CN110166695A - Camera anti-fluttering method, device, electronic equipment and computer readable storage medium - Google Patents
Camera anti-fluttering method, device, electronic equipment and computer readable storage medium Download PDFInfo
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- CN110166695A CN110166695A CN201910559943.0A CN201910559943A CN110166695A CN 110166695 A CN110166695 A CN 110166695A CN 201910559943 A CN201910559943 A CN 201910559943A CN 110166695 A CN110166695 A CN 110166695A
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- camera
- angular velocity
- image
- velocity data
- initial position
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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
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/681—Motion detection
- H04N23/6812—Motion detection based on additional sensors, e.g. acceleration sensors
-
- 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
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
- H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
-
- 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
- H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
Abstract
This application involves a kind of camera anti-fluttering method, device, electronic equipment and computer readable storage mediums.The above method includes: the shooting instruction for receiving panoramic picture, camera, which is controlled, according to shooting instruction acquires first frame image, obtain the initial position of first frame image, control camera continues to acquire multiple image according to shooting instruction, and during acquisition, the angular velocity data of gyroscope output is obtained, and jitter compensation processing is carried out to camera according to angular velocity data and the initial position.Due to can be in photographing panorama picture, obtain initial position when camera acquisition first frame image, to carry out jitter compensation processing to camera according to angular velocity data and the initial position, the accuracy of camera stabilization can be improved during camera continues to acquire multiple image.
Description
Technical field
This application involves image technology fields, more particularly to a kind of camera anti-fluttering method, device, electronic equipment and meter
Calculation machine readable storage medium storing program for executing.
Background technique
With the fast development of image technology, the phenomenon that being taken pictures using camera, is more and more common.People are using
During camera is shot, existing leads to that the image of shooting is fuzzy, unsharp problem because of camera shake.At present
It is clear to being imaged that camera can weaken camera shake by technologies such as integrated optics stabilization, electronic flutter-proof, photoreceptor stabilizations
The influence of clear degree.
Summary of the invention
The embodiment of the present application provides a kind of camera anti-fluttering method, device, electronic equipment, computer readable storage medium,
The accuracy of camera stabilization can be improved.
A kind of camera anti-fluttering method, comprising:
The shooting instruction for receiving panoramic picture controls camera according to the shooting instruction and acquires first frame image；
Obtain the initial position when camera acquires the first frame image；
It controls the camera to be continued to acquire multiple image according to the shooting instruction, and during acquisition, obtains
The angular velocity data of gyroscope output, and the camera is shaken according to the angular velocity data and the initial position
Compensation deals.
A kind of camera anti-shake apparatus, comprising:
Image capture module controls camera according to the shooting instruction and adopts for receiving the shooting instruction of panoramic picture
Collect first frame image；
Position acquisition module, for obtaining the initial position when camera acquires the first frame image；
Stabilization compensating module, for control the camera according to the shooting instruction continue acquire multiple image, and
During acquisition, the angular velocity data of gyroscope output is obtained, and according to the angular velocity data and the initial position pair
The camera carries out jitter compensation processing.
A kind of electronic equipment, including memory and processor store computer program, the calculating in the memory
When machine program is executed by the processor, so that the processor executes following steps:
The shooting instruction for receiving panoramic picture controls camera according to the shooting instruction and acquires first frame image；
Obtain the initial position when camera acquires the first frame image；
It controls the camera to be continued to acquire multiple image according to the shooting instruction, and during acquisition, obtains
The angular velocity data of gyroscope output, and the camera is shaken according to the angular velocity data and the initial position
Compensation deals.
A kind of computer readable storage medium, is stored thereon with computer program, and the computer program is held by processor
Following steps are realized when row:
The shooting instruction for receiving panoramic picture controls camera according to the shooting instruction and acquires first frame image；
Obtain the initial position when camera acquires the first frame image；
It controls the camera to be continued to acquire multiple image according to the shooting instruction, and during acquisition, obtains
The angular velocity data of gyroscope output, and the camera is shaken according to the angular velocity data and the initial position
Compensation deals.
Above-mentioned camera anti-fluttering method, device, electronic equipment and computer readable storage medium, can be according to panoramic picture
Shooting instruction control camera acquire first frame image, obtain first frame image initial position, so that camera is according to bat
Take the photograph instruction to continue during acquiring multiple image, obtain the angular velocity data of gyroscope output, and according to angular velocity data and
The initial position carries out jitter compensation processing to camera, and the accuracy of camera stabilization can be improved.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the applied environment figure of camera anti-fluttering method in one embodiment；
Fig. 2 is the schematic diagram of image processing circuit in one embodiment；
Fig. 3 is the flow chart of camera anti-fluttering method in one embodiment；
Fig. 4 is the flow chart for carrying out jitter compensation processing in one embodiment to camera；
Fig. 5 is the schematic diagram for carrying out jitter compensation in one embodiment to camera；
Fig. 6 is the flow chart for carrying out jitter compensation processing in another embodiment to camera；
Schematic diagram of the Fig. 7 for the mobile range of one embodiment camera；
Fig. 8 is the schematic diagram of viewfinder area in one embodiment；
Fig. 9 is the flow chart that target panoramic picture is synthesized in one embodiment；
Figure 10 is the structural block diagram of the camera anti-shake apparatus of one embodiment；
Figure 11 is the structural block diagram of electronic equipment in one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
It is appreciated that term " first " used in this application, " second " etc. can be used to describe various elements herein
Or attribute, but these elements or attribute should not be limited by these terms.These terms are only used to by first element and another yuan
Part region, or an attribute and another attribute are distinguished.It for example, can in the case where not departing from scope of the present application
First direction is known as second direction, and similarly, second direction can be known as first direction.First direction and second direction
Both directions, but it is not same direction.
Fig. 1 is the application environment schematic diagram of camera anti-fluttering method in one embodiment.As shown in Figure 1, the application environment
Including electronic equipment 100.Wherein, electronic equipment 100 includes camera 110.Specifically, electronic equipment 100 can receive entirely
The shooting instruction of scape image controls camera 110 according to shooting instruction and acquires first frame image, obtains the acquisition of camera 110 the
Initial position when one frame image, and then control camera 110 and continued to acquire multiple image according to shooting instruction, and in acquisition
In the process, the angular velocity data of gyroscope output is obtained, and camera is prevented according to angular velocity data and the initial position
Tremble compensation deals.Electronic equipment 100 can be, but not limited to be various mobile phones, tablet computer or personal digital assistant or wearable
Equipment etc..
The embodiment of the present application also provides electronic equipment a kind of.Electronic equipment includes image processing circuit, image procossing electricity
Road can use hardware and or software component realization, it may include define ISP (Image Signal Processing, image letter
Number processing) pipeline various processing units.Fig. 2 is the schematic diagram of image processing circuit in one embodiment.As shown in Fig. 2, being
Convenient for explanation, the various aspects of image processing techniques relevant to the embodiment of the present application are only shown.
As shown in Fig. 2, image processing circuit includes ISP processor 240 and control logic device 250.Imaging device 210 captures
Image data handled first by ISP processor 240, ISP processor 240 to image data analyzed with capture can be used for really
The image statistics of fixed and/or imaging device 210 one or more control parameters.Imaging device 210 may include having one
The camera of a or multiple lens 212 and imaging sensor 214.Imaging sensor 214 may include colour filter array (such as
Bayer filter), imaging sensor 214 can obtain the luminous intensity captured with each imaging pixel of imaging sensor 214 and wavelength
Information, and the one group of raw image data that can be handled by ISP processor 240 is provided.Sensor 220 (such as gyroscope) can be based on biography
The parameter (such as stabilization parameter) of the image procossing of acquisition is supplied to ISP processor 240 by 220 interface type of sensor.Sensor 220
Interface can use SMIA (Standard Mobile Imaging Architecture, Standard Mobile Imager framework) interface,
The combination of other serial or parallel camera interfaces or above-mentioned interface.
In addition, raw image data can also be sent to sensor 220 by imaging sensor 214, sensor 220 can be based on biography
Raw image data is supplied to ISP processor 240 to 220 interface type of sensor or sensor 220 deposits raw image data
It stores up in video memory 230.
ISP processor 240 handles raw image data pixel by pixel in various formats.For example, each image pixel can
Bit depth with 8,10,12 or 14 bits, ISP processor 240 can carry out raw image data at one or more images
Reason operation, statistical information of the collection about image data.Wherein, image processing operations can be by identical or different bit depth precision
It carries out.
ISP processor 240 can also receive image data from video memory 230.For example, 220 interface of sensor will be original
Image data is sent to video memory 230, and the raw image data in video memory 230 is available to ISP processor 240
It is for processing.Video memory 230 can be independent special in a part, storage equipment or electronic equipment of memory device
It with memory, and may include DMA (Direct Memory Access, direct direct memory access (DMA)) feature.
When receiving from 214 interface of imaging sensor or from 220 interface of sensor or from video memory 230
When raw image data, ISP processor 240 can carry out one or more image processing operations, such as time-domain filtering.Treated schemes
As data can be transmitted to video memory 230, to carry out other processing before shown.ISP processor 240 is from image
Memory 230 receives processing data, and carries out in original domain and in RGB and YCbCr color space to the processing data
Image real time transfer.Treated that image data may be output to display 270 for ISP processor 240, for user's viewing and/or
It is further processed by graphics engine or GPU (Graphics Processing Unit, graphics processor).In addition, ISP processor
240 output also can be transmitted to video memory 230, and display 270 can read image data from video memory 230.?
In one embodiment, video memory 230 can be configured to realize one or more frame buffers.In addition, ISP processor 240
Output can be transmitted to encoder/decoder 260, so as to encoding/decoding image data.The image data of coding can be saved,
And it is decompressed before being shown in 270 equipment of display.Encoder/decoder 260 can be real by CPU or GPU or coprocessor
It is existing.
The statistical data that ISP processor 240 determines, which can be transmitted, gives control logic device Unit 250.For example, statistical data can wrap
Include the image sensings such as automatic exposure, automatic white balance, automatic focusing, flicker detection, black level compensation, 212 shadow correction of lens
214 statistical information of device.Control logic device 250 may include the processor and/or micro-control for executing one or more routines (such as firmware)
Device processed, one or more routines can statistical data based on the received, determine the control parameter and ISP processor of imaging device 210
240 control parameter.For example, the control parameter of imaging device 210 may include 220 control parameter of sensor (such as gain, exposure
The time of integration, stabilization parameter of control etc.), camera flash control parameter, 212 control parameter of lens (such as focus or zoom
With focal length) or these parameters combination.ISP control parameter may include for automatic white balance and color adjustment (for example, in RGB
During processing) 212 shadow correction parameter of gain level and color correction matrix and lens.
Imaging device 210 is camera provided by the embodiment of the present application, and electronic equipment is receiving panoramic picture
When shooting instruction, it can control imaging equipment 210 and start to shoot image, the available imaging device 210 of ISP processor 240 is adopted
Collect initial position when first frame image, and during imaging device 210 continues to acquire multiple image according to shooting instruction,
The angular velocity data that sensor 220 exports is obtained, and imaging device 210 is trembled according to the angular velocity data and initial position
Dynamic compensation deals.Optionally, in some embodiments, it is also possible to obtain imaging device 210 by the central processing unit of electronic equipment
Initial position when first frame image is acquired, and during imaging device 210 acquires multiple image according to shooting instruction, is obtained
The angular velocity data for taking sensor 220 to export, to carry out shake benefit to imaging device 210 according to angular velocity data and initial position
Repay processing.The difference of optical anti-vibration structure based on imaging device 210, electronic equipment are carrying out shake benefit to imaging device 210
When repaying processing, it can be through the camera lens in mobile imaging device 210 to realize that jitter compensation is handled, be also possible to pass through movement
Imaging device 210 is to realize that jitter compensation is handled, it is not limited here.
Fig. 3 is the flow chart of camera anti-fluttering method in one embodiment.Camera anti-fluttering method in the present embodiment, with
It is described for running on the electronic equipment in Fig. 1.As shown in figure 3, camera anti-fluttering method includes step 302 to step
306。
Step 302, the shooting instruction for receiving panoramic picture controls camera according to shooting instruction and acquires first frame image.
The shooting instruction of panoramic picture can be for what is generated by the button clicked on display screen, be also possible to user
It is generated by the control on pressing touch screen, electronic equipment can receive the shooting instruction to panoramic picture.Optionally, electronics
The mode adjustment of camera can be first panorama photographing mode by equipment, and show that current screening-mode is complete on a display screen
Scape mode receives the shooting instruction to panoramic picture under panning mode.
After electronic equipment receives the shooting instruction to panoramic picture, then controls camera and start to shoot image.In general, electric
When sub- equipment passes through camera capturing panoramic view image, shoot multi-frame images during camera is mobile are needed, to will clap
The multiple image taken the photograph synthesizes Zhang Quanjing's image.Wherein, the shooting that first frame image receives panoramic picture for electronic equipment refers to
The first frame image shot after order.
Step 304, initial position when camera acquisition first frame image is obtained.
The available camera of electronic equipment acquires initial position when first frame image.Initial position refers to acquisition first
The more specific location information of camera when frame image.Specifically, when electronic equipment can acquire first frame image according to camera, electricity
It is initial when the location of sub- equipment and camera position in the electronic device obtain camera acquisition first frame image
Position.Optionally, the position of camera can be embodied by the field of view of camera, and field of view refers to that camera is adopted
The picture range of the image of collection；Camera is located at the difference of field of view corresponding to different positions, and electronic equipment can will be adopted
Collect the camera position of the picture range of first frame image labeled as initial position, it is not limited here.
Step 306, control camera continues to acquire multiple image according to shooting instruction, and during acquisition, obtains
The angular velocity data of gyroscope output, and jitter compensation processing is carried out to camera according to angular velocity data and initial position.
Gyroscope is the angular movement detection device for detecting angular speed.During camera shoots image, if
When camera generates shake or movement, the clarity of camera imaging will affect, so that the image generation of acquisition is fuzzy.Gyro
Instrument can acquire simultaneously output angular velocity data when camera is shaken.In general, electronic equipment acquires panorama by camera
When image, shoot multi-frame images during camera is mobile are needed, so that the multiple image of shooting is synthesized a Zhang Quanjing
Image.Electronic equipment can will carry out stabilization compensation deals to camera in the shooting process of panoramic picture.
After electronic equipment acquires first frame image according to shooting instruction, it can be continued to acquire multiframe according to the shooting instruction
Image, and acquisition excessively in, obtain gyroscope output angular velocity data, according to camera acquire first frame image when just
Beginning position and angular velocity data to camera carry out jitter compensation processing.Specifically, electronic equipment can be according to the initial position
The jitter compensation data that camera is calculated with angular velocity data, thus according on the motor of the jitter compensation data-driven camera
Electricity can compensate the offset of camera so that the camera lens in motor driving camera or camera is mobile, improve camera shooting
The image command of head acquisition.
Under panning mode, electronic equipment provides the moving direction of camera in shooting process, and the moving direction is logical
On the basis of the first frame image often acquired for camera.User can be mobile according to the moving direction or rotates electronic equipment, from
And during electronic equipment is mobile or rotates, camera can collect the different image of multiframe field of view.However, people
It can not be often consistent with moving direction provided by electronic equipment for mobile or rotation electronic equipment direction.
Embodiment provided herein acquires first frame by camera stabilization compensation process, obtaining camera
Initial position when image, during camera continues to acquire multiple image according to shooting instruction, according to the initial position
With gyroscope output angular velocity data to camera carry out jitter compensation processing, can to avoid according to angular velocity data to camera shooting
Head carry out jitter compensation processing when camera shoot multi-frame images direction and electronic equipment provided by moving direction it is inconsistent
The problem of, the accuracy of camera stabilization when panoramic picture shooting can be improved.
In one embodiment, according to angular velocity data and location information to camera in the camera anti-fluttering method provided
Carry out the process of jitter compensation processing, comprising:
Step 402, the first shake data of camera in a first direction are analyzed according to angular velocity data.
First direction is the direction different from the moving direction of electronic equipment offer.In the embodiment of the present application, with first party
The vertical direction of the moving direction that Xiang Weiyu electronic equipment provides is illustrated, it is notable that first direction does not limit to
In the direction vertical with the moving direction that electronic equipment provides.The angular velocity data of gyroscope output contains camera in difference
Jitter conditions on direction, electronic equipment can be according to the angular velocity data analysis cameras that gyroscope exports in a first direction
First shake data.For example, when the first frame image that electronic equipment is acquired according to camera determines that the moving direction provided is
When being parallel to horizontal horizontal direction, first direction can be the direction perpendicular to ground level, and electronic equipment can be according to angle
Speed data analyzes the first shake data of camera in a first direction.
Step 404, the first position that camera is currently located is obtained.
Position where camera can be according to the position of the location of electronic equipment and camera in the electronic device
It sets to determine.The first position that the available camera of electronic equipment is currently located.
Step 406, camera is moved to the second position from first position according to the first shake data and initial position,
In, the second position and initial position in a first direction at a distance from be less than first position and initial position in a first direction away from
From.
First position refers to the position where the preceding camera of jitter compensation, and the second position, which refers to, shakes camera
The position where camera after compensation.Electronic equipment can acquire first frame image according to the first shake data and camera
When initial position camera is moved to the second position from first position, the second position and initial position are in a first direction
Distance be less than first position and initial position in a first direction at a distance from.The position of camera and initial position are in a first direction
On distance it is smaller, then illustrate that the offset between camera and moving direction is smaller, the utilization rate of acquired image is higher.It can
Selection of land, in some embodiments, the second position and initial position in a first direction at a distance from be 0.
In some embodiments, electronic equipment realizes that jitter compensation is handled by the camera lens in dollying head, then electric
The first position that camera lens is currently located in the sub- available camera of equipment, thus will according to the first shake data and initial position
Camera lens is moved to the second position from first position.
Fig. 5 is the schematic diagram for carrying out jitter compensation in one embodiment to camera.As shown in figure 5, region 502 is electronics
The mobile range of camera institute in equipment, initial position 504 are position when camera acquires first frame image, first position
506 be position of the camera before jitter compensation, and the second position 508 is the position after camera progress jitter compensation.Electricity
Sub- equipment deviates from preset moving direction 510, the angular velocity data that electronic equipment is exported according to gyroscope in moving process
Analyze first shake data of the camera in a first direction on 512, by according to initial position 504 and the first shake data to taking the photograph
As head carry out jitter compensation processing, can make compensation camera where the second position 508 and initial position 504 first
The distance in direction 512 is less than first position 506 at a distance from initial position 504 in a first direction 512, i.e., camera is acquiring
It maintains in the same direction, the accuracy of camera stabilization to can be improved when multiple image.Meanwhile it can be to avoid due to camera lens
Offset causes the image frame of acquisition inconsistent, needs the problem of significantly being sheared to obtain panoramic picture in synthesis,
The utilization rate of the image of acquisition and the quality of panoramic picture can be improved.
It is worth noting that be in this embodiment only to be illustrated to the jitter compensation mode on first direction, this
Other directions can also be carried out as moved while the jitter compensation for carrying out first direction to camera is handled in application embodiment
The jitter compensation processing in dynamic direction.
In one embodiment, the camera anti-fluttering method provided further include: obtain the moving direction of preset camera；
Jitter compensation processing is carried out to camera according to moving direction and angular velocity data.
Under panning mode, electronic equipment provides the moving direction of camera in shooting process, and user can basis
The moving direction is mobile or rotates electronic equipment, so that camera can acquire during electronic equipment is mobile or rotates
The image different to multiframe field of view.The moving direction of the available preset camera of electronic equipment.Electronic equipment according to
Moving direction and angular velocity data carry out jitter compensation processing to camera.Specifically, electronic equipment can receive panorama
After the shooting instruction of image, then jitter compensation processing is carried out to camera according to the moving direction and angular velocity data, so that electric
Sub- equipment can acquire each frame image based on the camera of jitter compensation.
When camera acquires multiple image in the moving process of electronic equipment, when electronic equipment has acquired a frame image
Afterwards, can be determined whether to shoot next frame image according to the amplitude of variation of electronic equipment mobile range or shooting picture.With electricity
Sub- equipment determines whether to be illustrated for shooting next frame image according to mobile range, when electronic equipment completes current frame image
After acquisition, electronic equipment can be when the mobile range of electronic equipment be more than default mobile range, under control camera acquisition
One frame image.Optionally, electronic equipment can difference between mobile range and default mobile range when being more than threshold value, control
Camera carries out jitter compensation processing to the direction opposite with moving direction；Difference between mobile range and predetermined amplitude is small
When threshold value, then camera is controlled to moving direction and carries out jitter compensation processing, the overlay region between multiple image can be improved
Domain avoids the difference between image excessive and leads to synthesize the poor problem of panoramic picture effect, improves the quality of panoramic picture.
Certainly, electronic equipment can also based on the amplitude of variation of shooting picture, according to moving direction and angular velocity data to camera into
The processing of row jitter compensation.
Optionally, electronic equipment can also be when controlling camera acquisition first frame image, according to moving direction and angle speed
Degree carries out jitter compensation processing to the direction opposite with moving direction according to by camera；In control camera capturing panoramic view image
In last frame image when, camera is carried out at jitter compensation to moving direction according to moving direction and angular velocity data
Reason, can increase the image frame that panoramic picture is included, improve the imaging effect of panoramic picture.
In one embodiment, according to moving direction and angular velocity data to camera in the camera anti-fluttering method provided
Carry out the process of jitter compensation processing, comprising:
Step 602, the viewfinder area of camera is in turn divided into first area and second area according to moving direction.
Specifically, electronic equipment is under the mode of pan-shot, can usually show on a display screen moving direction and
The viewfinder area of camera.Viewfinder area is the picture model of obtained panoramic picture after being shot by dollying head
It encloses.The viewfinder area of camera can be in turn divided into first area and second area according to moving direction by electronic equipment.It can
Selection of land, viewfinder area can only include first area and second area, also may include first area, second area and except the
Other regions except one region and second area.In some embodiments, electronic equipment can also be incited somebody to action according to moving direction
The viewfinder area of camera is in turn divided at least two regions.
Step 604, when the field of view of camera is in first area, according to angular velocity data control camera to
The opposite direction of moving direction carries out jitter compensation processing.
Electronic equipment can then be controlled according to angular velocity data and be imaged when the field of view of camera is in first area
Head carries out jitter compensation processing to the direction opposite with moving direction.Optionally, electronic equipment can be in the visual field area of camera
When the ratio of the area of the field of view of overlapping area and camera between domain and first area is more than fractional threshold, it is determined that
The field of view of camera is in first area.Fractional threshold can be set according to practical application request, such as can be 40%,
50%, 60% etc., it is without being limited thereto.
Step 606, when the field of view of camera is in second area, camera is controlled to shifting according to angular velocity data
Dynamic direction carries out jitter compensation processing.
Electronic equipment can then be controlled according to angular velocity data and be imaged when the field of view of camera is in second area
Head carries out jitter compensation processing to moving direction.Electronic equipment determines whether the field of view of camera is in the side of second area
Formula with determine whether field of view is in that the mode of first area is similar, and details are not described herein.
By the way that the viewfinder area of camera is divided into first area and second area according to moving direction, when camera
When field of view is in first area, then camera is controlled according to angular velocity data and trembled to the direction opposite with moving direction
Dynamic compensation deals then control camera to movement according to angular velocity data when the field of view of camera is in second area
Direction carries out jitter compensation processing, and the accuracy of camera stabilization can be improved and improve the picture range of panoramic picture.
In one embodiment, viewfinder area further includes the intermediate region between first area and second area；Electricity
Sub- equipment can also control camera to centre according to angular velocity data when the field of view of camera is in intermediate region
Position carry out jitter compensation processing, wherein middle position refer to camera moving direction mobile range interposition
It sets.
Viewfinder area further includes the intermediate region between first area and second area.That is electronic equipment can be according to
Viewfinder area is in turn divided into first area, intermediate region and second area by moving direction.At the field of view of camera
When intermediate region, electronic equipment can control camera according to angular velocity data and carry out jitter compensation processing to middle position.
Wherein, middle position refer to camera in the direction of movement mobile range middle position.
Schematic diagram of the Fig. 7 for the mobile range of one embodiment camera.As shown in fig. 7, region 702 is camera
The mobile range of institute, the direction of arrow meaning is moving direction in figure, then the as camera of middle position 704 is in movement side
Upwards mobile range middle position.
Fig. 8 is the schematic diagram of viewfinder area in one embodiment.As shown in figure 8, viewfinder area 802 can be according to movement side
To being in turn divided into first area 804, intermediate region 806 and second area 808.Electronic equipment can be according to the visual field of camera
Region locating for region carries out jitter compensation processing to camera using different jitter compensation directions, camera can be improved
The accuracy of stabilization.
In one embodiment, the camera anti-fluttering method that electronic equipment improves further include: obtain camera according to shooting
The multiple image of instruction acquisition.Multiple image is subjected to synthesis processing, obtains target panoramic picture.
Camera according to the multiple image that shooting instruction acquires include first frame image and acquisition first frame image it is subsequent
The multiple image of continuous acquisition.Synthesis processing refers to the operation that multiple image is generated to final image according to certain rule.Electronics
Multiple image is carried out synthesis processing to obtain target panoramic picture by equipment.Specifically, electronic equipment can be by detecting multiframe
The image information for including in image, to determine the image-region being overlapped in different images or same characteristic features in different images
Position obtains so as to which multiple image is carried out splicing synthesis by the position of the image-region and same characteristic features point that are overlapped image
To target panoramic picture.Optionally, electronic equipment can in conjunction with SIFT (Scale-invariant feature transform,
Scale invariant feature conversion) and RANSAC (Random Sample Consensus, random sampling are consistent) etc. find different figures
The matched same characteristic features point as in.
By the way that during controlling camera according to shooting instruction acquisition multiple image, the angle according to gyroscope output is fast
Initial position when degree evidence and camera acquisition first frame image carries out jitter compensation processing to camera, it is ensured that camera shooting
The multiple image and first frame image of head acquisition are kept in the same direction, so that the target panoramic picture of synthesis can be preferably
The image frame for retaining camera shooting avoids shifting when camera is mobile and needing in synthesis panoramic picture to image
The quality of target panoramic picture can be improved in the case where significantly being sheared.
In one embodiment, multiple image is subjected to synthesis processing in the camera anti-fluttering method provided, obtains target
The process of panoramic picture, comprising:
Step 902, the corresponding angular velocity data of each frame image is obtained.
The corresponding angular velocity data of image refers to the angular velocity data that gyroscope exports within the time for exposure of the image.Often
The corresponding angular velocity data of one frame image can be one or more.
Step 904, the offset data of image corresponding with angular velocity data is calculated according to angular velocity data.
Electronic equipment calculates the offset data of image corresponding with angular velocity data according to angular velocity data.Specifically, electric
Sub- equipment first can determine positional shift of the camera when acquiring image according to angular velocity data, and then according to positional shift meter
The offset data of nomogram picture.Positional shift refers to the offset of camera lens position when imaging sensor acquires image.Offset data
Refer to inclined between the position of the pixel for the image that the case where each pixel is not shaken relative to equipment in image acquires
Difference.Specifically, offset data includes angle, direction, the offset etc. of each pixel offset in image.
Electronic equipment can determine that the image of image is inclined by default bias transfer function when getting positional shift
Move data.Default bias transfer function can be obtained according to specific calibration mode, default bias transfer function can be used for by
The positional shift of camera lens is converted to the offset data of image.Wherein it is possible to bring into camera lens in the offset of different directions to pre-
If deviating corresponding variable in transfer function, the offset data of image is obtained by calculating.
Step 906, processing is compensated according to offset data pair image corresponding with angular velocity data.
There is offset in the image information that the image that electronic equipment acquires in dither process includes.Electronic equipment can basis
Offset data pair image corresponding with angular velocity data compensates processing, and specifically, electronic equipment can be according to offset data
In angle, direction, offset to image carry out include but is not limited to be rotation, translation, shearing etc. adjustment.
Step 908, the multiple image after compensation deals is subjected to synthesis processing, obtains target panoramic picture.
By determining the offset data of image corresponding with angular velocity data according to angular velocity data, according to the offset data
Jitter compensation processing is carried out to image, treated that multiple image carries out synthesis processing by jitter compensation, then obtains target panorama
Image.Second compensation processing can be carried out according to angular velocity data, the accuracy of compensation deals can be improved, and improve synthesis
Target panoramic picture quality.
It should be understood that although each step in the flow chart of Fig. 3,4,6,9 is successively shown according to the instruction of arrow,
But these steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein, these
There is no stringent sequences to limit for the execution of step, these steps can execute in other order.Moreover, in Fig. 3,4,6,9
At least part step may include multiple sub-steps perhaps these sub-steps of multiple stages or stage be not necessarily
Synchronization executes completion, but can execute at different times, and the execution sequence in these sub-steps or stage also need not
Be so successively carry out, but can at least part of the sub-step or stage of other steps or other steps in turn or
Person alternately executes.
Figure 10 is the structural block diagram of the camera anti-shake apparatus of one embodiment.As shown in Figure 10, which fills
It sets and includes:
Image capture module 1002 controls camera according to shooting instruction and adopts for receiving the shooting instruction of panoramic picture
Collect first frame image.
Position acquisition module 1004, for obtaining initial position when camera acquisition first frame image.
Stabilization compensating module 1006 continues to acquire multiple image according to shooting instruction, and is acquiring for controlling camera
During, the angular velocity data of gyroscope output is obtained, and tremble to camera according to angular velocity data and initial position
Dynamic compensation deals.
Camera anti-shake apparatus provided by the embodiment of the present application, in camera stabilization compensation process, acquisition to be taken the photograph
Initial position when first frame image is acquired as head, during camera continues to acquire multiple image according to shooting instruction,
Jitter compensation processing is carried out to camera according to the angular velocity data that the initial position and gyroscope export, it can be to avoid according to angle
Speed data to camera carry out jitter compensation processing when camera shoot multi-frame images direction and electronic equipment provided by
The inconsistent problem of moving direction, the accuracy of camera stabilization when panoramic picture shooting can be improved.
In one embodiment, stabilization compensating module 1006 can be also used for analyzing camera according to angular velocity data the
The first shake data on one direction；Obtain the first position that camera is currently located；According to the first shake data and initial bit
Set and camera be moved to the second position from first position, wherein the second position and initial position in a first direction at a distance from
Less than first position and initial position in a first direction at a distance from.
In one embodiment, stabilization compensating module 1006 can be also used for obtaining the moving direction of preset camera；
Jitter compensation processing is carried out to camera according to moving direction and angular velocity data.
In one embodiment, stabilization compensating module 1006 can be also used for the area of finding a view according to moving direction by camera
Domain is in turn divided into first area and second area；When the field of view of camera is in first area, according to angular speed number
Jitter compensation processing is carried out to the direction opposite with moving direction according to control camera；When the field of view of camera is in second
When region, camera is controlled according to angular velocity data and carries out jitter compensation processing to moving direction.
In one embodiment, stabilization compensating module 1006 can be also used for being in middle area when the field of view of camera
When domain, camera is controlled according to angular velocity data and carries out jitter compensation processing to middle position, wherein middle position refers to camera shooting
Head moving direction mobile range middle position.
In one embodiment, the camera anti-shake apparatus provided further includes synthesis processing module 1008, synthesis processing mould
Block 1008 is for obtaining the multiple image that camera is acquired according to shooting instruction；Multiple image is subjected to synthesis processing, obtains mesh
Mark panoramic picture.
In one embodiment, synthesis processing module 1008 can be also used for obtaining the corresponding angular speed number of each frame image
According to；The offset data of image corresponding with angular velocity data is calculated according to angular velocity data；According to offset data pair and angular speed
The corresponding image of data compensates processing；Multiple image after compensation deals is subjected to synthesis processing, obtains target panorama sketch
Picture.
The division of modules is only used for for example, in other embodiments, can incite somebody to action in above-mentioned camera anti-shake apparatus
Camera anti-shake apparatus is divided into different modules as required, to complete all or part of function of above-mentioned camera anti-shake apparatus
Energy.
Figure 11 is the schematic diagram of internal structure of electronic equipment in one embodiment.As shown in figure 11, which includes
The processor and memory connected by system bus.Wherein, for the processor for providing calculating and control ability, support is entire
The operation of electronic equipment.Memory may include non-volatile memory medium and built-in storage.Non-volatile memory medium is stored with
Operating system and computer program.The computer program can be performed by processor, for realizing following each embodiment institute
A kind of camera anti-fluttering method provided.Built-in storage provides for the operating system computer program in non-volatile memory medium
The running environment of cache.The electronic equipment can be mobile phone, tablet computer or personal digital assistant or wearable device
Deng.
Realizing for the modules in camera anti-shake apparatus provided in the embodiment of the present application can be computer program
Form.The computer program can be run in terminal or server.The program module that the computer program is constituted is storable in end
On the memory of end or server.When the computer program is executed by processor, method described in the embodiment of the present application is realized
The step of.
The embodiment of the present application also provides a kind of computer readable storage mediums.One or more is executable comprising computer
The non-volatile computer readable storage medium storing program for executing of instruction, when the computer executable instructions are executed by one or more processors
When, so that the step of processor executes camera anti-fluttering method.
A kind of computer program product comprising instruction, when run on a computer, so that computer executes camera shooting
Head anti-fluttering method.
It may include non-to any reference of memory, storage, database or other media used in the embodiment of the present application
Volatibility and/or volatile memory.Suitable nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM), it is used as external cache.By way of illustration and not limitation, RAM in a variety of forms may be used
, such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDR SDRAM),
Enhanced SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM).
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to the application the scope of the patents therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the concept of this application, various modifications and improvements can be made, these belong to the guarantor of the application
Protect range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of camera anti-fluttering method characterized by comprising
The shooting instruction for receiving panoramic picture controls camera according to the shooting instruction and acquires first frame image；
Obtain the initial position when camera acquires the first frame image；
It controls the camera to be continued to acquire multiple image according to the shooting instruction, and during acquisition, obtains gyro
The angular velocity data of instrument output, and jitter compensation is carried out to the camera according to the angular velocity data and the initial position
Processing.
2. the method according to claim 1, wherein described according to the angular velocity data and the location information
Jitter compensation processing is carried out to the camera, comprising:
The the first shake data of the camera in a first direction are analyzed according to the angular velocity data；
Obtain the first position that the camera is currently located；
The camera is moved to the second position from first position according to the first shake data and the initial position,
In, the second position and the initial position in a first direction at a distance from be less than the first position and the initial position
Distance in a first direction.
3. the method according to claim 1, wherein the method also includes:
Obtain the moving direction of the preset camera；
Jitter compensation processing is carried out to the camera according to the moving direction and the angular velocity data.
4. according to the method described in claim 3, it is characterized in that, described according to the moving direction and the angular velocity data
Jitter compensation processing is carried out to the camera, comprising:
The viewfinder area of the camera is in turn divided into first area and second area according to the moving direction；
When the field of view of the camera is in the first area, the camera is controlled according to the angular velocity data
Jitter compensation processing is carried out to the direction opposite with the moving direction；
When the field of view of the camera is in the second area, the camera is controlled according to the angular velocity data
Jitter compensation processing is carried out to the moving direction.
5. according to the method described in claim 4, it is characterized in that, the viewfinder area further includes being located at first area and second
Intermediate region between region；The method also includes:
When the field of view of the camera is in intermediate region, the camera is controlled according to the angular velocity data
Between position carry out jitter compensation processing, wherein the middle position refers to that the camera can be moved in the moving direction
Range middle position.
6. the method according to any one of claims 1 to 5, which is characterized in that the method also includes:
Obtain the multiple image that the camera is acquired according to the shooting instruction；
Multiple image is subjected to synthesis processing, obtains target panoramic picture.
7. according to the method described in claim 6, obtaining target it is characterized in that, described carry out synthesis processing for multiple image
Panoramic picture, further includes:
Obtain the corresponding angular velocity data of each frame image；
The offset data of image corresponding with the angular velocity data is calculated according to the angular velocity data；
Processing is compensated to the image corresponding with the angular velocity data according to the offset data；
Multiple image after compensation deals is subjected to synthesis processing, obtains target panoramic picture.
8. a kind of camera anti-shake apparatus characterized by comprising
Image capture module controls camera acquisition the according to the shooting instruction for receiving the shooting instruction of panoramic picture
One frame image；
Position acquisition module, for obtaining the initial position when camera acquires the first frame image；
Stabilization compensating module continues to acquire multiple image according to the shooting instruction, and is acquiring for controlling the camera
During, the angular velocity data of gyroscope output is obtained, and according to the angular velocity data and the initial position to described
Camera carries out jitter compensation processing.
9. a kind of electronic equipment, including memory and processor, computer program, the computer are stored in the memory
When program is executed by the processor, so that the processor executes the camera as described in any one of claims 1 to 7 and prevents
The step of fluttering method.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of method as described in any one of claims 1 to 7 is realized when being executed by processor.
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