CN105763798A - Control method, control apparatus and electronic apparatus - Google Patents
Control method, control apparatus and electronic apparatus Download PDFInfo
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- CN105763798A CN105763798A CN201610115527.8A CN201610115527A CN105763798A CN 105763798 A CN105763798 A CN 105763798A CN 201610115527 A CN201610115527 A CN 201610115527A CN 105763798 A CN105763798 A CN 105763798A
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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 control method for controlling an imaging apparatus which includes a first camera module and a second camera module. The first camera module includes a wide-angle lens, and the second camera module includes a telephoto lens. The control method comprises the steps of detecting whether the object distance of a subject is less than or equal to a predetermined distance; when the object distance is less than or equal to the predetermined distance, controlling the first camera module to focus using a laser focus mode; and when the object distance is greater than the predetermined distance, controlling the second camera module to focus using a passive focus mode. Further, the invention also discloses a control apparatus and an electronic apparatus. The control method, the control apparatus and the electronic apparatus in an embodiment of the invention effectively make up for the respective shortcomings of close-range, long-term and different focus modes in shooting and focusing by detecting the object distance of the subject and controlling the corresponding camera module to focus using the corresponding focus mode, and the user experience is improved.
Description
Technical field
The present invention relates to imaging technique, particularly to a kind of control method, control device and electronic installation.
Background technology
When existing mobile phone is taken pictures for close shot, focusing speed and the angle of visual field are generally not ideal enough, and are often unfavorable for during vista shot that laser focusing and imaging are less.
Summary of the invention
It is contemplated that at least solve one of technical problem of existence in prior art.For this, the present invention needs to provide a kind of control method, control device and electronic installation.
The control method of embodiment of the present invention, for controlling imaging device, described imaging device includes first camera module and second camera module, and described first camera module includes wide-angle lens, described second camera module includes telephoto lens, and described control method comprises the following steps:
Whether the object distance of detection object is less than or equal to preset distance；
Control described first camera module when described object distance is less than or equal to described preset distance and adopt the focusing of laser focal modes；And
Control described second camera module when described object distance is more than described preset distance and adopt the focusing of passive focal modes.
The control device of embodiment of the present invention, for controlling imaging device, described imaging device includes first camera module and second camera module, and described first camera module includes wide-angle lens, described second camera module includes telephoto lens, and described control device includes:
Judge module, whether described judge module is used for the object distance detecting object less than or equal to preset distance；
First controls module, and described first controls module adopts the focusing of laser focal modes for controlling described first camera module when described object distance is less than or equal to described preset distance；And
Second controls module, and described second controls module adopts the focusing of passive focal modes for controlling described second camera module when described object distance is more than described preset distance.
The electronic installation of embodiment of the present invention, including imaging device and control device as above.
The control method of embodiment of the present invention, control device and electronic installation, corresponding focal modes is adopted to focus by detecting the object distance corresponding camera module of control of object, effectively compensate for close shot, distant view and each focal modes respective deficiency in focusing and shooting, improve Consumer's Experience.
The advantage of the additional aspect of the present invention will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the schematic flow sheet of the control method of embodiment of the present invention.
Fig. 2 is the high-level schematic functional block diagram controlling device of embodiment of the present invention.
Fig. 3 is the schematic flow sheet of the control method of some embodiment of the present invention.
Fig. 4 is the high-level schematic functional block diagram controlling device of some embodiment of the present invention.
Detailed description of the invention
Being described below in detail embodiments of the present invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining embodiments of the present invention, and it is not intended that restriction to embodiments of the present invention.
Refer to Fig. 1, the control method of embodiment of the present invention, it is used for controlling imaging device.Imaging device includes first camera module and second camera module.Wherein, first camera module includes wide-angle lens, and second camera module includes telephoto lens.
Control method comprises the following steps:
S10, whether the object distance of detection object is less than or equal to preset distance；
S20, controls first camera module and adopts the focusing of laser focal modes when object distance is less than or equal to preset distance；And
S30, controls second camera module and adopts the focusing of passive focal modes when object distance is more than preset distance.
Referring to Fig. 2, the control device 100 of embodiment of the present invention includes detection module the 10, first control 20 and second and controls module 30.As an example, the control method of embodiment of the present invention can be realized by the control device 100 of embodiment of the present invention, can be applicable to electronic installation 1000, and electronic installation 1000 can include controlling device 100 and imaging device 200.Imaging device 200 includes first camera module 210 and second camera module 220.Wherein, first camera module 210 includes wide-angle lens 211, and second camera module includes telephoto lens 221.
The step S10 of the control method of embodiment of the present invention can be realized by detection module 10, and step S20 can be realized by processing the first control module 20, and step S30 can be controlled module 30 by second and realize.In other words, whether detection module 10 is used for the object distance detecting object less than or equal to preset distance.First controls module 20 adopts laser focal modes to focus for controlling first camera module 210 when object distance is less than or equal to preset distance.Second controls module 30 adopts passive focal modes to focus for controlling second camera module 220 when object distance is more than preset distance.
No matter single camera module, adopt wide-angle lens or telephoto lens all to have certain limitation in some scene of shooting, for instance, though the wide-angle lens angle of visual field is bigger, the content that can photograph is more, and the depth of field is also abundanter, but shooting distance is relatively near and marginal distortion is more apparent.And the angle of visual field of telephoto lens is less, but the distance that can shoot is farther, and visually object seems more closely and bigger.Therefore, when imaging device 200 adopts wide-angle lens module and telephoto lens module simultaneously, and select suitable camera module will shoot more preferably photo in corresponding photographed scene.
For focal modes, laser focal modes is focused faster because of it speed, is increasingly widely applied in electronic installation.Laser focusing mainly utilizes the characteristic that infrared light centrality not easily spreads by force, emit from laser ranging system by recording infrared light, reflect through target surface, the time difference finally received, and calculated the target distance to imaging device by image-signal processor.This distance is the object distance in focus process, further according to the corresponding relation of the object distance pre-set Yu focusing motor position, drives focusing motor to arrive focal position and completes focusing.But being generally limited by power consumption and the environmental light parameter impact on Infrared jamming of electronic installation, the coverage of laser focal modes is commonly available to focusing during close shot shooting, and is unfavorable for focusing during vista shot.In other words, when the laser acquired object distance of focusing is generally within the scope of certain distance accurately, and object distance measured beyond distance range is not accurate enough to a certain extent.
For focusing relative to laser, the passive focal modes adopted, for instance contrast focal modes and phase place focal modes, the more advantage when vista shot.
The principle of contrast focusing is the contrast change according to focal point picture, lens location when searching contrast is maximum.When captured picture contrast is maximum, imaging is the most clear, namely realizes focusing.
In phase place focusing technology, the pixel of imageing sensor is generally made up of in pairs left and right pixel.Imaging device 200 generates the data waveform of left pixel and the data waveform of right pixel respectively.When the data waveform of left pixel and the data waveform of right pixel overlap, captured picture is the most clear, namely focuses successfully.Thus, imaging device 200 can calculate the moving direction of lens set in imaging device 200 and distance according to the phase meter of the data waveform of left and right pixel and then realize focusing.Correspondingly, contrast focal modes and phase place focal modes also have its advantage and limitation.Such as, in low luminous environment, phase place focal modes and the usual focus effects of contrast focal modes are poor, and when scene contrast being shot is relatively low, contrast focal modes focus effects is poor.And it is said that in general, contrast focal modes finds, owing to existing, the process that contrast is maximum, phase place focal modes and laser focal modes are then that therefore the focusing speed of contrast focal modes is slower by calculating the position obtaining focus lens.
In shooting, first camera module 210 and second camera module 220 are in opening when original state, whether detection module 10 detects the object distance of object less than preset distance, whether accurately one detect employing laser focal modes focusing, and two judge that scene being shot is close shot shooting or vista shot.Preset distance that is to say that in above-mentioned explanation, laser focal modes records the accurate coverage scope of object distance.Object distance can directly adopt laser focal modes to obtain, naturally it is also possible to adopts other focal modes to obtain, does not again limit.Judge that whether laser focal modes is accurate according to acquired object distance, and select the camera module adopted during shooting accordingly.When object distance being detected less than or equal to preset distance, the acquired object distance of laser focal modes is comparatively accurate, and being regarded as and close shot is shot, now first controls module 20 and controls first camera module 210 and that is to say that wide-angle lens 211 adopts laser focal modes to focus, and takes pictures.One focuses speed soon, and two carry out the angle of visual field relatively greatly, better user experience.And when object distance being detected more than preset distance, the acquired object distance of laser focal modes is by not accurate enough, being regarded as vista shot, now second controls module 20 and controls second camera module 220 and that is to say that wide-angle lens 221 adopts passive focal modes to focus, and takes pictures.One accuracy that can guarantee that focusing and speed, two is bigger when can make object imaging.
In sum, the control method of embodiment of the present invention, control device and electronic installation, corresponding focal modes is adopted to focus by detecting the object distance corresponding camera module of control of object, effectively compensate for close shot, distant view and each focal modes respective deficiency in focusing and shooting, improve Consumer's Experience.
In some embodiments, electronic installation 1000 can be the electric terminal that mobile phone or panel computer etc. have camera function.And imaging device 200 includes preposition and/or rearmounted camera.
It is appreciated that electronic installation 1000 includes but not limited to the example of present embodiment.
In some embodiments, imaging device 200 includes laser ranging system 230.Laser ranging system 230 is used for implementing laser focal modes, and laser ranging system 230 is additionally operable to measure the object distance of object.
The principle of laser focal modes and the explanation of laser ranging system refer to the explanation of above-mentioned embodiment, are no longer developed in details in herein.
In some embodiments, preset distance is less than or equal to 40 centimetres.
Such as the explanation of above-mentioned embodiment, the object distance acquired in preset distance of laser focal modes is comparatively accurate.In other words, it is believed that in object is in preset distance, the confidence value of measured object distance is higher, and usual preset distance is set smaller than or equal to 40 centimetres, shoots for close shot in predetermined distance range.Certainly, in some instances, the parameter of laser ranging system 230 such as transmitting power is higher, then preset distance is likely larger than 40 centimetres, for instance 50 centimetres etc., do not limit at this.
In some embodiments, control method further comprises the steps of:
S40, receives user and inputs to determine preset distance.
In some embodiments, control device 100 to include determining module 40.Step S40 can by determining that module 40 realizes.In other words, it is determined that module 40 is used for receiving user and inputs to determine preset distance.
Specifically, it is determined that module 40 is connected with the user interface of imaging device 200, and receive the input of user.Determining that module 40 can be touch screen or button, accordingly, user's input includes the mode of touch screen or button, increases or reduces corresponding numerical value.
So, user can determine preset distance according to the use habit of oneself, and then improves Consumer's Experience.
Such as the explanation of above-mentioned embodiment, preset distance can be provided with default value when dispatching from the factory, and the setting of default value can according to carrying out testing to determine preferably laser ranging preset distance before dispatching from the factory.Certainly in practical operation, user can be accustomed to default value being modified and being set to new preset distance according to shooting, with satisfied shooting demand.
Refer to Fig. 3, in some embodiments, after step S20, be additionally included in step S21, when object distance is less than or equal to preset distance, close second camera module 220.Also include step S31 after step S30 and close first camera module 210 when object distance is more than preset distance.In other words, adopt wide-angle lens 211 when close shot is shot, and adopt telephoto lens 221 when shooting distant view.
Refer to Fig. 4, in some embodiments, control device 100 and also include switch module 50.Step S21 and step S31 can be realized by switch module 50.Switch module 50 for closing second camera module 220 when object distance is less than or equal to preset distance in other words, and close first camera module 210 when object distance is more than preset distance.
So, suitable camera module can be selected to shoot satisfied photo according to different photographed scenes and shooting demand.
In some embodiments, passive focusing mode includes contrast focal modes and phase place focal modes.The explanation of contrast focal modes and phase place focal modes refer to the explanation of above-mentioned embodiment, is no longer developed in details in herein.
Embodiment of the present invention control device 100 and not deployed other parts of electronic installation 1000, the corresponding part of the control method of embodiment of above can be joined, be no longer developed in details at this.
In the description of embodiments of the present invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of description embodiments of the present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that restriction to embodiments of the present invention.
Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more described features.In the description of embodiments of the present invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In the description of embodiments of the present invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, can also be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection or can communication mutually；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in embodiments of the present invention as the case may be.
In embodiments of the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can include the first and second features and directly contact, it is also possible to include the first and second features and be not directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " include fisrt feature directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature directly over second feature and oblique upper, or be merely representative of fisrt feature level height less than second feature.
Above disclosure provides many different embodiments or example for realizing the different structure of embodiments of the present invention.In order to simplify disclosing of embodiments of the present invention, above parts and setting to specific examples are described.Certainly, they are only merely illustrative, and are not intended to the restriction present invention.Additionally, embodiments of the present invention can in different examples repeat reference numerals and/or reference letter, this repetition is for purposes of simplicity and clarity, the relation between itself not indicating discussed various embodiment and/or arranging.Additionally, the example of the various specific technique that provides of embodiments of the present invention and material, but those of ordinary skill in the art are it can be appreciated that the use of the application of other techniques and/or other materials.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " exemplary embodiment ", " example ", " concrete example " or " some examples " etc. means in conjunction with described embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Describe in flow chart or in this any process described otherwise above or method and be construed as, represent and include the module of code of executable instruction of one or more step for realizing specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press order that is shown or that discuss, including according to involved function by basic mode simultaneously or in the opposite order, performing function, this should be understood by embodiments of the invention person of ordinary skill in the field.
Represent in flow charts or in this logic described otherwise above and/or step, such as, it is considered the sequencing list of executable instruction for realizing logic function, may be embodied in any computer-readable medium, use for instruction execution system, device or equipment (such as computer based system, including the system of processing module or other can from instruction execution system, device or equipment instruction fetch the system performing instruction), or use in conjunction with these instruction execution systems, device or equipment.For the purpose of this specification, " computer-readable medium " can be any can comprise, store, communicate, propagate or transmission procedure is for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium includes following: have the electrical connection section (electronic installation) of one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read only memory (ROM), erasable edit read only memory (EPROM or flash memory), fiber device, and portable optic disk read only memory (CDROM).Additionally, computer-readable medium can even is that the paper that can print described program thereon or other suitable media, because can such as by paper or other media be carried out optical scanning, then carry out editing, interpreting or be processed to electronically obtain described program with other suitable methods if desired, be then stored in computer storage.
Should be appreciated that each several part of embodiments of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple steps or method can realize with the storage software or firmware in memory and by suitable instruction execution system execution.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: there is the discrete logic of logic gates for data signal realizes logic function, there is the special IC of suitable combination logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries can be by the hardware that program carrys out instruction relevant and complete, described program can be stored in a kind of computer-readable recording medium, this program upon execution, including the step one or a combination set of of embodiment of the method.
Additionally, each functional unit in various embodiments of the present invention can be integrated in a processing module, it is also possible to be that unit is individually physically present, it is also possible to two or more unit are integrated in a module.Above-mentioned integrated module both can adopt the form of hardware to realize, it would however also be possible to employ the form of software function module realizes.If described integrated module is using the form realization of software function module and as independent production marketing or use, it is also possible to be stored in a computer read/write memory medium.
Storage medium mentioned above can be read only memory, disk or CD etc..
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, it is impossible to be interpreted as limitation of the present invention, and above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (15)
1. a control method, is used for controlling imaging device, it is characterised in that, described imaging device includes first camera module and second camera module, described first camera module includes wide-angle lens, and described second camera module includes telephoto lens, and described control method comprises the following steps:
Whether the object distance of detection object is less than or equal to preset distance；
Control described first camera module when described object distance is less than or equal to described preset distance and adopt the focusing of laser focal modes；And
Control described second camera module when described object distance is more than described preset distance and adopt the focusing of passive focal modes.
2. control method as claimed in claim 1, it is characterised in that described imaging device includes laser ranging system, and described laser ranging system is used for implementing described laser focal modes, and described laser ranging system is used for measuring described object distance.
3. control method as claimed in claim 1, it is characterised in that described preset distance is less than or equal to 40 centimetres.
4. control method as claimed in claim 1, it is characterised in that described control method includes:
Receive user to input to determine described preset distance.
5. control method as claimed in claim 1, it is characterised in that close described second camera module when described object distance is less than or equal to described preset distance, and close described first camera module when described object distance is more than described preset distance.
6. control method as claimed in claim 1, it is characterised in that described passive focusing mode includes contrast focal modes and phase place focal modes.
7. control a device, be used for controlling imaging device, it is characterised in that, described imaging device includes first camera module and second camera module, described first camera module includes wide-angle lens, and described second camera module includes telephoto lens, and described control device includes:
Detection module, whether described detection module is used for the object distance detecting object less than or equal to preset distance；
First controls module, and described first controls module adopts the focusing of laser focal modes for controlling described first camera module when described object distance is less than or equal to described preset distance；And
Second controls module, and described second controls module adopts the focusing of passive focal modes for controlling described second camera module when described object distance is more than described preset distance.
8. controlling device as claimed in claim 7, it is characterised in that described imaging device includes laser ranging system, described laser ranging system is used for implementing described laser focal modes, and described laser ranging system is used for measuring described object distance.
9. control device as claimed in claim 7, it is characterised in that described preset distance is less than or equal to 40 centimetres.
10. control device as claimed in claim 7, it is characterised in that described control device includes:
Determine module, described determine that module inputs to determine described preset distance for receiving user.
11. control device as claimed in claim 7, it is characterized in that, described control device includes switch module, described switch module for closing described second camera module when described object distance is less than or equal to described preset distance, and close described first camera module when described object distance is more than described preset distance.
12. control device as claimed in claim 7, it is characterised in that described passive focusing mode includes contrast focal modes and phase place focal modes.
13. an electronic installation, it is characterised in that include imaging device and the control device as described in claim 7-12 any one.
14. electronic installation as claimed in claim 13, it is characterised in that described electronic installation includes mobile phone or panel computer.
15. electronic installation as claimed in claim 13, it is characterised in that described imaging device includes Front camera and/or rearmounted camera.
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| CN109639974A (en) * | 2018-12-20 | 2019-04-16 | Oppo广东移动通信有限公司 | Control method, control device, electronic device and medium |
| WO2020200093A1 (en) * | 2019-03-29 | 2020-10-08 | 深圳市道通智能航空技术有限公司 | Focusing method and device, photographing apparatus and aircraft |
| CN110708463A (en) * | 2019-10-09 | 2020-01-17 | Oppo广东移动通信有限公司 | Focusing method, focusing device, storage medium and electronic equipment |
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