CN108200344A - The adjustment Zooming method of video camera - Google Patents
The adjustment Zooming method of video camera Download PDFInfo
- Publication number
- CN108200344A CN108200344A CN201810065033.2A CN201810065033A CN108200344A CN 108200344 A CN108200344 A CN 108200344A CN 201810065033 A CN201810065033 A CN 201810065033A CN 108200344 A CN108200344 A CN 108200344A
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- video camera
- shooting
- image
- adjustment
- outline data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses a kind of adjustment Zooming methods of video camera, select initial point A and target point B；First initial point A is focused, starts focus motor, and be focused with the profile object in the focus point, and then obtains a clear image of initial point A, forms a outline data, and this part of outline data is preserved to video camera；Then shooting is focused to target point B, video camera can parse upper a outline data, the high data of wherein pixel are filled into the shooting image, advanced optimize video camera shooting quality.In the case of in camera picture there are the subject of different distance, it can be compared by the camera shooting figure of front and rear two different object distances, the camera shooting figure of above-mentioned different object distances is respectively provided with and multiple treats focal zone, the high part of pixel in the two overlapping region is filled into using smooth manner in current camera picture, image frame unintelligible problem during so as to avoid occurring in existing take pictures different object distances.
Description
Technical field
The present invention relates to image acquisition technology field more particularly to a kind of adjustment Zooming methods of video camera.
Background technology
At present, user shoots the image of subject frequently by video camera.Since object distance often changes,
Can usually field depth be exceeded and image is caused to obscure.In order to which image is made to keep clear, it just must constantly change the focus of camera lens
Position makes imaging surface fall within depth of focus always.Its operation principle is to make it will clearly to adjust camera lens focus using motor
Image is mapped to sensor, then carries out image processing by the image that sensor receives and pass through display to be presented image again
Out.
However in the prior art if in camera picture there are the subject of different distance in the case of, can not effectively exist
Remote subject and closely between subject adjust focal object so that shooting closely subject when, quilt at a distance
It takes the photograph body and focus blur phenomenon occurs；When shooting remote subject, if closely the size of subject is not big enough in visual angle then
Closely subject can not be focused on.
Invention content
To overcome disadvantages mentioned above, the purpose of the present invention is to provide a kind of adjustment Zooming methods of video camera, can identify
The subject of different object distances, and can clearly carry out adjusting focal object adjustment between wide-long shot and shooting at close range.
In order to reach object above, the technical solution adopted by the present invention is：A kind of adjustment Zooming method of video camera, packet
It includes：
Step 1, will closely in subject or remote subject one be used as initial point A, another is as target point
B；First initial point A is focused, video camera can draw a circle to approve a focusing range, and the image generation in the focusing range is several
A small area treats focal zone, video camera obtain it is each after the outline data of focal zone can to it is above-mentioned treat focal zone into
Row reconfigures, and profile diagram is formed in video camera；
Step 2, the profile for choosing profile diagram inner area maximum start focus motor, and with the focus point as focus point
Interior profile object is focused, and then obtains the clear image of initial point A, forms a outline data, and by this part of profile
Data are preserved to video camera；
Step 3, when change reference object, when needing to shoot target point B, focus motor can change the coke of shooting
Away from the clear image of the subject can be shot；Simultaneous camera can parse upper a outline data, will wherein
The high data of pixel are filled into the shooting image, advanced optimize video camera shooting quality, and are formed current outline data and deposited
Enter video camera.
Preferably, lower section is provided with one group of transmitter in the camera lens, sends out infrared ray or ultrasonic wave, through shot
After object emission is returned, then received by the infrared ray sensor or ultrasonic sensor of video camera, so as to determine distance,
Focus motor adjusts the focal length of shooting according to the distance of measure.
Preferably, focus motor changes shooting focal length, if zooming direction is object distance augment direction, performs the first adjustment mould
Block if zooming direction reduces direction for object distance, performs second adjustment module；
The first adjustment module, for adjusting f-number as F1,
The first adjustment module, for adjusting f-number as F2,
Wherein, c is allows disperse circular diameter, initial focal lengths of the f for focus motor, the object distance L of initial point A1, become defocused mesh
The object distance L of punctuate B2。
Preferably, aperture adjustment module is additionally provided in video camera, for according to focal length f, object distance L1With object distance L2Come real-time
F-number is adjusted, so that target point B is fallen in the field depth of initial point A.
Preferably, when upper a outline data is filled into current taken image by video camera, the color of subject is evaluated first
Average value and deviation use smoothing method by the picture in the upper a outline data in part for the unclear place of subject shooting
Prime number evidence is filled into current taken image.
Preferably, several regions are divided into firstly the need of by current taken image when filling into data, and in video camera
Pixel image in adjacent area is integrated, the position deviated according to camera lens is come the determining camera lens with upper a outline data
Which overlapping region region has, and pixel data comparison is carried out, and then in upper a outline data for the image in overlapping region
Partial data entirely in present image.
Preferably, sentenced according to level value of the optocoupler in video camera in two opposite orientation location points of initial point A
Whether the video camera that breaks is focus motor desynchronizing state.
Preferably, if desynchronizing state occurs in focus motor, given x compensation coefficients and y compensation coefficients, video camera are becoming
The backward x directions of burnt completion, y directions movement predetermined distance.
The present invention by camera picture there are the subject of different distance in the case of, front and rear two differences can be passed through
The camera shooting figure of object distance is compared, by the camera shooting figure of above-mentioned different object distances be respectively provided with it is multiple treat focal zone, the two is overlapped into area
The high part of pixel is filled into using smooth manner in current camera picture in domain, so as to avoid different object distances occur in existing take pictures
When the unintelligible problem of image frame.
Description of the drawings
Fig. 1 is the outflow schematic diagram of the embodiment of the present invention.
Specific embodiment
The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Embodiment
Referring to shown in attached drawing 1, a kind of adjustment Zooming method of video camera in the present embodiment, including：
S1, will closely in subject or remote subject one be used as initial point A, another is as target point B；First
Initial point A is focused, video camera can draw a circle to approve a focusing range, and it is small that the image in the focusing range is generated several
Area treats focal zone, and video camera obtains each meeting after the outline data of focal zone and treat that focal zone carries out weight to above-mentioned
Combination nova, and profile diagram is formed in video camera；
S2, the profile for choosing profile diagram inner area maximum start focus motor, and in the focus point as focus point
Profile object is focused, and then obtains the clear image of initial point A, forms a outline data, and by this part of outline data
It preserves to video camera；
S3, when change reference object, when needing to shoot target point B, focus motor can change the focal length of shooting, make
It can shoot the clear image of the subject；Simultaneous camera can parse upper a outline data, will wherein pixel
High data are filled into the shooting image, advanced optimize video camera shooting quality, and are formed the deposit of current outline data and taken the photograph
Camera.It is above-mentioned to be divided into several regions, and be adjacent in video camera firstly the need of by current taken image when filling into data
Pixel image in region is integrated, and the position deviated according to camera lens has to determine the lens area with upper a outline data
Which overlapping region carries out pixel data comparison, and then the part in upper a outline data for the image in overlapping region
Data are entirely in present image.
Lower section is provided with one group of transmitter in camera lens in the present embodiment, infrared ray or ultrasonic wave is sent out, through quilt
Take the photograph after object emission returns, then received by the infrared ray sensor or ultrasonic sensor of video camera, so as to determine away from
From focus motor adjusts the focal length of shooting according to the distance of measure.When focus motor change shooting focal length, if zooming direction is
Object distance augment direction then performs the first adjustment module, if zooming direction reduces direction for object distance, performs second adjustment module；
The first adjustment module, for adjusting f-number as F1,
The first adjustment module, for adjusting f-number as F2,
Wherein, c is allows disperse circular diameter, initial focal lengths of the f for focus motor, the object distance L of initial point A1, become defocused mesh
The object distance L of punctuate B2。
Aperture adjustment module is additionally provided in video camera in the present embodiment, for according to focal length f, object distance L1With object distance L2
F-number is adjusted in real time, so that target point B is fallen in the field depth of initial point A.
Preferably, when upper a outline data is filled into current taken image by video camera, the color of subject is evaluated first
Average value and deviation use smoothing method by the picture in the upper a outline data in part for the unclear place of subject shooting
Prime number evidence is filled into current taken image.
Focus motor is the key that obtain good shooting to focus on, and needs to calibrate it thus.It is specific as follows：According to taking the photograph
Optocoupler in camera judges whether the video camera is focusing in the level value of two opposite orientation location points of initial point A
Motor desynchronizing state；If desynchronizing state occurs in focus motor, x compensation coefficients and y compensation coefficients are given, video camera is in zoom
The backward x directions of completion, y directions movement predetermined distance, so as to obtain good shooting effect.
The present invention by camera picture there are the subject of different distance in the case of, front and rear two differences can be passed through
The camera shooting figure of object distance is compared, by the camera shooting figure of above-mentioned different object distances be respectively provided with it is multiple treat focal zone, the two is overlapped into area
The high part of pixel is filled into using smooth manner in current camera picture in domain, so as to avoid different object distances occur in existing take pictures
When the unintelligible problem of image frame.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with technique
People understands present disclosure and is implemented, and it is not intended to limit the scope of the present invention, all according to spirit of the invention
The equivalent change or modification that essence is done should all cover within the scope of the present invention.
Claims (8)
1. a kind of adjustment Zooming method of video camera, which is characterized in that the method includes：
Step 1, will closely in subject or remote subject one be used as initial point A, another is as target point B；First
Initial point A is focused, video camera can draw a circle to approve a focusing range, and it is small that the image in the focusing range is generated several
Area treats focal zone, and video camera obtains each meeting after the outline data of focal zone and treat that focal zone carries out weight to above-mentioned
Combination nova, and profile diagram is formed in video camera；
Step 2, the profile for choosing profile diagram inner area maximum start focus motor, and in the focus point as focus point
Profile object is focused, and then obtains the clear image of initial point A, forms a outline data, and by this part of outline data
It preserves to video camera；
Step 3, when change reference object, when needing to shoot target point B, focus motor can change the focal length of shooting, make
It can shoot the clear image of the subject；Simultaneous camera can parse upper a outline data, will wherein pixel
High data are filled into the shooting image, advanced optimize video camera shooting quality, and are formed the deposit of current outline data and taken the photograph
Camera.
2. adjustment Zooming method according to claim 1, it is characterised in that：Lower section is provided with one group of hair in camera lens
Emitter sends out infrared ray or ultrasonic wave, after subject fires back, then infrared ray sensor or ultrasonic wave by video camera
Sensor receives, and so as to determine distance, focus motor adjusts the focal length of shooting according to the distance of measure.
3. adjustment Zooming method according to claim 2, it is characterised in that：Focus motor changes shooting focal length, if zoom
Direction is object distance augment direction, then performs the first adjustment module, if zooming direction reduces direction for object distance, performs second adjustment
Module；
The first adjustment module, for adjusting f-number as F1,
The first adjustment module, for adjusting f-number as F2,
Wherein, c is allows disperse circular diameter, initial focal lengths of the f for focus motor, the object distance L of initial point A1, become defocused target point B
Object distance L2。
4. adjustment Zooming method according to claim 3, it is characterised in that：Aperture adjustment mould is additionally provided in video camera
Block, for according to focal length f, object distance L1With object distance L2F-number is adjusted in real time, so that target point B falls the depth of field in initial point A
In the range of.
5. adjustment Zooming method according to claim 1, it is characterised in that：Video camera, which fills into upper a outline data, works as
During preceding shooting image, the color average value and deviation of subject are evaluated first, and the place do not known for subject shooting uses
Smoothing method fills into the pixel data in the upper a outline data in part into current taken image.
6. adjustment Zooming method according to claim 5, it is characterised in that：Firstly the need of by current shooting when filling into data
Image is divided into several regions, and integrates the pixel image in adjacent area in video camera, is deviated according to camera lens
Position determine which overlapping region the lens area with upper a outline data has, and carries out for the image in overlapping region
Pixel data compares, and then the partial data in upper a outline data is entirely in present image.
7. adjustment Zooming method according to claim 1, it is characterised in that：According to the optocoupler in video camera initial
The level value of two opposite orientation location points of point A judges whether the video camera is focus motor desynchronizing state.
8. adjustment Zooming method according to claim 7, it is characterised in that：If there is desynchronizing state in focus motor,
Given x compensation coefficients and y compensation coefficients, video camera is in the rear to x directions, y directions movement predetermined distance of zoom completion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810065033.2A CN108200344A (en) | 2018-01-23 | 2018-01-23 | The adjustment Zooming method of video camera |
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| CN201810065033.2A CN108200344A (en) | 2018-01-23 | 2018-01-23 | The adjustment Zooming method of video camera |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110072064A (en) * | 2019-06-12 | 2019-07-30 | 睿魔智能科技（深圳）有限公司 | A kind of image capturing method, device, equipment and storage medium |
| 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 |
| CN113411568A (en) * | 2021-06-10 | 2021-09-17 | 浙江大华技术股份有限公司 | Motor step-out detection method and device, storage medium and electronic device |
| CN114026493A (en) * | 2019-12-13 | 2022-02-08 | 索尼集团公司 | Extracting a subject from a background |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984186A (en) * | 2014-05-04 | 2014-08-13 | 深圳市阿格斯科技有限公司 | Optical zooming vidicon and automatic focusing control method and device thereof |
| CN104202518A (en) * | 2014-08-25 | 2014-12-10 | 深圳市菲特数码技术有限公司 | Zooming method and system of integrated video camera |
| CN104243828A (en) * | 2014-09-24 | 2014-12-24 | 宇龙计算机通信科技(深圳)有限公司 | Method, device and terminal for shooting pictures |
| US20150326798A1 (en) * | 2014-05-12 | 2015-11-12 | Olympus Corporation | Imaging device and imaging method |
| CN105474622A (en) * | 2013-08-30 | 2016-04-06 | 高通股份有限公司 | Method and apparatus for generating an all-in-focus image |
| CN105578045A (en) * | 2015-12-23 | 2016-05-11 | 努比亚技术有限公司 | Terminal and shooting method of terminal |
| CN107105132A (en) * | 2017-03-23 | 2017-08-29 | 浙江大华技术股份有限公司 | A kind of method and device for adjusting Zoom camera precision |
-
2018
- 2018-01-23 CN CN201810065033.2A patent/CN108200344A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105474622A (en) * | 2013-08-30 | 2016-04-06 | 高通股份有限公司 | Method and apparatus for generating an all-in-focus image |
| CN103984186A (en) * | 2014-05-04 | 2014-08-13 | 深圳市阿格斯科技有限公司 | Optical zooming vidicon and automatic focusing control method and device thereof |
| US20150326798A1 (en) * | 2014-05-12 | 2015-11-12 | Olympus Corporation | Imaging device and imaging method |
| CN104202518A (en) * | 2014-08-25 | 2014-12-10 | 深圳市菲特数码技术有限公司 | Zooming method and system of integrated video camera |
| CN104243828A (en) * | 2014-09-24 | 2014-12-24 | 宇龙计算机通信科技(深圳)有限公司 | Method, device and terminal for shooting pictures |
| CN105578045A (en) * | 2015-12-23 | 2016-05-11 | 努比亚技术有限公司 | Terminal and shooting method of terminal |
| CN107105132A (en) * | 2017-03-23 | 2017-08-29 | 浙江大华技术股份有限公司 | A kind of method and device for adjusting Zoom camera precision |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110072064A (en) * | 2019-06-12 | 2019-07-30 | 睿魔智能科技（深圳）有限公司 | A kind of image capturing method, device, equipment and storage medium |
| US11736800B2 (en) | 2019-06-12 | 2023-08-22 | Remo Tech Co., Ltd. | Method, apparatus, and device for image capture, and storage medium |
| CN114026493A (en) * | 2019-12-13 | 2022-02-08 | 索尼集团公司 | Extracting a subject from a background |
| 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 |
| CN113411568A (en) * | 2021-06-10 | 2021-09-17 | 浙江大华技术股份有限公司 | Motor step-out detection method and device, storage medium and electronic device |
| CN113411568B (en) * | 2021-06-10 | 2022-06-14 | 浙江大华技术股份有限公司 | Motor step-out detection method and device, storage medium and electronic device |
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Application publication date: 20180622 |