CN104333704A - Photographing scene previewing method, photographing scene previewing device and terminal - Google Patents

Photographing scene previewing method, photographing scene previewing device and terminal Download PDF

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Publication number
CN104333704A
CN104333704A CN201410712739.5A CN201410712739A CN104333704A CN 104333704 A CN104333704 A CN 104333704A CN 201410712739 A CN201410712739 A CN 201410712739A CN 104333704 A CN104333704 A CN 104333704A
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China
Prior art keywords
camera
current scene
scene
terminal
pictures
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CN201410712739.5A
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CN104333704B (en
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孙剑波
张弓
蓝和
张学勇
韦怡
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Abstract

The invention belongs to the field of terminal technology and provides a photographing scene previewing method, a photographing scene previewing device and a terminal. The previewing method comprises the following steps: starting a first camera and a second camera, wherein the first camera and the second camera are adjacent and are positioned on the same shooting plane; triggering the first camera to take a picture of the current scene when detecting a shutter command; and outputting a picture of the current scene, imaged by the second camera, to a terminal display screen in real time to be used as a previewed image while taking a picture of the current scene by the first camera. According to the photographing scene previewing method, the photographing scene previewing device and the terminal, one camera is used for carrying out the photographing action, the other camera is used for generating the real-time image of the photographing scene synchronously, displaying in a display screen of the terminal used as a previewed image and overcoming the defect that single camera cannot output the previewed image during exposure.

Description

A kind of method for previewing of scene of taking pictures, device and terminal
Technical field
The invention belongs to terminal technology, particularly relate to a kind of method for previewing of scene of taking pictures, device and terminal.
Background technology
At present, camera function has become one of essential basic function of the consumer electronics products such as mobile phone, and user has got used to utilizing mobile phone record whenever and wherever possible and sharing life image, the enjoyment of living and bringing of enjoying digital life.
When user by mobile phone at insufficient light take pictures time, in order to ensure the brightness of photo, usually, need by prolonging exposure time to increase the exposure of photo, time for exposure can extend to a few minutes even dozens of minutes not etc., in the process, camera cannot image output, therefore, user cannot realize taking pictures by mobile phone display screen the live preview of scene.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of method for previewing of scene of taking pictures, device and terminal, be intended to solve at present in the process of mobile phone photograph exposure user cannot carry out the problem of live preview to scene of taking pictures.
First aspect, provides a kind of method for previewing of scene of taking pictures, comprising: start the first camera and second camera, and described first camera is adjacent with described second camera and be positioned at same camera plane; When shutter instruction being detected, triggering described first camera and current scene is taken pictures; While described first camera is taken pictures to current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal, in real time as preview screen.
In the first possible implementation of first aspect, described method also comprises: while described first camera is taken pictures to current scene, the current exposure time of the first camera described in Overlapping display in described preview screen.
In the implementation that the second of first aspect is possible, the resolution of described first camera is higher than the resolution of described second camera.
In the third possible implementation of first aspect, it is described while described first camera is taken pictures to current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal in real time, comprise as preview screen: when described first camera starts to take pictures to described current scene, start the timing of the current exposure time to described first camera; Exceeded preset duration when the time of described timing, and described first camera is still when taking pictures to described current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal, in real time as preview screen.
In the 4th kind of possible implementation of first aspect, described method also comprises: termination photographing instruction detected, stops the take pictures action of described first camera to described current scene.
Second aspect, provides a kind of pre-viewing device of scene of taking pictures, comprising: start unit, and for starting the first camera and second camera, described first camera is adjacent with described second camera and be positioned at same camera plane; Photographing unit, for when shutter instruction being detected, triggering described first camera and taking pictures to current scene; Preview unit, while taking pictures to current scene at described first camera, exports in the display screen of terminal, as preview screen in real time by the picture of the described current scene of described second camera imaging.
In the first possible implementation of second aspect, described device also comprises: display unit, while current scene being taken pictures at described first camera, and the current exposure time of the first camera described in Overlapping display in described preview screen.
In the implementation that the second of second aspect is possible, the resolution of described first camera is higher than the resolution of described second camera.
In the third possible implementation of second aspect, described preview unit comprises: timing subelement, for when described first camera starts to take pictures to described current scene, starts the timing of the current exposure time to described first camera; Export subelement, preset duration has been exceeded for the time when described timing, and described first camera is still when taking pictures to described current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal, in real time as preview screen.
In the 4th kind of possible implementation of second aspect, described device also comprises: stopping unit, for termination photographing instruction being detected, stopping the take pictures action of described first camera to described current scene.
The third aspect, provides a kind of terminal, and described terminal comprises the pre-viewing device of scene of taking pictures as above.
In the first possible implementation of the third aspect, described terminal comprises smart mobile phone or flat board.
The embodiment of the present invention performs by a camera action of taking pictures, the real-time pictures of scene of taking pictures synchronously is generated by another camera, and be presented in the display screen of terminal as preview screen, overcome the defect that single camera cannot export preview screen in exposure process.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the method for previewing of the scene of taking pictures that the embodiment of the present invention provides;
Fig. 2 is the position exemplary plot of the first camera of providing of the embodiment of the present invention and second camera;
Fig. 3 is the realization flow figure of the method for previewing of the scene of taking pictures that another embodiment of the present invention provides;
Fig. 4 is the preview screen schematic diagram of the display screen of the terminal that the embodiment of the present invention provides;
Fig. 5 is the specific implementation flow chart of the method for previewing S103 of the scene of taking pictures that the embodiment of the present invention provides;
Fig. 6 is the realization flow figure of the method for previewing of the scene of taking pictures that another embodiment of the present invention provides;
Fig. 7 is the structured flowchart of the pre-viewing device of the scene of taking pictures that the embodiment of the present invention provides;
Fig. 8 is the block diagram of the part-structure of the mobile phone relevant to the terminal that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Method for previewing and the device of scene that what the embodiment of the present invention provided take pictures can be applied in the terminal equipment being integrated with camera and display screen, comprise smart mobile phone, flat board, palmtop PC (Personal Digital Assistant, PDA), camera, etc., wherein, camera in terminal is taken pictures for realization, camera function, and display screen is for realizing the preview function to scene of taking pictures, namely, by showing in real time the picture of the current income of camera, make user can preview to real-time scene of taking pictures.
Fig. 1 shows the realization flow of the method for previewing of the scene of taking pictures that the embodiment of the present invention provides, and details are as follows:
In S101, start the first camera and second camera, described first camera is adjacent with described second camera and be positioned at same camera plane.
In the present embodiment, terminal is configured with simultaneously two cameras, wherein, first camera and second camera are adjacent, the camera be positioned in same camera plane, the position relationship demand fulfillment of the two: two cameras are substantially identical to the distance of object, and two cameras are substantially identical relative to the shooting angle of object, described substantially identical, namely the difference of described distance or described shooting angle is little of negligible, based on above-mentioned position relationship, it is basically identical that two cameras take for same subject the photo come.Fig. 2, as a kind of realization example, shows the first camera 21 and second camera 22 and is configured in a kind of specific implementation on mobile phone 23.
In the present embodiment, the process of the operating system of terminal is monitored, when listening to " camera " application program in operating system and being invoked into front stage operation, start the first camera and the second camera of terminal simultaneously.
In S102, when shutter instruction being detected, triggering described first camera and current scene is taken pictures.
In the present embodiment, the mode that sends of described shutter instruction includes but not limited to following several: send shutter instruction by pressing terminals physical button, correspondingly, need whether UNICOM determines assigning of shutter instruction by detecting the circuit be connected with this physical button; Or send shutter instruction by the virtual key pressed on terminal touch screen, correspondingly, whether assigning of shutter instruction is determined in conducting to need the circuit by detecting this virtual key place screen area; Or, send shutter instruction by voice mode, correspondingly, need to receive speech data by the microphone apparatus of terminal, and analyze this speech data, determine assigning of shutter instruction.
When shutter instruction is assigned, the scene of one of them camera to its current imaging triggered in dual camera is taken pictures.
In S103, while described first camera is taken pictures to current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal, in real time as preview screen.
When the first camera is taken pictures to current scene, because the first camera is in exposure process, its cannot output image on the display screen of terminal, terminal display screen can only show black picture, therefore, synchronously imaging is carried out to identical scene by second camera, and the picture of its imaging is exported in the display screen of terminal in real time, make terminal display screen in the process of the first camera exposure image, also can demonstrate the realtime graphic of scene of taking pictures.Particularly, the picture that second camera photographs generates optical imagery by its camera lens, project again on transducer, then optical imagery is converted into the signal of telecommunication, the signal of telecommunication becomes digital signal through analog-to-digital conversion again, and digital signal through DSP processing process, then is sent in terminal handler and processes, finally export on the display screen of terminal, become the live preview picture that user can see.
By embodiment illustrated in fig. 1, a camera performs and takes pictures in the process of action wherein, the real-time pictures of scene of taking pictures synchronously is generated by another camera, and be presented in the display screen of terminal as preview screen, make user in the process of camera exposure image, also can observe the various details of scene of taking pictures in real time.Especially, in dark thus under the shooting condition causing time for exposure longer (may reach a few minutes to dozens of minutes), the preview scheme of above-mentioned scene of taking pictures can help user to observe to take pictures in exposure process scene whether to occur exception well.Such as, the time for exposure required for night scene that shooting light is bright is 3 minutes, in the process, if there is the people of movement in scene of taking pictures, because the time for exposure is long, so in the final photo exported, there will be long portrait smear, cause photo to cancel, and consume time and system energy consumption in vain, utilize embodiment illustrated in fig. 1, user can the Timeliness coverage exception of taking pictures in scene, and stops shooting as soon as possible, avoids the waste of time and system energy consumption, resource.
As one embodiment of the present of invention, as shown in Figure 3, described method also comprises:
S104, while described first camera is taken pictures to current scene, the current exposure time of the first camera described in Overlapping display in described preview screen.
The present embodiment can quantize the exposure process of taking pictures, and contributes to user and recognizes current process of taking pictures better, understand exposure time parameter in real time.Fig. 4 shows a kind of concrete implementation superposing current exposure time in preview screen, as shown in Figure 4, time for exposure dynamically can be superimposed upon the borderline region of display screen, not affecting while user observes preview screen details, serves the effect pointing out current exposure process of taking pictures.
Due in embodiments of the present invention, the first camera has been responsible for the action of taking pictures to current scene, and second camera is responsible for the preview screen generating current scene, and therefore, each camera is also different to respective frame resolution requirement.As one embodiment of the present of invention, the resolution of described first camera is higher than the resolution of described second camera.
Described resolution, for characterizing the definition of the photo that camera is shot, the resolution of camera is higher, then its photo shot or video more clear.Because second camera is only for the generation of preview screen, and the display screen of terminal only has four or five inches of sizes usually, and common resolution has been enough to the preview demand meeting user, and therefore, the requirement of second camera to resolution is lower.And the first camera needs responsible final imaging, can be that the first camera configures higher resolution.Therefore, in the present embodiment, the resolution of the first camera of configuration is higher than the resolution of second camera, so, carry out in the process of preview screen generation at second camera, the resolution of the image of generation is low, and the effect brought is that image processor needs data to be processed also relatively less when the contrast value of computed image, effectively can reduce the power consumption of image processor, reach energy-conservation effect.
As one embodiment of the present of invention, can according to the length of time for exposure in actual process of taking pictures, determine whether that enabling second camera generates preview screen, as shown in Figure 5, S103 is specially:
In S501, when described first camera starts to take pictures to described current scene, start the timing of the current exposure time to described first camera.
In S502, preset duration has been exceeded when the time of described timing, and described first camera is still when taking pictures to described current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal, in real time as preview screen.
In the present embodiment, using preset duration as determining whether to enable the threshold value that second camera generates preview screen, if the time of the first camera exposure has exceeded this preset duration, then show that current first camera is carrying out growing exposure, so enable second camera and generate preview screen, be convenient to the details that user observes picture of taking pictures in long exposure process; If the first camera has just been taken pictures complete within the time not arriving this preset duration, then show that the photo of the first camera current shooting is without the need to exposing through long, if show preview screen so during this period to have little significance in terminal display screen, so no longer show the preview screen that second camera shooting generates, thus effectively save system resource.
As a realization example of the present invention, preset duration can be set to 5 seconds.
As one embodiment of the present of invention, as shown in Figure 6, after S103, described method also comprises:
S105, detects termination photographing instruction, stops the take pictures action of described first camera to described current scene.
In the present embodiment, in the first camera completes the exposure process before taking pictures, once user observes out by the preview screen that second camera generates scene of taking pictures occurred exception, such as, the plane of terminal or support terminal there occurs shake, or in scene of taking pictures, occurred that object beyong contemplation moves, then user can send termination photographing instruction at any time, after this termination photographing instruction being detected, stop the action of taking pictures that the first camera is current immediately, exit screening-mode, start as soon as possible to facilitate user to take pictures next time, avoid the waste of time and system resource.
The embodiment of the present invention performs by a camera action of taking pictures, the real-time pictures of scene of taking pictures synchronously is generated by another camera, and be presented in the display screen of terminal as preview screen, overcome the defect that single camera cannot export preview screen in exposure process, make user in the process of camera exposure image, also can observe the various details of scene of taking pictures in real time, Timeliness coverage is taken pictures the exception in scene, and stop shooting as soon as possible, avoid the waste of time and system energy consumption, resource.
Should be understood that in embodiments of the present invention, the size of the sequence number of above-mentioned each process does not also mean that the priority of execution sequence, and the execution sequence of each process should be determined with its function and internal logic, and should not form any restriction to the implementation process of the embodiment of the present invention.
Corresponding to the method for previewing of the scene of taking pictures that the embodiment of the present invention provides, Fig. 7 shows the structured flowchart of the pre-viewing device of the scene of taking pictures that the embodiment of the present invention provides, this device can run on be integrated with camera and display screen terminal equipment among, such as smart mobile phone, flat board, PDA, camera, etc.For convenience of explanation, illustrate only part related to the present embodiment.
With reference to Fig. 7, this device comprises:
Start unit 71, starts the first camera and second camera, and described first camera is adjacent with described second camera and be positioned at same camera plane.
Photographing unit 72, when shutter instruction being detected, triggering described first camera and taking pictures to current scene.
Preview unit 73, while described first camera is taken pictures to current scene, exports in the display screen of terminal, as preview screen in real time by the picture of the described current scene of described second camera imaging.
Alternatively, described device also comprises:
Display unit, while current scene being taken pictures at described first camera, the current exposure time of the first camera described in Overlapping display in described preview screen.
Alternatively, the resolution of described first camera is higher than the resolution of described second camera.
Alternatively, described preview unit 73 comprises:
Timing subelement, when described first camera starts to take pictures to described current scene, starts the timing of the current exposure time to described first camera.
Export subelement, preset duration has been exceeded when the time of described timing, and described first camera is still when taking pictures to described current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal, in real time as preview screen.
Alternatively, described device also comprises:
Stop unit, termination photographing instruction detected, stop the take pictures action of described first camera to described current scene.
Shown in Fig. 8 is the block diagram of the part-structure of the mobile phone relevant to the terminal that the embodiment of the present invention provides.With reference to figure 8, mobile phone comprises: the parts such as radio frequency (Radio Frequency, RF) circuit 810, memory 820, input unit 830, display unit 840, first camera 850, second camera 860 and processor 870.It will be understood by those skilled in the art that the handset structure shown in Fig. 8 does not form the restriction to mobile phone, the parts more more or less than diagram can be comprised, or combine some parts, or different parts are arranged.
Concrete introduction is carried out below in conjunction with Fig. 8 each component parts to mobile phone:
RF circuit 810 can be used for receiving and sending messages or in communication process, the reception of signal and transmission, especially, after being received by the downlink information of base station, process to processor 870; In addition, the up data of design are sent to base station.Usually, RF circuit includes but not limited to antenna, at least one amplifier, transceiver, coupler, low noise amplifier (Low Noise Amplifier, LNA), duplexer etc.In addition, RF circuit 810 can also by radio communication and network and other devices communicatings.Above-mentioned radio communication can use arbitrary communication standard or agreement, include but not limited to global system for mobile communications (Global System of Mobile communication, GSM), general packet radio service (General Packet Radio Service, GPRS), code division multiple access (Code Division Multiple Access, CDMA), Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA), Long Term Evolution (Long Term Evolution, LTE)), Email, Short Message Service (Short Messaging Service, SMS) etc.
Memory 820 can be used for storing software program and module, and processor 870 is stored in software program and the module of memory 820 by running, thus performs various function application and the data processing of mobile phone.Memory 820 mainly can comprise storage program district and store data field, and wherein, storage program district can storage operation system, application program (such as sound-playing function, image player function etc.) etc. needed at least one function; Store data field and can store the data (such as voice data, phone directory etc.) etc. created according to the use of mobile phone.In addition, memory 820 can comprise high-speed random access memory, can also comprise nonvolatile memory, such as at least one disk memory, flush memory device or other volatile solid-state parts.
Input unit 830 can be used for the numeral or the character information that receive input, and generation arranges with the user of mobile phone 800 and function controls the input of relevant key signals.Particularly, input unit 830 can comprise contact panel 831 and other input equipments 832.Contact panel 831, also referred to as touch-screen, user can be collected or neighbouring touch operation (such as user uses any applicable object or the operations of annex on contact panel 831 or near contact panel 831 such as finger, stylus) thereon, and drive corresponding jockey according to the formula preset.Optionally, contact panel 831 can comprise touch detecting apparatus and touch controller two parts.Wherein, touch detecting apparatus detects the touch orientation of user, and detects the signal that touch operation brings, and sends signal to touch controller; Touch controller receives touch information from touch detecting apparatus, and converts it to contact coordinate, then gives processor 870, and the order that energy receiving processor 870 is sent also is performed.In addition, the polytypes such as resistance-type, condenser type, infrared ray and surface acoustic wave can be adopted to realize contact panel 831.Except contact panel 831, input unit 830 can also comprise other input equipments 832.Particularly, other input equipments 832 can include but not limited to one or more in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc.
Display unit 840 can be used for the various menus showing information or the information being supplied to user and the mobile phone inputted by user.Display unit 840 can comprise display screen 841, optionally, the form such as liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) can be adopted to configure display screen 841.Further, contact panel 831 can cover display screen 841, when contact panel 831 detects thereon or after neighbouring touch operation, send processor 870 to determine the type of touch event, on display screen 841, provide corresponding vision to export with preprocessor 870 according to the type of touch event.Although in fig. 8, contact panel 831 and display screen 841 be as two independently parts to realize input and the input function of mobile phone, but in certain embodiments, can by integrated to contact panel 831 and display screen 841 and realize the input and output function of mobile phone.
Processor 870 is control centres of mobile phone, utilize the various piece of various interface and the whole mobile phone of connection, software program in memory 820 and/or module is stored in by running or performing, and call the data be stored in memory 820, perform various function and the deal with data of mobile phone, thus integral monitoring is carried out to mobile phone.Optionally, processor 870 can comprise one or more processing unit; Preferably, processor 870 accessible site application processor and modem processor, wherein, application processor mainly processes operating system, user interface and application program etc., and modem processor mainly processes radio communication.Be understandable that, above-mentioned modem processor also can not be integrated in processor 870.
Although not shown, mobile phone 800 can also comprise power supply, wireless module, bluetooth module, voicefrequency circuit, sensor, does not repeat them here.
In embodiments of the present invention, the processor 870 included by this terminal also has following functions: the method for previewing of scene of taking pictures, comprising:
Start the first camera and second camera, described first camera is adjacent with described second camera and be positioned at same camera plane;
When shutter instruction being detected, triggering described first camera and current scene is taken pictures;
While described first camera is taken pictures to current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal, in real time as preview screen.
Further, described method also comprises:
While described first camera is taken pictures to current scene, the current exposure time of the first camera described in Overlapping display in described preview screen.
Further, the resolution of described first camera is higher than the resolution of described second camera.
Further, described while described first camera is taken pictures to current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal in real time, comprises as preview screen:
When described first camera starts to take pictures to described current scene, start the timing of the current exposure time to described first camera;
Exceeded preset duration when the time of described timing, and described first camera is still when taking pictures to described current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal, in real time as preview screen.
Further, described method also comprises:
Termination photographing instruction detected, stop the take pictures action of described first camera to described current scene.
Those of ordinary skill in the art can recognize, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with the combination of electronic hardware or computer software and electronic hardware.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the system of foregoing description, device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that disclosed system, apparatus and method can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.
If described function using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.

Claims (12)

1. a method for previewing for scene of taking pictures, is characterized in that, comprising:
Start the first camera and second camera, described first camera is adjacent with described second camera and be positioned at same camera plane;
When shutter instruction being detected, triggering described first camera and current scene is taken pictures;
While described first camera is taken pictures to current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal, in real time as preview screen.
2. the method for claim 1, is characterized in that, described method also comprises:
While described first camera is taken pictures to current scene, the current exposure time of the first camera described in Overlapping display in described preview screen.
3. the method for claim 1, is characterized in that, the resolution of described first camera is higher than the resolution of described second camera.
4. the method for claim 1, it is characterized in that, described while described first camera is taken pictures to current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal in real time, comprises as preview screen:
When described first camera starts to take pictures to described current scene, start the timing of the current exposure time to described first camera;
Exceeded preset duration when the time of described timing, and described first camera is still when taking pictures to described current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal, in real time as preview screen.
5. the method for claim 1, is characterized in that, described method also comprises:
Termination photographing instruction detected, stop the take pictures action of described first camera to described current scene.
6. a pre-viewing device for scene of taking pictures, is characterized in that, comprising:
Start unit, for starting the first camera and second camera, described first camera is adjacent with described second camera and be positioned at same camera plane;
Photographing unit, for when shutter instruction being detected, triggering described first camera and taking pictures to current scene;
Preview unit, while taking pictures to current scene at described first camera, exports in the display screen of terminal, as preview screen in real time by the picture of the described current scene of described second camera imaging.
7. device as claimed in claim 6, it is characterized in that, described device also comprises:
Display unit, while current scene being taken pictures at described first camera, the current exposure time of the first camera described in Overlapping display in described preview screen.
8. device as claimed in claim 6, is characterized in that, the resolution of described first camera is higher than the resolution of described second camera.
9. device as claimed in claim 6, it is characterized in that, described preview unit comprises:
Timing subelement, for when described first camera starts to take pictures to described current scene, starts the timing of the current exposure time to described first camera;
Export subelement, preset duration has been exceeded for the time when described timing, and described first camera is still when taking pictures to described current scene, the picture of the described current scene of described second camera imaging is exported in the display screen of terminal, in real time as preview screen.
10. device as claimed in claim 1, it is characterized in that, described device also comprises:
Stopping unit, for termination photographing instruction being detected, stopping the take pictures action of described first camera to described current scene.
11. 1 kinds of terminals, is characterized in that, described terminal comprises the pre-viewing device of the scene of taking pictures as described in any one of claim 6 to 10.
12. terminals as claimed in claim 11, it is characterized in that, described terminal comprises smart mobile phone or flat board.
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Cited By (10)

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