CN109495689A

CN109495689A - A kind of image pickup method, device, electronic equipment and storage medium

Info

Publication number: CN109495689A
Application number: CN201811641102.6A
Authority: CN
Inventors: 王涛
Original assignee: Beijing Megvii Technology Co Ltd
Current assignee: Beijing Megvii Technology Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2019-03-19
Anticipated expiration: 2038-12-29
Also published as: CN109495689B

Abstract

The present invention provides a kind of image pickup method, device, electronic equipment and storage mediums, for quickly adjusting the acquisition parameters of camera when determining in preview image or switching region-of-interest.The described method includes: obtaining acquisition parameters value when first camera is shot using each region in the N number of image-region for including in preview image as region-of-interest respectively when carrying out preview to target scene, obtaining N group acquisition parameters value altogether；According to the mapping relations of the acquisition parameters value of preset first camera and the acquisition parameters value of second camera, the N group target acquisition parameters value of the second camera corresponding with the N group acquisition parameters value is determined；According to the current region-of-interest of the preview image, determine it is one group corresponding with the current region-of-interest described in best acquisition parameters value be the first shooting parameter value, and optimum target acquisition parameters value described in determining one group is the second shooting parameter value.

Description

A kind of image pickup method, device, electronic equipment and storage medium

Technical field

The present invention relates to field of information processing more particularly to a kind of image pickup method, device, electronic equipment and storage mediums.

Background technique

With the continuous development of science and technology, the function of electronic equipment is stronger and stronger, and most of electronic equipment is all arranged There is camera to provide shooting function.User can determine bat when shooting using electronic equipment by preview interface The region-of-interest taken the photograph, for example, user can select region-of-interest by clicking any position of preview interface.

In the prior art, in order to keep the shooting effect of region-of-interest best, camera can be calculated for region-of-interest Acquisition parameters value (such as Focusing parameter value, exposure parameter values), and camera is arranged with the acquisition parameters value calculated.This Sample, if there is the switching of region-of-interest, then just requiring to recalculate and adjust camera according to new region-of-interest Acquisition parameters value, so the more time can be spent.Also, it can also allow user visually intuitively to realize and recalculate shooting The process of parameter value, such as preview screen clarity and preview brightness jump etc., influence user experience.

Summary of the invention

This specification embodiment provides a kind of image pickup method, device, electronic equipment and storage medium, in preview graph The acquisition parameters of camera are determined or quickly adjusted when switching region-of-interest as in.

In a first aspect, being applied to electronic equipment the present invention provides a kind of image pickup method, the electronic equipment includes first Camera and second camera, which comprises

When carrying out preview to target scene, first camera N number of figure to include in preview image respectively is obtained As each region in region is best acquisition parameters value when region-of-interest is shot, total acquisition N group most preferably shooting ginseng Numerical value, N are the integer greater than 1；

According to the mapping relations of the acquisition parameters value of preset first camera and the acquisition parameters value of second camera, really The N group optimum target acquisition parameters value of the fixed second camera corresponding with the best acquisition parameters value of the N group；

According to the current region-of-interest of the preview image, determined in the best acquisition parameters value of the N group with it is described Best acquisition parameters value described in current region-of-interest is one group corresponding is the first shooting parameter value, and in the best mesh of N group Mark acquisition parameters value in determine it is one group corresponding with the current region-of-interest described in optimum target acquisition parameters value be second Acquisition parameters value, so that first camera uses institute using the first shooting parameter value and the second camera It states the second shooting parameter value and shoots the target scene.

Optionally, described when carrying out preview to target scene, acquisition first camera is respectively in preview image The each region in N number of image-region for including is best acquisition parameters value when region-of-interest is shot, comprising:

The range of parameter values of acquisition parameters based on first camera, to the parameter values of the acquisition parameters according to pre- If mode carries out parameter adjustment, and first camera collects the M width of the target scene during the adjustment that gets parms Image, each image in the M width image include N number of image-region, and M is the integer greater than 1；

According to the clarity for the N number of image-region for including in each image, determine N number of image-region In best acquisition parameters value of each region when being shot as the region-of-interest.

Optionally, the clarity according to the N number of image-region for including in each image, determination will be described Best acquisition parameters value when any region in N number of image-region is shot as the region-of-interest, comprising:

For each image-region in N number of image-region, the image-region is clear in the M width image Degree；

By the corresponding acquisition parameters value of the highest image of the clarity of the image-region, as using the image-region as institute State the best acquisition parameters value of region-of-interest.

Optionally, the acquisition parameters of first camera are Focusing parameter and/or exposure parameter, the second camera Target acquisition parameters also correspond to Focusing parameter and/or exposure parameter.

Optionally, it is in the acquisition parameters of first camera and the target acquisition parameters of the second camera When the Focusing parameter, the mapping of the acquisition parameters value of the acquisition parameters value and second camera of preset first camera Relationship obtains in the following manner:

The adjusting range of camera site based on target object is gradually adjusted the position of the target object, really Fixed first camera shoots the Focusing parameter value of the target object at each position, and determines second camera shooting Head shoots the Focusing parameter value of the target object at each position；

According to the Focusing parameter value of first camera at each position and pair of the second camera Burnt parameter value establishes the mapping relations.

Optionally, it is in the acquisition parameters of first camera and the target acquisition parameters of the second camera When the exposure parameter, the mapping of the acquisition parameters value of the acquisition parameters value and second camera of preset first camera Relationship obtains in the following manner:

The exposure parameter values of first camera and the exposure parameter values of the second camera are gradually adjusted, so that The brightness of image of the collected multiple image of first camera and the figure of the collected multiple image of the second camera Image brightness is identical；

According to the exposure parameter values of first camera collection image corresponding with each identical image brightness and institute The exposure parameter values for stating second camera acquisition image, establish the mapping relations.

Second aspect, the present invention provides a kind of filming apparatus, are applied to electronic equipment, and the electronic equipment includes first Camera and second camera, described device include:

First obtains module, for when carrying out preview to target scene, obtaining first camera respectively with preview The each region in N number of image-region for including in image is best acquisition parameters value when region-of-interest is shot, and is amounted to It obtains N and most preferably organizes acquisition parameters value, N is the integer greater than 1；

Second obtains module, for being joined according to the acquisition parameters value of preset first camera and the shooting of second camera The mapping relations of numerical value determine that the N group optimum target of the second camera corresponding with the best acquisition parameters value of the N group is clapped Take the photograph parameter value；

Processing module, for the current region-of-interest according to the preview image, in the best acquisition parameters value of the N group Determine it is one group corresponding with the current region-of-interest described in best acquisition parameters value be the first shooting parameter value, and in institute State determined in N group optimum target acquisition parameters value it is one group corresponding with the current region-of-interest described in optimum target shooting ginseng Numerical value is the second shooting parameter value, so that first camera is taken the photograph using the first shooting parameter value and described second As head shoots the target scene using the second shooting parameter value.

Optionally, the first acquisition module is specifically used for:

Optionally, it is in the acquisition parameters of first camera and the target acquisition parameters of the second camera When Focusing parameter, the mapping relations of the acquisition parameters value of the acquisition parameters value and second camera of preset first camera It obtains in the following manner:

Optionally, it is in the acquisition parameters of first camera and the target acquisition parameters of the second camera When exposure parameter, the mapping relations of the acquisition parameters value of the acquisition parameters value and second camera of preset first camera It obtains in the following manner:

The third aspect, this specification embodiment provide a kind of electronic equipment, and the electronic equipment includes processor, the place Such as aforementioned first aspect shooting side as described in the examples is realized when reason device is for executing the computer program stored in memory The step of method.

Fourth aspect, this specification embodiment provide a kind of readable storage medium storing program for executing, are stored thereon with computer program, institute State the step of image pickup method as described in the examples such as aforementioned first aspect is realized when computer program is executed by processor.

Said one or multiple technical solutions in the embodiment of the present application at least have following one or more technology effects Fruit:

In the technical solution of this specification embodiment, when carrying out preview to target scene, first camera is obtained Best shooting ginseng when being shot respectively using each region in the N number of image-region for including in preview image as region-of-interest Numerical value；According to the mapping relations of the acquisition parameters value of preset first camera and the acquisition parameters value of second camera, determine The N group optimum target acquisition parameters value of the second camera corresponding with the best acquisition parameters value of the N group；According to described pre- It lookes at the current region-of-interest of image, the first acquisition parameters of the first camera is determined in the best acquisition parameters value of the N group Value, and determine that the second of second camera shoots parameter value in the N group optimum target acquisition parameters value.Above scheme In, in previews, when calculated in advance using each image-region as region-of-interest, the first camera and the second camera shooting The best acquisition parameters value of head is directly calculated in advance to realize when carrying out region-of-interest selection or region-of-interest switches The corresponding acquisition parameters value for choosing each camera, reaches the bat for quickly adjusting each camera in good best acquisition parameters value The purpose for taking the photograph parameter value has saved the parameter adjustment time of each camera.Further, the scheme in this specification embodiment Acquisition parameters value can be quickly adjusted, is not in the prior art because of the preview that the adjustment of prolonged parameter occurs therefore The jump of the clarity, exposure at interface, and then improve user experience.

Detailed description of the invention

Fig. 1 is a kind of possible terminal system schematic diagram that this specification embodiment provides；

Fig. 2 is the flow chart for the image pickup method that first aspect provides in this specification embodiment；

Fig. 3 is a kind of schematic diagram for filming apparatus that second aspect provides in this specification embodiment.

Specific embodiment

In order to solve the above technical problem, the present invention provides technical solution thinking it is as follows:

When carrying out preview to target scene, first camera N number of figure to include in preview image respectively is obtained As each region in region is best acquisition parameters value when region-of-interest is shot；According to preset first camera The mapping relations of acquisition parameters value and the acquisition parameters value of second camera, determination are corresponding with the best acquisition parameters value of the N group The second camera N group optimum target acquisition parameters value；According to the current region-of-interest of the preview image, described The first shooting parameter value of the first camera is determined in the best acquisition parameters value of N group, and is shot in the N group optimum target The second shooting parameter value of second camera is determined in parameter value.In above scheme, in previews, calculate in advance with When each image-region is as region-of-interest, the best acquisition parameters value of the first camera and second camera, to realize It is corresponding directly in the best acquisition parameters value calculated in advance to choose when carrying out region-of-interest selection or region-of-interest switches The acquisition parameters value of each camera achievees the purpose that the acquisition parameters value for quickly adjusting each camera, has saved each take the photograph As the parameter adjustment time of head.Further, the scheme in this specification embodiment can quickly adjust acquisition parameters value, because This, is not in the prior art the jump because of the clarity, exposure for the preview interface that the adjustment of prolonged parameter occurs, And then improve user experience.

Technical solution of the present invention is described in detail below by attached drawing and specific embodiment, it should be understood that the application Specific features in embodiment and embodiment are the detailed description to technical scheme, rather than to present techniques The restriction of scheme, in the absence of conflict, the technical characteristic in the embodiment of the present application and embodiment can be combined with each other.

The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes System, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, herein Middle character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".

For convenience of the technical solution in this specification embodiment is introduced, first correspond to in this specification embodiment The terminal system of image pickup method is introduced.Referring to FIG. 1, being a kind of possible terminal system schematic diagram.In Fig. 1, terminal System 100 is the system for including touch input unit 101.It will be appreciated, however, that the system may also include it is one or more its His physical user-interface device, such as physical keyboard, mouse and/or control stick.The operation platform of terminal system 100 may be adapted to transport The one or more operating systems of row, such as Android (Android) operating system, Windows (form) operating system, apple IOS Operating system, BlackBerry (blackberry, blueberry) operating system, the general-purpose operating systems such as Google's Chrome operating system.However, In other embodiments, terminal system 100 can also run dedicated operating system rather than the general-purpose operating system.

In certain embodiments, terminal system 100 can be supported to run one or more application programs simultaneously, including but unlimited One or more application programs in following application program: disk management application program, safety encryption application program, permission pipe Manage application program, application program, word-processing application, presentation slides application program, spreadsheet application is arranged in system Procedure, data library application program, game application, telephony application, videoconference application, e-mail applications journey Sequence, instant message application program, photo management application program, digital camera applications program, digital video camera application program, Web-browsing application program, digital music player application and digital video player application etc..

The operating system and various application programs run in terminal system can be used touch input unit 101 as use Family is physically entered interface device.Touch input unit 101 has a touch-surface as user interface.Optionally, it touches The touch-surface of formula input unit 101 is display 102 surface of screen, and touch input unit 101 and display screen 102 are common Form touch-sensitive display panel 120, however in further embodiments, touch input unit 101 have it is one independent, not with its The touch-surface that his EM equipment module shares.Touch-sensitive display panel is still further comprised is on touch input unit 101 for detecting The no one or more contact sensors 106 being in contact.

Touch-sensitive display panel 120 optionally uses LCD (liquid crystal display, Liquid Crystal Display) technology, LPD (light emitting polymer displays, Laser-powered Phosphor Display) technology or LED (light emitting diode) technology, or Other any technologies that image may be implemented and show.Touch-sensitive display panel 120 further can be used currently known or develop later Any one of a variety of touch-sensing technologies detects any movement or blocking of contact and contact, such as capacitive sensing technology Or resistive sensing technology.In some embodiments, touch-sensitive display panel 120 can detect simultaneously single contact point or multiple contact points and It moves changing condition.

In addition to touch input unit 101 is with optional display screen 102, terminal system 100 may also include memory At 103 (it optionally includes one or more computer readable storage mediums), Memory Controller 104 and one or more Device (Processor) 105 is managed, components above can be communicated by one or more signal bus 107.

Memory 103 may include caching (Cache), high-speed random access memory (RAM), such as common double data Rate Synchronous Dynamic Random Access Memory (DDR SDRAM), and may also include nonvolatile memory (NVRAM), such as one Or multiple read-only memory (ROM), disk storage equipment, flash memory (Flash) memory devices or other nonvolatile solid states are deposited Storage device such as CD (CD-ROM, DVD-ROM), floppy disk or data tape etc..Memory 103 can be used for storing aforementioned operation System and application software, and generated and received various types data in system work process.Storage control 104 The other component of controllable system 100 accesses memory 103.

Processor 105 is for running or executing the operating system being stored in internal storage 103, various software journeys Sequence and the instruction set of itself, and for handling from touch input unit 101 or being received from other external input approach The data and instruction arrived, to realize the various functions of system 100.Processor 105 can include but is not limited to central processing unit (CPU), general image processor (GPU), microprocessor (MCU), digital signal processor (DSP), field programmable gate Array (FPGA), one of application specific integrated circuit (ASIC) or a variety of.In some embodiments, it processor 105 and deposits Memory controller 104 can be realized on a single chip.In some other embodiments, they can be respectively in core independent of each other On piece is realized.

In Fig. 1, signal bus 107 is configured as communicating the various components connection of terminal system 100.It should manage Solution, the configuration of signal bus 107 shown in FIG. 1 and connection type are exemplary and not limiting.Depending on specifically answering With environment and hardware configuration requirement, in other embodiments, signal bus 107 can use other differences but for art technology The usual connection type of personnel and its routinely combination or variation, to realize required signal connection between various components.

Further, in certain embodiments, terminal system 100 also may include peripheral equipment I/O interface 111, RF circuit 112, voicefrequency circuit 113, loudspeaker 114, microphone 115, photographing module 116.Equipment 100 may also include one or more differences The sensor module 118 of type.

RF (radio frequency) circuit 112 is for sending and receiving radiofrequency signal to realize and be communicated with other communication equipments.RF Circuit 112 may include but be not limited to antenna system, RF transceiver, one or more amplifiers, tuner, one or more oscillations Device, digital signal processor, codec chip group, subscriber identity module (SIM) card, memory etc..RF circuit 112 is optionally It is communicated by wireless communication with network and other equipment, which is such as internet (also referred to as WWW (WWW)), Intranet and/or wireless network (such as cellular phone network, WLAN (LAN) and/or Metropolitan Area Network (MAN) (MAN)).RF Circuit 112 may also include the circuit for detecting the field near-field communication (NFC).One or more communication marks can be selected in wireless communication Quasi-, agreement and technology, including but not limited to global system for mobile communications (GSM), enhanced data gsm environment (EDGE), high speed Downlink packets access (HSDPA), High Speed Uplink Packet access (HSUPA), evolution, clear data (EV-DO), HSPA, HSPA+, double unit HSPA (DC-HSPDA), long term evolution (LTE), near-field communication (NFC), wideband code division multiple access (W-CDMA), CDMA (CDMA), time division multiple acess (TDMA), bluetooth, Bluetooth Low Energy, Wireless Fidelity (Wi-Fi) are (for example, IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n and/or IEEE 802.11ac), Internet protocol Voice (VoIP), Wi-MAX, email protocol are (for example, internet message access protocol (IMAP) and/or post office protocol (POP)), instant message is (for example, scalable message handles and expands there are agreement (XMPP), for instant message and in the presence of utilizing Session initiation Protocol (SIMPLE), instant message and the presence service (IMPS) of exhibition), and/or short message service (SMS) or Including in the application submission date also it is untapped go out communication protocol any other communication protocol appropriate.

Voicefrequency circuit 113, loudspeaker 114 and microphone 115 provide the audio interface between user and terminal system 100. Voicefrequency circuit 113 receives audio data from exterior I/O port 111, and audio data is converted to electric signal, and by electric signal transmission To loudspeaker 114.Loudspeaker 114 converts electrical signals to the audible sound wave of the mankind.Voicefrequency circuit 113 is also received by microphone 115 electric signals converted according to sound wave.Voicefrequency circuit 113 can further convert electrical signals to audio data, and by audio number According to being transferred to exterior I/O port 111 to be sent to external device processes.Audio data can be in processor 105 and storage control Under 104 control, it is transferred to memory 103 and/or RF circuit 112.In some embodiments, voicefrequency circuit 113 may be used also It is connected to earphone microphone interface.

Photographing module 116 is used to carry out still image and video capture according to the instruction from processor 105.Image mould Block 116 can have lens device 1161 and image sensor 1162, can be received by lens assembly 1161 and be believed from extraneous light Number, and by image sensor 1162, such as metal-oxide complementary type phototransistor (CMOS) sensor or charge-coupled device Part (CCD) sensor, converts optical signals to electric signal.Photographing module 116 can further have image processor (ISP) 1163, for aforementioned electric signal to be carried out processing correction, and it is converted into specific image format file, such as JPEG (joint figure As panel of expert) image file, TIFF (label image file format) image file etc..Image file can be according to processor 105 and storage control 104 instruction, be sent to memory 103 and stored, or send and be sent to outside to RF circuit 112 and set It is standby.

Exterior I/O port 111, which for terminal system 100 is physically entered module with other external equipments or system surfaces and provides, to be connect Mouthful.Surface physics input module can be key, keyboard, turntable etc., such as volume button, power button, return key and Camera button.Interface provided by exterior I/O port 111 may also include universal serial bus (USB) interface (may include USB, Mini-USB, Micro-USB, USB Type-C etc.), thunder and lightning (Thunderbolt) interface, earphone microphone interface, transmission of video connect Mouthful (such as high-definition multimedia HDMI interface, mobile high definition connect MHL interface), external storage interface (such as external storage Card SD card interface), user identity module card (SIM card) interface etc..

Sensor module 118 can have one or more sensors or sensor array, including but not limited to: 1, position passes Sensor, such as GPS (GPS) sensor, big-dipper satellite alignment sensor or lattice Luo Luosi (GLONASS) are defended Star positioning system sensor is used for detection device current geographic position；2, acceleration transducer, gravity sensor, gyroscope are used In detection device motion state and auxiliary positioning；3, light sensor, for detecting external ambient light；4, range sensor is used In the distance of detection exterior object homologous ray；5, pressure sensor, the pressure condition for detection system contact；6, temperature with it is wet Sensor is spent, for detecting environment temperature and humidity.Sensor module 118 can also be regarded using needs, add any other kind The sensor or sensor array of class and quantity.

In some embodiment of the invention, the various components of terminal system 100 can be called by instruction by processor 105, Execute image pickup method of the invention.Processor 105 executes program required for image pickup method of the invention and is carried out by memory 103 Storage.

It is the introduction to the terminal system of application image pickup method above, next, image pickup method will be introduced.It please join Fig. 2 is examined, is the flow chart of the image pickup method provided in this specification embodiment, as shown in Fig. 2, this approach includes the following steps.

Step S11: when carrying out preview to target scene, first camera is obtained respectively to include in preview image N number of image-region in each region be best acquisition parameters value of region-of-interest when being shot, amount to and obtain N group most preferably Acquisition parameters value, N are the integer greater than 1；

Step S12: according to reflecting for the acquisition parameters value of preset first camera and the acquisition parameters value of second camera Relationship is penetrated, determines the N group optimum target acquisition parameters of the second camera corresponding with the best acquisition parameters value of the N group Value；

Step S13: it according to the current region-of-interest of the preview image, is determined in the best acquisition parameters value of the N group Best acquisition parameters value described in one group corresponding with the current region-of-interest out is the first shooting parameter value, and in the N Group optimum target acquisition parameters value in determine it is one group corresponding with the current region-of-interest described in optimum target acquisition parameters Value second shoots parameter value, so that first camera is using the first shooting parameter value and the second camera The target scene is shot using the second shooting parameter value.

It should be noted that the electronic equipment in this specification embodiment can be smart phone, tablet computer, camera Or other equipment with camera, it is not limited here.It is taken the photograph on electronic equipment at least provided with the first camera and second As head, it is also provided with the even more camera of third camera.Equally can using method provided in this embodiment come The acquisition parameters of third camera are set.The type of each camera can be configured according to actual needs, for example, first Camera and second camera are colored (RGB) camera；Or first camera be colored (RGB) camera, second takes the photograph As head is black and white (MONO) camera.The quantity and type of camera on picture pick-up device are not limited herein.

In the following, being mentioned so that electronic equipment is provided with the first camera and second camera as an example to this specification embodiment The image pickup method of confession is illustrated.

Firstly, in step s 11, electronic equipment is in the shooting preview state to target scene, target scene be can be User thinks any scene of shooting.Since the first camera will calculate acquisition parameters according to different zones in the embodiment of the present invention, So to avoid user from browsing preview image, the preview image shown under shooting preview state is the collected mesh of second camera Mark scene image.

It should be understood that due to the position of the first camera and the position of second camera be not it is identical, When carrying out Image Acquisition to identical target scene, the first camera acquired image information and second camera are collected Image information can have offset to a certain extent.Under normal conditions, due between the first camera and second camera away from From fairly close, the offset of generation can be ignored, that is, be approximately considered the image information and second of the first camera acquisition The image information of camera acquisition is identical.In addition, passing through meter when synthesizing the image of the first camera and second camera shooting Calculate influence of the visual field difference to composograph that can then eliminate between two cameras.

In addition, for the complete phase of image information for keeping the image information of the first camera acquisition to acquire with second camera Together, image registration can be carried out.For example, when the image of second camera acquisition is preview image, it can be by the first camera Acquired image is registrated according to preview image, and the image after making registration is aligned with preview image.

In this specification embodiment, in order to realize when selecting or switching region-of-interest, each camera is quickly adjusted Acquisition parameters value can determine each camera corresponding to each image-region in present preview image in previews Best acquisition parameters value.In this way, can be set each camera to and the region-of-interest institute after region-of-interest has been determined The corresponding best acquisition parameters value of image-region.

Specifically, preview image includes N number of image-region.The division of N number of image-region can come according to actual needs It is configured, the mode of two kinds of image-regions division is described below.

First way carries out image recognition to preview image, identifies N number of object in preview image, this is N number of right As region is as N number of image-region.For example, target scene is park scenery, and park scenery includes multiple objects, such as Trees, lake water, tourist etc..Correspondingly, preview image is collected park scene image, also include in preview image trees, Lake water, tourist etc..Feature identification is carried out to the picture material of preview image, each object is identified, that is, identifies trees, lake The objects such as water, tourist, and each object region is split, the image-region after being divided.

The second way carries out image segmentation to preview image according to default partitioning scheme, obtains N number of image-region.In advance If partitioning scheme can be configured according to actual needs, in one embodiment, presetting partitioning scheme is by preview image point It is segmented into the identical rectangular area of multiple sizes, the corresponding image-region in each rectangular area.Certainly, partitioning scheme is preset also It can be other partitioning schemes, such as preview image divided etc. according to pre-set dimension, predeterminable area shape.

It should be understood that the concern area for each image-region in preview image, possible as user's shooting Domain.For example, still by taking target scene is park scenery as an example, when user wants emphasis shooting trees, then the image where trees Region is region-of-interest, and when wanting emphasis shooting tourist with user, then the image-region where tourist is region-of-interest.Pre- In the case that image of looking at is constant, region-of-interest is different, and the acquisition parameters value of each camera can also correspond to adjustment, so as to obtain It shoots in image, the clarity of image-region corresponding to region-of-interest meets preset condition, and preset condition can be according to reality It needs to set, for example, preset condition is that clarity is greater than threshold value.

By can first determine using each image-region in N number of image-region as region-of-interest in step S11 When, the best acquisition parameters value of the first camera.In the specific implementation process, step S11 can be accomplished by the following way:

The range of parameter values of acquisition parameters based on first camera, to the parameter values of the acquisition parameters according to pre- If mode carries out parameter adjustment, and first camera collects the M width of the target scene during the adjustment that gets parms Image, each image in the M width image include N number of image-region, and M is the integer greater than 1；According to described every The clarity for the N number of image-region for including in width image is determined using each region in N number of image-region as institute State best acquisition parameters value when region-of-interest is shot.

Specifically, the first camera shoots target scene on backstage when second camera carries out preview, shooting Process is realized by constantly adjusting the acquisition parameters value of the first camera.It should be understood that the shooting of the first camera Parameter setting has range of parameter values, and parameter area is parameter minimum value to the range between parameter maximum value.Carry out parameter adjustment Predetermined manner can be configured according to actual needs, carried out since parameter minimum value for example, predetermined manner can be Adjustment, can also be adjusted since parameter maximum value.

By taking the adjustment since parameter minimum value as an example, initial acquisition parameters value is parameter minimum value, final acquisition parameters value Parameter value is incrementally increased since parameter minimum value for parameter maximum value, is until acquisition parameters value is adjusted to parameter maximum value Only.In one embodiment, parameter adjustment can be adjusted according to preset step-length, and preset step-length can be according to actual needs It is set.As soon as obtaining piece image according to the every adjustment time acquisition parameters value of adjusting step by the first camera, obtaining altogether M width image.

By taking the adjustment since parameter maximum value as an example, initial acquisition parameters value is parameter maximum value, final acquisition parameters value Parameter value is gradually reduced since parameter maximum value for parameter minimum value, is until acquisition parameters value is adjusted to parameter minimum value Only.In one embodiment, parameter adjustment can be adjusted according to preset step-length, and preset step-length can be according to actual needs It is set.As soon as obtaining piece image according to the every adjustment time acquisition parameters value of adjusting step by the first camera, obtaining altogether M width image.

For obtained M width image, since M width image is all that the first camera shoots same target scene Obtained image, therefore, the picture material of M width image is substantially identical.For each image, all include and preview The picture material of the identical N number of image-region of image, N number of image-region in each image is also nearly identical.Although M width The picture material of image is identical, but since the corresponding acquisition parameters value of each image is different, the display effect of M width image is not Together, for example, for the identical image region in M width image, clarity of the identical image region in different images, brightness Deng possible different.Still by taking target scene is park scenery as an example, the image of M width park scenery is obtained through the above way, for M For M tourist's image-region in width image, the clarity of this M tourist's image-region, brightness may be all different.

Further, it for region-of-interest, needs to meet clarity of the region-of-interest in shooting image default Therefore condition in this specification embodiment, can be come true according to the clarity for the N number of image-region for including in M width image Determine region-of-interest, and further determines that acquisition parameters corresponding with region-of-interest.

In one embodiment, determine that the corresponding best acquisition parameters value of each region-of-interest can be real in the following manner It is existing: for each region in N number of image-region, the clarity of the image-region in the M width image；By the figure As the corresponding acquisition parameters value of the highest image of the clarity in region, as being the best of the region-of-interest with the image-region Acquisition parameters value.

In this specification embodiment, using some image-region in preview image as when region-of-interest, finally shooting To image in, be to be subject to the clarity of region-of-interest.The clarity of the region-of-interest needs to meet preset condition, at this It, can be using the highest acquisition parameters of region-of-interest clarity that the first camera can take as the concern area in embodiment The best acquisition parameters value in domain.Specifically, after the first camera obtains M width image, each image in M width image is compared The clarity in region.Still by taking park scenery above as an example, preview image includes 3 image-regions, respectively tourist's image district Domain, lake water image-region, Tree image region.For tourist's image-region, each image in M width image is obtained In tourist's image-region clarity, amount to and obtain M clarity, determined in M clarity highest clarity it is right The image answered, then the width image is using tourist's image-region as the collected best figure of the first camera when region-of-interest Picture, the corresponding acquisition parameters value of the width image be region-of-interest be tourist's image-region when, the best shooting of the first camera Parameter value.Similarly, can obtain region-of-interest be lake water image-region and Tree image region when, the first camera it is best Acquisition parameters value.

By the above-mentioned means, just having obtained when the first camera is shot using each image-region as region-of-interest most Good acquisition parameters value.

In this specification embodiment, the target acquisition parameters of the acquisition parameters of the first camera and the second camera It include Focusing parameter and/or exposure parameter.Wherein, Focusing parameter can be indicated by the location parameter of motor of camera, be exposed Optical parameter can be indicated by exposure time.Specifically, when the acquisition parameters of the first camera are Focusing parameter, the second camera shooting The acquisition parameters of head also correspond to Focusing parameter；When the acquisition parameters of the first camera are exposure parameter, second camera Acquisition parameters also correspond to exposure parameter；When the acquisition parameters of the first camera are Focusing parameter and exposure parameter, second is taken the photograph As the acquisition parameters of head also correspond to Focusing parameter and exposure parameter.Certainly, acquisition parameters can also be other parameters, here Without limitation.

In the following, being with each image-region to the first camera so that acquisition parameters are Focusing parameter and exposure parameter as an example The acquisition process of best acquisition parameters value when region-of-interest is shot is illustrated.It should be understood that best Focusing parameter Value and optimum exposure parameter value can be obtained by two individual processes, can also be obtained simultaneously in same process.

For the acquisition process of best Focusing parameter value, when carrying out preview to target scene, according to the first camera The Focusing parameter of first camera is gradually adjusted to maximum Focusing parameter by minimum Focusing parameter value by the range of Focusing parameter value Value (or being gradually adjusted to minimum Focusing parameter value by maximum Focusing parameter value) obtains the first camera by nearly coke to remote coke During adjustment (or during the adjustment by remote coke to nearly coke), the acquired image under each Focusing parameter value obtains M altogether Width image.Further, by comparing the clarity for the N number of image-region for including in each image in M width image, determination will be every When a image-region is as region-of-interest, the best Focusing parameter value of the first camera amounts to and obtains the best Focusing parameter of N group Value, specific best Focusing parameter value determination process can refer to above description, just repeat no more here.

For the acquisition process of optimum exposure parameter value, when carrying out preview to target scene, according to the first camera The exposure parameter of first camera is gradually adjusted to maximum exposure parameter by minimum exposure parameter value by the range of exposure parameter values Value (or being gradually adjusted to minimum exposure parameter value by maximum exposure parameter value) obtains the first camera by under-exposure to overexposure In photoreduction process (or by overexposure to during under-exposure), the acquired image under each exposure parameter values obtains M width figure altogether Picture.Further, it by comparing the clarity for the N number of image-region for including in each image in M width image, determines each figure When as region as region-of-interest, the optimum exposure parameter value of the first camera amounts to and obtains N group optimum exposure parameter value, tool The exposure parameter values determination process of body can refer to above description, just repeat no more here.

Further, it is being determined that the N group that the first camera is shot using each image-region as region-of-interest is best After acquisition parameters value, the N that second camera is shot using each image-region as region-of-interest is determined by step S12 Group optimum target acquisition parameters value.In this specification embodiment, the acquisition parameters value of preset first camera and the second camera shooting The mapping relations of the acquisition parameters value of head can be mapping table, mapping relations curve or other kinds of mapping relations. Mapping relations can obtain in several ways, for example, provided by empirical value acquisition mapping relations, by camera producer Camera parameter calculates estimation and obtains mapping relations, or test obtains mapping relations, and this is not restricted.

Below using acquisition parameters as Focusing parameter and exposure parameter, reflected in laboratory environments by test mode acquisition It penetrates for relationship, to introduce the acquisition process of mapping relations.It should be understood that the mapping relations and exposure ginseng of Focusing parameter value The mapping relations of numerical value can be obtained by two processes or same process.

When obtaining the mapping relations of Focusing parameter value, can obtain in the following manner: the bat based on target object Act as regent the adjusting range set, and is gradually adjusted to the position of the target object, determines that the first camera shooting is each The Focusing parameter value of the target object at position, and determine that the second camera shoots the mesh at each position Mark the Focusing parameter value of object；According to the Focusing parameter value and described second of first camera at each position The Focusing parameter value of camera, establishes the mapping relations.

It specifically, can only be to one since the motor moving range of the first camera and second camera is limited The reference object determined in range carries out focusing process, for example, the motor moving range of the first camera and second camera can Focusing process is carried out with the reference object between the camera 5cm-10m that adjusts the distance.

In the acquisition process of the mapping relations of Focusing parameter value, camera can be pushed from the image of shooting distance 5cm Gradually it is moved to the image apart from camera 10m.Target object can be moved according to preset moving step length, for example, moving Dynamic step-length is 5cm, then the position of reference object is followed successively by apart from camera 5cm, 10cm, 15cm etc., and so on.It is testing In the process, target object can be remained in the center position of preview image.

At each position of target object, determine that the first camera is carried out by region-of-interest of target object region The best Focusing parameter value of shooting, and determine that second camera is shot most using region described in target object as region-of-interest Good Focusing parameter value, using the two best Focusing parameter values as a mapping relations.Multiple positions pair based on target object The mapping relations answered generate mapping relations.

For example, determining the first camera with target object for concern when the position of target object is apart from camera 5cm The best Focusing parameter value that shoots when region is a1, and while determining second camera using target object as region-of-interest shoots Best Focusing parameter value is b1.When the position of target object is apart from camera 10cm, determine the first camera with target pair As being a2 for the best Focusing parameter value that shoots when region-of-interest, and determine second camera using target object as region-of-interest When the best Focusing parameter value that shoots be b2.Further, the best Focusing parameter value a1 of the first camera and second is imaged The best Focusing parameter value b1 of head is established as first mapping relations, by the best Focusing parameter value a2 and second of the first camera The best Focusing parameter value b2 of camera is established as Article 2 mapping relations.Comprehensive each mapping relations generate reflecting for Focusing parameter Penetrate relationship.

When obtaining the mapping relations of exposure parameter values, it can obtain in the following manner: gradually adjust described first The exposure parameter values of the exposure parameter values of camera and the second camera, so that first camera is collected more The brightness of image of width image is identical as the brightness of image of the collected multiple image of the second camera；According to it is each identical The exposure parameter values of corresponding first camera collection image of brightness of image and the second camera acquire image Exposure parameter values establish the mapping relations.

In the acquisition process of exposure parameter values mapping relations, target object can be placed on to the first camera and Fixation position in two camera visual fields, and holding target object is in the center position of preview image.By the first camera Exposure parameter maximum exposure parameter value is gradually adjusted to by minimum exposure parameter value (or by maximum exposure parameter value Gradually it is adjusted to minimum exposure parameter value), obtain target object region in the image shot under each exposure parameter values Brightness.Then it according to the brightness of target object region in each image of the first camera shooting, determines using second When camera shoots target object, the exposure parameter values of same brightness are obtained.

For example, when the exposure parameter values of the first camera are d1, target object is shot, obtains shooting figure Picture, the image region brightness in the image where target object are L1, then adjust the exposure parameter values of second camera, make the In the image that two cameras are shot under the exposure parameter values, the corresponding image region brightness of target object is also L1, and is recorded The exposure parameter values e1 of second camera at this time.Next, can be according to preset step-length by the exposure parameter values of the first camera It is adjusted to d2, obtains shooting image, the corresponding image region brightness of target object is L2 in the image, corresponding the second camera shooting of adjustment The exposure parameter values of head, in the image for shooting second camera under the exposure parameter, the corresponding image-region of target object Brightness is also L2, and records the exposure parameter values e2 of second camera at this time.Further, by the exposure parameter of the first camera The exposure parameter values e1 of value d1 and second camera is established as first mapping relations, by the exposure parameter values d2 of the first camera Article 2 mapping relations are established as with the exposure parameter values e2 of second camera.Comprehensive each mapping relations generate exposure parameter Mapping relations.

In this specification embodiment, by experimental test procedures obtain mapping relations, compared to pass through empirical value or calculating Estimation obtains mapping relations, and obtained data are more acurrate, more meet the actual conditions of each camera, can improve acquisition of tabling look-up The accuracy of the acquisition parameters of second camera, to improve the quality of subsequent shooting picture.In addition, obtaining mapping relations Afterwards, it can be stored in electronic equipment, to be closed by inquiry mapping according to the best acquisition parameters value of the first camera System quickly determines the optimum target acquisition parameters value of second camera.

Through above step, in preview image, so that it may obtain to be made in the preview image with each image-region When for region-of-interest, the best acquisition parameters value of corresponding first camera of each region-of-interest and second camera it is best Target acquisition parameters value.

It should be understood that the best acquisition parameters value of the first camera corresponding with each region-of-interest and the second camera shooting The optimum target acquisition parameters value of head also may be constructed a corresponding relationship.In the corresponding relationship, there are the corresponding passes of N group System, wherein every group of sub- corresponding relationship is to take the photograph with the image-region corresponding first in N number of image-region in preview image As the best acquisition parameters value of head and the best acquisition parameters value of second camera.The preview image is paid close attention in user Regional choice, or when switching region-of-interest, can quickly be determined by searching for the corresponding relationship corresponding with region-of-interest The first camera acquisition parameters value and second camera acquisition parameters value, without every time when determining region-of-interest Recalculate the acquisition parameters value of camera.

Further, in step s 13, the current region-of-interest in preview image be second camera according to target scene from The determining image-region of dynamic focusing, current region-of-interest are also possible to the figure of display screen selection of the user by click electronic equipment As region.After current region-of-interest has been determined, which of corresponding N number of image-region of current region-of-interest is further determined that Image-region.According to above-mentioned corresponding relationship, determine the first of the first camera corresponding with the image-region shoot parameter value with And the second target acquisition parameters value of second camera.Alternatively, first determined in the N group acquisition parameters value of the first camera and The image-region corresponding first shoots parameter value, the acquisition parameters and second camera further according to preset first camera The mapping relations of acquisition parameters inquire the second shooting parameter value of second camera corresponding with the first shooting parameter value.It will First camera is set as the first shooting parameter value, sets the second shooting parameter value for second camera, to preview image into Row is shot, and the clarity of current region-of-interest can satisfy preset condition in the shooting image obtained in this way.

In addition, it is necessary to explanation, when preview image changes, such as customer mobile terminal makes collected preview Picture material, which changes in the corresponding scene brightness mutation of perhaps preview image or preview image, there is mobile object etc., just Need to re-execute aforementioned S101~S103 to determine the corresponding each camera shooting of each image-region in the preview image after variation The acquisition parameters value of head.

Scheme in this specification embodiment, when second camera is in the previews for carrying out target scene, by the One camera goes out the corresponding best acquisition parameters value of each image-region in present preview image in hind computation.It thus can be with Quickly the region-of-interest in present preview image is selected or handover operation responds, without after redefining region-of-interest The calculating for carrying out acquisition parameters, has saved the adjustment time of each camera on the basis of guaranteeing shooting effect.Further, Scheme in this specification embodiment can quickly adjust acquisition parameters value, be not in the prior art because when long therefore Between the jump of the clarity, exposure of preview interface that occurs of parameter adjustment, and then improve user experience.

Based on the inventive concept with image pickup method in previous embodiment, second aspect of the present invention also provides a kind of shooting dress It sets, is applied to electronic equipment, the electronic equipment includes the first camera and second camera, as shown in figure 3, the device packet It includes:

First obtains module 31, for when carrying out preview to target scene, obtaining first camera respectively with pre- Looking at each region in the N number of image-region for including in image is acquisition parameters value when region-of-interest is shot, total to obtain The best acquisition parameters value of N group is obtained, N is the integer greater than 1；

Second obtains module 32, for according to the acquisition parameters value of preset first camera and the shooting of second camera The mapping relations of parameter value determine the N group optimum target of the second camera corresponding with the best acquisition parameters value of the N group Acquisition parameters value；

Processing module 33, for the current region-of-interest according to the preview image, in the best acquisition parameters value of the N group In determine it is one group corresponding with the current region-of-interest described in best acquisition parameters value be the first shooting parameter value, Yi Ji Determined in the N group optimum target acquisition parameters value it is one group corresponding with the current region-of-interest described in optimum target shooting Parameter value is the second shooting parameter value, so that first camera is using the first shooting parameter value and described second Camera shoots the target scene using the second shooting parameter value.

As a kind of optional embodiment, the first acquisition module 31 is specifically used for:

As a kind of optional embodiment, the acquisition parameters of first camera are Focusing parameter and/or exposure parameter, The target acquisition parameters of the second camera also correspond to Focusing parameter and/or exposure parameter.

As a kind of optional embodiment, in the acquisition parameters of first camera and the mesh of the second camera When mark acquisition parameters are Focusing parameter, the acquisition parameters value of preset first camera and the shooting of second camera are joined The mapping relations of numerical value obtain in the following manner:

As a kind of optional embodiment, in the acquisition parameters of first camera and the mesh of the second camera When mark acquisition parameters are exposure parameter, the acquisition parameters value of preset first camera and the shooting of second camera are joined The mapping relations of numerical value obtain in the following manner:

About above-mentioned apparatus, wherein the concrete function of modules is in image pickup method provided in an embodiment of the present invention It is described in detail in embodiment, no detailed explanation will be given here.

Based on inventive concept same as image pickup method in previous embodiment, third embodiment of the invention additionally provides one kind Terminal system, referring to Figure 1, the device of the embodiment include: processor 105, memory 103 and are stored in the memory In and the computer program that can run on the processor, such as the corresponding program of image pickup method in first embodiment.

Illustratively, the computer program can be divided into one or more module/units, one or more A module/unit is stored in the memory, and is executed by the processor, to complete the present invention.It is one or more A module/unit can be the series of computation machine program instruction section that can complete specific function, and the instruction segment is for describing institute State implementation procedure of the computer program in the computer installation.

The introduction of terminal system memory, processor and other structures is please referred to above, is just not repeated here It repeats.

Further, processor 105 included by the device is with the following functions:

When carrying out preview to target scene, first camera N number of figure to include in preview image respectively is obtained Acquisition parameters value when being shot as each region in region for region-of-interest amounts to and obtains the best acquisition parameters value of N group, N is the integer greater than 1；

Further, processor 105 included by the device is also with the following functions:

It is focusing ginseng in the acquisition parameters of first camera and the target acquisition parameters of the second camera When number, the adjusting range of the camera site based on target object is gradually adjusted the position of the target object, determines institute The Focusing parameter value for the target object that the first camera is shot at each position is stated, and determines that the second camera is clapped Take the photograph the Focusing parameter value of the target object at each position；

It is exposure ginseng in the acquisition parameters of first camera and the target acquisition parameters of the second camera When number, the exposure parameter values of first camera and the exposure parameter values of the second camera are gradually adjusted, so that institute State the brightness of image of the collected multiple image of the first camera and the image of the collected multiple image of the second camera Brightness is identical；

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.

The present invention is reference according to the method for this specification embodiment, the stream of equipment (system) and computer program product Journey figure and/or block diagram describe.It should be understood that can be realized by computer program instructions each in flowchart and/or the block diagram The combination of process and/or box in process and/or box and flowchart and/or the block diagram.It can provide these computer journeys Sequence instruct to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor with A machine is generated, so that the instruction generation executed by computer or the processor of other programmable data processing devices is used for Realize the dress for the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram It sets.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of image pickup method, it is applied to electronic equipment, which is characterized in that the electronic equipment includes the first camera and the Two cameras, which comprises

When carrying out preview to target scene, first camera N number of image district to include in preview image respectively is obtained Each region in domain is best acquisition parameters value when region-of-interest is shot, and amounts to and obtains the best acquisition parameters value of N group, N is the integer greater than 1；

According to the mapping relations of the acquisition parameters value of preset first camera and the acquisition parameters value of second camera, determine with The N group optimum target acquisition parameters value of the corresponding second camera of the best acquisition parameters value of N group；

According to the current region-of-interest of the preview image, determined in the best acquisition parameters value of the N group with it is described current Best acquisition parameters value described in region-of-interest is one group corresponding is the first shooting parameter value, and is clapped in the N group optimum target Take the photograph in parameter value determine it is one group corresponding with the current region-of-interest described in optimum target acquisition parameters value be second shooting Parameter value, so that first camera is using the first shooting parameter value and the second camera using described the Two acquisition parameters values shoot the target scene.

2. the method according to claim 1, wherein described when carrying out preview to target scene, described in acquisition When first camera is shot using each region in the N number of image-region for including in preview image as region-of-interest respectively Best acquisition parameters value, comprising:

The range of parameter values of acquisition parameters based on first camera, to the parameter values of the acquisition parameters according to default side Formula carries out parameter adjustment, and first camera collects the M width image of the target scene during the adjustment that gets parms, Each image in the M width image includes N number of image-region, and M is the integer greater than 1；

According to the clarity for the N number of image-region for including in each image, determination will be in N number of image-region Best acquisition parameters value when each region is shot as the region-of-interest.

3. according to the method described in claim 2, it is characterized in that, described described N number of according to include in each image The clarity of image-region, when determination is shot in each region in N number of image-region as the region-of-interest Best acquisition parameters value, comprising:

For each image-region in N number of image-region, the clarity of the image-region in the M width image；

By the corresponding acquisition parameters value of the highest image of the clarity of the image-region, as using the image-region as the pass Infuse the best acquisition parameters value in region.

4. method according to claim 1-3, which is characterized in that the acquisition parameters of first camera are pair Burnt parameter and/or exposure parameter, the target acquisition parameters of the second camera also correspond to Focusing parameter and/or exposure ginseng Number.

5. according to the method described in claim 4, it is characterized in that, in the acquisition parameters of first camera and described When the target acquisition parameters of two cameras are the Focusing parameter, the acquisition parameters value of preset first camera and the The mapping relations of the acquisition parameters value of two cameras obtain in the following manner:

The adjusting range of camera site based on target object is gradually adjusted the position of the target object, determines institute The Focusing parameter value for the target object that the first camera is shot at each position is stated, and determines that the second camera is clapped Take the photograph the Focusing parameter value of the target object at each position；

Joined according to the focusing of the Focusing parameter value of first camera at each position and the second camera Numerical value establishes the mapping relations.

6. according to the method described in claim 4, it is characterized in that, in the acquisition parameters of first camera and described When the target acquisition parameters of two cameras are the exposure parameter, the acquisition parameters value of preset first camera and the The mapping relations of the acquisition parameters value of two cameras obtain in the following manner:

The exposure parameter values of first camera and the exposure parameter values of the second camera are gradually adjusted, so that described The brightness of image of the collected multiple image of first camera and the image of the collected multiple image of the second camera are bright It spends identical；

According to the exposure parameter values of first camera collection image corresponding with each identical image brightness and described The exposure parameter values of two camera collection images establish the mapping relations.

7. a kind of filming apparatus, it is applied to electronic equipment, which is characterized in that the electronic equipment includes the first camera and the Two cameras, described device include:

First obtains module, for when carrying out preview to target scene, obtaining first camera respectively with preview image In include N number of image-region in each region be best acquisition parameters value of region-of-interest when being shot, amount to and obtain N The best acquisition parameters value of group, N are the integer greater than 1；

Second obtains module, for according to the acquisition parameters value of preset first camera and the acquisition parameters value of second camera Mapping relations, determine that the N group optimum target shooting of corresponding with the best acquisition parameters value of the N group second camera is joined Numerical value；

Processing module determines in the best acquisition parameters value of the N group for the current region-of-interest according to the preview image Best acquisition parameters value described in one group corresponding with the current region-of-interest out is the first shooting parameter value, and in the N Group optimum target acquisition parameters value in determine it is one group corresponding with the current region-of-interest described in optimum target acquisition parameters Value is the second shooting parameter value, so that first camera is using the first shooting parameter value and second camera shooting Head shoots the target scene using the second shooting parameter value.

8. device according to claim 7, which is characterized in that described first obtains module, is used for:

9. a kind of electronic equipment, which is characterized in that including processor and memory:

The memory is used to store the program that perform claim requires any one of 1 to 6 the method；

The processor is configured to for executing the program stored in the memory.

10. a kind of computer storage medium, which is characterized in that be stored thereon with computer program, which is executed by processor The step of Shi Shixian any one of claims 1 to 6 the method.