CN105744164A - Photographing method and system for mobile terminal - Google Patents
Photographing method and system for mobile terminal Download PDFInfo
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- CN105744164A CN105744164A CN201610100616.5A CN201610100616A CN105744164A CN 105744164 A CN105744164 A CN 105744164A CN 201610100616 A CN201610100616 A CN 201610100616A CN 105744164 A CN105744164 A CN 105744164A
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- mobile terminal
- angular velocity
- acceleration
- threshold value
- photographic head
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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
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/681—Motion detection
- H04N23/6812—Motion detection based on additional sensors, e.g. acceleration sensors
Abstract
The invention discloses a photographing method and a photographing system for a mobile terminal. The method comprises the steps of judging whether the camera of the mobile terminal is enabled, and if yes, acquiring the acceleration and angular speed of the mobile terminal; when the acceleration does not exceed an acceleration threshold and the angular speed does not exceed an angular speed threshold, controlling the camera to photograph, and storing the corresponding picture; and through analyzing the shaking situation of the user during photographing, selecting the best opportunity for imaging, photographing and thereby obtaining a clear picture. According to the method, the requirement that each photographed and stored picture is clear is met under the premise of not increasing cost, not damaging picture quality and not increasing hardware cost, thus bringing great convenience.
Description
Technical field
The present invention relates to technical field of mobile terminals, in particular a kind of mobile terminal photographic method and system.
Background technology
Popularizing along with large-screen mobile phone at present, the image quality of taking pictures of mobile phone is also increasingly be subject to the attention of consumer.But a lot of users are by the fuzzy probability of taking pictures that can there is certain probability in mobile phone photograph process, if the picture blur of key, feeling unfortunately, this fuzzy a big chunk reason is in that pressing the hands gripping mobile phone soon behind the door there occurs that shake causes the fuzzy of imaging.Fuzzy method of taking pictures manually is caused in order to eliminate, a lot of manufacturers are all proposed the anti-anti-hand shaking improving ISO and obtain software algorithm, or adopt the hardware processing method of optical anti-vibration (OIS), two kinds of methods or add noise, image quality is declined, or improves the hardware cost of product.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is in that, it is provided that a kind of mobile terminal photographic method and system, it is intended to solves existing mobile terminal in the processing method of the shake that solves to take pictures and there is the problem adding noise or improving hardware cost.
This invention address that the technical scheme that technical problem adopts is as follows:
A kind of mobile terminal photographic method, wherein, including:
A, judge whether the photographic head of mobile terminal is activated, if it has, then obtain acceleration and the angular velocity of mobile terminal；
B, when described acceleration is not above acceleration rate threshold and described angular velocity is not above angular velocity threshold value, control photographic head and take pictures, preserve corresponding picture.
Described mobile terminal photographic method, wherein, described step A specifically includes:
A1, detection mobile terminal shoot button whether clicked, if it has, then the accekeration of the acceleration transducer detection mobile terminal carried by mobile terminal, the gyro sensor carried by mobile terminal detects the magnitude of angular velocity of mobile terminal.
Described mobile terminal photographic method, wherein, also included before described step A:
A0, under dark-state environment, grip mobile terminal and take pictures facing to ISO12233 graph card, until photographed image clear time, read accekeration now and magnitude of angular velocity, being respectively set as can the acceleration threshold values of blur-free imaging and angular velocity threshold value.
Described mobile terminal photographic method, wherein, described step B specifically includes:
B1, when described acceleration is less than or equal to acceleration rate threshold, and when described angular velocity is less than or equal to angular velocity threshold value, controls photographic head and complete to take pictures, preserve corresponding picture.
Described mobile terminal photographic method, wherein, described step B also includes:
B2, when described acceleration more than acceleration rate threshold or described angular velocity more than angular velocity threshold value time, statistics shoot button clicked persistent period, it is judged that whether overtime threshold value of described persistent period, if yes, then control photographic head to take pictures, preserve corresponding picture.
A kind of mobile terminal camera system, wherein, including:
Speed acquiring module, for judging whether the photographic head of mobile terminal is activated, if it has, then obtain acceleration and the angular velocity of mobile terminal；
Analyze photo module, for when described acceleration is not above acceleration rate threshold and described angular velocity is not above angular velocity threshold value, controlling photographic head and take pictures, preserve corresponding picture.
Described mobile terminal camera system, wherein, described speed acquiring module includes:
Speed acquiring unit, whether the shoot button for detecting mobile terminal is clicked, if it has, then the accekeration of the acceleration transducer detection mobile terminal carried by mobile terminal, by the magnitude of angular velocity of the gyro sensor detection mobile terminal that mobile terminal carries.
Described mobile terminal camera system, wherein, also includes:
Threshold setting module, under dark-state environment, grips mobile terminal and takes pictures facing to ISO12233 graph card, until photographed image clear time, read accekeration now and magnitude of angular velocity, being respectively set as can the acceleration threshold values of blur-free imaging and angular velocity threshold value.
Described mobile terminal camera system, wherein, described analysis photo module includes:
Analyze photographing unit, be used for when described acceleration is less than or equal to acceleration rate threshold, and when described angular velocity is less than or equal to angular velocity threshold value, controls photographic head and complete to take pictures, preserve corresponding picture.
Described mobile terminal camera system, wherein, described analysis photo module also includes:
Time photographing unit, for when described acceleration more than acceleration rate threshold or described angular velocity more than angular velocity threshold value time, the persistent period that statistics shoot button is clicked, judge whether overtime threshold value of described persistent period, take pictures if it has, then control photographic head, preserve corresponding picture.
A kind of mobile terminal photographic method provided by the present invention and system, efficiently solve existing mobile terminal solve take pictures shake processing method exist add noise or improve hardware cost problem, by judging whether the photographic head of mobile terminal is activated, if it has, then obtain acceleration and the angular velocity of mobile terminal；When described acceleration is not above acceleration rate threshold and described angular velocity is not above angular velocity threshold value, controls photographic head and take pictures, preserve corresponding picture；User's hand shaking situation when taking pictures of analyzing selects carry out imaging best opportunity, can obtain taking pictures 100% blur-free imaging probability, and neither increase cost, image quality is not sacrificed yet, completing every picture preserved of taking pictures under the premise not increasing hardware cost is all requirement clearly, brings and greatly facilitates.
Accompanying drawing explanation
Fig. 1 is the flow chart of mobile terminal photographic method preferred embodiment provided by the invention.
Fig. 2 is the schematic diagram of acceleration and angular velocity in mobile terminal photographic method provided by the invention.
Fig. 3 is the structured flowchart of mobile terminal camera system preferred embodiment provided by the invention.
Detailed description of the invention
The present invention provides a kind of mobile terminal photographic method and system, and for making the purpose of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Refer to the flow chart that Fig. 1, Fig. 1 are mobile terminal photographic method preferred embodiment provided by the invention, as it can be seen, said method comprising the steps of:
Step S100, judge whether the photographic head of mobile terminal is activated, if it has, then obtain acceleration and the angular velocity of mobile terminal；
Step S200, when described acceleration is not above acceleration rate threshold and described angular velocity is not above angular velocity threshold value, control photographic head and take pictures, preserve corresponding picture.
Below in conjunction with specific embodiment, above-mentioned steps is described in detail.
In the step s 100, it is judged that whether the photographic head of mobile terminal is activated, if it has, then obtain acceleration and the angular velocity of mobile terminal.Specifically, described mobile terminal is the terminals such as mobile phone, panel computer, handheld device.When mobile terminal camera is activated, detect acceleration and the angular velocity of mobile terminal.Such as judge that whether the shoot button of mobile terminal is clicked, if clicked, then show to start photographic head.
When practical application, can judge whether photographic head is activated by whether the shoot button of detection mobile terminal is clicked, if yes, the accekeration of the acceleration transducer detection mobile terminal then carried by mobile terminal, by the magnitude of angular velocity of the gyro sensor detection mobile terminal that mobile terminal carries.
About accekeration and magnitude of angular velocity, specifically referring to Fig. 2, Fig. 2 is the schematic diagram of acceleration and angular velocity in mobile terminal photographic method provided by the invention.For mobile terminal for mobile phone, the acceleration transducer of mobile phone and gyro sensor.The acceleration information A (ax, ay, az) in acceleration transducer detection tri-directions of X, Y, Z, (r, y, p), concrete direction is as schematically shown in Figure 2 for the angular velocity R in three directions of gyro sensor detection.Therefore, user is handshaking causes that fuzzy situation of taking pictures shaken by mobile phone, it is possible to obtained by acceleration transducer and gyro sensor, i.e. acceleration A and two variablees of angular velocity R.
In described step S200, when described acceleration is not above acceleration rate threshold and described angular velocity is not above angular velocity threshold value, controls photographic head and take pictures, preserve corresponding picture.Specifically, when described acceleration is less than or equal to acceleration rate threshold, and when described angular velocity is less than or equal to angular velocity threshold value, controls photographic head and complete to take pictures, preserve corresponding picture.
Setting about threshold value, it is preferable that also included before described step S100:
S90, under dark-state environment, grip mobile terminal and take pictures facing to ISO12233 graph card, until photographed image clear time, read accekeration now and magnitude of angular velocity, being respectively set as can the acceleration threshold values of blur-free imaging and angular velocity threshold value.
Specifically, threshold values R ' about the threshold values A ' and angular velocity R that how to set acceleration A, the blur-free imaging so that taking pictures, specifically, light is more dark, and hand shaking causes that the impact of image blur is more big, does not obscure if taken pictures under the hand shaking degree set under dark-state light, then other brighter environment under identical degree of jitter can both blur-free imaging, so A and R threshold value setting is as follows: dark-state light: 10lux；Graph card: ISO12233.Photographic method: hands grips mobile phone and takes pictures facing to ISO12233 graph card, can accept until photographing image definition, read accekeration A ' now (ax ', ay ', az ') and magnitude of angular velocity R ' (r ', y ', p ') data, set it respectively as can the hand shaking acceleration threshold values of blur-free imaging and angular velocity threshold value.
When practical application, when user uses photographic head application to click shoot button, the accekeration A1 and magnitude of angular velocity R1 of read sensor, judge that current A1 and R1 meets the jitter conditions of action of performing to take pictures, i.e. A1≤A ' and R1≤R ', satisfied then entrance picture-taking imaging system completes to take pictures and preserve photo.
Preferably, described step S200 also includes: when described acceleration more than acceleration rate threshold or described angular velocity more than angular velocity threshold value time, the persistent period that statistics shoot button is clicked, judge whether overtime threshold value of described persistent period, if yes, then control photographic head to take pictures, preserve corresponding picture.
Specifically, in order to avoid prevent overdue hit shoot button and cannot meet always photographical condition enter judge endless loop, set a safety time T, when click shoot button time delay t >=T time, it is possible to enter into picture-taking imaging system and complete action of taking pictures.It is to say, as A1 > A ' or R1 > R ' time, for prevention user's false touch shoot button, statistics clicks persistent period t after shoot button event, as t >=T time, enter picture-taking imaging system and complete to take pictures, preserve picture.Specifically can be configured as required about T value, such as 0.5s.
Mobile terminal photographic method provided by the invention, take pictures by carrying out gripping under grasp harsh environment (10lux dark-state), find the unambiguous manual threshold values of imaging, by this threshold values and actual take pictures time manual case compare, when hand shaking degree is weaker than this threshold values, then can assert that the photo taken must be situation, complete imaging of taking pictures, preserve clear picture.Method is simple, and completing every picture preserved of taking pictures under the premise not increasing hardware cost is all requirement clearly.
Based on above-mentioned mobile terminal photographic method, the embodiment of the present invention additionally provides a kind of mobile terminal camera system, as it is shown on figure 3, include:
Speed acquiring module 10, for judging whether the photographic head of mobile terminal is activated, if it has, then obtain acceleration and the angular velocity of mobile terminal；Specifically as described in step S100；
Analyze photo module 20, for when described acceleration is not above acceleration rate threshold and described angular velocity is not above angular velocity threshold value, controlling photographic head and take pictures, preserve corresponding picture；Specifically as described in step S200.
Further, described speed acquiring module 10 includes:
Speed acquiring unit, whether the shoot button for detecting mobile terminal is clicked, if it has, then the accekeration of the acceleration transducer detection mobile terminal carried by mobile terminal, by the magnitude of angular velocity of the gyro sensor detection mobile terminal that mobile terminal carries.
Further, described mobile terminal camera system, also include:
Threshold setting module, under dark-state environment, grips mobile terminal and takes pictures facing to ISO12233 graph card, until photographed image clear time, read accekeration now and magnitude of angular velocity, being respectively set as can the acceleration threshold values of blur-free imaging and angular velocity threshold value.
Further, described analysis photo module 20 includes:
Analyze photographing unit, be used for when described acceleration is less than or equal to acceleration rate threshold, and when described angular velocity is less than or equal to angular velocity threshold value, controls photographic head and complete to take pictures, preserve corresponding picture.
Further, described analysis photo module 20 also includes:
Time photographing unit, for when described acceleration more than acceleration rate threshold or described angular velocity more than angular velocity threshold value time, the persistent period that statistics shoot button is clicked, judge whether overtime threshold value of described persistent period, take pictures if it has, then control photographic head, preserve corresponding picture.
Described mobile terminal is the terminals such as mobile phone, handheld device, panel computer.
In sum, a kind of mobile terminal photographic method provided by the invention and system, by judging whether the photographic head of mobile terminal is activated, if it has, then the acceleration of acquisition mobile terminal and angular velocity；When described acceleration is not above acceleration rate threshold and described angular velocity is not above angular velocity threshold value, controls photographic head and take pictures, preserve corresponding picture；User's hand shaking situation when taking pictures of analyzing selects carry out imaging best opportunity, take pictures and can obtain blur-free imaging, and neither increase cost, also do not sacrifice image quality, completing every picture preserved of taking pictures under the premise not increasing hardware cost is all requirement clearly, brings and greatly facilitates.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, it is possible to improved according to the above description or convert, all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. a mobile terminal photographic method, it is characterised in that including:
A, judge whether the photographic head of mobile terminal is activated, if it has, then obtain acceleration and the angular velocity of mobile terminal；
B, when described acceleration is not above acceleration rate threshold and described angular velocity is not above angular velocity threshold value, control photographic head and take pictures, preserve corresponding picture.
2. mobile terminal photographic method according to claim 1, it is characterised in that described step A specifically includes:
A1, detection mobile terminal shoot button whether clicked, if it has, then the accekeration of the acceleration transducer detection mobile terminal carried by mobile terminal, the gyro sensor carried by mobile terminal detects the magnitude of angular velocity of mobile terminal.
3. mobile terminal photographic method according to claim 1, it is characterised in that also included before described step A:
A0, under dark-state environment, grip mobile terminal and take pictures facing to ISO12233 graph card, until photographed image clear time, read accekeration now and magnitude of angular velocity, being respectively set as can the acceleration threshold values of blur-free imaging and angular velocity threshold value.
4. mobile terminal photographic method according to claim 1, it is characterised in that described step B specifically includes:
B1, when described acceleration is less than or equal to acceleration rate threshold, and when described angular velocity is less than or equal to angular velocity threshold value, controls photographic head and complete to take pictures, preserve corresponding picture.
5. mobile terminal photographic method according to claim 2, it is characterised in that described step B also includes:
B2, when described acceleration more than acceleration rate threshold or described angular velocity more than angular velocity threshold value time, statistics shoot button clicked persistent period, it is judged that whether overtime threshold value of described persistent period, if yes, then control photographic head to take pictures, preserve corresponding picture.
6. a mobile terminal camera system, it is characterised in that including:
Speed acquiring module, for judging whether the photographic head of mobile terminal is activated, if it has, then obtain acceleration and the angular velocity of mobile terminal；
Analyze photo module, for when described acceleration is not above acceleration rate threshold and described angular velocity is not above angular velocity threshold value, controlling photographic head and take pictures, preserve corresponding picture.
7. mobile terminal camera system according to claim 6, it is characterised in that described speed acquiring module includes:
Speed acquiring unit, whether the shoot button for detecting mobile terminal is clicked, if it has, then the accekeration of the acceleration transducer detection mobile terminal carried by mobile terminal, by the magnitude of angular velocity of the gyro sensor detection mobile terminal that mobile terminal carries.
8. mobile terminal camera system according to claim 6, it is characterised in that also include:
Threshold setting module, under dark-state environment, grips mobile terminal and takes pictures facing to ISO12233 graph card, until photographed image clear time, read accekeration now and magnitude of angular velocity, being respectively set as can the acceleration threshold values of blur-free imaging and angular velocity threshold value.
9. mobile terminal camera system according to claim 6, it is characterised in that described analysis photo module includes:
Analyze photographing unit, be used for when described acceleration is less than or equal to acceleration rate threshold, and when described angular velocity is less than or equal to angular velocity threshold value, controls photographic head and complete to take pictures, preserve corresponding picture.
10. mobile terminal camera system according to claim 7, it is characterised in that described analysis photo module also includes:
Time photographing unit, for when described acceleration more than acceleration rate threshold or described angular velocity more than angular velocity threshold value time, the persistent period that statistics shoot button is clicked, judge whether overtime threshold value of described persistent period, take pictures if it has, then control photographic head, preserve corresponding picture.
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| CN107613214A (en) * | 2017-10-25 | 2018-01-19 | 广东工业大学 | A kind of camera interface access method, apparatus and system |
| WO2020001545A1 (en) * | 2018-06-29 | 2020-01-02 | 深圳市大疆创新科技有限公司 | Moving body, focusing control method, program and recording medium |
| CN111664857A (en) * | 2019-03-07 | 2020-09-15 | 三菱重工业株式会社 | Self-position estimating device, self-position estimating method and recording medium |
| CN112383716A (en) * | 2020-12-10 | 2021-02-19 | 武汉大学 | System and method for obtaining clear photos based on continuous automatic photographing of smart phone |
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| CN106161959A (en) * | 2016-08-25 | 2016-11-23 | 乐视控股（北京）有限公司 | Photographic method, device and mobile terminal |
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| CN111664857B (en) * | 2019-03-07 | 2023-09-19 | 三菱重工业株式会社 | Self-position estimating device, self-position estimating method, and recording medium |
| CN112383716A (en) * | 2020-12-10 | 2021-02-19 | 武汉大学 | System and method for obtaining clear photos based on continuous automatic photographing of smart phone |
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