CN204301746U - A kind of three-dimensional calibration device based on orienting reflex ball - Google Patents
A kind of three-dimensional calibration device based on orienting reflex ball Download PDFInfo
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- CN204301746U CN204301746U CN201420677866.1U CN201420677866U CN204301746U CN 204301746 U CN204301746 U CN 204301746U CN 201420677866 U CN201420677866 U CN 201420677866U CN 204301746 U CN204301746 U CN 204301746U
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Abstract
The utility model belongs to metrological testing technology field, is specifically related to a kind of three-dimensional calibration device based on orienting reflex ball, and object solves the few problem of prior art or complex operation or demarcation information.It is characterized in that: it comprises basic framework (1), target position supporting construction (3), reflection sphere target position (3) and orienting reflex ball (4); Wherein, basic framework (1) is square framework or hexahedron framework; Target position supporting construction (2), for shaft-like, is arranged on the top of basic framework (1) and leading flank and left surface; Reflection sphere target position (3) for metal shaft-like, be arranged on the node of the top of the basic framework (1) after installing target position supporting construction (2) additional, leading flank and left surface; Orienting reflex ball (4) surface is retroreflecting material, is arranged on reflection sphere target position (3).The utility model quality is light, structural stability good, size is large, and to installation site, each point position without strict demand, is easy to realize.
Description
Technical field
The utility model belongs to metrological testing technology field, is specifically related to a kind of three-dimensional calibration device based on orienting reflex ball.
Background technology
Photogrammetricly refer to two width according to different angles shooting or multiple image, obtain the method for object dimensional geological information in scene, have simple, reliable, flexibly, the feature such as the scope of application is wide.More and more wider in the application of metrology and measurement field, be widely used in a lot of fields such as industry monitoring, object identification, robot bootstrap, space flight, aviation and military management at present.Camera calibration is position, property parameters in order to determine video camera and sets up imaging model, to determine that object point in space coordinates is with its corresponding relation on the image plane between picture point, is basis and the prerequisite of photogrammetric work.
At present, for camera parameter demarcate main to demarcate bar and scaling board, method roughly has: adopt plane target to calibrate, and usually needs the auxiliary body of precision as one dimension guide rail etc., complex operation; Adopt the scaling method of reference bar, need continuous mobile reference bar in calibration process.These methods are mostly a peacekeeping two-dimensional calibrations, relatively convenient, flexible, but the information of demarcation is less.
Summary of the invention
The purpose of this utility model solves the few problem of prior art or complex operation or demarcation information, provides a kind of three-dimensional calibration device based on orienting reflex ball.
The utility model is achieved in that
Based on a three-dimensional calibration device for orienting reflex ball, it comprises basic framework, target position supporting construction, reflection sphere target position and orienting reflex ball; Wherein, basic framework is square framework or hexahedron framework; Target position supporting construction is shaft-like, is arranged on the top of basic framework and leading flank and left surface; Reflection sphere target position is shaft-like, is arranged on the node of the top of the basic framework after installing target position supporting construction additional, leading flank and left surface; Orienting reflex ball surface is retroreflecting material, is arranged on reflection sphere target position.
Target position supporting construction as above is that the metal equal with the basic framework length of side is shaft-like, it is arranged on basic framework top, leading flank and left surface respectively, and two ends and middle part are separately fixed in the top of basic framework, the both sides of leading flank and left surface and middle bracket.
Node as above refers to that on basic framework, rod-like structure intersects part.
Basic framework as above, target position supporting construction and reflection sphere target position adopt carbon fiber or make with the lightweight metal material that environmental change malformation is less.
Orienting reflex ball as above adopts metal ball or devitrified glass to realize.
Orienting reflex ball surface as above is retroreflecting material.
Orienting reflex ball sphericity as above is not more than 0.1mm.
Outside basic framework as above, barrier material is installed.
Barrier material as above selects the light basis weight material of black.
Light basis weight material as above is film, paper or light sheet.
The beneficial effects of the utility model are:
The utility model adopts basic framework 1, target position supporting construction 2, reflection sphere target position 3 and orienting reflex ball 4, the three-dimensional calibration device made has the features such as quality is light, structural stability good, size is large, and to installation site, each point position without strict demand, be easy to realize.Described caliberating device can be used in photogrammetric three-dimensional scaling, relative to traditional scaling board, demarcate bar have speed fast, contain much information, degree of accuracy high.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of three-dimensional calibration device based on orienting reflex ball of utility model;
Fig. 2 is the structural representation of basic framework in Fig. 1;
Fig. 3 is the structural representation of basic framework and target position supporting construction in Fig. 1;
Fig. 4 is the structural representation of basic framework in Fig. 1, target position supporting construction and reflection sphere target position 3;
In figure: 1. basic framework, 2. target position supporting construction, 3. reflection sphere target position, 4. orienting reflex ball.
Detailed description of the invention
Below in conjunction with drawings and Examples, a kind of three-dimensional calibration device based on orienting reflex ball of the present utility model is introduced:
As Figure 1-4, a kind of three-dimensional calibration device based on orienting reflex ball, comprises basic framework 1, target position supporting construction 2, reflection sphere target position 3 and orienting reflex ball 4.Wherein, basic framework 1 is square framework or hexahedron framework, with square or adjacent three faces of rectangle for work installed surface.Target position supporting construction 2 is that metal is shaft-like, and it is arranged on the top of basic framework 1 and leading flank and left surface.In the present embodiment, target position supporting construction 2 is equal with basic framework 1 length of side shaft-like, it is arranged on basic framework 1 top, leading flank and left surface respectively, and two ends and middle part are separately fixed in the top of basic framework 1, the both sides of leading flank and left surface and middle bracket.Reflection sphere target position 3 is shaft-like, it be arranged on and install target position supporting construction 2 additional after the top of basic framework 1, leading flank and left surface node on, node herein refers to that on basic framework 1, rod-like structure intersects part.In the present embodiment, the good material of choice structure stability makes basic framework 1, target position supporting construction 2 and reflection sphere target position 3, generally selects carbon fiber or with the less lightweight metal material of environmental change malformation.Orienting reflex ball 4 surface is retroreflecting material, and it is arranged on reflection sphere target position 3.Orienting reflex ball 4 can select metal ball or devitrified glass to realize, and sphericity is not more than 0.1mm.Outside basic framework 1, barrier material is installed after orienting reflex ball 4 is installed, generally selects the light basis weight material of black, in order to avoid the ball of each working face disturbs mutually.Described light basis weight material is film, paper or light sheet.
During use, be numbered, and use three coordinate measuring machine to calibrate to each orienting reflex ball 4, each orienting reflex ball 4 is adopted and is a little no less than 25; Do reliability test, do more than 3 replica tests and repeatability test, it is qualified that error in point measurement is not higher than designing requirement.
The utility model adopts basic framework 1, target position supporting construction 3, reflection sphere target position 3 and orienting reflex ball 4, the three-dimensional calibration device made has the features such as quality is light, structural stability good, size is large, and to installation site, each point position without strict demand, be easy to realize.Described caliberating device can be used in photogrammetric three-dimensional scaling, relative to traditional scaling board, demarcate bar have speed fast, contain much information, degree of accuracy high.
Claims (10)
1. based on a three-dimensional calibration device for orienting reflex ball, it is characterized in that: it comprises basic framework (1), target position supporting construction (2), reflection sphere target position (3) and orienting reflex ball (4); Wherein, basic framework (1) is square framework or hexahedron framework; Target position supporting construction (2), for shaft-like, is arranged on the top of basic framework (1) and leading flank and left surface; Reflection sphere target position (3), for shaft-like, is arranged on the node of the top of the basic framework (1) after installing target position supporting construction (2) additional, leading flank and left surface; Orienting reflex ball (4) is arranged on reflection sphere target position (3).
2. a kind of three-dimensional calibration device based on orienting reflex ball according to claim 1 is characterized in that: described target position supporting construction (2) is for equal with basic framework (1) length of side shaft-like, it is arranged on basic framework (1) top, leading flank and left surface respectively, and two ends and middle part are separately fixed in the top of basic framework (1), the both sides of leading flank and left surface and middle bracket.
3. a kind of three-dimensional calibration device based on orienting reflex ball according to claim 2, is characterized in that: described node refers to that the upper rod-like structure of basic framework (1) intersects part.
4. a kind of three-dimensional calibration device based on orienting reflex ball according to claim 1, is characterized in that: described basic framework (1), target position supporting construction (2) and reflection sphere target position (3) adopt carbon fiber or make with the lightweight metal material that environmental change malformation is less.
5. a kind of three-dimensional calibration device based on orienting reflex ball according to claim 1, is characterized in that: described orienting reflex ball (4) adopts metal ball or devitrified glass to realize.
6. a kind of three-dimensional calibration device based on orienting reflex ball according to claim 1, is characterized in that: described orienting reflex ball (4) surface is retroreflecting material.
7. a kind of three-dimensional calibration device based on orienting reflex ball according to claim 5 or 6, is characterized in that: described orienting reflex ball (4) sphericity is not more than 0.1mm.
8. a kind of three-dimensional calibration device based on orienting reflex ball according to claim 1, is characterized in that: barrier material is installed in described basic framework (1) outside.
9. a kind of three-dimensional calibration device based on orienting reflex ball according to claim 8, is characterized in that: described barrier material selects the light basis weight material of black.
10. a kind of three-dimensional calibration device based on orienting reflex ball according to claim 9, is characterized in that: described light basis weight material is film, paper or light sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420677866.1U CN204301746U (en) | 2014-11-13 | 2014-11-13 | A kind of three-dimensional calibration device based on orienting reflex ball |
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| CN201420677866.1U CN204301746U (en) | 2014-11-13 | 2014-11-13 | A kind of three-dimensional calibration device based on orienting reflex ball |
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| CN204301746U true CN204301746U (en) | 2015-04-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243285A (en) * | 2019-06-26 | 2019-09-17 | 华中科技大学 | A kind of caliberating device for vision measurement system |
| CN110702004A (en) * | 2019-09-23 | 2020-01-17 | 深圳市智信精密仪器有限公司 | Calibration block design and inspection method for high-precision calibration splicing of multiple line lasers |
-
2014
- 2014-11-13 CN CN201420677866.1U patent/CN204301746U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243285A (en) * | 2019-06-26 | 2019-09-17 | 华中科技大学 | A kind of caliberating device for vision measurement system |
| CN110702004A (en) * | 2019-09-23 | 2020-01-17 | 深圳市智信精密仪器有限公司 | Calibration block design and inspection method for high-precision calibration splicing of multiple line lasers |
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