CN106210584A - A kind of video recording method and device - Google Patents
A kind of video recording method and device Download PDFInfo
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- CN106210584A CN106210584A CN201610624659.3A CN201610624659A CN106210584A CN 106210584 A CN106210584 A CN 106210584A CN 201610624659 A CN201610624659 A CN 201610624659A CN 106210584 A CN106210584 A CN 106210584A
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- photographic head
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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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
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
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- Television Signal Processing For Recording (AREA)
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Abstract
The embodiment of the invention discloses a kind of video recording method and device, relate to technical field of image processing.The method includes: sequence trigger switch opens at least two photographic head, controls each photographic head and is continuously shot to set time of exposure；The shooting photo that alternately acquisition at least two photographic head exports respectively carries out Video coding, generates video file.The embodiment of the present invention, can be by the photo synthetic video file captured by multiple photographic head by using technique scheme.Realize under conditions of same video frame per second, effectively the technique effect of the quantity of photo captured by each photographic head in the reduction setting time, and then so that the time of exposure that each photographic head is taken a picture has more selection.
Description
Technical field
The present embodiments relate to technical field of image processing, particularly relate to a kind of video recording method and device.
Background technology
Along with the development of the Internet, computer and communication technology, the function of the intelligent terminal such as such as smart mobile phone is the most more come
The most powerful, the degree of dependence of intelligent terminal is also being continuously increased by user, such as shooting photo and recorded video etc..
When utilizing the photographic head recorded video of intelligent terminal, can be units of measurement with video frame rate (frame rate)
Represent the fps (frames per second, shown frame number per second) of terminal screen.Special life due to human eye
Reason structure, when video frame rate is less than 16fps, the video pictures recorded can seem discontinuous.But frame per second if it exceeds
During 75fps, human eye is just not easy to perceive video pictures the lifting of obvious fluency.Generally, photographic head uses
Frame per second be 30fps, now, human eye is it can be seen that smooth video pictures true to nature.
In the prior art, video file mainly shoots multiple pictures by single photographic head in setting the time period
After, this multiple pictures is generated after certain Video coding.Accordingly, after the minimum frame per second of a video file determines,
The longest time of exposure of photographic head is the most just determined.Particularly, if, with the traditional single camera of intelligent terminal at light
Recorded video in the case of the most dim, even if time of exposure is adjusted to maximum, traditional single camera is at subdued light conditions
Under video recording quality the most poor.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of video recording method and device, to adjust in same video frame per second
Under the quantity taken a picture of single photographic head and time of exposure.
First aspect, embodiments provides a kind of video recording method, comprising:
Sequence trigger switch opens at least two photographic head, controls each photographic head and is continuously shot to set time of exposure；
The shooting photo that alternately acquisition at least two photographic head exports respectively carries out Video coding, generates video file.
Second aspect, embodiments provides a kind of video recording device, including:
Trigger module, opens at least two photographic head for sequence trigger switch, controls each photographic head to set time of exposure
It is continuously shot；
Video encoding module, the shooting photo exported respectively for alternately obtaining at least two photographic head carries out video volume
Code, generates video file.
The technical scheme that the embodiment of the present invention provides, opens at least two photographic head by sequence trigger switch, controls each taking the photograph
As head is continuously shot to set time of exposure, the photo that then alternately acquisition at least two photographic head exports respectively regards
Frequency coding, generates video file.By using technique scheme, can be by the photo synthetic video captured by multiple photographic head
File.Realize under conditions of same video frame per second, effectively the quantity of photo captured by each photographic head in the reduction setting time
Technique effect, and then so that time of exposure that each photographic head is taken a picture has more selection.
Accompanying drawing explanation
Fig. 1 is a kind of video recording method schematic flow sheet that the embodiment of the present invention one provides；
Fig. 2 is a kind of video recording method schematic flow sheet that the embodiment of the present invention two provides；
Fig. 3 is a kind of video recording method schematic flow sheet that the embodiment of the present invention three provides；
Fig. 4 is a kind of video recording method schematic flow sheet that the embodiment of the present invention four provides；
Fig. 5 is the mode schematic diagram of a kind of camera collection Frame of the embodiment of the present invention.
Fig. 6 is a kind of video recording device structured flowchart that the embodiment of the present invention five provides；
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention is illustrate only rather than entire infrastructure in description, accompanying drawing.
It should be mentioned that, some exemplary embodiments are described as before being discussed in greater detail exemplary embodiment
The process described as flow chart or method.Although flow chart each step is described as order process, but many of which
Step can be implemented concurrently, concomitantly or simultaneously.Additionally, the order of each step can be rearranged.When it operates
When completing, described process can be terminated, it is also possible to have the additional step being not included in accompanying drawing.Described process is permissible
Corresponding to method, function, code, subroutine, subprogram etc..
For description various embodiments of the present invention clear, that understand, first the principle that realizes of the present invention is simply introduced.
The embodiment of the present invention utilizes at least two photographic head recorded video respectively, it is necessary first to sequence trigger switch opens at least two
Individual photographic head, controls each photographic head and is continuously shot to set time of exposure.Then over-over mode is used to carry out video record
System and coding, the shooting photo that i.e. alternately acquisition at least two photographic head exports respectively carries out Video coding, generates video file.
Such as, if using two or more photographic head to carry out video record, then the photograph that each photographic head shot in 1 second can be made
The quantity of sheet is respectively less than 30, and then the time of exposure that each photographic head is taken a picture has more selection.
In video carries out cataloged procedure, the data of encoder respectively two or more photographic head of interleaved acquisition, i.e. the
One two field picture uses the picture that first photographic head is recorded, the second two field picture to use the picture that second photographic head is recorded,
3rd two field picture is continuing with the picture that first photographic head is recorded, and the 4th two field picture is continuing with second photographic head and is recorded
The picture of system, the rest may be inferred.By using technique scheme, photo captured by each photographic head in the setting time can be reduced
Quantity, and then so that time of exposure that each photographic head is taken a picture has more selection.
Embodiment one
A kind of video recording method schematic flow sheet that Fig. 1 provides for the embodiment of the present invention one, the method can be by one
Video recording device performs, and wherein this device can be realized by software and/or hardware, typically can be integrated in and include that at least two images
In the video recording device of head.Typically, described video recording device may include that DV, smart mobile phone or puts down
Plate computer etc..As it is shown in figure 1, the method includes:
Step 110, sequence trigger switch open at least two photographic head, control each photographic head and carry out even to set time of exposure
Continuous shooting.
Exemplary, at least two photographic head in the present embodiment can be colour imagery shot, it is also possible to is black and white
Photographic head, typically, in order to realize the recording of color video, described at least two photographic head can be colour imagery shot.
In the present embodiment, in order to realize photo one video file of synthesis of different photographic head shootings, need to ensure
Photo for synthetic video is the photo of different time points shooting, namely the photo of each photographic head shooting is incomplete same.
Accordingly, in the present embodiment, open at least two photographic head by sequence trigger switch, and control each photographic head to set exposure
The mode that time carries out being continuously shot realizes being controlled the shooting time point of each photographic head shooting photo.
Exemplary, sequence trigger switch is opened at least two photographic head and be may include that every setting time difference unlatching one
Photographic head, until completing the unlatching to whole photographic head.Concrete, setting time difference can preset according to practical situation,
Typically, the quantity of the photographic head that can be used in combination and the time of each photographic head one photo of shooting, the most often
The time of exposure of individual photographic head is preset, and this is not limited by the present embodiment.
In a specific example, if the quantity of photographic head used is two, and during the exposure of each photographic head
Between be 1/15 second, then time difference can be set to (1/15 second)/2=1/30 second；If the quantity of the photographic head used is
Three, and the time of exposure of each photographic head is 1/10, then time difference can be set to (1/10 second)/3=1/30 second.I.e.
After starting first photographic head, it is spaced 1/30 second and starts second photographic head, then be spaced the 3rd photographic head of startup in 1/30 second.
The photo that the setting of time difference can be used for controlling the shooting of each photographic head is incomplete same.That is, using multiple taking the photograph
During as head synthetic video file, it is ensured that each shooting photo that each photographic head obtains is the photo of different time points photographs, enters
And can ensure that the synthetic effect of video.
Concrete, when opening at least two photographic head, user can be integrated in taking the photograph of video recording device by pressing
As the record button of head triggers, it is also possible to by pressing the other-end that be connected wired or wireless with this video recording device
The control knob of (such as self-shooting bar) triggers.When in video recording device, correlation control unit refers in the triggering receiving user
After order, order opens photographic head.After photographic head is triggered unlatching, user needs to find accurately camera site and distance, concretely
Just shooting object is shot.
Exemplary, time of exposure refers to that photographic head is opened to the time interval closed from shutter, within this period of time,
Object can leave image on egative film.Exemplary, in the present embodiment, the setting time of exposure that each photographic head is corresponding can
With equal, it is also possible to.Such as, generally, video frame rate is 30fps, carries out video record when using single camera
Time, the time of exposure of every two field picture is 1/30 second.If using two photographic head to carry out video record, the most each photographic head is recorded
The time of exposure of every two field picture can be set to 1/15 second.Or a photographic head is recorded the time of exposure setting of every two field picture
Being 1/14 second, another is set as 1/16 second.
Exemplary, each sum reciprocal setting time of exposure can be more than or equal to the video frame rate value of video file,
And the inverse respectively setting time of exposure is respectively less than the video frame rate value of described video file, the reason so arranged is: breach
The existing single camera video recording restriction to the longest time of exposure of photographic head, user can close according to actual brightness demand
The prolonging exposure time of reason.That is: for single camera, in order to recorded video frame per second is the video file of 30fps, this is singly taken the photograph
30 photos must be at least shot, it may be assumed that time of exposure is the longest 1/30 second as per second.If using two photographic head to carry out video
Record, as long as ensureing that the number of pictures sum of two photographic head shootings per second, more than or equal to 30, can synthesize this video frame rate
For the video file of 30fps, if the time of exposure of a photographic head is set as 1/14 second, then this photographic head is per second can shoot 14
Opening photo, the time of exposure of another photographic head is set as 1/16 second, then this photographic head is per second can shoot 16 photos, if energy
Enough ensure that the shooting time point of each photo of above-mentioned two photographic head is misaligned, then by by shooting per second for above-mentioned two photographic head
Photo merge, the video file meeting video frame rate can be synthesized.
Concrete, after setting time of exposure, image to be gathered can be shot by user.If image is fortune
Moving, user only need to fix the position of photographic head, along with the motion of image shoots.If shot image is static,
Then user is after having clapped a scene, needs dollying head and selects corresponding angle to carry out the shooting of next scene.
Step 120, the shooting photo that alternately acquisition at least two photographic head exports respectively carry out Video coding, generate video
File.
Exemplary, after sequence trigger switch opens two photographic head, each photographic head can be respectively separated a fixing exposure
The light time, such as 1/15 second, carry out the shooting of next frame image.Owing to two photographic head have time interval on startup, then by
Also time interval can be there is in the photo of the two photographic head output.As it is shown in figure 5, be utilized respectively left photographic head and right photographic head enters
The shooting of row image, the startup from figure 5 it can be seen that left photographic head is first triggered, 1/30 second upon actuation, right photographic head was touched
Send out and start.Time of exposure set by the photographic head of left and right is all 1/15 second.The most left photographic head completes the shooting of the 1st two field picture
After (1/15 second time used), then carry out the shooting of next frame (the 3rd frame) image, the like.Right photographic head completes the 2nd
After the shooting (1/15 second time used) of two field picture, then carry out the shooting of next frame (the 4th frame) image.Left and right photographic head is being clapped
After having taken the photograph image, the shooting photo obtaining photographic head output according to the sequence alternate of the 1st frame, the 2nd frame, the 3rd frame carries out video volume
Code, i.e. by specific compress technique, is converted into photo one by one the video image of smoothness.
The video recording method that the embodiment of the present invention one provides, opens at least two photographic head by sequence trigger switch, controls
Each photographic head is continuously shot to set time of exposure, then alternately obtains the photo that at least two photographic head exports respectively
Carry out Video coding, generate video file.By using technique scheme, the photo captured by multiple photographic head can be closed
Become video file.Realize under conditions of same video frame per second, effectively photo captured by each photographic head in the reduction setting time
The technique effect of quantity, and then so that the time of exposure that each photographic head is taken a picture has more selection.Especially
, if arranging the sum reciprocal video frame rate value more than or equal to video file of each setting time of exposure, and respectively set exposure
The inverse of light time is respectively less than described video frame rate value, then can extend the time of exposure of each photographic head, and then can be implemented in
During half-light video recording, the video of recording is made to have obvious luminance raising.
Embodiment two
A kind of video recording method schematic flow sheet that Fig. 2 provides for the embodiment of the present invention two, the present embodiment is with above-mentioned reality
Embody based on executing example, in the present embodiment, step " is alternately obtained the shooting that at least two photographic head exports respectively
Photo carries out Video coding, generates video file " be specially that " according to the output order of shooting photo, use encoder is alternately adopted
Collect the shooting photo of each described photographic head output；According to setting coding rule, each shooting photo gathered is carried out Video coding,
Generate video file ".Accordingly, the method for the present embodiment comprises the steps:
Step 210, sequence trigger switch open at least two photographic head, control each photographic head and carry out even to set time of exposure
Continuous shooting.
In the present embodiment, in order to reduce the complexity of operation, the time of exposure of each photographic head can be disposed as
Identical, the most each sum reciprocal video frame rate value more than or equal to video file setting time of exposure, and respectively set exposure
The inverse of time is respectively less than described video frame rate value.
Step 220, according to shooting photo output order, use encoder interleaved acquisition each described photographic head output bat
Take the photograph photo.
Exemplary, carry out video record according to two photographic head, the most in an encoding process, the first two field picture uses the
Photo captured by one photographic head, the second two field picture uses the photo captured by second photographic head, the 3rd two field picture to continue
Using the photo captured by first photographic head, the 4th two field picture is continuing with the photo captured by second photographic head, according to this
Analogize.As it is shown in figure 5, the image captured by left photographic head is the 1st frame, the 3rd frame, the 5th frame respectively ....Right photographic head is clapped
The image taken the photograph is the 2nd frame, the 4th frame, the 6th frame respectively ....Exemplary, that encoder is exported in acquisition camera photo
Time, respectively by the 1st frame, the 2nd frame, the 3rd frame ..., sequence alternate gather the photo captured by the photographic head of left and right, until gathering
Till complete all photos.The time of exposure that can be made every two field picture by such scheme was expanded to 1/15 by traditional 1/30 second
Second.
Step 230, according to setting coding rule, each shooting photo gathered is carried out Video coding, generates video file.
Exemplary, dynamic video is actually made up of image static one by one.When continuous print image becomes
Changing per second more than time more than 24 frame pictures, according to persistence of vision principle, human eye cannot pick out the tableaux of single width, whole picture
Face appears to present smooth continuous print visual effect.Common Video coding mode has: Microsoft RLE or Intel
IYUV Codec etc..Wherein, Microsoft RLE is the coded system of a kind of 8, can only support 256 colors, it is possible to use it
Encode the material of large area color lump.Fabulous by Intel IYUV Codec mode gained picture quality, but by this
The file that mode generates can take bigger memory space.Concrete, when carrying out video capture, photographic head can be based on clapped thing
The type of body automatically selects coded system, or the performance of photographic head can be set before shooting by user according to self-demand
Put, select to be suitable for the coded system of oneself.
The embodiment of the present invention two, on the basis of embodiment one, by utilizing at least two photographic head to shoot, will be taken the photograph
As the time of exposure prolongation of every two field picture that head is recorded, and obtain photographic head according to the output sequence alternate of captured photo
After captured photo, synthesize the video file meeting video frame rate.By using technique scheme, it is possible to achieve secretly
During light video recording, the video of recording has obvious luminance raising.
Embodiment three
A kind of video recording method schematic flow sheet that Fig. 3 provides for the embodiment of the present invention three, the present embodiment is with above-mentioned reality
Embody based on executing example, in the present embodiment, " according to setting coding rule, each shooting photo gathered is being carried out
Video coding, generates video file " before add step and " according to the site error parameter between each described photographic head, determine
Each public shooting area shooting photo；According to described public shooting area, each described shooting photo is carried out cutting ".
Accordingly, the method for the present embodiment comprises the steps:
Step 310, sequence trigger switch open at least two photographic head, control each photographic head and carry out even to set time of exposure
Continuous shooting.
Step 320, according to shooting photo output order, use encoder interleaved acquisition each described photographic head output bat
Take the photograph photo.
Step 330, according to the site error parameter between each described photographic head, determine the public shooting district of each shooting photo
Territory.
Exemplary, owing to the present invention uses at least two photographic head to carry out image taking, due to the two photographic head it
Between can there is certain site error, then also can there is certain site error by the photo that the two photographic head shoots.As
The image of shooting is not processed by fruit, even if at synchronization, the same two field picture of two photographic head shootings also can exist
Fine distinction, this will make different images when synthesis, there is certain resultant error.It is thus desirable to each photographic head
The photo of shooting carries out cutting.Cutting method can be based on each photographic head between site error parameter.
Wherein, described site error parameter can be after photographing device completes to dispatch from the factory and looks after and guides, in write photographing device, it is possible to
Comparing with the picture by shooting at least two photographic head simultaneously and obtain, this is not limited by the present embodiment.
Step 340, according to public shooting area, each shooting photo is carried out cutting.
Exemplary, after determining the public territory of photo captured by each photographic head, each photo can be cropped
Not common region, retain photo public territory.Exemplary, to the cutting of shooting photo can be after photo exports and
Before Video coding, by correlation techniques such as picture cropping tools, image is carried out cutting；Can also according to site error parameter in advance
Being set photographic head, during shooting photo, the photo of output only shows the public territory captured by photographic head.From
And the photo captured by different photographic head has been carried out unified calibration.
Step 350, according to setting coding rule, each shooting photo gathered is carried out Video coding, generates video file.
The embodiment of the present invention three, on the basis of embodiment two, is caused by the site error of different photographic head by cropping
The not common region of captured photo, can on the basis of promoting luminance video at least two photographic head to diverse location
The image of shooting has carried out image registration.
Embodiment four
A kind of video recording method schematic flow sheet that Fig. 4 provides for the embodiment of the present invention four, the present embodiment is with above-mentioned reality
It is optimized based on executing example, in the present embodiment, the process before " opening at least two photographic head at sequence trigger switch " is entered
Go optimization.With reference to Fig. 4, the present embodiment comprises the steps:
Step 410, when the request of video record that user inputs being detected, obtain environmental light brightness around.
Exemplary, the brightness of environment is to determine one crucial factor of video record effect.If in ambient light
Under conditions of brightness is higher, the picture effect of recorded video can be more clear, and brightness also can be higher.Now, a shooting is used
When head is recorded, in the case of ensureing that frame per second is 30fps, the brightness of video image is also unaffected.But if
Under conditions of environmental light brightness is the highest, if ensureing that frame per second is 30fps, then the time of exposure of every two field picture is 1/30 second.By
Inadequate, when photographic head shutter is in being opened to close during this period of time, and object cannot stay on photographic head egative film in environmental light brightness
Under gem-pure image.This influences whether shot the video quality.Therefore, when detecting that user has video record to ask,
First have to obtain environmental light brightness around.
If the described environmental light brightness of step 420 is less than predetermined luminance condition, then sequence trigger switch opens at least two shooting
Head.
Exemplary, if environmental light brightness is less than presetting environmental light brightness, then in order to promote luminance video, need order
Trigger and open at least two photographic head, to extend the time of exposure of every two field picture.Concrete, if environmental light brightness is higher than presetting
During brightness conditions, user triggers a photographic head and carries out shooting, and concrete triggering mode refers to embodiment one, the most no longer
Repeat.
Step 430, sequence trigger switch open at least two photographic head, control each photographic head and carry out even to set time of exposure
Continuous shooting.
Step 440, according to shooting photo output order, use encoder interleaved acquisition each described photographic head output bat
Take the photograph photo.
Step 450, according to the site error parameter between each described photographic head, determine the public shooting district of each shooting photo
Territory.
Step 460, according to public shooting area, each shooting photo is carried out cutting.
Step 470, according to setting coding rule, each shooting photo gathered is carried out Video coding, generates video file.
The present embodiment four is optimized on the basis of embodiment three, opens touching of at least two photographic head by refinement
Clockwork spring part, can select corresponding condition to trigger photographic head accordingly.If environmental light brightness is higher, trigger unlatching one
Individual photographic head carries out shooting.If environmental light brightness is relatively low, then needs to trigger to open at least two photographic head, use at least two
Photographic head carries out image acquisition, increases the time of exposure of every two field picture, and then improves the luminance video under subdued light conditions.
Embodiment five
The structured flowchart of a kind of video recording device that Fig. 6 provides for the embodiment of the present invention five, this device can by software and/
Or hardware realizes, it is typically integrated in intelligent terminal, video record can be carried out by performing video recording method.As shown in Figure 6,
This device includes: trigger module 510, video encoding module 520.
Wherein, trigger module 510, open at least two photographic head for sequence trigger switch, control each photographic head to set
Time of exposure is continuously shot；
Video encoding module 520, the shooting photo exported respectively for alternately obtaining at least two photographic head carries out video
Coding, generates video file.
The video recording device that the embodiment of the present invention five provides, opens at least two photographic head by sequence trigger switch, controls
Each photographic head is continuously shot to set time of exposure, can be by the photo synthetic video literary composition captured by multiple photographic head
Part.Realize under conditions of same video frame per second, effectively the quantity of photo captured by each photographic head in the reduction setting time
Technique effect, and then so that the time of exposure that each photographic head is taken a picture has more selection
On the basis of the various embodiments described above, setting time of exposure corresponding to each described photographic head can be equal or not
Deng.
On the basis of the various embodiments described above, each sum reciprocal setting time of exposure can be more than or equal to described video
The video frame rate value of file, and each inverse setting time of exposure can be less than the video frame rate value of described video file.
On the basis of the various embodiments described above, described trigger module may include that time difference setup unit, for every
Setting time difference and open a photographic head, until completing the unlatching to whole photographic head, wherein, described setting time difference is used for
The photo controlling the shooting of each photographic head is incomplete same.
On the basis of the various embodiments described above, described at least two photographic head can be colour imagery shot.
On the basis of the various embodiments described above, the quantity of described photographic head can be two, the respectively first photographic head and
Second camera.
On the basis of the various embodiments described above, described setting time of exposure can be 1/15 second, and described video frame rate is permissible
For 30fps, described setting time difference can be 1/30 second.
On the basis of the various embodiments described above, described video encoding module may include that
Photo acquisition unit, for the output order according to shooting photo, uses each described shooting of encoder interleaved acquisition
The shooting photo of head output；
Video file signal generating unit, for according to setting coding rule, carries out Video coding to each shooting photo gathered,
Generate video file.
On the basis of the various embodiments described above, this device can also include: public shooting area determines module, at root
According to setting coding rule, each shooting photo gathered is carried out Video coding, before generating video file, according to each described shooting
Site error parameter between Tou, determines the public shooting area of each shooting photo；
Cutting module, for carrying out cutting according to described public shooting area to each described shooting photo.
On the basis of the various embodiments described above, this device can also include: luminance acquisition module: for opening at sequence trigger switch
Before opening at least two photographic head, when the video record request that user inputs being detected, obtain environmental light brightness around；
Photographic head opening module, if for described environmental light brightness less than predetermined luminance condition, then sequence trigger switch is opened
At least two photographic head.
The video recording device provided in above-described embodiment can perform the video record that any embodiment of the present invention is provided
Method, possesses the execution corresponding functional module of the method and beneficial effect.The technology of the most detailed description is thin
Joint, can be found in the video recording method that any embodiment of the present invention is provided.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious change,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although by above example, the present invention is carried out
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (20)
1. a video recording method, it is characterised in that including:
Sequence trigger switch opens at least two photographic head, controls each photographic head and is continuously shot to set time of exposure；
The shooting photo that alternately acquisition at least two photographic head exports respectively carries out Video coding, generates video file.
Method the most according to claim 1, it is characterised in that:
The setting time of exposure that each described photographic head is corresponding equal or.
Method the most according to claim 2, it is characterised in that:
The each sum reciprocal video frame rate value more than or equal to described video file setting time of exposure, and during each setting exposure
Between inverse less than the video frame rate value of described video file.
Method the most according to claim 1, it is characterised in that sequence trigger switch is opened at least two photographic head and included:
A photographic head is opened, until completing the unlatching to whole photographic head, wherein, during described setting every setting time difference
Between difference for control each photographic head shooting photo incomplete same.
5. according to the method described in any one of claim 1-4, it is characterised in that described at least two photographic head is colored shooting
Head.
Method the most according to claim 5, it is characterised in that:
The quantity of described photographic head is two, the respectively first photographic head and second camera.
Method the most according to claim 6, it is characterised in that
The described time of exposure that sets was as 1/15 second, and described video frame rate is 30fps, and the described time difference that sets was as 1/30 second.
Method the most according to claim 1, it is characterised in that alternately obtain the shooting that at least two photographic head exports respectively
Photo carries out Video coding, generates video file and includes:
Output order according to shooting photo, uses the shooting photo of encoder interleaved acquisition each described photographic head output；
According to setting coding rule, each shooting photo gathered is carried out Video coding, generates video file.
Method the most according to claim 8, it is characterised in that according to setting coding rule, respectively shoot photograph to gather
Sheet carries out Video coding, before generating video file, also includes:
According to the site error parameter between each described photographic head, determine the public shooting area of each shooting photo；
According to described public shooting area, each described shooting photo is carried out cutting.
Method the most according to claim 1, it is characterised in that before sequence trigger switch opens at least two photographic head, also
Including:
When the video record request that user inputs being detected, obtain environmental light brightness around；
If described environmental light brightness is less than predetermined luminance condition, then sequence trigger switch opens at least two photographic head.
11. 1 kinds of video recording device, it is characterised in that including:
Trigger module, opens at least two photographic head for sequence trigger switch, controls each photographic head and carries out to set time of exposure
It is continuously shot；
Video encoding module, the shooting photo exported respectively for alternately obtaining at least two photographic head carries out Video coding, raw
Become video file.
12. devices according to claim 11, it is characterised in that:
The setting time of exposure that each described photographic head is corresponding equal or.
13. devices according to claim 12, it is characterised in that:
The each sum reciprocal video frame rate value more than or equal to described video file setting time of exposure, and during each setting exposure
Between inverse less than the video frame rate value of described video file.
14. devices according to claim 11, it is characterised in that described trigger module includes:
Time difference setup unit, for every setting time difference one photographic head of unlatching, until completing whole photographic head
Unlatching, wherein, described setting time difference for control each photographic head shooting photo incomplete same.
15. according to the device described in any one of claim 11-14, it is characterised in that described at least two photographic head is colored
Photographic head.
16. devices according to claim 15, it is characterised in that:
The quantity of described photographic head is two, the respectively first photographic head and second camera.
17. devices according to claim 16, it is characterised in that:
The described time of exposure that sets was as 1/15 second, and described video frame rate is 30fps, and the described time difference that sets was as 1/30 second.
18. devices according to claim 11, it is characterised in that described video encoding module includes:
Photo acquisition unit, for the output order according to shooting photo, uses each described photographic head of encoder interleaved acquisition defeated
The shooting photo gone out；
Video file signal generating unit, for according to setting coding rule, carries out Video coding to each shooting photo gathered, generates
Video file.
19. devices according to claim 18, it is characterised in that also include:
Public shooting area determines module, for according to setting coding rule, each shooting photo gathered being carried out video volume
Code, before generating video file, according to the site error parameter between each described photographic head, determines the public bat of each shooting photo
Take the photograph region；
Cutting module, for carrying out cutting according to described public shooting area to each described shooting photo.
20. devices according to claim 11, it is characterised in that also include:
Luminance acquisition module, before opening at least two photographic head at sequence trigger switch, at the video detecting that user inputs
During recording request, obtain environmental light brightness around；
Photographic head opening module, if for described environmental light brightness less than predetermined luminance condition, then sequence trigger switch is opened at least
Two photographic head.
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