CN103795927B - Photographing method and system - Google Patents
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Abstract
The invention discloses a photographing method and system. The photographing method includes the steps of A, detecting objects, with the high identification degree, in a preview area scene, calculating focusing distances of the objects, and setting corresponding fault-tolerant distances according to the focusing distances to obtain focusing processes with fault-tolerant areas, and B, setting focal distances to be corresponding numerical values according to the focusing processes, recording and saving image frames captured in the motion process of a focusing mechanism, calling the corresponding image frames according to selecting commands of users, and conducting displaying. By means of the photographing method, even though a motion object is photographed or a photographing terminal shakes, the image frames with clear focusing can be obtained in the later period by selecting appropriate focusing images, and the photographing method and system are suitable for conducting photographing in various severe environments.
Description
Technical field
The present invention relates to image taking field, more particularly, to a kind of photographic method and system.
Background technology
In prior art, typically by the way of prefocusing, that is, user chose focusing before shooting to shooting image
Object, adjusted Focusing mechanism before action is taken pictures in execution and by mobile for focus to specifying on focusing object, then executes and take pictures
Action is to obtain the most clear picture.Prior art is typically only applicable to static shoot, quick in the case of environmental condition is preferable
When shooting under moving scene and the poor environment of contrast, said method often stably cannot carry out focus calculation thus leading
Cause shoot after image blurring, focus forbidden, and focus once fixation just cannot change, photographer cannot by the later stage adjustment acquisition
Stable clearly image.
Therefore, prior art has yet to be improved and developed.
Content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of photographic method and system are it is intended to solve
Certainly existing photographic method is not suitable for fast motion scenes and the problem of the poor environment of contrast.
Technical scheme is as follows：
A kind of photographic method, wherein, including step：
The high object of resolution in A, detection preview area scene, and calculate the focal distance of each object, according to described right
Defocus distance arranges the focusing process that corresponding fault-tolerance distance obtains having fault-tolerant region；
B, according to described focusing process, focal length is arranged respective value, record in Focusing mechanism motor process and capture
Picture frame and preserve, corresponding picture frame is transferred according to the selection of user instruction, and is shown.
Described photographic method, wherein, described step A specifically includes：
A1, preview area is divided into some preview subregions and by screen area be divided into some with preview subregion
One-to-one screen subregion, and each preview subregion is associated mating with screen all subregion；
The high object of resolution in A2, each preview subregion scene of detection, and calculate the focal distance of each object；
A3, according to predetermined step value, the focusing arranging a segment distance before and after each focal distance and obtain having fault-tolerant region is entered
Journey.
Described photographic method, wherein, described step B specifically includes：
B1, calculated each focusing process is ranked up, and focal length is arranged focusing by motion Focusing mechanism successively
The corresponding numerical value of process；
B2, record in Focusing mechanism motor process catch picture frame and preserve；
B3, according to user the click on area on screen, select corresponding preview subregion focusing process under image
Frame data, and be shown.
Described photographic method, wherein, described step A1 also includes：
Preview subregion is divided further into some preview zonules, and screen subregion is divided further into some
With preview zonule one-to-one screen zonule, and each with screen for each preview zonule zonule is associated mating.
Described photographic method, wherein, described step B3 specifically includes：
B31, according to user the click on area on screen, choose corresponding preview subregion focusing process in fault-tolerant area
All image frame data under domain；
B32, all image frame data chosen are shown in order, and the instruction according to user, select required
Picture frame.
A kind of camera system, wherein, including：
Focusing process setup module, for detecting the high object of resolution in preview area scene, and calculates each object
Focal distance, arranges, according to described focal distance, the focusing process that corresponding fault-tolerance distance obtains having fault-tolerant region；
Picture frame display module, for focal length being arranged respective value according to described focusing process, records focusing machine
The picture frame that captures in structure motor process simultaneously preserves, and transfers corresponding picture frame according to the selection instruction of user, and is opened up
Show.
Described camera system, wherein, described focusing process setup module specifically includes：
Carving culture unit, if for being divided into some preview subregions by preview area and being divided into screen area
Dry with preview subregion one-to-one screen subregion, and each preview subregion and screen all subregion are associated
Join；
Focal distance detector unit, for detecting the high object of resolution in each preview subregion scene, and calculates each thing
The focal distance of body；
Fault-tolerant processing unit, for obtaining with appearance to arranging a segment distance before and after each focal distance according to predetermined step value
The focusing process in wrong region.
Described camera system, wherein, described image frame display module specifically includes：
Focusing mechanism moving cell, for being ranked up to calculated each focusing process, and motion focusing machine successively
Focal length is arranged the corresponding numerical value of focusing process by structure；
Picture frame recording unit, for recording the picture frame capturing in Focusing mechanism motor process and preserving；
Picture frame display unit, for the click on area on screen according to user, selects corresponding preview subregion
Image frame data under focusing process, and be shown.
Described camera system, wherein, described carving culture unit also includes：
Carving culture subelement is for being divided further into some preview zonules by preview subregion and screen is sub
Region is divided further into some and preview zonule one-to-one screen zonule, and will be each with screen for each preview zonule
Zonule is associated mating.
Described camera system, wherein, described image frame display unit specifically includes：
Image frame data chooses subelement, for the click on area on screen according to user, chooses corresponding preview
All image frame data under fault-tolerant region for the focusing process in region；
Image frame display subelement, for being shown all image frame data chosen in order, and according to user
Instruction, select required picture frame.
Beneficial effect：The present invention passes through to detect the high object of resolution in preview area scene, and calculates the right of each object
Defocus distance, the focal distance according to each object arranges the focusing process that corresponding fault-tolerance distance obtains having fault-tolerant region；According to
Focal length is arranged respective value by the focusing process obtaining, and records each object capturing in Focusing mechanism motor process
Picture frame, accordingly even when in the case of shooting moving object or camera terminal shake itself, also can pass through to choose in the later stage
Suitable image, obtains focusing clearly picture frame, is suitable for the shooting under various adverse circumstances.
Brief description
Fig. 1 is a kind of flow chart of present invention photographic method preferred embodiment.
Fig. 2 is the particular flow sheet of step S101 in method shown in Fig. 1.
Fig. 3 is preview area segmentation schematic diagram in the method for the present invention.
Fig. 4 is fault-tolerance distance setting schematic diagram in the method for the present invention.
Fig. 5 is the particular flow sheet of step S102 in method shown in Fig. 1.
Fig. 6 is the interface schematic diagram that in the method for the present invention, user clicks on during screen area.
Fig. 7 is the interface schematic diagram that in the method for the present invention, user clicks on after screen area.
Fig. 8 be the method for the present invention in preview subregion carry out Further Division after segmentation schematic diagram.
Fig. 9 is the particular flow sheet of step S203 in method shown in Fig. 5.
Figure 10 is a kind of structured flowchart of present invention camera system preferred embodiment.
Figure 11 is the concrete structure block diagram of focusing process setup module in system shown in Figure 10.
Figure 12 is the concrete structure block diagram of picture frame display module in system shown in Figure 10.
Figure 13 is the concrete structure block diagram of picture frame display unit in module shown in Figure 12.
Specific embodiment
The present invention provides a kind of photographic method and system, for make the purpose of the present invention, technical scheme and effect clearer,
Clearly, the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only in order to explain this
Invention, is not intended to limit the present invention.
Refer to Fig. 1, Fig. 1 is a kind of flow chart of present invention photographic method preferred embodiment, as illustrated, it includes walking
Suddenly：
The high object of resolution in S101, detection preview area scene, and calculate the focal distance of each object, according to described
Focal distance arranges the focusing process that corresponding fault-tolerance distance obtains having fault-tolerant region；
S102, according to described focusing process, focal length is arranged respective value, record in Focusing mechanism motor process and catch
The picture frame grasped simultaneously preserves, and transfers corresponding picture frame according to the selection instruction of user, and is shown.
In above-described embodiment, the first high object of resolution in the scene of detection preview area, and calculate the focusing of each object
Distance, first determines the focusing position of the high object of resolution, as the detection of the high object of resolution, can pass through prior art
In image detection realizing, therefore do not repeat herein.Then according to the focal distance of each object arranges corresponding fault-tolerance distance,
Thus obtaining the focusing process with fault-tolerant region of each object, the extremely corresponding numerical value of focal length is set using this focusing process, from
And obtain all picture frames of each object capturing in the whole motor process of Focusing mechanism, corresponding image is selected by user
Frame, and be shown, that is, after having clapped photograph, user can shoot for each object according to capturing in Focusing mechanism motor process
Multiple picture frames, select required clearly picture frame.The method of the present invention is applied to various moving scenes and contrast relatively
Taking pictures under the environment of difference, even if user focuses when taking pictures being forbidden, also can choose focusing clearly image upon taking a picture again,
Make the image finally obtaining relatively sharp.
As the preferred embodiment of the present invention, as shown in Fig. 2 described step S101 specifically includes：
S201, preview area is divided into some preview subregions and by screen area be divided into some with preview sub-district
Domain one-to-one screen subregion, and each preview subregion is associated mating with screen all subregion；
This step is first preview area to be divided into some preview subregions, as shown in figure 3, can be divided into preview area
Several continuous preview subregions, and an index value can be set up for each preview subregion, for example as shown in Figure 3
1st, 2,3 etc., screen area also can be divided into corresponding screen subregion it is preferable that preview subregion is located simultaneously
Position is screen subregion position, and that is, preview subregion and screen subregion that it is located correspond, and each preview
Region associates coupling with screen subregion, if so clicking screen zones of different in user afterwards, just can be associated with corresponding
Preview subregion.
The high object of resolution in S202, each preview subregion scene of detection, and calculate the focal distance of each object；
This step is the high object of resolution in the scene detect each preview subregion（Focusing object）, thus obtaining each pre-
Look at the focal distance of the high object of resolution in subregion.
S203, according to predetermined step value to arranging the focusing that a segment distance obtains having fault-tolerant region before and after each focal distance
Process.
For example, as shown in figure 4, the focal distance of the high object of a certain resolution is 1 meter, then can be right to this object
One section of fault-tolerance distance is set before and after defocus distance, such as respectively arranges 0.5 meter in front and back, that is, front fault-tolerance distance is 0.5 meter, rear fault-tolerance distance
For 0.5 meter, obtain 0.5 meter ~ 1.5 meters of focusing process, its fault-tolerance distance is 1 meter.So can improve flexible during adjustment focus
Property, under the slight scene changing of focusing object, this fault-tolerance distance is set it is ensured that focusing is more accurate.High to other resolutions
The focal distance of object also can be respectively provided with one section of fault-tolerance distance, obtain the focusing process with fault-tolerant region.
As the preferred embodiment of the present invention, as shown in figure 5, described step S102 can specifically be refined as following steps：
S301, calculated each focusing process is ranked up, and successively motion Focusing mechanism focal length is arranged right
The corresponding numerical value of burnt process；
First the focusing process being calculated each preview subregion is ranked up, and by each focusing process according in the past
Order backward is ranked up, and can merge process for the focusing process repeating, for example a certain preview subregion
In the high object of a certain resolution focusing process focal distance be 0.5 meter to 1.5 meters, the high object of another resolution right
The focal distance of burnt process is 1 meter to 2 meters, then the focal distance of the focusing process of this preview subregion can merge into 0.5 meter to 2
Rice, then makes Focusing mechanism successively focal length be arranged respective value.Due to a pair of each screen subregion and preview subregion 1
Should, so corresponding focusing process can be corresponded to by the index value of each preview subregion, that is, pass through each screen subregion
Correspond to corresponding focusing process, when user clicks on a certain screen subregion, you can obtain the image under corresponding focusing process
Frame.
Numerical value according to above-mentioned focusing process, you can determine that Focusing mechanism needs the focusing process of execution, and can transport successively
Focal length is arranged the corresponding numerical value of focusing process by dynamic Focusing mechanism, executes process of taking pictures.
S302, record the picture frame capturing in Focusing mechanism motor process and preserve；
In Focusing mechanism motor process, focusing process be arranged with multiple take pictures a little, record a gained of respectively taking pictures
The picture frame arriving, and preserve image frame data, for user afterwards according to transferring use.
S303, according to user the click on area on screen, select corresponding preview subregion focusing process under figure
As frame data, and it is shown.
Due to saving the picture frame under different focus process, and the picture frame of each focusing process corresponded to different pre-
Look at subregion, that is, corresponded to different screen subregions, so when user wishes image focusing certain object upper, can be clicked on this
The screen subregion that object is located, as shown in fig. 6, thus obtaining this object focusing clearly image, as shown in fig. 7, and by
In being provided with fault-tolerant region, so user also can obtain the apparent image under this fault-tolerant region further.
As the preferred embodiment of the present invention, described step S201 also includes：
Preview subregion is divided further into some preview zonules, and screen subregion is divided further into some
With preview zonule one-to-one screen zonule, and each with screen for each preview zonule zonule is associated mating.
As shown in figure 8, to segmentation, the preview subregion obtaining and screen subregion are further divided, so in a preview
When in subregion, the high object of resolution is more, you can divided by further, to obtain the focusing process of each object, to obtain
The apparent image of object must be corresponded to, certainly, can also more be entered one to preview zonule and screen zonule as needed
The division of step.
As the preferred embodiment of the present invention, as shown in figure 9, described step S303 specifically includes：
S401, according to user the click on area on screen, choose corresponding preview subregion focusing process fault-tolerant
All image frame data under region；
I.e. when user clicks certain screen subregion of screen, just choose this screen subregion corresponding preview sub-district
All image frame data under fault-tolerant region for the focusing process in domain.For example aforementioned focusing process institute between 0.5 meter ~ 1.5 meters
The all image frame data preserving.
S402, all image frame data chosen are shown in order, and the instruction according to user, select required
Picture frame.
This step is to be shown all image frame data transferred in order, for example, shown according to sliding type
Show, user's slip screen can show all picture frames successively, when user selects one of picture frame, this picture frame is entered
Row amplification is shown, is so achieved that more flexible focus adjustment, and has slight focal length to change without worry focusing object
Become the inaccurate problem of the image focusing bringing.
Based on said method, the present invention also provides a kind of camera system, and as shown in Figure 10, it includes：
Focusing process setup module 100, for detecting the high object of resolution in preview area scene, and calculates each object
Focal distance, corresponding fault-tolerance distance is set according to described focal distance and obtains the focusing process with fault-tolerant region；
Picture frame display module 200, for focal length being arranged respective value according to described focusing process, records focusing
The picture frame that captures during mechanism kinematic simultaneously preserves, and transfers corresponding picture frame according to the selection instruction of user, and carries out
Show.
In the present embodiment, first pass through resolution in the scene of focusing process setup module 100 detection preview area high
Object, and calculate the focal distance of each object, then according to the focal distance of each object arranges corresponding fault-tolerance distance, thus obtaining
Obtain the focusing process with fault-tolerant region of each object, using picture frame display module 200 setting focal length to corresponding numerical value, thus
Obtain all of picture frame of each object capturing in the whole motor process of Focusing mechanism, corresponding picture frame selected by user,
And be shown, that is, after having clapped photograph, user can according to capture in Focusing mechanism motor process for each object shoot
Multiple picture frames, select required clearly picture frame.The system of the present invention is applied to various moving scenes and contrast is poor
In the environment of take pictures, even if user focuses when taking pictures inaccurate, also can again choose focusing clearly image upon taking a picture, make
The final image obtaining is relatively sharp.
Further, as shown in figure 11, described focusing process setup module 100 specifically includes：
Carving culture unit 110, for being divided into some preview subregions by preview area and splitting screen area
For some with preview subregion one-to-one screen subregion, and each preview subregion and screen all subregion are associated
Coupling；
Focal distance detector unit 120, for detecting the high object of resolution in each preview subregion scene, and calculates each
The focal distance of object；
Fault-tolerant processing unit 130, for being had to arranging a segment distance before and after each focal distance according to predetermined step value
There is the focusing process in fault-tolerant region.
In the above-described embodiments, carving culture unit 110 is used for for preview area being divided into several continuous preview
Region, and an index value can be set up for each preview subregion, screen area also can be divided into corresponding simultaneously
Screen subregion, and each preview subregion associates coupling with screen subregion, if so clicking screen not in user afterwards
Same region, just can be associated with corresponding preview subregion.
Further, as shown in figure 12, described image frame display module 200 specifically includes：
Focusing mechanism moving cell 210, for being ranked up to calculated each focusing process, and motion focusing successively
Focal length is arranged the corresponding numerical value of focusing process by mechanism；
Picture frame recording unit 220, for recording the picture frame capturing in Focusing mechanism motor process and preserving；
Picture frame display unit 230, for the click on area on screen according to user, selects corresponding preview subregion
Focusing process under image frame data, and be shown.
In the above-described embodiments, due to saving the picture frame under different focus process, and the image of process of respectively focusing
Frame has corresponded to different preview subregions, that is, corresponded to different screen subregions, so when user wishes certain in image focusing
The screen subregion at this object place during individual object, can be clicked on, thus obtaining this object focusing clearly image, and due to setting
Put fault-tolerant region, so user also can obtain the apparent image under this fault-tolerant region further.
Further, described carving culture unit 110 also includes：
Carving culture subelement is for being divided further into some preview zonules by preview subregion and screen is sub
Region is divided further into some and preview zonule one-to-one screen zonule, and will be each with screen for each preview zonule
Zonule is associated mating.
Further, as shown in figure 13, described image frame display unit 230 specifically includes：
Image frame data chooses subelement 231, for the click on area on screen according to user, chooses corresponding preview
All image frame data under fault-tolerant region for the focusing process of subregion；
Image frame display subelement 232, for by choose all image frame data be shown in order, and according to
The instruction at family, selects required picture frame.The present embodiment is to be shown all image frame data transferred in order, for example
Shown according to sliding type, user's slip screen can show all picture frames successively, when user selects one of figure
During as frame, this picture frame is amplified showing, is so achieved that more flexible focus adjustment, and without worry focusing
Object has slight focal length to change the inaccurate problem of the image focusing bringing.
Ins and outs with regard to above-mentioned modular unit are described in detail in method above, therefore repeat no more.
In sum, the present invention passes through to detect the high object of resolution in preview area scene, and calculates the right of each object
Defocus distance, arranges, according to focal distance, the focusing process that corresponding fault-tolerance distance obtains having fault-tolerant region；Right according to obtain
Focal length is arranged respective value by burnt process, and records the picture frame capturing in Focusing mechanism motor process, accordingly even when
In the case of shooting moving object or camera terminal shake itself, also can pass through to choose suitable focus image in the later stage,
Obtaining focusing clearly picture frame, thus enhancing the motility of later stage adjustment focus, being suitable for the bat under various adverse circumstances
Take the photograph.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved according to the above description or to convert, all these modifications and variations all should belong to the guarantor of claims of the present invention
Shield scope.
Claims (4)
1. a kind of photographic method is it is characterised in that include step：
The high object of resolution in A, detection preview area scene, and calculate the focal distance of each object, according to described focusing
Obtain the focusing process with fault-tolerant region from the corresponding fault-tolerance distance of setting；
B, according to described focusing process, focal length is arranged respective value, record the figure capturing in Focusing mechanism motor process
As frame and preserve, corresponding picture frame is transferred according to the selection instruction of user, and is shown；
Described step A specifically includes：
A1, preview area is divided into some preview subregions and by screen area be divided into some with preview subregion one by one
Corresponding screen subregion, and each preview subregion is associated mating with screen all subregion；
The high object of resolution in A2, each preview subregion scene of detection, and calculate the focal distance of each object；
A3, according to predetermined step value to arranging the focusing process that a segment distance obtains having fault-tolerant region before and after each focal distance；
Described step B specifically includes：
B1, calculated each focusing process is ranked up, and focal length is arranged focusing process by motion Focusing mechanism successively
Corresponding numerical value；
B2, record the picture frame capturing in Focusing mechanism motor process and preserve；
B3, according to user the click on area on screen, select corresponding preview subregion focusing process under number of image frames
According to, and be shown；
Described step B3 specifically includes：
B31, according to user the click on area on screen, choose corresponding preview subregion focusing process under fault-tolerant region
All image frame data；
B32, all image frame data chosen are shown in order, and the instruction according to user, select required image
Frame.
2. photographic method according to claim 1 is it is characterised in that described step A1 also includes：
Preview subregion is divided further into some preview zonules, and screen subregion is divided further into some and pre-
Look at zonule one-to-one screen zonule, and each with screen for each preview zonule zonule is associated mating.
3. a kind of camera system is it is characterised in that include：
Focusing process setup module, for detecting the high object of resolution in preview area scene, and calculates the focusing of each object
Distance, arranges, according to described focal distance, the focusing process that corresponding fault-tolerance distance obtains having fault-tolerant region；
Picture frame display module, for focal length being arranged respective value according to described focusing process, records Focusing mechanism fortune
The picture frame that captures during dynamic simultaneously preserves, and transfers corresponding picture frame according to the selection instruction of user, and is shown；
Described focusing process setup module specifically includes：
Carving culture unit, for by preview area be divided into some preview subregions and by screen area be divided into some with
Preview subregion one-to-one screen subregion, and each preview subregion is associated mating with screen all subregion；
Focal distance detector unit, for detecting the high object of resolution in each preview subregion scene, and calculates each object
Focal distance；
Fault-tolerant processing unit, for obtaining thering is fault-tolerant area according to predetermined step value to arranging a segment distance before and after each focal distance
The focusing process in domain；
Described image frame display module specifically includes：
Focusing mechanism moving cell, for being ranked up to calculated each focusing process, and motion Focusing mechanism will successively
Focal length arranges the corresponding numerical value of focusing process；
Picture frame recording unit, for recording the picture frame capturing in Focusing mechanism motor process and preserving；
Picture frame display unit, for the click on area on screen according to user, selects the focusing of corresponding preview subregion
Image frame data under process, and be shown；
Described image frame display unit specifically includes：
Image frame data chooses subelement, for the click on area on screen according to user, chooses corresponding preview subregion
All image frame data under fault-tolerant region for the focusing process；
Image frame display subelement, for all image frame data chosen are shown in order, and the finger according to user
Order, selects required picture frame.
4. camera system according to claim 3 is it is characterised in that described carving culture unit also includes：
Carving culture subelement, for being divided further into some preview zonules by preview subregion, and by screen subregion
Be divided further into some with preview zonule one-to-one screen zonule, and by each preview zonule and each cell of screen
Domain is associated mating.
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| CN104243827A (en) * | 2014-09-23 | 2014-12-24 | 深圳市中兴移动通信有限公司 | Shooting method and device |
| CN105657240A (en) * | 2015-06-29 | 2016-06-08 | 宇龙计算机通信科技(深圳)有限公司 | Photographing method and device |
| CN105120153B (en) * | 2015-08-20 | 2018-01-19 | 广东欧珀移动通信有限公司 | A kind of image capturing method and device |
| WO2017091957A1 (en) * | 2015-11-30 | 2017-06-08 | SZ DJI Technology Co., Ltd. | Imaging system and method |
| CN114449152B (en) * | 2020-10-30 | 2023-09-22 | 北京小米移动软件有限公司 | Focusing method, focusing device, electronic equipment and storage medium |
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| CN102523376A (en) * | 2011-12-06 | 2012-06-27 | 鸿富锦精密工业（深圳）有限公司 | Shooting equipment and method |
| WO2013158456A1 (en) * | 2012-04-17 | 2013-10-24 | E-Vision Smart Optics, Inc. | Systems, devices, and methods for managing camera focus |
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