CN101241294A - Camera shooting control method and its device - Google Patents
Camera shooting control method and its device Download PDFInfo
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- CN101241294A CN101241294A CN 200710084001 CN200710084001A CN101241294A CN 101241294 A CN101241294 A CN 101241294A CN 200710084001 CN200710084001 CN 200710084001 CN 200710084001 A CN200710084001 A CN 200710084001A CN 101241294 A CN101241294 A CN 101241294A
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Abstract
The invention relates to a photograph control method and a device thereof. Auto light-receiving environmental data are obtained by a photographing element, initial shutter exposure time and initial photosensitivity are calculated according to the environmental data, and judgement is performed according to a special mode. In the special mode, such as the initial shutter exposure time is shorter than or equal to the preset special time, images are photographed according to the initial shutter exposure time and the initial photosensitivity. If the initial shutter exposure time is longer than the preset special time, images are photographed with the final shutter exposure time and the final photosensitivity according to the preset special rules.
Description
Technical field
The present invention relates to a kind of camera head, particularly a kind of camera shooting control method and device thereof that utilizes electronic signal control to improve the shooting quality.
Background technology
Along with the epoch are progressive, many electronics technology products all tend to the design of microminiaturization.At commercially available shooting product, for example digital camera, camera cell phone are example, and be for meeting the operating characteristic that the consumer makes things convenient for portable, can make a video recording at any time, all light, thin, little based on volume.Therefore, digital camera has become one of necessary article in modern's life.
In all camera heads, often by consumer dirt sick be all to have the frivolous digital camera of the problem of rocking interference, particularly volume.Its reason is because the stability of the hand-held digital camera of user is not enough, therefore, and usually can be in the moment of pressing shutter; because the hand-held shake at that time of user, or the application of force of finger presses shutter act on camera main-body; the vibration that is caused, and then shoot ambiguous image.
Therefore, the technology that provides anti-hand to shake usually in the general camera head.In the anti-hand of known camera shook technology, camera head can be provided with sensor usually, and (Gyro Sensor) detects amount of movement or velocity of displacement as gyro sensor.According to the data that detect, calculate the displacement that needs compensation, and by the compensation lens set, according to the jitter direction of camera lens, and displacement compensated, thereby solves the vibration problem of camera.Yet most of sensor produces error because of problems such as environment temperature, humidity usually easily.
Secondly, in the anti-hand of known camera shook technology, camera head normally went out compensating value with processor according to the data estimation that sensor detecting goes out, and drove compensation lens set revisal vibratory output, to avoid image fog.Yet, come the shortcoming of revisal vibration to be to drive the compensation lens set:, to cause the mutual collision between eyeglass easily if the compensation lens set has excessive action.
Moreover, if optical means as is known, detect with sensor and to rock, and order about compensation lens set or image capturing unit according to shaking degree and do revisal, then must in camera head, add nextport hardware component NextPorts such as sensor and drive system again, so, will make the camera head volume increase again, and can't reach light, thin, the little target of overall volume.
Therefore, need provide a kind of electronics correction method, under the prerequisite that does not increase hardware structure and camera head volume, and then reach stable effect of making a video recording.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is, a kind of camera shooting control method and device thereof are provided, by shortening the shutter time shutter, improving light sensitivity, to reduce the defective of captured image fog.
The technical scheme that the present invention is adopted for its technical matters of solution provides a kind of camera shooting control method, and described camera shooting control method comprises following steps: step (A): obtain the environmental data that is subjected to light automatically; Step (B):, calculate initial shutter time shutter (t) and initial light sensitivity (ISO) according to described environmental data; Step (C): be less than or equal to a default special time (T) as the initial shutter time shutter (t), then according to initial shutter time shutter (t) and initial light sensitivity (ISO) picked-up image; Step (D): as the initial shutter time shutter (t) greater than default special time (T), then revise camera parameter, obtain final shutter time shutter (t ') and final light sensitivity (ISO '); And step (E):, and handle the image that is absorbed with final light sensitivity (ISO ') with final shutter time shutter (t ') picked-up image.
In camera shooting control method of the present invention, described step (D) comprises step (D1): if initially the shutter time shutter (t) was then set final shutter time shutter t '=t/3, and sets final light sensitivity ISO '=3*ISO greater than a very first time.
In camera shooting control method of the present invention, described step (D) also comprises step (D2): if initially the shutter time shutter (t) is less than or equal to the described very first time, and greater than one second time, then set final shutter time shutter t '=t/2, and set final light sensitivity ISO '=2*ISO.
In camera shooting control method of the present invention, described step (D) also comprises step (D3): if initially the shutter time shutter (t) is less than or equal to described second time, and greater than described special time, then setting the final shutter time shutter is t '=T, and sets final light sensitivity ISO '=ISO*t/T.
In camera shooting control method of the present invention, the described very first time is 250ms, and described second time be 33ms, described special time is 16.67ms.
The present invention also provides a kind of video camera controller, and described video camera controller comprises:
One driver element; One camera lens in order to take in image, comprises an aperture and a shutter, and this aperture is electrically connected with described driver element, and described shutter is electrically connected with described driver element; One image capturing unit is in order to the imaging picked-up image of foundation camera lens; One analog/digital conversion unit is connected in this image capturing unit, becomes digital image signal in order to the analog image conversion of signals that this image capturing unit is exported; And a main control unit, be connected in this driver element, order about this driver element control shutter and aperture; This main control unit is connected in this analog/digital conversion unit, deposits the digital image data that this image capturing unit is exported in order to tired, and assesses out ambient brightness according to digital image data;
Described main control unit comprises central processing unit, and described central processing unit comprises: computing module calculates initial shutter time shutter (t) and initial light sensitivity (ISO) according to ambient brightness; Judgment amendment module is used for being less than or equal to a special time when the initial shutter time shutter (t), and shutter parameter and sensitization parameter are set to initial shutter time shutter (t) and initial light sensitivity (ISO); When the initial shutter time shutter (t) greater than default special time, shutter parameter and sensitization parameter are set to final shutter time shutter (t ') and final light sensitivity (ISO '); And control module, be used for setting according to described judgment amendment module, control described driver element and described analog/digital conversion unit.
In video camera controller of the present invention, described main control unit also comprises the mnemon that is electrically connected with described central processing unit, and described mnemon is connected between described central processing unit and the described analog/digital conversion unit.
In video camera controller of the present invention, described judgment amendment module comprises first correcting module, be used for working as the initial shutter time shutter (t) greater than a very first time, set final shutter time shutter t '=t/3, and set final light sensitivity ISO '=3*ISO.
In video camera controller of the present invention, described judgment amendment module also comprises second correcting module, be used for being less than or equal to the very first time and greater than one second time when the initial shutter time shutter (t), set final shutter time shutter t '=t/2, and set final light sensitivity ISO '=2*ISO.
In video camera controller of the present invention, described judgment amendment module also comprises the 3rd correcting module, be used for being less than or equal to described second time and greater than described special time (T) when the initial shutter time shutter (t), set final shutter time shutter t '=T, and set final light sensitivity ISO '=ISO*t/T.
In video camera controller of the present invention, described special time (T) is 16.67ms, and the described very first time is 250ms, and described second time is 33ms.
The present invention assesses out ambient brightness by digital image data, and this main control unit is according to ad hoc rules change shutter time shutter and light sensitivity.When initial shutter time shutter (t) when exceeding Preset Time, make the moving driver element control of this horse shutter in (the t ') exposure of shorter final shutter time shutter, and above-mentioned signal feedback to this analog/digital conversion unit, make the analog/digital conversion unit improve light sensitivity (ISO ').
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the operation workflow figure of camera shooting control method of the present invention;
Fig. 2 is the operation workflow figure of the camera shooting control method of the present invention under AD HOC; And
Fig. 3 is the circuit block diagram of video camera controller of the present invention.
101～105: flow process 201～209: flow process
310: motor drive unit 311: input end
313: the second output terminals of 312: the second output terminals
320: camera lens 321: aperture
322: shutter 330: the image capturing unit
331: output terminal 340: the analog/digital conversion unit
341: 342: the second input ends of first input end
343: output terminal 350: main control unit
351: 352: the first output terminals of input end
370: mnemon 380: storage element
Av: aperture parameters Bv: ambient brightness
Sv: sensitization parameter Tv: shutter parameter
Embodiment
With reference to Fig. 1, be the operation workflow figure of the camera shooting control method of one embodiment of the invention.
Camera shooting control method of the present invention can be applicable to have anti-hand the shake camera system or the camera head of function, for example digital camera.
The camera shooting control method of one embodiment of the invention comprises following steps:
Step (A): obtain the environmental data that is subjected to light automatically;
Step (B):, calculate initial shutter time shutter (t) and initial light sensitivity (ISO) according to this environmental data;
Step (C): judge according to an AD HOC, as the initial shutter time shutter (t) smaller or equal to a default special time, then according to initial shutter time shutter (t) and initial light sensitivity (ISO) picked-up image;
Step (D): as the initial shutter time shutter (t) greater than default special time, then according to a default ad hoc rules correction camera parameter, obtain final shutter time shutter (t ') and final light sensitivity (ISO '); And
Step (E):, and handle the image that is absorbed with final light sensitivity (ISO ') with final shutter time shutter (t ') picked-up image.
Step 1: as flow process 101.After camera system activates, receive image data according to default automatic exposure parameter earlier, to obtain the environmental data that is subjected to light automatically.
Step 2: as flow process 102.After camera system receives pre-bat indication, under pre-bat state,, calculate ambient brightness Bv, aperture parameters Av, shutter parameter Tv according to this image data, and sensitization parameter S v etc.At this moment, shutter parameter Tv is the initial shutter time shutter (t), and sensitization parameter S v is initial light sensitivity (ISO).
Step 3: as flow process 103.Judge that whether camera system is under the AD HOC that activates stable shooting, as not, then carries out flow process 104; In this way, then carry out flow process 105.
Step 4: as flow process 104.Expose with the initial shutter time shutter (t) and absorb image according to the aperture parameters Av that is calculated in the flow process 102, and the image data that absorbed according to initial light sensitivity (ISO) processing of camera system.
Step 5: as flow process 105.Under the AD HOC that activates stable shooting, compare the initial shutter time shutter (t) that is calculated in the flow process 102.If the initial shutter time shutter (t) is greater than default special time, then estimate the final shutter time shutter (t ') and final light sensitivity (ISO '), shutter parameter Tv and sensitization parameter S v are revised as the final shutter time shutter (t ') and final light sensitivity (ISO ') respectively according to default ad hoc rules.And proceed to flow process 104, expose and absorb image according to the final shutter time shutter (t '), and the image data that absorbed according to final light sensitivity (ISO ') processing of camera system.
With reference to Fig. 2, be the operation workflow figure of the camera shooting control method of the present invention under AD HOC.
With reference to Fig. 1 and Fig. 2.In the execution shooting flow process 102 of Fig. 1, camera parameter includes ambient brightness Bv, aperture parameters Av, shutter parameter Tv and sensitization parameter S v; At this moment, shutter parameter Tv is the initial shutter time shutter (t), and sensitization parameter S v is initial light sensitivity (ISO).And in activating under the AD HOC, above-mentioned flow process 105 revises again or final shutter time shutter of confirming to have changed (t ') and finally the method for light sensitivity (ISO ') comprise following execution in step:
Activated start under the AD HOC when system defaults in, then carry out flow process 201, obtain the initial shutter time shutter (t) and initial light sensitivity (ISO) that are estimated in the above-mentioned flow process 102.
As flow process 202, whether judge the initial shutter time shutter (t) greater than the very first time, 250ms for example, as not, promptly the initial shutter time shutter (t) is less than or equal to the very first time, then carries out flow process 205; In this way, then carry out flow process 203, the initial shutter time shutter (t) is shortened to original 1/3rd, be about to the initial shutter time shutter (t) to change to the first shutter time shutter (t
1=t/3), and initial light sensitivity (ISO) zoomed into original three times, be about to initial light sensitivity (ISO) and change to the first light sensitivity (ISO
1=3*ISO).
Then, as flow process 204, the amended final shutter time shutter of system update (t '=t
1) be shutter parameter Tv, and upgrade final light sensitivity (ISO '=ISO
1) for sensitization parameter S v, and can be according to final shutter time shutter (t ') and final light sensitivity (ISO '), the flow process 104 in Fig. 1 is exposed and is absorbed image.
As flow process 205, whether judge the initial shutter time shutter (t) greater than second time, 33ms for example, as not, promptly the initial shutter time shutter (t) was less than or equal to for second time, then carried out flow process 207; In this way, then carry out flow process 206, the initial shutter time shutter (t) is shortened to original 1/2nd, be about to the initial shutter time shutter (t) to change to the second shutter time shutter (t
2=t/2), and initial light sensitivity (ISO) zoomed into original twice, be about to initial light sensitivity (ISO) and change to the second light sensitivity (ISO
2=2*ISO).Then, as flow process 204, the final shutter time shutter of system update modification back (t '=t
2) be shutter parameter Tv, and upgrade final light sensitivity (ISO '=ISO
2) for sensitization parameter S v, and can be according to final shutter time shutter (t ') and final light sensitivity (ISO '), the flow process 104 in Fig. 1 is exposed and is absorbed image.
As flow process 207, whether judge the initial shutter time shutter (t) greater than a special time (T), for example 16.67ms as not, then carries out flow process 209; In this way, then carry out flow process 208, the initial shutter time shutter (t) is changed to the 3rd shutter time shutter (t
3), wherein, the 3rd shutter time shutter (t
3) be T, i.e. 16.67ms, and initial light sensitivity (ISO) changed to the 3rd light sensitivity (ISO
3).Wherein, this 3rd light sensitivity (ISO
3) for multiply by the initial shutter time shutter (t), initial light sensitivity (ISO) removes last T, i.e. ISO again
3(with 16.67 is example, i.e. ISO to=ISO*t/T
3=ISO*t/16.67); Then, as flow process 204, the amended final shutter time shutter of system update (t '=t
3) be shutter parameter Tv, and upgrade final light sensitivity (ISO '=ISO
3) for sensitization parameter S v, and can be according to final shutter time shutter (t ') and final light sensitivity (ISO '), the flow process 104 in Fig. 1 is exposed and is absorbed image.
As flow process 209, when the initial shutter time shutter (t) less than special time (T), i.e. the 16.67ms of example among the figure does not then rechange initial shutter time shutter (t) and initial light sensitivity (ISO).Then, as flow process 204, system reaffirms that shutter parameter Tv is final shutter time shutter (t '), be the initial shutter time shutter (t), and sensitization parameter S v is final light sensitivity (ISO '), be initial light sensitivity (ISO), and can be according to final shutter time shutter (t ') and final light sensitivity (ISO '), the flow process 104 in Fig. 1 is exposed and is absorbed image.
According to the parameter of different camera heads and different requirements, can set different special time (T), the very first time and second time.
With reference to Fig. 3, be the circuit block diagram of video camera controller of the present invention, can implement above-mentioned camera shooting control method by this video camera controller, for for purpose of brevity, no longer the details to camera shooting control method is described.
Video camera controller of the present invention comprises a motor drive unit 310, a camera lens 320, an image capturing unit 330, an analog/digital conversion unit 340, and a main control unit 350.
This motor drive unit 310 comprises an input end 311, one first output terminal 312 and one second output terminal 313.
This camera lens 320 is in order to take in image.This camera lens 320 comprises an aperture 321 and a shutter 322.This aperture 321 is electrically connected with first output terminal 312 of this motor drive unit 310, in order to receive control signal Av from this motor drive unit 310, this shutter 322 is electrically connected with second output terminal 313 of this motor drive unit 310, in order to receive the control signal Tv from this motor drive unit 310.
This image capturing unit 330 is in order to the imaging picked-up image of foundation camera lens 320.This image capturing unit 330 includes an output terminal 331.The light beam that this image capturing unit 330 is accepted from this camera head outside by this camera lens 320.In this embodiment, this image capturing unit 330 is any of Charged Coupled Device (CCD), complementary metal oxide semiconductor (CMOS).
This analog/digital conversion unit (AFE, Analog Front End) 340, become digital image signal in order to the analog image conversion of signals that this image capturing unit 330 is exported, and comprise a first input end 341, one second input end 342, an output terminal 343.This first input end 341 is connected in the output terminal 331 of this image capturing unit 330, in order to transmit the analog image signal that this image capturing unit 330 is exported.
This main control unit 350 has an input end 351, one first output terminal 352, and one second output terminal 353.This main control unit 350 comprises a central processing unit 360, a mnemon 370, and a storage element 380.This mnemon 370 can be a synchronous Dram (SDRAM), and is connected between this central processing unit 360 and this analog/digital conversion unit 340, in order to the tired image digital data of depositing.This storage element 380 can be to be installed in camera inside removedly, and this storage element 380 can repeat to store and the data of erasing.This storage element 380 can be CF card, SD card, MS card, or the like.
Described judgment amendment module comprises: first correcting module, be used for working as the initial shutter time shutter (t) greater than a very first time, and set final shutter time shutter t '=t/3, and set final light sensitivity ISO '=3*ISO; Second correcting module is used for being less than or equal to the very first time and greater than one second time, setting final shutter time shutter t '=t/2, and set final light sensitivity ISO '=2*ISO when the initial shutter time shutter (t); The 3rd correcting module is used for being less than or equal to described second time and greater than described special time (T), setting final shutter time shutter t '=T, and set final light sensitivity ISO '=ISO*t/T when the initial shutter time shutter (t).
After external beam enters camera head by above-mentioned camera lens 320, this image capturing unit 330 is accepted external beam immediately, and make that by this image capturing unit 330 Beam Transformation is the analog image signal, change unit 340 via this analog/digital the analog image conversion of signals is become digital image signal, again the imaging digital image signal is sent to storage element 380.When the user assigns shooting or expose instructions such as locking (AE Lock), above-mentioned central processing unit 360 can capture the digital image signal that comes from storage element 380 current points in time, and estimates current ambient brightness Bv, aperture parameters Av, exposure parameter Tv and sensitization parameter S v by its computing module.At this moment, exposure parameter Tv is that initial shutter time shutter (t) and sensitization parameter S v are initial light sensitivity (ISO).And this moment, then this central processing unit 360 judged that by its judgment amendment module whether the initial shutter time shutter (t) is greater than default special time (T) earlier before sending the shooting order if camera head is set under the AD HOC that anti-hand shakes; If not, judge that then the initial shutter time shutter (t) is the final shutter time shutter (t '), and judge that initial light sensitivity (ISO) is final light sensitivity (ISO '); If then set final shutter time shutter (t ') and final light sensitivity (ISO ') according to default ad hoc rules.After this central processing unit 360 is determined final shutter time shutter (t ') and final light sensitivity (ISO '), set shutter parameter Tv and sensitization parameter S v according to final shutter time shutter (t ') and final light sensitivity (ISO ') respectively, and send drive signal by its control device, order about this motor drive unit 310 respectively according to said aperture parameter A v and shutter parameter Tv control shutter 322 and aperture 321; And this central processing unit 360 sends sensitization parameter S v to this analog/digital conversion unit 340 by second output terminal 353 of this main control unit 350, makes this analog/digital conversion unit 340 handle digital image signal according to final light sensitivity (ISO ').
What must illustrate is that under the state of camera system start, even the user does not assign instructions such as shooting or exposure locking, the image capturing unit can continue to be subjected to light with the automatic exposure parameter of presetting usually.Therefore, when camera system receive shooting or exposure locking wait instruct after, the image data that last time point is subjected to light can absorb in system, calculates current ambient brightness Bv, aperture parameters Av, shutter parameter Tv and sensitization parameter S v.Wherein, the user can change default automatic exposure parameter according to demands of individuals, for example, and Night, dynamic image pattern or bat/close-perspective recording isotype far away.And in the present invention, the user can activate or close the AD HOC of stable shooting according to demands of individuals, but not in order to limit the present invention.
As for the ad hoc rules of, correction shutter time shutter of described camera head (t '), as described in Figure 2, this repeats no more.
Conclude above-mentioned, for solving general camera head suffered external vibration during shooting, the present invention adopts with environmental baseline as a reference, whether and it is long to differentiate the initial shutter time shutter (t) according to ad hoc rules, and use and shorten the shutter time shutter, improve light sensitivity, the problem of the image fog when slowing down shooting.Therefore, the present invention is to be basic parameter with environmental baseline (brightness), make video camera controller can comply with residing environment, at any time revise shutter time shutter and light sensitivity, thus, under the prerequisite of shutter time shutter shortening, the vibration interference during the shooting reduces relatively, can reach the stable effect of image really.
Though the present invention discloses as above with an embodiment; but it is not in order to limit the present invention; those of ordinary skill in the art; without departing from the spirit and scope of the present invention; when can doing various changes and retouching, thus protection scope of the present invention when with the accompanying Claim scope the person of being defined be as the criterion.
Claims (11)
1. a camera shooting control method is characterized in that, described camera shooting control method comprises following steps:
Step (A): obtain the environmental data that is subjected to light automatically;
Step (B):, calculate initial shutter time shutter (t) and initial light sensitivity (ISO) according to described environmental data;
Step (C): be less than or equal to a default special time (T) as the initial shutter time shutter (t), then according to initial shutter time shutter (t) and initial light sensitivity (ISO) picked-up image;
Step (D): as the initial shutter time shutter (t) greater than default special time (T), then revise camera parameter, obtain final shutter time shutter (t ') and final light sensitivity (ISO '); And
Step (E):, and handle the image that is absorbed with final light sensitivity (ISO ') with final shutter time shutter (t ') picked-up image.
2. camera shooting control method according to claim 1, it is characterized in that, described step (D) comprises step (D1): if initially the shutter time shutter (t) was then set final shutter time shutter t '=t/3, and sets final light sensitivity ISO '=3*ISO greater than a very first time.
3. camera shooting control method according to claim 2, it is characterized in that, described step (D) also comprises step (D2): if initially the shutter time shutter (t) is less than or equal to the described very first time, and greater than one second time, then set final shutter time shutter t '=t/2, and set final light sensitivity ISO '=2*ISO.
4. camera shooting control method according to claim 3, it is characterized in that, described step (D) also comprises step (D3): if initially the shutter time shutter (t) is less than or equal to described second time, and greater than described special time (T), then setting the final shutter time shutter is t '=T, and sets final light sensitivity ISO '=ISO*t/T.
5. camera shooting control method according to claim 4 is characterized in that, the described very first time is 250ms, and described second time be 33ms, described special time is 16.67ms.
6. a video camera controller is characterized in that, described video camera controller comprises:
One driver element;
One camera lens in order to take in image, comprises an aperture and a shutter, and this aperture is electrically connected with described driver element, and described shutter is electrically connected with described driver element;
One image capturing unit is in order to the imaging picked-up image of foundation camera lens;
One analog/digital conversion unit is connected in this image capturing unit, becomes digital image signal in order to the analog image conversion of signals that this image capturing unit is exported; And
One main control unit is connected in this driver element, orders about this driver element control shutter and aperture; This main control unit is connected in this analog/digital conversion unit, deposits the digital image data that this image capturing unit is exported in order to tired, and assesses out ambient brightness according to digital image data;
Described main control unit comprises central processing unit, and described central processing unit comprises:
Computing module calculates initial shutter time shutter (t) and initial light sensitivity (ISO) according to ambient brightness;
Judgment amendment module is used for being less than or equal to a special time when the initial shutter time shutter (t), and shutter parameter and sensitization parameter are set to initial shutter time shutter (t) and initial light sensitivity (ISO); When the initial shutter time shutter (t) greater than default special time, shutter parameter and sensitization parameter are set to final shutter time shutter (t ') and final light sensitivity (ISO '); And
Control module is used for the setting according to described judgment amendment module, controls described driver element and described analog/digital conversion unit.
7. video camera controller according to claim 6, it is characterized in that, described main control unit also comprises the mnemon that is electrically connected with described central processing unit, and described mnemon is connected between described central processing unit and the described analog/digital conversion unit.
8. video camera controller according to claim 6, it is characterized in that described judgment amendment module comprises first correcting module, be used for working as the initial shutter time shutter (t) greater than a very first time, set final shutter time shutter t '=t/3, and set final light sensitivity ISO '=3*ISO.
9. video camera controller according to claim 8, it is characterized in that, described judgment amendment module also comprises second correcting module, be used for being less than or equal to the very first time and greater than one second time when the initial shutter time shutter (t), set final shutter time shutter t '=t/2, and set final light sensitivity ISO '=2*ISO.
10. video camera controller according to claim 9, it is characterized in that, described judgment amendment module also comprises the 3rd correcting module, be used for being less than or equal to described second time and greater than described special time (T) when the initial shutter time shutter (t), set final shutter time shutter t '=T, and set final light sensitivity ISO '=ISO*t/T.
11. video camera controller according to claim 9 is characterized in that, described special time (T) is 16.67ms, and the described very first time is 250ms, and described second time is 33ms.
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| CN 200710084001 CN101241294B (en) | 2007-02-06 | 2007-02-06 | Camera shooting control method and its device |
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| JP4530961B2 (en) * | 2005-06-30 | 2010-08-25 | オリンパスイメージング株式会社 | Electronic image stabilization device |
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