CN105208279B - A kind of parfocal method and apparatus in school - Google Patents
A kind of parfocal method and apparatus in school Download PDFInfo
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- CN105208279B CN105208279B CN201510644142.6A CN201510644142A CN105208279B CN 105208279 B CN105208279 B CN 105208279B CN 201510644142 A CN201510644142 A CN 201510644142A CN 105208279 B CN105208279 B CN 105208279B
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- movable lens
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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
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Abstract
The invention discloses a kind of parfocal method and apparatus in school, comprising: the position of movable lens when instructing the object focus for obtaining the distance between camera pair and camera as the focal length in focus correction instruction according to focus correction from the user；Save the corresponding relationship between the focal length in focus correction instruction and the position of the movable lens of acquisition.Scheme through the invention, the position of movable lens and preservation corrects the focus of camera when by obtaining object focus that the distance between camera pair and camera are the focal length in focus correction instruction, to solve the phenomenon being not allowed of focusing that user occurs during carrying out manual focus.
Description
Technical field
The present invention relates to terminal technology, espespecially a kind of parfocal method and apparatus in school.
Background technique
The existing method for realizing manual focus generally comprises:
Receive manual focus instruction from the user, pair between pre-set focal length and movable lens position
In should being related to, the corresponding movable lens position of focal length in manual focus instruction is searched；Camera lens current location is obtained, according to obtaining
The camera lens current location obtained, the movable lens position found are focused.
In the existing method for realizing manual focus, since corresponding relationship is provided by Mo Zu genuine provider, will be removable
During index glass head is installed to mobile terminal, often will appear rigging error, cause data in corresponding relationship and it is practical not
The corresponding relationship itself that symbol or Mo Zu genuine provider provide has certain error, and it is right manually in progress to will lead to user
Occurs the inaccurate phenomenon of focusing during burnt, therefore, it is necessary to the focuses to camera lens to be corrected, i.e. focusing is corresponding removable
Lens location is corrected, so that user can focus accurately during manual focus.And there has been no effective for the prior art
Bearing calibration.
Summary of the invention
To solve the above-mentioned problems, it the invention proposes a kind of parfocal method and apparatus in school, is able to solve user and exists
Carry out the inaccurate phenomenon of focusing occur during manual focus.
In order to achieve the above object, the invention proposes a kind of parfocal methods in school, comprising:
Acquisition the distance between camera pair and camera is instructed to refer to for focus correction according to focus correction from the user
The position of movable lens when the object focus of the focal length in order；
Save the corresponding relationship between the focal length in focus correction instruction and the position of the movable lens of acquisition.
Preferably, described to be according to focus correction from the user instruction acquisition the distance between camera pair and camera
The position of movable lens includes: when the object focus of the focal length in focus correction instruction
The movable lens is placed in different positions respectively, obtains the preview frame number of the object at different location
According to；
The maximum preview frame data of sharp keen degree for obtaining object edge described in each preview frame data obtained are corresponding
The position of the movable lens.
Preferably, the corresponding relationship is saved in non-erasable subregion.
Preferably, when receiving the manual focus instruction from the user, this method further include:
The position of the corresponding movable lens of focal length in the manual focus instruction is searched in the corresponding relationship；
Obtain the current location of the movable lens；
It is focused according to the position of the current location of the movable lens of acquisition, the movable lens found.
The invention also provides a kind of parfocal devices in school, include at least:
Module is obtained, obtains the distance between camera pair and camera for instructing according to focus correction from the user
For focus correction instruction in focal length object focus when movable lens position；
Memory module, for saving pair between the focal length in focus correction instruction and the position of the movable lens of acquisition
It should be related to.
Preferably, the acquisition module is specifically used for:
The movable lens is placed in different positions respectively, obtains the preview frame number of the object at different location
According to；
The maximum preview frame data of sharp keen degree for obtaining object edge described in each preview frame data obtained are corresponding
The position of movable lens.
Preferably, the memory module is specifically used for:
The corresponding relationship is saved in non-erasable subregion.
Preferably, further includes:
Receiving module, for receiving the manual focus instruction from the user；
Searching module, it is corresponding removable for searching the focal length in the manual focus instruction in the corresponding relationship
The position of camera lens；
The acquisition module is also used to: obtaining the current location of the movable lens；
Further include:
Focusing module, for the position according to the current location of the movable lens of acquisition, the movable lens found
It focuses.
Compared with prior art, the present invention includes: and is instructed to obtain camera pair and take the photograph according to focus correction from the user
As the distance between head be focus correction instruction in focal length object focus when movable lens position；Save focus correction
Corresponding relationship between the position of the movable lens of focal length and acquisition in instruction.Scheme through the invention passes through acquisition
The position of movable lens when the distance between camera pair and camera are the object focus of the focal length in focus correction instruction
And save to correct the focus of camera, so that solve that the focusing that user occurs during carrying out manual focus is not allowed shows
As.
Detailed description of the invention
The attached drawing in the embodiment of the present invention is illustrated below, the attached drawing in embodiment be for of the invention into one
Step understands, is used to explain the present invention, does not constitute a limitation on the scope of protection of the present invention together with specification.
The hardware structural diagram of Fig. 1 mobile terminal of each embodiment to realize the present invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
Fig. 3 is the flow chart of the parfocal method in school of the present invention；
Fig. 4 is focus of the present invention and schematic diagram out of focus；
Fig. 5 is the structure composition schematic diagram of the parfocal device in school of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
For the ease of the understanding of those skilled in the art, the invention will be further described with reference to the accompanying drawing, not
It can be used to limit the scope of the invention.It should be noted that in the absence of conflict, embodiment and reality in the application
The various modes applied in example can be combined with each other.
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The mobile terminal of each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, use
For indicate element such as " module ", " component " or " unit " suffix only for being conducive to explanation of the invention, itself
There is no specific meanings.Therefore, " module " can be used mixedly with " component ".
Mobile terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as moving
Phone, smart phone, laptop, digit broadcasting receiver, PDA (personal digital assistant), PAD (tablet computer), PMP
The mobile terminal of (portable media player), navigation device etc. and such as number TV, desktop computer etc. are consolidated
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that in addition to being used in particular for moving
Except the element of purpose, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
Fig. 1 to realize the present invention the mobile terminal of each embodiment hardware configuration signal.
Mobile terminal 100 may include wireless communication unit 110, A/V (audio/video) input unit 120, user's input
Unit 130, sensing unit 140, output unit 150, memory 160, interface unit 170, controller 180 and power supply unit 190
Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups shown
Part.More or fewer components can alternatively be implemented.The element of mobile terminal will be discussed in more detail below.
Wireless communication unit 110 generally includes one or more components, allows mobile terminal 100 and wireless communication system
Or the radio communication between network.For example, wireless communication unit may include broadcasting reception module 111, mobile communication module
112, 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 from external broadcast management server via broadcast channel
Relevant information.Broadcast channel may include satellite channel and/or terrestrial channel.Broadcast management server, which can be, to be generated and sent
The broadcast singal and/or broadcast related information generated before the server or reception of broadcast singal and/or broadcast related information
And send it to the server of terminal.Broadcast singal may include TV broadcast singal, radio signals, data broadcasting
Signal etc..Moreover, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Closing information can also provide via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 receives.Broadcast singal can exist in a variety of manners, for example, it can be with the electronics of digital multimedia broadcasting (DMB)
Program guide (EPG), digital video broadcast-handheld (DVB-H) electronic service guidebooks (ESG) etc. form and exist.Broadcast
Receiving module 111 can receive signal broadcast by using various types of broadcast systems.Particularly, broadcasting reception module 111
It can be wide by using such as multimedia broadcasting-ground (DMB-T), digital multimedia broadcasting-satellite (DMB-S), digital video
It broadcasts-holds (DVB-H), forward link media (MediaFLO@) Radio Data System, received terrestrial digital broadcasting integrated service
(ISDB-T) etc. digit broadcasting system receives digital broadcasting.Broadcasting reception module 111, which may be constructed such that, to be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via the received broadcast singal of broadcasting reception module 111 and/
Or broadcast related information can store in memory 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 may include that voice is logical
Talk about signal, video calling signal or according to text and/or Multimedia Message transmission and/or received various types of data.
The Wi-Fi (Wireless Internet Access) of the support mobile terminal of wireless Internet module 113.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved in the module may include WLAN (Wireless LAN) (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 short range communication.Some examples of short-range communication technology include indigo plant
ToothTM, radio frequency identification (RFID), Infrared Data Association (IrDA), ultra wide band (UWB), purple honeybeeTMEtc..
Location information module 115 is the module for checking or obtaining the location information of mobile terminal.Location information module
Typical case be GPS (global positioning system).According to current technology, GPS module 115, which calculates, comes from three or more satellites
Range information and correct time information and the Information application triangulation for calculating, thus according to longitude, latitude
Highly accurately calculate three-dimensional current location information.Currently, it is defended for the method for calculating position and temporal information using three
Star and the error that calculated position and temporal information are corrected by using an other satellite.In addition, GPS module 115
It can be by Continuous plus current location information in real time come calculating speed information.
A/V input unit 120 is for receiving audio or video signal.A/V input unit 120 may include 121 He of camera
Microphone 1220, camera 121 is to the static map obtained in video acquisition mode or image capture mode by image capture apparatus
The image data of piece or video is handled.Treated, and picture frame may be displayed on display unit 151.At camera 121
Picture frame after reason can store in memory 160 (or other storage mediums) or carry out via wireless communication unit 110
It sends, two or more cameras 1210 can be provided according to the construction of mobile terminal.Microphone 122 can be in telephone relation mould
Sound (audio data) is received via microphone in formula, logging mode, speech recognition mode etc. operational mode, and can be incited somebody to action
Such acoustic processing is audio data.Audio that treated (voice) data can be converted in the case where telephone calling model
For the format output that can be sent to mobile communication base station via mobile communication module 112.Various types can be implemented in microphone 122
Noise eliminate (or inhibit) algorithm with eliminate noise that (or inhibition) generates during sending and receiving audio signal or
Person's interference.
The order that user input unit 130 can be inputted according to user generates key input data to control each of mobile terminal
Kind operation.User input unit 130 allows user to input various types of information, and may include keyboard, metal dome, touch
Plate (for example, the sensitive component of detection due to the variation of resistance, pressure, capacitor etc. caused by being contacted), idler wheel, rocking bar etc.
Deng.Particularly, when touch tablet is superimposed upon in the form of layer on display unit 151, touch screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 100, (for example, mobile terminal 100 opens or closes shape
State), the position of mobile terminal 100, user is for the presence or absence of contact (that is, touch input) of mobile terminal 100, mobile terminal
100 orientation, the acceleration or deceleration movement of mobile terminal 100 and direction etc., and generate for controlling mobile terminal 100
The order of operation or signal.For example, sensing unit 140 can sense when mobile terminal 100 is embodied as sliding-type mobile phone
The sliding-type phone is to open or close.In addition, sensing unit 140 be able to detect power supply unit 190 whether provide electric power or
Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 may include that proximity sensor 1410 will combine below
Touch screen is described this.
Interface unit 170 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be storage and use each of mobile terminal 100 for verifying user
It plants information and may include subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM)
Etc..In addition, the device (hereinafter referred to as " identification device ") with identification module can take the form of smart card, therefore, know
Other device can be connect via port or other attachment devices with mobile terminal 100.Interface unit 170, which can be used for receiving, to be come from
The input (for example, data information, electric power etc.) of external device (ED) and the input received is transferred in mobile terminal 100
One or more elements can be used for transmitting data between mobile terminal and external device (ED).
In addition, when mobile terminal 100 is connect with external base, interface unit 170 may be used as allowing will be electric by it
Power, which is provided from pedestal to the path or may be used as of mobile terminal 100, allows the various command signals inputted from pedestal to pass through it
It is transferred to the path of mobile terminal.The various command signals or electric power inputted from pedestal, which may be used as mobile terminal for identification, is
The no signal being accurately fitted on pedestal.Output unit 150 is configured to provide with vision, audio and/or tactile manner defeated
Signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.) out.Output unit 150 may include display
Unit 151, audio output module 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information handled in mobile terminal 100.For example, when mobile terminal 100 is in electricity
When talking about call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia file
Downloading etc.) relevant user interface (UI) or graphic user interface (GUI).When mobile terminal 100 is in video calling mode
Or when image capture mode, display unit 151 can show captured image and/or received image, show video or figure
Picture and the UI or GUI of correlation function etc..
Meanwhile when display unit 151 and touch tablet in the form of layer it is superposed on one another to form touch screen when, display unit
151 may be used as input unit and output device.Display unit 151 may 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 displays may be constructed such that transparence to allow user to watch from outside, 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
Desired embodiment, mobile terminal 100 may include two or more display units (or other display devices), for example, moving
Dynamic terminal may include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for detecting touch
Input pressure and touch input position and touch input area.
Audio output module 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
It is when under the isotypes such as speech recognition mode, broadcast reception mode, wireless communication unit 110 is received or in memory 160
The audio data transducing audio signal of middle storage and to export be sound.Moreover, audio output module 152 can provide and movement
The relevant audio output of specific function (for example, call signal receives sound, message sink sound etc.) that terminal 100 executes.
Audio output module 152 may include loudspeaker, buzzer etc..
Alarm unit 153 can provide output notifying event to mobile terminal 100.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..Other than audio or video output, alarm unit
153 can provide output in different ways with the generation of notification event.For example, alarm unit 153 can be in the form of vibration
Output is provided, when receiving calling, message or some other entrance communications (incomingcommunication), alarm list
Member 153 can provide tactile output (that is, vibration) to notify to user.By providing such tactile output, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153
The output of the generation of notification event can be provided via display unit 151 or audio output module 152.
Memory 160 can store the software program etc. of the processing and control operation that are executed by controller 180, Huo Zheke
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And memory 160 can store about the vibrations of various modes and audio signal exported when touching and being applied to touch screen
Data.
Memory 160 may include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, more
Media card, card-type memory (for example, SD or DX memory etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..Moreover, mobile terminal 100 can execute memory with by network connection
The network storage device of 160 store function cooperates.
The overall operation of the usually control mobile terminal of controller 180.For example, controller 180 executes and voice communication, data
Communication, video calling etc. relevant control and processing.In addition, controller 180 may include for reproducing (or playback) more matchmakers
The multi-media module 1810 of volume data, multi-media module 1810 can construct in controller 180, or can be structured as and control
Device 180 processed separates.Controller 180 can be with execution pattern identifying processing, by the handwriting input executed on the touchscreen or figure
Piece draws input and is identified as character or image.
Power supply unit 190 receives external power or internal power under the control of controller 180 and provides operation each member
Electric power appropriate needed for part and component.
Various embodiments described herein can be to use the calculating of such as computer software, hardware or any combination thereof
Machine readable medium is implemented.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), controller, microcontroller, microprocessor, is designed to execute function described herein processor
At least one of electronic unit is implemented, and in some cases, such embodiment can be implemented in controller 180.
For software implementation, the embodiment of such as process or function can with allow to execute the individual of at least one functions or operations
Software module is implemented.Software code can by the software application (or program) write with any programming language appropriate Lai
Implement, software code can store in memory 160 and be executed by controller 180.
So far, oneself is through describing mobile terminal according to its function.In the following, 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., which is used as, to be shown
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
Mobile terminal 100 as shown in Figure 1 may be constructed such that using via frame or grouping send data it is all if any
Line and wireless communication system and satellite-based communication system operate.
Referring now to Fig. 2 description communication system that wherein mobile terminal according to the present invention can operate.
Different air interface and/or physical layer can be used in such communication system.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) (particularly, 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 introduction is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system may include multiple mobile terminals 100, 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 in several 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 may include multiple BSC2750 as shown in Figure 2.
Each BS270 can service one or more subregions (or region), by multidirectional antenna or the day of direction specific direction
Each subregion of line covering is radially far from BS270.Alternatively, each subregion can be by two or more for diversity reception
Antenna covering.Each BS270, which may be constructed such that, supports multiple frequency distribution, and the distribution of each frequency has specific frequency spectrum
(for example, 1.25MHz, 5MHz etc.).
What subregion and frequency were distributed, which intersects, 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 indicating single
BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Alternatively, each subregion of specific BS270 can be claimed
For multiple cellular stations.
As shown in Figure 2, broadcast singal is sent to the mobile terminal operated in system by broadcsting transmitter (BT) 295
100.Broadcasting reception module 111 as shown in Figure 1 is arranged at mobile terminal 100 to receive the broadcast sent by BT295
Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.The help of satellite 300 positions multiple mobile terminals
At least one of 100.
In Fig. 2, multiple satellites 300 are depicted, it is understood that, it is useful to can use any number of satellite acquisition
Location information.GPS module 115 as shown in Figure 1 is generally configured to cooperate with satellite 300 to obtain desired positioning and believe
Breath.It substitutes GPS tracking technique or except GPS tracking technique, the other of the position that can track mobile terminal can be used
Technology.In addition, at least one 300 property of can choose of GPS satellite or extraly processing satellite dmb transmission.
As a typical operation of wireless communication system, BS270 receives the reverse link from various mobile terminals 100
Signal.Mobile terminal 100 usually participates in call, information receiving and transmitting and other types of communication.Certain base station 270 is received each anti-
It is handled in specific BS270 to link signal.The data of acquisition are forwarded to relevant BSC275.BSC provides call
The mobile management function of resource allocation and the coordination including the soft switching process between BS270.The number that BSC275 will also be received
According to MSC280 is routed to, the additional route service for forming interface with PSTN290 is provided.Similarly, PSTN290 with
MSC280 forms interface, and MSC and BSC275 form interface, and BSC275 controls BS270 correspondingly with by forward link signals
It is sent to mobile terminal 100.
Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the method for the present invention is proposed.
As shown in figure 3, first embodiment of the invention proposes a kind of parfocal method in school, comprising:
Step 300 instructs acquisition the distance between camera pair and camera for coke according to focus correction from the user
The position of movable lens when the object focus of the focal length in point correction instruction.
In this step, user can send focus correction instruction by touch screen etc., and specific implementation belongs to this field skill
The well-known technique of art personnel.
In this step, being instructed according to focus correction from the user and obtaining the distance between camera pair and camera is coke
The position of movable lens includes: when the object focus of the focal length in point correction instruction
Movable lens is placed in different positions respectively, obtains the preview frame data of object at different location；Acquisition obtains
The position of the corresponding movable lens of the maximum preview frame data of sharp keen degree of object edge in each preview frame data obtained.
Wherein, the preview frame data for specifically how obtaining object at different location belong to the known skill of those skilled in the art
Art is not intended to limit the scope of protection of the present invention, and which is not described herein again.
Wherein, the sharp keen degree for specifically how obtaining the object edge of each preview frame data belongs to those skilled in the art's
Well-known technique is not intended to limit the scope of protection of the present invention, and which is not described herein again.
Wherein it is possible to which controlling stepper motor by software is placed in movable lens different positions, specific implementation belongs to
It in the well-known technique of those skilled in the art, is not intended to limit the scope of protection of the present invention, which is not described herein again.
In this step, when focus refers to shooting photo, subject blur-free imaging.As shown in figure 4, camera is in focus
When, imaging sensor is placed exactly in clear image planes；And when camera is out of focus, imaging sensor deviates clear image planes.
In this step, movable lens belongs to a part of camera, and the other parts of camera belong to non-moveable mirror
Head.That is, camera only has a portion that can move, this depends on the design of camera.
Corresponding pass between the position of the movable lens of step 301, the focal length in preservation focus correction instruction and acquisition
System.
In this step, corresponding relationship can be saved in non-erasable subregion.
Wherein, non-erasable subregion refers to data once being written, and subsequent movement terminal user resets or writes with a brush dipped in Chinese ink anyway
Version is all unaffected.For Android (Android) system, non-erasable subregion is generally persist subregion.
Scheme through the invention corrects the coke of camera by the position and preservation of movable lens when acquisition focus
Point, to solve the phenomenon that the focusing that user occurs during carrying out manual focus is not allowed.
That is, user can to different focal lengths obtain focus when movable lens position come realize one a pair
Coke, to solve the phenomenon that the focusing that user occurs during carrying out manual focus is not allowed.
Further, when receiving manual focus from the user instruction, this method further include:
The position of the corresponding movable lens of focal length in manual focus instruction is searched in corresponding relationship；It obtains removable
The current location of camera lens；It is carried out pair according to the position of the current location of the movable lens of acquisition, the movable lens found
It is burnt.
Wherein, it when searching the position less than the corresponding movable lens of focal length in manual focus instruction, can search
With the position of the corresponding movable lens of the smallest two focal lengths of absolute value of difference of focal length in manual focus instruction, to obtaining
The position of two movable lens obtained carries out linear interpolation and obtains the corresponding movable lens of focal length in manual focus instruction
Position, focused according to the position of movable lens that the current location of the movable lens of acquisition, interpolation obtain.
Wherein, the current location for specifically how obtaining movable lens belongs to the well-known technique of those skilled in the art, and
It is not intended to limit the scope of the invention, which is not described herein again.
Wherein, specifically how according to the current location of the movable lens of acquisition, the position of the movable lens found
The well-known technique that focusing belongs to those skilled in the art is carried out, is not intended to limit the scope of protection of the present invention, it is no longer superfluous here
It states.
Referring to Fig. 5, the present invention further provides a kind of parfocal devices in school, include at least:
Module is obtained, obtains the distance between camera pair and camera for instructing according to focus correction from the user
For focus correction instruction in focal length object focus when movable lens position；
Memory module, for saving pair between the focal length in focus correction instruction and the position of the movable lens of acquisition
It should be related to.
Wherein, receiving module can be set in the user input unit 130 in Fig. 1, and obtaining module can be set in Fig. 1
In controller 180 in, memory module can be set in the memory 160 in Fig. 1.
In the device of the invention, obtains module and is specifically used for:
Movable lens is placed in different positions respectively, obtains the preview frame data of object at different location；
The maximum preview frame data of sharp keen degree for obtaining object edge in each preview frame data obtained are corresponding removable
The position of index glass head.
In the device of the invention, memory module is specifically used for:
Corresponding relationship is saved in non-erasable subregion.
Corresponding relationship is saved in non-erasable subregion.
In the device of the invention, further includes:
Receiving module, for receiving manual focus instruction from the user；
Searching module, for searching the position of the corresponding movable lens of focal length in manual focus instruction in corresponding relationship
It sets；
It obtains module to be also used to: obtaining the current location of movable lens；
Further include:
Focusing module, for the position according to the current location of the movable lens of acquisition, the movable lens found
It focuses.
Wherein, searching module and Focusing module can be set in the controller 180 in Fig. 1.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes
Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (6)
1. a kind of parfocal method in school characterized by comprising
When receiving focus correction from the user instruction, movable lens is placed in different positions respectively, obtained different
The preview frame data of object at position；
The maximum preview frame data of sharp keen degree for obtaining object edge described in each preview frame data obtained are corresponding described
The position of movable lens；
Save the corresponding relationship between the focal length in focus correction instruction and the position of the movable lens of acquisition.
2. the method according to claim 1, wherein the corresponding relationship is saved in non-erasable subregion.
3. method according to claim 1 or 2, which is characterized in that refer to when receiving the manual focus from the user
When enabling, this method further include:
The position of the corresponding movable lens of focal length in the manual focus instruction is searched in the corresponding relationship；
Obtain the current location of the movable lens；
It is focused according to the position of the current location of the movable lens of acquisition, the movable lens found.
4. a kind of parfocal device in school, which is characterized in that include at least:
Module is obtained, for being respectively placed in movable lens different when receiving focus correction from the user instruction
Position obtains the preview frame data of object at different location；
The maximum preview frame data of sharp keen degree for obtaining object edge described in each preview frame data obtained are corresponding removable
The position of index glass head；
Memory module, for saving the corresponding pass between the focal length in focus correction instruction and the position of the movable lens of acquisition
System.
5. device according to claim 4, which is characterized in that the memory module is specifically used for:
The corresponding relationship is saved in non-erasable subregion.
6. device according to claim 4 or 5, which is characterized in that further include:
Receiving module, for receiving the manual focus instruction from the user；
Searching module, for searching the corresponding movable lens of focal length in the manual focus instruction in the corresponding relationship
Position；
The acquisition module is also used to: obtaining the current location of the movable lens；
Further include:
Focusing module, for being carried out according to the current location of movable lens, the position of the movable lens found of acquisition
Focusing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510644142.6A CN105208279B (en) | 2015-09-30 | 2015-09-30 | A kind of parfocal method and apparatus in school |
| PCT/CN2016/100791 WO2017054752A1 (en) | 2015-09-30 | 2016-09-29 | Method and device for correcting focal point and method and device for implementing focusing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510644142.6A CN105208279B (en) | 2015-09-30 | 2015-09-30 | A kind of parfocal method and apparatus in school |
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| CN105208279B true CN105208279B (en) | 2019-05-21 |
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| CN105208279B (en) * | 2015-09-30 | 2019-05-21 | 努比亚技术有限公司 | A kind of parfocal method and apparatus in school |
| CN107948536B (en) * | 2018-01-03 | 2020-04-24 | 上海传英信息技术有限公司 | Dynamic calibration manual focusing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1794032A (en) * | 2005-12-30 | 2006-06-28 | 北京中星微电子有限公司 | Automatic focusing method |
| CN1815341A (en) * | 2005-02-06 | 2006-08-09 | 亚洲光学股份有限公司 | Method and system for automatically adjusting flash strength for camera |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4483930B2 (en) * | 2007-11-05 | 2010-06-16 | ソニー株式会社 | Imaging apparatus, control method thereof, and program |
| JP6032879B2 (en) * | 2011-10-03 | 2016-11-30 | キヤノン株式会社 | Imaging information output device and lens device having the same |
| JP6296698B2 (en) * | 2013-05-14 | 2018-03-20 | オリンパス株式会社 | Camera system and focus adjustment method |
| JP6234084B2 (en) * | 2013-07-02 | 2017-11-22 | オリンパス株式会社 | Imaging device |
| CN104503188A (en) * | 2014-12-31 | 2015-04-08 | 信利光电股份有限公司 | Automatic focusing module and mobile equipment |
| CN105208279B (en) * | 2015-09-30 | 2019-05-21 | 努比亚技术有限公司 | A kind of parfocal method and apparatus in school |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815341A (en) * | 2005-02-06 | 2006-08-09 | 亚洲光学股份有限公司 | Method and system for automatically adjusting flash strength for camera |
| CN1794032A (en) * | 2005-12-30 | 2006-06-28 | 北京中星微电子有限公司 | Automatic focusing method |
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| WO2017054752A1 (en) | 2017-04-06 |
| CN105208279A (en) | 2015-12-30 |
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