CN105208279A - Focus correction method and device - Google Patents
Focus correction method and device Download PDFInfo
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- CN105208279A CN105208279A CN201510644142.6A CN201510644142A CN105208279A CN 105208279 A CN105208279 A CN 105208279A CN 201510644142 A CN201510644142 A CN 201510644142A CN 105208279 A CN105208279 A CN 105208279A
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- Prior art keywords
- camera lens
- focus
- removable camera
- removable
- focal length
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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
Abstract
The invention discloses a focus correction method and device. The method includes the steps that according to a focus correction instruction from a user, the position of a movable lens is obtained when focuses of objects with the distance between cameras as the focal length in the focus correcting instruction coincide with one another; the corresponding relation between the focal length in the focus correction instruction and the obtained position of the movable lens is saved. According to the scheme, by obtaining the position of the movable lens when the focuses of the objects with the distance between the cameras as the focal length in the focus correcting instruction coincide with one another and saving the focuses of the corrected cameras, the phenomenon that focusing is not accurate in the process that users perform manual focusing is eliminated.
Description
Technical field
The present invention relates to terminal technology, the parfocal method and apparatus in espespecially a kind of school.
Background technology
The existing method realizing manual focus roughly comprises:
Receive the manual focus instruction from user, in the corresponding relation between the focal length pre-set and removable lens location, search the removable lens location that focal length in manual focus instruction is corresponding; Obtain camera lens current location, focus according to the camera lens current location obtained, the removable lens location found.
Existingly realize in the method for manual focus, because corresponding relation is provided by module genuine provider, removable camera lens is being installed in the process of mobile terminal, often there is rigging error, the data in corresponding relation are caused not conform to the actual conditions, or the corresponding relation itself that module genuine provider provides has certain error, user can be caused to carry out occurring in manual focus process the phenomenon that focusing is inaccurate, therefore, need to correct the focus of camera lens, namely the removable lens location that focusing is corresponding corrects, can focus in manual focus process accurately to make user.And prior art not yet has effective bearing calibration.
Summary of the invention
In order to solve the problem, the present invention proposes the parfocal method and apparatus in a kind of school, user can be solved and carrying out occurring in manual focus process the phenomenon that focusing is inaccurate.
In order to achieve the above object, the present invention proposes a kind of parfocal method in school, comprising:
The position of removable camera lens when being the object focus of focal length in focus correction instruction according to the focus correction instruction distance obtained between camera pair and camera from user;
Corresponding relation between the position of the focal length in preservation focus correction instruction and the removable camera lens of acquisition.
Preferably, when described basis is the object focus of focal length in focus correction instruction from the focus correction instruction distance obtained between camera pair and camera of user, the position of removable camera lens comprises:
Respectively described removable camera lens is placed in different positions, obtains the preview frame data of object described in diverse location place;
The position of the described removable camera lens that the preview frame data that described in each preview frame data that acquisition obtains, the sharp keen degree of object edge is maximum are corresponding.
Preferably, described corresponding relation is saved in non-erasable subregion.
Preferably, when receiving the manual focus instruction from described user, the method also comprises:
The position of removable camera lens corresponding to focal length in described manual focus instruction is searched in described corresponding relation;
Obtain the current location of described removable camera lens;
Focus according to the current location of the removable camera lens obtained, the position of removable camera lens that finds.
The invention allows for the parfocal device in a kind of school, at least comprise:
Acquisition module, the position of removable camera lens during for being the object focus of focal length in focus correction instruction according to the focus correction instruction distance obtained between camera pair and camera from user;
Memory module, for preserve the removable camera lens of focal length in focus correction instruction and acquisition position between corresponding relation.
Preferably, described acquisition module specifically for:
Respectively described removable camera lens is placed in different positions, obtains the preview frame data of object described in diverse location place;
The position of the removable camera lens that the preview frame data that described in each preview frame data that acquisition obtains, the sharp keen degree of object edge is maximum are corresponding.
Preferably, described memory module specifically for:
Described corresponding relation is saved in non-erasable subregion.
Preferably, also comprise:
Receiver module, for receiving the manual focus instruction from described user;
Search module, for searching the position of removable camera lens corresponding to focal length in described manual focus instruction in described corresponding relation;
Described acquisition module is also for the current location that obtains described removable camera lens;
Also comprise:
Focusing module, focuses for the current location according to the removable camera lens obtained, the position of removable camera lens that finds.
Compared with prior art, the present invention includes: the position of removable camera lens when being the object focus of focal length in focus correction instruction according to the focus correction instruction distance obtained between camera pair and camera from user; Corresponding relation between the position of the focal length in preservation focus correction instruction and the removable camera lens of acquisition.Pass through the solution of the present invention, when being the object focus of focal length in focus correction instruction by the distance obtained between camera pair and camera removable camera lens position and preserves to correct the focus of camera, thus solve the phenomenon that user forbidden in the focusing carrying out occurring in manual focus process.
Accompanying drawing explanation
Be described the accompanying drawing in the embodiment of the present invention below, the accompanying drawing in embodiment is for a further understanding of the present invention, is used from explanation the present invention, does not form limiting the scope of the invention with specification one.
Fig. 1 is the hardware configuration schematic diagram of the mobile terminal realizing each embodiment of 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 realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with accompanying drawing, the invention will be further described, can not be used for limiting the scope of the invention.It should be noted that, when not conflicting, the various modes in the embodiment in the application and embodiment can combine mutually.
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The mobile terminal realizing each embodiment of the present invention is described referring now to accompanying drawing.In follow-up description, use the suffix of such as " module ", " parts " or " unit " for representing element only in order to be conducive to explanation of the present invention, itself is specific meaning not.Therefore, " module " and " parts " can mixedly use.
Mobile terminal can be implemented in a variety of manners.Such as, the terminal described in the present invention can comprise the such as mobile terminal of mobile phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP (portable media player), guider etc. and the fixed terminal of such as digital TV, desktop computer etc.Below, suppose that terminal is mobile terminal.But it will be appreciated by those skilled in the art that except the element except being used in particular for mobile object, structure according to the embodiment of the present invention also can be applied to the terminal of fixed type.
Fig. 1 is the hardware configuration signal of the mobile terminal realizing each embodiment of the present invention.
Mobile terminal 100 can comprise wireless communication unit 110, A/V (audio/video) input unit 120, user input unit 130, sensing cell 140, output unit 150, memory 160, interface unit 170, controller 180 and power subsystem 190 etc.Fig. 1 shows the mobile terminal with various assembly, it should be understood that, does not require to implement all assemblies illustrated.Can alternatively implement more or less assembly.Will be discussed in more detail below the element of mobile terminal.
Wireless communication unit 110 generally includes one or more assembly, and it allows the radio communication between mobile terminal 100 and wireless communication system or network.Such as, wireless communication unit can comprise at least one in broadcast reception module 111, mobile communication module 112, wireless Internet module 113, short range communication module 114 and positional information module 115.
Broadcast reception module 111 via broadcast channel from external broadcasting management server receiving broadcast signal and/or broadcast related information.Broadcast channel can comprise satellite channel and/or terrestrial channel.Broadcast management server can be generate and send the server of broadcast singal and/or broadcast related information or the broadcast singal generated before receiving and/or broadcast related information and send it to the server of terminal.Broadcast singal can comprise TV broadcast singal, radio signals, data broadcasting signal etc.And broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast related information also can provide via mobile communications network, and in this case, broadcast related information can be received by mobile communication module 112.Broadcast singal can exist in a variety of manners, such as, it can exist with the form of the electronic service guidebooks (ESG) of the electronic program guides of DMB (DMB) (EPG), digital video broadcast-handheld (DVB-H) etc.Broadcast reception module 111 can by using the broadcast of various types of broadcast system Received signal strength.Especially, broadcast reception module 111 can by using such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), digital video broadcasting-hand-held (DVB-H), forward link media (MediaFLO
) the digit broadcasting system receiving digital broadcast of Radio Data System, received terrestrial digital broadcasting integrated service (ISDB-T) etc.Broadcast reception module 111 can be constructed to be applicable to providing the various broadcast system of broadcast singal and above-mentioned digit broadcasting system.The broadcast singal received via broadcast reception module 111 and/or broadcast related information can be stored in memory 160 (or storage medium of other type).
Radio signal is sent at least one in base station (such as, access point, Node B etc.), exterior terminal and server and/or receives radio signals from it by mobile communication module 112.Various types of data that such radio signal can comprise voice call signal, video calling signal or send according to text and/or Multimedia Message and/or receive.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.This module can be inner or be externally couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by this module can comprise WLAN (WLAN) (Wi-Fi), Wibro (WiMAX), Wimax (worldwide interoperability for microwave access), HSDPA (high-speed downlink packet access) etc.
Short range communication module 114 is the modules for supporting junction service.Some examples of short-range communication technology comprise bluetooth
tM, radio-frequency (RF) identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybee
tMetc..
Positional information module 115 is the modules of positional information for checking or obtain mobile terminal.The typical case of positional information module is GPS (global positioning system).According to current technology, GPS module 115 calculates from the range information of three or more satellite and correct time information and for the Information application triangulation calculated, thus calculates three-dimensional current location information according to longitude, latitude and pin-point accuracy.Current, the method for calculating location and temporal information uses three satellites and by the error of the position that uses an other satellite correction calculation to go out and temporal information.In addition, GPS module 115 can carry out computational speed information by Continuous plus current location information in real time.
A/V input unit 120 is for audio reception or vision signal.A/V input unit 120 can comprise camera 121 and microphone 1220, and the view data of camera 121 to the static images obtained by image capture apparatus in Video Capture pattern or image capture mode or video processes.Picture frame after process may be displayed on display unit 151.Picture frame after camera 121 processes can be stored in memory 160 (or other storage medium) or via wireless communication unit 110 and send, and can provide two or more cameras 1210 according to the structure of mobile terminal.Such acoustic processing can via microphones sound (voice data) in telephone calling model, logging mode, speech recognition mode etc. operational mode, and can be voice data by microphone 122.Audio frequency (voice) data after process can be converted to the formatted output that can be sent to mobile communication base station via mobile communication module 112 when telephone calling model.Microphone 122 can be implemented various types of noise and eliminate (or suppress) algorithm and receiving and sending to eliminate (or suppression) noise or interference that produce in the process of audio signal.
User input unit 130 can generate key input data to control the various operations of mobile terminal according to the order of user's input.User input unit 130 allows user to input various types of information, and keyboard, the young sheet of pot, touch pad (such as, detecting the touch-sensitive assembly of the change of the resistance, pressure, electric capacity etc. that cause owing to being touched), roller, rocking bar etc. can be comprised.Especially, when touch pad is superimposed upon on display unit 151 as a layer, touch-screen can be formed.
Sensing cell 140 detects the current state of mobile terminal 100, (such as, mobile terminal 100 open or close state), the position of mobile terminal 100, user for mobile terminal 100 contact (namely, touch input) presence or absence, the orientation of mobile terminal 100, the acceleration or deceleration of mobile terminal 100 move and direction etc., and generate order or the signal of the operation for controlling mobile terminal 100.Such as, when mobile terminal 100 is embodied as sliding-type mobile phone, sensing cell 140 can sense this sliding-type phone and open or close.In addition, whether whether sensing cell 140 can detect power subsystem 190 provides electric power or interface unit 170 to couple with external device (ED).Sensing cell 140 can comprise proximity transducer 1410 and will be described this in conjunction with touch-screen below.
Interface unit 170 is used as at least one external device (ED) and is connected the interface that can pass through with mobile terminal 100.Such as, external device (ED) can comprise wired or wireless head-band earphone port, external power source (or battery charger) port, wired or wireless FPDP, memory card port, for connecting the port, audio frequency I/O (I/O) port, video i/o port, ear port etc. of the device with identification module.Identification module can be that storage uses the various information of mobile terminal 100 for authentication of users and can comprise subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) etc.In addition, the device (hereinafter referred to " recognition device ") with identification module can take the form of smart card, and therefore, recognition device can be connected with mobile terminal 100 via port or other jockey.Interface unit 170 may be used for receive from external device (ED) input (such as, data message, electric power etc.) and the input received be transferred to the one or more element in mobile terminal 100 or may be used for transmitting data between mobile terminal and external device (ED).
In addition, when mobile terminal 100 is connected with external base, interface unit 170 can be used as to allow by it electric power to be provided to the path of mobile terminal 100 from base or can be used as the path that allows to be transferred to mobile terminal by it from the various command signals of base input.The various command signal inputted from base or electric power can be used as and identify whether mobile terminal is arranged on the signal base exactly.Output unit 150 is constructed to provide output signal (such as, audio signal, vision signal, alarm signal, vibration signal etc.) with vision, audio frequency and/or tactile manner.Output unit 150 can comprise display unit 151, dio Output Modules 152, alarm unit 153 etc.
Display unit 151 may be displayed on the information of process in mobile terminal 100.Such as, when mobile terminal 100 is in telephone calling model, display unit 151 can show with call or other communicate (such as, text messaging, multimedia file are downloaded etc.) be correlated with user interface (UI) or graphic user interface (GUI).When mobile terminal 100 is in video calling pattern or image capture mode, display unit 151 can the image of display capture and/or the image of reception, UI or GUI that video or image and correlation function are shown etc.
Meanwhile, when display unit 151 and touch pad as a layer superposed on one another to form touch-screen time, display unit 151 can be used as input unit and output device.Display unit 151 can comprise at least one in liquid crystal display (LCD), thin-film transistor LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc.Some in these displays can be constructed to transparence and watch from outside to allow user, and this can be called transparent display, and typical transparent display can be such as TOLED (transparent organic light emitting diode) display etc.According to the specific execution mode wanted, mobile terminal 100 can comprise two or more display units (or other display unit), such as, mobile terminal can comprise 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 and inputs area.
When dio Output Modules 152 can be under the isotypes such as call signal receiving mode, call mode, logging mode, speech recognition mode, broadcast reception mode at mobile terminal, voice data convert audio signals that is that wireless communication unit 110 is received or that store in memory 160 and exporting as sound.And dio Output Modules 152 can provide the audio frequency relevant to the specific function that mobile terminal 100 performs to export (such as, call signal receives sound, message sink sound etc.).Dio Output Modules 152 can comprise loud speaker, buzzer etc.
Alarm unit 153 can provide and export that event informed to mobile terminal 100.Typical event can comprise calling reception, message sink, key signals input, touch input etc.Except audio or video exports, alarm unit 153 can provide in a different manner and export with the generation of notification event.Such as, alarm unit 153 can provide output with the form of vibration, when receive calling, message or some other enter communication (incomingcommunication) time, alarm unit 153 can provide sense of touch to export (that is, vibrating) to notify to user.By providing such sense of touch to export, even if when the mobile phone of user is in the pocket of user, user also can identify the generation of various event.Alarm unit 153 also can provide the output of the generation of notification event via display unit 151 or dio Output Modules 152.
Memory 160 software program that can store process and the control operation performed by controller 180 etc., or temporarily can store oneself through exporting the data (such as, telephone directory, message, still image, video etc.) that maybe will export.And, memory 160 can store about when touch be applied to touch-screen time the vibration of various modes that exports and the data of audio signal.
Memory 160 can comprise the storage medium of at least one type, described storage medium comprises flash memory, hard disk, multimedia card, card-type memory (such as, SD or DX memory etc.), random access storage device (RAM), static random-access memory (SRAM), read-only memory (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory (PROM), magnetic storage, disk, CD etc.And mobile terminal 100 can be connected the memory function of execute store 160 network storage device with by network cooperates.
Controller 180 controls the overall operation of mobile terminal usually.Such as, controller 180 performs the control relevant to voice call, data communication, video calling etc. and process.In addition, controller 180 can comprise the multi-media module 1810 for reproducing (or playback) multi-medium data, and multi-media module 1810 can be configured in controller 180, or can be configured to be separated with controller 180.Controller 180 can pattern recognition process, is identified as character or image so that input is drawn in the handwriting input performed on the touchscreen or picture.
Power subsystem 190 receives external power or internal power and provides each element of operation and the suitable electric power needed for assembly under the control of controller 180.
Various execution mode described herein can to use such as computer software, the computer-readable medium of hardware or its any combination implements.For hardware implementation, execution mode described herein can by using application-specific IC (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, being designed at least one performed in the electronic unit of function described herein and implementing, in some cases, such execution mode can be implemented in controller 180.For implement software, the execution mode of such as process or function can be implemented with allowing the independent software module performing at least one function or operation.Software code can be implemented by the software application (or program) write with any suitable programming language, and software code can be stored in memory 160 and to be performed by controller 180.
So far, oneself is through the mobile terminal according to its functional description.Below, for the sake of brevity, by the slide type mobile terminal that describes in various types of mobile terminals of such as folded form, board-type, oscillating-type, slide type mobile terminal etc. exemplarily.Therefore, the present invention can be applied to the mobile terminal of any type, and is not limited to slide type mobile terminal.
Mobile terminal 100 as shown in Figure 1 can be constructed to utilize and send the such as wired and wireless communication system of data via frame or grouping and satellite-based communication system operates.
Describe wherein according to the communication system that mobile terminal of the present invention can operate referring now to Fig. 2.
Such communication system can use different air interfaces and/or physical layer.Such as, the air interface used by communication system comprises such as frequency division multiple access (FDMA), time division multiple access (TDMA), code division multiple access (CDMA) and universal mobile telecommunications system (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc.As non-limiting example, description below relates to cdma communication system, but such instruction is equally applicable to the system of other type.
With reference to figure 2, cdma wireless communication system can comprise multiple mobile terminal 100, multiple base station (BS) 270, base station controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is constructed to form interface with Public Switched Telephony Network (PSTN) 290.MSC280 is also constructed to form interface with the BSC275 that can be couple to base station 270 via back haul link.Back haul link can construct according to any one in some interfaces that oneself knows, described interface comprises such as E1/T1, ATM, IP, PPP, frame relay, HDSL, ADSL or xDSL.Will be appreciated that system as shown in Figure 2 can comprise multiple BSC2750.
Each BS270 can serve one or more subregion (or region), by multidirectional antenna or point to specific direction each subregion of antenna cover radially away from BS270.Or each subregion can by two or more antenna covers for diversity reception.Each BS270 can be constructed to support multiple parallel compensate, and each parallel compensate has specific frequency spectrum (such as, 1.25MHz, 5MHz etc.).
Subregion can be called as CDMA Channel with intersecting of parallel compensate.BS270 also can be called as base station transceiver subsystem (BTS) or other equivalent terms.Under these circumstances, term " base station " may be used for broadly representing single BSC275 and at least one BS270.Base station also can be called as " cellular station ".Or each subregion of particular B S270 can be called as multiple cellular station.
As shown in Figure 2, broadcast singal is sent to the mobile terminal 100 at operate within systems by broadcsting transmitter (BT) 295.Broadcast reception module 111 as shown in Figure 1 is arranged on mobile terminal 100 and sentences the broadcast singal receiving and sent by BT295.In fig. 2, several global positioning system (GPS) satellite 300 is shown.Satellite 300 helps at least one in the multiple mobile terminal 100 in location.
In fig. 2, depict multiple satellite 300, but understand, the satellite of any number can be utilized to obtain useful locating information.GPS module 115 as shown in Figure 1 is constructed to coordinate to obtain the locating information wanted with satellite 300 usually.Substitute GPS tracking technique or outside GPS tracking technique, can use can other technology of position of tracking mobile terminal.In addition, at least one gps satellite 300 optionally or extraly can process satellite dmb transmission.
As a typical operation of wireless communication system, BS270 receives the reverse link signal from various mobile terminal 100.Mobile terminal 100 participates in call usually, information receiving and transmitting communicates with other type.Each reverse link signal that certain base station 270 receives is processed by particular B S270.The data obtained are forwarded to relevant BSC275.BSC provides call Resourse Distribute and comprises the mobile management function of coordination of the soft switching process between BS270.The data received also are routed to MSC280 by BSC275, and it is provided for the extra route service forming interface with PSTN290.Similarly, PSTN290 and MSC280 forms interface, and MSC and BSC275 forms interface, and BSC275 correspondingly control BS270 so that forward link signals is sent to mobile terminal 100.
Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the inventive method is proposed.
As shown in Figure 3, first embodiment of the invention proposes a kind of parfocal method in school, comprising:
Step 300, the position of removable camera lens when being the object focus of focal length in focus correction instruction according to the focus correction instruction distance obtained between camera pair and camera from user.
In this step, user can send focus correction instruction by touch-screen etc., and specific implementation belongs to the known technology of those skilled in the art.
In this step, when being the object focus of focal length in focus correction instruction according to the focus correction instruction distance obtained between camera pair and camera from user, the position of removable camera lens comprises:
Respectively removable camera lens is placed in different positions, obtains the preview frame data of diverse location place object; The position of the removable camera lens that the preview frame data that in each preview frame data that acquisition obtains, the sharp keen degree of object edge is maximum are corresponding.
Wherein, the preview frame data specifically how obtaining diverse location place object belong to the known technology of those skilled in the art, and the protection range be not intended to limit the present invention, repeats no more here.
Wherein, the sharp keen degree specifically how obtaining the object edge of each preview frame data belongs to the known technology of those skilled in the art, and the protection range be not intended to limit the present invention, repeats no more here.
Wherein, can carry out control step motor by software and removable camera lens is placed in different positions, specific implementation belongs to the known technology of those skilled in the art, and the protection range be not intended to limit the present invention, repeats no more here.
In this step, when focus refers to and takes pictures, subject blur-free imaging.As shown in Figure 4, camera is when focus, and imageing sensor is just in time positioned in clear image planes; And when camera is out of focus, imageing sensor departs from clear image planes.
In this step, removable camera lens belongs to a part for camera, and other parts of camera belong to non-removable camera lens.That is, camera only has a wherein part to move, and this depends on the design of camera.
Corresponding relation between the position of the focal length in step 301, preservation focus correction instruction and the removable camera lens of acquisition.
In this step, corresponding relation can be saved in non-erasable subregion.
Wherein, non-erasable subregion refers to data once write, in any case subsequent movement terminal use resets or to write with a brush dipped in Chinese ink version all unaffected.For Android (Android) system, non-erasable subregion is generally persist subregion.
By the solution of the present invention, during by obtaining focus removable camera lens position and preserve and correct the focus of camera, thus solve user in the inaccurate phenomenon of the focusing carrying out occurring in manual focus process.
That is, user can realize focusing one by one to the position of removable camera lens during different focal lengths acquisition focus, thus the phenomenon that solution user is forbidden in the focusing carrying out occurring in manual focus process.
Further, when receiving the manual focus instruction from user, the method also comprises:
The position of removable camera lens corresponding to focal length in manual focus instruction is searched in corresponding relation; Obtain the current location of removable camera lens; Focus according to the current location of the removable camera lens obtained, the position of removable camera lens that finds.
Wherein, when searching the position less than removable camera lens corresponding to the focal length in manual focus instruction, the position of removable camera lens corresponding to two focal lengths minimum with the absolute value of the difference of the focal length in manual focus instruction can be searched, carrying out to the position of two removable camera lenses obtained the position that linear interpolation obtains removable camera lens corresponding to focal length in manual focus instruction, focuses in the position of the removable camera lens obtained according to the current location of the removable camera lens obtained, interpolation.
Wherein, the current location specifically how obtaining removable camera lens belongs to the known technology of those skilled in the art, and the protection range be not intended to limit the present invention, repeats no more here.
Wherein, specifically how carry out focusing belong to the known technology of those skilled in the art according to the current location of the removable camera lens obtained, the position of removable camera lens that finds, the protection range be not intended to limit the present invention, repeats no more here.
See Fig. 5, the present invention further provides the parfocal device in a kind of school, at least comprise:
Acquisition module, the position of removable camera lens during for being the object focus of focal length in focus correction instruction according to the focus correction instruction distance obtained between camera pair and camera from user;
Memory module, for preserve the removable camera lens of focal length in focus correction instruction and acquisition position between corresponding relation.
Wherein, receiver module can arrange in user input unit 130 in FIG, and acquisition module can arrange in controller 180 in FIG, and memory module can be arranged in memory 160 in FIG.
In device of the present invention, acquisition module specifically for:
Respectively removable camera lens is placed in different positions, obtains the preview frame data of diverse location place object;
The position of the removable camera lens that the preview frame data that in each preview frame data that acquisition obtains, the sharp keen degree of object edge is maximum are corresponding.
In device of the present invention, memory module specifically for:
Corresponding relation is saved in non-erasable subregion.
Corresponding relation is saved in non-erasable subregion.
In device of the present invention, also comprise:
Receiver module, for receiving the manual focus instruction from user;
Search module, for searching the position of removable camera lens corresponding to focal length in manual focus instruction in corresponding relation;
Acquisition module is also for the current location that obtains removable camera lens;
Also comprise:
Focusing module, focuses for the current location according to the removable camera lens obtained, the position of removable camera lens that finds.
Wherein, module is searched and Focusing module can be arranged in controller 180 in FIG.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or device and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or device.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the device comprising this key element and also there is other identical element.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that above-described embodiment method can add required general hardware platform by software and realize, hardware can certainly be passed through, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium (as ROM/RAM, magnetic disc, CD), comprising some instructions in order to make a station terminal equipment (can be mobile phone, computer, server, air conditioner, or the network equipment etc.) perform method described in each embodiment of the present invention.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. the parfocal method in school, is characterized in that, comprising:
The position of removable camera lens when being the object focus of focal length in focus correction instruction according to the focus correction instruction distance obtained between camera pair and camera from user;
Corresponding relation between the position of the focal length in preservation focus correction instruction and the removable camera lens of acquisition.
2. method according to claim 1, is characterized in that, when described basis is the object focus of focal length in focus correction instruction from the focus correction instruction distance obtained between camera pair and camera of user, the position of removable camera lens comprises:
Respectively described removable camera lens is placed in different positions, obtains the preview frame data of object described in diverse location place;
The position of the described removable camera lens that the preview frame data that described in each preview frame data that acquisition obtains, the sharp keen degree of object edge is maximum are corresponding.
3. method according to claim 1, is characterized in that, described corresponding relation is saved in non-erasable subregion.
4. the method according to claim 1 or 2 or 3, is characterized in that, when receiving the manual focus instruction from described user, the method also comprises:
The position of removable camera lens corresponding to focal length in described manual focus instruction is searched in described corresponding relation;
Obtain the current location of described removable camera lens;
Focus according to the current location of the removable camera lens obtained, the position of removable camera lens that finds.
5. the parfocal device in school, is characterized in that, at least comprise:
Acquisition module, the position of removable camera lens during for being the object focus of focal length in focus correction instruction according to the focus correction instruction distance obtained between camera pair and camera from user;
Memory module, for preserve the removable camera lens of focal length in focus correction instruction and acquisition position between corresponding relation.
6. device according to claim 5, is characterized in that, described acquisition module specifically for:
Respectively described removable camera lens is placed in different positions, obtains the preview frame data of object described in diverse location place;
The position of the removable camera lens that the preview frame data that described in each preview frame data that acquisition obtains, the sharp keen degree of object edge is maximum are corresponding.
7. device according to claim 5, is characterized in that, described memory module specifically for:
Described corresponding relation is saved in non-erasable subregion.
8. the device according to claim 5 or 6 or 7, is characterized in that, also comprise:
Receiver module, for receiving the manual focus instruction from described user;
Search module, for searching the position of removable camera lens corresponding to focal length in described manual focus instruction in described corresponding relation;
Described acquisition module is also for the current location that obtains described removable camera lens;
Also comprise:
Focusing module, focuses for the current location according to the removable camera lens obtained, the position of removable camera lens that finds.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510644142.6A CN105208279B (en) | 2015-09-30 | 2015-09-30 | A kind of parfocal method and apparatus in school |
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| CN105208279B CN105208279B (en) | 2019-05-21 |
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| WO (1) | WO2017054752A1 (en) |
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| WO2017054752A1 (en) * | 2015-09-30 | 2017-04-06 | 努比亚技术有限公司 | Method and device for correcting focal point and method and device for implementing focusing |
| CN107948536A (en) * | 2018-01-03 | 2018-04-20 | 上海传英信息技术有限公司 | A kind of dynamic calibration manual focus method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105208279B (en) | 2019-05-21 |
| WO2017054752A1 (en) | 2017-04-06 |
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