CN108111752A - video capture method, device and mobile terminal - Google Patents
video capture method, device and mobile terminal Download PDFInfo
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- CN108111752A CN108111752A CN201711321366.9A CN201711321366A CN108111752A CN 108111752 A CN108111752 A CN 108111752A CN 201711321366 A CN201711321366 A CN 201711321366A CN 108111752 A CN108111752 A CN 108111752A
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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
- H04N23/64—Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
- G06V20/46—Extracting features or characteristics from the video content, e.g. video fingerprints, representative shots or key frames
- G06V20/47—Detecting features for summarising video content
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
- G06V20/48—Matching video sequences
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- 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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Abstract
The present invention provides a kind of video capture method, device and mobile terminal.This method includes：When receiving video pause shooting instruction, acquisition has shot a last at least two field picture in video segment；A frame target image in a finally at least two field picture is included into the shooting preview interface in mobile terminal to preset transparency；The present image that the camera of mobile terminal is gathered is included in shooting preview interface；When receiving video recovery shooting instruction, judge whether the matching degree of a frame target image and present image is more than preset matching degree threshold value；If so, by the video segment of current shooting and having shot video segment progress video-splicing, video data is obtained.The present invention by the frame target image shot in video segment in a last at least two field picture and the present image for collecting camera by being shown in the shooting preview interface so that there is no the problem of flating at the pause in the video data shot after interruption.
Description
Technical field
The present invention relates to technical field of video processing more particularly to a kind of video capture method, device and mobile terminal.
Background technology
At present, user is during using mobile terminal to carry out video capture, because a variety of causes can exist to shooting
Video suspended, be then further continued for being shot.When so pause is further continued for shooting, there can be the video that shooting obtains and exist
Can there are problems that video jitter during broadcasting at pause or there is the trace of shearing.Its reason mainly includes：Mobile terminal
It camera lens orientation can not be accurately just the same with the camera lens orientation of that time before pause；The object being taken is generally pair of activity
As (such as people, animal etc.), it is also impossible to consistent with the state before pause.
In view of the above-mentioned problems, the solution that the prior art provides is mainly including following two：Scheme one is shot to interrupting
The special effect processing that there is the video of shake or shearing traces to carry out later stage editing obtained afterwards, so as to eliminate to a certain extent
Jitter phenomenon.But this solution needs to be further processed the video progress later stage that shooting is completed so that later stage editing
Cost and technical difficulty are all higher.Scheme two makes subject (such as performer, animal etc.) recover where to pause shooting
Original position, to continue to shoot.But it is this subject is allowed to set back method difficulty it is also bigger, moreover, in order to disappear
Except video pause (interrupts) jitter problem of video at shooting, in addition to subject is needed to set back completely, also need
It is completely the same at the last moment before making the angle, height, position of the camera lens of mobile terminal that will be shot with interruption, can just it make
Continue the effect that the video that shooting obtains can not experience the shake of shearing after shooting must be interrupted.
It can be seen that in traditional technology video capture scheme in the prevalence of can not to interrupt shoot after continue shooting and regard
Frequency simply and effectively eliminates the problem of shake.
The content of the invention
The embodiment of the present invention provides a kind of video capture method, device and mobile terminal, to solve regarding in correlation technique
Present in frequency photographic schemes can not to interrupt shoot after continue shooting video simply and effectively eliminate shake the problem of.
In order to solve the above-mentioned technical problem, the present invention is realized in：
In a first aspect, an embodiment of the present invention provides a kind of video capture method, applied to mobile terminal, the method bag
It includes：
When receiving video pause shooting instruction, acquisition has shot a last at least two field picture in video segment；
A frame target image in a last at least two field picture is included with default transparency in the mobile terminal
Shooting preview interface；
The present image that the camera of the mobile terminal is gathered is included in the shooting preview interface；
When receiving video recovery shooting instruction, the matching degree of the frame target image and the present image is judged
Whether preset matching degree threshold value is more than；
If so, the video segment of current shooting and the video segment that shot are carried out video-splicing, video is obtained
Data.
It is described when a last at least two field picture includes last multiple image in a kind of possible embodiment
A frame target image in a last at least two field picture is pre- including the shooting in the mobile terminal to preset transparency
Look at interface, including：
The Characteristic Contrast degree that gets colors from last multiple image is more than a frame target image of default contrast threshold；
The one frame target image is included into the shooting preview interface in the mobile terminal to preset transparency.
It is described when a last at least two field picture includes last multiple image in a kind of possible embodiment
A frame target image in a last at least two field picture is pre- including the shooting in the mobile terminal to preset transparency
It lookes at interface, further includes：
The last multiple image is included to the shooting preview interface in the mobile terminal in turn；
According to selection operation of the user to the frame target image shown in the shooting preview interface, by the frame mesh
Logo image is shown in the shooting preview interface of the mobile terminal with default transparency.
It is described when a last at least two field picture includes last multiple image in a kind of possible embodiment
A frame target image in a last at least two field picture is pre- including the shooting in the mobile terminal to preset transparency
It lookes at after interface, the video capture method can also include：
The two field picture shot in video segment after the frame target image is deleted.
In a kind of possible embodiment, the frame target image by a last at least two field picture is with pre-
If transparency is shown in after the shooting preview interface of the mobile terminal, the video capture method can also include：
Extract the contour feature of target prospect image in the frame target image；
The profile of the target prospect image is determined according to the contour feature；
The profile of target prospect image described in the one frame target image is included in the shooting preview interface；
It is described when receiving video recovery shooting instruction, judge of the frame target image and the present image
Whether it is more than preset matching degree threshold value with degree, including：
When receiving video recovery shooting instruction, the contour feature of current foreground image in the present image is extracted；
Judging the matching degree of the contour feature and the contour feature of the current foreground image of the target prospect image is
It is no to be more than default characteristic matching degree threshold value.
In a kind of possible embodiment, the video segment by current shooting with it is described shot video segment into
Row video-splicing, obtains video data, including：
By the present image in the video segment of current shooting and the frame shot in video segment
Target image carries out video-splicing, obtains video data.
Second aspect, the embodiment of the present invention additionally provide a kind of video capture device, applied to mobile terminal, described device
Including：
Acquisition module, for when receiving video pause shooting instruction, acquisition shot in video segment it is last at least
One two field picture；
First display module, for the frame target image in a last at least two field picture to be shown with default transparency
Show the shooting preview interface in the mobile terminal；
Second display module, the present image for the camera of the mobile terminal to be gathered include pre- in the shooting
Look at interface；
Judgment module, for when receiving video recovery shooting instruction, judging that the frame target image is worked as with described
Whether the matching degree of preceding image is more than preset matching degree threshold value；
Concatenation module, if determining the matching degree of the frame target image and the present image for the judgment module
More than preset matching degree threshold value, then the video segment of current shooting and the video segment that shot are subjected to video-splicing, obtained
To video data.
In a kind of possible embodiment, first display module includes：
Submodule is chosen, for when a last at least two field picture includes last multiple image, from last multiframe figure
The Characteristic Contrast degree that gets colors as in is more than a frame target image of default contrast threshold；
First display sub-module, for being included the frame target image in the mobile terminal with default transparency
Shooting preview interface.
In a kind of possible embodiment, first display module further includes：
Second display sub-module, for when a last at least two field picture includes last multiple image, will described in most
Multiple image is shown in the shooting preview interface of the mobile terminal in turn afterwards；
3rd display sub-module, for according to choosing of the user to the frame target image shown in the shooting preview interface
Operation is selected, the frame target image is included into the shooting preview interface in the mobile terminal to preset transparency.
In a kind of possible embodiment, the video capture device further includes：
Removing module, for when a last at least two field picture includes last multiple image, described shot to be regarded
The two field picture deletion being located in frequency segment after the frame target image.
In a kind of possible embodiment, the video capture device further includes：
Extraction module, for extracting the contour feature of target prospect image in the frame target image；
Determining module, for determining the profile of the target prospect image according to the contour feature；
3rd display module, for including the profile of target prospect image described in the frame target image described
Shooting preview interface；
The judgment module includes：
Extracting sub-module, for when receiving video recovery shooting instruction, extracting current prospect in the present image
The contour feature of image；
Judging submodule, for judging the profile of the contour feature of the target prospect image and the current foreground image
Whether the matching degree of feature is more than default characteristic matching degree threshold value.
In a kind of possible embodiment, the concatenation module includes：
Splice submodule, piece of video has been shot with described for the present image in the video segment by current shooting
The frame target image in section carries out video-splicing, obtains video data.
The third aspect, the embodiment of the present invention additionally provide a kind of mobile terminal, including：It memory, processor and is stored in
On the memory and the computer program that can run on the processor, the computer program are performed by the processor
The step of Shi Shixian above-mentioned any one video capture method.
Fourth aspect, the embodiment of the present invention additionally provide a kind of computer readable storage medium, described computer-readable to deposit
Computer program is stored on storage media, the computer program realizes any one above-mentioned video capture when being executed by processor
The step of method.
In embodiments of the present invention, by after video pause shooting instruction is received, will shoot in video segment most
The frame target image at least in a two field picture is shown in shooting preview interface with default transparency afterwards, and continues to adopt by camera
Collect image, the present image collected is also shown in the shooting preview interface so that two images are shown in shooting preview
Interface, then user is only needed when seeing that two images are substantially aligned in the shooting preview interface, it is possible to it is extensive to trigger video
Multiple shooting instruction, so as to continue to shoot to the video of interruption so that in the video data shot after interruption at this temporarily
Stop place there is no the problem of flating, handled without later stage editing, it is easy to operate effective, during video capture just
Automatically video-splicing is realized.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the flow chart of the video capture method of one embodiment of the invention；
Fig. 2 is the block diagram of the video capture device of one embodiment of the invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, belongs to the scope of protection of the invention.
With reference to Fig. 1, the flow chart of the video capture method of one embodiment of the invention is shown, applied to mobile terminal,
The method specifically may include steps of：
Step 101, when receiving video pause shooting instruction, acquisition has shot a last at least frame figure in video segment
Picture；
Wherein, during mobile terminal is used to carry out video capture, if user triggers video pause operation, from
And receive video pause shooting instruction, then the method for the embodiment of the present invention can from have been taken obtaining video flowing (i.e. this
In shooting video segment) in obtain last frame image or last multiple image, a so-called last at least two field picture,
As video pause function captured last frame or last multiple image before being triggered.
Wherein, last frame image is specifically obtained in the specific implementation or obtaining last multiple image can set in advance
It puts, user as needed can flexibly be set this.
Wherein, when acquisition has shot the situation of last multiple image in video segment, the method for the embodiment of the present invention can
To pre-set the amount threshold of the multiple image, such as the amount threshold as 10, then when performing step 101, then can obtain
Last 10 two field picture in video segment is shot.
Wherein, the method for the embodiment of the present invention can preserve the last at least two field picture got, so as to just
In subsequent image display and image procossing.
Step 102, the frame target image in a last at least two field picture is included with default transparency described
The shooting preview interface of mobile terminal；
Wherein, when what is obtained in step 101 is last frame image, then the last frame image is in shooting preview
One frame target image of interface display；
And when what is obtained in step 101 is last such as 10 two field picture, then the method for the embodiment of the present invention may be employed
Any one method of the prior art selects the frame target figure that is shown in shooting preview interface from 10 two field picture
Picture.
Wherein, when showing the frame target image in shooting preview interface, can by the image to preset transparency,
Such as 60% transparency is shown.
Step 103, the present image camera of the mobile terminal gathered is included in the shooting preview interface；
Wherein, it should be noted that after video pause shooting instruction is received, the method for the embodiment of the present invention can't
It closes camera or camera is controlled to gather the stopping of present image, and do not protect the image collected data simply
It deposits.Therefore, after user triggers video pause shooting operation, the camera shooting of mobile terminal can be still aligned and be taken
Object, thus by the image display of the current subject collected in the shooting preview interface of mobile terminal.
In this way, after user triggers video pause shooting operation, shooting preview interface, which can not only be shown, triggers the video
Suspend shooting operation the last frame image taken or the two field picture selected from last multiple image before, can also show
Show the current the image collected of camera.
Wherein, since the frame target image is shown with certain transparency, user can be from shooting preview
See the frame target image and the present image clearly simultaneously in interface.
The object of reference for continuing shooting after this is shot using the frame target image that certain transparency is shown as pause is equivalent to, is used
Family can pass through the subject of camera site and/or the adjustment Dynamic Announce in shooting preview interface of mobile mobile terminal
Position, to enable the present image that the subject is shown in the shooting preview interface with being shown with certain transparency
A frame target image (i.e. last some time point before pause shooting, the appearance of the subject) be mutually aligned, that is, cause
Two images are substantially overlapping in shooting preview interface.
In the present embodiment, step 102 is performed prior to step 103, and still, the present invention is for step 102 and step 103
Execution sequence does not limit, and there may be sequencing, can also perform simultaneously.
Step 104, when receiving video recovery shooting instruction, the frame target image and the present image are judged
Matching degree whether be more than preset matching degree threshold value；
Wherein, when user thinks two images when shooting preview interface is substantially overlapping, it is possible to trigger video recovery
Shooting operation, so that the method for the embodiment of the present invention receives video recovery shooting instruction, wherein, user's human eye is to overlapping
The judgement of degree is there are certain error, therefore, in order to determine two images whether in shooting preview interface it is substantially overlapping, this
The method of inventive embodiments may determine that the matching between the present image that frame target image and the camera are currently got
Whether degree is more than preset matching degree threshold value (such as 90%).Wherein, due to the shooting preview interface of mobile terminal be it is constant, because
This, the size for two images that camera shooting the first two times collect is consistent, wherein, continue to clap after giving tacit consent to shooting of in video breaking
The acquisition parameters (such as exposure, contrast, how far etc.) of mobile terminal are not adjusted when taking the photograph, therefore, this two
The acquisition parameters of a image are consistent, are only possible to that there are the differences of subject position.
Wherein, during the matching degree of two images of calculating, any one images match degree calculating in the prior art may be employed
Method calculates their matching degree, and then judges whether the matching degree is more than preset matching degree threshold value.
If it is not, user is then prompted to continue to adjust the position of the present image.So user can continue adjustment movement
The position of terminal or subject, the present image resurveyed to be made to match with the frame target image, so as to
Continue to shoot after completing pause, achieve the effect that be continuously shot.
If so, step 105, video-splicing is carried out by the video segment of current shooting and the video segment that shot,
Obtain video data.
Wherein, if the matching degree is more than matching degree threshold value, the current state and pause that illustrate the subject are shot
The state of the preceding subject is basically identical, and two image linkings are come asking there is no video fluctuations when forming video
Topic, so, the method for the embodiment of the present invention can continue video capture to the present image that camera currently gathers, and
And the method for the embodiment of the present invention can also be by the video segment of current shooting with suspending the shooting video segment obtained before shooting
Video-splicing is carried out, so as to the video data being continuously shot.
Wherein, video-splicing technology can be any one video-splicing technology of the prior art.
In embodiments of the present invention, by after video pause shooting instruction is received, will shoot in video segment most
The frame target image at least in a two field picture is shown in shooting preview interface with default transparency afterwards, and continues to adopt by camera
Collect image, the present image collected is also shown in the shooting preview interface so that two images are shown in shooting preview
Interface, then user is only needed when seeing that two images are substantially aligned in the shooting preview interface, it is possible to it is extensive to trigger video
Multiple shooting instruction, so as to continue to shoot to the video of interruption so that in the video data shot after interruption at this temporarily
Stop place there is no the problem of flating, handled without later stage editing, it is easy to operate effective, during video capture just
Automatically video-splicing is realized.
In a kind of possible embodiment, as soon as when the last at least two field picture includes last multiple image,
It is to say, it, then can be with when performing step 102 when system is set in advance as obtaining the situation of the last multiple image before pause shooting
It is accomplished by the following way：
The Characteristic Contrast degree that gets colors from last multiple image is more than a frame target image of default contrast threshold；
Wherein, such as above-mentioned amount threshold is 10, then obtains here to last 10 two field picture, wherein, the embodiment of the present invention
Method can in 10 two field pictures per two field picture extract color characteristic, then, calculate per two field picture color characteristic comparison
Degree, finally, the contrast that color characteristic is selected from 10 two field pictures are more than a frame target image of default contrast threshold.Its
In, when being more than the default contrast threshold there are the contrast of the color characteristic of multiple image, then selected from the multiple image
Go out a two field picture of color characteristic contrast maximum as the frame target image.
Wherein, since the frame target image needs to show with certain transparency, in order to avoid the image with
The problem of user does not see after certain transparency is shown, the method for the embodiment of the present invention can select control special from 10 two field picture
Levy an obvious two field picture.
In addition, the step 101 of the embodiment of the present invention is by obtaining last multiple image also for preventing a last frame figure
During picture, if the compare feature unobvious of the last frame image, then after the last frame image is shown with certain transparency,
It is likely to cause the sightless problem of user.Such as the last frame is image when being solid-color image, then it is automatic obtain it is last
Multiple image realizes the method for the embodiment of the present invention with the scheme of the last multiple image of acquisition of the embodiment of the present invention.
Finally, the frame target image is included into the shooting preview interface in the mobile terminal to preset transparency.
In the embodiment of the present invention, got colors automatically from the last multiple image got Characteristic Contrast degree by system
A higher frame target image, and the frame target image is included with default transparency in shooting preview interface, in this way, can
During to avoid only obtaining last frame image, the presence of last frame image is fuzzy, color characteristic contrast is relatively low and causes this
After last frame image is shown with certain transparency, user does not see the image, so as to be not easy to subsequent user to two images
Alignment the problem of judging, in this way, improving the display reliability of the frame target image.
In alternatively possible embodiment, when the last at least two field picture in step 101 includes last multiframe figure
During picture, then when performing step 102, it can also be accomplished by the following way：
The last multiple image is included to the shooting preview interface in the mobile terminal in turn；
Wherein, such as the last multiple image is last 10 two field picture, can be by 10 two field picture time at certain intervals
It is shown in turn in the shooting preview interface, certainly, during showing in turn, user can also be by currently showing
One two field picture carries out sliding to switch the image currently shown to the left, to the right so that a not shown frame in above-mentioned 10 two field picture
Image is shown.
In one example, shooting preview interface can be divide into upper part and lower part display area, wherein, upper part is shown
Region is used to that the two field picture currently shown to be presented, and lower part display area is then used to present the thumbnail of 10 two field picture.
Wherein, 10 two field pictures can be sequentially displayed in upper part display area by system according to default time interval；And/or it uses
Family can also carry out slide to the thumbnail of lower part display area, so as to the contracting that will do not shown in lower part display area
Sketch map is shown, also, user can select a thumbnail from the lower part display area, so that top subregion
The two field picture that domain is shown is switched to the corresponding two field picture of the selected thumbnail.In this way, user may browse through this finally
The display effect of 10 two field pictures.
According to selection operation of the user to the frame target image shown in the shooting preview interface, by the frame mesh
Logo image is shown in the shooting preview interface of the mobile terminal with default transparency.
Wherein, user is in this last 10 two field picture is browsed after the display effect of any one frame or multiple image, when thinking
When where two field picture lines are clearer, color contrast is higher, it is possible to the frame target shown to upper part display area
Image makes choice operation, in this way, the method for the embodiment of the present invention can revert to the display mode of shooting preview interface
The display in one region hides above-mentioned thumbnail, but be chosen this in the whole region of the shooting preview interface
A frame target image shown with default transparency.
Certainly, in other examples, the last multiple image is pre- including the shooting in the mobile terminal in turn
Look at interface when, however it is not limited to the mode of above-mentioned thumbnail or other display modes in turn, the present invention to this and it is unlimited
It is fixed.
In this way, it in embodiments of the present invention, is not got colors automatically from the last multiple image got by system
The higher frame target image of Characteristic Contrast degree, but by user according to the subjective demand and naked eyes viewing effect of oneself, from
The target image that a frame is clear-cut, color contrast is higher is chosen in the last multiple image got, then, system should
One frame target image is shown in default transparency in shooting preview interface, so can be selected as ginseng according to user demand
According to a frame target image of image, the display reliability of the frame target image is improved.
In alternatively possible embodiment, when the last at least two field picture in step 101 includes last multiframe figure
During picture, after step 102, it can also include according to the method for the embodiment of the present invention：Video segment middle position has been shot by described
Two field picture after the frame target image is deleted.
That is, whether in examples detailed above a frame target image has been selected by system or user after, the present invention is real
Apply example method can by interrupt shoot before shooting obtain this shot and be located at the frame target figure that is selected in video segment
A frame or multiple image as after are deleted, i.e., the selected frame target image is updated to this and has shot video segment
In new last frame image.
In this way, when can so that subsequent video is spliced, by the clear-cut and preferable frame target image of color contrast
It is connected with the present image newly taken, promotes the shooting effect of the video of shooting.
In a kind of possible embodiment, when performing step 105, video-splicing side of the prior art may be employed
Method, by the present image (i.e. in the last frame image and the video segment of current shooting that have shot in video segment
One two field picture) video-splicing is carried out, so as to obtain video data.
And separately in a kind of possible embodiment, when performing step 105, the side of the embodiment of the present invention can also be used
Method is by the present image in the video segment of current shooting and the frame target figure shot in video segment
As carrying out video-splicing, video data is obtained.
That is, by current shooting to video segment and the video segment that has taken carry out video-splicing when,
Not by current shooting to video segment in the first two field picture (i.e. present image) it is last in video segment with having shot
One two field picture carries out video-splicing, but by current shooting to video segment in the first two field picture (i.e. present image) and
The frame target image chosen from a finally at least two field picture in shooting video segment carries out video-splicing.
Such as last 10 two field picture is obtained, and the frame target image is the 7th two field picture in last 10 two field picture,
Present image and the 7th two field picture shot in video segment are then subjected to video-splicing here, and the 8th~10 two field picture is such as
Fruit, then can be after the video data be generated without the delete processing of above-described embodiment, then deletes the 8th~10 frame figure
Picture.
In alternatively possible embodiment, when interrupt shoot before the subject that finally shoots include foreground object and
During background object, if foreground object is important, background object it is inessential or need switch background and foreground object is not changed
Situation when, then the method for the embodiment of the present invention is just without carrying out the whole image of a frame target image and the present image
Matching, and the outline of image is only carried out, therefore, after step 102 is performed, side according to embodiments of the present invention
Method can also include：
Extract the contour feature of target prospect image in the frame target image；
Wherein, a two field picture includes foreground image and background image, can extract mesh in the frame target image here
Mark foreground image contour feature, wherein, due to the color of some image outline be usually it is consistent, extraction profile
Feature can be by the color of the pixel of image come assisted extraction contour feature.
Wherein, in the present embodiment, the target prospect image by system automatic identification to, and in other embodiments,
Target prospect image is chosen in the frame target image that can also be shown by user from shooting preview interface, the present invention is to this
It does not limit.
The profile of the target prospect image is determined according to the contour feature；
Wherein it is possible to profile of the target prospect image on the frame target image is determined according to the contour feature.
The profile of target prospect image described in the one frame target image is included in the shooting preview interface；
Wherein, after which shows the frame target image shown with certain transparency, this step may be used also
The profile of the target prospect image in the frame target image to be shown in a manner of dotted line or frame.Wherein, specifically
The display methods of profile can be any one form of the prior art, and be not limited to above-mentioned dotted line, frame.
In this way, it can not only show that the frame target image can also be shown on the frame target image in shooting preview interface
The profile of main subject (i.e. target prospect image), moreover, according to step 103, which can also show and take the photograph
The present image gathered as head, then user is when the present image is aligned with the frame target image, it is possible to
The profile that will be shown again in the profile of the current foreground image in present image and the frame target image on target prospect image
It is aligned, improves the operability that user is directed at image.
Correspondingly, when performing step 104, then can be accomplished by the following way：
When receiving video recovery shooting instruction, the contour feature of current foreground image in the present image is extracted；
Wherein, after user is by adjusting the position of the shooting angle of mobile terminal and/or adjustment subject so that
User sees the mesh of the profile of current foreground image and the frame target image in the present image shown in shooting preview interface
When the profile of mark advance image is substantially aligned with, it is possible to trigger video recovery shooting instruction.Wherein, the current foreground image is with being somebody's turn to do
Target prospect image is the image of same target.Then, the method for the embodiment of the present invention can be extracted in the present image
The contour feature of current foreground image；
The method of the contour feature of specific extraction image is the prior art, and which is not described herein again.
Judging the matching degree of the contour feature and the contour feature of the current foreground image of the target prospect image is
It is no to be more than default characteristic matching degree threshold value.
Wherein, user's human eye judges there are certain error degree of overlapping, therefore, in order to determine two foreground images
It is whether substantially overlapping in shooting preview interface, before the method for the embodiment of the present invention may determine that the target of the frame target image
Between the contour feature of the current foreground image for the present image that the contour feature and camera of scape image are currently got
Whether it is more than default characteristic matching degree threshold value (such as 89%) with degree.Wherein, since the shooting preview interface of mobile terminal is not
Become, therefore, the size for two images that camera shooting the first two times collect is consistent, wherein, acquiescence is broken in video after shooting
Continue not to be adjusted the acquisition parameters (such as exposure, contrast, how far etc.) of mobile terminal during shooting, because
This, the acquisition parameters of two images are consistent, are only possible to that there are the differences of subject position.
Wherein, calculate two foreground images contour feature matching degree when, may be employed in the prior art any one
The matching degree computational methods of the contour feature of image calculate their matching degree, and then it is default to judge whether the matching degree is more than
Characteristic matching degree threshold value.
If correspondingly, of the contour feature of the target prospect image and the contour feature of the current foreground image
It is more than default characteristic matching degree threshold value with degree, then performs above-mentioned steps 105.
If the on the contrary, matching of the contour feature of the target prospect image and the contour feature of the current foreground image
Degree is less than or equal to default characteristic matching degree threshold value, then user is prompted to continue to adjust current foreground image in the present image
Position.
So user can continue to adjust the shooting angle of mobile terminal or the position of subject, to make again
The profile phase of the profile of the current foreground image of the present image collected and the target prospect image of the frame target image
Match somebody with somebody, so as to complete to continue to shoot after suspending, achieve the effect that be continuously shot.
By means of the above-mentioned technical proposal of the embodiment of the present invention, user can arbitrarily need when carrying out video capture
At the time of arbitrarily trigger pause shooting operation, and when needing to recover shooting, by compare image that camera currently gathers with
Whether the last frame image (or two field picture in last multiple image) taken before pause is consistent, if unanimously, so that it may
Shooting operation is recovered with triggering, can also be continuously shot after the interruption so as to complete video, and the video that shooting obtains does not have
The jitter problem of shearing.
It should be noted that for embodiment of the method, in order to be briefly described, therefore it is all expressed as to a series of action group
It closes, but those skilled in the art should know, the embodiment of the present invention and from the limitation of described sequence of movement, because according to
According to the embodiment of the present invention, some steps may be employed other orders or be carried out at the same time.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, and the involved action not necessarily present invention is implemented
Necessary to example.
It is corresponding with the method that the embodiments of the present invention are provided, show a kind of video capture of the present invention with reference to Fig. 2
The block diagram of device embodiment applied to mobile terminal, can specifically include following module：
Acquisition module 21, for when receiving video pause shooting instruction, acquisition shot in video segment it is last extremely
A few two field picture；
First display module 22, for the frame target image in a last at least two field picture to be preset transparency
It is shown in the shooting preview interface of the mobile terminal；
Second display module 23, the present image for the camera of the mobile terminal to be gathered are included in the shooting
Preview interface；
Judgment module 24, for when receiving video recovery shooting instruction, judge the frame target image with it is described
Whether the matching degree of present image is more than preset matching degree threshold value；
Concatenation module 25, if determining the matching of the frame target image and the present image for the judgment module
Degree is more than preset matching degree threshold value, then the video segment of current shooting and the video segment that shot is carried out video-splicing,
Obtain video data.
In a kind of possible embodiment, first display module 22 includes：
Submodule is chosen, for when a last at least two field picture includes last multiple image, from last multiframe figure
The Characteristic Contrast degree that gets colors as in is more than a frame target image of default contrast threshold；
First display sub-module, for being included the frame target image in the mobile terminal with default transparency
Shooting preview interface.
In a kind of possible embodiment, first display module 22 further includes：
Second display sub-module, for when a last at least two field picture includes last multiple image, will described in most
Multiple image is shown in the shooting preview interface of the mobile terminal in turn afterwards；
3rd display sub-module, for according to choosing of the user to the frame target image shown in the shooting preview interface
Operation is selected, the frame target image is included into the shooting preview interface in the mobile terminal to preset transparency.
In a kind of possible embodiment, the video capture device further includes：
Removing module, for when a last at least two field picture includes last multiple image, described shot to be regarded
The two field picture deletion being located in frequency segment after the frame target image.
In a kind of possible embodiment, the video capture device further includes：
Extraction module, for extracting the contour feature of target prospect image in the frame target image；
Determining module, for determining the profile of the target prospect image according to the contour feature；
3rd display module, for including the profile of target prospect image described in the frame target image described
Shooting preview interface；
The judgment module 24 includes：
Extracting sub-module, for when receiving video recovery shooting instruction, extracting current prospect in the present image
The contour feature of image；
Judging submodule, for judging the profile of the contour feature of the target prospect image and the current foreground image
Whether the matching degree of feature is more than default characteristic matching degree threshold value.
In a kind of possible embodiment, the concatenation module 25 includes：
Splice submodule, piece of video has been shot with described for the present image in the video segment by current shooting
The frame target image in section carries out video-splicing, obtains video data.
For device embodiment, since it is basicly similar to embodiment of the method, so description is fairly simple, it is related
Part illustrates referring to the part of embodiment of the method.
The embodiment of the present invention also provides a kind of mobile terminal, and including processor, memory, storage is on a memory and can be
The computer program run on the processor, the computer program realize that above-mentioned video capture method is real when being executed by processor
Each process of example is applied, and identical technique effect can be reached, to avoid repeating, which is not described herein again.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each process of above-mentioned video capture embodiment of the method, and energy when being executed by processor
Reach identical technique effect, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium, such as only
Read memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation
RAM), magnetic disc or CD etc..
Each embodiment in this specification is described by the way of progressive, the highlights of each of the examples are with
The difference of other embodiment, just to refer each other for identical similar part between each embodiment.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can be provided as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be with reference to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that it can realize flowchart and/or the block diagram by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in flow and/or box combination.These can be provided
Computer program instructions are set to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine so that is held by the processor of computer or other programmable data processing terminal equipments
Capable instruction generation is used to implement in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes
The device for the function of specifying.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing terminal equipments
In the computer-readable memory to work in a specific way so that the instruction being stored in the computer-readable memory generates bag
The manufacture of command device is included, which realizes in one flow of flow chart or multiple flows and/or one side of block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing terminal equipments so that
Series of operation steps is performed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction offer performed on computer or other programmable terminal equipments is used to implement in one flow of flow chart or multiple flows
And/or specified in one box of block diagram or multiple boxes function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, those skilled in the art once know base
This creative concept can then make these embodiments other change and modification.So appended claims are intended to be construed to
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements are not only wrapped
Those elements are included, but also including other elements that are not explicitly listed or are further included as this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, it is wanted by what sentence "including a ..." limited
Element, it is not excluded that also there are other identical elements in the process including the element, method, article or terminal device.
Above to a kind of video capture method provided by the present invention and a kind of video capture device, detailed Jie has been carried out
It continues, specific case used herein is set forth the principle of the present invention and embodiment, and the explanation of above example is only
It is the method and its core concept for being used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to this hair
Bright thought, there will be changes in specific embodiments and applications, in conclusion this specification content should not manage
It solves as limitation of the present invention.
Claims (14)
1. a kind of video capture method, applied to mobile terminal, which is characterized in that the described method includes：
When receiving video pause shooting instruction, acquisition has shot a last at least two field picture in video segment；
A frame target image in a last at least two field picture is included into the bat in the mobile terminal to preset transparency
Take the photograph preview interface；
The present image that the camera of the mobile terminal is gathered is included in the shooting preview interface；
When receiving video recovery shooting instruction, judge the frame target image and the present image matching degree whether
More than preset matching degree threshold value；
If so, the video segment of current shooting and the video segment that shot are carried out video-splicing, video data is obtained.
2. according to the method described in claim 1, it is characterized in that, when a last at least two field picture includes last multiframe figure
During picture, the frame target image by a last at least two field picture is included with default transparency in the mobile terminal
Shooting preview interface, including：
The Characteristic Contrast degree that gets colors from last multiple image is more than a frame target image of default contrast threshold；
The one frame target image is included into the shooting preview interface in the mobile terminal to preset transparency.
3. according to the method described in claim 1, it is characterized in that, when a last at least two field picture includes last multiframe figure
During picture, the frame target image by a last at least two field picture is included with default transparency in the mobile terminal
Shooting preview interface, further include：
The last multiple image is included to the shooting preview interface in the mobile terminal in turn；
According to selection operation of the user to the frame target image shown in the shooting preview interface, by the frame target figure
Shooting preview interface as being shown in the mobile terminal with default transparency.
4. according to the method described in claim 1, it is characterized in that, when a last at least two field picture includes last multiframe figure
During picture, the frame target image by a last at least two field picture is included with default transparency in the mobile terminal
Shooting preview interface after, the method further includes：
The two field picture shot in video segment after the frame target image is deleted.
5. the according to the method described in claim 1, it is characterized in that, frame mesh by a last at least two field picture
After logo image is shown in the shooting preview interface of the mobile terminal with default transparency, the method further includes：
Extract the contour feature of target prospect image in the frame target image；
The profile of the target prospect image is determined according to the contour feature；
The profile of target prospect image described in the one frame target image is included in the shooting preview interface；
It is described when receiving video recovery shooting instruction, judge the matching degree of the frame target image and the present image
Whether preset matching degree threshold value is more than, including：
When receiving video recovery shooting instruction, the contour feature of current foreground image in the present image is extracted；
Judge whether the matching degree of the contour feature and the contour feature of the current foreground image of the target prospect image is big
In default characteristic matching degree threshold value.
6. according to the method described in claim 1, it is characterized in that, the video segment by current shooting has been shot with described
Video segment carries out video-splicing, obtains video data, including：
By the present image in the video segment of current shooting and the frame target shot in video segment
Image carries out video-splicing, obtains video data.
7. a kind of video capture device, applied to mobile terminal, which is characterized in that described device includes：
Acquisition module, for when receiving video pause shooting instruction, acquisition to have shot a last at least frame in video segment
Image；
First display module, for the frame target image in a last at least two field picture to be included with default transparency
The shooting preview interface of the mobile terminal；
Second display module, the present image for the camera of the mobile terminal to be gathered are included in shooting preview circle
Face；
Judgment module, for when receiving video recovery shooting instruction, judging the frame target image and the current figure
Whether the matching degree of picture is more than preset matching degree threshold value；
Concatenation module, if the matching degree for determining the frame target image and the present image for the judgment module is more than
The video segment of current shooting and the video segment that shot then are carried out video-splicing by preset matching degree threshold value, depending on
Frequency evidence.
8. device according to claim 7, which is characterized in that first display module includes：
Submodule is chosen, for when a last at least two field picture includes last multiple image, from last multiple image
The Characteristic Contrast degree that gets colors is more than a frame target image of default contrast threshold；
First display sub-module, for the one frame target image to be included the shooting in the mobile terminal to preset transparency
Preview interface.
9. device according to claim 7, which is characterized in that first display module further includes：
Second display sub-module, will be described finally more for when a last at least two field picture includes last multiple image
Two field picture is shown in the shooting preview interface of the mobile terminal in turn；
3rd display sub-module, for being grasped according to the selection of a frame target image of the user to being shown in the shooting preview interface
Make, the frame target image is included into the shooting preview interface in the mobile terminal to preset transparency.
10. device according to claim 7, which is characterized in that described device further includes：
Removing module, for when a last at least two field picture includes last multiple image, piece of video have been shot by described
The two field picture deletion being located in section after the frame target image.
11. device according to claim 7, which is characterized in that described device further includes：
Extraction module, for extracting the contour feature of target prospect image in the frame target image；
Determining module, for determining the profile of the target prospect image according to the contour feature；
3rd display module, for including the profile of target prospect image described in the frame target image in the shooting
Preview interface；
The judgment module includes：
Extracting sub-module, for when receiving video recovery shooting instruction, extracting current foreground image in the present image
Contour feature；
Judging submodule, for judging the contour feature of the contour feature of the target prospect image and the current foreground image
Matching degree whether be more than default characteristic matching degree threshold value.
12. device according to claim 7, which is characterized in that the concatenation module includes：
Splice submodule, shot for the present image in the video segment by current shooting with described in video segment
The frame target image carry out video-splicing, obtain video data.
13. a kind of mobile terminal, which is characterized in that including：It memory, processor and is stored on the memory and can be in institute
The computer program run on processor is stated, such as claim 1 to 6 is realized when the computer program is performed by the processor
Any one of video capture method the step of.
14. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes such as video capture method according to any one of claims 1 to 6 when the computer program is executed by processor
In step.
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