CN102739930A - Image capturing device and image processing method thereof - Google Patents
Image capturing device and image processing method thereof Download PDFInfo
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- CN102739930A CN102739930A CN2011100910075A CN201110091007A CN102739930A CN 102739930 A CN102739930 A CN 102739930A CN 2011100910075 A CN2011100910075 A CN 2011100910075A CN 201110091007 A CN201110091007 A CN 201110091007A CN 102739930 A CN102739930 A CN 102739930A
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Abstract
The invention discloses an image capturing device and an image processing method thereof. The image capturing device comprises an image capturing module, a storage module and a processing module. The processing module comprises a plurality of buffer areas. The image capturing module is controlled by the processing module to capture first image data, successively store the data in the plurality of buffer areas and carry out corresponding image processing so as to generate processing data. The processing module carries out image compression on the processed data and stores the data in the storage module. In addition, while the processing module carries out the image compression, the image capturing module is controlled by the processing module to capture second image data and successively store the data in the plurality of buffer areas so as to carry out corresponding the image processing. In current image capturing application, an image processing speed delay makes that efficiency of a continuous capturing mode of the image is low. By using the device and the method of the invention, the above problem can be solved.
Description
Technical field
The invention relates to a kind of image capture unit and image treatment method thereof, particularly relevant for a kind of whole the camera even image capture unit and image treatment method thereof of the efficient of bat of promoting.
Background technology
In daily life now, the digital product of various replacement traditional analog technology is very universal, and digital camera is a good example.After digital camera utilizes the optical sensor pick-up image and converts digital signal into, picked image is stored into the image archives with the form of electronic chart file.One of present image File Format the most widely is that (Joint Photographic Experts Group, JPEG), and the image archives of jpeg format have been used in most digital camera or other digital product to Joint Photographics Expert Group JPEG.
So; Recently digital camera connects the usefulness of clapping when taking pictures and asks harsh more; In order to promote the whole usefulness of clapping that connects; Common mode still under the condition of the hardware frequency limit, often must set about improving nothing more than being exactly to promote the execution frequency of hardware or utilize efficient system flow control from the flow process control of system.
At present general image processing flow process just can be carried out the image processing that next is even clapped after needing the supervisor deposit to accomplish.That is to say; Get into JPEG image processing program in the photograph in connecting to clap; When the data on the YCbCr color space buffering area (Buffer) are carried out the process of JPEG image processing and save File, need to accomplish a last image data and begin to carry out next image data.So, connect to clap in the image processing time will companys of having influence on bat usefulness; That is whole the company clap that usefulness can receive the size of JPEG archives or processing time length that memory card is write card speed influence, once the processing time of being correlated with has been grown, company claps usefulness and just can reduce.
Therefore,, design a desirable image capture unit and an image treatment method thereof, promote whole camera and connect the efficient of clapping, become the instant subject under discussion on the application market with demand.
Summary of the invention
The purpose of this invention is to provide a kind of image capture unit and image treatment method thereof, use,, make image connect the low problem of usefulness of clapping because of the delay of image processing speed to solve present image capture.
For realizing above-mentioned purpose, the present invention takes following design:
A kind of image capture unit, it comprises an image acquisition module, a storage module and a processing module.Image acquisition module is opened (more than two) image in order to capture plural number.Storage module should be opened image by plural number in order to store.Processing module comprises two above buffering areas, and this processing module control image acquisition module captures one first image data and is stored in this a plurality of buffering areas in regular turn, carries out corresponding image processing, to produce a deal with data; Processing module is carried out this deal with data the image compression and is stored in storage module.Wherein, when processing module was carried out the image compression, this processing module control image acquisition module captured one second image data and is stored in this a plurality of buffering areas in regular turn, to carry out corresponding image processing.
Wherein, These a plurality of buffering areas comprise a color filter array, and (processing module is stored in this color filter array buffering area with first image data for Color Filter Array, CFA) buffering area; Carrying out the image processing that redness, green and blue light filter, and produce temporary transient data.
Wherein, These a plurality of buffering areas comprise one the one YCbCr color space buffering area and one the 2nd YCbCr color space buffering area; Processing module should temporary transient data storing in a YCbCr color space buffering area or the 2nd YCbCr color space buffering area; Carrying out the image processing of brightness or aberration, and produce this deal with data.
Wherein, processing module is carried out a Joint Photographics Expert Group JPEG (Joint Photographic Experts Group, image processing JPEG) with this deal with data.
According to the object of the invention; Reintroduce a kind of image treatment method; It is applicable to an image capture unit; Image capture unit comprises an image acquisition module, a storage module and a processing module, and processing module comprises a plurality of buffering areas, and image treatment method comprises the following step: capture one first image data with image acquisition module; Store first image data in order in these a plurality of buffering areas, carrying out corresponding image processing, and produce a deal with data; By processing module this deal with data is carried out the image compression and is stored in storage module; And when processing module is carried out the image compression to this deal with data, capture one second image data with image acquisition module, and repeat above-mentioned storage and processed steps.
Wherein, Image treatment method of the present invention more can comprise: see through processing module this first image data is stored in a color filter array (the Color Filter Array in these a plurality of buffering areas; CFA) buffering area; Carrying out the image processing that redness, green and blue light filter, and produce temporary transient data.
Wherein, Image treatment method of the present invention more can comprise: see through one one YCbCr color space buffering area or the one two YCbCr color space buffering area of processing module in will these a plurality of buffering areas of this temporary transient data storing; Carrying out the image processing of brightness or aberration, and produce this deal with data.
Wherein, image treatment method of the present invention more can comprise: see through this processing module this deal with data is carried out a Joint Photographics Expert Group JPEG (Joint Photographic Experts Group, image processing JPEG).
According to the object of the invention; A kind of image treatment method is proposed again; It is applicable to an image capture unit; Image capture unit comprises an image acquisition module, a storage module and a processing module, and processing module comprises one first buffering area, one second buffering area and one the 3rd buffering area, and image treatment method comprises the following step: capture one first image data with image acquisition module; Store first image data in first buffering area; First image data is carried out one first image processing, to form one first temporary transient data; Store the first temporary transient data in second buffering area or the 3rd buffering area; The first temporary transient data are carried out one second image processing, to obtain one second temporary transient data; By processing module the second temporary transient data are carried out the image compression and are stored in storage module; And when processing module is carried out the image compression, capture one second image data with image acquisition module, and repeat above-mentioned storage and processed steps.
Wherein, First buffering area is that (processing module is stored in the color filter array buffering area with first image data to a color filter array for Color Filter Array, CFA) buffering area; Carrying out the image processing that redness, green and blue light filter, and produce the first temporary transient data.
Wherein, Second buffering area and the 3rd buffering area are respectively one the one YCbCr color space buffering area and one the 2nd YCbCr color space buffering area; Processing module with the first temporary transient data storing in a YCbCr color space buffering area or the 2nd YCbCr color space buffering area; Carrying out the image processing of brightness or aberration, and produce the second temporary transient data.
Wherein, image treatment method of the present invention more can comprise: see through processing module these second temporary transient data are carried out a Joint Photographics Expert Group JPEG (Joint Photographic Experts Group, image processing JPEG).
Advantage of the present invention is: this image capture unit and image treatment method thereof can be with the most time-consuming another handling procedures of the independent one-tenth of JPEG image processing program; Once after this handling procedure is activated; This image capture device just can be proceeded next and even clap the data that produce, and needn't wait up till now the JPEG image to deposit file.So, the speed that two the image processing time of the front and back in connect clapping just can not receive written document speed influence, and reaches the purpose that efficient is clapped by the whole camera of lifting company.
Description of drawings
Fig. 1 is the calcspar of image capture unit one embodiment of the present invention.
Fig. 2 is the sketch map of image capture unit one embodiment of the present invention.
Fig. 3 is the sketch map of image processing one embodiment of image capture unit of the present invention.
Fig. 4 is the sketch map that result one embodiment claps in the company of image capture unit of the present invention.
Fig. 5 is the sketch map with electronic installation one embodiment of image acquisition function of the present invention.
Fig. 6 is the flow chart of image treatment method of the present invention.
Below in conjunction with accompanying drawing and specific embodiment the present invention is explained further details.
Embodiment
Below will the embodiment according to image capture unit of the present invention and image treatment method thereof be described, and be convenient to understand that the same components among the following embodiment is to explain with identical symbology for making with reference to correlative type.
Image capture unit of the present invention can be digital camera (Digital Camera), camera cell phone (Camera Phone), intelligent mobile phone (Smartphone) or digital camera various portable electronic devices with camera function such as (Digital Video Camera); For ease of more understanding technical characterictic of the present invention; Below be to be embodiment with the intelligent mobile phone, but not as limit.
See also Fig. 1, it is the calcspar of image capture unit one embodiment of the present invention.As shown in the figure, image capture unit 1 of the present invention has comprised an image acquisition module 10, a storage module 11, a display module 12, an input module 13, a processing module 14 and a coding module 15.Image acquisition module 10 is used for pick-up image and produce image data; Image acquisition module 10 can comprise camera lens, photosensory assembly such as CMOS assembly (Complementary Metal-Oxide-Semiconductor; CMOS) or Charged Coupled Device (Charge-Coupled-Device, CCD), analog/digital circuit, image processor etc.Storage module 11 can be done the storage of image, and it can be embedded memory, circumscribed memory card or its combination.Display module 12 is in order to show image, its can be LCD (Liquid Crystal Display, LCD) or the touch control type LCD screen.
Processing module 14 electrically connects image acquisition module 10, storage module 11, display module 12, input module 13 and coding module 15; It can be central processing unit (Central Processing Unit, CPU) or microprocessor (Micro-Processing Unit).Processing module 14 can comprise one first buffering area (buffer) 141, one second buffering area 142 and one the 3rd buffering area 143; Wherein, First buffering area 141, second buffering area 142 and the 3rd buffering area 143 can be respectively a color filter array (Color Filter Array, CFA) buffering area, one the one YCbCr color space buffering area and one the 2nd YCbCr color space buffering area in regular turn.Processing module 14 can be according to the signal of input module 13 inputs, 1 one-tenth one continuous photographing mode of setting of image capture device.When image capture unit 1 is set a continuous photographing mode for and is carried out image capture; Processing module 14 may command image acquisition modules 10 acquisitions one first image data 101; And this first image data 101 is stored in first buffering area 141 (color filter array buffering area), the image processing of filtering with the light that carries out redness (R), green (G) and blue (B).
And processing module 14 can be stored in second buffering area 142 (a YCbCr color space buffering area) with handling first image data 101 later in first buffering area 141 (color filter array buffering area), to carry out the image processing of brightness or aberration.Then; First image data 101 that 15 pairs of processing module 14 may command coding modules carried out brightness or aberration processing carries out a Joint Photographics Expert Group JPEG (Joint Photographic Experts Group; JPEG) image processing is to produce JPEG image archives 151; And these JPEG image archives 151 are stored in storage module 11.
In addition; When 15 pairs of coding modules carried out first image data 101 that brightness or aberration handle when carrying out the JPEG image processing; Processing module 14 may command image acquisition modules 10 acquisitions one second image data 102; And this second image data 102 is stored in first buffering area 141 (color filter array buffering area), to carry out the image processing that redness, green and blue light filter.Similarly, processing module 14 can be stored in the 3rd buffering area 143 (the 2nd YCbCr color space buffering area) with handling second image data 102 later in first buffering area 141 (color filter array buffering area), to carry out the image processing of brightness or aberration.Processing module 14 can be controlled 15 pairs of coding modules again and carried out second image data 102 that brightness or aberration handle and carry out the JPEG image processing, to produce another JPEG image archives 152; And these JPEG image archives 152 are stored in storage module 11.And processing module 14 may command display modules 12 show JPEG image archives 151,152 in regular turn.
By content described above; Can know when 15 pairs of last image datas of coding module carry out the JPEG image processing; Next opens image data 10 acquisitions of processing module 14 may command image acquisition modules, and next opens the relevant RGB three primary colors that continue of image data and the image processing of brightness or aberration to carry out this.That is to say, need not wait up till now JPEG image archives to deposit file, image capture unit of the present invention can be proceeded next and even clap the data that produce.Two image processing times of front and back in so, even clapping just can not receive the archives compression and write a grade speed and influence.In addition, ought the above-mentioned functional module of any combination become an integrated module but be familiar with this art, or be split into the thin portion of each function unit, decide according to the convenience in the design.
See also Fig. 2, it is the sketch map of image capture unit one embodiment of the present invention.As shown in the figure, in the present embodiment, user's 21 Touch Screens of being located on the intelligent mobile phone capable of using are set the instruction of input " image continuous photographing mode ", take a flying bird to utilize intelligent mobile phone.So; When user 21 presses shutter and carries out continuous shooting; Image acquisition module 10 can be with the picked image data recording in color filter array buffering area 141; This color filter array buffering area 141 meets bell pattern (Bayer Pattern), to carry out the image processing of redness (R), green (G) and blue (B) trichromatic light filtration.Please consult Fig. 3 in the lump, it is the sketch map of image processing one embodiment of image capture unit of the present invention.As shown in the figure; In the present embodiment; Processing module 14 can be opened image data 31 with the n after handling in color filter array buffering area 141 and is stored in a YCbCr color space buffering area 142, to carry out converting the rgb signal of numeral into the brightness of numeral and the image processing of aberration conversion.Wherein, open image data 31 and be stored in a YCbCr color space buffering area 142,, can be one first work disposal program in the present embodiment to carry out the process of brightness and aberration conversion image processing to this n being opened image data 31 from capturing n.
Then; Processing module 14 may command coding modules 15 carry out one second work disposal program: promptly the n that carried out brightness and aberration conversion process is opened image data 31 and carry out JPEG image processing program 35, to produce the JPEG image archives 311 that a n opens image data; And the JPEG image archives 311 that this n opens image data are stored in storage module 11.And; When coding module 15 when carrying out the second work disposal program; Processing module 14 may command image acquisition modules 10 acquisitions one n+1 opens image data 32; And the n+1 that will capture opens image data 32 and is embedded in the color filter array buffering area 141, to carry out the image processing that redness (R), green (G) and blue (B) trichromatic light are filtered.
Likewise; Processing module 14 can be opened image data 32 with the n+1 after handling in color filter array buffering area 141 and is stored in the 2nd YCbCr color space buffering area 143, to carry out converting the rgb signal of numeral into the brightness of numeral and the image processing of aberration conversion; In other words; Processing module 14 can with handle in color filter array buffering area 141 image data later be stored in one can carry out brightness and aberration conversion process in real time YCbCr color space buffering area (in the present embodiment; Processing module 14 can be intersected at a distance from be stored in a YCbCr color space buffering area 142,143 inferiorly handle image data later in color filter array buffering area 141 in order; Right the present invention is not limited to this position when reality is implemented).When 15 couples of n+1 of processing module 14 control coding modules opened image data 32 and carry out second handling procedure, processing module 14 can be controlled image acquisition module 10 acquisitions one n+2 again and open image data 33.Then, processing module 14 can be stored in the JPEG image archives that carried out the JPEG image processing in the storage module 11 in regular turn; And in display module 12, show those JPEG image archives apace in regular turn.
See also Fig. 4, it is the sketch map of bat result one embodiment of company of image capture unit of the present invention.As shown in the figure, it claps sketch map as a result for the company that the user takes a flying bird.Because of image capture unit of the present invention can be with the most time-consuming another work disposal program of the independent one-tenth of JPEG image processing program; Once after the second work disposal program is activated; The first work disposal program just can be proceeded to handle next and even clap the data that produce; Needn't wait up till now the JPEG image to deposit file, JPEG deposit work is then transferred to the second work disposal program and is independently carried out.So, two image processing times of the front and back in even clapping just can not receive the archives compression and write a grade speed and influence, and reach the purpose that usefulness is clapped by the company of lifting.
What deserves to be mentioned is; Under the present invention, having common knowledge the knowledgeable in the field should understand; Image data stored color filter array buffering area, YCbCr color space buffering area and JPEG image processing in the process of handling is merely the way of illustration but not limitation of implementing aspect, chats bright at this in advance.
See also Fig. 5, it is the sketch map with electronic installation one embodiment of image acquisition function of the present invention.As shown in the figure, electronic installation 5 of the present invention comprises a body 50, an input unit 51 and an image capture unit 1.Image capture unit 1 is arranged on the body 50 and with input unit 51 and electrically connects.1 of image capture unit has comprised image acquisition module 10, storage module 11, display module 12, input module 13, processing module 14 and coding module 15.In the present embodiment; Electronic installation 5 of the present invention promptly is example with the intelligent mobile phone; It can be used as taking a picture by embedded image capture unit proposed by the invention 1; Thereby the user can be by the input unit 51 of intelligent mobile phone like Touch Screen or physical button etc., and under the situation of the continuous filmed image of needs, electronic installation 5 begins to carry out the access in regular turn and the coherent video processing action of above-mentioned image capture, buffering area immediately; But the first work disposal program and the second work disposal program by above-mentioned parallel processing can promote the continuous image shooting efficiency widely.The intelligent mobile phone that present embodiment disclosed is merely way of illustration but not limitation protection scope of the present invention.
Specify below in conjunction with flow chart.
See also Fig. 6, it is the flow chart of image treatment method of the present invention.As shown in the figure, image treatment method of the present invention, it is applicable to an image capture unit, this image capture unit comprises an image acquisition module, a storage module, a display module, an input module, a processing module and a coding module.The image treatment method of image capture unit comprises the following step: step S61 captures one first image data with this image acquisition module.Step S62 stores this first image data in this first buffering area.Step S63 carries out one first image processing with this first image data, to form one first temporary transient data.Step S64 stores these first temporary transient data in this second buffering area or the 3rd buffering area.Step S65 carries out one second image processing with these first temporary transient data, to obtain one second temporary transient data.Step S66 is carried out the image compression and is stored in this storage module these second temporary transient data by this processing module.Step S67 when this processing module is carried out the image compression, captures one second image data with this image acquisition module, and repeats above-mentioned storage and processed steps.
The detailed description of the image treatment method of image capture unit of the present invention and execution mode were described when image capture unit of the present invention noted earlier and electronic installation, just no longer narrated for schematic illustration at this.
In sum; Image capture unit proposed by the invention and image treatment method thereof can be with the most time-consuming another handling procedures of the independent one-tenth of JPEG image processing program; Once after this handling procedure is activated; This image capture device just can be proceeded next and even clap the data that produce, and needn't wait up till now the JPEG image to deposit file.So, the speed that two the image processing time of the front and back in connect clapping just can not receive written document speed influence, and reaches the purpose that efficient is clapped by the whole camera of lifting company.
The above is merely illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the accompanying claim its equivalent modifications of carrying out or change.
Claims (12)
1. image capture unit is characterized in that comprising:
One image acquisition module is in order to capture the image more than two;
One storage module is in order to store these images; And
One processing module; Comprise the buffering area more than two; This this image acquisition module of processing module control captures one first image data and is stored in this a few buffering areas in regular turn; Carry out corresponding image processing, to produce a deal with data, this processing module is carried out this deal with data the image compression and is stored in this storage module;
Wherein, when this processing module was carried out the image compression, this this image acquisition module of processing module control captured one second image data and is stored in this a few buffering areas in regular turn, to carry out corresponding image processing.
2. image capture unit according to claim 1; It is characterized in that: said these a few buffering areas include a color filter array buffering area at least; This processing module is stored in this color filter array buffering area with this first image data; Carrying out the image processing that redness, green and blue light filter, and produce temporary transient data.
3. image capture unit according to claim 2; It is characterized in that: said these a few buffering areas still comprise one the one YCbCr color space buffering area and one the 2nd YCbCr color space buffering area; This processing module should temporary transient data storing in a YCbCr color space buffering area or the 2nd YCbCr color space buffering area; Carrying out the image processing of brightness or aberration, and produce this deal with data.
4. image capture unit according to claim 1 is characterized in that: this processing module is carried out this deal with data the image processing of one Joint Photographics Expert Group JPEG.
5. image treatment method; Be applicable to an image capture unit; This image capture unit comprises an image acquisition module, a storage module and a processing module, and this processing module comprises the buffering area more than two, it is characterized in that this image treatment method comprises the following step:
Capture one first image data with this image acquisition module;
Store this first image data in order in these a few buffering areas, carrying out corresponding image processing, and produce a deal with data;
By this processing module this deal with data is carried out the image compression and is stored in this storage module; And
When this processing module is carried out the image compression to this deal with data, capture one second image data with this image acquisition module, and repeat above-mentioned storage and processed steps.
6. image treatment method according to claim 5 is characterized in that more comprising the following step:
See through this processing module this first image data is stored in the color filter array buffering area in these a few buffering areas, carrying out the image processing of redness, green and blue light filtration, and produce temporary transient data.
7. image treatment method according to claim 6 is characterized in that more comprising the following step:
See through one one YCbCr color space buffering area or the one two YCbCr color space buffering area of this processing module in will these a few buffering areas of this temporary transient data storing, carrying out the image processing of brightness or aberration, and produce this deal with data.
8. image treatment method according to claim 5 is characterized in that: more comprise the following step:
See through this processing module and this deal with data is carried out the image processing of a Joint Photographics Expert Group JPEG.
9. image treatment method; Be applicable to an image capture unit; This image capture unit comprises an image acquisition module, a storage module and a processing module; And this processing module comprises one first buffering area, one second buffering area and one the 3rd buffering area, and it is characterized in that: this image treatment method comprises the following step:
Capture one first image data with this image acquisition module;
Store this first image data in this first buffering area;
This first image data is carried out one first image processing, to form one first temporary transient data;
Store these first temporary transient data in this second buffering area or the 3rd buffering area;
These first temporary transient data are carried out one second image processing, to obtain one second temporary transient data;
By this processing module these second temporary transient data are carried out the image compression and are stored in this storage module;
And
When this processing module is carried out the image compression, capture one second image data with this image acquisition module, and repeat above-mentioned storage and processed steps.
10. image treatment method according to claim 9; It is characterized in that: this first buffering area is a color filter array buffering area; This processing module is stored in this color filter array buffering area with this first image data; Carrying out the image processing that redness, green and blue light filter, and produce this first temporary transient data.
11. image treatment method according to claim 10; It is characterized in that: this second buffering area and the 3rd buffering area are respectively one the one YCbCr color space buffering area and one the 2nd YCbCr color space buffering area; This processing module with this first temporary transient data storage in a YCbCr color space buffering area or the 2nd YCbCr color space buffering area; Carrying out the image processing of brightness or aberration, and produce this second temporary transient data.
12. image treatment method according to claim 9 is characterized in that more comprising the following step: see through this processing module these second temporary transient data are carried out the image processing of a Joint Photographics Expert Group JPEG.
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Application publication date: 20121017 |