CN103369346A - Calibration method of dynamic imaging line-scanning camera - Google Patents
Calibration method of dynamic imaging line-scanning camera Download PDFInfo
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Abstract
The invention relates to an auxiliary imaging technology in the field of machine vision detection, and particularly relates to a calibration method of a dynamic imaging line-scanning camera. The method comprises the steps that a line-scanning camera calibration auxiliary device is placed at a position where a line-scanning camera to be imaged; a roller (2) is enabled to be tangent to a shot plane (5) of a shot object, and the tangent line is a camera imaging plane; a piece of paper with a graduation identifier or pattern is adhered to the outer surface of the circumference of the roller, a power rotating mechanism (1) is started to drive the roller to rotate, and the line-scanning camera (7) aligns to a roller bus to form an image; the roller bus, a camera and a light source (6) are matched to form an imaging angle; the camera forms an image under the conditions of the preset exposure time and acquisition speed parameters; the rotating speed of the roller is adjusted so as to be matched with the image acquisition speed to obtain the set imaging resolution; the line-scanning camera shoots the pattern on the circumference of the roller into continuous visual images; a camera lens is adjusted gradually, and the imaging contrast and the definition of the line-scanning camera are observed until a clear image is acquired.
Description
Technical field
The present invention relates to the Machine Vision Detection field, relate in particular to a kind of a kind of householder method of adjusting based on camera focus and position in the line scan camera imaging.
Background technology
Line scan camera is widely used in the continuous band imaging field, has the advantages such as suitable high-speed image sampling, photosensitive property are good, high-resolution.Line scan camera in use, the problem of adjusting the camera blur-free imaging perplexs its smooth application always.To there be relative motion between subject and the camera when image-forming principle of line scan camera requires camera imaging, and only has the movement velocity of subject and image taking speed under the condition of mutual coupling, just can obtain clear, equal even stable image.
Usually the demarcation of line scan camera by camera to stationary body imaging finish, there is the obvious border of luminance difference on the stationary body, the definition of the border imaging that contrast difference is larger in the image that adjustment camera and observation post gather, judge whether camera adjusts to optimum state, be about to the imaging object distance and adjusted to zone of reasonableness.Chinese patent 200810167595.4 and 200710047426.2 all is realization and application of this thought.The method to a certain extent can only be more rough observation camera imaging effect clearly, and be difficult to realize the accurate adjustment of camera.
Summary of the invention
The object of the present invention is to provide a kind of dynamic imaging line scan camera scaling method, the method is come the imaging of boost line scanning camera with the relative motion of simulation continuous band, determines by seeing intuitively image effect whether line scan camera adjusts to optimum state.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of dynamic imaging line scan camera scaling method the steps include:
The first, line scan camera is demarcated servicing unit be placed on line scan camera position to be imaged; Described camera position to be imaged refers to the service position of camera when normal operation camera, in this position camera, light source and the subject formation imaging angle that is complementary; Described line scan camera is demarcated servicing unit and is comprised: dynamic rotation mechanism, cylinder, support and encoder, cylinder is installed on two side stands, dynamic rotation mechanism drives drum rotating, and encoder is installed in the rotating shaft that cylinder rotates, and dynamic rotation mechanism possesses speed-regulating function;
The second, the plane that is taken of cylinder and subject is tangent, and the tangent line on cylinder and this plane is the camera imaging face;
The 3rd, stick paper with scale marker or pattern at the roll circumference outer surface, start dynamic rotation mechanism and drive drum rotating, the imaging of line scan camera aligns with drum bus; Described cylinder bus is as the plane that is taken of subject, and being complementary with camera, light source consists of the imaging angle; The normal operation of inspection light source, camera imaging under default time for exposure and picking rate Parameter Conditions;
The 4th, rotary speed and the IMAQ speeds match of adjustment cylinder obtain set imaging resolution;
The 5th, by the relative motion of cylinder, line scan camera gathers dynamic image, and the pattern on the roll circumference is taken into continuous visual image;
The 6th, regulate gradually camera lens, the image contrast of line of observation scanning camera and definition, until collect clearly till the image, then line scan camera is demarcated complete.
Further, export described line scan camera and demarcate the speed pulse signal that the encoder of servicing unit gathers, be used for triggering line scan camera and gather image, realize that the IMAQ speed of camera and the rotary speed of cylinder are complementary.
Further, for a plurality of line scan cameras, after the imaging definition of adjusting respectively camera, line scan camera is demarcated within the visual field that servicing unit places two adjacent cameras, can there be the overlapping region during two camera imagings, observe and the measuring and calculating overlapping region, adjust the spacing between the camera.
The present invention is by the subject relative motion under the Reality simulation camera imaging condition, realize line scan camera effectively, dynamic image acquisition intuitively; The definition of adjusting camera lens and observing image is finished the definition of single camera and is demarcated.In the occasion of a plurality of camera applications, adjust respectively after the imaging definition of single camera, demarcate servicing unit by line scan camera, the spacing between the adjacent cameras is adjusted, finally finish the calibration process of camera.
The present invention comes the imaging of boost line scanning camera with the relative motion of simulation continuous band, determines by seeing intuitively image effect whether line scan camera adjusts to optimum state.
The present invention is applicable to various low speed and the high-speed applications that line-scan digital camera is used.
Description of drawings
Fig. 1 is that line scan camera is demarcated servicing unit application schematic diagram;
Fig. 2 is that schematic diagram is looked on the right side of Fig. 1;
Fig. 3 is adjacent cameras overlapping region schematic diagram.
Among the figure: 1 dynamic rotation mechanism, 2 cylinders, 3 supports, 4 encoders, 5 virtual bands (plane is taken), 6 light sources, 7 line scan cameras (camera).
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
A kind of dynamic imaging line scan camera scaling method, described scaling method refer to that line scan camera is by demarcating the servicing unit imaging, the process of finish the adjustment of single camera image definition and adjacent cameras spacing, fixing.
A kind of dynamic imaging line scan camera scaling method referring to Fig. 1, Fig. 2, the steps include:
The first, line scan camera is demarcated servicing unit be placed on line scan camera position to be imaged.
Described camera position to be imaged refers to the service position of camera when normal operation camera, and being complementary with subject at this position camera 7, light source 6 consists of the imaging angle.
Described line scan camera is demarcated servicing unit and is comprised: dynamic rotation mechanism 1, cylinder 2, support 3 and encoder 4, referring to Fig. 1, cylinder 2 is installed on two side stands 3, dynamic rotation mechanism 1 drives cylinder 2 rotations, encoder 4 is installed in the rotating shaft of cylinder 2 rotations, dynamic rotation mechanism 1 possesses speed-regulating function, can adjust the rotary speed of cylinder 2; The height of support 3 can be adjusted, to adapt to the variation of calibration position.
The second, cylinder 2 is tangent with the plane 5 that is taken of subject, and cylinder 2 is place, camera imaging face position with the tangent line on this plane 5; That is: think that cylinder 2 conveyings have virtual band 5,7 pairs of virtual bands 5 of camera carry out imaging, and camera is to the band imaging during with the simulation real work.
The 3rd, stick paper with scale marker or pattern at cylinder 2 circumferential outer surfaces, start dynamic rotation mechanism 1 and drive cylinder 2 rotations, the 2 bus imagings of line scan camera 7 aligns with drum; Described cylinder bus is as the plane 5 that is taken of subject, and being complementary with camera 7, light source 6 consists of the imaging angle, referring to Fig. 2; Check light source 6 normal operations, camera 7 imaging under default time for exposure and picking rate Parameter Conditions.
The 4th, rotary speed and the IMAQ speeds match of adjustment cylinder 2 obtain set imaging resolution; Specifically, demarcate cylinder 2 speed pulse signals of encoder 4 collections of servicing unit by exporting described line scan camera, be used for triggering line scan camera 7 and gather images, realize that the IMAQ speed of camera 7 and the rotary speed of cylinder 2 are complementary.
The 5th, by the relative motion of cylinder 2, line scan camera 7 gathers dynamic image, and the pattern on the roll circumference is taken into continuous visual image.
The 6th, regulate gradually camera 7 camera lenses, the image contrast of line of observation scanning camera and definition, until collect clearly till the image, then line scan camera 7 is demarcated complete.
Above-mentioned dynamic imaging line scan camera scaling method is that the single camera image definition is adjusted, and is to be undertaken by under the condition that takes down at actual subject (such as band).
For a plurality of line scan cameras, after the imaging definition of adjusting respectively camera, referring to Fig. 2, line scan camera is demarcated within the visual field that servicing unit places two adjacent cameras, can there be the overlapping region during two camera imagings, observe and the measuring and calculating overlapping region, adjust the spacing between the camera.
Embodiment 1
As shown in Figure 1, 2, the demarcation servicing unit is placed on the image space of line scan camera 7, namely cylinder 2 and the plane 5 that is taken are tangent, and tangent line overlaps with image space.The parameters such as the time for exposure of setting camera 7, picking rate, and mate other image-forming conditions, such as the gain of camera 7, the aperture of camera lens, the brightness of light source 6 etc.Open camera 7 IMAQs, and adjust cylinder 2 speed of demarcating servicing unit, under the condition of speeds match, can obtain needed imaging resolution.If speed encoder 4 as shown in Figure 1 is installed, line scan camera 7 can be set be operated under the external trigger pattern, the IMAQ speed of camera 7 is controlled by the rotating speed of cylinder 2 under this pattern, realizes speeds match.Adjust the focal length of camera 7, observation post gathers details and the definition of image, until obtain clearly image, finishes camera definition adjustment process.
Embodiment 2
Overlapping region when demarcating a plurality of cameras and being used in conjunction with between visual field.As shown in Figure 3, observe respectively the imaging region of camera adjacent among Fig. 31 and camera 2, with the combined field of view that deducts two camera imagings after the visual field addition separately of two cameras, can obtain the overlapping region of camera, adjust and the fixing spacing between the adjacent cameras.
Dynamic imaging line scan camera scaling method of the present invention can be finished efficiently the demarcation of line scan camera and guarantee stated accuracy, and is significant for installation, test and the maintenance of using line scan camera equipment.
Being preferred embodiment of the present invention only below, is not for limiting protection scope of the present invention, therefore, all any modifications of doing within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. dynamic imaging line scan camera scaling method is characterized in that:
The first, line scan camera is demarcated servicing unit be placed on line scan camera position to be imaged; Described camera position to be imaged refers to the service position of camera when normal operation camera, and being complementary with subject at this position camera (7), light source (6) consists of the imaging angle; Described line scan camera is demarcated servicing unit and is comprised: dynamic rotation mechanism (1), cylinder (2), support (3) and encoder (4), cylinder (2) is installed on two side stands (3), dynamic rotation mechanism (1) drives cylinder (2) rotation, encoder (4) is installed in the rotating shaft of cylinder (2) rotation, and dynamic rotation mechanism (1) possesses speed-regulating function;
The second, cylinder (2) is tangent with the plane that is taken (5) of subject, and cylinder (2) is the camera imaging face with the tangent line on this plane;
The 3rd, stick paper with scale marker or pattern at cylinder (2) circumferential outer surface, start dynamic rotation mechanism (1) and drive cylinder (2) rotation, the imaging of line scan camera (7) aligns with drum bus; Described cylinder bus is as the plane that is taken (5) of subject, and being complementary with camera (7), light source (6) consists of the imaging angle; Check light source (6) normal operation, camera (7) imaging under default time for exposure and picking rate Parameter Conditions;
The 4th, rotary speed and the IMAQ speeds match of adjustment cylinder (2) obtain set imaging resolution;
The 5th, by the relative motion of cylinder (2), line scan camera gathers dynamic image, and the pattern on the roll circumference is taken into continuous visual image;
The 6th, regulate gradually camera lens, the image contrast of line of observation scanning camera and definition, until collect clearly till the image, then line scan camera is demarcated complete.
2. dynamic imaging line scan camera scaling method according to claim 1, it is characterized in that: export described line scan camera and demarcate the speed pulse signal that the encoder (4) of servicing unit gathers, be used for triggering line scan camera (7) and gather image, realize that the IMAQ speed of camera (7) and the rotary speed of cylinder (2) are complementary.
3. dynamic imaging line scan camera scaling method according to claim 1 and 2, it is characterized in that: for a plurality of line scan cameras, after the imaging definition of adjusting respectively camera, line scan camera is demarcated within the visual field that servicing unit places two adjacent cameras, can there be the overlapping region during two camera imagings, observe and the measuring and calculating overlapping region, adjust the spacing between the camera.
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| CN104660999A (en) * | 2015-03-13 | 2015-05-27 | 河南科技大学 | Method and device for acquiring standard images of non-uniform velocity moving objects |
| CN105389824A (en) * | 2015-12-14 | 2016-03-09 | 江苏新绿能科技有限公司 | Calibration apparatus and calibration method for optical imaging device of electrified railway catenary |
| CN108195762A (en) * | 2018-03-16 | 2018-06-22 | 鞍钢未来钢铁研究院有限公司 | A kind of micromatic setting and method for realizing line scan camera detection steel defect |
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| CN109738362A (en) * | 2019-01-31 | 2019-05-10 | 浙江工业大学 | A kind of metal shaft surface image acquisition method based on line scanning |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670511A (en) * | 2004-03-17 | 2005-09-21 | 中国印钞造币总公司 | Debugging bench for detecting transmission image quality of sheet-like material |
| US20060071185A1 (en) * | 2004-09-30 | 2006-04-06 | Xerox Corporation | Systems and methods for improving calibration of a linear array sensor |
| CN101216681A (en) * | 2007-12-28 | 2008-07-09 | 上海微电子装备有限公司 | Machine vision dynamic calibration system and method |
| CN101419177A (en) * | 2007-10-25 | 2009-04-29 | 宝山钢铁股份有限公司 | Method for demarcating multi line scan video cameras |
| CN102136165A (en) * | 2010-12-23 | 2011-07-27 | 西安印钞有限公司 | System and method for detecting front and back face qualities of imprinted Renminbi (RMB) large-page product |
-
2012
- 2012-04-01 CN CN201210094584.4A patent/CN103369346B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670511A (en) * | 2004-03-17 | 2005-09-21 | 中国印钞造币总公司 | Debugging bench for detecting transmission image quality of sheet-like material |
| US20060071185A1 (en) * | 2004-09-30 | 2006-04-06 | Xerox Corporation | Systems and methods for improving calibration of a linear array sensor |
| CN101419177A (en) * | 2007-10-25 | 2009-04-29 | 宝山钢铁股份有限公司 | Method for demarcating multi line scan video cameras |
| CN101216681A (en) * | 2007-12-28 | 2008-07-09 | 上海微电子装备有限公司 | Machine vision dynamic calibration system and method |
| CN102136165A (en) * | 2010-12-23 | 2011-07-27 | 西安印钞有限公司 | System and method for detecting front and back face qualities of imprinted Renminbi (RMB) large-page product |
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| CN114519747A (en) * | 2022-02-28 | 2022-05-20 | 嘉兴市像景智能装备有限公司 | Calibration method of automatic optical detection equipment in field of pan-electronics |
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| CN117010427B (en) * | 2023-10-07 | 2024-03-19 | 季华实验室 | Cylindrical revolution body surface identification code acquisition device |
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