the accommodating chamber of the reference element formation, described with reference to member
The receiving cavity wall of part has at least one two dimension sign, by analyzing the reference member that the camera module is shot
The image information of the inwall of the accommodating chamber of part can obtain the angle of visual field angle value of the camera module, wherein, it is described to take the photograph
There is two dimension sign described at least one in the image absorbed as module.
Preferably, the reference element further comprise one first target, one second target, one the 3rd target,
One the 4th target and one the 5th target, are disposed adjacently the accommodating chamber to form the reference element in described respectively
Between first mark version, the second mark version, the 3rd mark version, the 4th mark version and the 5th mark version simultaneously
As the cavity wall of the accommodating chamber of the reference element, wherein, the first mark version, the second mark version, described
3rd mark version, the 4th mark version and the 5th mark version have at least one first two dimension sign, at least one respectively
Second two dimension sign, at least one the 3rd two dimension sign, at least one the 4th two dimension sign and at least one the 5th two dimension mark
Show so that the receiving cavity wall of the reference element has two dimension sign at least described in five.
Preferably, the central optical axis of the camera module of the support are fixed in perpendicular to the described 1st
Dimension sign, the second two dimension sign, the 3rd two dimension sign, the 4th two dimension sign and the described 5th
One of two dimension sign.
Preferably, the camera module is placed in the three-dimensional center of the accommodating chamber of the reference element.
Preferably, the device of the utilization space measurement of coordinates camera module visual field further comprises a light source, quilt
The support rear portion is arranged at, and the direction of the camera module with being arranged at the support is consistent, to prop up
Hold the image that the camera module shoots the inwall of the reference element.
According to another aspect of the present invention, the present invention provides the side of a utilization space measurement of coordinates camera module visual field
Method, including step：
(a) camera module is set in a support, wherein, the support is located at the receiving of the formation of reference element
The center of chamber；
(b) image inside the accommodating chamber of the reference element is absorbed by the camera module；And
(c) image information absorbed according to the camera module counts the angle of visual field angle value of the camera module,
Wherein, the reference element, which accommodates cavity wall, has at least five two dimension signs, is arranged at the institute of the support
Camera module is stated to be indicated towards two dimension at least described in one.
Preferably, also comprise the following steps before step (a)：With the three-dimensional of the accommodating chamber of the reference element
Center is that origin sets up three-dimensional system of coordinate.
Preferably, step (c) further comprises following steps：
(c.1) reads the described image information captured by the camera module, wherein, described image information is
The coordinate value on two summits of image diagonal, two summits are defined as point A (x, y, z) and point B (x', y', z')；
(c.2) judge whether the camera module angle of visual field is less than 180 °, if so, step (c.3) is then performed,
If it is not, then performing step) (c.4)；
(c.3) formula is utilized
Count the visual field of the camera module
Angle value；And
(c.4) formula is utilized
Count the visual field of the camera module
Angle value.
Preferably, have in step (c.3), in the image that the camera module is shot two-dimentional at least described in one
Sign.
Preferably, there are multiple two dimension marks in step (c.4), in the image that the camera module is shot
Show.
Preferably, the image that step (c.2) can be shot according to the camera module judges the camera module
Whether the angle of visual field is more than 180 °.
Preferably, in step (c.4), the z-axis of point A coordinate (x, y, z) and point B coordinate (x', y', z')
Numerical value be less than or equal to 0.
Brief description of the drawings
Fig. 1 is showing for a preferred embodiment of the device of utilization space measurement of coordinates camera module visual field of the present invention
It is intended to.
Fig. 2 is the of a preferred embodiment of the device of utilization space measurement of coordinates camera module visual field of the present invention
Schematic diagram on the inside of one target.
Fig. 3 is answering for a preferred embodiment of the device of utilization space measurement of coordinates camera module visual field of the present invention
Use schematic diagram.
Fig. 4 is the another of a preferred embodiment of the device of utilization space measurement of coordinates camera module visual field of the present invention
One application schematic diagram.
Fig. 5 be a preferred embodiment of the device of utilization space measurement of coordinates camera module visual field of the present invention again
One application schematic diagram.
Fig. 6 is another preferred embodiment of the device of utilization space measurement of coordinates camera module visual field of the present invention
Schematic diagram.
Fig. 7 is that the device of invention utilization space measurement of coordinates camera module visual field detects the angle of visual field of camera module
A method flow schematic diagram.
If Fig. 8 is that the device of invention utilization space measurement of coordinates camera module visual field detects the visual field of camera module
The another method schematic flow sheet at angle.
Embodiment
Describe to be used to disclose the present invention below so that those skilled in the art can realize the present invention.In describing below
Preferred embodiment be only used as citing, it may occur to persons skilled in the art that other obvious modifications.With
The general principle of the invention defined in lower description can apply to other embodiments, deformation program, improvement side
Case, equivalent and the other technologies scheme without departing from the spirit and scope of the present invention.
As shown in figure 1, according to the utilization space measurement of coordinates camera module of first preferred embodiment of the present invention
The device 1 of visual field, including a support 10, a reference element 20 and a light source 30.Wherein described support 10
For a fixed at least camera module, and the camera module for preparing acceptance test can be set to three-dimensional regulation,
The reference element 20 is set around the ground of support 10, and the light source 30 is used to provide illumination, to be lifted
The measurement effect of the measurement apparatus 1, wherein the light source 30 is arranged at the rear portion of the support 10, and with
The direction for being arranged at the camera module of the support 10 is consistent, in the preferred embodiment, the light source
30 with the camera module towards the front of the support 10.
In the present embodiment, the light source 30 is implemented as by several light-emittingdiodes (LED) and the power supply carried
The light-emitting section constituted with control circuit, for equably in providing light in the reference element 20, making described
Camera module shooting effect is more preferable, imaging becomes apparent from, while can also coordinate test or measure the shooting mould
Group is contrasted in brightness, distribution, aperture regulation etc. be related to varying environment illumination or brightness shoot function performance how.
Skilled person should be understood that the light source 30 in addition to being implemented as LED lamp, at it
In his embodiment, it can also be implemented as seeming to carry one or more bulbs, fluorescent tube, chemical illumination
The light fixture or light source of device or other lighting devices and combinations thereof, so that same or like effect can be realized.
Or even in various embodiments, it is direct or indirect that the light source 30 can also be implemented as tolerable light
Project or be refracted into the device of the inner side of the reference element 20, such as one or more openings, window, dive
Window, material or device with internal refraction function are hoped, seems optical fiber etc., so that in itself non-luminous situation
Under, using being present in the external world, that is, the outside of the reference element 20, light, seem light or sunlight etc.,
Light is provided for the inside of reference element 20.It is noted that the light source 30 is not also visible to send
Light is limited, and when it is applied to different test cases, can also send or import light of the wavelength beyond visible ray
Ripple.
Preferably, the support 10 is that a multidimensional adjusts platform, in the preferred embodiment, with the support
10 be a three-dimensional regulation platform exemplified by, in addition to the camera module for fixing different shape and specification, institute
Support 10 is stated to be able to drive the camera module to be moved in three dimension directions.The support 10 is set
In in the accommodating chamber that the reference element 20 is formed, that is to say, that the support 10 described in driving by taking the photograph
As module is moved on three dimensionality direction, to adjust the camera module in the reference element 20
Position in accommodating chamber, for measuring the field of view angle of the camera module.It is noted that the branch
The inside of frame 10 has the passage for being adapted to match the camera module, so that described with reference to member for being routed through
Through connecting the camera module to perform the work such as driving, control, information transfer by the support 10 after part 20.
It is noted that being arranged at the camera module of the support 10, also it is able to do not assembling wired electricity
The field of view angle for obtaining the camera module is tested in the case of source, camera module is come with for its work as described
Portable power source needed for making.Skilled person should be understood that the support 10 is not limited to be carried out
For single footrest A seating support in the present embodiment, in practical application, can also be implemented as it is movable or fixed outstanding
The utensils such as arm, scalable and rotation auto heterodyne frame, above-mentioned circuit can not also be connected to by the support 10
The camera module.In addition, in actual applications, the support 10 can also from front, top, side,
Oblique angle extends or suspended in midair, so that the camera module directly or is adjustably fixed on finger by the fixator
Positioning is put.
The reference element 20 includes one first target 21, the target 23,1 of one second target 22,1 the 3rd the
Four targets 24 and one the 5th target 25, above-mentioned five marks version to form the reference element 20 by being disposed adjacently
Accommodating chamber, the support 10 is arranged at the accommodating chamber of the reference element 20 with fixation, the regulation shooting
Module is in the relative position of the accommodating chamber of the reference element 20, the angle of visual field for measuring the camera module
Degree.First target 21, second target 22, the 3rd target 23, the 4th target 24
And the one side of the 5th target 25 is with two dimension sign, and the matching that mutually can be connected two-by-two is to form
State reference element 20, and it is first target 21, second target 22, the 3rd target 23, described
The one side of 4th target 24 and the 5th target 25 with two-dimensional coordinate may be contained within the reference element 20
Accommodating chamber in.Wherein, the central optical axis of the camera module are perpendicular to first target 21, described
One of two targets 22, the 3rd target 23, the 4th target 24 and described 5th target 25, at this
In preferred embodiment, so that the central optical axis of the camera module are perpendicular to first target 21 as an example.It is described
Second target 22, the 3rd target 23, the 4th target 24 and the 5th target 25 hang down respectively
Direct-connected one side for being connected to first target 21, so that being collectively forming one with first target 21 lacks one
The cover body of the box in face.Wherein, the support 10 is arranged at the coordinate central point of the 5th target 25, institute
The coordinate central point for stating the second target 22 is directed at fiveth target 25 parallel with second target 22
Coordinate central point, the coordinate central point of the 3rd target 23 is aligned parallel with the 3rd target 23 described
The coordinate central point of 4th target 24.The central optical axis and camera lens of acceptance test or the camera module of measurement
The central point crossed is through the position of the fixed mount 11 and the multidirectional connecting element for adjusting the support 10
12 angles and/or length, are sitting at the coordinate central point and the 5th target 25 of second target 22
The coordinate central point of dummy line and the 3rd target 23 between coordinate central point and the 4th target 24
The accommodating chamber of the position that dummy line between coordinate central point crosses, in other words namely described reference element 20
Three-dimensional center position.
As shown in Fig. 2 the side of first target 21 has at least one first two dimension sign 211, for court
To the support 10, so as to be shot for the camera module so as to by described in the photo or image statistics taken the photograph
The angle of visual field of camera module.Similarly, second target 22, the 3rd target 23, the 4th mark
The side of plate 24 and the 5th target 25 then each has at least one second two dimension sign 221, at least 1 the
The two dimension sign 241 of three two dimension sign 231, at least one the 4th and at least one the 5th two dimension 251 (not shown) of sign,
That is, the cavity wall that the appearance of the reference element 20 is chamber shows at least five two dimension signs, and it is each described
Two dimension sign is all towards the support 10, to coordinate or be shot jointly for the camera module so as to by taking the photograph
The angle of visual field of camera module described in the photo or image statistics obtained.In the preferred embodiment, the camera module
Central optical axis perpendicular to described first two dimension sign 211.Skilled person should be understood that at this
The first two dimension sign 211 is implemented as pattern as shown in Figure 2 described in embodiment, and other two dimension signs also have
There is same pattern, but in practical application, the pattern can not be as limitation of the present invention, described first marks
Plate 21, second target 22, the 3rd target 23, the 4th target 24 and the 5th target
25 can also each or possess jointly with Fig. 2 it is identical or different two dimension indicate, the grid of such as diagonal cross,
Equidistantly colour round dot/site, spectrogram, concentric circles and other can help to demarcate and recognize range distance
Figure or sign etc..
As shown in figure 1, being imaged according to the utilization space measurement of coordinates of first preferred embodiment of the present invention
Need first to be arranged at the tested camera module by the fixator 13 when the device 1 of module visual field is used
On the support 10, the camera module group lens are made to be directed at the central point of first target 21, the shooting
Module group lens are sitting at second target 22, the 3rd target 23, the 4th target 24 and described
The central point of 5th target 25 intersection each other.The later on light source 30, and clapped using the camera module
According to or photography.Wherein described light source 30 can keep state that is luminous or introducing light at any time, can also be in
Opened in advance before shooting, and keep it turned on to shooting and finish, or can also taken the photograph with the camera module
As action gearing, that is, synchronization flash.In addition, not every kind of camera module is required for using the light
Source 30, for seeming to carry the camera module of flasher or be enough to sense the institute of the reference element 20
Stating camera module all can be without the light source 30.
In addition, those skilled in the art should be understood that the reference element 20 except being implemented as five
Face the wall and meditate beyond the semi open model box cover body of body or the hexahedron of rectangle, other forms, example can also be implemented as
As Fig. 6 semi-enclosed or totally enclosed type is spherical or other seem polygonal, ellipse, elbow-shaped, top
Box with small opening etc., can realize same or like effect.
Further, after the camera module is shot, the diagonal on image data or photo taken the photograph by it
2 points of coordinates for photographing in the reference element 20, in different situations can according to following different formula
Calculate the angle of visual field (Field of View, FOV) size of the tested camera module.Wherein make the image taken the photograph
The most upper left corner be point A, last cell be point B.The reference element 20 according to being photographed in image can
To obtain point A coordinate (x, y, z) and point B coordinate (x', y', z').If the visual field of the tested camera module
Angle (FOV) is less than 180 °, may have two kinds of situations, one is the angle of visual field is smaller, therefore the scope taken the photograph is complete
Fall in first target 21, as shown in Figure 3；Second it be that the scope taken the photograph exceeds first target
21, but because its angle of visual field is less than 180 °, therefore its scope taken the photograph must be not over the camera module
Position, that is, without departing from second target 22, the 3rd target 23, the 4th target 24,
And the scope of the sidepiece coil structure of cover body that the 5th target 25 is formed, as shown in Figure 4.In this way,
The all applicable following equation of both the above situation counts the angle of visual field.
Wherein, the coordinate that the camera module provided position corresponds in the reference element 20 is original
Point O, thus directly by two diagonal coordinates through arctan function count, you can utilization its coordinate with table
Three-dimensional distance relative to origin O, recycles the distance to count and extends to described with origin O
When the line of the central point of one target 21 is as 0 degree, its be respectively to point A and point the B angle opened respectively it is how many,
Two angles, which are added, again can obtain the angle for being equal to the camera module angle of visual field.
Relatively, when the angle of visual field (FOV) of the tested camera module is more than or equal to 180, the model taken the photograph
It is trapped among second target 22, the 3rd target 23, the 4th target 24 and the 5th target 25
The scope of the sidepiece coil structure of the cover body formed, as shown in Figure 5.Either above-mentioned whichever, it counts former
Reason is identical with the preceding paragraph, that is, still utilizes point A and point B seat in turn simply by arctan function
Three-dimensional distance that mark is represented and origin O counts its correspondence origin O respectively, that is, this tested described is taken the photograph
Then it can still be obtained equal to the shooting as the angle that the camera lens centre of surface point of module opens, then by the addition of two angles
The angle value of the module angle of visual field (FOV).But the coordinate of the coordinate (x, y, z) and point B because of this time point A (x', y',
Z' the numerical value of z-axis) is less than or equal to 0, therefore uses following equation, eliminates its negative value, reverse directions and keeps away
It is zero to exempt from denominator, and statistics comes from 180 ° of angles of visual field extra angle of visual field backward, along with 180 ° it is i.e. available
The angle of visual field of the camera module.
It is noted that skilled person should be understood that the above-mentioned reference element with rectangle
20, coordinating by the camera lens of the camera module of side or will be considered as the central point of angle of visual field origin benchmark and is arranged at institute
The corresponding origin of reference element 20 is stated, then it is simple through the arctan function acquisition camera module pair
The angle and the mode of addition that two angle steel joint visual fields are opened are only for example, the scope being not intended to limit the present invention.In reality
In the application of border, the shape of the reference element 20 and its two dimension sign towards the camera module, as described
First two dimension sign 211, sign content and method can be needed according to different uses adjust, it is described to take the photograph
As the position of the module correspondence reference element 20 or its two dimension sign is also not necessarily limited to be arranged at origin, wherein not
Same set location, different signs and different shapes of the reference element 20 etc. also can be through changes
Indicate corresponding numerical value and/or statistical formula or its constant etc. and be subject to correspondence, the camera module is measured to realize
The effect of the angle of visual field.In other words, the device 1 of camera module visual field described in utilization space measurement of coordinates of the invention
It can also pass through and possess the reference element 20 of different shape or sign to realize, and general can also be passed through
The tested camera module is placed in the diverse location of the reference element 20 to realize, wherein seeming shown in Fig. 6
According to the present invention second preferred embodiment utilization space measurement of coordinates described in camera module visual field dress
1' is put, comprising spherical reference element 20', reference element 20' has a lid 202' and is located towards institute respectively
State the netted two dimension sign 203' of camera module side.
Furthermore, the method that the present invention also provides camera module visual field described in a utilization space measurement of coordinates, the side
Method is comprised the following steps based on the device 1 of camera module visual field described in above-mentioned utilization space measurement of coordinates：
S101：The camera module is set in the support 10, wherein, the support 10 is located at the reference
The center of the accommodating chamber of element 20；
S102：The image inside the accommodating chamber of the reference element 20 is absorbed by the camera module；And
S103：The image information absorbed according to the camera module counts the angle of visual field angle value of the camera module,
Wherein, the receiving cavity wall of the reference element has at least five two dimension signs, is arranged at the support
10 camera module is indicated towards two dimension at least described in one.
Also comprise the following steps before step S101：Using the three-dimensional center of the accommodating chamber of the reference element 20 as
Origin sets up the three-dimensional system of coordinate.
Step S103 further comprises following steps：
S103.1：The described image information captured by the camera module is read, wherein, described image information is
The coordinate value on two summits of image diagonal, two summits are defined as point A (x, y, z) and point B (x', y', z')；
S103.2：Judge whether the camera module angle of visual field is less than 180 °, if so, step 103.3 is then performed,
If it is not, then performing step S103.4；
S103.3：Utilize formula
Count the visual field of the camera module
Angle value；And
S103.4：Utilize formulaCount the visual field of the camera module
Angle value, wherein, in step S103.3, the camera module is able to take the photograph to obtain at least one two dimension sign, i.e.,
In the preferred embodiment, the camera module be able to take the photograph the reference element 20 at least one mark version, step
In rapid S103.4, the camera module is able to take the photograph to obtain multiple two dimension signs, now, point A coordinate (x, y, z)
And the numerical value of the z-axis of point B coordinate (x', y', z') is less than or equal to 0.
It should be understood by those skilled in the art that the embodiments of the invention shown in foregoing description and accompanying drawing are only used as
Illustrate and be not intended to limit the present invention.The purpose of the present invention completely and is effectively realized.The present invention function and
Structural principle shows and illustrated in embodiment, under without departing from the principle, embodiments of the present invention
Can there are any deformation or modification.
Claims (11)
1. the method for a utilization space measurement of coordinates camera module visual field, it is characterised in that including step：
(a) camera module is set in a support, wherein, the support is located at the center of the accommodating chamber of reference element；
(b) image inside the accommodating chamber of the reference element is absorbed by the camera module；And
(c) image information absorbed according to the camera module counts the angle of visual field angle value of the camera module, wherein, institute
State reference element and accommodate cavity wall with least five two dimension signs, there is at least one institute in the image that the camera module is shot
The information of two-dimentional sign is stated, the camera module for being arranged at the support is indicated towards two dimension at least described in one.
2. also comprise the following steps before the method as described in claim 1, step (a)：With the appearance of the reference element
The three-dimensional center of chamber received sets up three-dimensional system of coordinate for origin.
3. method as claimed in claim 2, step (c) further comprises following steps：
(c.1) image information for accommodating cavity wall of the reference element captured by the camera module is read, wherein,
Described image information is the coordinate value on two summits of image diagonal, and two summits are defined as point A (x, y, z) and point
B(x',y',z')；
(c.2) judge whether the camera module angle of visual field is less than 180 °, if so, step (c.3) is then performed, if it is not,
Then perform step (c.4)；
(c.3) formula is utilized
Count the angle of visual field angle value of the camera module；
And
(c.4) formula is utilized
Count the angle of visual field angle value of the camera module.
4. method as claimed in claim 3, wherein, in step (c.3), have in the image that the camera module is shot
There is two dimension sign at least described in one, the camera module is just indicated to two dimension wherein described in one.
5. method as claimed in claim 3, wherein, in step (c.4), have in the image that the camera module is shot
There are multiple two dimension signs, the camera module is just indicated to two dimension wherein described in one.
6. method as claimed in claim 3, wherein, the image that step (c.2) is shot according to the camera module judges
Whether the angle of visual field of the camera module is more than 180 °.
7. the device of a utilization space measurement of coordinates camera module visual field, the angle of visual field angle value for measuring camera module, its
It is characterised by, including：
One support, for fixed camera module at least described in one；With
One reference element, the support is placed in the accommodating chamber of the reference element formation, the receiving of the reference element
Cavity wall has at least one two dimension sign, the receiving cavity wall of the reference element by analyzing the camera module shooting
Image information can obtain the angle of visual field angle value of the camera module, wherein, have at least in the image of the camera module intake
Two dimension sign described in one.
8. the device of utilization space measurement of coordinates camera module visual field as claimed in claim 7, wherein, it is described with reference to member
Part further comprises one first target, one second target, one the 3rd target, one the 4th target and one the 5th target, respectively phase
Set adjacently with formed the accommodating chamber of the reference element in described first mark version, the second mark version, the 3rd mark version,
It is described 4th mark version and it is described 5th mark version between, meanwhile, it is described first mark version, it is described second mark version, it is described 3rd mark version,
Described 4th marks version and the 5th mark version as the cavity wall of the accommodating chamber of the reference element, wherein, the first mark version,
The second mark version, the 3rd mark version, the 4th mark version and the 5th mark version have at least one first two dimension mark respectively
Show, at least one second two dimension sign, at least one the 3rd two dimension sign, at least one the 4th two dimension sign and at least one the 5th two dimension
Sign so that the receiving cavity wall of the reference element has two dimension sign at least described in five.
9. the device of utilization space measurement of coordinates camera module visual field as claimed in claim 8, is fixed in the support
The camera module central optical axis perpendicular to described first two dimension sign, it is described second two dimension sign, it is described 3rd two dimension
One of sign, the 4th two dimension sign and described 5th two dimension sign.
10. the device of any utilization space measurement of coordinates camera module visual field as described in claim 7-9 is any, described to take the photograph
As module is placed in the three-dimensional center of the accommodating chamber of the reference element.
11. the device of the utilization space measurement of coordinates camera module visual field as claimed in claim 10, further comprises
One light source, is arranged at the support rear portion, and the direction of the camera module with being arranged at the support is consistent, with
The camera module is supported to shoot the image of the inwall of the reference element.
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Application publication date: 20171031 |