CN103051836B - Mobile terminal stabilization photographic method and device - Google Patents

Mobile terminal stabilization photographic method and device Download PDF

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Publication number
CN103051836B
CN103051836B CN201210544233.9A CN201210544233A CN103051836B CN 103051836 B CN103051836 B CN 103051836B CN 201210544233 A CN201210544233 A CN 201210544233A CN 103051836 B CN103051836 B CN 103051836B
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CN
China
Prior art keywords
mobile terminal
transducer
stabilization
wobble information
acceleration
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CN201210544233.9A
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Chinese (zh)
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CN103051836A (en
Inventor
蔡德尊
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中兴通讯股份有限公司
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Priority to CN201210544233.9A priority Critical patent/CN103051836B/en
Publication of CN103051836A publication Critical patent/CN103051836A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/232Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor
    • H04N5/23248Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor for stable pick-up of the scene in spite of camera body vibration
    • H04N5/23251Motion detection
    • H04N5/23258Motion detection based on additional sensors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects

Abstract

The invention discloses a kind of mobile terminal stabilization photographic method and device, its method comprises step: obtain the instruction of stabilization function on; Obtain the wobble information of the mobile terminal that transducer detects; Judge whether the wobble information of described mobile terminal is less than default dithering threshold; When judging that the wobble information of described mobile terminal is less than default dithering threshold, obtain the image of camera shooting.The present invention is detected by the shake situation of transducer to mobile terminal, and the wobble information of detection is sent to the controller of mobile terminal, controller is when judging that wobble information is less than default dithering threshold, control camera is taken pictures, mobile terminal hardware only increases a small amount of transducer, merely add the module comparing dithering threshold at software section, hardware configuration and steps flow chart are all simple and easy to realize, and effectively improve the definition that mobile terminal takes pictures.<!--1-->

Description

Mobile terminal stabilization photographic method and device

Technical field

The present invention relates to technical field of mobile terminals, be related specifically to mobile terminal stabilization photographic method and device.

Background technology

Along with the function of intelligent mobile terminal is become stronger day by day, camera has become the hardware of the mobile terminal such as mobile phone, panel computer indispensability, along with the camera on mobile terminal is more and more high-end, the camera function of mobile terminal facilitates people and records things at one's side at any time, and mobile terminal is taken pictures can meet daily demand completely.But, because the major function of mobile terminal is still as communication equipment, its camera function is a kind of auxiliary function, even if the camera pixel on present intelligent mobile terminal is more and more higher, mobile terminal still cannot accomplish the function of the camera that specialty is taken pictures completely.Such as, when people walk about, mobile terminal shake is comparatively large, cannot shoot clear photograph, even take pictures when people stand, is also difficult to ensure that mobile terminal is motionless, causes the photo taken may cause image blurring because of mobile terminal shake.Meanwhile, because the software and hardware of mobile terminal self limits, some technology of ordinary camera can not be grafted directly in mobile terminal, and stabilization function when mobile terminal is taken pictures is very limited, and the photo of shooting is usually unsharp.

Summary of the invention

Main purpose of the present invention is effectively avoided because mobile terminal shake causes the mobile terminal stabilization photographic method and device of taking pictures fuzzy for providing a kind of.

The present invention proposes a kind of mobile terminal stabilization photographic method, comprises step:

Obtain the instruction of stabilization function on;

Obtain the wobble information of the mobile terminal that transducer detects;

Judge whether the wobble information of described mobile terminal is less than default dithering threshold;

When judging that the wobble information of described mobile terminal is less than default dithering threshold, obtain the image of camera shooting.

Preferably, described transducer comprises gyro sensor, and the wobble information of described mobile terminal comprises the angular velocity of rotation of mobile terminal, and described dithering threshold comprises angular velocity of rotation threshold value.

Preferably, also comprise before the step of the wobble information of mobile terminal that described acquisition transducer detects:

When the instruction of described stabilization function on is the stabilization function on instruction of ambulatory position, start the angular velocity of rotation that gyro sensor detects mobile terminal.

Preferably, described transducer comprises acceleration transducer, and the wobble information of described mobile terminal comprises the acceleration of mobile terminal, and described dithering threshold comprises acceleration rate threshold.

Preferably, also comprise before the step of the wobble information of mobile terminal that described acquisition transducer detects:

When the instruction of described stabilization function on is the stabilization function on instruction of standing state, start angular velocity of rotation and/or the acceleration of gyro sensor and/or acceleration transducer detection mobile terminal.

The present invention also proposes a kind of mobile terminal stabilization camera arrangement, comprising:

Instruction acquisition module, for obtaining the instruction of stabilization function on;

Detection module, for obtaining the wobble information of the mobile terminal that transducer detects;

Comparison module, for judging whether the wobble information of described mobile terminal is less than default dithering threshold;

Taking module, for when judging that the wobble information of described mobile terminal is less than default dithering threshold, obtains the image of camera shooting.

Preferably, described transducer comprises gyro sensor, and the wobble information of described mobile terminal comprises the angular velocity of rotation of mobile terminal, and described dithering threshold comprises angular velocity of rotation threshold value.

Preferably, described mobile terminal stabilization camera arrangement, also comprises transducer and starts module, during for being the stabilization function on instruction of ambulatory position when the instruction of described stabilization function on, starts the angular velocity of rotation of gyro sensor detection mobile terminal.

Preferably, described transducer comprises acceleration transducer, and the wobble information of described mobile terminal comprises the acceleration of mobile terminal, and described dithering threshold comprises acceleration rate threshold.

Preferably, described mobile terminal stabilization camera arrangement, also comprise transducer and start module, during for being the stabilization function on instruction of standing state when the instruction of described stabilization function on, start angular velocity of rotation and/or acceleration that gyro sensor and/or acceleration transducer detect mobile terminal.

The present invention is detected by the shake situation of transducer to mobile terminal, and the wobble information of detection is sent to the controller of mobile terminal, controller is when judging that wobble information is less than default dithering threshold, control camera is taken pictures, mobile terminal hardware only increases a transducer, merely add the module comparing dithering threshold at software section, hardware configuration and steps flow chart are all simple and easy to realize, and effectively improve the definition that mobile terminal takes pictures.

Accompanying drawing explanation

Fig. 1 is the flow chart of the first embodiment of mobile terminal stabilization photographic method of the present invention;

Fig. 2 is the flow chart of the second embodiment of mobile terminal stabilization photographic method of the present invention;

Fig. 3 is the flow chart of the 3rd embodiment of mobile terminal stabilization photographic method of the present invention;

Fig. 4 is the structural representation of the first embodiment of mobile terminal stabilization camera arrangement of the present invention;

Fig. 5 is the structural representation of the second embodiment of mobile terminal stabilization camera arrangement of the present invention.

The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.

Embodiment

Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

As shown in Figure 1, Fig. 1 is the flow chart of the first embodiment of mobile terminal stabilization photographic method of the present invention.The mobile terminal stabilization photographic method that the present embodiment is mentioned, comprising:

Step S10, obtains the instruction of stabilization function on;

The present embodiment after user starts camera camera function, automatically starting stabilization function, or by the manually opened stabilization function of user.

Step S20, obtains the wobble information of the mobile terminal that transducer detects;

Due to the shake of mobile terminal can comprise before and after, motion up and down, on the direction such as left and right, acceleration transducer can be adopted to obtain the relevant information of acceleration, the shake of mobile terminal also can comprise the motion of rotation, and gyro sensor (angular-rate sensor) can be adopted to obtain the relevant information of angular velocity of rotation.Therefore, transducer can be or both combination in gyro sensor (angular-rate sensor), acceleration transducer.When transducer is gyro sensor, the wobble information of mobile terminal is the angular velocity of rotation of mobile terminal; When transducer is acceleration transducer, the wobble information of mobile terminal is the acceleration of mobile terminal.

Step S30, judges whether the wobble information of mobile terminal is less than default dithering threshold;

Before mobile terminal dispatches from the factory, preset dithering threshold in a memory in the mobile terminal, when the wobble information of current mobile terminal is less than default dithering threshold, then illustrate that the chattering frequency of current mobile terminal is less, the obtained photo that now carries out taking pictures is relatively clear.When transducer is gyro sensor, dithering threshold is angular velocity of rotation threshold value; When transducer is acceleration transducer, dithering threshold is acceleration rate threshold.Can preset the dithering threshold of multiple class in memory, user, when carrying out stabilization function setting, can select the class of dithering threshold, to realize the demand of different situation to stabilization degree.

Step S40, when judging that the wobble information of mobile terminal is less than default dithering threshold, obtains the image of camera shooting.

Stabilization function can be applied in the situation that user manually takes pictures, when user presses shooting button, camera is not taken pictures at once, but when the controller of mobile terminal judges that the wobble information of current mobile terminal is less than default dithering threshold, again shooting instruction is sent to camera, controls camera and take pictures.In addition, stabilization function also can be applied in the situation that mobile terminal is set as automatic camera, and user takes button without the need to pressing, when judging that the wobble information of current mobile terminal is less than default dithering threshold by mobile terminal, send shooting instruction from trend camera, control camera and take pictures.

The present embodiment is detected by the shake situation of transducer to mobile terminal, and the wobble information of detection is sent to the controller of mobile terminal, controller is when judging that wobble information is less than default dithering threshold, control camera is taken pictures, mobile terminal hardware only increases a small amount of transducer, merely add the module comparing dithering threshold at software section, hardware configuration and steps flow chart are all simple and easy to realize, and effectively improve the definition that mobile terminal takes pictures.

As shown in Figure 2, Fig. 2 is the flow chart of the second embodiment of mobile terminal stabilization photographic method of the present invention.The present embodiment is based on embodiment illustrated in fig. 1, and be described in detail to the flow process of taking pictures when walking about, the mobile terminal stabilization photographic method of this embodiment comprises:

Step S10, obtains the instruction of stabilization function on;

Step S51, when the instruction of stabilization function on is the stabilization function on instruction of ambulatory position, starts the angular velocity of rotation that gyro sensor detects mobile terminal;

In the present embodiment, because user is when walking about, user must be comprised in mobile terminal shake and driving acceleration in mobile terminal direction of advance, now, without the need to using the acceleration of mobile terminal as wobble information, only need consider the angular velocity of rotation of mobile terminal.

Step S21, obtains the angular velocity of rotation of the mobile terminal that gyro sensor detects;

Step S31, judges whether the angular velocity of rotation of mobile terminal is less than default angular velocity of rotation threshold value;

Step S41, when judging that the angular velocity of rotation of mobile terminal is less than default angular velocity of rotation threshold value, obtains the image of camera shooting.

The present embodiment is for the situation of taking pictures when walking about, acceleration in user's direction of advance is got rid of outside wobble information, only using the angular velocity of rotation of mobile terminal as wobble information, effectively improve the definition that mobile terminal is taken pictures, and only a gyro sensor is increased on mobile terminal hardware, hardware configuration is simple and easy to realize.

As shown in Figure 3, Fig. 3 is the flow chart of the 3rd embodiment of mobile terminal stabilization photographic method of the present invention.The present embodiment is based on embodiment illustrated in fig. 1, and be described in detail to the flow process of taking pictures when standing, the mobile terminal stabilization photographic method of this embodiment comprises:

Step S10, obtains the instruction of stabilization function on;

Step S52, when the instruction of stabilization function on is the stabilization function on instruction of standing state, starts angular velocity of rotation and/or the acceleration of gyro sensor and/or acceleration transducer detection mobile terminal;

In the present embodiment, in the angular velocity of rotation of mobile terminal and acceleration or both combinations, when standing, can compare as mobile terminal wobble information and wobble information threshold value, to shoot clear photograph more by user.

Step S22, obtains angular velocity of rotation and/or the acceleration of the mobile terminal of gyro sensor and/or acceleration transducer detection;

Step S32, judge whether the angular velocity of rotation of mobile terminal is less than default angular velocity of rotation, and/or whether the acceleration of mobile terminal is less than default acceleration rate threshold;

Step S42, when judging that the angular velocity of rotation of mobile terminal is less than default angular velocity of rotation, and/or when the acceleration of mobile terminal is less than default acceleration rate threshold, obtains the image of camera shooting.

The present embodiment is for the situation of taking pictures when standing, using the angular velocity of rotation of mobile terminal and/or acceleration as wobble information, further increase the definition that mobile terminal is taken pictures, and only gyro sensor and/or acceleration transducer is increased on mobile terminal hardware, hardware configuration is simple and easy to realize.

As shown in Figure 4, Fig. 4 is the structural representation of the first embodiment of mobile terminal stabilization camera arrangement of the present invention.The mobile terminal stabilization camera arrangement of the present embodiment, comprising:

Instruction acquisition module 10, for obtaining the instruction of stabilization function on;

Detection module 20, for obtaining the wobble information of the mobile terminal that transducer detects;

Comparison module 30, for judging whether the wobble information of mobile terminal is less than default dithering threshold;

Taking module 40, for when judging that the wobble information of mobile terminal is less than default dithering threshold, obtains the image of camera shooting.

The present embodiment after user starts camera camera function, automatically starting stabilization function, or by the manually opened stabilization function of user.Due to the shake of mobile terminal can comprise before and after, motion up and down, on the direction such as left and right, acceleration transducer can be adopted to obtain the relevant information of acceleration, the shake of mobile terminal also can comprise the motion of rotation, and gyro sensor (angular-rate sensor) can be adopted to obtain the relevant information of angular velocity of rotation.Therefore, transducer can be or both combination in gyro sensor (angular-rate sensor), acceleration transducer.When transducer is gyro sensor, the wobble information of mobile terminal is the angular velocity of rotation of mobile terminal; When transducer is acceleration transducer, the wobble information of mobile terminal is the acceleration of mobile terminal.Before mobile terminal dispatches from the factory, preset dithering threshold in a memory in the mobile terminal, when the wobble information of current mobile terminal is less than default dithering threshold, then illustrate that the chattering frequency of current mobile terminal is less, the obtained photo that now carries out taking pictures is relatively clear.When transducer is gyro sensor, dithering threshold is angular velocity of rotation threshold value; When transducer is acceleration transducer, dithering threshold is acceleration rate threshold.Can preset the dithering threshold of multiple class in memory, user, when carrying out stabilization function setting, can select the class of dithering threshold, to realize the demand of different situation to stabilization degree.Stabilization function can be applied in the situation that user manually takes pictures, when user presses shooting button, camera is not taken pictures at once, but when the controller of mobile terminal judges that the wobble information of current mobile terminal is less than default dithering threshold, again shooting instruction is sent to camera, controls camera and take pictures.In addition, stabilization function also can be applied in the situation that mobile terminal is set as automatic camera, and user takes button without the need to pressing, when judging that the wobble information of current mobile terminal is less than default dithering threshold by mobile terminal, send shooting instruction from trend camera, control camera and take pictures.

The present embodiment is detected by the shake situation of transducer to mobile terminal, and the wobble information of detection is sent to the controller of mobile terminal, controller is when judging that wobble information is less than default dithering threshold, control camera is taken pictures, mobile terminal hardware only increases a small amount of transducer, merely add the module comparing dithering threshold at software section, hardware configuration and steps flow chart are all simple and easy to realize, and effectively improve the definition that mobile terminal takes pictures.

As shown in Figure 5, Fig. 5 is the structural representation of the second embodiment of mobile terminal stabilization camera arrangement of the present invention.The present embodiment, on basis embodiment illustrated in fig. 4, adds transducer and starts module 50, specifically comprise following situation:

When taking pictures when walking about, the stabilization function on instruction that instruction acquisition module 10 obtains is the stabilization function on instruction of ambulatory position, and transducer starts module 50 detects mobile terminal angular velocity of rotation for starting gyro sensor.In the present embodiment, because user is when walking about, user must be comprised in mobile terminal shake and driving acceleration in mobile terminal direction of advance, now, without the need to using the acceleration of mobile terminal as wobble information, only need consider the angular velocity of rotation of mobile terminal.The present embodiment is for the situation of taking pictures when walking about, acceleration in user's direction of advance is got rid of outside wobble information, only using the angular velocity of rotation of mobile terminal as wobble information, effectively improve the definition that mobile terminal is taken pictures, and only a gyro sensor is increased on mobile terminal hardware, hardware configuration is simple and easy to realize.

When taking pictures when standing, the stabilization function on instruction that instruction acquisition module 10 obtains is the stabilization function on instruction of standing state, and transducer starts module 50 for starting angular velocity of rotation and/or the acceleration of gyro sensor and/or acceleration transducer detection mobile terminal.In the present embodiment, in the angular velocity of rotation of mobile terminal and acceleration or both combinations, when standing, can compare as mobile terminal wobble information and wobble information threshold value, to shoot clear photograph more by user.The present embodiment is for the situation of taking pictures when standing, using the angular velocity of rotation of mobile terminal and/or acceleration as wobble information, further increase the definition that mobile terminal is taken pictures, and only gyro sensor and/or acceleration transducer is increased on mobile terminal hardware, hardware configuration is simple and easy to realize.

The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (8)

1. a mobile terminal stabilization photographic method, is characterized in that, comprises step:
Obtain the instruction of stabilization function on;
Obtain the wobble information of the mobile terminal that transducer detects;
Judge whether the wobble information of described mobile terminal is less than default dithering threshold;
When judging that the wobble information of described mobile terminal is less than default dithering threshold, obtain the image of camera shooting;
Described transducer comprises gyro sensor and acceleration transducer, and the wobble information of described mobile terminal comprises angular velocity of rotation and the acceleration of mobile terminal;
Also comprise before the step of the wobble information of the mobile terminal that described acquisition transducer detects:
When the instruction of described stabilization function on is the stabilization function on instruction of ambulatory position, starting gyro sensor for detecting the angular velocity of rotation of mobile terminal, closing the acceleration that acceleration transducer does not detect mobile terminal.
2. mobile terminal stabilization photographic method according to claim 1, it is characterized in that, described dithering threshold comprises angular velocity of rotation threshold value.
3. mobile terminal stabilization photographic method according to claim 2, it is characterized in that, described dithering threshold comprises acceleration rate threshold.
4. mobile terminal stabilization photographic method according to claim 3, is characterized in that, also comprises before the step of the wobble information of the mobile terminal that described acquisition transducer detects:
When the instruction of described stabilization function on is the stabilization function on instruction of standing state, starts gyro sensor and detect the angular velocity of rotation of mobile terminal and/or the acceleration of starting loop transducer detection mobile terminal.
5. a mobile terminal stabilization camera arrangement, is characterized in that, comprising:
Instruction acquisition module, for obtaining the instruction of stabilization function on;
Detection module, for obtaining the wobble information of the mobile terminal that transducer detects;
Comparison module, for judging whether the wobble information of described mobile terminal is less than default dithering threshold;
Taking module, for when judging that the wobble information of described mobile terminal is less than default dithering threshold, obtains the image of camera shooting;
Described transducer comprises gyro sensor and acceleration transducer, and the wobble information of described mobile terminal comprises angular velocity of rotation and the acceleration of mobile terminal;
Described mobile terminal stabilization camera arrangement also comprises transducer and starts module, during for being the stabilization function on instruction of ambulatory position when the instruction of described stabilization function on, start the angular velocity of rotation that gyro sensor detects mobile terminal, close the acceleration that acceleration transducer does not detect mobile terminal.
6. mobile terminal stabilization camera arrangement according to claim 5, it is characterized in that, described dithering threshold comprises angular velocity of rotation threshold value.
7. mobile terminal stabilization camera arrangement according to claim 6, it is characterized in that, described dithering threshold comprises acceleration rate threshold.
8. mobile terminal stabilization camera arrangement according to claim 7, it is characterized in that, described transducer starts module, time also for being the stabilization function on instruction of standing state when the instruction of described stabilization function on, starting gyro sensor and detecting the acceleration that the angular velocity of rotation of mobile terminal and/or starting loop transducer detect mobile terminal.
CN201210544233.9A 2012-12-14 2012-12-14 Mobile terminal stabilization photographic method and device CN103051836B (en)

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CN201210544233.9A CN103051836B (en) 2012-12-14 2012-12-14 Mobile terminal stabilization photographic method and device
PCT/CN2013/079331 WO2013167037A2 (en) 2012-12-14 2013-07-12 Anti-jitter shooting method and device for mobile terminal

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