CN101867717B - Adjusting method for photographic parameters of digital image and digital photographing device - Google Patents
Adjusting method for photographic parameters of digital image and digital photographing device Download PDFInfo
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- CN101867717B CN101867717B CN2009101339642A CN200910133964A CN101867717B CN 101867717 B CN101867717 B CN 101867717B CN 2009101339642 A CN2009101339642 A CN 2009101339642A CN 200910133964 A CN200910133964 A CN 200910133964A CN 101867717 B CN101867717 B CN 101867717B
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- photoflash lamp
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Abstract
The invention discloses an adjusting method for photographic parameters of a digital image and a digital photographing device for automatically adjusting the photographic parameters, which are applied to the digital photographing device to adjust corresponding photographic parameters when photographing digital images. The adjusting method comprises the following steps of: detecting whether the digital photographing device is positioned in a stable state or not and outputting a detection signal by using a gyroscope; executing a first adjusting program when the digital photographing device is positioned in an instable state; executing an object image detection program when the digital photographing device is positioned in the stable state for judging whether an object to be photographed is positioned in a motion state or not; executing a second adjusting program when the object is positioned in the motion state, and otherwise, executing a third adjusting program; setting the state according to the brightness of a photographing environment and a flash lamp of a digital camera and adjusting the photographic parameters of the digital photographing device according to a detection result; and photographing the digital images.
Description
Technical field
The present invention relates to a kind of digitized video image pickup method and digital camera device, particularly a kind of method of adjustment of acquisition parameters of digitized video and adjust the digital camera device of acquisition parameters automatically.
Background technology
Develop today fast at digital camera, many people can utilize photography to write down memorable a moment.But no matter on egative film camera or digital camera, tend to, and produce fuzzy image when causing taking because the user controls instability to camera.So long as the free-hand camera of taking, more or less all exist the problem of vibrations.Difference is that everyone degree of stability of handing is all different, causes pressing shutter moment can involuntaryly move.So produce fuzzy image for fear of making because of staff vibrations to take, digital camera manufacturer can avoid the staff vibrations or come the digitized video of blur correction mode with software mode through hardware mode.
So each tame digital camera manufacturer in oneself product, all adds different anti-hand shake mechanism.Anti-hand shake mechanism is in shooting process, the image fog phenomenon that detects and suppress to cause because of hand shake.Anti-hand shake technology mainly realizes through the mode of electronic type or optical profile type.
The anti-hand shake of electronic type is for improving photosensitivity (International Standards Organization is hereinafter to be referred as ISO) ability.Basically the purpose that improves ISO is to accelerate shutter speed, also can bring higher noise simultaneously but improve ISO.And the anti-hand shake of optical profile type is provided with a motion detection elements in digital camera.When digital camera detects the shake of generation hand; Digital camera can be according to the direction of hand shake with camera lens or photo-sensitive cell (for example is charge coupled cell Charge-coupled Device; CCD) move in the opposite direction, so as to compensating image fog because of displacement caused.A kind of in addition anti-shake method is for amplifying the mode of aperture, in order to be added to light quantity so as to shortening aperture time.But aperture size depends on the combining structure of lens group.Generally speaking, the camera lens of large aperture has higher cost and volume.So be difficult for being set in the digital camera of consumption-orientation.
Summary of the invention
In view of above problem; Main purpose of the present invention is to provide a kind of method of adjustment of acquisition parameters of digitized video; Be applied to digital camera device when taking digitized video, according to the stable state of digital camera device, the motion state of inner setting (photoflash lamp etc.) and subject of ambient brightness, camera when taking in order to adjust corresponding acquisition parameters.
For realizing above-mentioned purpose, the method for adjustment of the acquisition parameters of the disclosed digitized video of the present invention may further comprise the steps: utilize gyroscope to detect digital camera device and whether be in stable stable state, and output detection signal; When digital camera device remains static, carry out the object image trace routine and judge whether subject is in the state that is moving; Then detect the brightness and the photoflash lamp set condition of digital camera own of shooting environmental again, and adjust the acquisition parameters of digital camera device according to its each testing result; Take digitized video.
Another viewpoint of the present invention; The present invention provides a kind of digital camera device of automatic adjustment acquisition parameters; Be applied to digital camera device when taking digitized video,, adjust corresponding acquisition parameters according to the stable state of digital camera device and the motion state of subject.
For realizing above-mentioned purpose, the digital camera device of the disclosed automatic adjustment acquisition parameters of the present invention includes: lens group, photo-sensitive cell, gyroscope, storage element and processing unit.Lens group is in order to the focal length of adjustment to object; Photo-sensitive cell is connected in lens group, and photo-sensitive cell converts the signal of telecommunication of digitized video to according to received image frame; Gyroscope detects the motion state and the output status signal of digital camera device; Storage element is electrically connected at photo-sensitive cell, and storage element is in order to the store digital image; Processing unit is electrically connected at photo-sensitive cell, gyroscope and storage element; Whether processing unit accepting state signal is in stable status in order to judge digital camera device, when digital camera device remains static; Carry out the object image trace routine; In order to judge whether subject is kept in motion, detect the brightness and the photoflash lamp set condition of digital camera own of shooting environmental again, and come acquisition parameters in order to the adjustment digital camera device according to its each testing result.
The method of adjustment of the acquisition parameters of digitized video provided by the present invention, digital camera device judges according to capture preview phase and the optical gyroscope testing result of taking the photograph in advance in the stage whether digital camera device is in stable status.False if not, the hand shake that then maybe the person of being to use when hand-held, takes place, then digital camera device can be according to current screening-mode adjustment acquisition parameters.Influence so as to hand is shaken digitized video drops to minimum.
About characteristic of the present invention and embodiment, conjunction with figs. is done the most preferred embodiment detailed description as follows now.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a schematic flow sheet of the present invention;
Fig. 3 is in the workflow diagram of the first adjustment program of vibrating state for digital camera device;
Fig. 4 is the sketch map of the second adjustment program circuit and the 3rd adjustment program.
Wherein, Reference numeral
100 digital camera devices
110 lens group
120 photo-sensitive cells
130 gyroscopes
140 processing units
150 storage elements
Embodiment
Please refer to shown in Figure 1ly, it is a structural representation of the present invention.Digital camera device 100 of the present invention includes: lens group 110, photo-sensitive cell 120, gyroscope 130, processing unit 140 and storage element 150.Lens group 110 is in order to the focal length of adjustment to object.Photo-sensitive cell 120 is connected in lens group 110, and photo-sensitive cell 120 converts the signal of telecommunication of digitized video to according to received image frame.Gyroscope 130 detects the stable state (for having or not the hand shake takes place in the present invention, make digital camera device produce non-stable vibrating state) and the output status signal of digital camera device 100.Processing unit 140 is electrically connected at photo-sensitive cell 120, gyroscope 130 and storage element 150.The detection signal that processing unit 140 is sent according to gyroscope 130 is in order to carry out corresponding shooting parameter adjustment method.Digital camera device 100 maybe be because the vibrating state that the user hands causes rocking of digital camera device 100.Utilize 130 pairs of digital camera devices 100 of gyroscope to have or not the detection of rocking in the present invention.When gyroscope 130 detected digital camera device 100 and shakes, gyroscope 130 can be given processing unit 140 by output one detection signal.After whether the decision digital camera device rocks, can carry out following handled according to the motion state of subject in addition.
Please refer to shown in Figure 2ly, it is a schematic flow sheet of the present invention.Method of adjustment of the present invention may further comprise the steps:
Step S210: utilize gyroscope to judge whether digital camera device is in stable state, and output detection signal.
Step S220: when digital camera device was in unsteady state, the first adjustment program of then carrying out was in order to the adjustment acquisition parameters, and wherein the detailed step of the first adjustment program holds follow-up description again.
Step S230: when digital camera device is in stable state, carries out the object image trace routine, and judge whether subject is kept in motion.
Step S240: when digital camera device is in stable state and subject and is motion state, select the second adjustment program, in order to the acquisition parameters of decision digital camera device.
Step S250: when digital camera device is in stable state and subject and is inactive state, select the 3rd adjustment program, in order to the acquisition parameters of decision digital camera device.
Step S260: take digitized video.
If will digital camera device 100 be remained in stable state, can utilize foot rest, lean on to be placed on by the wall or to be placed in the first-class mode of still life and realize the purpose of not rocking.Among the step S250 according to the motion state of subject, the inner setting (photoflash lamp, aperture, shutter etc.) of ambient brightness, camera when taking in order to adjust corresponding acquisition parameters.
Please refer to shown in Figure 3, its for digital camera device be in unsteady state first the adjustment program operation workflow figure.In the first adjustment program of step S220, more may further comprise the steps:
Step S320: judge whether ambient brightness meets the brightness threshold value.
Step S321: when ambient brightness is lower than the brightness threshold value, then detects photoflash lamp and whether be unlocked.
Step S331: when photoflash lamp was unlocked, then the aperture time with digital camera device was set at the safety shutter time.
Step S332: when photoflash lamp was not unlocked, then the sensitization value with digital camera device was set at maximum and switches to large aperture.
Step S322: when ambient brightness is higher than the brightness threshold value, then detects photoflash lamp and whether be unlocked.
Step S341: when photoflash lamp is unlocked, then directly take digitized video.
Step S342: when photoflash lamp is not unlocked, judge whether the current shutter time of digital camera device meets the safety shutter time.
Step S351: be slower than safety shutter during the time when the current shutter time of digital camera device, then adjust the sensitization value of digital camera device and switch to large aperture.
Step S352: during the time, then directly take digitized video faster than safety shutter when the current shutter time of digital camera device.
The ambient brightness of taking need to prove especially, because can have influence on the various acquisition parameters of digital camera device 100.Therefore carry out the adjustment of different acquisition parameters in the present invention according to the difference of ambient brightness.For instance, if the photosensitivity of digital camera device be 100, when safety shutter is 1/100 second, current shutter is 1/60 second.Processing unit 140 can be adjusted into 200 with photosensitivity, so as to current aperture time was increased to 1/120 second, faster than 1/100 second of safety shutter.Except this explanation, can certainly carry out the adjustment of acquisition parameters to digital camera device according to the adjustment order of different acquisition parameters.
Please refer to shown in Figure 4ly, it is the sketch map that the second adjustment program circuit and the 3rd is adjusted program.May further comprise the steps in the second adjustment program circuit:
Step S420: shorten the aperture time of digital camera device and heighten the sensitization value.
In addition, in the 3rd adjustment program circuit, may further comprise the steps:
Step S431: the sensitization value that reduces digital camera device.
Step S432: judge whether ambient brightness meets the brightness threshold value.
Step S433: when ambient brightness is higher than the brightness threshold value, then directly take digitized video.
Step S434: when ambient brightness is lower than the brightness threshold value, then detects photoflash lamp and whether be unlocked.
Step S441: when photoflash lamp is unlocked, then digital camera device is set at the screening-mode of synchroflash at a slow speed.
Step S442: when photoflash lamp is not unlocked, then digital camera device is set the screening-mode with time exposure.
Synchroflash at a slow speed in step S441 is taken and referred to: flash application is at long aperture time, and do not need to consider with safety shutter.So, digital camera device 100 can also obtain more ambient brightness light except the luminance compensation that can capture photoflash lamp.
The method of adjustment of the acquisition parameters of digitized video provided by the present invention, digital camera device 100 judges with the result that the optical gyroscope of taking the photograph in advance in the stage detects whether digital camera device 100 is in stable status according to the capture preview phase.If the hand shake takes place when taking the user, then digital camera device 100 can be according to current screening-mode adjustment acquisition parameters.Influence so as to hand is shaken digitized video drops to minimum.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (3)
1. the method for adjustment of the acquisition parameters of a digitized video is applied to a digital camera device when taking a digitized video,, it is characterized in that this method of adjustment may further comprise the steps in order to adjust a corresponding acquisition parameters:
Utilize a gyroscope to detect this digital camera device and whether be in a stable state, and detected result is exported a detection signal;
When this digital camera device is in a unsteady state, then carry out one first set-up procedure in order to adjust this acquisition parameters;
When this digital camera device is in this stable state, carry out an object image and detect step, be in a motion state or an inactive state in order to judge a subject;
Be this motion state when this digital camera device is in this stable state and this subject, carry out one second set-up procedure in order to adjust this acquisition parameters of this digital camera device;
Be this inactive state when this digital camera device is in this stable state and this subject, carry out one the 3rd set-up procedure in order to adjust this acquisition parameters of this digital camera device; And
Take this digitized video; Wherein
More may further comprise the steps in this first set-up procedure:
Detect an ambient brightness;
When this ambient brightness is lower than a brightness threshold value, then detects a photoflash lamp and whether be unlocked, and carry out following steps:
When this photoflash lamp was unlocked, then the aperture time with this digital camera device was set at the safety shutter time;
When this photoflash lamp was not unlocked, then the sensitization value with this digital camera device was set at maximum and switches to large aperture; And
When this ambient brightness is higher than this brightness threshold value, then detects this photoflash lamp and whether be unlocked, and carry out following steps:
When this photoflash lamp is unlocked, then directly take this digitized video;
When this photoflash lamp is not unlocked, judge whether the current shutter time of this digital camera device meets the safety shutter time; During the time, then directly take digitized video faster than this safety shutter when the current shutter time of this digital camera device; And
Be slower than this safety shutter during the time when the current shutter time of this digital camera device, the sensitization value of then adjusting this digital camera device is maximum and switches to large aperture.
2. the method for adjustment of the acquisition parameters of digitized video according to claim 1 is characterized in that, this second set-up procedure may further comprise the steps:
Shorten the aperture time of this digital camera device and heighten the sensitization value.
3. the method for adjustment of the acquisition parameters of digitized video according to claim 1 is characterized in that, more may further comprise the steps in the 3rd set-up procedure:
Reduce the sensitization value of this digital camera device;
Detect an ambient brightness, judge whether this ambient brightness meets a brightness threshold value;
When this ambient brightness is higher than this brightness threshold value, then directly take this digitized video;
When this ambient brightness is lower than this brightness threshold value, then detects a photoflash lamp and whether be unlocked;
When this photoflash lamp is unlocked, then this digital camera device is set at the screening-mode of synchroflash at a slow speed; And
When this photoflash lamp is not unlocked, then this digital camera device is set at the screening-mode of time exposure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009101339642A CN101867717B (en) | 2009-04-16 | 2009-04-16 | Adjusting method for photographic parameters of digital image and digital photographing device |
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| CN2009101339642A CN101867717B (en) | 2009-04-16 | 2009-04-16 | Adjusting method for photographic parameters of digital image and digital photographing device |
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| CN101867717B true CN101867717B (en) | 2012-05-30 |
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| JP5743579B2 (en) * | 2011-02-04 | 2015-07-01 | キヤノン株式会社 | Imaging apparatus, control method thereof, and program |
| TWI519156B (en) * | 2011-06-29 | 2016-01-21 | 宏達國際電子股份有限公司 | Image capture method and image capture system |
| CN102427509A (en) * | 2011-09-16 | 2012-04-25 | 杭州海康威视数字技术股份有限公司 | Device and method for controlling synchronization camera with light supplementing lamp |
| US9124800B2 (en) * | 2012-02-13 | 2015-09-01 | Htc Corporation | Auto burst image capture method applied to a mobile device, method for tracking an object applied to a mobile device, and related mobile device |
| US9179071B2 (en) * | 2013-02-01 | 2015-11-03 | Htc Corporation | Electronic device and image selection method thereof |
| CN103873776A (en) * | 2014-03-26 | 2014-06-18 | 惠州Tcl移动通信有限公司 | Method and system for making camera of mobile terminal adapt to scene automatically |
| CN105282420A (en) * | 2014-07-15 | 2016-01-27 | 中兴通讯股份有限公司 | Shooting realization method and device |
| CN104519282A (en) * | 2014-12-09 | 2015-04-15 | 小米科技有限责任公司 | Image shooting method and device |
| US9723218B2 (en) | 2014-12-09 | 2017-08-01 | Xiaomi Inc. | Method and device for shooting a picture |
| CN105827929A (en) * | 2015-01-06 | 2016-08-03 | 中兴通讯股份有限公司 | Photographing method and photographing device of mobile terminal camera |
| CN104811609A (en) * | 2015-03-03 | 2015-07-29 | 小米科技有限责任公司 | Photographing parameter adjustment method and device |
| CN104811619B (en) * | 2015-04-23 | 2018-12-25 | 小米科技有限责任公司 | Image-forming correction method and device, electronic equipment |
| CN105072338B (en) * | 2015-07-31 | 2018-02-16 | 广东欧珀移动通信有限公司 | A kind of method of adjustment and device of photo terminal safety shutter time |
| KR102345579B1 (en) * | 2015-12-15 | 2021-12-31 | 삼성전자주식회사 | Method, storage medium and apparatus for providing service associated with images |
| WO2018086262A1 (en) * | 2016-11-08 | 2018-05-17 | 华为技术有限公司 | Method for acquiring photographing reference data, mobile terminal and server |
| CN107888842B (en) * | 2017-12-28 | 2021-04-20 | 上海传英信息技术有限公司 | Flash lamp control method and control system based on intelligent terminal |
| CN108322663B (en) * | 2018-05-14 | 2021-05-07 | Oppo广东移动通信有限公司 | Photographing method, device, terminal and storage medium |
| CN110113538B (en) * | 2019-06-12 | 2021-07-16 | 北京百度网讯科技有限公司 | Intelligent shooting equipment, intelligent control method and device |
| CN110753188A (en) * | 2019-11-04 | 2020-02-04 | 深圳传音控股股份有限公司 | Terminal shooting method, terminal and readable storage medium |
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