CN104717419A - Auto-focusing image capturing device and method - Google Patents
Auto-focusing image capturing device and method Download PDFInfo
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- CN104717419A CN104717419A CN201310718740.4A CN201310718740A CN104717419A CN 104717419 A CN104717419 A CN 104717419A CN 201310718740 A CN201310718740 A CN 201310718740A CN 104717419 A CN104717419 A CN 104717419A
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Abstract
The invention discloses an auto-focusing image capturing device and method. The device comprises a first image capturing module for producing prompt image data of a target according to the target, and a second image capturing module for deciding whether to focus again and produce image data of the target or not according to the prompt image data, wherein the first frame speed of the first image capturing module is larger than the second frame speed of the second image capturing module, and the prompt image data include object distance data and field depth data.
Description
Technical field
The present invention relates to a kind of auto-focusing image capturing device and image acquisition method, particularly relate to a kind of the auto-focusing image capturing device and the image acquisition method that utilize at least two image acquisition modules to carry out quickly picking image.
Background technology
Image capturing device traditionally, the camera lens module of such as digital camera, running gear or S.L.R etc., its usual operator scheme is at least one pair of focus lens mobile, by collecting the multiple image definition angle value under multiple position to focus lens, and then the highest image definition angle value is tried to achieve from multiple image definition angle value, namely complete focus operation, and the position corresponding to it is to the focus of focus lens relative to object.
In other words, whether whether image capturing device correctly can operate and need build on its focus operation and can complete fast, as for obtaining of image definition angle value, implementation on hardware comprises by the conventional autofocus sensor (AF sensor) of S.L.R or uses image sensor (Image sensor), wherein, the usefulness of autofocus sensor will depend on its sample rate, namely mobile faster is the autofocus sensor that efficiency is higher to focus lens, then being limited to pick-up image mode as image sensor needs the exposure of long period to carry out pick-up image, and higher sample rate cannot be applicable to.In the case, shorten the focusing time of image capturing device if want, the time for exposure of each picture will certainly be sacrificed, make the image quality reduction sampling rear picture.
In addition, another kind of image capturing device as photographic camera the operator scheme that uses, can be regarded as continuous focusing (Continue AF) pattern, namely image capturing device will continue the operation carrying out focusing, the most clear to guarantee that instantly captured picture is all.But, the operational drawbacks of continuous focusing by how in each picture of acquisition instantly, judge that this picture has the highest image definition, accordingly, existing common solution is for carrying out a scene detection, tentatively to focus the characteristic value obtained corresponding to each picture by one, the mean flow rate of such as picture, block brightness, definition or the position etc. corresponding to individually defined thing, whether the change of judging characteristic value determines whether re-starting focusing more than a preset range again, only above operation still has may producing of the characteristic value of the scene that continues to occur to correctly judge.
Therefore, provide another kind can the image capturing device of auto-focusing and image acquisition method, become the important topic of this area.
Summary of the invention
Therefore, namely main purpose of the present invention is to provide a kind of auto-focusing image capturing device and image acquisition method, and it can utilize at least two image acquisition modules to come fast and pick-up image expediently.
The present invention discloses a kind of auto-focusing image capturing device, comprises one first image acquisition module, is used for according to an object, produces the prompting image data relative to this object; And one second image acquisition module, be used for according to this prompting image data, determine whether again focus and produce the image data relative to this object; Wherein, this one first frame rate corresponding to the first image acquisition module is greater than this one second frame rate corresponding to the second image acquisition module, and this prompting image data comprises object distance data and a depth of field data.
The open another kind of image acquisition method being used for an auto-focusing image capturing device of the present invention, this auto-focusing image capturing device comprises one first image acquisition module and one second image acquisition module, this image acquisition method comprises according to an object, produces the prompting image data relative to this object by this first image acquisition module; And according to this prompting image data, determine whether again focus and produce the image data relative to this object by this second image acquisition module; Wherein, this one first frame rate corresponding to the first image acquisition module is greater than this one second frame rate corresponding to the second image acquisition module, and this prompting image data comprises object distance data and a depth of field data.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention one auto-focusing image capturing device 10.
Fig. 2 is the detailed maps of the embodiment of the present invention one auto-focusing image capturing device 20.
Fig. 3 is the detailed maps of another auto-focusing image capturing device 30 of the embodiment of the present invention.
Fig. 4 is the detailed maps of another auto-focusing image capturing device 40 of the embodiment of the present invention.
Fig. 5 is the detailed maps of another auto-focusing image capturing device 50 of the embodiment of the present invention.
Fig. 6 is the schematic diagram of a focusing Map Searching table 60 in the embodiment of the present invention.
Fig. 7 is the schematic diagram of another focusing Map Searching table 70 in the embodiment of the present invention.
Fig. 8 is the flow chart of the embodiment of the present invention one image capture flow process 80.
Wherein, description of reference numerals is as follows:
10,20,30,40,50 auto-focusing image capturing devices
100,200,400 first image acquisition modules
102,202,502 second image acquisition modules
104 display modules
2000 first automatic focusing modules
2002,4,002 first processing modules
2020 second automatic focusing modules
2022 second processing modules
44 optical processing unit
54 modular converters
60,70 focusing Map Searching tables
80 image capture flow processs
800,802,804,806 steps
C1, C2 transformation curve
L1, L2 autofocus lens
M1, M2 autofocus motor
Embodiment
Some vocabulary is employed to censure specific assembly in the middle of specification and follow-up claim.Person with usual knowledge in their respective areas should understand, and same assembly may be called with different nouns by manufacturer.This specification and follow-up claim are not used as with the difference of title the mode distinguishing assembly, but are used as the benchmark of difference with assembly difference functionally." comprising " mentioned in the middle of specification and follow-up claim is in the whole text an open term, therefore should be construed to " comprise but be not limited to ".In addition, " couple " word comprise directly any at this and be indirectly electrically connected means.Therefore, if describe a first device in literary composition to be coupled to one second device, then represent this first device and can be directly connected in this second device, or be indirectly connected to this second device by other devices or connection means.
Please refer to Fig. 1, Fig. 1 is the schematic diagram of the embodiment of the present invention one auto-focusing image capturing device 10.As shown in Figure 1, auto-focusing image capturing device 10 comprises one first image acquisition module 100,1 second image acquisition module 102 and a display module 104.In the present embodiment, mutual electric property coupling between the first image acquisition module 100 and the second image acquisition module 102, mutual electric property coupling between display module 104 then and the second image acquisition module 102, accordingly, first image acquisition module 100 will according to an object, produce the prompting image data relative to object, and the second image acquisition module 102 will according to prompting image data, determine whether again focus and produce the image data relative to object, finally again by the image data of display module 104 display-object thing.Certainly, the present embodiment does not limit and only carrys out image data displaying by display module 104, namely the image data that the second image acquisition module 102 produces also can transfer to another computer system or an image processing server, and carry out editing according to the demand of user, output display or backup etc., be also category of the present invention.
In the present embodiment, the prompting image data that first image acquisition module 100 produces comprises object distance data relative to object and a depth of field data, accordingly, second image acquisition module 102 is with reference to object distance data and depth of field data, to judge whether it needs again to focus, or corresponding conversion and the object distance data of applying mechanically acquired by the first image acquisition module 100 and depth of field data, then produce the image data relative to object.Preferably, in the present embodiment, the first image acquisition module 100 and the second image acquisition module 102 are respectively to having one first frame rate (Frame rate) and one second frame rate, and the first frame rate will be greater than the second frame rate.In the case, the first image acquisition module 100 due to the present embodiment has higher frame rate (time namely sampling picture is short), make the first image acquisition module 100 can complete focus operation within a short period, and provide the defocused object distance data relative to object and depth of field data to the second image acquisition module 102, simultaneously, second image acquisition module 102 with reference to and change the prompting image data of the first image acquisition module 100, and utilize lower frame rate (time namely sampling picture is long) to capture the image data of better quality, and then image output data are follow-up display or edit operation.
In brief, the present embodiment auto-focusing image capturing device 10 uses two image acquisition modules simultaneously, wherein one (i.e. the first image acquisition module 100) can be considered auxiliary image capture operation, and there is higher frame rate to obtain short advantage sample time, another one (i.e. the second image acquisition module 102) can be considered main image capture operation, and have lower frame rate to obtain the advantage of better picture element, accordingly, user can complete focus operation within the short period, can obtain again the image data of better quality simultaneously.Single image acquisition module is only comprised compared to traditional image capturing device, and must select between two factors such as sample rate and time for exposure, the appropriate autofocus sensor of specification is picked out or image sensor carrys out image output data with correspondence, the auto-focusing image capturing device 10 of the present embodiment really has the short time concurrently and completes focus operation, also obtain the feature of the image data of high image quality simultaneously, and then improve the range of application of auto-focusing image capturing device 10.
Please refer to Fig. 2, Fig. 2 is the detailed maps of the embodiment of the present invention one auto-focusing image capturing device 20.In the present embodiment, the auto-focusing image capturing device 20 of Fig. 2 is for being used for clearly demonstrating the internal structure of Fig. 1 auto-focusing image capturing device 10, and similar assembly will be continued to use identical label to be described.As shown in Figure 2, one first image acquisition module 200 comprises one first automatic focusing module 2000 and one first processing module 2002, and one second image acquisition module 202 comprises one second automatic focusing module 2020 and one second processing module 2022, and the second processing module 2022 that the first processing module 2002 of the first image acquisition module 200 is also electrically coupled to the second automatic focusing module 2020, second image acquisition module 202 of the second image acquisition module 202 is then electrically coupled to display module 104.Specifically, first automatic focusing module 2000 also comprises an an autofocus lens L1 and autofocus motor M1, be used for according to the position of object, produce one first view data, and the first processing module 2002 is coupled to the first automatic focusing module 2000, be used for reception first view data, to produce prompting image data.In addition, second automatic focusing module 2020 also comprises an an autofocus lens L2 and autofocus motor M2, be used for according to prompting image data, produce one second view data, and the second processing module 2022 is coupled to the second automatic focusing module 2020, be used for reception second view data, to produce image data.
Moreover, after the first processing module 2002 in Fig. 2 embodiment accepts the first view data, correspondence is produced the focusing situation that one first definition values data judge current image date, adaptive produces a feedback information to autofocus motor M1 simultaneously, autofocus motor M1 is made to may correspond to the position of adjustment autofocus lens L1, to continue generation first view data and to transfer to the first processing module 2002.In other words, the first automatic focusing module 2000 will obtain multiple view data on multiple focusing position, and judge whether the focus operation corresponding to multiple first definition values data completes by the first processing module 2002.If focus operation not yet completes, first processing module 2002 is by generation feedback information and transfer to autofocus motor M1, be used for informing that the current focus operation of autofocus motor M1 not yet completes, position (i.e. advance or the slow astern fixed displacement amount of autofocus lens L1 must be adjusted again by autofocus motor M1, or alternately advance in anticipation focal position place and slow astern not particular displacement amount, obtain best definition values data), and then continue to obtain the first view data and the first corresponding definition values data thereof, observe the need of repeating this step more simultaneously, obtain multiple first view data and corresponding multiple first definition values data thereof, if focus operation completes, both by the object distance data that determine corresponding to current goal thing and depth of field data, and are converged whole the second automatic focusing module 2020 for transferring to the second image acquisition module 202 after prompting image data by the first processing module 2002.
Continue with reference to figure 2, in the second image acquisition module 202, the prompting image data that reception first processing module 2002 is transmitted by the second automatic focusing module 2020, to produce one second view data, and the second processing module 2022 is coupled to the second automatic focusing module 2020, be used for reception second view data, to produce image data.Preferably, second automatic focusing module 2020 comprises an an autofocus lens L2 and autofocus motor M2, and the object distance data that reception first processing module 2002 is transmitted by autofocus motor M2 and depth of field data, and then judge whether to carry out focus operation again, or the object distance data that direct conversion the first processing module 2002 is transmitted and depth of field data also corresponding generation the second view data, then, received by the second processing module 2022 again and change the second view data into the second definition values data, and corresponding image output data carry out follow-up display or edit operation to display module 104.
Moreover the second view data that the second processing module 2022 also can produce with reference to the second automatic focusing module 2020, to judge whether to carry out focus operation again.If desired focus operation is carried out again, second processing module 2022 is by generation one feedback information and transfer to autofocus motor M2, be used for informing that the current focus operation of autofocus motor M2 not yet completes, position (i.e. advance or the slow astern fixed displacement amount of autofocus lens L2 must be adjusted again by autofocus motor M2, or alternately advance and slow astern not particular displacement amount in anticipation focal position place, obtain best definition values data), to continue to obtain the second view data and the second corresponding definition values data thereof.Accordingly, second processing module 2022 judges whether to repeat this step by continuing, to repeat to obtain multiple second view data and corresponding multiple second definition values data thereof, otherwise the second processing module 2022 will according to acquired at least one second view data, corresponding produce and image output data to display module 104, and then provide user to be display or editor's image data.
Notably, in the present embodiment, the first processing module 2002 and the second processing module 2022 also comprise a sensing unit (not shown) and a graphics processing unit (not shown) respectively, and known by the person of this area, sensing unit is used for coupling and responds to autofocus lens L1, the light signal that L2 produces, with corresponding conversion for first and second view data transfers to graphics processing unit, calculated by graphics processing unit correspondence and produced the first definition values data (or second definition values data) corresponding to the first view data (or second view data) again, and then export prompting image data (or image data).Preferably, the first view data common in the present embodiment or the second image data format, common as being RAW, TIFF, JPEG, BMP or GIF etc., and the first definition values data changed or the second definition values data, then by such as summation modulus difference (Sum-Modulus Difference, SMD) method calculates, form as image data can be identical with first, second view data, or as long as user can be facilitated to carry out display and the editor of image data, all belong to category of the present invention.
In addition, the autofocus lens L1 carried in the present embodiment, L2 and autofocus motor M1, the quantity of M2 and mode of operation, exemplary explanation is only at this, in other words, autofocus lens L1, L2 and autofocus motor M1, the quantity of M2 and mode of operation, adaptive setting and adjustment can be carried out according to the set-up mode of different user demands or object the position of auto-focusing image capturing device (or relative to), the first view data is obtained as long as may correspond to, second view data, first definition values data and the second definition values data person, also be category of the present invention.
Moreover, autofocus lens L1 in the present embodiment, L2 also can use identical or different specification, accordingly, as autofocus lens L1, during L2 use different size, because the first image acquisition module 200 can be considered the image capture operation only providing auxiliary, therefore, first automatic focusing module 2000 only needs the associative operation meeting rapid focus, make the optical imagery parameter corresponding to autofocus lens L1 as the resolution etc. of transducer in the visual angle (Focus of View) of camera lens or the first processing module 2002, only in order to provide preliminary focus operation, as for the image capture operation that the second image acquisition module 202 is main, therefore, for imaging parameters (the such as visual angle of the second automatic focusing module 2020 and the second processing module 2022, color-resolution, scene color temperature or saturation etc.) requirement, naturally can higher than the first automatic focusing module 2000 and the first processing module 2002 many, and then provide more complete focus operation and image output to operate.
Please refer to Fig. 3, Fig. 3 is the detailed maps of another auto-focusing image capturing device 30 of the embodiment of the present invention.As shown in Figure 3, the auto-focusing image capturing device 30 of Fig. 3 is similar with the auto-focusing image capturing device 20 of Fig. 2, wherein similar assembly will be continued to use identical label to be described, and auto-focusing image capturing device 30 and the difference of auto-focusing image capturing device 20 are, the prompting image data (comprising the object distance data relative to object and depth of field data) that first processing module 2002 produces will directly transfer to the second processing module 2022, and judge whether that producing feedback signal to the second automatic focusing module 2020 again carries out focus operation again by the second processing module 2022, then, the position of adjustment autofocus lens L2 is obtained best definition values data by autofocus motor M2, or judge that the second automatic focusing module 2020 does not need again to focus, and another conversion focal position directly corresponding to the focal position of autofocus motor M2 reference autofocus lens L1, the second view data is obtained with mobile autofocus lens L2, again through the second processing module 2022 image output data.
Please refer to Fig. 4, Fig. 4 is the detailed maps of another auto-focusing image capturing device 40 of the embodiment of the present invention.As shown in Figure 4, the auto-focusing image capturing device 40 of Fig. 4 is similar with the auto-focusing image capturing device 30 of Fig. 3, wherein similar assembly will be continued to use identical label to be described, and auto-focusing image capturing device 40 and the difference of auto-focusing image capturing device 30 are, in one auto-focusing image capturing device 40, one first processing module 4002 of the first image acquisition module 400 also comprises an optical processing unit 44, and at least one first view data that optical processing unit 44 produces with reference to the first automatic focusing module 2000, corresponding generation one statistical value data, and then statistical value data is supplied to the second processing module 2022, and judge whether autofocus lens L2 in the second automatic focusing module 2020 and autofocus motor M2 needs again to focus by the second processing module 2022, to produce the second view data and image output data.
Preferably, the statistical value data of the present embodiment comprises a dynamic vector (Motion Vector) data, a shape (Shape) data and face detecting (Face detect) data.For example, the image data format that first image acquisition module 200 can use specification to be 320X240, and the first processing module 2002 can use the first frame rate for 200fps(Frame per Second) image sensor, accordingly, first image acquisition module 200 can obtain dynamic vector data transfer to the second image acquisition module 202 more accurately, and is used for the anti-hand shake function of raising second image acquisition module 202.In hardware designs, in the present embodiment, the first processing module 2002 also can use monochromatic sensor (mono image sensor), because monochromatic sensor does not need the color filter disc device (color filter) additionally coupled, do not need to carry out color interpolation calculating yet, make the first image acquisition module 200 may correspond to the view data exporting acceptable contrast ratio, and then obtain the shape data of more clearly object.Operation as the first image acquisition module 200 also can arrange in pairs or groups one face detecting operation, to produce face's detecting data to the second image acquisition module 202 relative to object, and then alleviate the calculated load amount of the second processing module 2022, also can shorten the time needed for focus operation simultaneously.
Please refer to Fig. 5, Fig. 5 is the detailed maps of another auto-focusing image capturing device 50 of the embodiment of the present invention.As shown in Figure 5, the auto-focusing image capturing device 50 of Fig. 5 is similar with the auto-focusing image capturing device 20 of Fig. 2, wherein similar assembly will be continued to use identical label to be described, and auto-focusing image capturing device 50 and the difference of auto-focusing image capturing device 20 are, one second image acquisition module 502 also comprises a modular converter 54, and be coupled to the second automatic focusing module 2020 and the second processing module 2022, be used for the prompting image data (inclusion is apart from data and depth of field data) that reception first processing module 2002 produces, and utilize modular converter 54 to give tacit consent to one focusing Map Searching table, object distance data and the depth of field data of autofocus lens L1 and autofocus motor M1 will be applicable in prompting image data, be converted to the second automatic focusing module 2020 be suitable for one focusing supplemental characteristic, focus operation is re-started for the second automatic focusing module 2020 and the second processing module 2022.
Please refer to Fig. 6, Fig. 6 is the schematic diagram of a focusing Map Searching table 60 in the embodiment of the present invention, wherein, the focusing Map Searching table 60 that the present embodiment provides can be used for the auto-focusing image capturing device 20(shown in Fig. 2 and namely produces prompting image data by the first processing module 2002 and transfer to the second automatic focusing module 2020, judged whether to carry out focus operation again by the second automatic focusing module 2020 again, produce image data with correspondence).As shown in Figure 6, after first processing module 2002 completes its focus operation, desirable focusing step number (Focus Step) obtained corresponding to autofocus lens L1 is 44 microns, and can obtain relative to the object distance of object through a transformation curve C1 of autofocus lens L1 is 1 meter; Then, with reference to a transformation curve C2 of autofocus lens L2, to change focusing step number for autofocus lens L2 into 100 microns; Finally, then move by autofocus motor M2 the focus operation that autofocus lens L2 has carried out the second automatic focusing module 2020, and then output the second view data to the second processing module 2022 produces image data.
Please refer to Fig. 7, Fig. 7 is the schematic diagram of another focusing Map Searching table 70 in the embodiment of the present invention, wherein, the focusing Map Searching table 70 that the present embodiment provides can be used for the auto-focusing image capturing device 30(shown in Fig. 3 and namely produces prompting image data by the first processing module 2002 and transfer to the second processing module 2022, and directly judge whether the second automatic focusing module 2020 carries out focus operation again by the second processing module 2022, produce image data with correspondence).As shown in Figure 7, after first processing module 2002 completes its focus operation, the desirable focusing step number obtained corresponding to autofocus lens L1 is 44 microns, again by a transformation curve C1 of autofocus lens L1, can obtain relative to the object distance of object is 1 meter, simultaneously also by transformation curve C1 obtain the front depth of field be 0.8 meter then the depth of field be 1.5 meters; Then, referring again to the transformation curve C2 of autofocus lens L2, to change for the focusing step number before autofocus lens L2 corresponding to the depth of field into 65 microns, the focusing step number then corresponding to the depth of field is 118 microns; Finally, autofocus motor M2 is by the scope from focusing step number 65 microns to 118 microns, mobile autofocus lens L2 has carried out the focus operation of the second automatic focusing module 2020, exports the second view data to the second processing module 2022 to produce image data simultaneously.
Further, in the present embodiment auto-focusing image capturing device the image acquisition method that is suitable for, an image capture flow process 80 can be summarized as further, as shown in Figure 8.Image capture flow process 80 comprises following steps:
Step 800: start;
Step 802: the first image acquisition module, according to object, produces the prompting image data relative to object;
Step 804: the second image acquisition module, according to prompting image data, determines whether again focus, and the corresponding image data produced relative to object, and then export display module to;
Step 806: terminate.
The detailed operation of image capture flow process 80, illustrates by the relevant paragraph of auto-focusing image capturing device 10,20,30 and graphic acquisition, is not repeated herein.Preferably, step 804 also comprises and receives prompting image data (or after also can first being received by modular converter by the second automatic focusing module in the second image acquisition module or the second processing module, again the prompting image data after conversion is transferred to the second automatic focusing module or the second processing module), to judge that the second image acquisition module is the need of re-starting focus operation, and then by the second processing module image output data to display module.Certainly, those skilled in the art also can revise the present embodiment the range of application that is suitable for, display module can be shown simultaneously prompting image data that the first image acquisition module produces and the image data that the second image acquisition module produces, and then the edit operation of different digital image is provided or carries out pointing out the comparison operator between image data and image data simultaneously, also belong to category of the present invention.
In sum, embodiment provided by the present invention uses two image acquisition modules simultaneously, wherein one is auxiliary image acquisition module, and there is higher frame rate to obtain short advantage sample time, another one is main image acquisition module, and have lower frame rate to obtain the advantage of better picture element, accordingly, user can utilize also with reference to the focusing situation of auxiliary image acquisition module, the corresponding imaging operation determining main image acquisition module, to complete focus operation within the short period, the image data of better quality can be obtained again simultaneously, and then improve the range of application of auto-focusing image capturing device.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (20)
1. an auto-focusing image capturing device, is characterized in that, comprises:
One first image acquisition module, is used for according to an object, produces the prompting image data relative to this object; And
Whether one second image acquisition module, is used for according to this prompting image data, determine again focus and produce the image data relative to this object;
Wherein, this one first frame rate corresponding to the first image acquisition module is greater than this one second frame rate corresponding to the second image acquisition module, and this prompting image data comprises object distance data and a depth of field data.
2. auto-focusing image capturing device as claimed in claim 1, it is characterized in that, wherein this first image acquisition module comprises:
One first automatic focusing module, is used for, according to the position of this object, producing one first view data; And
One first processing module, is coupled to this first automatic focusing module, is used for, according to this first view data, producing this prompting image data.
3. auto-focusing image capturing device as claimed in claim 2, it is characterized in that, this first automatic focusing module comprises an autofocus lens and an autofocus motor, and this first processing module separately produces a feedback information to this autofocus motor, make the position of this this autofocus lens of autofocus motor correspondence adjustment, and then produce this first view data.
4. auto-focusing image capturing device as claimed in claim 3, it is characterized in that, this first processing module, separately according to this first view data, produces a statistical value data to this second image acquisition module.
5. auto-focusing image capturing device as claimed in claim 4, it is characterized in that, this statistical value data comprises dynamic vector data, a shape data and face's detecting data.
6. auto-focusing image capturing device as claimed in claim 1, it is characterized in that, this second image acquisition module comprises:
One second automatic focusing module, is used for according to this prompting image data, produces one second view data; And
One second processing module, is coupled to this second automatic focusing module, is used for, according to this second view data, producing this image data.
7. auto-focusing image capturing device as claimed in claim 6, it is characterized in that, this second automatic focusing module comprises an autofocus lens and an autofocus motor, and this second processing module separately produces a feedback information to this autofocus motor, make the position of this this autofocus lens of autofocus motor correspondence adjustment, and then produce this second view data.
8. auto-focusing image capturing device as claimed in claim 6, is characterized in that, this second processing module, separately according to this prompting image data, judges whether an autofocus motor focuses again and produces this second view data.
9. auto-focusing image capturing device as claimed in claim 6, it is characterized in that, this second processing module separately receives the statistical value data that this first image acquisition module produces, and judge this second automatic focusing module whether again focusing produce this second view data, and then produce this image data.
10. auto-focusing image capturing device as claimed in claim 6, it is characterized in that, this second image acquisition module separately comprises a modular converter, be used for receiving these object distance data and this depth of field data of this prompting image data, and utilize a focusing map lookup table of this modular converter, with produce this second automatic focusing module be suitable for one to focus supplemental characteristic.
11. 1 kinds of image acquisition methods for an auto-focusing image capturing device, this auto-focusing image capturing device comprises one first image acquisition module and one second image acquisition module, it is characterized in that, this image acquisition method being used for an auto-focusing image capturing device comprises:
According to an object, produce the prompting image data relative to this object by this first image acquisition module; And
According to this prompting image data, determine whether again focus and produce the image data relative to this object by this second image acquisition module;
Wherein, this one first frame rate corresponding to the first image acquisition module is greater than this one second frame rate corresponding to the second image acquisition module, and this prompting image data comprises object distance data and a depth of field data.
12. as claimed in claim 11 for the image acquisition method of an auto-focusing image capturing device, it is characterized in that, separately comprise and utilize one first automatic focusing module of this first image acquisition module and the position of this object, to produce one first view data; And utilize one first processing module and this first view data of this first image acquisition module, to produce this prompting image data.
13. as claimed in claim 12 for the image acquisition method of an auto-focusing image capturing device, it is characterized in that, separately comprise and utilize this first processing module to produce the autofocus motor of a feedback information to this first automatic focusing module, adjust the position of an autofocus lens of this first automatic focusing module with correspondence, and then produce this first view data.
14., as claimed in claim 13 for the image acquisition method of an auto-focusing image capturing device, is characterized in that, separately comprise and utilize this first processing module to process this first view data, to produce a statistical value data to this second image acquisition module.
15. as claimed in claim 14 for the image acquisition method of an auto-focusing image capturing device, and it is characterized in that, this statistical value data includes dynamic vector data, a shape data and face's detecting data.
16. as claimed in claim 11 for the image acquisition method of an auto-focusing image capturing device, it is characterized in that, separately comprise one second automatic focusing module and this prompting image data that utilize this second image acquisition module, to produce one second view data; And utilize one second processing module and this second view data of this second image acquisition module, to produce this image data.
17. as claimed in claim 16 for the image acquisition method of an auto-focusing image capturing device, it is characterized in that, separately comprise and utilize this second processing module to produce the autofocus motor of a feedback information to this second automatic focusing module, adjust the position of an autofocus lens of this second automatic focusing module with correspondence, and then produce this second view data.
18. as claimed in claim 16 for the image acquisition method of an auto-focusing image capturing device, it is characterized in that, separately comprise and utilize this second processing module to receive this prompting image data, produce this second view data to judge whether this autofocus motor focuses again.
19. as claimed in claim 16 for the image acquisition method of an auto-focusing image capturing device, it is characterized in that, separately comprise the statistical value data utilizing this second processing module to produce to receive this first image acquisition module, and judge this second automatic focusing module whether again focusing produce this second view data, and then produce this image data.
20. as claimed in claim 16 for the image acquisition method of an auto-focusing image capturing device, it is characterized in that, separately comprise and utilize a modular converter of this second image acquisition module to receive these object distance data and this depth of field data of this prompting image data, and utilize one of this modular converter focusing map lookup table to produce this second automatic focusing module be suitable for one to focus supplemental characteristic.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105827941A (en) * | 2015-09-24 | 2016-08-03 | 维沃移动通信有限公司 | Automatic focusing method and electronic device |
| CN107277348A (en) * | 2017-06-16 | 2017-10-20 | 广东欧珀移动通信有限公司 | Focusing method, device, computer-readable recording medium and mobile terminal |
| CN108028884A (en) * | 2015-09-25 | 2018-05-11 | 富士胶片株式会社 | Camera system and camera shooting control method |
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| US20130329120A1 (en) * | 2012-06-11 | 2013-12-12 | Canon Kabushiki Kaisha | Image processing apparatus, image processing method, image pickup apparatus, method of controlling image pickup apparatus, and non-transitory computer-readable storage medium |
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| CN101632296A (en) * | 2007-03-09 | 2010-01-20 | 伊斯曼柯达公司 | The multiple lens camera of improved focusing power is provided |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827941A (en) * | 2015-09-24 | 2016-08-03 | 维沃移动通信有限公司 | Automatic focusing method and electronic device |
| CN105827941B (en) * | 2015-09-24 | 2018-09-04 | 维沃移动通信有限公司 | A kind of method and electronic equipment of auto-focusing |
| CN108028884A (en) * | 2015-09-25 | 2018-05-11 | 富士胶片株式会社 | Camera system and camera shooting control method |
| US10572143B2 (en) | 2015-09-25 | 2020-02-25 | Fujifilm Corporation | Imaging system and imaging control method with pan/tilt control |
| CN108028884B (en) * | 2015-09-25 | 2020-05-12 | 富士胶片株式会社 | Image pickup system and image pickup control method |
| CN107277348A (en) * | 2017-06-16 | 2017-10-20 | 广东欧珀移动通信有限公司 | Focusing method, device, computer-readable recording medium and mobile terminal |
| WO2018228186A1 (en) * | 2017-06-16 | 2018-12-20 | Oppo广东移动通信有限公司 | Focusing method and apparatus, computer readable storage medium, and mobile terminal |
| CN107277348B (en) * | 2017-06-16 | 2019-08-16 | Oppo广东移动通信有限公司 | Focusing method, device, computer readable storage medium and mobile terminal |
| US11310409B2 (en) | 2017-06-16 | 2022-04-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Focusing method, device, and mobile terminal |
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