CN104202518A - Zooming method and system of integrated video camera - Google Patents
Zooming method and system of integrated video camera Download PDFInfo
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- CN104202518A CN104202518A CN201410423054.9A CN201410423054A CN104202518A CN 104202518 A CN104202518 A CN 104202518A CN 201410423054 A CN201410423054 A CN 201410423054A CN 104202518 A CN104202518 A CN 104202518A
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Abstract
The invention relates to a zooming method and system of an integrated video camera. The zooming method comprises the steps of: obtaining a focal length f of an initial point A based on an initial position of a zooming motor and a relationship curve of a pre-stored position of the zooming motor and a focal length; obtaining an object distance L1 of an initial point A and an object distance L2 of a target point B after the zooming; adjusting a aperture value in real time based on the focal length f, the object distance L1 and the object distance L2 to enable the target point B to be in a range of a depth of field of the initial point A. Based on the principle that image formation of object in the range of the depth of field of the lens is clear, the image formation of the lens still keeps the clear degree acceptable by human eyes after the object distance is changed within the range of the depth of field. After the object distance is changed, a focusing motor is further adjusted finely so as to finish the focusing, and accordingly the searching stroke of the focusing motor is shortened.
Description
Technical field
The present invention relates to zoom and the focusing technology of integrated camera.
Background technology
As shown in Figure 1, integrated camera comprises image capture module, image processing module 109, display 111 and lens control module 110.Image capture module comprises camera lens and imageing sensor 105.Subject 101 send or the light that reflects by focus-variable lens group 102, aperture 103 and focusing lens group 104, imaging on the target surface of imageing sensor 105.Imageing sensor 105 converts imaging to the signal of telecommunication.The signal of telecommunication that image processing module 109 transmits imageing sensor 105 carries out a series of processing computing, obtains the picture signal that can show on display 105.Lens control module 110, for controlling zoom motor 106, focusing motor 108 and the control of diaphragm motor 107 of camera lens, with mobile focus-variable lens group 102 and focusing lens group 104, in the position of coupling and the size of adjusting aperture 103, make the imaging clearly on imageing sensor 105 target surfaces sharp keen.
At present, the traditional auto focusing method based on measuring object distance is replaced by the Techniques of Automatic Focusing based on Digital Image Processing gradually.Techniques of Automatic Focusing based on Digital Image Processing is to utilize Digital Image Processing algorithm, obtain the definition evaluation of estimate of every two field picture, and control lens control module 100 according to certain algorithm, with mobile focusing lens group 104 and focus-variable lens group 102, find the value of maximum articulation under current object distance, get a distinct image.
The zoom technology of current integrated camera, generally first control zoom motor 106 and move focus-variable lens group 102, make object distance approach target zoom position, and then adjust focusing motor 108 with mobile focusing lens group 104 fine setting focal lengths, focus on the most clear position of picture.The zoom mode focusing on after this first zoom, picture can exist comparatively serious by clear to fuzzy process.The Zooming method that upgrades any is when adjusting zoom motor 106, to move focusing lens group 104 (controlling by focusing on motor 108), reduces the fog-level in zoom process as far as possible.But under this zoom mode, focus on the controlling party of motor 108 to more difficult judgement, easily occur anisotropy, and it is longer to focus on motor 108 search strokes, easily causes the situation that zoom is walked fuzzyyer and fuzzyyer to occur.
Summary of the invention
The object of the invention is to propose a kind of Zooming method of integrated camera, it can solve in zoom process, the problem that picture can thicken.
In order to achieve the above object, the technical solution adopted in the present invention is as follows:
The Zooming method of integrated camera, it comprises the following steps:
Step 1, according to the position of initial zoom motor and pre-stored zoom motor position and the relation curve of focal length, obtain the focal distance f of initial point A; And according to the position of initial zoom motor and described focal distance f and in conjunction with pre-stored zoom tracking curve, obtain the object distance L of initial point A
1object distance L with impact point B after zoom
2;
Step 2, according to focal distance f, object distance L
1with object distance L
2, adjust in real time f-number, so that impact point B drops in the field depth of initial point A.
Preferably, after step 2 also in steps 3: after completing zoom, move to relevant position by focusing on Electric Machine Control focusing lens group.Further preferred, after described step 3 also in steps 4: control focusing on motor according to AF detected value, so that the position of described focusing lens group is finely tuned.
Preferably, described step 2 comprises following sub-step:
Step 21, judgement zooming direction, if zooming direction is object distance augment direction, perform step 22, if zooming direction is object distance, reduces direction, performs step 23;
Step 22, adjustment f-number are F
1,
Step 23, adjustment f-number are F
2,
Wherein, c is for allowing blur circle diameter.
The present invention also proposes a kind of zoom system, pancreatic system of integrated camera, and it comprises with lower module:
Parameter acquisition module, for according to the position of initial zoom motor and pre-stored zoom motor position and the relation curve of focal length, obtains the focal distance f of initial point A; And according to the position of initial zoom motor and described focal distance f and in conjunction with pre-stored zoom tracking curve, obtain the object distance L of initial point A
1object distance L with impact point B after zoom
2;
Aperture adjusting module, for according to focal distance f, object distance L
1with object distance L
2, adjust in real time f-number, so that impact point B drops in the field depth of initial point A.
Preferably, after aperture adjusting module, also have: focus module, for after completing zoom, moves to relevant position by focusing on Electric Machine Control focusing lens group.Further preferred, after described focus module, also have: fine setting module, for controlling focusing on motor according to AF detected value, so that the position of described focusing lens group is finely tuned.
Preferably, described aperture adjusting module comprises following submodule:
Judge module, for judging zooming direction, if zooming direction is object distance augment direction, carries out the first adjusting module, if zooming direction is object distance, reduces direction, carries out the second adjusting module;
The first adjusting module is F for adjusting f-number
1,
The second adjusting module is F for adjusting f-number
2,
Wherein, c is for allowing blur circle diameter.
The present invention has following beneficial effect:
Object imaging based in camera lens field depth is all principle clearly, changes object distance in field depth, and lens imaging still keeps the acceptable readability of human eye.Change after object distance, further vernier focusing motor, can complete focusing, thereby shorten the search stroke that focuses on motor.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing integrated camera;
Fig. 2 is the flow chart of the Zooming method of preferred embodiment of the present invention;
Fig. 3 is the graph of relation of zoom motor position and focal length;
Fig. 4 is the structural representation of the zoom system, pancreatic system of preferred embodiment of the present invention;
Fig. 5 is that the depth of field covers principle schematic.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the present invention is described further.
As shown in Figure 2, the Zooming method of integrated camera, it comprises the following steps:
Step S1, when integrated camera enters zoom state, according to the relation curve of the position of initial zoom motor and pre-stored zoom motor position and focal length (as shown in Figure 3, ordinate represents focal length, and abscissa represents zoom motor position), the focal distance f of acquisition initial point A; And according to the position of initial zoom motor and described focal distance f and in conjunction with pre-stored zoom tracking curve, obtain the object distance L of initial point A
1object distance L with impact point B after zoom
2.The using method of zoom tracking curve can be referring to the article content of " application of zoom tracking curve in focusing " of the 2326-2332 page of the < < optical precision engineering > > publishing in October, 2011 (the 19th the 10th phase of volume), its author is Luo Jun, Sun Li and Min Zhisheng, and its article is numbered 1004-924X (2011) 10-2326-07.The relation curve of zoom motor position and focal length and zoom tracking curve are all prior aries, and it is all pre-stored in the image processing module of integrated camera.Described initial point A represents that integrated camera enters the focusing state before zoom state, and impact point B represents that integrated camera enters after zoom state, when focus-variable lens group constantly changes continuous corresponding object distance.
Step S2, judgement zooming direction, if zooming direction is object distance augment direction, i.e. L
2-L
1> 0, performs step S3, reduces direction, i.e. L if zooming direction is object distance
2-L
1< 0, performs step S4.
Step S3, adjustment f-number are F
1,
will
be designated as F, in actual program, F
1value can be set as F
1=F, also can be set as F
1be greater than the arbitrary value of F, as long as in the adjustable extent of camera lens.
Step S4, adjustment f-number are F
2,
s3 is same with step, F
2value can be set as F
2=F, also can be set as F
2be greater than the arbitrary value of F, as long as in the adjustable extent of camera lens.
Wherein, in step S3 and S4, c is for allowing blur circle diameter, and f is the focal length of initial point A, L
1for the object distance of initial point A, L
2object distance for impact point B.
The adjustment principle of f-number is as follows:
According to field depth principle, the front depth of field of initial point A is:
The rear depth of field of initial point A is:
So, when zooming direction is object distance augment direction, impact point B is fallen in the rear field depth of initial point A, object distance variable quantity is less than or equal to the rear depth of field, L
2-L
1≤ H
2; Same, when zooming direction be object distance increase and decrease little to time, impact point B is fallen in the front field depth of initial point A, object distance variable quantity is less than or equal to the front depth of field, L
1-L
2≤ H
1.
Step S5, after completing zoom, zoom motor has been controlled focus-variable lens group and has been moved to behind relevant position, continues to move to relevant position by focusing on Electric Machine Control focusing lens group, to realize first fine setting.
Step S6: control focusing on motor according to AF detected value, so that the position of described focusing lens group is finely tuned for the second time, thereby effectively improve focusing precision.Described AF detected value is also prior art, asks for an interview in detail application number and be the content that the specification background technology of 200710142092.7 Chinese invention patent application is recorded.Described AF detected value is also pre-stored within the image processing module of integrated camera.
As shown in Figure 4, the present embodiment also proposes a kind of zoom system, pancreatic system of integrated camera, and it comprises with lower module:
Parameter acquisition module, for according to the position of initial zoom motor and pre-stored zoom motor position and the relation curve of focal length, obtains the focal distance f of initial point A; And according to the position of initial zoom motor and described focal distance f and in conjunction with pre-stored zoom tracking curve, obtain the object distance L of initial point A
1object distance L with impact point B after zoom
2;
Aperture adjusting module, for according to focal distance f, object distance L
1with object distance L
2, adjust in real time f-number, so that impact point B drops in the field depth of initial point A.
Focus module, for after completing zoom, moves to relevant position by focusing on Electric Machine Control focusing lens group.
Fine setting module, for controlling focusing on motor according to AF detected value, so that the position of described focusing lens group is finely tuned.
Preferably, described aperture adjusting module comprises following submodule:
Judge module, for judging zooming direction, if zooming direction is object distance augment direction, carries out the first adjusting module, if zooming direction is object distance, reduces direction, carries out the second adjusting module;
The first adjusting module is F for adjusting f-number
1,
The second adjusting module is F for adjusting f-number
2,
Wherein, c is for allowing blur circle diameter.
This example utilizes the zoom motor position of access in advance and the relation curve of focal length, in conjunction with pre-stored zoom tracking curve, in zoom process, adjust in real time the size of aperture, to adjust the depth of field of initial point, thereby make within impact point drops on the field depth of initial point, to make in zoom process, impact point definition, always in acceptable definition range and so on, has overcome clear-fuzzy-clear phenomenon that prior art occurs in zoom process.After completing zoom, only need vernier focusing can complete autozoom tracking focusing.The algorithm of the present embodiment is simple, easily implements, and there is no a large amount of computings, has promoted to a certain extent the arithmetic speed of image processing module.
It should be noted that, the principle that the present invention covers based on the depth of field realizes, and the principle that the depth of field covers as shown in Figure 5.Wherein,
The front depth of field
The rear depth of field
The depth of field
δ-allow blur circle diameter, f-lens focus, the shooting f-number of F-camera lens, L-focusing from.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion all should belong to the protection range of the claims in the present invention within.
Claims (8)
1. the Zooming method of integrated camera, is characterized in that, comprises the following steps:
Step 1, according to the position of initial zoom motor and pre-stored zoom motor position and the relation curve of focal length, obtain the focal distance f of initial point A; And according to the position of initial zoom motor and described focal distance f and in conjunction with pre-stored zoom tracking curve, obtain the object distance L of initial point A
1object distance L with impact point B after zoom
2;
Step 2, according to focal distance f, object distance L
1with object distance L
2, adjust in real time f-number, so that impact point B drops in the field depth of initial point A.
2. Zooming method as claimed in claim 1, is characterized in that, after step 2 also in steps 3: after completing zoom, move to relevant position by focusing on Electric Machine Control focusing lens group.
3. Zooming method as claimed in claim 2, is characterized in that, after described step 3 also in steps 4: control focusing on motor according to AF detected value, so that the position of described focusing lens group is finely tuned.
4. Zooming method as claimed in claim 1, is characterized in that, described step 2 comprises following sub-step:
Step 21, judgement zooming direction, if zooming direction is object distance augment direction, perform step 22, if zooming direction is object distance, reduces direction, performs step 23;
Step 22, adjustment f-number are F
1,
Step 23, adjustment f-number are F
2,
Wherein, c is for allowing blur circle diameter.
5. the zoom system, pancreatic system of integrated camera, is characterized in that, comprises with lower module:
Parameter acquisition module, for according to the position of initial zoom motor and pre-stored zoom motor position and the relation curve of focal length, obtains the focal distance f of initial point A; And according to the position of initial zoom motor and described focal distance f and in conjunction with pre-stored zoom tracking curve, obtain the object distance L of initial point A
1object distance L with impact point B after zoom
2;
Aperture adjusting module, for according to focal distance f, object distance L
1with object distance L
2, adjust in real time f-number, so that impact point B drops in the field depth of initial point A.
6. zoom system, pancreatic system as claimed in claim 5, is characterized in that, after aperture adjusting module, also has: focus module, for after completing zoom, moves to relevant position by focusing on Electric Machine Control focusing lens group.
7. zoom system, pancreatic system as claimed in claim 6, is characterized in that, after described focus module, also has: fine setting module, and for controlling focusing on motor according to AF detected value, so that the position of described focusing lens group is finely tuned.
8. zoom system, pancreatic system as claimed in claim 5, is characterized in that, described aperture adjusting module comprises following submodule:
Judge module, for judging zooming direction, if zooming direction is object distance augment direction, carries out the first adjusting module, if zooming direction is object distance, reduces direction, carries out the second adjusting module;
The first adjusting module is F for adjusting f-number
1,
The second adjusting module is F for adjusting f-number
2,
Wherein, c is for allowing blur circle diameter.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980661A (en) * | 2015-07-10 | 2015-10-14 | 武汉烽火众智数字技术有限责任公司 | Method and apparatus for self-correcting camera lens |
| CN106385534A (en) * | 2016-09-06 | 2017-02-08 | 努比亚技术有限公司 | Focusing method and terminal |
| CN107483820A (en) * | 2017-08-23 | 2017-12-15 | 福建星瑞格软件有限公司 | A kind of quick focus method and device of the focusing of contrast formula |
| CN108200344A (en) * | 2018-01-23 | 2018-06-22 | 江苏冠达通电子科技有限公司 | The adjustment Zooming method of video camera |
| CN110044289A (en) * | 2019-04-17 | 2019-07-23 | 上海同岩土木工程科技股份有限公司 | The multibreak face convergent deformation video monitoring device in tunnel and method based on autozoom |
| CN110113512A (en) * | 2018-02-01 | 2019-08-09 | 佳能株式会社 | Picture pick-up device and its focus adjustment method and storage medium |
| CN110572577A (en) * | 2019-09-24 | 2019-12-13 | 浙江大华技术股份有限公司 | Method, device, equipment and medium for tracking and focusing |
| CN110830710A (en) * | 2018-08-14 | 2020-02-21 | 高新兴科技集团股份有限公司 | Focusing method of super-long focal length lens |
| CN110971810A (en) * | 2018-09-29 | 2020-04-07 | 浙江宇视科技有限公司 | Movement lens return path difference processing method and device |
| WO2020108284A1 (en) * | 2018-11-28 | 2020-06-04 | 深圳市大疆创新科技有限公司 | Determining device, moving object, determining method, and program |
| CN113347335A (en) * | 2021-05-31 | 2021-09-03 | 浙江大华技术股份有限公司 | Focusing method, device, electronic equipment and storage medium |
| WO2021196208A1 (en) * | 2020-04-03 | 2021-10-07 | 深圳市大疆创新科技有限公司 | Image processing method, zoom camera, camera load device, and unmanned aerial vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405615A (en) * | 2001-08-09 | 2003-03-26 | 松下电器产业株式会社 | Picture pick-up device and lens driving method thereof and picture pick-up system |
| CN1611975A (en) * | 2003-09-02 | 2005-05-04 | 佳能株式会社 | Imaging apparatus |
| CN101154016A (en) * | 2006-09-27 | 2008-04-02 | 富士通株式会社 | Imaging apparatus with af optical zoom |
| CN102156350A (en) * | 2010-02-12 | 2011-08-17 | 北方国通（北京）光电科技有限公司 | Camera device and design method thereof |
| JP2013109034A (en) * | 2011-11-17 | 2013-06-06 | Sony Corp | Imaging apparatus, imaging control method, and program |
-
2014
- 2014-08-25 CN CN201410423054.9A patent/CN104202518A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405615A (en) * | 2001-08-09 | 2003-03-26 | 松下电器产业株式会社 | Picture pick-up device and lens driving method thereof and picture pick-up system |
| CN1611975A (en) * | 2003-09-02 | 2005-05-04 | 佳能株式会社 | Imaging apparatus |
| CN101154016A (en) * | 2006-09-27 | 2008-04-02 | 富士通株式会社 | Imaging apparatus with af optical zoom |
| CN102156350A (en) * | 2010-02-12 | 2011-08-17 | 北方国通（北京）光电科技有限公司 | Camera device and design method thereof |
| JP2013109034A (en) * | 2011-11-17 | 2013-06-06 | Sony Corp | Imaging apparatus, imaging control method, and program |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980661A (en) * | 2015-07-10 | 2015-10-14 | 武汉烽火众智数字技术有限责任公司 | Method and apparatus for self-correcting camera lens |
| CN104980661B (en) * | 2015-07-10 | 2018-10-09 | 武汉烽火众智数字技术有限责任公司 | A kind of method and apparatus of pick-up lens self-correcting |
| CN106385534A (en) * | 2016-09-06 | 2017-02-08 | 努比亚技术有限公司 | Focusing method and terminal |
| CN107483820A (en) * | 2017-08-23 | 2017-12-15 | 福建星瑞格软件有限公司 | A kind of quick focus method and device of the focusing of contrast formula |
| CN108200344A (en) * | 2018-01-23 | 2018-06-22 | 江苏冠达通电子科技有限公司 | The adjustment Zooming method of video camera |
| US11190676B2 (en) | 2018-02-01 | 2021-11-30 | Canon Kabushiki Kaisha | Image capture apparatus and focusing adjustment method for same |
| CN110113512A (en) * | 2018-02-01 | 2019-08-09 | 佳能株式会社 | Picture pick-up device and its focus adjustment method and storage medium |
| CN110113512B (en) * | 2018-02-01 | 2021-07-23 | 佳能株式会社 | Image pickup apparatus, focusing method thereof, and storage medium |
| CN110830710A (en) * | 2018-08-14 | 2020-02-21 | 高新兴科技集团股份有限公司 | Focusing method of super-long focal length lens |
| CN110830710B (en) * | 2018-08-14 | 2023-07-11 | 高新兴科技集团股份有限公司 | Focusing method of ultra-long focal lens |
| CN110971810A (en) * | 2018-09-29 | 2020-04-07 | 浙江宇视科技有限公司 | Movement lens return path difference processing method and device |
| CN110971810B (en) * | 2018-09-29 | 2021-06-22 | 浙江宇视科技有限公司 | Movement lens return path difference processing method and device |
| WO2020108284A1 (en) * | 2018-11-28 | 2020-06-04 | 深圳市大疆创新科技有限公司 | Determining device, moving object, determining method, and program |
| CN110044289A (en) * | 2019-04-17 | 2019-07-23 | 上海同岩土木工程科技股份有限公司 | The multibreak face convergent deformation video monitoring device in tunnel and method based on autozoom |
| CN110572577B (en) * | 2019-09-24 | 2021-04-16 | 浙江大华技术股份有限公司 | Method, device, equipment and medium for tracking and focusing |
| CN110572577A (en) * | 2019-09-24 | 2019-12-13 | 浙江大华技术股份有限公司 | Method, device, equipment and medium for tracking and focusing |
| WO2021196208A1 (en) * | 2020-04-03 | 2021-10-07 | 深圳市大疆创新科技有限公司 | Image processing method, zoom camera, camera load device, and unmanned aerial vehicle |
| CN113347335A (en) * | 2021-05-31 | 2021-09-03 | 浙江大华技术股份有限公司 | Focusing method, device, electronic equipment and storage medium |
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