CN1567992A - Digital camera image controller apparatus used for mobile telephone - Google Patents
Digital camera image controller apparatus used for mobile telephone Download PDFInfo
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- CN1567992A CN1567992A CN 03145399 CN03145399A CN1567992A CN 1567992 A CN1567992 A CN 1567992A CN 03145399 CN03145399 CN 03145399 CN 03145399 A CN03145399 A CN 03145399A CN 1567992 A CN1567992 A CN 1567992A
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Abstract
The invention is an image controlling device applied to mobile phone and digital camera, it uses a sensing model to optical signal of image in order to generates RGB image signal, and uses a image controller to receive the RGB image signal, in order to generates a previewing signal of image to a LCD model, and outputs compressed or uncompressed image signal to a base frequency processor. Because that the image controller contains color difference compensation device provided by camera traditionally and converter from RGB to YUV, thus the camera model can be simplified to sensing model only containing lends and sensor, thus it can avoid the deficiency caused by using camera model.
Description
Technical field
The invention relates to a kind of digital camera image controller, refer to a kind of digital camera image controller device that is applicable to mobile phone especially.
Background technology
Development along with electronics technology, mobile phone handsets can provide the function of speech communication incessantly at present, more can provide diversified function, for example, one camera model is set on mobile phone handsets, so that instant photograph can be taken pictures and transmit to mobile phone handsets, Fig. 1 promptly shows the framework of the mobile phone handsets that are provided with this kind camera model, as shown in the figure, camera model 11 includes camera lens 111, sensor 112, color difference is mended device 113, and RGB to YUV transducer 114, wherein, camera lens 111 will be in order to will collect the optical signal of image, this optical signal is by sensor 112 inductions and be converted into electric signal, and sensor 112 to be pixels (pixel) by arrayed constituted, the colored image of induction according to this, and each pixel only can be responded to R (red), G (green), a kind of color among the B (indigo plant), and the arrangement of colour element is a row RGRG ... reach a row GBGB ..., as shown in Figure 2.This color difference is mended 113 in device in order to obtain the color of each pixel institute gaps and omissions, rebuilds the complete rgb color information of each pixel according to this.And this data with complete rgb color is converted to the YUV data formats via this RGB to YUV transducer 114 again.The image data of this yuv format is handled via the fundamental frequency processor 12 of mobile phone again, and picked image is shown on the LCD display 13.
In aforesaid framework, since this fundamental frequency processor 12 is essential be responsible for images compression and decompress, with all works of treatment such as image processing control to LCD display 13, therefore its computational burden is extremely heavy, and can cause the speed of preview on LCD display 13 (preview) image extremely slow, for this reason, as shown in Figure 3, generally be the burden that alleviates fundamental frequency processor 12 with the image compression controller 31 that increases by a special use, so it still can't improve the slow excessively problem of preview speed.Another kind of settling mode is as shown in Figure 4, improve the usefulness of camera with a display controller 41 that includes image compression engine 411 (for example JPEGCodec) and video conversion interface 412, it not only can alleviate the burden of fundamental frequency processor 12, also can quicken the speed of preview image.
Yet, aforementioned known various frameworks all need use camera model 11, only this kind camera model 11 but has following shortcoming: (1) is owing to must provide and comprise that color difference is mended and complicated hardware computing such as color conversion, so it costs an arm and a leg: (2) more do not have elasticity in the correction of color; (3) owing to complicate fabrication process, so its reliability is relatively poor.Therefore, aforementionedly known digital camera application is given improved necessity in the design of mobile phone is real.
Summary of the invention
Main purpose of the present invention is that a kind of digital camera image controller device that is used for mobile phone is being provided, and need not to provide to comprise complicated hardware computings such as color difference benefit and color conversion, so its cost is lower.
Secondary objective of the present invention is a kind of digital camera image controller device that is used for mobile phone to be provided, to have elasticity in the correction of color.
A further object of the present invention is that a kind of digital camera image controller device that is used for mobile phone is being provided, and manufacture process is simple, and reliability is better.
For achieving the above object, a kind of digital camera image controller device that is used for mobile phone of the present invention comprises:
One LCD module is the display unit of mobile phone, in order to show the various information of communication;
One fundamental frequency processor, its circuit that connects mobile phone is handled to carry out required communication;
One sensing module in order to the optical signal of induction external image, and produces the rgb format image signal;
One image controller comprises:
One color difference is mended device, mends in order to each pixel of the rgb format image signal that aforementioned sensing module produced is carried out color difference, and obtains the rgb format image signal of tool by full color information:
One RGB to YUV transducer is in order to be converted to the yuv format image signal with the rgb format image signal;
One YUV to RGB transducer is in order to be converted to the rgb format image signal with the yuv format image signal;
One compression engine is in order to compression or this yuv format image signal that decompresses;
One buffer, in order to the yuv format image signal of temporary this RGB image signal and compression,
Wherein, the RGB image signal that is temporary in this buffer can directly be shown in this LCD module, the yuv format image signal that is temporary in the compression of this buffer can be sent to the fundamental frequency processor with after carrying out follow-up processing or being decompressed by this compression engine, via this YUV to RGB transducer so that the yuv format image signal is converted to the rgb format image signal, so that be shown in this LCD module.
The described digital camera image controller device that is used for mobile phone, wherein this sensing module comprises a camera lens and a sensor, and this camera lens is in order to collect the optical signal of image, and this optical signal is responded to produce the rgb format image signal by sensor.
The described digital camera image controller device that is used for mobile phone is characterized in that wherein this compression engine is a JPEG codec.
The described digital camera image controller device that is used for mobile phone, it more comprises a sensor interface that is connected to sensing module.
The described digital camera image controller device that is used for mobile phone, it more comprises a display interface that is connected to the LCD module.
The described digital camera image controller device that is used for mobile phone, it more comprises a main frame interface that is connected to the fundamental frequency processor.
The described digital camera image controller device that is used for mobile phone, wherein being temporary in the RGB image signal of this buffer and the yuv format image signal of compression is from this sensing module.
The described digital camera image controller device that is used for mobile phone, wherein being temporary in the RGB image signal of this buffer and the yuv format image signal of compression is from this fundamental frequency processor.
The described digital camera image controller device that is used for mobile phone, wherein when only desire shows image existing in the mobile phone, this fundamental frequency processor is that image data directly is shown in this LCD module by image controller, and the color difference that need not to open sensing module and image controller is mended device, RGB to YUV transducer, and compression engine.
In the aforementioned framework that is used for the digital camera image controller device of mobile phone of the present invention, because having comprised traditionally, image controller 52 mends device 61 and RGB to YUV transducer 62 by the color difference that camera model provided, therefore, camera model can be reduced to the sensing module 51 that only comprises camera lens 511 and sensor 512, therefore, the shortcoming that can avoid known use camera model to be caused, and owing to the conversion of color difference benefit image signal is all carried out, so can promote the elasticity of adjusting for the chromatic image of different sensing modules in an image controller 52.
In addition, under framework of the present invention, because camera lens 511 is to be arranged in sensing module 51 with sensor 512, and color difference is mended device 61, RGB to YUV transducer 62, and compression engine 65 is to be packaged in the image controller 52, so can be opened or be closed on demand by image controller 52, therefore, when only desire shows image existing in the mobile phone, fundamental frequency processor 54 can directly be shown in this LCD module 53 by image controller 52 with image data, and the function that need not to open camera, that is, sensing module 51 is mended device 61 with the color difference in the image controller 52, RGB to YUV transducer 62, reach compression engine 65 and all need not to be started, thereby a kind of Correspondent (feed-through) mode of operation that power supply expends of saving can be provided.
Description of drawings
Fig. 1 is the known Organization Chart that is provided with the mobile phone handsets of camera model;
Fig. 2 is the pattern that shows the arrayed pixel of sensor;
Fig. 3 shows the known a kind of framework that improves that is provided with the mobile phone handsets of camera model;
Fig. 4 shows that the known another kind that is provided with the mobile phone handsets of camera model improves framework;
Fig. 5 is the Organization Chart that is used for the digital camera image controller device of mobile phone of the present invention;
Fig. 6 is the Organization Chart of the image controller of the digital camera image controller device that is used for mobile phone of the present invention.
Embodiment
For understanding technology contents of the present invention, be described as follows especially exemplified by a preferred embodiment.
Please be earlier with reference to the Organization Chart that is used for the digital camera image controller device of mobile phone of the present invention shown in Figure 5, it includes sensing module 51, image controller 52, LCD module 53 and fundamental frequency processor 54 etc., wherein, fundamental frequency processor 54 is processing unit of general mobile phone, its circuit that connects mobile phone is handled to carry out required communication, LCD module 53 then is the display unit of general mobile phone, in order to show the various information of communication.
Fig. 6 shows the framework of aforementioned image controller 52, mainly be to mend device 61 by color difference, RGB to YUV transducer 62, buffer 63, YUV to RGB transducer 64, compression engine 65, reach and be connected to sensing module 51 respectively, the sensor interface 66 of LCD module 53 and fundamental frequency processor 54, display interface 67 and main frame interface 68 constitute, wherein, sensor interface 66 receives the RGB image signal of the Bayer pattern that is transmitted by this sensing module 51, carry out color difference with each pixel of mending 61 pairs of RGB image signals that received of device by this color difference and mend, and obtain the RGB image signal of tool by full color information.
The RGB image signal of aforementioned poor benefit can directly be stored in this buffer 63, and can directly export LCD module 53 to show via this image interface, or be sent to fundamental frequency processor 54 to carry out subsequent treatment via this main frame interface 68, in addition, the RGB image signal of this poor benefit also can be converted to the image signal of yuv format earlier via this RGB to YUV transducer 62, and by for example being stored in this buffer 63 after compression engine 65 compressions for the JPEG codec, the image data of this compression is sent to fundamental frequency processor 54 to carry out subsequent treatment via this main frame interface 68, and because LCD module 53 only can be discerned the signal of rgb format, therefore, the compressing image data that is received from fundamental frequency processor 54 by main frame interface 68 need be temporary in earlier in this buffer 63, and be condensed to the YUV image signal by these compression engine 65 decompress(ion)s, be converted to the RGB image signal by this YUV to RGB transducer 64 again, so that be shown in this LCD module 53 by display interface 67, again, as receiving image data from fundamental frequency processor 54 by main frame interface 68 if uncompressed, then it is temporary in this buffer 63, can directly be shown in this LCD module 53 by display interface 67.
The foregoing description only has been convenience explanation and giving an example, and the interest field that the present invention advocated is from should being as the criterion so that claim is described, but not only limits to the foregoing description.
Claims (9)
1, a kind of digital camera image controller device that is used for mobile phone is characterized in that, comprising:
One LCD module is the display unit of mobile phone, in order to show the various information of communication;
One fundamental frequency processor, its circuit that connects mobile phone is handled to carry out required communication;
One sensing module in order to the optical signal of induction external image, and produces the rgb format image signal;
One image controller comprises:
One color difference is mended device, mends in order to each pixel of the rgb format image signal that aforementioned sensing module produced is carried out color difference, and obtains the rgb format image signal of tool by full color information:
One RGB to YUV transducer is in order to be converted to the yuv format image signal with the rgb format image signal;
One YUV to RGB transducer is in order to be converted to the rgb format image signal with the yuv format image signal;
One compression engine is in order to compression or this yuv format image signal that decompresses;
One buffer, in order to the yuv format image signal of temporary this RGB image signal and compression,
Wherein, the RGB image signal that is temporary in this buffer can directly be shown in this LCD module, the yuv format image signal that is temporary in the compression of this buffer can be sent to the fundamental frequency processor with after carrying out follow-up processing or being decompressed by this compression engine, via this YUV to RGB transducer so that the yuv format image signal is converted to the rgb format image signal, so that be shown in this LCD module.
2, the digital camera image controller device that is used for mobile phone according to claim 1, it is characterized in that, wherein this sensing module comprises a camera lens and a sensor, and this camera lens is in order to collect the optical signal of image, and this optical signal is responded to produce the rgb format image signal by sensor.
3, the digital camera image controller device that is used for mobile phone according to claim 1 is characterized in that, wherein this compression engine is a JPEG codec.
4, the digital camera image controller device that is used for mobile phone according to claim 1 is characterized in that, it more comprises a sensor interface that is connected to sensing module.
5, the digital camera image controller device that is used for mobile phone according to claim 1 is characterized in that, it more comprises a display interface that is connected to the LCD module.
6, the digital camera image controller device that is used for mobile phone according to claim 1 is characterized in that, it more comprises a main frame interface that is connected to the fundamental frequency processor.
7, the digital camera image controller device that is used for mobile phone according to claim 1 is characterized in that, wherein being temporary in the RGB image signal of this buffer and the yuv format image signal of compression is from this sensing module.
8, the digital camera image controller device that is used for mobile phone according to claim 1 is characterized in that, wherein being temporary in the RGB image signal of this buffer and the yuv format image signal of compression is from this fundamental frequency processor.
9, the digital camera image controller device that is used for mobile phone according to claim 1, it is characterized in that, wherein when only desire shows image existing in the mobile phone, this fundamental frequency processor is that image data directly is shown in this LCD module by image controller, and the color difference that need not to open sensing module and image controller is mended device, RGB to YUV transducer, and compression engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03145399 CN1263296C (en) | 2003-07-07 | 2003-07-07 | Digital camera image controller apparatus used for mobile telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03145399 CN1263296C (en) | 2003-07-07 | 2003-07-07 | Digital camera image controller apparatus used for mobile telephone |
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| Publication Number | Publication Date |
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| CN1567992A true CN1567992A (en) | 2005-01-19 |
| CN1263296C CN1263296C (en) | 2006-07-05 |
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| CN 03145399 Expired - Fee Related CN1263296C (en) | 2003-07-07 | 2003-07-07 | Digital camera image controller apparatus used for mobile telephone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358353C (en) * | 2004-10-29 | 2007-12-26 | 曜鹏科技股份有限公司 | Image processing device |
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2003
- 2003-07-07 CN CN 03145399 patent/CN1263296C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358353C (en) * | 2004-10-29 | 2007-12-26 | 曜鹏科技股份有限公司 | Image processing device |
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| CN1263296C (en) | 2006-07-05 |
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