CN105657288A - Camera shooting exposure processing method and terminal - Google Patents
Camera shooting exposure processing method and terminal Download PDFInfo
- Publication number
- CN105657288A CN105657288A CN201510713180.2A CN201510713180A CN105657288A CN 105657288 A CN105657288 A CN 105657288A CN 201510713180 A CN201510713180 A CN 201510713180A CN 105657288 A CN105657288 A CN 105657288A
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- frequency
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- time
- shooting equipment
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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
- H04N23/70—Circuitry for compensating brightness variation in the scene
Abstract
The invention relates to a camera shooting exposure processing method and a terminal. The method comprises following steps: starting a camera on the terminal; obtaining the alternating current frequency of a location area in which the terminal is located currently; after setting the exposure time of the camera as the integral multiples of the half-wave duration corresponding to the alternating current frequency, driving the camera to operate normally. Through the embodiment of the invention, the banding generated in camera shooting can be effectively filtered; and the camera shooting effect is optimized.
Description
Technical field
The present invention relates to image processing techniques, particularly relate to a kind of shooting exposure processing method and terminal.
Background technology
At present, indoor electric light source (fluorescent lamp etc.) is owing to being employing AC-powered, therefore the fluctuation of light intensity is had, when mobile phone etc. with the terminal of camera function when indoor use, the normal exposure affecting camera in mobile phone due to light light-intensity variation, and then produce striated (banding) image, affect shooting effect. In prior art, although the time shutter has been arranged, but the difference (as being 50HZ in China, North America is 60HZ) due to ac frequency all over the world, current setting cannot the indoor light source in the different area of flexible adaptation, still there will be the problem of banding.
Summary of the invention
The embodiment of the present invention provides a kind of camera exposure treatment process and terminal, and the water ripples produced when making a video recording with filtering optimize shooting effect.
For achieving the above object, embodiments provide a kind of shooting exposure processing method, comprising: start the shooting equipment in terminal; Obtain the ac frequency in region, current terminal present position; When the time shutter of shooting equipment is set to half-wave corresponding to described ac frequency after the integral multiple of length, shooting equipment is driven normally to run.
The embodiment of the present invention additionally provides a kind of terminal, comprising: start module, for the shooting equipment started in terminal; Acquisition module, for obtaining the ac frequency in region, current terminal present position; Module is set, during for the time shutter of shooting equipment is set to half-wave corresponding to described ac frequency after the integral multiple of length, drives shooting equipment normally to run.
The shooting exposure processing method that the embodiment of the present invention provides and terminal, by the time shutter of shooting equipment is adjusted to the integral multiple of the alternating-current half-wavelength that region, shooting equipment present position uses, carrys out during filtering is made a video recording the ripple produced, optimize photographic effect.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of a shooting exposure processing method embodiment provided by the invention;
Fig. 2 is the method flow diagram of shooting another embodiment of exposure processing method provided by the invention;
Fig. 3 is the structural representation of a terminal embodiment provided by the invention;
Fig. 4 is the structural representation of another embodiment of terminal provided by the invention.
Description of reference numerals:
310-starts module; 320-acquisition module; 330-arranges module; 321-acquiring unit; 322-searches unit; 323-determining unit; 340-memory module.
Embodiment
Currently, major part terminal all can produce striated (banding) image when making a video recording, its reason is the camera (camera in these terminals, may also be referred to as CCD camera assembly, possess photograph and camera function) all adopt the Exposure mode of complementary metal oxide semiconductor (ComplementaryMetalOxideSemiconductor, CMOS).And this kind of Exposure mode adopts the mode of a line a line to carry out exposing, namely it is the same with the exposure starting point (initial time) of each pixel (pixel) in a line with the time shutter, although and between different rows the time shutter be all the same, but exposure starting point be different. Simultaneously, existing electric light source (fluorescent lamp etc.) generally all uses AC-powered, the electric current of alternating-current is sine wave fluctuation, therefore, the light intensity the causing electric light source also fluctuation in sine wave, if the time shutter arrange unreasonable and the time opening that is that expose be again different, then the light that in the unit time, CMOS picture unit receives is exactly different, the light intensity that CMOS picture unit between row from row receives is different, thus result in the generation of banding phenomenon.
Find through research, owing to the fluctuation of the light intensity in electric light source is also in sinusoidal wave form, characteristic according to sine wave, as long as the time shutter is the integral multiple of the semi-period of sine wave period, so no matter the starting point of time shutter is where, the integrated value (the cumulative value of light intensity) of light intensity corresponding within the time shutter is all the same, namely the light quantity that CMOS picture unit receives within a time shutter is identical, banding phenomenon would not occur like this, therefore, the half period that time shutter is set to ac period just can meet the requirement of filtering banding. at present, in China, ac frequency is 50Hz, if the camera exposure time is not the integral multiple in half-wavelength cycle and the integral multiple of 10ms, image just has light and shade striped, and the country (such as area, North America) at ac frequency 60Hz, if the time shutter is with regard to the integral multiple of 8.33ms (being approximately the half-wavelength cycle that 60Hz is corresponding).
Current camera, to the process of banding, is arrange setting (setting) menu in camera software to allow user select banding setting to be " 50hz/60hz ". But seldom there is user to know the implication of this option, immediately know the ac frequency that also may not know that oneself current residing area adopts. And improve along with the processing power of the terminals such as present mobile phone, can judge currently whether produce banding and switch exposure parameter with the algorithm of pure image procossing, but also can only in certain scene, suppress in certain limit to alleviate banding problem, this alleviates process simultaneously needs the longer convergence time, and the Consumer's Experience being is poor.
Based on above camera to the limitation eliminating banding, this scheme is after the ac frequency obtaining region, current terminal present position, the time shutter of camera is carried out adjustment setting, thus, automatically banding is regulated to be set to 50hz or 60hz at camera bottom, well process banding problem, and do not needed user to go to pay close attention to the professional setting of any banding this kind, be user-friendly to.
Below in conjunction with accompanying drawing, the shooting exposure processing method of the embodiment of the present invention and terminal are described in detail.
Embodiment one
Fig. 1 is the method flow diagram of a shooting exposure processing method embodiment provided by the invention, and the executive agent of the method can for having the terminal such as shooting and the mobile phone of identification of position or position detecting function, Ipad. As shown in Figure 1, this shooting exposure processing method comprises the steps:
S110, starts the shooting equipment in terminal.
Shooting equipment in described terminal can the set of the equipment with camera function for being integrated in terminal, such as the built-in camera assembly on mobile phone.Owing to this scheme is that the banding occurred when making a video recording for existing CMOS camera carries out filtering, the Exposure mode of what the shooting equipment therefore referred in this scheme all adopted is CMOS camera or employing also exposes by a line a line for pixel.
In actually operating, by clicking the icon of camera applications, start shooting equipment.
S120, obtains the ac frequency in region, current terminal present position.
Usually, after opening camera application, terminal can carry out the Initialize installation of camera application, comprising the setting to the time shutter, namely, before the view data applied at terminal interface camera shows, current banding is arranged to configure to call setParameter.
Namely this step carried out before the current banding of configuration is arranged.
Existing terminal is all integrated with the position location functionality such as GPS or time zone, system place usually, these additional location functions can assist terminal to obtain the information in region, current terminal present position, and then the national information residing for terminal can be known, and the ac frequency that this country uses.
S130, when the time shutter of shooting equipment is set to half-wave corresponding to ac frequency after the integral multiple of length, drives shooting equipment normally to run.
After the ac frequency obtaining region, current terminal present position, according to the relation of the time shutter needed for aforementioned elimination banding and the ac frequency in region, terminal present position, when the time shutter of shooting equipment is set to half-wave corresponding to this ac frequency after the integral multiple of length, shooting equipment is driven normally to run, until entering normal working order.
In follow-up shooting process, when comprising photography or recorded video, arrange owing to the time shutter has carried out coupling by terminal seat district, then there will not be banding problem.
The shooting exposure processing method that the present embodiment provides, adjusted the Exposure mode of time shutter of shooting equipment, avoid in shooting process and fringe phenomena occur by opsition dependent region, it is to increase the shooting experience of user and photographic effect.
Embodiment two
Fig. 2 is the method flow diagram of shooting another embodiment of exposure processing method provided by the invention. On the basis of embodiment as shown in Figure 1, the present embodiment is to showing S120, obtain the concrete mode of the ac frequency in region, current terminal present position, and add the preservation step that exposure is arranged, so that the data that shooting equipment utilization prestores realize opening fast and run. As shown in Figure 2, this shooting exposure processing method comprises the steps:
S210, starts the shooting equipment in terminal. S210 is identical with aforementioned S110.
After S210, can continuing to perform the step content of S120, show the specific implementation of step S120 as follows, corresponding step comprises S220��S230.
S220, the time-zone information and/or the terminal that obtain current terminal system detect the GPS position information obtained.
Wherein, the time-zone information of terminal system can arrange middle inquiry acquisition from the relevant of " time and date " terminal system, and GPS position information obtains by GPS position determining equipment preset in terminal. In embody rule scene, if terminal is mobile phone, then also by cell localization, it is determined that the band of position residing for mobile phone.
S230, searches the ac frequency in region, current terminal present position according to time-zone information and/or GPS position information in region-ac frequency mapping table.
A region-ac frequency mapping table can be prestored in the terminal, this mapping table has prestored the position range information of each country and the ac frequency of this country correspondence, and the ac frequency that each time zone is corresponding.
Terminal can analyze the position of the country obtaining time zone residing for current terminal reality and/or place according to the GPS position information that the time-zone information of current terminal system obtained and/or terminal detection obtain. Then the ac frequency in region, current terminal present position can be searched in region-ac frequency mapping table according to this time zone and/or country position. When the ac frequency found is unique, can continue to perform S250.
But, in practical application scene, a time zone may comprise multiple country, and the ac frequency that each country uses also is not quite similar. Therefore, when the ac frequency adopting time-zone information and GPS position information to find in region-ac frequency mapping table is not unique simultaneously, can first perform S240, finally to determine the ac frequency of terminal present position.
If the ac frequency that S240 searches in region-ac frequency mapping table according to time-zone information, GPS position information is not identical, then ac frequency corresponding for GPS position information is defined as the ac frequency in region, above-mentioned current terminal present position.
When the present embodiment prestores the ac frequency of time zone and correspondence in region-ac frequency mapping table, ac frequency can be stored and cover the widest frequency, to meet the accuracy of exposure configuration more, but the situation that the ac frequency not getting rid of this frequency and the use of terminal actual position is not identical. And located the regional extent determined by GPS little compared with zone boundary, it is possible to be accurate to certain country, and then determine the ac frequency that this country uses. Therefore, use simultaneously time zone and GPS information search ac frequency difference occurs time, ac frequency corresponding for GPS position information is determined the ac frequency in region, current terminal present position.
After S240, continue to perform S250.
S250, when the time shutter of shooting equipment is set to half-wave corresponding to ac frequency after the integral multiple of length, drives shooting equipment normally to run. S250 is identical with aforementioned S130.
Further, after S250, start the time of camera to shorten next time, the setting of integral multiple of length when being set to half-wave corresponding to ac frequency of the above-mentioned time shutter by shooting equipment can be preserved in the terminal.
Such as, when present position is China, then when being defined as half-wave corresponding to 50hz the time shutter of shooting equipment, during arbitrary in the integral multiple of length and 10ms, length preserves in the terminal. Thus, when terminal starts shooting equipment again, can first searching in terminal whether preserved the time shutter, if preserving the time shutter in terminal, then after the time shutter of the equipment that is set to the time shutter of preservation currently make a video recording, driving shooting equipment normally to run. So, terminal without the need to all carrying out the acquisition of the ac frequency in region, terminal present position when starting shooting equipment every time, so that it may accurately and rationally arranges the time shutter of shooting equipment, convenient and swift.
Embodiment two
The structural representation being illustrated in figure 3 a terminal embodiment provided by the invention, can be used for performing the method steps of embodiment as shown in Figure 1. As shown in Figure 3, this terminal comprises:
Start module 310, for the shooting equipment started in terminal; Acquisition module 320, for obtaining the ac frequency in region, current terminal present position; Module 330 is set, during for the time shutter of shooting equipment is set to half-wave corresponding to ac frequency after the integral multiple of length, drives shooting equipment normally to run.
On this basis, as shown in Figure 4, in above-mentioned terminal, acquisition module 320 can comprise:
Acquiring unit 321, detects, for the time-zone information and/or terminal obtaining current terminal system, the GPS position information obtained; Search unit 322, for searching the ac frequency in region, current terminal present position in region-ac frequency mapping table according to time-zone information and/or GPS position information.
Further, above-mentioned acquisition module 320 also can comprise: determining unit 323, if not identical for searching the ac frequency that unit 322 searches in region-ac frequency mapping table according to time-zone information, GPS position information, then ac frequency corresponding for GPS position information is determined the ac frequency in region, current terminal present position.
On this basis, above-mentioned terminal also can comprise memory module 340, for preserve in the terminal the above-mentioned time shutter by shooting equipment be set to half-wave corresponding to described ac frequency time length the setting of integral multiple.
Further, the above-mentioned module 330 that arranges also can be used for, if preserving the time shutter in terminal, then after the time shutter of the equipment that is set to the time shutter of preservation currently make a video recording, drives shooting equipment normally to run.
Shown in above-mentioned Fig. 2, embodiment of the method is also complete by the terminal shown in Fig. 4, its step principle is not repeated at this.
The terminal of the embodiment of the present invention, adjusted the Exposure mode of time shutter of shooting equipment, avoid in shooting process and fringe phenomena occur by opsition dependent region, it is to increase the shooting experience of user and photographic effect. Further, terminal also can to when time the setting of time shutter store, and upper the time shutter of shooting equipment is once set time directly call, convenient and swift.
The above; it is only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention. Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. a shooting exposure processing method, it is characterised in that, described method comprises:
Start the shooting equipment in terminal;
Obtain the ac frequency in region, current terminal present position;
When the time shutter of shooting equipment is set to half-wave corresponding to described ac frequency after the integral multiple of length, shooting equipment is driven normally to run.
2. method according to claim 1, it is characterised in that, the ac frequency in region, described acquisition current terminal present position; Comprise:
The time-zone information and/or the terminal that obtain current terminal system detect the GPS position information obtained;
In region-ac frequency mapping table, the ac frequency in region, current terminal present position is searched according to described time-zone information and/or described GPS position information.
3. method according to claim 2, it is characterised in that, described method also comprises:
If not identical according to the described ac frequency that described time-zone information, described GPS position information are searched in region-ac frequency mapping table, then ac frequency corresponding for described GPS position information is determined the ac frequency in region, current terminal present position.
4. method according to any one of claim 1-3, it is characterised in that, described method also comprises:
Preserve the setting of integral multiple of length when being set to half-wave corresponding to described ac frequency of the described time shutter by shooting equipment in the terminal.
5. method according to claim 4, it is characterised in that, also comprise before the ac frequency in region, described acquisition current terminal present position:
If preserving the time shutter in terminal, then after the time shutter of the equipment that is set to the time shutter of preservation currently make a video recording, shooting equipment is driven normally to run.
6. a terminal, it is characterised in that, described terminal comprises:
Start module, for the shooting equipment started in terminal;
Acquisition module, for obtaining the ac frequency in region, current terminal present position;
Module is set, during for the time shutter of shooting equipment is set to half-wave corresponding to described ac frequency after the integral multiple of length, drives shooting equipment normally to run.
7. terminal according to claim 6, it is characterised in that, described acquisition module comprises:
Acquiring unit, detects, for the time-zone information and/or terminal obtaining current terminal system, the GPS position information obtained;
Search unit, for searching the ac frequency in region, current terminal present position in region-ac frequency mapping table according to described time-zone information and/or described GPS position information.
8. terminal according to claim 7, it is characterised in that, described acquisition module also comprises:
Determining unit, if for described in search the described ac frequency that unit searches in region-ac frequency mapping table according to described time-zone information, described GPS position information not identical, then ac frequency corresponding for described GPS position information is determined the ac frequency in region, current terminal present position.
9. terminal according to any one of claim 6-8, it is characterised in that, also comprise:
Memory module, for preserve in the terminal the described time shutter by shooting equipment be set to half-wave corresponding to described ac frequency time length the setting of integral multiple.
10. terminal according to claim 9, it is characterised in that, described arrange module also for, if preserving the time shutter in terminal, then after the time shutter of the equipment that is set to the time shutter of preservation currently make a video recording, drive shooting equipment normally run.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510713180.2A CN105657288A (en) | 2015-10-28 | 2015-10-28 | Camera shooting exposure processing method and terminal |
| PCT/CN2016/086038 WO2017071240A1 (en) | 2015-10-28 | 2016-06-16 | Camera shooting exposure processing method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510713180.2A CN105657288A (en) | 2015-10-28 | 2015-10-28 | Camera shooting exposure processing method and terminal |
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| Publication Number | Publication Date |
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| CN105657288A true CN105657288A (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510713180.2A Pending CN105657288A (en) | 2015-10-28 | 2015-10-28 | Camera shooting exposure processing method and terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105657288A (en) |
| WO (1) | WO2017071240A1 (en) |
Cited By (7)
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| CN106375635A (en) * | 2016-09-20 | 2017-02-01 | 惠州Tcl移动通信有限公司 | Camera strip noise resistant setting method and system based on GPS |
| WO2017071240A1 (en) * | 2015-10-28 | 2017-05-04 | 乐视控股（北京）有限公司 | Camera shooting exposure processing method and terminal |
| CN108462837A (en) * | 2018-03-13 | 2018-08-28 | 中兴通讯股份有限公司 | Image pickup method and device |
| CN110035234A (en) * | 2019-04-16 | 2019-07-19 | 深圳市道通智能航空技术有限公司 | A kind of filming control method of aircraft, aircraft and flight system |
| WO2020062218A1 (en) * | 2018-09-30 | 2020-04-02 | 深圳市大疆创新科技有限公司 | Control method for image capture device and image capture device |
| CN112383718A (en) * | 2020-11-16 | 2021-02-19 | 维沃移动通信（杭州）有限公司 | Image exposure method and device and electronic equipment |
| CN113840090A (en) * | 2021-09-27 | 2021-12-24 | 维沃移动通信有限公司 | Shutter adjusting method, device, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017071240A1 (en) * | 2015-10-28 | 2017-05-04 | 乐视控股（北京）有限公司 | Camera shooting exposure processing method and terminal |
| CN106375635A (en) * | 2016-09-20 | 2017-02-01 | 惠州Tcl移动通信有限公司 | Camera strip noise resistant setting method and system based on GPS |
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| CN110035234A (en) * | 2019-04-16 | 2019-07-19 | 深圳市道通智能航空技术有限公司 | A kind of filming control method of aircraft, aircraft and flight system |
| WO2020211785A1 (en) * | 2019-04-16 | 2020-10-22 | 深圳市道通智能航空技术有限公司 | Photographing control method for aircraft, and aircraft and flight system |
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| CN113840090A (en) * | 2021-09-27 | 2021-12-24 | 维沃移动通信有限公司 | Shutter adjusting method, device, equipment and storage medium |
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| Publication number | Publication date |
|---|---|
| WO2017071240A1 (en) | 2017-05-04 |
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Application publication date: 20160608 |