CN102065193A - Method for correcting image capturing device - Google Patents
Method for correcting image capturing device Download PDFInfo
- Publication number
- CN102065193A CN102065193A CN 200910224566 CN200910224566A CN102065193A CN 102065193 A CN102065193 A CN 102065193A CN 200910224566 CN200910224566 CN 200910224566 CN 200910224566 A CN200910224566 A CN 200910224566A CN 102065193 A CN102065193 A CN 102065193A
- Authority
- CN
- China
- Prior art keywords
- image capture
- paper
- those
- capture unit
- support body
- 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.)
- Granted
Links
Images
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a method for correcting an image capturing device, suitable for paper deviation test equipment. The method comprises the following steps of: firstly, providing a frame body and a test platform, wherein the test platform is fixedly arranged on the frame body and is provided with a paper bearing surface, and the paper bearing surface is provided with a plurality of first locating marks; providing a plurality of image capturing devices, wherein a plurality of image capturing devices are movably arranged on the frame body and located above the paper bearing surface; moving the image capturing devices opposite to the frame to the first locating marks; providing a correction layer and placing the correction layer on the paper bearing surface, wherein the correction layer is provided with a plurality of focusing matrixes which are corresponding to the image capturing devices. The method adjusts the focus distance of the image capturing devices to the specific value via the focusing matrix, and the image capturing devices are fixed on the frame body.
Description
Technical field
The invention relates to a kind of bearing calibration, and particularly relevant for a kind of bearing calibration of image capture unit.
Background technology
In general, printer must be earlier by selling after the sheet wander test on the market.When being to check printer that paper is printed, whether the path that paper is advanced deflection and cause the pattern that prints on the paper crooked to some extent the order of sheet wander test.The method of carrying out sheet wander test can be artificial visual, and the tester can compare or measures by the print pattern on the paper that printing is finished, and whether to some extent judging the travel path of paper in print procedure deflection, yet this kind mode is than inaccuracy.In order to solve the shortcoming of artificial visual method of testing, can carry out more accurate test by sheet wander testing equipment with image capture unit.
The sheet wander testing equipment can comprise a test platform and be disposed at an image capture unit of test platform top, when testing, the tester can be placed in paper on the test platform, and the image by the print pattern on the image capture unit acquisition paper, see through computer program again and judge print pattern deflection whether to some extent on the paper.When image capture unit is when being provided with in fixed mode, must just can guarantee precision of test result with the position of image capture unit and focus correction to particular value.
Summary of the invention
The invention provides a kind of bearing calibration of image capture unit, can proofread and correct the position and the focal length of image capture unit exactly.
The present invention proposes a kind of bearing calibration of image capture unit, is applicable to the sheet wander testing equipment.At first, provide support body and test platform, wherein test platform is fixedly arranged on support body and has the paper bearing face.Have a plurality of first telltale marks on the paper bearing face.A plurality of image capture units are provided, movably are disposed at support body and are positioned at above the paper bearing face.The relative support body of image capture unit moved to correspond respectively to first telltale mark.Correcting layer is provided and will proofreaies and correct stratification to be put on the paper bearing face, wherein have a plurality of focusing dot matrix on the correcting layer, correspond respectively to image capture unit.By the focusing dot matrix focal length of image capture unit is adjusted to particular value.Image capture unit is fixed in support body.
In one embodiment of this invention, the material of above-mentioned correcting layer is plastics.
In one embodiment of this invention, have more a plurality of second telltale marks on the above-mentioned correcting layer, second telltale mark is respectively to being positioned at first telltale mark, and before image capture unit is fixed in support body, the more relative support body of image capture unit is moved to and correspond respectively to second telltale mark.
In one embodiment of this invention, each above-mentioned second telltale mark comprises anchor point and a plurality of identification point, and identification point is around anchor point.
In one embodiment of this invention, each above-mentioned first telltale mark comprises anchor point and a plurality of identification point, and identification point is around anchor point.
Based on above-mentioned, a plurality of image capture units of the present invention position by a plurality of first telltale marks that are positioned on the paper bearing face respectively, and carry out the correction of focus by a plurality of focusing dot matrix of putting the correcting layer on the paper bearing face respectively.By this, can be with the position of each image capture unit and focus correction to particular value, to guarantee the correctness of follow-up sheet wander test.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 is the stereogram of the sheet wander testing equipment of one embodiment of the invention.
Fig. 2 A to Fig. 2 C is the bearing calibration flow chart of the image capture unit of present embodiment.
Fig. 3 is the partial enlarged drawing of the correcting layer of Fig. 2 C.
Fig. 4 is the first specifically labelled enlarged drawing of Fig. 2 A.
Fig. 5 is the partial component vertical view of the sheet wander testing equipment of Fig. 1.
Embodiment
Fig. 1 is the stereogram of the sheet wander testing equipment of one embodiment of the invention.Please refer to Fig. 1, the sheet wander testing equipment 100 of present embodiment comprises support body 110, test platform 120 and a plurality of image capture unit 130.Test platform 120 is fixedly arranged on support body 110 and has paper bearing face 122, and image capture unit 130 is fixedly arranged on support body 110 and is positioned at paper bearing face 122 tops.The user can be placed in the paper (Fig. 1 does not illustrate) that goes out via printer prints on the paper bearing face 122, image by the print pattern on 130 pairs of paper of image capture unit captures then, and see through print pattern deflection whether on the corresponding computer program interpretation paper, and then judge paper its travel path deflection whether to some extent in via the process of printer prints.
Before carrying out the test of paper deflection, must proofread and correct the position and the focal length of each image capture unit 130, to guarantee the correctness of test result.Below pass through the bearing calibration of the image capture unit of illustration present embodiment.
Fig. 2 A to Fig. 2 C is the bearing calibration flow chart of the image capture unit of present embodiment.For making icon comparatively clear, Fig. 2 A to Fig. 2 C does not show the support body 110 of Fig. 1, and the image capture unit among Fig. 1 130 illustrates with circular dashed line in Fig. 2 B and Fig. 2 C.At first, please also refer to Fig. 1 and Fig. 2 A, support body 110 and test platform 120 are provided, wherein test platform 120 is fixedly arranged on support body 110 and has paper bearing face 122, has a plurality of first telltale mark 122a～122j on the paper bearing face 122.
Then, please also refer to Fig. 1 and Fig. 2 B, a plurality of image capture units 130 are provided, image capture unit 130 movably is disposed at support body 110 and is positioned at paper bearing face 122 tops, and image capture unit 130 relative support bodys 110 are moved to correspond respectively to first telltale mark 122a～122j (shown in Fig. 2 B), with the correction of the position of finishing image capture unit 130.Please refer to Fig. 2 C, correcting layer 140 is provided and correcting layer 140 is placed on the paper bearing face 122, wherein have a plurality of focusing dot matrix 140a～140j on the correcting layer 140, correspond respectively to image capture unit 130.By focusing dot matrix 140a～140j the focal length of image capture unit 130 is adjusted to the correction of particular value with the focal length of finishing image capture unit 130.At last, image capture unit 130 is fixed in support body 110 to treat follow-up paper deflection test.
Fig. 3 is the partial enlarged drawing of the correcting layer of Fig. 2 C.Please refer to Fig. 3,140a is an example with the focusing dot matrix, the focal length of image capture unit 130 is adjusted in the process of particular value by focusing dot matrix 140a above-mentioned, the image of the focusing dot matrix 140a that image capture unit 130 is captured by computer program carries out interpretation, spacing between the size of each point D that image capture unit 130 is captured and 2 D is a predetermined value, judges that just the focal length of image capture unit 130 at this moment is a right value.
In addition, have more a plurality of second telltale marks 142 (comparatively clear for making icon, Fig. 2 C does not show second telltale mark 142) that are respectively adjacent to focusing dot matrix 140a～140j on the correcting layer 140 of present embodiment.Second telltale mark 142 is respectively to first telltale mark 122a～122j on the paper bearing face 122 that is positioned at Fig. 2 A.By this, before image capture unit 130 is fixed in support body 110, more image capture unit 130 relative support bodys 110 can be moved to and correspond respectively to second telltale mark 142, second degree with the position of carrying out image capture unit 130 is proofreaied and correct, and further guarantees the correctness of the position of image capture unit 130.In the present embodiment, the material of correcting layer 140 for example is plastics, and focusing dot matrix 140a～140j and second telltale mark 142 can be formed on the correcting layer 140 by the mode of printing.
Fig. 4 is the first specifically labelled enlarged drawing of Fig. 2 A.Please refer to Fig. 4, is example with the first telltale mark 122a, and the first telltale mark 122a can comprise anchor point S1 and center on a plurality of identification point S2 of anchor point S1.By this, after the computer program warp is suitably set, image capture unit 130 must capture the specific image that is made of anchor point S1 and identification point S2, and computer program can be telltale mark 122a with its interpretation, to carry out the correction of the position of image capture unit 130 by telltale mark 122a.In the same manner, please refer to Fig. 3, second telltale mark 142 can comprise anchor point S3 and center on a plurality of identification point S4 of anchor point S3.By this, after the computer program warp is suitably set, image capture unit 130 must capture the specific image that is made of anchor point S3 and identification point S4, computer program can be second telltale mark 142 with its interpretation, to carry out the correction of the position of image capture unit 130 by second telltale mark 142.
After image capture unit 130 finished by above-mentioned flow process correction, sheet wander testing equipment 100 can begin to carry out the test of paper deflection.Below by icon this is described in detail.
Fig. 5 is the partial component vertical view of the sheet wander testing equipment of Fig. 1.For making icon comparatively clear, Fig. 5 does not show the support body 110 of Fig. 1, and the image capture unit among Fig. 1 130 illustrates with circular dashed line in Fig. 5.Please refer to Fig. 5, have the print pattern 50a that prints through printer on the paper 50 to be measured, the print pattern 50a of present embodiment is made of four print points 52 on four summits of contiguous paper 50.Have the print pattern 60a that prints through printer on the paper 60 to be measured, the print pattern 60a of present embodiment is made of four print points 62 on four summits of contiguous paper 60.Have the print pattern 70a that prints through printer on the paper 70 to be measured, the print pattern 70a of present embodiment is made of four print points 72 on four summits of contiguous paper 70.
When user's desire is tested paper 50, paper 50 can be placed on the paper bearing face 122 and to being positioned at regional P1, so that four print points 52 on the paper 50 correspond respectively to four first telltale mark 122a, 122b, 122c and 122d that regional P1 is contained, and towards image capture unit 130.Then, the image by four print points 52 on four image capture units, the 130 fechtable paper 50 that correspond respectively to the first telltale mark 122a, 122b, 122c and 122d.
At last, can utilize the position of four print points 52 on the computer program interpretation paper 50 whether to deviate from preposition, judging paper 50 its travel path deflection whether to some extent in, or further judge the side-play amount of paper 50 its travel path in via the process of printer prints via the side-play amount of print point 52 via the process of printer prints.It should be noted that in above-mentioned test process, must just can the image of four print points 52 on the paper 50 not captured by movable image capture device 130, therefore can save the testing time.
Furthermore, when the paper 60 that has a different size when user's desire pair and paper 50 is tested, paper 60 can be placed on the paper bearing face 122 and to being positioned at regional P2, so that four print points 62 on the paper 60 correspond respectively to four first telltale mark 122a, 122e, 122g and 122f that regional P2 is contained, and towards image capture unit 130.Then, the image by four print points 62 on four image capture units, the 130 fechtable paper 60 that correspond respectively to the first telltale mark 122a, 122e, 122g and 122f.
At last, can utilize the position of four print points 62 on the computer program interpretation paper 60 whether to deviate from preposition, judging paper 60 its travel path deflection whether to some extent in, or further judge the side-play amount of paper 60 its travel path in via the process of printer prints via the side-play amount of print point 62 via the process of printer prints.It should be noted that in above-mentioned test process, must just can the image of four print points 62 on the paper 60 not captured by movable image capture device 130, therefore can save the testing time.In addition, zone P1 and regional P2 have all been contained the first telltale mark 122a, and make the print point 62 of the print point 52 of paper 50 and paper 60 all can be corresponding to the first telltale mark 122a, to allow corresponding to the image capture unit 130 of the first telltale mark 122a except can be used for paper 50 tested, also can be used for the paper 60 that has a different size with paper 50 is tested.
In the same manner, when the paper 70 that has a different size when user's desire pair and paper 50 and paper 60 is tested, paper 70 can be placed on the paper bearing face 122 and to being positioned at regional P3, so that four print points 72 on the paper 70 correspond respectively to four first telltale mark 122a, 122h, 122i and 122j that regional P3 is contained, and towards image capture unit 130.Then, the image by four print points 72 on four image capture units, the 130 fechtable paper 70 that correspond respectively to the first telltale mark 122a, 122h, 122i and 122j.
At last, can utilize the position of four print points 72 on the computer program interpretation paper 70 whether to deviate from preposition, judging paper 70 its travel path deflection whether to some extent in, or further judge the side-play amount of paper 70 its travel path in via the process of printer prints via the side-play amount of print point 72 via the process of printer prints.It should be noted that in above-mentioned test process, must just can the image of four print points 72 on the paper 70 not captured by movable image capture device 130, therefore can save the testing time.In addition, zone P1, regional P2 and regional P3 have all been contained the first telltale mark 122a, and make the print point 72 of the print point 62 of print point 52, paper 60 of paper 50 and paper 70 all can be corresponding to the first telltale mark 122a, to allow corresponding to the image capture unit 130 of the first telltale mark 122a except can be used for paper 50 and paper 60 tested, also can be used for the paper 70 that has a different size with paper 50 and paper 60 is tested.
In the embodiment that other does not illustrate, more can increase more anchor point, so that sheet wander testing equipment 100 can be suitable for the paper of more different sizes is tested in the appropriate location on the paper bearing face 122.In addition, please refer to Fig. 5, in the present embodiment, test platform 120 has a plurality of stop parts 124 on paper bearing face 122a.When paper 50, paper 60 or paper 70 are carried on the paper bearing face 122a, the edge of paper 50, paper 60 or paper 70 can be resisted against stop part 122a, so that paper 50, paper 60 or paper 70 are positioned at correct position, and then guarantee the correctness of test result.
In sum, a plurality of image capture units of the present invention position by a plurality of first telltale marks that are positioned on the paper bearing face respectively, and carry out the correction of focus by a plurality of focusing dot matrix of putting the correcting layer on the paper bearing face respectively.By this, can be with the position of each image capture unit and focus correction to right value, to guarantee the correctness of follow-up sheet wander test.In addition, correcting layer more can have respectively to being positioned at first specifically labelled a plurality of second telltale marks, before each image capture unit is fixed in support body, can carry out the second degree location of image capture unit by second telltale mark, with the correctness of the position of further guaranteeing image capture unit.
Though the present invention discloses as above with embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is worked as with being as the criterion that claim was defined.
Claims (5)
1. the bearing calibration of an image capture unit is applicable to a sheet wander testing equipment, and the localization method of this image capture unit comprises:
One support body and a test platform are provided, and wherein this test platform is fixedly arranged on this support body and has a paper bearing face, has a plurality of first telltale marks on this paper bearing face;
A plurality of image capture units are provided, movably are disposed at this support body and are positioned at this paper bearing face top;
With those image capture units relatively this support body move to and correspond respectively to those first telltale marks;
Provide a correcting layer also this correcting layer to be placed on this paper bearing face, wherein have a plurality of focusing dot matrix on this correcting layer, correspond respectively to those image capture units;
By those focusing dot matrix the focal length of those image capture units is adjusted to a particular value; And
Those image capture units are fixed in this support body.
2. the bearing calibration of image capture unit as claimed in claim 1 is characterized in that, the material of this correcting layer is plastics.
3. the bearing calibration of image capture unit as claimed in claim 1, it is characterized in that, have more a plurality of second telltale marks on this correcting layer, those second telltale marks are respectively to being positioned at those first telltale marks, and before those image capture units are fixed in this support body, more relative this support body of those image capture units are moved to and correspond respectively to those second telltale marks.
4. as the bearing calibration of claim 1 or 2 or 3 described image capture units, it is characterized in that respectively this second telltale mark comprises an anchor point and a plurality of identification point, those identification points are around this anchor point.
5. the bearing calibration of image capture unit as claimed in claim 4 is characterized in that, respectively this first telltale mark comprises an anchor point and a plurality of identification point, and those identification points are around this anchor point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910224566 CN102065193B (en) | 2009-11-12 | 2009-11-12 | Method for correcting image capturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910224566 CN102065193B (en) | 2009-11-12 | 2009-11-12 | Method for correcting image capturing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102065193A true CN102065193A (en) | 2011-05-18 |
| CN102065193B CN102065193B (en) | 2012-12-26 |
Family
ID=44000287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910224566 Expired - Fee Related CN102065193B (en) | 2009-11-12 | 2009-11-12 | Method for correcting image capturing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102065193B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103455980A (en) * | 2013-06-27 | 2013-12-18 | 钰创科技股份有限公司 | Correcting device applied to image acquisition system and related correcting method thereof |
| CN104827766A (en) * | 2015-05-28 | 2015-08-12 | 安庆市德创机电产品设计有限公司 | Paper operation monitoring component of laminating machine |
| CN106290226A (en) * | 2016-09-19 | 2017-01-04 | 成都曙光光纤网络有限责任公司 | A kind of Terahertz transmission imaging device and method |
| CN106290227A (en) * | 2016-08-25 | 2017-01-04 | 成都曙光光纤网络有限责任公司 | A kind of THz wave reflection imaging device and method |
| CN109274852A (en) * | 2018-09-28 | 2019-01-25 | 深圳市盛世生物医疗科技有限公司 | A kind of image focal length mark point intelligent selecting method, device and equipment |
| TWI714924B (en) * | 2017-12-13 | 2021-01-01 | 台達電子工業股份有限公司 | Method for identifying pointer of analog meter and image capture apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180397A (en) * | 2017-05-23 | 2017-09-19 | 南京华鼎电子有限公司 | A kind of fast easily optical identification is ordered single editing system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106700A (en) * | 2007-08-01 | 2008-01-16 | 大连海事大学 | Intelligent target detail capturing device and method in video monitoring system |
| CN101408520A (en) * | 2007-10-12 | 2009-04-15 | 中茂电子(深圳)有限公司 | Detection method and system for discriminating flaws of inner and outer layers |
| CN101217623B (en) * | 2007-12-26 | 2012-07-11 | 广东威创视讯科技股份有限公司 | A quick manual focusing method |
-
2009
- 2009-11-12 CN CN 200910224566 patent/CN102065193B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103455980A (en) * | 2013-06-27 | 2013-12-18 | 钰创科技股份有限公司 | Correcting device applied to image acquisition system and related correcting method thereof |
| CN103455980B (en) * | 2013-06-27 | 2016-06-01 | 钰立微电子股份有限公司 | Correcting device applied to image acquisition system and related correcting method thereof |
| CN104827766A (en) * | 2015-05-28 | 2015-08-12 | 安庆市德创机电产品设计有限公司 | Paper operation monitoring component of laminating machine |
| CN106290227A (en) * | 2016-08-25 | 2017-01-04 | 成都曙光光纤网络有限责任公司 | A kind of THz wave reflection imaging device and method |
| CN106290227B (en) * | 2016-08-25 | 2020-06-02 | 成都曙光光纤网络有限责任公司 | Terahertz wave reflection imaging device and method |
| CN106290226A (en) * | 2016-09-19 | 2017-01-04 | 成都曙光光纤网络有限责任公司 | A kind of Terahertz transmission imaging device and method |
| CN106290226B (en) * | 2016-09-19 | 2020-04-17 | 成都曙光光纤网络有限责任公司 | Terahertz transmission imaging device and method |
| TWI714924B (en) * | 2017-12-13 | 2021-01-01 | 台達電子工業股份有限公司 | Method for identifying pointer of analog meter and image capture apparatus |
| CN109274852A (en) * | 2018-09-28 | 2019-01-25 | 深圳市盛世生物医疗科技有限公司 | A kind of image focal length mark point intelligent selecting method, device and equipment |
| CN109274852B (en) * | 2018-09-28 | 2020-03-27 | 深圳市盛世生物医疗科技有限公司 | Intelligent selection method, device and equipment for image focal length mark points |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102065193B (en) | 2012-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102065193B (en) | Method for correcting image capturing device | |
| ATE439985T1 (en) | APPARATUS AND METHOD FOR AUTOMATICALLY ALIGNING SERIES OF PRESSURE ELEMENTS | |
| EP2045085A3 (en) | Image forming device, and method and computer program therefor | |
| CN108537218B (en) | Answer sheet identification processing method and device | |
| US20140326152A1 (en) | System and method for aligning, mounting and recording alignment of a mounted printing plate | |
| US10427435B2 (en) | Printing indicia indicating an intended location of a fold line | |
| US20150210064A1 (en) | Method of correcting a screen printer and a board inspection system using the same | |
| CN104166306A (en) | Imprinting apparatus, device fabrication method, and imprinting method | |
| CN103529654A (en) | Alignment method for internal layers in direct writing type photoetching system | |
| AU2013304705B2 (en) | Method and device for aligning printing plates on printing cylinders | |
| CN105976354A (en) | Color and gradient based element positioning method and system | |
| EP2882596A1 (en) | Methods and systems for determining a printing position | |
| CN105091755B (en) | A kind of detection method of screen process press secondary printing precision | |
| CN106778750B (en) | Method and system for accurately positioning answer sheet identification points | |
| KR20160039324A (en) | Roll to roll printing system with a precision alignment marker | |
| CN101596806B (en) | Hot stamping equipment of reel materials and operating method thereof | |
| CN104977812A (en) | Exposure apparatus and method for manufacturing article | |
| CN106896647B (en) | Maskless lithographic for the processing based on net | |
| CN207908632U (en) | A kind of roll-to-roll test machine for flexible circuit board | |
| CN106524910B (en) | Executing agency's vision alignment method | |
| CN206781307U (en) | A kind of automatic stamping device suitable for wiring board electrical measurement process | |
| CN111942043B (en) | Secondary offset printing method for realizing high-precision roll-to-roll registration | |
| CN106574901B (en) | Improved system and method for computerized write-through | |
| CN109378278B (en) | Wafer alignment method | |
| CN104553364B (en) | A kind of noncontact full-automatic substrate slice grouping system and laser marking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20161112 |