CN103607533A - Photographing method and device suitable for zero-lag shutter - Google Patents
Photographing method and device suitable for zero-lag shutter Download PDFInfo
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- CN103607533A CN103607533A CN201310641256.6A CN201310641256A CN103607533A CN 103607533 A CN103607533 A CN 103607533A CN 201310641256 A CN201310641256 A CN 201310641256A CN 103607533 A CN103607533 A CN 103607533A
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Abstract
The invention discloses a photographing method and device suitable for a zero-lag shutter. The photographing device suitable for the zero-lag shutter captures N initial pictures continuously and fast when the photographing device is used for photographing, the N initial pictures are continuously stored in pre-developed N buffer areas, finally the optimal picture is selected from the N initial pictures pre-stored in the buffer areas by using an optimal picture selecting algorithm and servers as a result picture to be output, and therefore the success rate of photographing is improved.
Description
Technical field
The present invention relates to a kind of photographic method and device, particularly a kind of photographic method applicable to zero-lag shutter and device.
Background technology
Current hand-held photographing device, when pressing shutter and take pictures, user because the effect of power more or less all can cause that the movement of machine produces the variations such as float, photo angle or whole photometry and makes to export picture Scene to present destroyed photographic effect natural not while causing taking pictures, greatly reduces the success rate of taking pictures.
Summary of the invention
The present invention is for addressing the above problem, a kind of photographic method and device that is applicable to zero-lag shutter is provided, when it is taken pictures by retaining in advance with the multiple pictures of a scene and therefrom intelligence choose optimum photo as the output of taking pictures, thereby the success rate that as much as possible raising is taken pictures.
For achieving the above object, the invention provides a kind of photographic method that is applicable to zero-lag shutter, it is characterized in that, comprise the following steps:
A. start photographing module, while taking pictures, catch rapidly continuously N and open initial picture;
B. open up in advance N buffering area, the described N that preservation photographing module is caught opens initial picture;
C. the described N that utilizes optimum picture selection algorithm to preserve in advance from buffering area opens and initial picture, selects the as a result of picture output of an optimum picture.
As a kind of preferred embodiment, described photographing module is the independently combination of camera module or camera module and image processor.
As a kind of preferred embodiment, in described steps A, catching rapidly continuously N, to open initial picture be in seconds, and the N of catching per second opens initial picture.
As a kind of preferred embodiment, in described steps A photographing module when taking pictures in zero propagation shutter mode.
As a kind of preferred embodiment, described in the N that catches to open initial picture be full-scale picture.
As a kind of preferred embodiment, when the Output Size of the result picture in described step C need to be less than described initial picture size, the initial picture that can come convergent-divergent photographing module to catch by the image zooming instrument of hardware or software, to obtain required result picture.
As a kind of preferred embodiment, the upper limit of described initial picture number N is to be subject to limit bandwidth that the link bandwidth of inner each module of photographing module and photographing module and master chip link.
As a kind of preferred embodiment, the buffer size in described step B is that the initial picture size of catching according to photographing module is set.
As a kind of preferred embodiment, if change the initial picture size that photographing module is caught, again open up the address of described buffering area and size to adapt to described initial picture size, and after open up and change address and the size of this buffering area before initial picture size next time and all fix.
As a kind of preferred embodiment, the maximum quantity of the buffering area in described step B depends on the upper limit of the initial picture quantity that photographing module is caught.
As a kind of preferred embodiment, the optimum picture selection algorithm in described step C be the described N by preserving in advance in contrast buffering area open definition, the illumination uniformity, contrast, saturation, brightness, details between initial picture enrich degree, whether overexposure or cross secretly, whether have color lump, whether colour cast, whether cross the cold and whether combination of wherein one or more indexs of the index such as excessively warm.
In addition, the present invention also provides a kind of camera arrangement that is applicable to zero-lag shutter, it is characterized in that, it comprises:
Image unit, opens initial picture for catch rapidly continuously N when taking pictures;
Picture-storage unit, it is opened up in advance N buffering area and opens initial picture with the up-to-date N that deposits and upgrade image unit and catch;
Optimum picture judging unit, opens and initial picture, selects the as a result of picture output of an optimum picture for the N depositing from picture-storage unit.
As a kind of preferred embodiment, described image unit is the independently combination of camera module or camera module and image processor.
As a kind of preferred embodiment, described camera arrangement also comprises a master chip, and described picture-storage unit is located in image processor or in master chip.
As a kind of preferred embodiment, described camera arrangement also comprises a master chip, and described optimum picture judging unit is for computing chip independently or be located in master chip.
The invention has the beneficial effects as follows:
(1) a kind of photographic method and device that is applicable to zero-lag shutter of the present invention, it catches rapidly continuously N and opens initial picture when taking pictures, and described N is opened to initial picture be constantly kept at N the buffering area of opening up in advance, the described N that finally utilizes optimum picture selection algorithm to preserve in advance from buffering area opens and initial picture, selects the as a result of picture output of an optimum picture, thereby improves the success rate of taking pictures;
(2) in described steps A, catching rapidly continuously N, to open initial picture be in seconds, between each picture that makes to catch, there is certain difference and picture number suitable, take up room little;
(3) described initial picture is full-scale picture, and the size of described result picture can be less than this full-scale picture, and it changes into required result picture by image zooming instrument, and user uses more convenient.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is a kind of general flow chart that is applicable to the photographic method of zero-lag shutter of the present invention;
Fig. 2 is a kind of schematic diagram that is applicable to the camera arrangement of zero-lag shutter of the present invention.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of photographic method that is applicable to zero-lag shutter of the present invention, comprises the following steps:
A. start photographing module, while taking pictures, catch rapidly continuously N and open initial picture;
B. open up in advance N buffering area, the described N that preservation photographing module is caught opens initial picture;
C. the described N that utilizes optimum picture selection algorithm to preserve in advance from buffering area opens and initial picture, selects the as a result of picture output of an optimum picture.
Wherein, in described steps A, catching rapidly continuously N, to open initial picture be in seconds, and the N of catching per second opens initial picture, and photographing module when taking pictures in zero propagation shutter mode; Described photographing module is the independently combination of camera module or camera module and image processor;
Buffering area in described step B is to open up in advance before the initial picture of catching at reception photographing module, the maximum quantity of buffering area depends on the upper limit of the initial picture quantity that photographing module is caught, and the upper limit of this quantity N is to be subject to limit bandwidth that the link bandwidth of inner each module of photographing module and photographing module and master chip link.
And it is full-scale picture that the N catching in described steps A opens initial picture; When the Output Size of the result picture in described step C need to be less than described initial picture size, when needing the smaller or greater size of specific output dimension of picture to be presented on interface, the initial picture that can come convergent-divergent photographing module to catch by the image zooming instrument of hardware or software, to obtain required result picture, and image zooming instrument does not affect the size of the described initial picture of preserving in buffering area; Buffer size in described step B is that the initial picture size of catching according to photographing module is set; If change the initial picture size that photographing module is caught, again open up described buffering area address and size to adapt to described initial picture size, and after open up and change address and the size of this buffering area before initial picture size next time and all fix, unless described buffering area changes after opening up during address during whole shooting and size are the shooting of fixing, initial picture size is opened up once again.
Optimum picture selection algorithm in described step C be the described N by preserving in advance in contrast buffering area open definition, the illumination uniformity, contrast, saturation, brightness, details between initial picture enrich degree, whether overexposure or cross secretly, whether have color lump, whether colour cast, whether cross the cold and whether combination of wherein one or more indexs of the index such as excessively warm.
Concrete application below in conjunction with smart mobile phone is described in detail implementation method of the present invention:
A. start photographing module, while taking pictures, catch rapidly continuously N and open initial picture:
Click the camera apk of smart mobile phone, suppose that the maximum photo resolution of this mobile phone camera output is 4128x3096, in its 1 second, maximum continuous shooting number is 4 pictures, and selecting takes pictures is of a size of 3264x2448.Press the button of taking pictures, apk transmits photographing command to bottom layer driving, drives and sends order notice photographing module continuous 4 4128x3096 pictures of fast Acquisition in 1 second.
B. open up in advance N buffering area, the described N that preservation photographing module is caught opens initial picture:
Before bottom layer driving sends order and the quick continuous shooting of parameter startup photographing module, whether judgement has opened up 4 buffering areas of preserving the yuy2 picture of 4128x3096 size at mobile phone A P end, if do not opened up, at mobile phone A P end, open up corresponding number buffering area, when receiving 4 full-scale pictures that photographing module transmits, bottom layer driving they are saved in 4 buffering areas of opening up in advance.
C. the described N that utilizes optimum picture selection algorithm to preserve in advance from buffering area opens and initial picture, selects the as a result of picture output of an optimum picture:
After 4 full-scale pictures are preserved in buffering area, at the optimum picture selection algorithm of HAL layer utilization, from this 4 pictures, choose an optimum as a result of output for picture; Wherein, optimum picture selection algorithm is exemplified below:
A. obtain the brightness value of each pixel of initial picture in buffering area;
B. calculate the mean value of the brightness value of every initial picture.
C. select a mean value initial picture placed in the middle to export as optimum picture.
After selected that optimum full-scale picture, the picture size needing due to user is 3264x2448, now at HAL layer, utilizes the image zooming instrument of hardware by its boil down to 3264x2448, and exports to apk and preserve.
As shown in Figure 2, a kind of camera arrangement that is applicable to zero-lag shutter of the present invention, it comprises:
Image unit, opens initial picture for catch rapidly continuously N when taking pictures;
Picture-storage unit, it is opened up in advance N buffering area and opens initial picture with the up-to-date N that deposits and upgrade image unit and catch;
Optimum picture judging unit, opens and initial picture, selects the as a result of picture output of an optimum picture for the N depositing from picture-storage unit.
Wherein, described image unit is the independently combination of camera module or camera module and image processor; Described camera arrangement also comprises a master chip, and described picture-storage unit is located in image processor or in master chip; Described optimum picture judging unit is for computing chip independently or be located in master chip.
Concrete application below in conjunction with aforementioned intelligent mobile phone is described in detail camera arrangement of the present invention:
In the present embodiment, the front camera and rear camera module that image unit is smart mobile phone, or the combination of front camera and rear camera module and image processor, for obtaining rapidly and need the scene of size picture continuously, it is connected with smart mobile phone AP end and controlled by AP end; Picture-storage unit is the internal memory of smart mobile phone AP end, for depositing and upgrading the some up-to-date picture that image unit is caught; Optimum picture judging unit is the cpu program of smart mobile phone AP end, for selecting optimum picture some pictures of depositing from picture-storage unit.
Above-mentioned explanation illustrates and has described the preferred embodiments of the present invention, as front, be to be understood that the present invention is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can, in invention contemplated scope herein, by technology or the knowledge of above-mentioned instruction or association area, change.And the change that those skilled in the art carry out and variation do not depart from the spirit and scope of the present invention, all should be in the protection range of claims of the present invention.
Claims (15)
1. a photographic method that is applicable to zero-lag shutter, is characterized in that, comprises the following steps:
A. start photographing module, while taking pictures, catch rapidly continuously N and open initial picture;
B. open up in advance N buffering area, the described N that preservation photographing module is caught opens initial picture;
C. the described N that utilizes optimum picture selection algorithm to preserve in advance from buffering area opens and initial picture, selects the as a result of picture output of an optimum picture.
2. a kind of photographic method that is applicable to zero-lag shutter according to claim 1, is characterized in that: described photographing module is the independently combination of camera module or camera module and image processor.
3. a kind of photographic method that is applicable to zero-lag shutter according to claim 1, is characterized in that: in described steps A, catching rapidly continuously N, to open initial picture be in seconds, and the N of catching per second opens initial picture.
4. a kind of photographic method that is applicable to zero-lag shutter according to claim 1, is characterized in that: in described steps A photographing module when taking pictures in zero propagation shutter mode.
5. a kind of photographic method that is applicable to zero-lag shutter according to claim 1, is characterized in that: described in the N that catches to open initial picture be full-scale picture.
6. a kind of photographic method that is applicable to zero-lag shutter according to claim 5, the Output Size of the result picture in described step C it is characterized in that: when need to be less than described initial picture size, the initial picture that can come convergent-divergent photographing module to catch by the image zooming instrument of hardware or software, to obtain required result picture.
7. a kind of photographic method that is applicable to zero-lag shutter according to claim 1, is characterized in that: the upper limit of described initial picture number N is to be subject to limit bandwidth that the link bandwidth of inner each module of photographing module and photographing module and master chip link.
8. a kind of photographic method that is applicable to zero-lag shutter according to claim 1, is characterized in that: the buffer size in described step B is that the initial picture size of catching according to photographing module is set.
9. a kind of photographic method that is applicable to zero-lag shutter according to claim 8, it is characterized in that: if change the initial picture size that photographing module is caught, again open up the address of described buffering area and size to adapt to described initial picture size, and after open up and change address and the size of this buffering area before initial picture size next time and all fix.
10. a kind of photographic method that is applicable to zero-lag shutter according to claim 1, is characterized in that: the maximum quantity of the buffering area in described step B depends on the upper limit of the initial picture quantity that photographing module is caught.
11. a kind of photographic methods that are applicable to zero-lag shutter according to claim 1, is characterized in that: the optimum picture selection algorithm in described step C be the described N by preserving in advance in contrast buffering area open definition, the illumination uniformity, contrast, saturation, brightness, details between initial picture enrich degree, whether overexposure or cross secretly, whether have color lump, whether colour cast, whether cross the cold and whether combination of wherein one or more indexs of the index such as excessively warm.
12. 1 kinds of camera arrangements that are applicable to zero-lag shutter, is characterized in that, it comprises:
Image unit, opens initial picture for catch rapidly continuously N when taking pictures;
Picture-storage unit, it is opened up in advance N buffering area and opens initial picture with the up-to-date N that deposits and upgrade image unit and catch;
Optimum picture judging unit, opens and initial picture, selects the as a result of picture output of an optimum picture for the N depositing from picture-storage unit.
13. a kind of camera arrangements that are applicable to zero-lag shutter according to claim 12, is characterized in that: described image unit is the independently combination of camera module or camera module and image processor.
14. a kind of camera arrangements that are applicable to zero-lag shutter according to claim 12, is characterized in that: described camera arrangement also comprises a master chip, and described picture-storage unit is located in image processor or in master chip.
15. a kind of camera arrangements that are applicable to zero-lag shutter according to claim 12, is characterized in that: described camera arrangement also comprises a master chip, and described optimum picture judging unit is for computing chip independently or be located in master chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310641256.6A CN103607533A (en) | 2013-12-03 | 2013-12-03 | Photographing method and device suitable for zero-lag shutter |
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| CN201310641256.6A CN103607533A (en) | 2013-12-03 | 2013-12-03 | Photographing method and device suitable for zero-lag shutter |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104932868A (en) * | 2014-03-17 | 2015-09-23 | 联想(北京)有限公司 | Data processing method and electronic device |
| CN105025216A (en) * | 2014-04-28 | 2015-11-04 | 维沃移动通信有限公司 | Moving object photographing method and system thereof |
| WO2016041188A1 (en) * | 2014-09-19 | 2016-03-24 | 华为技术有限公司 | Method and device for determining photographing delay time and photographing apparatus |
| CN105959557A (en) * | 2016-06-07 | 2016-09-21 | 深圳市万普拉斯科技有限公司 | Photographing method and device |
| CN106453834A (en) * | 2016-09-07 | 2017-02-22 | 努比亚技术有限公司 | Mobile terminal and camera shooting method |
| CN108540726A (en) * | 2018-05-15 | 2018-09-14 | Oppo广东移动通信有限公司 | Processing method, device, storage medium and the terminal of continuous shooting image |
| CN110005627A (en) * | 2018-06-13 | 2019-07-12 | 周超强 | Axial-flow blower based on electric machine speed regulation |
| CN113286099A (en) * | 2021-04-30 | 2021-08-20 | 杭州星犀科技有限公司 | Display screen picture control system and method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104932868A (en) * | 2014-03-17 | 2015-09-23 | 联想(北京)有限公司 | Data processing method and electronic device |
| CN105025216A (en) * | 2014-04-28 | 2015-11-04 | 维沃移动通信有限公司 | Moving object photographing method and system thereof |
| WO2016041188A1 (en) * | 2014-09-19 | 2016-03-24 | 华为技术有限公司 | Method and device for determining photographing delay time and photographing apparatus |
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| CN105959557A (en) * | 2016-06-07 | 2016-09-21 | 深圳市万普拉斯科技有限公司 | Photographing method and device |
| CN106453834A (en) * | 2016-09-07 | 2017-02-22 | 努比亚技术有限公司 | Mobile terminal and camera shooting method |
| CN108540726A (en) * | 2018-05-15 | 2018-09-14 | Oppo广东移动通信有限公司 | Processing method, device, storage medium and the terminal of continuous shooting image |
| CN108540726B (en) * | 2018-05-15 | 2020-05-05 | Oppo广东移动通信有限公司 | Method and device for processing continuous shooting image, storage medium and terminal |
| CN110005627A (en) * | 2018-06-13 | 2019-07-12 | 周超强 | Axial-flow blower based on electric machine speed regulation |
| CN113286099A (en) * | 2021-04-30 | 2021-08-20 | 杭州星犀科技有限公司 | Display screen picture control system and method |
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