CN105338241A - Shooting method and device - Google Patents
Shooting method and device Download PDFInfo
- Publication number
- CN105338241A CN105338241A CN201510671478.1A CN201510671478A CN105338241A CN 105338241 A CN105338241 A CN 105338241A CN 201510671478 A CN201510671478 A CN 201510671478A CN 105338241 A CN105338241 A CN 105338241A
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- China
- Prior art keywords
- user
- gesture
- photographic subjects
- preview screen
- ultrasonic sensor
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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
- H04N23/61—Control of cameras or camera modules based on recognised objects
- H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
Abstract
The invention discloses a shooting method and a device. The shooting method comprises steps of obtaining user gestures via an ultrasonic sensor and determining a to-be-shot target in a picture according to the user gestures. In this way, the trouble is solved that in the prior art, during the shooting process, it is inconvenient for a user to touch a touch screen whose hands are wet or dirt when shooting the target in the previewed picture, so it is convenient for the user to select the to-be-shot target and user experience is improved.
Description
Technical field
The embodiment of the present invention relates to digital vedio recording field, particularly relates to a kind of image pickup method and device.
Background technology
Along with the development of technique for taking, increasing mobile terminal such as panel computer, mobile phone etc. such as, be provided with camera, and picture can be recorded by people at any time, keeps fine moment here.
The further raising that people require the texture of the picture of shooting, make camera function on mobile terminal from strength to strength, when the distance of the camera on the scenery that will take and described mobile terminal changes, it is more clear to need by namely the focus scenery that makes to take of adjusting focal length.Taking focusing in prior art is by determining photographic subjects at preview picture mid point touch screen curtain, can not the region of personal settings photographic subjects.Such as, and need user to contact touch-screen in shooting process of the prior art, when user is inconvenient to contact touch-screen determination photographic subjects, user has water or foul on hand, with regard to being inconvenient to the operation carrying out above-mentioned point touching screen, have impact on Consumer's Experience.
Summary of the invention
The invention provides a kind of image pickup method and device, to realize the convenience improving shooting operation, promote Consumer's Experience.
First aspect, embodiments provides a kind of image pickup method, comprising:
User's gesture is obtained by ultrasonic sensor;
According to the photographic subjects in user's gesture determination preview screen.
Second aspect, the embodiment of the present invention additionally provides a kind of filming apparatus, comprising:
Gesture acquisition module, for obtaining user's gesture by ultrasonic sensor;
Photographic subjects determination module, for according to the photographic subjects in user's gesture determination preview screen.
The present invention obtains user's gesture by utilizing ultrasonic sensor, and according to user's gesture, the photographic subjects in preview screen is determined, to solve in prior art in shooting process, user is needed to contact touch-screen in described preview screen during photographic subjects, and user now has water or spot to be inconvenient to contact the puzzlement of touch-screen on hand, facilitate user's selecting photographic subjects, improve Consumer's Experience.
Accompanying drawing explanation
The schematic flow sheet of a kind of image pickup method that Fig. 1 provides for the embodiment of the present invention one;
The structural representation of the ultrasonic sensor that Fig. 2 provides for the embodiment of the present invention one;
The schematic flow sheet of a kind of image pickup method that Fig. 3 provides for the embodiment of the present invention two;
The schematic flow sheet of a kind of image pickup method that Fig. 4 provides for the embodiment of the present invention three;
The structural representation of a kind of filming apparatus that Fig. 5 provides for the embodiment of the present invention four.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, illustrate only part related to the present invention in accompanying drawing but not entire infrastructure.
Embodiment one
The schematic flow sheet of a kind of image pickup method that Fig. 1 provides for the embodiment of the present invention one, the present embodiment is applicable to and is carrying out in shooting process the situation that in preview screen, photographic subjects is determined, the method can be performed by the filming apparatus be configured in camera terminal, and wherein said device can by software/or hardware implementing.As shown in Figure 1, a kind of image pickup method that the present embodiment provides, specifically comprises following operation:
S110, obtain user gesture by ultrasonic sensor.
This operation can be specifically when user uses camera terminal to take, ultrasonic signal is launched by the transmitting terminal being built in the ultrasonic sensor in camera terminal, timing is started when launching ultrasonic signal, ultrasonic wave is propagated in atmosphere, reflect through user in way and follow-uply resume the receiving terminal casting to ultrasonic sensor, receiving terminal receives the ultrasonic signal that described transmitting terminal launches and stops timing simultaneously.Calculated by the propagation time of recording from transmitting terminal to receiving terminal the aerial propagation velocity of ultrasonic wave and described ultrasonic signal, draw the range information between user and camera terminal, thus obtain user's gesture information.Concrete can be the range information that multiple ultrasonic sensor obtains between user and camera terminal simultaneously, and comprehensive analysis obtains the gesture of user, is not construed as limiting the concrete obtain manner of user's gesture.Wherein, described camera terminal can be that such as mobile phone, panel computer and digital camera etc. have the electronic equipment of shoot function.
S120, according to the photographic subjects in user's gesture determination preview screen.
When utilizing camera terminal to take, according to the above-mentioned user's gesture obtained by ultrasonic sensor, the photographic subjects in preview screen is selected, can, so that adopt described photographic subjects to carry out the operations such as focusing in follow-up shooting process, user be made to photograph clear photograph.
The embodiment of the present invention obtains user's gesture by utilizing ultrasonic sensor, and according to user's gesture, the photographic subjects in preview screen is determined, solve in prior art and utilize camera terminal to carry out in shooting process, user is needed to contact touch-screen in described preview screen during photographic subjects, and have water or spot to be inconvenient to contact the puzzlement of touch-screen on hand due to now user, facilitate user's selecting photographic subjects, add optional manner photographic subjects being carried out to determination operation, improve Consumer's Experience.
Preferably, in above-described embodiment, obtaining user's gesture by ultrasonic sensor, can also be when user uses camera terminal to take, by the transmitting terminal sequential filming ultrasonic signal of ultrasonic sensor, propagate the receiving terminal reflexing to ultrasonic sensor in way through user's gesture; And constantly the aerial propagation velocity of ultrasonic wave and described ultrasonic signal are calculated from transmitting terminal to the propagation time of receiving terminal, draw the distance between user's gesture and camera terminal, thus obtain change and the state in each moment of user's gesture, so that change photographic subjects in time according to described user's gesture at any time.
Preferably, in above-described embodiment, after according to the photographic subjects in user's gesture determination preview screen, also comprise:
A1, obtain the distance between photographic subjects and camera terminal according to ultrasonic sensor.
This operation can be specifically utilize the transmitting terminal of the ultrasonic sensor be built in camera terminal to launch ultrasonic signal, runs into the receiving terminal that photographic subjects is reflected onto ultrasonic sensor in way.According to the aerial propagation velocity of ultrasonic wave and described ultrasonic signal from transmitting terminal to the used time of receiving terminal, calculate the distance between photographic subjects and camera terminal.Ultrasonic sensor can be the detection carried out continuously photographic subjects, thus constantly obtains the distance between photographic subjects and camera terminal, carries out the renewal about described distance record.
A2, according to the distance between described photographic subjects and camera terminal, carry out focus operation.
According to the above-mentioned distance utilized between ultrasonic sensor acquisition photographic subjects and camera terminal, carry out focus operation to described photographic subjects, in the picture that user can be made to take, photographic subjects reaches higher definition; When the change in location due to photographic subjects or camera terminal causes the distance between described photographic subjects and camera terminal to change, the distance between the photographic subjects that constantly can obtain according to above-mentioned ultrasonic sensor and camera terminal, focuses.User can be made so no matter when to press shutter take, in the picture of shooting, photographic subjects can reach higher definition, improves Consumer's Experience.
On the basis of above-described embodiment, further, the position of ultrasonic sensor described in the embodiment of the present invention and quantity do not do concrete restriction, as long as the function obtaining user's gesture and the distance between photographic subjects and camera terminal can be realized, concrete, described ultrasonic sensor can be comprise at least one receiving terminal and at least one transmitting terminal.Optionally, can be arrange two ultrasonic sensors to be respectively used to obtain user's gesture and the distance between photographic subjects and camera terminal; Also can be arrange a ultrasonic sensor to obtain user's gesture and the distance between photographic subjects and camera terminal at times, the benefit arranged so not only saves components and parts, reduces costs, and reduce the volume of camera terminal; Wherein, the transmitting terminal of described sonac and receiving terminal can be arranged on separately on described camera terminal.
When described camera terminal be mobile phone, panel computer etc. there is the electronic equipment of loud speaker and microphone time, can also be preferably that as shown in Figure 2, the transmitting terminal of ultrasonic sensor is the loud speaker 101 of camera terminal, and receiving terminal is the microphone 102 of camera terminal.The ultrasonic wave that loud speaker 101 is launched spreads out of camera terminal through the glass cover-plate 103 of camera terminal, reflected by barrier 104 when running into barrier 104, microphone 102 receives the ultrasonic wave reflected by barrier 104, the distance between barrier and camera terminal is obtained according to the ultrasonic wave launched and the ultrasonic wave be reflected back toward received to make ultrasonic sensor, wherein, described barrier can refer to user's gesture and photographic subjects.
Like this loud speaker is multiplexed with the transmitting terminal of ultrasonic sensor, advantage microphone being multiplexed with the receiving terminal of ultrasonic sensor is, additionally need not increase and decrease the cost of camera terminal, utilize loud speaker 101 in existing camera terminal and microphone 102 respectively as the transmitting terminal of ultrasonic sensor and receiving terminal, do not need to add any hardware device, and the interface quantity of ultrasonic sensor can be reduced, save production cost.It should be noted that, can according to the quantity needed ultrasonic sensor receiving terminal and transmitting terminal of practical application scene, and the quantity of ultrasonic sensor is arranged, to improve the accuracy identifying user's gesture and described photographic subjects and camera terminal distance.
In addition, it should be noted that, the embodiment of the present invention is also not construed as limiting the frequency of the ultrasonic signal that described ultrasonic sensor is received and dispatched and waveform.
Embodiment two
The schematic flow sheet of a kind of image pickup method that Fig. 3 provides for the embodiment of the present invention two.The method is optimized on the basis of above-described embodiment.As shown in Figure 3, a kind of image pickup method that the present embodiment provides, specifically comprises following operation:
S210, obtain user gesture by ultrasonic sensor.
The duration of S220, acquisition user's gesture operating area in preview screen, and when the described duration is greater than Preset Time, determine that the object that described operating area is shown is photographic subjects.
Obtain the duration of user's gesture operating area in preview screen, optionally, can be obtain user's gesture to keep the actionless time with camera terminal in operating area in preview screen, also can be obtain user's gesture to keep the time of relative motion with camera terminal in operating area in preview screen; And described duration and Preset Time are compared; When the described duration is greater than Preset Time, the object that described operating area is shown is defined as photographic subjects; When the described duration is less than or equal to Preset Time, do not operate.Exemplary, arranging Preset Time is 2 seconds, the finger stretched out as user continues 3 seconds at the upper area of preview screen, then user's gesture operating area in preview screen is the region that user points just right preview screen, therefore user is pointed the object region that faces preview screen shown and be defined as photographic subjects, preferably, described photographic subjects can be carried out frame choosing in preview screen, so that user checks.
Optionally, in the present embodiment, technical scheme can also comprise following operation:
S230, obtain the distance between photographic subjects and camera terminal according to ultrasonic sensor.
S240, calculate focusing position according to the distance of photographic subjects and camera terminal.
According to the distance utilized between above-mentioned ultrasonic sensor acquisition photographic subjects and camera terminal, focusing position when taking for photographic subjects can be calculated, to control camera lens completing auto-focusing.Wherein, auto-focusing be image by utilizing camera to get as information source, analyzing and processing is carried out to these information, thus realizes auto-focusing.Exemplary, auto-focusing algorithm mainly contain focusing depth method, Depth from defocus, based on DSP (DigitalSignalProcess, Digital Signal Processing) auto-focusing algorithm etc., what deserves to be explained is, the embodiment of the present invention is not restricted concrete focus algorithm, can set according to actual needs in specific implementation.
S250, lens moving to be focused to described focusing position.
According to photographic subjects and default focus algorithm, determine lens moving to the focus data needed during focusing position, according to focus data, lens moving is focused to described focusing position, optionally, show to defocused preview screen on the display screen of camera terminal, to watch the definition of photographic subjects.Wherein, described focus data can be step-length and the moving direction that camera lens needs movement, and also can be focusing position, can also be input voltage or the input current of motor, and this voltage or electric current move the step-length of specifying for driving camera lens toward the moving direction of specifying.Concrete, the embodiment of the present invention is not restricted.
The embodiment of the present invention, by when utilizing camera terminal to take, obtains the duration of user's gesture operating area in preview screen; When the described duration is greater than Preset Time, determine that object that described operating area is shown is that photographic subjects makes user not contact camera terminal just can to select photographic subjects, mode of operation is novel unique, and wherein the setting of Preset Time can prevent user misoperation; And according to the photographic subjects of ultrasonic sensor acquisition and the distance of camera terminal, calculate focusing position, lens moving is focused to described focusing position, make focus operation more fast, precisely, in captured photo, the definition of photographic subjects is higher, improves Consumer's Experience.
Embodiment three
The schematic flow sheet of a kind of image pickup method that Fig. 4 provides for the embodiment of the present invention three.The method is optimized on the basis of above-described embodiment.As shown in Figure 4, a kind of image pickup method that the embodiment of the present invention provides, specifically comprises following operation:
S310, obtain user gesture by ultrasonic sensor.
S320, the operation trace of acquisition user's gesture in preview screen, and the object that the operation trace enclosing region of described user's gesture in preview screen is shown is defined as photographic subjects.
Optionally, the operation trace of described user's gesture in preview screen can be user's gesture face to carry out the regular figures such as picture circle, rectangle and irregular figure above preview screen time orthographic projection in the preview screen track that formed.Preferably, when described track be not enclosed track time, closing according to necessarily arranging, such as, can be that the end points of untight track is carried out straight line connection, makes described track be a closed figure.Then the object that the operation trace enclosing region of described user's gesture in preview screen is shown is defined as photographic subjects, when the object that described operation trace enclosing region is shown is multiple, can be automatically therefrom select an object to be photographic subjects according to predetermined manner; Also can be carry out photographic subjects to redefine prompting, make user re-start the determination of photographic subjects; Can also be continue to utilize the photographic subjects originally determined.Exemplary, automatically an object is therefrom selected to be photographic subjects according to predetermined manner, can be that the object being positioned at described operation trace enclosing region geometric center place is defined as photographic subjects, also can be to occupy the larger object of display area or less object is defined as photographic subjects.
Optionally, in the present embodiment, technical scheme can also comprise following operation:
S330, obtain the distance between photographic subjects and camera terminal according to ultrasonic sensor.
S340, calculate focusing position according to the distance of photographic subjects and camera terminal.
S350, lens moving to be focused to described focusing position.
The embodiment of the present invention is by when utilizing camera terminal to take, ultrasonic sensor is utilized to obtain the operation trace of user's gesture in preview screen, and the object that the operation trace enclosing region that described user's gesture is formed in preview screen is shown is defined as photographic subjects, when making user not contact camera terminal, just can select photographic subjects, so that carry out focus operation with this photographic subjects, picture is made to reach shooting effect clearly.This mode novelty selected photographic subjects, solves user is not easy to contact camera terminal puzzlement owing to now speckling with spot etc. on hand; And according to the photographic subjects of ultrasonic sensor acquisition and the distance of camera terminal, calculate focusing position, and carry out auto-focusing by the position of moving lens, make focus operation more quick, improve the satisfaction of Consumer's Experience.Optionally, before the object operation trace enclosing region of described user's gesture in preview screen shown is defined as photographic subjects, also comprise:
Obtain the number of operations of user's gesture;
When the number of operations of described user's gesture is greater than preset times, perform the operation object that the operation trace enclosing region of described user's gesture in preview screen is shown being defined as photographic subjects.
By the number of operations of user's gesture and described preset times are compared, just perform photographic subjects determination operation when the number of operations of user's gesture is greater than preset times, can user misoperation be prevented like this.Exemplary, can be preset times be 2 times, only have when user's gesture carries out the repetitive operation of more than 3 times, just perform the operation object that the operation trace enclosing region of described user's gesture in preview screen is shown being defined as photographic subjects.
Embodiment four
The structural representation of a kind of filming apparatus that Fig. 5 provides for the embodiment of the present invention four.As shown in Figure 5, a kind of filming apparatus that the embodiment of the present invention provides mainly comprises:
Gesture acquisition module 410 and photographic subjects determination module 420.
Wherein, gesture acquisition module 410, for obtaining user's gesture by ultrasonic sensor;
Photographic subjects determination module 420, for according to the photographic subjects in user's gesture determination preview screen.
The filming apparatus that the embodiment of the present invention provides utilizes ultrasonic sensor to obtain user's gesture by gesture acquisition module, and utilize photographic subjects determination module to determine the photographic subjects in preview screen according to user's gesture, solve in prior art and utilize camera terminal to carry out in shooting process, user is needed to contact touch-screen in described preview screen during photographic subjects, and have water or spot to be inconvenient to contact the puzzlement of touch-screen on hand due to now user, facilitate user's selecting photographic subjects, add optional manner photographic subjects being carried out to determination operation, improve Consumer's Experience.
Preferably, filming apparatus described in the embodiment of the present invention can also comprise:
Distance acquisition module 430, for obtaining the distance between photographic subjects and camera terminal according to ultrasonic sensor;
Focusing module 440, for according to the distance between described photographic subjects and camera terminal, carries out focus operation.
Optionally, described photographic subjects determination module 420 specifically for duration of obtaining user's gesture operating area in preview screen, and when the described duration is greater than Preset Time, determines that the object that described operating area is shown is photographic subjects.
Optionally, described photographic subjects determination module 420 specifically for: obtain the operation trace of user's gesture in preview screen, and the object that the operation trace enclosing region of described user's gesture in preview screen is shown be defined as photographic subjects.
Preferably, filming apparatus described in the embodiment of the present invention, can also comprise: number of operations determination module, for obtaining the number of operations of user's gesture, and when being greater than preset times when the number of operations of described user's gesture, perform the operation object that the operation trace enclosing region of described user's gesture in preview screen is shown being defined as photographic subjects.
Optionally, described Focusing module 440 comprises:
Computing unit, calculates focusing position for the distance according to photographic subjects and camera terminal;
Focusing unit, for focusing lens moving to described focusing position.
Wherein, described ultrasonic sensor comprises at least one receiving terminal and at least one transmitting terminal; Wherein,
Described transmitting terminal is loud speaker, and described receiving terminal is microphone.
Above-mentioned filming apparatus can perform the image pickup method that any embodiment of the present invention provides, and possesses and performs the corresponding functional module of image pickup method and beneficial effect.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (14)
1. an image pickup method, is characterized in that, comprising:
User's gesture is obtained by ultrasonic sensor;
According to the photographic subjects in user's gesture determination preview screen.
2. method according to claim 1, is characterized in that, after according to the photographic subjects in user's gesture determination preview screen, also comprises:
The distance between photographic subjects and camera terminal is obtained according to ultrasonic sensor;
According to the distance between described photographic subjects and camera terminal, carry out focus operation.
3. method according to claim 1, is characterized in that, according to the photographic subjects in user's gesture determination preview screen, comprising:
Obtain the duration of user's gesture operating area in preview screen, and when the described duration is greater than Preset Time, determine that the object that described operating area is shown is photographic subjects.
4. method according to claim 1, is characterized in that, according to the photographic subjects in user's gesture determination preview screen, comprising:
Obtain the operation trace of user's gesture in preview screen, and the object that the operation trace enclosing region of described user's gesture in preview screen is shown is defined as photographic subjects.
5. method according to claim 4, is characterized in that, before the object operation trace enclosing region of described user's gesture in preview screen shown is defined as photographic subjects, also comprises:
Obtain the number of operations of user's gesture;
When the number of operations of described user's gesture is greater than preset times, perform the operation object that the operation trace enclosing region of described user's gesture in preview screen is shown being defined as photographic subjects.
6. method according to claim 2, is characterized in that, according to the distance between described photographic subjects and camera terminal, carries out focus operation, comprising:
Distance according to photographic subjects and camera terminal calculates focusing position;
Lens moving is focused to described focusing position.
7., according to described method arbitrary in claim 1-6, it is characterized in that, described ultrasonic sensor comprises at least one receiving terminal and at least one transmitting terminal; Wherein,
Described transmitting terminal is loud speaker, and described receiving terminal is microphone.
8. a filming apparatus, is characterized in that, comprising:
Gesture acquisition module, for obtaining user's gesture by ultrasonic sensor;
Photographic subjects determination module, for according to the photographic subjects in user's gesture determination preview screen.
9. device according to claim 8, is characterized in that, also comprises:
Distance acquisition module, for obtaining the distance between photographic subjects and camera terminal according to ultrasonic sensor;
Focusing module, for according to the distance between described photographic subjects and camera terminal, carries out focus operation.
10. device according to claim 8, is characterized in that, described photographic subjects determination module specifically for:
Obtain the duration of user's gesture operating area in preview screen, and when the described duration is greater than Preset Time, determine that the object that described operating area is shown is photographic subjects.
11. devices according to claim 8, it is characterized in that, described photographic subjects determination module specifically for: obtain the operation trace of user's gesture in preview screen, and the object that the operation trace enclosing region of described user's gesture in preview screen is shown be defined as photographic subjects.
12. devices according to claim 11, it is characterized in that, also comprise: number of operations determination module, for obtaining the number of operations of user's gesture, and when being greater than preset times when the number of operations of described user's gesture, perform the operation object that the operation trace enclosing region of described user's gesture in preview screen is shown being defined as photographic subjects.
13. devices according to claim 9, is characterized in that, described Focusing module comprises:
Computing unit, calculates focusing position for the distance according to photographic subjects and camera terminal;
Focusing unit, for focusing lens moving to described focusing position.
14. arbitrary described devices in-13 according to Claim 8, it is characterized in that, described ultrasonic sensor comprises at least one receiving terminal and at least one transmitting terminal; Wherein,
Described transmitting terminal is loud speaker, and described receiving terminal is microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510671478.1A CN105338241A (en) | 2015-10-15 | 2015-10-15 | Shooting method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510671478.1A CN105338241A (en) | 2015-10-15 | 2015-10-15 | Shooting method and device |
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| CN105338241A true CN105338241A (en) | 2016-02-17 |
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| CN201510671478.1A Pending CN105338241A (en) | 2015-10-15 | 2015-10-15 | Shooting method and device |
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| CN108650457A (en) * | 2018-05-03 | 2018-10-12 | Oppo广东移动通信有限公司 | Automatic photographing method, device, storage medium and mobile terminal |
| CN110290313A (en) * | 2019-06-05 | 2019-09-27 | 河南大学 | A method of guidance auto focus apparatus is out of focus |
| CN111107259A (en) * | 2018-10-25 | 2020-05-05 | 阿里巴巴集团控股有限公司 | Image acquisition method and device and electronic equipment |
| CN112565602A (en) * | 2020-11-30 | 2021-03-26 | 北京地平线信息技术有限公司 | Method and apparatus for controlling image photographing apparatus, and computer-readable storage medium |
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