CN102843508B - image capturing method and image capturing system - Google Patents
image capturing method and image capturing system Download PDFInfo
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- CN102843508B CN102843508B CN201110206626.4A CN201110206626A CN102843508B CN 102843508 B CN102843508 B CN 102843508B CN 201110206626 A CN201110206626 A CN 201110206626A CN 102843508 B CN102843508 B CN 102843508B
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- 230000009471 action Effects 0.000 claims abstract description 62
- 238000010295 mobile communication Methods 0.000 description 5
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Abstract
An image capturing method and an image capturing system are provided. The image capturing method is suitable for a portable device, wherein the portable device is provided with a lens set, and the image capturing method comprises the following steps: sensing an image capturing action and an action time of the image capturing action. When the action time is more than or equal to a focusing scanning time of a focusing scanning performed by the lens group according to the image capturing action, a lens position determined by the focusing scanning is used as an image capturing lens position. When the action time is less than the focusing scanning time, a preset lens position is used as the image capturing lens position. An image capture is performed, wherein the lens assembly is located at the position of the image capture lens.
Description
Technical field
The present invention relates to a kind of method of operation and system of mancarried device, particularly relate to a kind of kenel of the image capture action according to user, determine image acquisition method and the system of the lens position of mancarried device.
Background technology
In the epoch of information explosion now, human lives be unable to do without telecommunications, it has been quite general that interpersonal often utilization electronic communication equipment transmits mutually message, especially the portable electron device can carried with, such as mobile phone or there is the electronic installation of wireless communication function.
In today that mobile communication technology is day by day flourishing, the function of device for mobile communication is still constantly weeded out the old and bring forth the new.Except the functions such as broadcast listening, there are many device for mobile communication more to develop at present and there is camera function, therefore when user wants to have a picture taken as a souvenir, the device for mobile communication with camera function can be utilized to take digitized video.But the quality of captured digitized video, except the quality of the camera lens be equipped with except device for mobile communication, the image capture technology of camera is very important especially.
In prior art, in image capture process, image acquisition system is after receiving image capture signal, can carry out a focusing scanning with for wish shooting entity, the set of lenses of moving lens, the entity that makes to be taken is positioned at the focal position of set of lenses, to obtain the pick-up image of definition the best.Namely, from receiving image capture signal really starts to shutter, there is one section because of the time drop of scanning of carrying out focusing, therefore when captured entity is transaction, the mobile moment of dynamically shooting entity cannot be caught accurately, thus lose the precious moment image of record.
Summary of the invention
The invention provides a kind of image acquisition method, can the image capture action of rapid response user.
The invention provides a kind of image acquisition system, according to the kenel of user's image capture action on a portable device, start image capture shutter fast, to shorten time difference when shutter startup produces with image capture action.
The present invention proposes a kind of image acquisition method, is applicable to a mancarried device, and wherein this mancarried device is configured with a set of lenses, and this image acquisition method comprises: the operate time responding to an image capture action and this image capture action.Focus sweep time when this operate time is more than or equal to one of the focusing scanning that this set of lenses is carried out according to this image capture action, then scanning with this focusing the lens position determined is an image capture lens position.Be less than this focusing sweep time when this operate time, then presetting lens position with one is this image capture lens position.Carry out an image capture, wherein set of lenses is positioned at this image capture lens position.
In one embodiment of this invention, above-mentioned image acquisition method, wherein this default lens position corresponds to a focal position, and this focal position is about 100 ~ 200 centimeters.
In one embodiment of this invention, above-mentioned image acquisition method, also comprises: this image capture lens position of record this image capture each.Add up these image capture lens positions to obtain a usual lens position.Be this default lens position with this usual lens position.
In one embodiment of this invention, above-mentioned image acquisition method, also comprises: according to this image capture action, carries out this focusing scanning.
The present invention provides again a kind of image acquisition system, is applicable to a mancarried device, and wherein this portable assembling is equipped with a set of lenses.This image acquisition system comprises: an action sensing module, a lens position setting module, a lens actuator and an image acquisition unit.Action sensing module responds to an operate time of an image capture action and this image capture action.Lens position setting module, wherein focus sweep time when this operate time is more than or equal to one of the focusing scanning that this set of lenses is carried out according to this image capture action, then scanning with this focusing the lens position determined is an image capture lens position, and be less than this focusing sweep time when this operate time, then presetting lens position with one is this image capture lens position.Lens actuator drives this set of lenses to this image capture lens position.Image acquisition unit, carries out an image capture.
In one embodiment of this invention, above-mentioned image acquisition system, wherein this lens actuator drives this set of lenses to carry out this focusing scanning.
In one embodiment of this invention, above-mentioned image acquisition system, wherein this default lens position corresponds to a focal position, and this focal position is about 100 ~ 200 centimeters.
In one embodiment of this invention, above-mentioned image acquisition system, also comprises: a logging modle and a statistical module.This image capture lens position of logging modle record this image capture each.These image capture lens positions of statistical module counts to obtain a usual lens position, and provide this usual lens position to this lens position setting module as this default lens position.
Based on above-mentioned, in the present invention, when user produces an image capture action on mancarried device, mancarried device produces the pattern (that is operate time length) of image capture action according to user, the lens position of automatic setting set of lenses is default lens position, or the optimal lens position (that is image capture lens position) corresponding to best focus position determined according to focusing scanning result.Namely, when the image capture action that the urgency pressure shutter of user produces, the set of lenses can touching mancarried device directly enters to move the image capture of transaction with default lens position, need not expend time in and wait for focusing scanning, mancarried device can the image capture action of fast reaction user, shortens shutter and starts time difference when producing with image capture action.
For making above-mentioned feature and advantage of the present invention become apparent, special embodiment below, and be described with reference to the accompanying drawings as follows.
Accompanying drawing explanation
Fig. 1 is the simplified schematic diagram of a kind of image acquisition system according to one embodiment of the invention.
Fig. 2 is the general flow chart of a kind of image acquisition method according to one embodiment of the invention.
Reference numeral explanation
100: mancarried device
102: set of lenses
104: action sensing module
106: lens position setting module
108: lens actuator
110: image acquisition unit
S201 ~ S221: method flow step
Embodiment
Fig. 1 is the simplified schematic diagram of a kind of image acquisition system according to one embodiment of the invention.Please refer to Fig. 1, the image acquisition system of the present embodiment, be applicable to a mancarried device 100 (please refer to Fig. 2).Wherein mancarried device 100 is such as personal digital assistant (personal digital assistant, PDA), PDA mobile phone, intelligent mobile phone or touch controlled handset.In addition, mancarried device 100 is configured with a set of lenses 102.
This image acquisition system comprises action sensing module 104, lens position setting module 106, lens actuator 108 and image acquisition unit 110.
Action sensing module 104 responds to an operate time of an image capture action and image capture action.Namely when user produces an image capture action on mancarried device 100, when comprising the physical button representing pick-up image with finger presses or the virtual key being shown on Touch Screen, produce an image capture action, and action sensing module 104 responds to this image capture action and its operate time.More particularly, this operate time be such as image capture action from during the action that completes to action.
The operate time that lens position setting module 106 is responded to according to action sensing module 104, determine the lens position (lens position) to the set of lenses 102 that captured entity is focused.Moreover lens actuator 108 drives set of lenses 102 to image capture lens position.And image acquisition unit 110, carry out an image capture.
Namely, when being more than or equal to focusing sweep time of the focusing scanning that set of lenses 102 carries out according to image capture action, then the lens position that determines with scanning of focus of lens position setting module 106 is for image capture lens position operate time.On the other hand, when operate time be less than focusing sweep time time, then with default lens position for image capture lens position.
More particularly, when user produces image capture action on mancarried device 100, then touch lens actuator 108 for institute for shooting entity carry out focusing scan.Generally speaking, in focusing scanning process, set of lenses 102 moves forward and backward along optic axis via lens actuator 108, until the image of shooting entity is in image capture element (image-capturing element, such as charge coupled cell, charge-coupled device (CCD)) frequency of image capture signal that produces of upper imaging maximum time, now the position of set of lenses is then in optimal lens position, takes the focal position that entity is then positioned at this set of lenses.That is when adjustment lens group position, when making shooting entity be positioned at the focal position of set of lenses, the image of the shooting entity captured is then the most clear.But, drive set of lenses 102 to find optimal lens position along optic axis is movable via lens actuator 108, then need to expend focusing sweep time.
Therefore, when user produces image capture action on mancarried device 100, when being greater than the focusing sweep time needed for set of lenses 102 its operate time, then lens position setting module 106 is after completing focusing scanning, and the lens position (that is corresponding to the optimal lens position of best focus position) scanning determine to focus is as image capture lens position.
But, when user suddenly presses physical button mancarried device 100 representing pick-up image or the virtual key be shown on Touch Screen, when causing the focusing sweep time be less than operate time needed for set of lenses 102, then lens position setting module 106 immediately with default lens position for image capture lens position.In an embodiment, this focal position corresponding to default lens position is such as 100 ~ 200 centimeters.In another embodiment, this default lens position is such as the usual lens position of user.
More particularly, image acquisition system, also comprises a logging modle (not illustrating) and a statistical module (not illustrating).The each user of logging modle record uses the image capture lens position of the nearly row image capture of mancarried device 100.And the usual lens position that the image capture lens position that statistical module counts records is commonly used to obtain user, and provide this usual lens position to lens position setting module 106 as default lens position.Namely different users, when taking different entities, the inertia that usual a guy uses, entity of such as liking being taken is panorama or half body in pick-up image, even just head portrait.Lens position during each image capture by statistics user, acquisition inertia falls in the shadow that can calculate user, and then can estimate out and be most suitable for the lens position of user when carrying out image capture, and with this lens position for presetting lens position.
Therefore, when the operate time of the image capture action that user produces on mancarried device 100 be less than focusing sweep time time, even if shooting entity is not the focusing position of position corresponding to default lens position, due to the usual lens position that default lens position is user, therefore the probability raising that entity is positioned at the field depth of focal position is taken, so the image definition captured is then within the scope of a tolerable.Thus, without the need to wait consuming time focusing scanning, image acquisition system of the present invention can the image capture action of fast reaction user, significantly shorten image capture action and shutter start between time difference.
Fig. 2 is the general flow chart of a kind of image acquisition method according to one embodiment of the invention.Please refer to Fig. 2, the image acquisition method of this example is for mancarried device (mancarried device 100 as Fig. 1), and mancarried device is configured with a set of lenses (set of lenses 102 as Fig. 1).In step S201, an operate time of induction image capture action and image capture action.Afterwards, in step S205, comparison operate time with carry out focusing the focusing sweep time needed for scanning.
When being more than or equal to focusing sweep time of the focusing scanning that set of lenses carries out according to image capture action, then the lens position determined with scanning of focus is for image capture lens position (step S211) operate time.
When this operate time be less than focusing sweep time, then with default lens position for image capture lens position (step S215).Then, carry out an image capture, wherein set of lenses is positioned at this image capture lens position (step S221).
It should be noted that after the action of induction image capture, also comprise according to responded to image capture action, carry out focusing scanning.In addition, aforementioned default lens position is such as the image capture lens position via recording when each user carries out image capture.The image capture lens position that statistics records to obtain the usual lens position of user, and is preset lens position with this usual lens position.
In the aforementioned embodiment had about image acquisition system, kenel (namely the length of operate time) according to user's image capture action produced on a portable device has been described in detail in detail, the concept of the lens position (focal position in other words during image capture) during decision image capture, therefore in the present embodiment, no longer this repeats.In addition, image acquisition system of the present invention specifically can be carried out via execution one computer readable program.And this computer readable program can be stored in computer-readable writes in Storage Media (not illustrating), and perform the instruction of this computer readable program specifically to carry out image acquisition system of the present invention and image acquisition method by the processor of mancarried device.
In the present invention, when user produces an image capture action on mancarried device, mancarried device produces the pattern (that is operate time length) of image capture action according to user, the lens position of automatic setting set of lenses is default lens position, or the optimal lens position (that is image capture lens position) corresponding to best focus position determined according to focusing scanning result.Due to default lens position be with general popular when filmed image the lens position commonly use for mancarried device preset value, or to analyze the customized lens position of user's usual lens position record decision.Thus, when user is eager the image capturing transaction, the image capture action that produces of urgency pressure shutter of user, the set of lenses can touching mancarried device directly enters to move the image capture of transaction with default lens position, and the focal position preset corresponding to lens position is the focal position that user commonly uses, the probability causing the entity that is taken to be positioned at the field depth of focal position improves, and therefore captured image definition is then within the scope of a tolerable.So need not expend time in and wait for focusing scanning, mancarried device can the image capture action of fast reaction user, shorten shutter and start time difference when producing with image capture action.
Although the present invention discloses as above with embodiment; so itself and be not used to limit the present invention, those skilled in the art, under the premise without departing from the spirit and scope of the present invention; can do some changes and retouching, therefore protection scope of the present invention is as the criterion with claim of the present invention.
Claims (6)
1. an image acquisition method, is applicable to a mancarried device, and wherein this mancarried device is configured with a set of lenses, and this image acquisition method comprises:
Respond to an operate time of an image capture action and this image capture action;
Be more than or equal to focal length sweep time of the focusing scanning that this set of lenses carries out according to this image capture action when this operate time, then scanning with this focusing the lens position determined is an image capture lens position;
Be less than this focal length sweep time when this operate time, then presetting lens position with one is this image capture lens position;
Carry out an image capture, wherein set of lenses is positioned at this image capture lens position;
This image capture lens position of record this image capture each;
Add up these image capture lens positions to obtain a usual lens position; And
Be this default lens position with this usual lens position.
2. image acquisition method as claimed in claim 1, wherein this default lens position corresponds to a focal position, and this focal position is about 100 ~ 200 centimeters.
3. image acquisition method as claimed in claim 1, also comprises: according to this image capture action, carries out this focusing scanning.
4. an image acquisition system, is applicable to a mancarried device, and wherein this portable assembling is equipped with a set of lenses, and this image acquisition system comprises:
One action sensing module, responds to an operate time of an image capture action and this image capture action;
One lens position setting module, wherein focus sweep time when this operate time is more than or equal to one of the focusing scanning that this set of lenses is carried out according to this image capture action, then scanning with this focusing the lens position determined is an image capture lens position, and be less than this focusing sweep time when this operate time, then presetting lens position with one is this image capture lens position;
One lens actuator, drives this set of lenses to this image capture lens position;
One image acquisition unit, carries out an image capture;
One logging modle, this image capture lens position of record this image capture each; And
One statistical module, adds up these image capture lens positions to obtain a usual lens position, and provides this usual lens position to this lens position setting module as this default lens position.
5. image acquisition system as claimed in claim 4, wherein this lens actuator drives this set of lenses to carry out this focusing scanning.
6. image acquisition system as claimed in claim 4, wherein this default lens position corresponds to a focal position, and this focal position is about 100 ~ 200 centimeters.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100121816 | 2011-06-22 | ||
| TW100121816A TWI474097B (en) | 2011-06-22 | 2011-06-22 | Image capture method and image capture system |
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| Publication Number | Publication Date |
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| CN102843508A CN102843508A (en) | 2012-12-26 |
| CN102843508B true CN102843508B (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110206626.4A Expired - Fee Related CN102843508B (en) | 2011-06-22 | 2011-07-22 | image capturing method and image capturing system |
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| CN (1) | CN102843508B (en) |
| TW (1) | TWI474097B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9344626B2 (en) | 2013-11-18 | 2016-05-17 | Apple Inc. | Modeless video and still frame capture using interleaved frames of video and still resolutions |
| CN105721777B (en) | 2016-03-15 | 2020-04-17 | 惠州Tcl移动通信有限公司 | Shooting device and method for realizing accurate focusing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1635418A (en) * | 2003-12-29 | 2005-07-06 | 明基电通股份有限公司 | Image acquisition device with proximity induction function |
| CN1833432A (en) * | 2003-08-04 | 2006-09-13 | 卡西欧计算机株式会社 | Image sensing apparatus, image sensing method, and recording medium which records photographing method |
| CN101213832A (en) * | 2005-06-29 | 2008-07-02 | 佳能株式会社 | Focus control method and unit |
| CN101571660A (en) * | 2008-04-28 | 2009-11-04 | 鸿富锦精密工业（深圳）有限公司 | Digital camera and automatic focusing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11261879A (en) * | 1998-03-12 | 1999-09-24 | Nikon Corp | Electronic camera having consecutive photographing function |
| JP4243810B2 (en) * | 2006-09-05 | 2009-03-25 | ソニー株式会社 | Camera shake correction mechanism and imaging apparatus |
| TW200843453A (en) * | 2007-04-24 | 2008-11-01 | Kuo-Ching Chiang | Portable device and method of the same |
| TWI454135B (en) * | 2009-04-24 | 2014-09-21 | Htc Corp | Image capturing device and image capturing method thereof |
-
2011
- 2011-06-22 TW TW100121816A patent/TWI474097B/en not_active IP Right Cessation
- 2011-07-22 CN CN201110206626.4A patent/CN102843508B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1833432A (en) * | 2003-08-04 | 2006-09-13 | 卡西欧计算机株式会社 | Image sensing apparatus, image sensing method, and recording medium which records photographing method |
| CN1635418A (en) * | 2003-12-29 | 2005-07-06 | 明基电通股份有限公司 | Image acquisition device with proximity induction function |
| CN101213832A (en) * | 2005-06-29 | 2008-07-02 | 佳能株式会社 | Focus control method and unit |
| CN101571660A (en) * | 2008-04-28 | 2009-11-04 | 鸿富锦精密工业（深圳）有限公司 | Digital camera and automatic focusing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI474097B (en) | 2015-02-21 |
| CN102843508A (en) | 2012-12-26 |
| TW201300929A (en) | 2013-01-01 |
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