CN107707840A - A kind of method of camera module and multilevel image data transmission - Google Patents
A kind of method of camera module and multilevel image data transmission Download PDFInfo
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- CN107707840A CN107707840A CN201711027581.8A CN201711027581A CN107707840A CN 107707840 A CN107707840 A CN 107707840A CN 201711027581 A CN201711027581 A CN 201711027581A CN 107707840 A CN107707840 A CN 107707840A
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
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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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- Engineering & Computer Science (AREA)
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- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a kind of camera module, including signal multiplexing processor, back-end processor and multiple cameras；Multiple cameras are all connected with the signal multiplexing processor, and the signal multiplexing processor connects the back-end processor；The signal multiplexing processor is used to obtain the view data that multiple cameras are sent, and multiple described image data is combined into multiplex data, and the multiplex data is sent to the back-end processor；Multiplex processor, which can merge multiple images data group according to mode set in advance, in the camera module be compressed into multiplex data, and so as to greatly reduce the data volume of back-end processor reception, pressure of the processor in composograph is reduced with this；The invention also discloses a kind of method of multilevel image data transmission, equally with above-mentioned beneficial effect.
Description
Technical field
The present invention relates to camera technology field, more particularly to a kind of camera module and the method for multilevel image data transmission.
Background technology
As science and technology is constantly progressive in recent years, the function of camera module is become stronger day by day, while the structure of camera module
It is increasingly complicated.
At this stage, the application of the camera module with multiple cameras is more and more extensive, corresponding multi-cam
The utilization of synthetic technology is also more and more extensive.Multi-cam synthetic technology is at the image for shooting multiple cameras passes through
After the synthesis processing for managing device, the image that synthesizes to obtain can realize HDR (high dynamic range images), big visual angle, background blurring
Deng and other effects.
In the prior art, the view data that the multiple cameras of reception of back-end processor typically directly are sent, and to more
Individual view data is handled.But in the prior art, back-end processor directly handles multiple images data and can cause to handle
The pressure of device would generally be very big, the problems such as so as to cause image real time transfer overlong time.
The content of the invention
It is an object of the invention to provide a kind of camera module, can effectively reduce pressure of the back-end processor in composograph
Power；Another object of the present invention is to provide a kind of method of multilevel image data transmission, it can effectively reduce back-end processor and exist
Pressure during composograph.
In order to solve the above technical problems, the present invention provides a kind of camera module, the camera module is included at signal multiplexing
Manage device, back-end processor and multiple cameras；
Multiple cameras are all connected with the signal multiplexing processor, and the signal multiplexing processor connects the rear end
Processor；
The signal multiplexing processor is used to obtain the view data that multiple cameras are sent, by multiple described images
Data are combined into multiplex data, and the multiplex data is sent to the back-end processor.
Optionally, multiple cameras include main camera and from cameras, and the main camera connection is described from taking the photograph
As head；
The main camera is used to send synchronizing signal from camera to described, described synchronously to be believed according to described from camera
Number it is exposed, to obtain the view data for including current viewfinder image.
Optionally, described image data include identification information corresponding with the viewfinder image；
The signal multiplexing processor is described multiple for being combined into multiple described image data according to the identification information
Use data.
Optionally, the identification information includes the equipment identification information for obtaining the camera of the viewfinder image and/or right
The time marking information of the viewfinder image should be obtained.
Present invention also offers a kind of method of multilevel image data transmission, methods described includes：
Signal multiplexing processor obtains the view data that multiple cameras are sent；
Multiple described image data are combined into multiplex data by the signal multiplexing processor；
The signal multiplexing processor sends the multiplex data to back-end processor.
Optionally, described image data are specially being sent from camera according to main camera in multiple cameras
Synchronizing signal is exposed, to obtain the view data for including current viewfinder image.
Optionally, described image data include identification information corresponding with the viewfinder image；
Multiple described image data are combined into multiplex data by the signal multiplexing processor to be included：
Multiple described image data are combined into the multiplexing number by the signal multiplexing processor according to the identification information
According to.
Optionally, the identification information includes the equipment identification information for obtaining the camera of the viewfinder image and/or right
The time marking information of the viewfinder image should be obtained.
A kind of camera module provided by the present invention, multiplex processor is added, the multiplex processor connection is multiple to take the photograph
As head and back-end processor；The signal multiplexing processor is used to obtain the view data that multiple cameras are sent, will
Multiple described image data are combined into multiplex data, and the multiplex data is sent to the back-end processor；The multiplexing
Processor, which can merge multiple images data group according to mode set in advance, is compressed into multiplex data, so as to greatly reduce
The data volume that back-end processor receives, pressure of the processor in composograph is reduced with this.
Present invention also offers a kind of method of multilevel image data transmission, equally with above-mentioned beneficial effect, herein no longer
Repeated.
Brief description of the drawings
, below will be to embodiment or existing for the clearer explanation embodiment of the present invention or the technical scheme of prior art
The required accompanying drawing used is briefly described in technology description, it should be apparent that, drawings in the following description are only this hair
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
A kind of structured flowchart for camera module that Fig. 1 is provided by the embodiment of the present invention；
The structured flowchart for another camera module that Fig. 2 is provided by the embodiment of the present invention；
Fig. 3 is a kind of flow chart of multilevel image data transmission method provided in an embodiment of the present invention.
Embodiment
The core of the present invention is to provide a kind of camera module.In the prior art, the reception of back-end processor typically directly
The view data that multiple cameras are sent, and multiple images data are handled., it is necessary to will be more in specific processing procedure
Individual view data is ranked up, and by image data analyzing into original image, is finally being carried out reduction noise, improved image quality quality,
Depth of field editor etc. is handled, and finally synthesizes the image of default effect.But if back-end processor directly receives multiple images data
Data volume it is very huge, this will make it that pressure of the back-end processor when handling view data is very big, so as to make
The problems such as into image real time transfer overlong time.
And a kind of camera module provided by the present invention, multiplex processor is added, the multiplex processor connection is multiple
Camera and back-end processor；The signal multiplexing processor is used to obtain the view data that multiple cameras are sent,
Multiple described image data are combined into multiplex data, and the multiplex data is sent to the back-end processor；It is described multiple
Multiple images data group can be merged according to mode set in advance with processor and be compressed into multiplex data, so as to greatly reduce
Data volume that back-end processor receives, pressure of the processor in composograph is reduced with this.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiment is only part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
It refer to Fig. 1 and Fig. 2, a kind of structured flowchart for camera module that Fig. 1 is provided by the embodiment of the present invention；Fig. 2 is
The structured flowchart for another camera module that the embodiment of the present invention is provided.
Referring to Fig. 1, in embodiments of the present invention, the camera module includes signal multiplexing processor 200, back-end processor
300 and multiple cameras 100.
Above-mentioned camera 100 is used to obtain the current viewfinder image of the camera 100.Obtain and found a view in camera 100
After image, viewfinder image can be converted into view data automatically, i.e., optical signal is changed into electric signal, so as to facilitate the later stage to figure
As being handled.Described image data include the viewfinder image of the current shooting of camera 100.
In embodiments of the present invention, multiple cameras 100 are all connected with the signal multiplexing processor 200, the letter
Number multiplex processor 200 connects the back-end processor 300；The signal multiplexing processor 200 is used to obtaining multiple described take the photograph
As first 100 view data sent, multiple described image data are combined into multiplex data, and by the multiplex data send to
The back-end processor 300.
Above-mentioned signal multiplexing processor 200 has input multiplexer, can receive the image that multiple cameras 100 are sent
Data, and multiple images data are combined into multiplex data.It is so-called compound, it is that multiple images data are combined and compressed,
Multiplex data is obtained with this.
Above-mentioned signal multiplexing processor 200 generally only has output channel all the way, can send multiplex data to rear end
Processor 300.Now 300 needs of back-end processor parse to the multiplex data, and according to processing side set in advance
Multiplex data is processed into the composograph of certain effects by method.Certainly, the signal multiplexing processor 200 can also have multichannel
Output channel connects multiple back-end processors 300.The number of output channel about the signal multiplexing processor 200 is at this
It is not specifically limited in inventive embodiments.
Referring to Fig. 2, due to multi-cam 100 camera module at work, need phase interworking between multiple cameras 100
Work is closed, so generally distinguishing main camera 101 between multiple cameras 100 and from camera 102.It is i.e. multiple described to take the photograph
Picture first 100 includes main camera 101 and from camera 102, and the main camera 101 connects described from camera 102.It is multiple from
Camera 102 needs to be connected with the main camera 101, described to need to coordinate main camera 101 to carry out from camera 102
Exposure obtains view data.Under normal circumstances, be only provided with a camera module a main camera 101 with it is at least one
From camera 102.Certainly, multiple main cameras 101 can be set in the camera module, it is relevant depending on particular situation
The number of main camera 101 is not specifically limited in embodiments of the present invention.
About the above-mentioned detailed process for coordinating above-mentioned main camera 101 to be exposed from camera 102, typically main shooting
First 101 when will be exposed, and synchronizing signal is sent to from camera 102, described to be entered from camera 102 according to the synchronizing signal
Row exposure, to obtain the view data for including current viewfinder image.It is described from camera 102 can according to the synchronizing signal with
The main camera 101 is exposed simultaneously, or can be successively exposed according to order set in advance, to obtain
State view data.It is relevant described from 102 specific exposure process of camera, depending on particular situation, in the embodiment of the present invention
In be not specifically limited.
View data due to being exposed acquisition in synchronization usually requires splicing one in end processing sequences
Rise, so needing to ensure that the exposure value between multiple cameras 100 is identical.The light-inletting quantity of the exposure value and camera 100 and
Time for exposure is relevant.Time for exposure for some from camera 102, it usually needs according to the exposure value of main camera 101,
The light-inletting quantity of main camera 101 and it should be calculated from the light-inletting quantity of camera 102.Under normal circumstances each from shooting
First 102 time for exposure is that the back-end processor 300 is each exposed by iic bus write-in from the inside of camera 102 is relevant
In the register of time, each the numerical value from camera 102 in own register exposes the corresponding time.
And above-mentioned main camera 101 obtains the detailed process of view data, such as how time for exposure and exposure value are set
Etc., prior art is referred to, is not being repeated in embodiments of the present invention.
In order to which the back-end processor 300 obtains different effects, it is necessary to take the photograph when handling multiplex data in the later stage
As first 100 view data obtained meet specific requirement.Such as need image that there is the effect at big visual angle after treated, just
Need multiple cameras 100 while exposure is to obtain the view data including viewfinder image, being in end processing sequences will be more
Individual viewfinder image is stitched together to realize the effect at big visual angle according to certain arrangement.The now signal multiplexing processor
200 to multiple images data when being multiplexed, it is possible to carries out multiple images data according to the order of above-mentioned stitching image
Combination, is re-compressed into multiplex data.After back-end processor 300 has parsed multiplex data, without to multiple images data
Arranged, it is possible to directly handled.Now signal multiplexing processor 200 just serves the effect of a pretreatment, from
And pressure when further alleviating 300 composograph of back-end processor, accelerate the processing speed of back-end processor 300.
And since the signal multiplexing processor 200 needs multiple images data being multiplexed in a certain order,
Described image data are just needed to include identification information corresponding with the viewfinder image, now the signal multiplexing processor 200
It can be used for multiple described image data are combined into the multiplex data according to the identification information.
Specifically, the identification information for the corresponding viewfinder image that above-mentioned view data includes can be figure of being found a view described in acquisition
The equipment identification information of the camera 100 of picture or the corresponding time marking information for obtaining the viewfinder image, the mark
Equipment identification information and the time marking information can also be included simultaneously by knowing information.For being obtained in end processing sequences
Different effects, if such as go for the effect at big visual angle, it is necessary to the signal multiplexing processor 200 is by multiple images number
It is compound according to order set in advance progress according to the equipment identification information in each view data, to obtain multiplex data.
And it is which that the equipment identification information that each view data includes, which is the viewfinder image included for showing the view data,
What individual camera 100 was shot, when back-end processor 300 is spliced, avoid the need for the viewfinder image again to parsing
It is ranked up, can be directly spliced to realize the effect at big visual angle.
If HDR effect is gone for, it is necessary to which same camera 100 is carried out repeatedly successively for same viewfinder image
The exposure of different durations, i.e., a camera 100, which can shoot multiple to same position, has the figure of finding a view of different exposure values
Picture., it is necessary to which multiple viewfinder images are arranged according to exposure order when end processor 300 is handled in the rear.To
When above-mentioned viewfinder image is converted into view data, multiple images data can be sent out for each camera 100, now picture number
The corresponding time marking information for obtaining the viewfinder image can be included in.Now signal multiplexing processor 200 can root
Multiple images data are combined according to time marking information, i.e., group are carried out to multiple images data according to the sequencing of exposure
Close, and be compressed into multiplex data.And the time marking information that each view data includes is for showing in the view data
Including viewfinder image be exposed at which at moment, when back-end processor 300 is handled, avoid the need for again
The viewfinder image parsed is ranked up, can directly be handled to realize HDR effect.
If desired big visual angle and HDR effect are obtained simultaneously, needs to include equipment simultaneously in described image data
Identification information and time marking information.The signal multiplexing processor 200 now need first by multiple images data according to when
Between identification information be ranked up, in the multiple images data with same time marking information, according to equipment identification information
It is compound according to order set in advance progress, to obtain complex data.
Certainly, except above two effect, the back-end processor 300 can also obtain when handling multiplex data
Other effects are obtained, for example, it is background blurring etc., and the image obtained by the back-end processor 300 processing can be simultaneously
With multi-effect.Above-mentioned identification information, can be with addition to it can include equipment identification information and time marking information
There are other identification informations.The above is illustrative only, and is not the specific restriction to the present invention.Above-mentioned signal multiplexing
The identification information pair view data corresponding with viewfinder image that processor 200 can include according to multiple images data carries out group
Close, to reach the effect of pretreatment, so as to further alleviate pressure during 300 composograph of back-end processor, after quickening
Hold the processing speed of processor 300.
The said equipment identification information can be the device coding of corresponding camera 100 or the ID of the camera 100
Number or other equipment identification information, be not specifically limited in embodiments of the present invention.Above-mentioned time marking information can be logical
The time marking information that timing accumulator is identified is crossed, such as is exposed first time point corresponding to obtained viewfinder image
Time marking information is designated as one, is designated as in time marking information corresponding to the viewfinder image that second time point exposes to obtain second-class
Deng the time marking information is a kind of serial time signal.Under normal circumstances, when restarting to take pictures, it is necessary to which timing is tired out
Device is added to reset.The time marking information can also have other forms, in embodiments of the present invention in addition to above-mentioned form
It is not specifically limited.
A kind of camera module provided by the present invention, multiplex processor is added, the multiplex processor connection is multiple to take the photograph
As first 100 and back-end processor 300；The signal multiplexing processor 200 is used to obtain what multiple cameras 100 were sent
View data, multiple described image data are combined into multiplex data, and the multiplex data is sent to the back-end processing
Device 300；The multiplex processor, which can merge multiple images data group according to mode set in advance, is compressed into multiplex data,
So as to greatly reduce the data volume of the reception of back-end processor 300, pressure of the processor in composograph is reduced with this.
A kind of method of multilevel image data transmission provided in an embodiment of the present invention is introduced below, it is described below more
View data transmission method can be mutually to should refer to above-described camera module.
Fig. 3 is a kind of flow chart of multilevel image data transmission method provided in an embodiment of the present invention, and reference picture 3 is described more
View data transmission method can include：
S101：Signal multiplexing processor obtains the view data that multiple cameras are sent.
S102：Multiple images data are combined into multiplex data by signal multiplexing processor.
S103：Signal multiplexing processor sends multiplex data to back-end processor.
In embodiments of the present invention, described image data can be specially in multiple cameras from camera according to
The synchronizing signal that main camera is sent is exposed, to obtain the view data for including current viewfinder image.
In embodiments of the present invention, described image data can include identification information corresponding with the viewfinder image, this
Shi Suoshu S102 can include：
Multiple described image data are combined into the multiplex data by signal multiplexing processor according to the identification information.
In embodiments of the present invention, the identification information includes the device identification letter for obtaining the camera of the viewfinder image
Breath and/or the corresponding time marking information for obtaining the viewfinder image.
A kind of method of multilevel image data transmission of the present embodiment is used to use foregoing camera module, therefore more picture numbers
According to the embodiment part of the visible camera module hereinbefore of the embodiment in transmission method, so, its specific embodiment party
Formula is referred to the description of corresponding various pieces embodiment, will not be repeated here.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be with it is other
The difference of embodiment, between each embodiment same or similar part mutually referring to.For dress disclosed in embodiment
For putting, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part
Explanation.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, the composition and step of each example are generally described according to function in the above description.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The method of a kind of camera module provided by the present invention and multilevel image data transmission is described in detail above.
Specific case used herein is set forth to the principle and embodiment of the present invention, and the explanation of above example is simply used
Understand the method and its core concept of the present invention in help.It should be pointed out that for those skilled in the art,
Under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these are improved and modification
Fall into the protection domain of the claims in the present invention.
Claims (8)
1. a kind of camera module, it is characterised in that the camera module includes signal multiplexing processor, back-end processor and multiple
Camera；
Multiple cameras are all connected with the signal multiplexing processor, and the signal multiplexing processor connects the back-end processing
Device；
The signal multiplexing processor is used to obtain the view data that multiple cameras are sent, by multiple described image data
Multiplex data is combined into, and the multiplex data is sent to the back-end processor.
2. camera module according to claim 1, it is characterised in that multiple cameras include main camera and from taking the photograph
As head, the main camera connection is described from camera；
The main camera is used to send synchronizing signal from camera to described, described to be entered from camera according to the synchronizing signal
Row exposure, to obtain the view data for including current viewfinder image.
3. camera module according to claim 2, it is characterised in that described image data include and the viewfinder image pair
The identification information answered；
The signal multiplexing processor is used to multiple described image data are combined into the multiplexing number according to the identification information
According to.
4. camera module according to claim 3, it is characterised in that the identification information includes obtaining the viewfinder image
Camera equipment identification information and/or the corresponding time marking information for obtaining the viewfinder image.
A kind of 5. method of multilevel image data transmission, it is characterised in that methods described includes：
Signal multiplexing processor obtains the view data that multiple cameras are sent；
Multiple described image data are combined into multiplex data by the signal multiplexing processor；
The signal multiplexing processor sends the multiplex data to back-end processor.
6. according to the method for claim 5, it is characterised in that described image data are specially in multiple cameras
The synchronizing signal sent from camera according to main camera is exposed, to obtain the view data for including current viewfinder image.
7. according to the method for claim 6, it is characterised in that described image data include corresponding with the viewfinder image
Identification information；
Multiple described image data are combined into multiplex data by the signal multiplexing processor to be included：
Multiple described image data are combined into the multiplex data by the signal multiplexing processor according to the identification information.
8. according to the method for claim 7, it is characterised in that the identification information includes obtaining taking the photograph for the viewfinder image
Equipment identification information and/or the corresponding time marking information for obtaining the viewfinder image as head.
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Application publication date: 20180216 |