CN2901734Y - Caliberating board of camera caliberating data - Google Patents
Caliberating board of camera caliberating data Download PDFInfo
- Publication number
- CN2901734Y CN2901734Y CN 200620068565 CN200620068565U CN2901734Y CN 2901734 Y CN2901734 Y CN 2901734Y CN 200620068565 CN200620068565 CN 200620068565 CN 200620068565 U CN200620068565 U CN 200620068565U CN 2901734 Y CN2901734 Y CN 2901734Y
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- CN
- China
- Prior art keywords
- round dot
- dots
- scaling board
- sign
- characteristic indication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model discloses a calibration plate used to get the camera rating data, comprising a main plate of the calibration plate on which indication dots are arranged in array, wherein the five dots of the indication dots are characteristic indication dots the diameters of which are greater than that of the other ones, and one of the five dots is the reference characteristic indication dot, more over, the distance between the reference characteristic indication dot and any of the other characteristic indication dots is wider than the distance between any two characteristic indication dots, and the mutual angle between lines through the reference characteristic indication dot and any of the indication dots are all greater than 3 degrees. The utility model is simply manufactured and has satisfying versatility as well as simplicity of operator.
Description
Technical field
The utility model relates to a kind of scaling board that obtains the camera calibration data.
Background technology
One of basic task of computer vision is taken the image that obtains from video camera, calculates the three-dimensional information of object in the visual field, comes thus three-dimensional body is rebuild and discerned.The three-dimensional geometric information of body surface point and its correlation between the respective point on the image are that the process of setting up this geometrical model is actual to be exactly the solution procedure of camera parameters by the decision of the imaging model of video camera.Therefore, the demarcation to camera parameters is the prerequisite and the key of this modeling process.Some calibration algorithm requires part or all of index point to satisfy certain location relation, for example, conllinear, coplane is parallel to each other between line and the line, rectangular trapezoidal or concentric circles distribution etc.How to provide these index points, and to match corresponding position relation automatically be a difficult point during this type of is used at present.
Summary of the invention
The utility model provides a kind of scaling board of the camera calibration data of making simple, highly versatile and simplifying the operation.
The utility model adopts following technical scheme:
A kind of scaling board that is used for the camera calibration data, it comprises the scaling board plate, be provided with on the scaling board plate sign round dot and this sign round dot on the scaling board plate by array distribution, it is the characteristic indication round dot that 5 sign round dots are arranged in the sign round dot, its diameter indicates round dot greater than all the other, in 5 characteristic indication circles, there is 1 to be with reference to property characteristic indication round dot, this with reference to property characteristic indication round dot to the distance of further feature sign round dot greater than the distance between any two characteristic indication round dots and should be with reference to line line angle each other of property characteristic indication circle and other sign circle greater than 3 degree, wherein the scaling board plate is a blackboard, and the sign round dot is white filled circles.
Compared with prior art, the utlity model has following advantage:
(1) making of scaling board is simple, generally speaking, can directly adopt printer prints scaling board design drawing to get final product, and according to the spacing between the pixel pitch calculating calibration point, comes the object coordinates of calculation flag point with this then.
(2) these index points can freely form different shapes, have the calibration algorithm of specific position requirement to be suitable for too for the overwhelming majority to index point, so this scaling board have very strong versatility.
(3) simplify the operation,, take the scaling board image and get final product, when scaling board is arranged in the visual field of a plurality of video cameras simultaneously, a plurality of video cameras can be unified under the same world coordinate system as long as after scaling board put into camera field of view.
Description of drawings
Fig. 1 is the structural representation of scaling board.
Embodiment
Embodiment 1
A kind of scaling board that is used for the camera calibration data, it comprises scaling board plate 1, be provided with on the scaling board plate 1 sign round dot 2 and this sign round dot 2 on scaling board plate 1 by array distribution, it is the characteristic indication round dot that 5 sign round dots are arranged in sign round dot 2, its diameter is greater than all the other sign round dots 2, in 5 characteristic indications circle, have 1 for reference to property characteristic indication round dot, this with reference to property characteristic indication round dot to the distance of further feature sign round dot greater than the distance between any two characteristic indication round dots and should be with reference to line line angle each other of property characteristic indication circle and other sign circle greater than 3 degree.Wherein scaling board plate 1 is a blackboard, and sign round dot 2 is white filled circles.
Structural representation Fig. 1 of above-mentioned scaling board.The lily filled circles of array distribution round dot as a token of on the plate is in order to strengthen comparative, with ater color as a setting.Generally speaking, can print this figure, obtain dot spacing by printer parameter and get final product with laser printer; For the higher application scenario of precision, then dot spacing needs accurately to measure in advance.It can also be seen that from figure be distributed with five round dots that radius is bigger on the plate, this mainly is the array coordinate for the ease of correct coupling round dot.
Claims (2)
1, a kind of scaling board that is used for the camera calibration data, it is characterized in that comprising scaling board plate (1), being provided with sign round dot (2) and this sign round dot (2) on scaling board plate (1) goes up by array distribution at scaling board plate (1), it is the characteristic indication round dot that 5 sign round dots are arranged in sign round dot (2), its diameter indicates round dot (2) greater than all the other, in 5 characteristic indications circle, have 1 for reference to property characteristic indication round dot, this with reference to property characteristic indication round dot to the distance of further feature sign round dot greater than the distance between any two characteristic indication round dots and should be with reference to line line angle each other of property characteristic indication circle and other sign circle greater than 3 degree.
2, a kind of scaling board that is used for the camera calibration data according to claim 1 is characterized in that scaling board plate (1) is a blackboard, and sign round dot (2) is white filled circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068565 CN2901734Y (en) | 2006-01-17 | 2006-01-17 | Caliberating board of camera caliberating data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068565 CN2901734Y (en) | 2006-01-17 | 2006-01-17 | Caliberating board of camera caliberating data |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2901734Y true CN2901734Y (en) | 2007-05-16 |
Family
ID=38085898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068565 Expired - Lifetime CN2901734Y (en) | 2006-01-17 | 2006-01-17 | Caliberating board of camera caliberating data |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2901734Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384220C (en) * | 2006-01-17 | 2008-04-23 | 东南大学 | Video camera rating data collecting method and its rating plate |
| CN101303768B (en) * | 2008-06-17 | 2010-06-23 | 东南大学 | Method for correcting circle center error of circular index point when translating camera perspective projection |
| CN103065519A (en) * | 2012-12-28 | 2013-04-24 | 苏州苏迪智能***有限公司 | Detecting system of ramp fixed point stopping and starting and detecting method of ramp fixed point stopping and starting |
| CN103065520A (en) * | 2012-12-28 | 2013-04-24 | 苏州苏迪智能***有限公司 | Detection system for backing car into storage and detection method thereof |
| CN103697907A (en) * | 2012-09-28 | 2014-04-02 | 北京航天计量测试技术研究所 | High-precision calibration plate for camera parameter calibration and manufacturing method thereof |
-
2006
- 2006-01-17 CN CN 200620068565 patent/CN2901734Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384220C (en) * | 2006-01-17 | 2008-04-23 | 东南大学 | Video camera rating data collecting method and its rating plate |
| CN101303768B (en) * | 2008-06-17 | 2010-06-23 | 东南大学 | Method for correcting circle center error of circular index point when translating camera perspective projection |
| CN103697907A (en) * | 2012-09-28 | 2014-04-02 | 北京航天计量测试技术研究所 | High-precision calibration plate for camera parameter calibration and manufacturing method thereof |
| CN103697907B (en) * | 2012-09-28 | 2016-11-23 | 北京航天计量测试技术研究所 | A kind of high-precision calibrating plate for camera parameter demarcation and preparation method thereof |
| CN103065519A (en) * | 2012-12-28 | 2013-04-24 | 苏州苏迪智能***有限公司 | Detecting system of ramp fixed point stopping and starting and detecting method of ramp fixed point stopping and starting |
| CN103065520A (en) * | 2012-12-28 | 2013-04-24 | 苏州苏迪智能***有限公司 | Detection system for backing car into storage and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080423 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |