CN104427114A - Shooting method, shooting device and mobile terminal - Google Patents

Shooting method, shooting device and mobile terminal Download PDF

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Publication number
CN104427114A
CN104427114A CN201310396360.3A CN201310396360A CN104427114A CN 104427114 A CN104427114 A CN 104427114A CN 201310396360 A CN201310396360 A CN 201310396360A CN 104427114 A CN104427114 A CN 104427114A
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China
Prior art keywords
shooting condition
angle
angular acceleration
meet
shooting
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CN201310396360.3A
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Chinese (zh)
Inventor
邵坤林
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ZTE Corp
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ZTE Corp
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Priority to CN201310396360.3A priority Critical patent/CN104427114A/en
Priority to PCT/CN2013/085310 priority patent/WO2014169598A1/en
Publication of CN104427114A publication Critical patent/CN104427114A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/64Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60Control of cameras or camera modules
    • H04N23/68Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/681Motion detection
    • H04N23/6812Motion detection based on additional sensors, e.g. acceleration sensors

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Studio Devices (AREA)

Abstract

The invention provides a shooting method, a shooting device and a mobile terminal. The method comprises the following steps that parameters of a moving state sensor are regularly obtained; whether the shooting conditions are met or not is judged according to the parameters of the moving state sensor, and shooting is carried out according to the judging result. The problem that rejected photos can be easily generated in the related technologies is solved, and the beneficial effect of shooting quality improvement is achieved.

Description

Image pickup method, device and mobile terminal
Technical field
The present invention relates to the communications field, in particular to a kind of image pickup method, device and mobile terminal.
Background technology
New function that is along with the develop rapidly of mobile terminal hardware technology, more and more, novel, that be full of intention is introduced into mobile terminal, enhances practicality and recreational, and brings abundanter operating experience and enjoyment for user.But meanwhile, user is also more and more higher for the requirement experienced.Such as when continuous shooting, because correlation technique is all controlled by timer, continuously shooting how many in such as a second, the generation of the photograph that so just causes much giving up, affects Consumer's Experience.
Easily produce the problem of useless photograph for shooting in correlation technique, not yet propose effective solution at present.
Summary of the invention
The invention provides a kind of image pickup method, device and mobile terminal, at least to solve the problem.
According to an aspect of the present invention, provide a kind of image pickup method, comprising: the parameter of timing acquisition motion state transducer; Parameter according to described motion state transducer judges whether to meet shooting condition, and takes according to judged result.
Preferably, described motion state transducer comprise following one of at least: gravity sensor; Gyroscope.
Preferably, the parameter obtaining described motion state transducer comprise following one of at least: the instantaneous velocity obtaining described gravity sensor; Obtain described gyrostatic angle and/or angular acceleration.
Preferably, according to the parameter of described motion state transducer judge whether to meet described shooting condition comprise following one of at least: according to described location status, the location status judging mobile terminal according to described instantaneous velocity, judges whether described mobile terminal meets described shooting condition; Judge the dither state of described mobile terminal according to described angle and/or angular acceleration, judge whether described mobile terminal meets described shooting condition according to described dither state.
Preferably, judge whether that meeting described shooting condition comprises: more described instantaneous velocity and threshold speed according to the parameter of described motion state transducer, if described instantaneous velocity is greater than described threshold speed, then determine not meet shooting condition, otherwise, relatively angle difference and angle threshold, wherein, described angle difference is the difference between the described gyrostatic angle of current acquisition and the front described gyrostatic angle once obtained; If described angle difference is greater than described angle threshold, then determine not meet shooting condition, otherwise, more described angular acceleration and angular acceleration threshold value; If described angular acceleration is less than described angular acceleration threshold value, then determine to meet described shooting condition, otherwise, then determine not meet shooting condition.
According to a further aspect in the invention, provide a kind of filming apparatus, comprising: monitoring module, for the parameter of timing acquisition motion state transducer; Computing module, for judging whether to meet shooting condition according to the parameter of described motion state transducer; Taking module, for taking according to judged result.
Preferably, described motion state transducer comprise following one of at least: gravity sensor; Gyroscope.
Preferably, described monitoring module be used for following one of at least: the instantaneous velocity obtaining described gravity sensor; Obtain described gyrostatic angle and/or angular acceleration.
Preferably, described computing module be used for following one of at least: according to described location status, the location status judging described device according to described instantaneous velocity, judges whether described device meets described shooting condition; Judge the dither state of described device according to described angle and/or angular acceleration, judge whether described device meets described shooting condition according to described dither state.
Preferably, described computing module is also for more described instantaneous velocity and threshold speed, if described instantaneous velocity is greater than described threshold speed, then determine not meet shooting condition, otherwise, relatively angle difference and angle threshold, wherein, described angle difference is the difference between the described gyrostatic angle of current acquisition and the front described gyrostatic angle once obtained; If described angle difference is greater than described angle threshold, then determine not meet shooting condition, otherwise, more described angular acceleration and angular acceleration threshold value; If described angular acceleration is less than described angular acceleration threshold value, then determine to meet described shooting condition, otherwise, then determine not meet shooting condition.
According to another aspect of the invention, provide a kind of mobile terminal, comprise the filming apparatus in above-mentioned any one.
Pass through the present invention, adopt the parameter of timing acquisition motion state transducer, parameter according to described motion state transducer judges whether to meet shooting condition, and take according to judged result, solve shooting in correlation technique and easily produce the problem of useless photograph, and then reach the beneficial effect improving shooting quality.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the image pickup method according to the embodiment of the present invention;
Fig. 2 is the structural representation of the filming apparatus according to the embodiment of the present invention;
Fig. 3 is the another kind of structural representation of the filming apparatus according to the embodiment of the present invention;
Fig. 4 is the flow chart of photographing process flow process according to the preferred embodiment of the invention;
Fig. 5 is the flow chart monitoring handling process according to the preferred embodiment of the invention;
Fig. 6 is the flow chart of computing flow process according to the preferred embodiment of the invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiments provide a kind of image pickup method, Fig. 1 is the flow chart of the image pickup method according to the embodiment of the present invention, and as shown in Figure 1, the method comprises the following steps:
Step S102, the parameter of timing acquisition motion state transducer;
Step S104, the parameter according to described motion state transducer judges whether to meet shooting condition, and takes according to judged result.
By above-mentioned steps, solve shooting in correlation technique and easily produce the problem of useless photograph, there is the beneficial effect improving shooting quality.
In an Alternate embodiments of the present embodiment, described motion state transducer can comprise following one of at least: gravity sensor; Gyroscope.Certainly, in other implementations, described motion state transducer can also be other types transducer.
In an Alternate embodiments of the present embodiment, the parameter obtaining described motion state transducer can comprise following one of at least: the instantaneous velocity obtaining described gravity sensor; Obtain described gyrostatic angle and/or angular acceleration.By above-mentioned steps, can know whether mobile terminal is tending towards inactive state according to the instantaneous velocity of described gravity sensor, if be tending towards inactive state, meet shooting condition.In addition, can also judge whether mobile terminal is in stabilization state according to described gyrostatic angle and/or angular acceleration, if be in stabilization state, then described mobile terminal meets shooting condition.
In an Alternate embodiments of the present embodiment, according to the parameter of described motion state transducer judge whether to meet described shooting condition can comprise following one of at least: according to described location status, the location status judging mobile terminal according to described instantaneous velocity, judges whether described mobile terminal meets described shooting condition; Judge the dither state of described mobile terminal according to described angle and/or angular acceleration, judge whether described mobile terminal meets described shooting condition according to described dither state.By above-mentioned steps, can judge whether mobile terminal meets described shooting condition exactly according to the location status of mobile terminal and/or dither state.
In an Alternate embodiments of the present embodiment, the parameter obtaining described motion state transducer can comprise following one of at least: more described instantaneous velocity and threshold speed, if described instantaneous velocity is greater than described threshold speed, then determine not meet shooting condition, otherwise, relatively angle difference and angle threshold, wherein, described angle difference is the difference between the described gyrostatic angle of current acquisition and the front described gyrostatic angle once obtained; If described angle difference is greater than described angle threshold, then determine not meet shooting condition, otherwise, more described angular acceleration and angular acceleration threshold value; If described angular acceleration is less than described angular acceleration threshold value, then determine to meet described shooting condition, otherwise, then determine not meet shooting condition.By above-mentioned steps, the speeds control of gravity sensor and gyrostatic Angle ambiguity can be utilized, the effective right moment for camera controlling user's shooting, thus photo suitable under shooting on suitable opportunity, and then can be good at improving Consumer's Experience.
In an Alternate embodiments of the present embodiment, before gravity sensor described in timing acquisition and/or described gyrostatic parameter, described method can also comprise: the timing pre-setting threshold value and/or described timer, wherein, described threshold value comprises: threshold speed, for judging whether described gravity sensor meets described shooting condition; And/or angle threshold and angular acceleration threshold value, for judging whether described gyroscope meets described shooting condition.By above-mentioned steps, threshold value and timer can be pre-set, to judge shooting condition.
The embodiment of the present invention additionally provides a kind of filming apparatus, and Fig. 2 is the structural representation of the filming apparatus according to the embodiment of the present invention, and as shown in Figure 2, this device comprises:
Monitoring module 202, for the parameter of timing acquisition motion state transducer;
Computing module 204, for judging whether to meet shooting condition according to the parameter of described motion state transducer;
Taking module 206, for taking according to judged result.
In an Alternate embodiments of the present embodiment, described motion state transducer can comprise following one of at least: gravity sensor; Gyroscope.
In an Alternate embodiments of the present embodiment, described monitoring module 202 can also be used for following one of at least: the instantaneous velocity obtaining described gravity sensor; Obtain described gyrostatic angle and/or angular acceleration.
In an Alternate embodiments of the present embodiment, described computing module 204 can also be used for: more described instantaneous velocity and threshold speed, if described instantaneous velocity is greater than described threshold speed, then determine not meet shooting condition, otherwise, relatively angle difference and angle threshold, wherein, described angle difference is the difference between the described gyrostatic angle of current acquisition and the front described gyrostatic angle once obtained; If described angle difference is greater than described angle threshold, then determine not meet shooting condition, otherwise, more described angular acceleration and angular acceleration threshold value; If described angular acceleration is less than described angular acceleration threshold value, then determine to meet described shooting condition, otherwise, then determine not meet shooting condition.
In an Alternate embodiments of the present embodiment, described computing module 204 can also be used for following one of at least: according to described location status, the location status judging described device according to described instantaneous velocity, judges whether described device meets described shooting condition; Judge the dither state of described device according to described angle and/or angular acceleration, judge whether described device meets described shooting condition according to described dither state.
In an Alternate embodiments of the present embodiment, as shown in Figure 3, described device also comprises and arranges module 208, for pre-setting the timing of threshold value and/or described timer, wherein, described threshold value comprises: threshold speed, for judging whether described gravity sensor meets described shooting condition; And/or angle threshold and angular acceleration threshold value, for judging whether described gyroscope meets described shooting condition.
The embodiment of the present invention additionally provides a kind of mobile terminal, comprises the filming apparatus that the embodiment of the present invention provides.
The image pickup method that the embodiment of the present invention provides can be applied to burst mode, also can be applied to automatic shooting pattern.For burst mode, will be described in detail below.
Preferred embodiment one
Embodiments provide a kind of preferred continuous shooting method, the method utilize gyroscope to monitor in real time angle that mobile terminal turns over and angular acceleration, gravity sensor is utilized to monitor the instantaneous velocity of mobile terminal in real time, and according to gyrostatic angle and angular acceleration, and/or, the instantaneous velocity of gravity sensor calculates suitable photo opportunity, then notifies that mobile terminal is taken.The method mainly comprises three handling processes: photographing process flow process, monitoring handling process and computing flow process.
Fig. 4 is the flow chart of photographing process flow process according to the preferred embodiment of the invention, and as shown in Figure 4, this flow process comprises the following steps:
Step S402, starts mobile terminal, enters photograph preview interface, selects burst mode.
Step S404, opens processing threads of taking pictures.
Processing threads of taking pictures is used for receiving message such as shooting message, shooting event etc., and performs photographing instruction.
Step S406, waits for the arrival of news.
Taking pictures in processing threads, wait for the arrival of news, such as etc. event to be captured and/or computing module pass the shooting message of coming.
Step S408, judges type of message.
If received message is shooting message and/or shooting event, then perform step S410, otherwise process ends, such as, if the message received has been continuous shooting message or has terminated shooting event, then direct process ends.
Step S410, starts timer.
If receive shooting event, namely detect that user clicks shooting push button, or receive shooting message, then start timer.The reservation threshold of timer can default setting be one second, and user also can this predetermined threshold self-defined.The object starting shooting timer is convenient to user's previewing photos.
Step S412, judges whether timer arrives predetermined threshold.
Judge whether timer arrives reservation threshold, if timer arrives predetermined threshold, namely whether arrive timing, then perform step S414.If do not arrive predetermined threshold, then continue poll timer.
Step S414, takes pictures and stores.
When timer arrives predetermined threshold, take pictures and store this photo.Afterwards, perform step S406, enter thread waits link, the arrival of the message to be captured such as continuation and/or shooting event.
Can be found out by above step, the present embodiment, by establishment one shooting thread, ceaselessly receives the message that user and computing module pass in thread, performs shooting and preserves the operation of photo.The present embodiment utilizes the mode of thread to improve execution efficiency.
Fig. 5 is the flow chart monitoring handling process according to the preferred embodiment of the invention, and as shown in Figure 5, this flow process comprises the following steps:
Step S502, opens gyroscope, makes it normal work, for obtaining gyrostatic angle and angular acceleration is prepared.
Step S504, opens gravity sensor, making it normal work, preparing for obtaining instantaneous velocity.
Step S506, opens monitoring thread.
Monitoring thread is a thread newly opened, and performs when opening burst mode, is used for obtaining gravity sensor instantaneous velocity, and gyroscope angle and angular acceleration.
Step S508, obtains the instantaneous velocity of gravity sensor.
Gravity sensor obtains instantaneous velocity, comprises X, Y, the speed in Z axis 3 directions.
Step S510, obtains gyrostatic angle and angular acceleration.
While gravity sensor obtains its instantaneous velocity, gyroscope obtains its angle and angular acceleration.
Step S512, judges whether continuous shooting terminates.
Judge whether continuous shooting terminates, if continuous shooting terminates, then process ends, otherwise perform step S514.
Step S514, preserves and transmits data.
Preserve the data obtained, and these data are passed to the interface of computing flow process.
After data pass to computing flow process, monitoring thread enters wait state.After monitoring thread waits for the time such as 50ms preset, perform step S508.
Can be found out by above step, the monitoring thread of the present embodiment is followed and is opened burst mode startup.The instantaneous velocity of a mobile terminal movement is obtained by every such as 50ms at regular intervals, and mobile terminal rotate angle and angular acceleration, and these data are preserved and passes to computing flow process and calculate, often open the best right moment for camera of photo to be used for intelligent positioning.About the concrete steps of computing flow process, will be explained below.
Fig. 6 is the flow chart of computing flow process according to the preferred embodiment of the invention, and as shown in Figure 6, this flow process comprises the following steps:
Step S602, opens computational threads.
This computational threads is used for processing the data that pass over of monitoring thread.
Step S604, obtains the instantaneous velocity of gravity sensor.
Obtain the instantaneous velocity of the gravity sensor that monitoring thread passes over.
Step S606, judges whether instantaneous velocity is less than threshold speed.
Instantaneous velocity is for judging the location status of mobile terminal.The threshold speed pre-set can be defaulted as 5 mm/second, and user also self-definedly can arrange this threshold speed.Instantaneous velocity comprises X, Y, the speed in Z axis 3 directions.
The instantaneous velocity comparing gravity sensor and the threshold speed preset, if described instantaneous velocity is less than described threshold speed, show that mobile terminal is tending towards inactive state, meet continuous shooting condition, perform step S608, otherwise, explanation mobile terminal is kept in motion, and do not meet continuous shooting condition, computational threads enters wait state, the data that wait-receiving mode monitoring thread passes over next time, perform step S604.
Step S608, obtains gyrostatic angle and angular acceleration.
The gyroscope angle that the instantaneous velocity obtaining monitoring thread and gravity sensor synchronously passes over and angular acceleration.
Step S610, judges whether angle difference is less than angle threshold.
Angle difference is the difference between the described gyrostatic angle of current acquisition and the front described gyrostatic angle once obtained.Angle threshold is for judging whether mobile terminal is in stabilization state, and can default setting be 5 °, certain user also self-definedly can arrange this angle threshold.
Judge whether gyrostatic angle difference is less than angle threshold values, if be less than, then continued step S612, judge angular acceleration, otherwise, then show that mobile terminal is current and be not in stabilization state, do not meet continuous shooting condition, computational threads poll, perform step S608.
Step S612, judges whether gyroscope angular acceleration is less than angular acceleration threshold value.
Angular acceleration threshold value is also for judging whether mobile terminal is in stabilization state, can default setting be 5 radian per seconds 2(rad/s 2), certain user also self-definedly can arrange this angular acceleration threshold value.
Judge whether gyroscope angular acceleration is less than angular acceleration threshold values, if gyroscope angular acceleration is less than angular acceleration threshold values, then illustrates that now mobile terminal is in stabilization state, be proper right moment for camera, namely meet continuous shooting condition, perform step S612.If gyroscope angular acceleration is greater than angular acceleration threshold values, then enter computational threads poll, perform step S608
Step S614, sends shooting message to shooting thread.
Reset the data received from monitoring thread, and send shooting message to shooting thread, notice shooting thread is taken.
In the present embodiment, thread poll refers to and continues to obtain gyroscope angle and angular acceleration, judges mobile terminal state.Thread waits refers to the data waiting for that monitoring thread next time sends over, to be used for calculating right moment for camera, namely judges whether to meet continuous shooting condition.
Can be found out by above step, the computational threads of the present embodiment is followed and is opened burst mode startup.After obtaining the instantaneous velocity of the gravity sensor that monitoring thread passes over and gyroscope angle, angular acceleration, these data are processed, determine the best right moment for camera often opening photo, and send shooting message to shooting thread, to reduce the generation of useless photograph.
Preferred embodiment two
The embodiment of the present invention additionally provides a kind of continuous shooting device, and as shown in Figure 2, this continuous shooting device comprises:
Taking module 202, major function receives shooting event and shooting message, and when receiving shooting event or shooting message, taking pictures and storing this photo.Wherein, shooting message is that computing module 206 is judging that the situation meeting continuous shooting condition sends to taking module 202, and shooting event detects that user presses the event that shooting push button etc. starts shooting.
Monitoring module 204, is combined by gravity sensor and gyroscope, obtains speed and gyroscope angle, the angular acceleration of a gravity sensor at regular intervals, and records, reach computing module 206.
Computing module 206, the speed of the gravity sensor sent according to monitoring module 204, gyroscope angle and angular acceleration calculate, judge whether to meet continuous shooting condition, if meet continuous shooting condition, then send shooting message to taking module 202, if do not meet continuous shooting condition, then continue to wait for that monitoring module 204 passes the data of coming and calculates next time.
As can be seen from the above description, present invention achieves following technique effect: present a novel burst mode to user, effectively reduce the generation of useless photograph, promote vision and the experience of user.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. an image pickup method, is characterized in that, comprising:
The parameter of timing acquisition motion state transducer;
Parameter according to described motion state transducer judges whether to meet shooting condition, and takes according to judged result.
2. method according to claim 1, is characterized in that, described motion state transducer comprise following one of at least: gravity sensor; Gyroscope.
3. method according to claim 2, is characterized in that, the parameter obtaining described motion state transducer comprise following one of at least:
Obtain the instantaneous velocity of described gravity sensor;
Obtain described gyrostatic angle and/or angular acceleration.
4. method according to claim 3, is characterized in that, according to the parameter of described motion state transducer judge whether to meet described shooting condition comprise following one of at least:
Judge the location status of mobile terminal according to described instantaneous velocity, judge whether described mobile terminal meets described shooting condition according to described location status;
Judge the dither state of described mobile terminal according to described angle and/or angular acceleration, judge whether described mobile terminal meets described shooting condition according to described dither state.
5. method according to claim 3, is characterized in that, judges whether that meeting described shooting condition comprises according to the parameter of described motion state transducer:
More described instantaneous velocity and threshold speed, if described instantaneous velocity is greater than described threshold speed, then determine not meet shooting condition, otherwise, relatively angle difference and angle threshold, wherein, described angle difference is the difference between the described gyrostatic angle of current acquisition and the front described gyrostatic angle once obtained;
If described angle difference is greater than described angle threshold, then determine not meet shooting condition, otherwise, more described angular acceleration and angular acceleration threshold value;
If described angular acceleration is less than described angular acceleration threshold value, then determine to meet described shooting condition, otherwise, then determine not meet shooting condition.
6. a filming apparatus, is characterized in that, comprising:
Monitoring module, for the parameter of timing acquisition motion state transducer;
Computing module, for judging whether to meet shooting condition according to the parameter of described motion state transducer;
Taking module, for taking according to judged result.
7. device according to claim 6, is characterized in that, described motion state transducer comprise following one of at least: gravity sensor; Gyroscope.
8. device according to claim 7, is characterized in that, described monitoring module be used for following one of at least: the instantaneous velocity obtaining described gravity sensor; Obtain described gyrostatic angle and/or angular acceleration.
9. device according to claim 8, is characterized in that, described computing module be used for following one of at least:
Judge the location status of described device according to described instantaneous velocity, judge whether described device meets described shooting condition according to described location status;
Judge the dither state of described device according to described angle and/or angular acceleration, judge whether described device meets described shooting condition according to described dither state.
10. device according to claim 8, is characterized in that, described computing module also for:
More described instantaneous velocity and threshold speed, if described instantaneous velocity is greater than described threshold speed, then determine not meet shooting condition, otherwise, relatively angle difference and angle threshold, wherein, described angle difference is the difference between the described gyrostatic angle of current acquisition and the front described gyrostatic angle once obtained;
If described angle difference is greater than described angle threshold, then determine not meet shooting condition, otherwise, more described angular acceleration and angular acceleration threshold value;
If described angular acceleration is less than described angular acceleration threshold value, then determine to meet described shooting condition, otherwise, then determine not meet shooting condition.
11. 1 kinds of mobile terminals, comprise the filming apparatus according to any one of claim 6 to 10.
CN201310396360.3A 2013-09-03 2013-09-03 Shooting method, shooting device and mobile terminal Pending CN104427114A (en)

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PCT/CN2013/085310 WO2014169598A1 (en) 2013-09-03 2013-10-16 Photography method and device, and mobile terminal

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