CN106534696A - Focusing apparatus and method - Google Patents
Focusing apparatus and method Download PDFInfo
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- CN106534696A CN106534696A CN201611072480.8A CN201611072480A CN106534696A CN 106534696 A CN106534696 A CN 106534696A CN 201611072480 A CN201611072480 A CN 201611072480A CN 106534696 A CN106534696 A CN 106534696A
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- photographic head
- camera
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- focusing parameter
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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
- H04N23/67—Focus control based on electronic image sensor signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
- H04N23/13—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with multiple sensors
- H04N23/16—Optical arrangements associated therewith, e.g. for beam-splitting or for colour correction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/45—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- Engineering & Computer Science (AREA)
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- Human Computer Interaction (AREA)
- Studio Devices (AREA)
Abstract
The embodiment of the invention discloses a focusing apparatus and method. The focusing apparatus comprises a first acquisition module for acquiring the shooting parameters of a first camera, a second acquisition module for acquiring the shooting parameters of a second camera if the shooting parameters satisfy preset conditions, a determination module for determining the focusing parameters of the first camera according to the focusing parameters of the second camera, and a third control module for controlling the first camera to focus on an object to be shot according to the focusing parameters of the first camera.
Description
Technical field
The present invention relates to camera technology field, more particularly to a kind of focusing mechanism and method.
Background technology
In recent years, as the mobile terminals such as the progress of science and technology, the smart mobile phone with shoot function, panel computer are obtained
Extensive application, by installing camera applications in the terminal, to meet the demand shot whenever and wherever possible by people.Now
The camera function of mobile terminal is stronger and stronger, but it is single with regard to photographic head itself, which has reached 7 millimeters of hardware physics
The limit, gives birth to thus with the mobile terminal application of dual camera.Take the photograph for colour for one in the dual camera of current mobile terminal
As head, one is black and white photographic head.There is photodiode (Photo Diode, PD) right in the image sensor of colour imagery shot
Burnt speed is fast, therefore in prior art, during dual camera is focused, colour imagery shot enters to object to be captured first
Then Focusing parameter is notified black and white photographic head by row focusing, and it is right that black and white photographic head is carried out according to the Focusing parameter of colour imagery shot
Jiao, to realize that the focusing area of two photographic head is identical.But dark or colour imagery shot PD information not
It is when credible, easily out of focus.
The content of the invention
In view of this, the embodiment of the present invention is expected to provide a kind of focusing mechanism and method, solve in dark or
When the PD information of colour imagery shot is insincere, easily problem out of focus, realizes the PD in dark or colour imagery shot
When information is insincere, the purpose that accurately can be focused.For reaching above-mentioned purpose, the technical scheme is that what is be achieved in that：
In a first aspect, the embodiment of the present invention provides a kind of focusing mechanism, described device includes：
First acquisition module, for obtaining the acquisition parameters of the first photographic head；
First control module, if meeting pre-conditioned for the acquisition parameters, control second camera treats bat
Take the photograph object focusing；
Second acquisition module, for obtaining the Focusing parameter of second camera；
Determining module, for determining the Focusing parameter of the first photographic head according to the Focusing parameter of the second camera；
3rd control module, treats bat for controlling first photographic head according to the Focusing parameter of first photographic head
Take the photograph object to be focused.
Second aspect, the embodiment of the present invention provide a kind of focusing method, and methods described includes：
Obtain the acquisition parameters of the first photographic head；
If the acquisition parameters meet pre-conditioned, control second camera is focused to object to be shot；
Obtain the Focusing parameter of second camera；
The Focusing parameter of the first photographic head is determined according to the Focusing parameter of the second camera；
Control first photographic head to focus object to be shot according to the Focusing parameter of first photographic head.
Focusing mechanism and method that embodiments of the invention are provided, by obtaining the acquisition parameters of the first photographic head, come
Judge whether the acquisition parameters meet pre-conditioned, if the acquisition parameters meet pre-conditioned, control second is imaged
Head is focused to object to be shot and is obtained the Focusing parameter of second camera, the then focusing according to the second camera
The Focusing parameter of the first photographic head of parameter determination, further according to the first photographic head Focusing parameter first photographic head is carried out it is right
It is burnt.Wherein, first photographic head is the colour imagery shot for having optical filter, and the second camera is the black and white for not having optical filter
Photographic head.So, when the acquisition parameters of the first photographic head meet some requirements, thing to be captured is carried out using second camera
Body is focused, and determines the Focusing parameter of the first photographic head according to the Focusing parameter of second camera, solve light compared with
When the PD information of dark or colour imagery shot is insincere, easily problem out of focus, realizes in dark or colored shooting
When the PD information of head is insincere, the purpose that accurately can be focused.
Description of the drawings
Fig. 1 is the hardware architecture diagram of an optional mobile terminal for realizing each embodiment of the invention；
Fig. 2 is the communication system architecture schematic diagram that mobile terminal provided in an embodiment of the present invention is operable to；
Fig. 3 realizes schematic flow sheet for one focusing method of the embodiment of the present invention；
Fig. 4 realizes schematic flow sheet for two focusing method of the embodiment of the present invention；
Fig. 5 is the schematic diagram that two mobile terminal of the embodiment of the present invention accurately cannot be focused；
Fig. 6 is that two mobile terminal of the embodiment of the present invention points out user to switch the schematic diagram of focusing mode；
Fig. 7 is the schematic diagram after the embodiment of the present invention two switches focusing mode；
Composition structural representations of the Fig. 8 for three focusing mechanism of the embodiment of the present invention；
Composition structural representations of the Fig. 9 for four focusing mechanism of the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.
The mobile terminal for realizing each embodiment of the invention is described referring now to accompanying drawing 1.In follow-up description, make
With the suffix of such as " module ", " part " or " unit " that are used for representing element only for being conducive to the explanation of the present invention, its
Body does not have specific meaning.Therefore, " module " mixedly can be used with " part ".
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
It is phone, smart phone, notebook computer, digit broadcasting receiver, personal digital assistant (PDA), panel computer (PAD), portable
The mobile terminal of formula multimedia player (PMP), guider etc. and the such as fixation of numeral TV, desk computer etc.
Terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for moving mesh
Element outside, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is that the hardware configuration of the mobile terminal for realizing each embodiment of the invention is illustrated.
Mobile terminal 1 00 can include wireless communication unit 110, audio/video (A/V) input block 120, user input
Unit 130, sensing unit 140, output unit 150, memorizer 160, interface unit 170, controller 180 and power subsystem 190
Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups for illustrating
Part, can alternatively implement more or less of component, will be discussed in more detail below the element of mobile terminal.
Wireless communication unit 110 generally includes one or more assemblies, and which allows mobile terminal 1 00 and wireless communication system
Or the radio communication between network.For example, wireless communication unit can include broadcasting reception module 111, mobile communication module
112nd, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.
Broadcasting reception module 111 receives broadcast singal and/or broadcast via broadcast channel from external broadcast management server
Relevant information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast management server can be generated and sent
The broadcast singal generated before the server or reception of broadcast singal and/or broadcast related information and/or broadcast related information
And send it to the server of terminal.Broadcast singal can include TV broadcast singals, radio signals, data broadcasting
Signal etc..And, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Pass information can also be provided via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 is receiving.Broadcast singal can be present in a variety of manners, and for example, which can be with the electronics of DMB (DMB)
The form of program guide (EPG), the electronic service guidebooks (ESG) of digital video broadcast-handheld (DVB-H) etc. and exist.Broadcast
Receiver module 111 can receive signal broadcast by using various types of broadcast systems.Especially, broadcasting reception module 111
Can be wide by using such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), digital video
Broadcast-hand-held (DVB-H), the Radio Data System of forward link media (MediaFLO@), received terrestrial digital broadcasting integrated service
Etc. (ISDB-T) digit broadcasting system receives digital broadcasting.Broadcasting reception module 111 may be constructed such that and be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via broadcasting reception module 111 receive broadcast singal and/
Or broadcast related information can be stored in memorizer 160 (or other types of storage medium).
Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal
And at least one of server and/or receive from it radio signal.Such radio signal can be logical including voice
Words signal, video calling signal or the various types of data for sending and/or receiving according to text and/or Multimedia Message.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by the module can including WLAN (WLAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting junction service.Some examples of short-range communication technology include indigo plant
Tooth TM, RF identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybee TM etc..
Location information module 115 is the module for checking or obtaining the positional information of mobile terminal.Location information module
115 typical case is GPS (global positioning system).According to current technology, GPS module 115 is calculated from three or more
The range information of satellite and correct time information and for the Information application triangulation for calculating, so as to according to longitude,
The three-dimensional current location information of latitude and highly accurately calculating.Currently, the method for calculating position and temporal information uses three
The error of satellite and the position that calculated by using an other satellite correction and temporal information.Additionally, GPS module
115 can be by Continuous plus current location information in real time come calculating speed information.
A/V input blocks 120 are used for receiving audio or video signal.A/V input blocks 120 can include 121 He of camera
Mike 122, the static images that 121 pairs, camera is obtained by image capture apparatus in Video Capture pattern or image capture mode
Or the view data of video is processed.Picture frame after process is may be displayed on display unit 151.Jing cameras 121 are processed
Carry out sending out during picture frame afterwards can be stored in memorizer 160 (or other storage mediums) or via wireless communication unit 110
Send, two or more cameras 121 can be provided according to the construction of mobile terminal.Mike 122 can be in telephone calling model, note
Sound (voice data) is received via mike 122 in record pattern, speech recognition mode etc. operational mode, and can be by this
The acoustic processing of sample is voice data.Audio frequency (voice) data after process can be converted in the case of telephone calling model
The form output of mobile communication base station can be sent to via mobile communication module 112.Mike 122 can be implemented various types of
Noise eliminate (or suppress) algorithm with eliminate noise that (or suppression) is produced during receiving and sending audio signal or
Interference.
User input unit 130 can generate key input data to control each of mobile terminal according to the order of user input
Plant operation.User input unit 130 allows the various types of information of user input, and can include keyboard, touch pad (example
Such as, detection is due to the sensitive component of the change of touched and caused resistance, pressure, electric capacity etc.) etc..Especially, when tactile
When template is superimposed upon on display unit 151 in the form of layer, touch screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 1 00, and (for example, mobile terminal 1 00 opens or closes shape
State), the position of mobile terminal 1 00, user is for the presence or absence of contact (that is, touch input), the mobile terminal of mobile terminal 1 00
100 orientation, the acceleration or deceleration movement of mobile terminal 1 00 and direction etc., and generate for controlling mobile terminal 1 00
The order of operation or signal.For example, when mobile terminal 1 00 is embodied as sliding-type mobile phone, sensing unit 140 can be sensed
The sliding-type phone is opened or is cut out.In addition, sensing unit 140 can detect power subsystem 190 whether provide electric power or
Whether person's interface unit 170 is coupled with external device (ED).
Interface unit 170 is connected the interface that can pass through as at least one external device (ED) with mobile terminal 1 00.For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, memory card port, the port for device of the connection with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 170 can be used for receiving input (for example, the number from external device (ED)
It is believed that breath, electric power etc.) and the input for receiving is transferred to into one or more elements in mobile terminal 1 00 or can be with
For the transmission data between mobile terminal and external device (ED).
Output unit 150 can include display module 151 and dio Output Modules 152 etc..
The information that display unit 151 is processed in may be displayed on mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia files
Download etc.) related user interface (UI) or graphic user interface (GUI).When mobile terminal 1 00 is in video calling pattern
Or during image capture mode, display unit 151 can show the image of capture and/or the image of reception, illustrate video or figure
UI or GUI of picture and correlation function etc..
Meanwhile, when the display module 151 and touch pad touch screen with formation superposed on one another in the form of layer, display module
151 can serve as input equipment and output device.Display module 151 can include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these display may be constructed such that transparence to allow user from outside viewing, and this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
The embodiment wanted, mobile terminal 1 00 can include two or more display units (or other display devices), for example, move
Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for detection and touch
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal in call signal reception pattern, call mode, logging mode,
It is when under the isotypes such as speech recognition mode, broadcast reception mode, that wireless communication unit 110 is received or in memorizer 160
The voice data transducing audio signal of middle storage and it is output as sound.And, dio Output Modules 152 can be provided and movement
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation that terminal 100 is performed.
Dio Output Modules 152 can include speaker, buzzer etc..
Memorizer 160 can store software program for the process and control operation performed by controller 180 etc., Huo Zheke
Temporarily to store the data that exported or will export.And, memorizer 160 can store with regard to when touch be applied to it is tactile
Touch vibration and the data of audio signal of the various modes exported during screen.
Memorizer 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, many
Media card, card-type memorizer (for example, SD or DX memorizeies etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read only memory (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can perform memorizer with by network connection
The network storage device cooperation of 160 store function.
The overall operation of the generally control mobile terminal of controller 180.For example, controller 180 is performed and voice call, data
The related control of communication, video calling etc. and process.In addition, controller 180 can be included for reproducing (or playback) many matchmakers
The multi-media module 181 of volume data, multi-media module 181 can be constructed in controller 180, or it is so structured that and control
Device 180 is separated.Controller 180 can be with execution pattern identifying processing, by the handwriting input for performing on the touchscreen or picture
Draw input and be identified as character or image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each unit
Appropriate electric power needed for part and component.
Various embodiments described herein can be with use such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implementing.For hardware is implemented, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), processor, controller, microcontroller, microprocessor, it is designed to perform function described herein
At least one in electronic unit implementing, in some cases, can be implemented in controller 180 by such embodiment.
For software is implemented, the embodiment of such as process or function can with allow to perform the single of at least one function or operation
Software module is implementing.Software code can be come by the software application (or program) write with any appropriate programming language
Implement, perform during software code can be stored in memorizer 160 and by controller 180.
So far, mobile terminal is described according to its function.Below, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc. is used as showing
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
As shown in Figure 1 mobile terminal 1 00 may be constructed such that using via frame or packet transmission data it is all if any
Line and wireless communication system and satellite-based communication system are operating.
The communication system that mobile terminal wherein of the invention is operable to is described referring now to Fig. 2.
Such communication system can use different air interfaces and/or physical layer.For example, used by communication system
Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system
System (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under
The description in face is related to cdma communication system, but such teaching is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 1s 00, multiple base stations (BS) 270, base station
Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN)
290 form interface.MSC280 is also structured to form interface with the BSC275 that can be couple to base station 270 via back haul link.
Back haul link can be constructed according to any one in some known interfaces, and the interface includes such as E1/T1, ATM, IP,
PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system can include multiple BSC275 as shown in Figure 2.
Each BS270 can service one or more subregions (or region), by multidirectional antenna or the day of sensing specific direction
Each subregion that line is covered is radially away from BS270.Or, each subregion can by for diversity reception two or more
Antenna is covered.Each BS270 may be constructed such that the multiple frequency distribution of support, and each frequency distribution with specific frequency spectrum
(for example, 1.25MHz, 5MHz etc.).
What subregion and frequency were distributed intersect can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver
System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly representing single
BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Or, each subregion of specific BS270 can be claimed
For multiple cellular stations.
As shown in Figure 2, broadcast singal is sent to broadcsting transmitter (BT) 295 mobile terminal operated in system
100.Broadcasting reception module 111 is arranged at mobile terminal 1 00 to receive the broadcast sent by BT295 as shown in Figure 1
Signal.In fig. 2 it is shown that several global positioning system (GPS) satellite 300.Satellite 300 helps position multiple mobile terminals
At least one of 100.
In fig. 2, multiple satellites 300 are depicted, it is understood that be, it is possible to use any number of satellite obtains useful
Location information.GPS module 115 is generally configured to coordinate to obtain the positioning wanted letter with satellite 300 as shown in Figure 1
Breath.Substitute GPS tracking techniques or outside GPS tracking techniques, it is possible to use can track the position of mobile terminal other
Technology.In addition, at least one gps satellite 300 can optionally or additionally process satellite dmb transmission.
Used as a typical operation of wireless communication system, BS270 receives the reverse link from various mobile terminal 1s 00
Signal.Mobile terminal 1 00 generally participates in call, information receiving and transmitting and other types of communication.Each of the reception of certain base station 270 is anti-
Processed in specific BS270 to link signal.The data of acquisition are forwarded to the BSC275 of correlation.BSC provides call
Resource allocation and the mobile management function of the coordination including the soft switching process between BS270.BSC275 is also by the number for receiving
According to MSC280 is routed to, which provides the extra route service for forming interface with PSTN290.Similarly, PSTN290 with
MSC280 forms interface, and MSC280 and BSC275 forms interface, and BSC275 correspondingly controls BS270 to believe forward link
Number it is sent to mobile terminal 1 00.
Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the invention is proposed.
Embodiment one
Embodiments of the invention provide a kind of focusing method, and Fig. 3 realizes flow process for one focusing method of the embodiment of the present invention
Schematic diagram, as shown in figure 3, the method is comprised the following steps：
Step 301, the acquisition parameters for obtaining the first photographic head.
Here, the acquisition parameters of the first photographic head of step 301 acquisition can be realized by focusing mechanism.The focusing is filled
It can be mobile terminal to put, and can preferably be intelligent mobile terminal, for example, can be the mobile phone (handss with touch controllable function
Machine), iPad, the terminal such as notebook.
First photographic head is the photographic head with optical filter, that is, daily described colour imagery shot.Colour imagery shot
In there is PD, the benefit focused using PD is exactly that speed of focusing is fast.
The acquisition parameters of the first photographic head are including but not limited to the international marks of ambient brightness value, time of exposure and light sensitivitys
Standardization organizes (International Organization for Standardization, ISO) value.Here, the first shooting
When the acquisition parameters of head can be by opening the camera applications of mobile terminal the image of automatic data collection obtain, or it is logical
Image for crossing the shooting of the first photographic head is obtained.
When the camera applications of mobile terminal start, the first photographic head meeting automatic data collection image, the view data bag of collection
Include：Time of exposure, white balance, sensitivity value etc..The mobile terminal can make user in the aobvious of mobile terminal based on view data
The image for collecting is seen in display screen.
View data of the mobile terminal according to first photographic head output, carries out statistical analysiss and obtains described first taking the photograph
Ambient brightness value as residing for head.In actual applications, it is possible to use automatic exposure algorithm (Auto Exposure, AE) basis
The view data of the first photographic head output, obtains the ambient brightness value residing for first photographic head.Time of exposure and light sensitivitys
ISO values can be directly obtained by the view data of first photographic head output.
Terminal is also referred to as terminal unit, is the equipment in network outermost in computer network, is mainly used in user profile
Input and result output etc..In early stage computer system, due to main frame it is expensive, a therefore main frame
Multiple terminals can be typically configured, these terminals itself do not possess computing capability, only undertake the work of information input output, computing
Complete with processing by main frame.In the personal computer epoch, personal computer can run the program of referred to as terminal emulator
To imitate the work of a terminal.As the development of mobile network, mobile terminal (such as mobile phone, PAD) etc. have obtained widely should
With.Now, terminal can not only undertake the work of input and output, while can also carry out certain computing and process, realize that part is
System function.
Mobile terminal refers to equipment that can be used in movement, broad sense say including mobile phone, notebook, panel computer,
POS, or even including vehicle-mounted computer.But, mobile phone or the intelligent handss with various application functions are referred in most cases
Machine and panel computer.As network and technology are towards the development in more and more broadband direction, Mobile Communication Industry will be moved towards
The real mobile message epoch.On the other hand, developing rapidly with integrated circuit technique, the disposal ability of mobile terminal is
Have powerful disposal ability, mobile terminal is changed into an integrated information processing platform from simple call instrument.This
Also broader development space is increased to mobile terminal.Mobile terminal is as simple communication equipment with Mobile Communication Development
The history of existing decades.Mobile intelligent terminal is almost changed into the crucial entrance of Internet service and main wound between a flash
New platform, new media, ecommerce and information service platform, Internet resources, mobile network resource and environmental interaction resource
Most important hinge, its operating system and processor chips even become the strategy system of current whole information and communication technology (ICT) industry
High point.Mobile intelligent terminal can be referred to as intelligent terminal,
If step 302, the acquisition parameters meet pre-conditioned, control second camera is to object to be shot pair
It is burnt；
Here, if step 302 acquisition parameters meet pre-conditioned, control second camera is to object to be shot
Focusing can be realized by focusing mechanism.No optical filter in second camera, that is, daily described black and white shooting
Head.But the light-inletting quantity of black and white photographic head is than larger, so can in shorter time of exposure or relatively low ISO, reach and
The same brightness of colour imagery shot.
In embodiments of the present invention, when the acquisition parameters of the first photographic head meet pre-conditioned, then control second is imaged
Head is focused to object to be shot.Here pre-conditioned can be ambient brightness value than relatively low.When external environment light compared with
It is when dark, when being focused to object to be shot using colour imagery shot, easily out of focus.As the light-inletting quantity of black and white photographic head is answered,
Now object to be shot is focused using black and white photographic head, good focus effects can be reached.
Step 303, the Focusing parameter for obtaining second camera.
Here, the Focusing parameter of second camera is obtained, institute can determine according to the Focusing parameter of the second camera
State the focal length adopted when second camera is focused, and focusing area.
Step S304, the Focusing parameter for determining the first photographic head according to the Focusing parameter of the second camera.
Here, by inquiry mapping table set in advance, determine the Focusing parameter pair of the second camera
The Focusing parameter of the first photographic head answered；Wherein, the mapping table is the Focusing parameter and second of first photographic head
The mapping table of the Focusing parameter of photographic head.The mapping table can be production firm's root when mobile terminal dispatches from the factory
Generate and store in mobile terminal according to the Focusing parameter of the first photographic head and the Focusing parameter of second camera.
Step S305, control first photographic head enter to object to be shot according to the Focusing parameter of first photographic head
Row focusing.
Here, step S305 focusing is carried out according to the Focusing parameter of first photographic head to first photographic head can be with
It is focusing mechanism realizing.The focusing mechanism can be mobile terminal.The mobile terminal is according to first photographic head
The focal length adopted during first camera focusing, and focusing area is determined in Focusing parameter, and then controls described first take the photograph
As head is focused on the focusing area according to the focal length.
In focusing method provided in an embodiment of the present invention, by obtaining the acquisition parameters of the first photographic head, institute is judged
State whether acquisition parameters meet pre-conditioned, if the acquisition parameters meet pre-conditioned, control second camera is treated
Shoot object to be focused and obtained the Focusing parameter of second camera, it is then true according to the Focusing parameter of the second camera
The Focusing parameter of fixed first photographic head, focuses to first photographic head further according to the Focusing parameter of the first photographic head.Its
In, first photographic head is the colour imagery shot for having optical filter, and the second camera is the black and white shooting for not having optical filter
Head.So, when the acquisition parameters of the first photographic head meet some requirements, object to be shot is carried out using second camera and entered
Row focusing, and determine the Focusing parameter of the first photographic head according to the Focusing parameter of second camera, solve in dark or
When the PD information of person's colour imagery shot is insincere, easy problem out of focus is realized in dark or colour imagery shot
When PD information is insincere, the purpose that accurately can be focused.
Embodiment two
Based on aforesaid embodiment, embodiments of the invention provide a kind of focusing method again, and Fig. 4 is the embodiment of the present invention two
Focusing method realizes schematic flow sheet, as shown in figure 4, the method is comprised the following steps：
The operation of step S401, mobile terminal based on user, opens camera applications；
Here, before step S401, methods described also includes：The operation of the mobile terminal receive user.It is described
Operate for opening camera applications；The operation can be made in the predeterminable area of user's camera applications in the terminal
Touch operation, or user on mobile terminals be used for start make in the physical button of camera applications pressing behaviour
Make.The physical button can be that, when the mobile terminal dispatches from the factory, production firm is to start the thing that camera applications are specially arranged
Reason button, or user by the physical button of some other functions be provided for start camera applications function physics by
Key.In addition, can also pass through voice or gesture control terminal startup camera applications, the startup camera applications enumerated listed above
What mode was merely exemplary, those skilled in the art are proposed according to its real needs using the technological thought of the present invention
The mode that other start camera applications is within the scope of the present invention, and here does not carry out exhaustive one by one.
The camera applications can be the use that the application program that the mobile terminal is carried, or user oneself download
In the application program taken pictures.
Step S402, the mobile terminal control the first camera collection image；
Here, after camera applications start, the mobile terminal controls first photographic head and carries out image acquisition, and defeated
Go out view data.Described image data include time of exposure, white balance value, light sensitivitys ISO value etc., and the mobile terminal is according to defeated
The view data for going out, described image is included on the display screen of the mobile terminal.
The image that step S403, the mobile terminal are gathered according to first photographic head, obtains first photographic head
Acquisition parameters；
Here, the acquisition parameters include but is not limited to ambient brightness value, time of exposure, light sensitivitys ISO value.Wherein, expose
Light time and light sensitivitys ISO value can pass through view data direct access.The ambient brightness value can be according to first shooting
The view data of head output, carries out statistical analysiss and obtains.In actual applications, it is possible to use automatic exposure algorithm (Auto
Exposure, AE) according to the view data of the first photographic head output, obtain the ambient brightness value residing for first photographic head
It is pre-conditioned that step S404, the mobile terminal judge whether the acquisition parameters meet；
Here, step S404 is further included：Judge the ambient brightness value whether less than default ambient brightness
Threshold value；Or,
Judge the ISO values whether more than default ISO threshold values；Or,
Judge the time of exposure whether more than default time of exposure threshold value.
Wherein, the ambient brightness threshold value can start camera applications to carry out survey of taking pictures under different ambient brightness
Examination, the view data exported using photographic head count the corresponding ambient brightness value of different images, and according to the image shot
Determine that the first photographic head is easily out of focus when ambient brightness value is less than a certain numerical value, the numerical value for determining is set to into environment
Luminance threshold.
ISO threshold values and time of exposure threshold value equally can also carry out survey of taking pictures by starting camera applications under various circumstances
Examination, determines that the first photographic head is easily out of focus, then the numerical value is defined as ISO threshold values when ISO values are higher than a certain numerical value.When
More than after a certain numerical value, the image definition shot is deteriorated time of exposure, then the numerical value is defined as time of exposure threshold value.
If step S405, the acquisition parameters meet pre-conditioned, the mobile terminal controls second camera pair
Object to be shot is focused；
Here, as shown in figure 5, when the acquisition parameters meet pre-conditioned, cannot be to focusing using the first photographic head
Region 501, is accurately focused.Now, the mobile terminal can eject the prompting user's " detection of dialog box 601 as shown in Figure 6
Accurately cannot focus, if switching focusing mode ", when user click on dialog box in "Yes" after, the mobile terminal according to
The operation at family, switches focusing mode, and control second camera is focused to object to be shot.
The Focusing parameter of step S406, the acquisition for mobile terminal second camera；
Step S407, the mobile terminal determine the focusing of the first photographic head according to the Focusing parameter of the second camera
Parameter；
Step S408, the mobile terminal control first photographic head carried out according to the Focusing parameter of the first photographic head it is right
It is burnt.
Here, the image focused after switching focusing mode is as shown in fig. 7,701 is using in the embodiment of the present invention
The focusing area image focused by focusing method.Can be seen that after switching focusing mode according to Fig. 5 and Fig. 7, bat can be treated
Take the photograph object accurately to be focused.
If step S409, the acquisition parameters are unsatisfactory for pre-conditioned, described in the acquisition for mobile terminal, first takes the photograph
As the Focusing parameter of head；
Here, when the mobile terminal bat that to judge that the acquisition parameters of the first photographic head are unsatisfactory for pre-conditioned, i.e., current
Take the photograph environment to be adapted to when being focused using the first photographic head, keep being focused using the first photographic head.
Step S410, the mobile terminal determine the second camera according to the Focusing parameter of first photographic head
Focusing parameter.
Here, mobile terminal enquiry mapping table set in advance, determines the focusing ginseng of first photographic head
The Focusing parameter of the corresponding second camera of number；Wherein, the mapping table be first photographic head Focusing parameter and
The mapping table of the Focusing parameter of second camera.The mapping table can be the factory when mobile terminal dispatches from the factory
Business is generated and is stored in mobile terminal according to the Focusing parameter of the first photographic head and the Focusing parameter of second camera.
Step S411, the mobile terminal control the second camera and are entered according to the Focusing parameter of the second camera
Row focusing.
Here, when determining in Focusing parameter of the mobile terminal according to the second camera that the second camera is focused
Using focal length, and focusing area, so control the second camera carry out on the focusing area according to the focal length it is right
It is burnt.
It should be noted that may be referred to other with the explanation of same steps in other embodiments or concept in the present embodiment
Description in embodiment, here is omitted.
In focusing method provided in an embodiment of the present invention, by obtaining the acquisition parameters of the first photographic head, institute is judged
State whether acquisition parameters meet pre-conditioned, if the acquisition parameters meet pre-conditioned, control second camera is treated
Shoot object to be focused and obtained the Focusing parameter of second camera, it is then true according to the Focusing parameter of the second camera
The Focusing parameter of fixed first photographic head, focuses to first photographic head further according to the Focusing parameter of the first photographic head.Its
In, first photographic head is the colour imagery shot for having optical filter, and the second camera is the black and white shooting for not having optical filter
Head.So, when the acquisition parameters of the first photographic head meet some requirements, object to be shot is carried out using second camera and entered
Row focusing, and determine the Focusing parameter of the first photographic head according to the Focusing parameter of second camera, solve in dark or
When the PD information of person's colour imagery shot is insincere, easy problem out of focus is realized in dark or colour imagery shot
When PD information is insincere, the purpose that accurately can be focused.
Embodiment three
Embodiments of the invention provide a kind of focusing mechanism, and the device can apply to the corresponding embodiment in Fig. 3～4 and provide
A kind of focusing method in, with reference to shown in Fig. 8, the device 800 includes：First acquisition module 801, the first control module 802,
Two acquisition modules 803, determining module 804 and the 3rd control module 805, wherein：
First acquisition module 801, for obtaining the acquisition parameters of the first photographic head；
First control module 802, if meeting pre-conditioned for the acquisition parameters, controls second camera pair
Object to be shot is focused；
Second acquisition module 803, for obtaining the Focusing parameter of second camera；
The determining module 804, for determining the focusing of the first photographic head according to the Focusing parameter of the second camera
Parameter；
3rd control module 805, for controlling Focusing parameter pair of first photographic head according to the first photographic head
Object to be shot is focused.
Focusing mechanism provided in an embodiment of the present invention, by obtaining the acquisition parameters of the first photographic head, judges the bat
Take the photograph whether parameter meets pre-conditioned, if the acquisition parameters meet pre-conditioned, control second camera is to be captured
Object is focused and is obtained the Focusing parameter of second camera, then determines according to the Focusing parameter of the second camera
The Focusing parameter of one photographic head, focuses to first photographic head further according to the Focusing parameter of the first photographic head.Wherein, institute
It is the colour imagery shot for having optical filter to state the first photographic head, and the second camera is the black and white photographic head for not having optical filter.This
Sample, when the acquisition parameters of the first photographic head meet some requirements, using second camera carry out object to be shot carry out it is right
Jiao, and the Focusing parameter of the first photographic head is determined according to the Focusing parameter of second camera, solve in dark or coloured silk
When the PD information of color photographic head is insincere, easily problem out of focus, realizes and believes in the PD of dark or colour imagery shot
When ceasing insincere, the purpose that accurately can be focused.
Example IV
Based on aforesaid embodiment, the embodiment of the present invention provides a kind of focusing mechanism again, and Fig. 9 is the embodiment of the present invention four pairs
The composition structural representation of coke installation, as shown in figure 9, described device 900 includes：Starting module 901, the second control module 902,
3rd acquisition module 903, judge module 904, the first control module 905, the second acquisition module 906, determining module 907 and the 3rd
Control module 908, wherein：
The starting module 901, for the operation based on user, starts camera applications；Wherein, it is described to operate for starting
Camera applications；
Second control module 902, for controlling the first camera collection image；
3rd acquisition module 903, for the image gathered according to first photographic head, obtains first shooting
The acquisition parameters of head；
The judge module 904, for judging it is pre-conditioned whether the acquisition parameters meet.
The judge module 904 is further included：
Whether the first judging unit, for judging the ambient brightness value less than default ambient brightness threshold value；Or,
Whether the second judging unit, for judging the ISO values more than default ISO threshold values；Or,
Whether the 3rd judging unit, judge the time of exposure more than default time of exposure threshold value.
First control module 905, if meeting pre-conditioned for the acquisition parameters, controls second camera pair
Object to be shot is focused；
Second acquisition module 906, for obtaining the Focusing parameter of second camera；
The determining module 907, for determining the focusing of the first photographic head according to the Focusing parameter of the second camera
Parameter；
Here, the determining module 907 is further included：
Determining unit, for inquiring about mapping table set in advance, determines the Focusing parameter pair of the second camera
The Focusing parameter of the first photographic head answered；Wherein, the mapping table is the Focusing parameter and second of first photographic head
The mapping table of the Focusing parameter of photographic head.
3rd control module 908, for controlling Focusing parameter pair of first photographic head according to the first photographic head
Object to be shot is focused.
It should be noted that the interaction in the present embodiment between unit and module, is referred to Fig. 3～4 pair
Interaction in a kind of focusing method that the embodiment answered is provided, here is omitted.
It should be noted that herein, term " including ", "comprising" or its any other variant are intended to non-row
His property is included, so that a series of process, method, article or device including key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
Also there is other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
The part for going out contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), use so that a station terminal equipment including some instructions (can be mobile phone, computer, clothes
Business device, air-conditioner, or network equipment etc.) perform method described by each embodiment of the invention.
The present invention be with reference to method according to embodiments of the present invention, equipment (system), and computer program flow process
Figure and/or block diagram are describing.It should be understood that can be by computer program instructions flowchart and/or each stream in block diagram
The combination of journey and/or square frame and flow chart and/or the flow process in block diagram and/or square frame.These computer programs can be provided
The processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced for reality by the instruction of computer or the computing device of other programmable data processing devices
The device of the function of specifying in present one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory is produced to be included referring to
Make the manufacture of device, the command device realize in one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or
The function of specifying in multiple square frames.
These computer program instructions can be also loaded in computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented process, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow process of flow chart or multiple flow processs and/or block diagram one
The step of function of specifying in individual square frame or multiple square frames.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of focusing mechanism, it is characterised in that described device includes：
First acquisition module, for obtaining the acquisition parameters of the first photographic head；
First control module, if meeting pre-conditioned for the acquisition parameters, control second camera is to object to be shot
Focused；
Second acquisition module, for obtaining the Focusing parameter of second camera；
Determining module, for determining the Focusing parameter of the first photographic head according to the Focusing parameter of the second camera；
3rd control module, enters to object to be shot according to the Focusing parameter of the first photographic head for controlling first photographic head
Row focusing.
2. according to the device described in claim 1, it is characterised in that described device also includes：
Starting module, for the operation based on user, starts camera applications；Wherein, it is described to operate for starting camera applications；
Second control module, for controlling the first camera collection image；
3rd acquisition module, for the image gathered according to first photographic head, obtains the shooting ginseng of first photographic head
Number；
Judge module, for judging it is pre-conditioned whether the acquisition parameters meet.
3. according to the device described in claim 2, it is characterised in that the acquisition parameters include ambient brightness value, light sensitivitys
ISO ISO values or time of exposure, accordingly, the judge module includes：
Whether the first judging unit, for judging the ambient brightness value less than default ambient brightness threshold value；Or,
Whether the second judging unit, for judging the ISO values more than default ISO threshold values；Or,
Whether the 3rd judging unit, judge the time of exposure more than default time of exposure threshold value.
4. according to the device described in claim 1, it is characterised in that the determining module includes：
Determining unit, for inquiring about mapping table set in advance, determines that the Focusing parameter of the second camera is corresponding
The Focusing parameter of the first photographic head；Wherein, the mapping table is Focusing parameter and second shooting of first photographic head
The mapping table of the Focusing parameter of head.
5. according to arbitrary described device in claim 1-4, it is characterised in that first photographic head is with light filter
Photographic head, second camera do not have the photographic head of light filter.
6. a kind of focusing method, it is characterised in that methods described includes：
Obtain the acquisition parameters of the first photographic head；
If the acquisition parameters meet pre-conditioned, control second camera is focused to object to be shot；
Obtain the Focusing parameter of second camera；
The Focusing parameter of the first photographic head is determined according to the Focusing parameter of the second camera；
Control first photographic head to focus object to be shot according to the Focusing parameter of first photographic head.
7. according to the method described in claim 6, it is characterised in that methods described also includes：
Based on the operation of user, camera applications are opened；Wherein, it is described to operate for opening camera applications；
Control the first camera collection image；
According to the image of first photographic head collection, the acquisition parameters of first photographic head are obtained；
Judge whether the acquisition parameters meet pre-conditioned.
8. according to the method described in claim 7, it is characterised in that the acquisition parameters include ambient brightness value, light sensitivitys
ISO ISO values or time of exposure, accordingly, described to judge whether the acquisition parameters meet pre-conditioned,
Including：
Judge the ambient brightness value whether less than default ambient brightness threshold value；Or,
Judge the ISO values whether more than default ISO threshold values；Or,
Judge the time of exposure whether more than default time of exposure threshold value.
9. according to the method described in claim 6, it is characterised in that the Focusing parameter according to the second camera is true
The Focusing parameter of fixed first photographic head includes：
Inquire about mapping table set in advance, determine the second camera corresponding first photographic head of Focusing parameter it is right
Burnt parameter；Wherein, the mapping table is the Focusing parameter and the Focusing parameter of second camera of first photographic head
Mapping table.
10. according to arbitrary described method in claim 6-9, it is characterised in that first photographic head is with light filter
Photographic head, second camera with light filter photographic head.
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| CN201611072480.8A CN106534696A (en) | 2016-11-29 | 2016-11-29 | Focusing apparatus and method |
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