CN102088550A - Method and system for capturing object images and digital imaging device - Google Patents
Method and system for capturing object images and digital imaging device Download PDFInfo
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- CN102088550A CN102088550A CN2009102538111A CN200910253811A CN102088550A CN 102088550 A CN102088550 A CN 102088550A CN 2009102538111 A CN2009102538111 A CN 2009102538111A CN 200910253811 A CN200910253811 A CN 200910253811A CN 102088550 A CN102088550 A CN 102088550A
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Abstract
The invention relates to a method and system for capturing object images and a digital imaging device. The image capturing method is applied to a digital imaging device which is set in an environment of a first shooting parameter group and used for shooting an object so as to obtain a digital image with a preset imaging size. The method comprises the following steps: detecting the object to obtain a first object imaging size of the object; changing the first shooting parameter group into a second shooting parameter group in accordance with the first object imaging size and the preset imaging size, so that the first object imaging size of the object is accordingly changed into a second object imaging size in an environment of the second shooting parameter group, wherein the second object imaging size approximates to the preset imaging size; using the digital imaging device set in the second shooting parameter group to shoot the object to obtain an initial image; and clipping the initial image directly to obtain the digital image.
Description
Technical field
The present invention relates to a kind of image shooting method, system and digital imaging device, particularly relate to a kind of object image acquisition method, system and digital imaging device.
Background technology
In the epoch of information explosion now, the human lives has be unable to do without electronic product, and digital photographic device have can take in real time, functions such as video recording, preview shooting result, more obtain consumer's favor and have high achievement of sale.Yet, when need capturing required portrait from captured image, the user exchanges website or intercommunion platform as various community, when for example representing the major part photograph of individual vivid feature in microgrid will or the logical in real time software, often need moving-coil on the offensive to select the housing of people, biology or object in the image, the part image of choosing that cutting is afterwards enclosed, part image for institute's cutting carries out image processing again, so that the desired size of uploading of image size compliance with system supplier of institute's cutting.
Fig. 1 is the schematic diagram of existing a kind of image acquisition method.After taking a personage 102, produce a filmed image 104 with digital imaging device 100.When the user to cut in the filmed image 104 the part image as major part according to the time, the user must manually enclose and select part image housing 106 required in the filmed image 104.With the image resolution of filmed image 104 is 1024 * 768 to be example, and the size of then enclosing the part image of electing in the housing 106 is about 300 * 400 squares of pixels.Yet, upload when the desired portrait of the supplier of system and to be of a size of 600 * 800 or when bigger, the portrait 108 that the user often needs institute's cutting is obtained carries out further image amplification or the image processing step of dwindling, therefore can make resolution variation, and cause the fuzzy even whole personage's warpage of character contour in the portrait, be colour distortion through the portrait 110 after the image processing step.
Summary of the invention
The invention provides a kind of image acquisition method, can directly capture the object image and need not do image processing to captured image once more.
The invention provides a kind of digital imaging device, can adjust the object image of acquisition parameters group automatically with the acquisition specific dimensions.
The invention provides a kind of image acquisition system, can do portrait pattern photography to object, and need not to adjust the object image size afterwards and sacrifice the object image resolution according to a specific dimensions.
The present invention proposes a kind of image acquisition method, is applicable to a digital imaging device to take the digitized video that an object has a default image size with one-tenth, and wherein this digital imaging device is in the situation that is set in one first shooting parameter group.This method comprises: carry out an object and detect, to obtain the one first object image size of this object under the situation of this first shooting parameter group of this digital imaging device.Afterwards, according to the default image size of this first object image size and this, this the first shooting parameter group that changes this digital imaging device is one second shooting parameter group, so that this of this object first object image size makes this second one second object image size of taking under the parameter group situation into thereupon, wherein this second object image size is approximate should default image size.In addition, take this object with this digital imaging device that is set in this second shooting parameter group and become an initial image.Then, according to this default image size, directly this initial image of cutting becomes this digitized video.Then, store this digitized video.
In one embodiment of this invention, above-mentioned image acquisition method, wherein this first shooting parameter group comprises a shooting focal length and a resolution of this digital imaging device.In addition, changing this first takes parameter group and comprises that for this second step of taking parameter group this shooting focal length of changing this digital imaging device simultaneously and this resolution are to become this second shooting parameter group.In addition, change this first shooting parameter group and be included under the situation of this shooting focal length of fixing this digital imaging device, change this resolution of this digital imaging device for this second step of taking parameter group.In addition, change this first shooting parameter group and be included under the situation of this resolution of fixing this digital imaging device, change this shooting focal length of this digital imaging device for this second step of taking parameter group.
In one embodiment of this invention, above-mentioned image acquisition method, wherein this object comprises people, biology or object.
The present invention also proposes a kind of digital imaging device, is applicable to take the digitized video that an object has a default image size with one-tenth, and wherein this digital imaging device is in the situation that is set in one first shooting parameter group.And this digital imaging device comprises: a Storage Media and a processor.Storage Media is in order to store an image processing program.Then in order to carry out this image processing program, wherein this image processing program comprises a plurality of instructions to processor.Those instructions comprise: carry out an object and detect, to obtain the one first object image size of this object under the situation of this first shooting parameter group of this digital imaging device.According to the default image size of this first object image size and this, this the first shooting parameter group that changes this digital imaging device is one second shooting parameter group, so that this of this object first object image size makes this second one second object image size of taking under the parameter group situation into thereupon, wherein this second object image size is approximate should default image size.Take this object with this digital imaging device that is set in this second shooting parameter group and become an initial image.According to this default image size, directly this initial image of cutting becomes this digitized video.Store this digitized video to this Storage Media.
In one embodiment of this invention, above-mentioned digital imaging device, wherein this first shooting parameter group comprises a shooting focal length and a resolution of this digital imaging device.In addition, changing this first takes parameter group and comprises that for this second instruction of taking parameter group this shooting focal length of changing this digital imaging device simultaneously and this resolution are to become this second shooting parameter group.In addition, change this first shooting parameter group and be included under the situation of this shooting focal length of fixing this digital imaging device, change this resolution of this digital imaging device for this second instruction of taking parameter group.In addition, change this first shooting parameter group and be included under the situation of this resolution of fixing this digital imaging device, change this shooting focal length of this digital imaging device for this second instruction of taking parameter group.
In one embodiment of this invention, above-mentioned digital imaging device, wherein this object comprises people, biology or object.
The present invention proposes a kind of image acquisition system again, is applicable to a digital imaging device to take the digitized video that an object has a default image size with one-tenth, and wherein this digital imaging device is in the situation that is set in one first shooting parameter group.This system comprises: an object detection module, a parameter modification module, a filming apparatus, an image cutting module and a Storage Media.Wherein, the object detection module obtains the one first object image size of this object under the situation of this first shooting parameter group of this digital imaging device in order to detect this object.The parameter modification module is then in order to preset image size according to this first object image size and this, this the first shooting parameter group that changes this digital imaging device is one second shooting parameter group, so that this of this object first object image size makes this second one second object image size of taking under the parameter group situation into thereupon, wherein this second object image size is approximate should default image size.Filming apparatus is then taken this object with this digital imaging device that is set in this second shooting parameter group and is become an initial image.Image cutting module, then according to presetting image size, directly this initial image of cutting becomes this digitized video.This digitized video of storing media stores.
In one embodiment of this invention, above-mentioned image acquisition system, wherein this first shooting parameter group comprises a shooting focal length and a resolution of this digital imaging device.In addition, this parameter modification module changes this and first takes parameter group and second take parameter group and comprise that this shooting focal length of changing this digital imaging device simultaneously and this resolution are to become this second shooting parameter group for this.In addition, this parameter modification module changes this first shooting parameter group and is included under the situation of this shooting focal length of fixing this digital imaging device for this second shooting parameter group, changes this resolution of this digital imaging device.In addition, this parameter modification module changes this first shooting parameter group and is included under the situation of this resolution of fixing this digital imaging device for this second shooting parameter group, changes this shooting focal length of this digital imaging device.
In one embodiment of this invention, above-mentioned image acquisition system, wherein this object comprises people, biology or object.
Among the present invention by before object is taken, detect the object image size of object, and according to detected object image size of comparison and default image size, change the acquisition parameters group of digital imaging device, so that the object image size in the initial image of object after taking near in addition equal default image size, at the captured initial image of the direct cutting of process, can capture digitized video approaching with default image size or even that equate, and need not do the amplification of image for this digitized video in addition or image processing such as dwindle coincideing default image size, so digitized video can not amplify or dwindles the problem of handling the back and producing the resolution variation because of not carrying out image.In addition, can improve all object image capture results' dimensional homogeneity.In addition, the digitized video that only stores after the cutting can reduce the storage area that stores the shared Storage Media of object image.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 is the schematic diagram of existing a kind of image acquisition method.
Fig. 2 is the schematic diagram according to a kind of image acquisition system of one embodiment of the invention.
Fig. 3 is the general flow chart according to a kind of image acquisition method of one embodiment of the invention.
Fig. 4 is the schematic diagram that changes with the change of acquisition parameters group according to object image size in a kind of image acquisition method of one embodiment of the invention.
The reference numeral explanation
100,400: digital imaging device
102: the personage
104: filmed image
106,406: housing
108,110: portrait
200: image acquisition system
202: the object detection module
204: the parameter modification module
206: filming apparatus
208: image cutting module
210: Storage Media
S305～S325: method flow step
402: object
404: preview screen
408: initial image
410: digitized video
Embodiment
Fig. 2 is the schematic diagram according to a kind of image acquisition system of one embodiment of the invention.Please refer to Fig. 2, image acquisition system 200 of the present invention comprises at least: an object detection module 202, a parameter modification module 204, a filming apparatus 206, an image cutting module 208 and a Storage Media 210.Fig. 3 is the general flow chart according to a kind of image acquisition method of one embodiment of the invention.Fig. 4 is the schematic diagram that changes with the change of acquisition parameters group according to object image size in a kind of image acquisition method of one embodiment of the invention.Please refer to Fig. 2, Fig. 3 and Fig. 4, image acquisition system of the present invention and method are applicable to a digital imaging device 400 and take an object 402 has a default image size with one-tenth a digitized video.This digital imaging device 400 for example is digital camera, is equipped with the portable apparatus of digital filming function, comprises mobile phone, intelligent mobile phone, personal digital assistant etc.And above-mentioned object 402 comprises people, biology or object.In addition, above-mentioned default image size for example be digital imaging device a portrait screening-mode several default values one of them, also can the person of being to use when using the portrait screening-mode of digital imaging device, a default image size that sets up on their own.In addition, above-mentioned digital imaging device 400 is in the situation that is set in one first shooting parameter group.This first shooting parameter group for example is the acquisition parameters of the systemic presupposition of device for image 400, or the user is according to the acquisition parameters of personal like's setting.In addition, the first above-mentioned shooting parameter group comprises a shooting focal length and a resolution at least.
Please refer to Fig. 2, Fig. 3 and Fig. 4, in step S305, carry out an object with object detection module 202 and detect, to obtain the one first object image size of object 402 under the situation that is set in the first shooting parameter group of digital imaging device.In an embodiment, when the resolution setting in the first shooting parameter group of digital imaging device is 780,000 pixels (that is 1024 * 768), then can be in object 402 existing preview screen 404 via object detection module 202, detect object 402, and depict a housing 406 of object 402.Above-mentioned object detection module 202 for example is a human face recognition module, can be in preview screen 404, by face characteristic identification object position, and and then in preview screen with the personage of institute's identification, object or biologically go out with a housing 406 frames.Via at that time with reference to the detection object, the resolution setting of the first shooting parameter group that digital imaging device 400 has been set, the image size of calculating this housing 406 is the first object image size.In this embodiment, when first of digital imaging device is taken resolution setting in the parameter group when being 780,000 pixels (that is 1024 * 768), object that object detection module 202 the detects 402 and first object image size of acquisition is 300 * 400.
Afterwards, in step S310, parameter modification module 204 is according to the first object image size and default image size, the first shooting parameter group that changes digital imaging device is one second shooting parameter group, so that the first object image size of object makes the second second object image size of taking under the parameter group situation into thereupon.Be 600 * 800 when presetting image size just, and the first object image size is 300 * 400 o'clock, it is the second shooting parameter group that first of change digital imaging device is taken parameter group.Just change first of digital imaging device simultaneously and take shooting focal length and resolution in the parameter group to become the second shooting parameter group.Or be under the situation of the shooting focal length of stationary digital device for image, to change the resolution of digital imaging device separately.In addition or, under the situation of the resolution of stationary digital device for image, only change the shooting focal length of digital imaging device.
More particularly, please refer to Fig. 4, in this embodiment, when default image size is 600 * 800, and be 1024 * 768 in the shooting resolution setting of digital imaging device 400, the first object image size that object detects the object 402 that is obtained is 300 * 400 o'clock, be the default image size of the size conforms that makes the object image that is captured at last, under the situation of the shooting focal length of stationary digital device for image 400, can change the resolution of digital imaging device 400 separately, bring up to 2048 * 1536 by 1024 * 768.Therefore object 402 digital imaging device 400 be set in resolution be object image size under 2048 * 1536 the situation then by the first object image size 300 * 400 originally, rise to the second object image size 600 * 800.Thus, the more approaching default object image size of the second object image size (600 * 800) of object 402.
In this embodiment, be with the establishing shot focal length, only adjust the resolution of digital imaging device automatically, adjust the object image size so that near default image size.But the present invention is not limited to this.Just before the shooting object becomes an image, adjusting the object image size also can be by adjusting shooting focal length and resolution simultaneously automatically with the method near default image size, or fixed resolution, adjust automatically shooting focal length reach adjust the object image size so that the purpose near default image size.
Then, in step S315, filming apparatus 206 receives one and takes signal, takes 402 one-tenth one initial images 408 of object to be set in second digital imaging device 400 of taking parameter group.Then, in step S320, image cutting module 208 is according to default image size (as above-mentioned embodiment gave an example 600 * 800), the directly digitized video 410 of 408 one-tenth objects of the initial image of cutting 402.Continue it, store this digitized video 410 to Storage Media 210.
In the foregoing description, image acquisition method of the present invention can specifically be carried out via carrying out one computer-readable medium/image processing program, and image acquisition system also can aforementioned calculation machine readable medium/image processing program present.And this computer-readable medium/image processing program can be stored on a kind of computer erasable recording medium/Storage Media, and this computer-readable medium/image processing program carries out several instructions, with concrete implementation image acquisition method of the present invention.Therefore performed image acquisition method step is not done at this and is given unnecessary details to describe in detail in the foregoing description.In addition, image acquisition method of the present invention can also specifically present with a digital imaging device.This digital imaging device comprises a Storage Media and a processor.This Storage Media is in order to store aforementioned calculation machine readable medium/image processing program.Processor then is used to carry out aforementioned calculation machine readable medium/image processing program with concrete implementation image acquisition method of the present invention.The performed image acquisition method step of above-mentioned processor is described in detail in the foregoing description, does not therefore do at this and gives unnecessary details.
In sum, among the present invention by before object is taken, detect the object image size of object, and according to detected object image size of comparison and default image size, change the acquisition parameters group of digital imaging device, so that the object image size in the initial image of object after taking near in addition equal default image size, at the captured initial image of the direct cutting of process, can capture digitized video approaching with default image size or even that equate, and need not do the amplification of image for this digitized video in addition or image processing such as dwindle coincideing default image size, so digitized video can not amplify or dwindles the problem of handling the back and producing the resolution variation because of not carrying out image.In addition, compared to having now by manually selecting required image from the filmed image centre circle voluntarily, amplifying or dwindle and cause the object image in the last digitized video through image processing more is not the inhomogeneous or problem of digitized video resolution rate variance of size, in the present invention, can detect the object image size of object by image acquisition system of the present invention automatically, automatically adjust the acquisition parameters group, automatically reduce initial image become have near in addition equal the digitized video of default image size, the user is only by the portrait screening-mode of choosing digital imaging device, can use image capture mode of the present invention and system, directly take object to obtain even identical digitized video approaching with default image size, and need not to sacrifice the resolution of digitized video, more improve the object image size uniformity of all portrait shooting results.In addition, directly the file size of the digitized video after the cutting is less than the file size of initial image, therefore only stores the storage area that digitized video after the cutting can reduce shared Storage Media.
Though the present invention discloses as above with embodiment; right its is not in order to limit the present invention; those skilled in the art can do some changes and retouching under the premise without departing from the spirit and scope of the present invention, so protection scope of the present invention is to be as the criterion with claim of the present invention.
Claims (10)
1. an image acquisition method is applicable to a digital imaging device and takes the digitized video that an object has a default image size with one-tenth, and wherein this digital imaging device is in the situation that is set in one first shooting parameter group, and this method comprises:
Carry out an object and detect, to obtain the one first object image size of this object under the situation of this first resolution of this digital imaging device;
According to the default image size of this first object image size and this, this the first shooting parameter group that changes this digital imaging device is one second shooting parameter group, so that this of this object first object image size makes this second one second object image size of taking under the parameter group situation into thereupon, wherein this second object image size is approximate should preset image size; And
Take this object with this second shooting parameter group and become an initial image.
2. image acquisition method as claimed in claim 1 wherein comprises, and according to this default image size, directly this initial image of cutting becomes this digitized video.
3. image acquisition method as claimed in claim 1 wherein comprises, and stores this digitized video.
4. image acquisition method as claimed in claim 1, wherein this first shooting parameter group comprises a shooting focal length and a resolution of this digital imaging device.
5. image acquisition method as claimed in claim 4 wherein changes this and first takes parameter group and comprise that for this second step of taking parameter group this shooting focal length of changing this digital imaging device simultaneously and this resolution are to become this second shooting parameter group.
6. image acquisition method as claimed in claim 4 wherein changes this first shooting parameter group and is included under the situation of this shooting focal length of fixing this digital imaging device for this second step of taking parameter group, changes this resolution of this digital imaging device.
7. image acquisition method as claimed in claim 4 wherein changes this first shooting parameter group and is included under the situation of this resolution of fixing this digital imaging device for this second step of taking parameter group, changes this shooting focal length of this digital imaging device.
8. a digital imaging device is applicable to and takes the digitized video that an object has a default image size with one-tenth, and wherein this digital imaging device is in the situation that is set in one first shooting parameter group, and this digital imaging device comprises:
One Storage Media is to store an image processing program;
One processor, in order to carry out this image processing program, wherein this image processing program comprises a plurality of instructions, those instructions comprise:
Carry out an object and detect, to obtain the one first object image size of this object under the situation of this first shooting parameter group of this digital imaging device;
According to the default image size of this first object image size and this, this the first shooting parameter group that changes this digital imaging device is one second shooting parameter group, so that this of this object first object image size makes this second one second object image size of taking under the parameter group situation into thereupon, wherein this second object image size is approximate should preset image size; And
Take this object with this second shooting parameter group and become an initial image.
9. digital imaging device as claimed in claim 8, wherein this first shooting parameter group comprises a shooting focal length and a resolution of this digital imaging device.
10. digital imaging device as claimed in claim 8, wherein this object comprises people, biology or object.
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| CN2009102538111A CN102088550A (en) | 2009-12-08 | 2009-12-08 | Method and system for capturing object images and digital imaging device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393853A (en) * | 2011-07-28 | 2012-03-28 | 青岛海信移动通信技术股份有限公司 | Management method and device for address list pictures |
| CN104702846A (en) * | 2015-03-20 | 2015-06-10 | 惠州Tcl移动通信有限公司 | Preview image processing method and system of MT (Mobile Terminal) camera |
| CN105809618A (en) * | 2014-12-31 | 2016-07-27 | 华为终端（东莞）有限公司 | Picture processing method and device |
| CN106549903A (en) * | 2015-09-16 | 2017-03-29 | 腾讯科技（深圳）有限公司 | A kind of method and apparatus that user's head portrait is set |
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2009
- 2009-12-08 CN CN2009102538111A patent/CN102088550A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393853A (en) * | 2011-07-28 | 2012-03-28 | 青岛海信移动通信技术股份有限公司 | Management method and device for address list pictures |
| CN105809618A (en) * | 2014-12-31 | 2016-07-27 | 华为终端（东莞）有限公司 | Picture processing method and device |
| US10373361B2 (en) | 2014-12-31 | 2019-08-06 | Huawei Technologies Co., Ltd. | Picture processing method and apparatus |
| CN104702846A (en) * | 2015-03-20 | 2015-06-10 | 惠州Tcl移动通信有限公司 | Preview image processing method and system of MT (Mobile Terminal) camera |
| CN104702846B (en) * | 2015-03-20 | 2018-05-08 | 惠州Tcl移动通信有限公司 | Mobile terminal camera preview image processing method and system |
| CN106549903A (en) * | 2015-09-16 | 2017-03-29 | 腾讯科技（深圳）有限公司 | A kind of method and apparatus that user's head portrait is set |
| CN106549903B (en) * | 2015-09-16 | 2020-09-11 | 腾讯科技（深圳）有限公司 | Method and device for setting head portrait of user |
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Application publication date: 20110608 |