CN1767614A - Image processing device - Google Patents
Image processing device Download PDFInfo
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- CN1767614A CN1767614A CN200410089641.5A CN200410089641A CN1767614A CN 1767614 A CN1767614 A CN 1767614A CN 200410089641 A CN200410089641 A CN 200410089641A CN 1767614 A CN1767614 A CN 1767614A
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- display floater
- image processing
- image
- processing apparatus
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Abstract
An image process device includes a memory and a display panel controller, in which, the memory buffer-stores multi-point image data corresponding to the image and the display panel controller is used to process image data and transmit them to the panel to be displayed and part of the image data are output to the panel via the controller.
Description
Technical field
The present invention relates to a kind of image processing apparatus (Image Processing Device), and be particularly related to a kind of image processing apparatus of saving memory headroom.
Background technology
Fig. 1 is existing handset structure block schematic diagram.Please refer to Fig. 1, mobile phone 100 comprises imageing sensor (Sensor) 110, image processing apparatus 120 and display panels 130.Image processing apparatus 120 comprises internal memory 122 and display floater controller 124.The general view data Dj that comes in by imageing sensor 110, capital complete being stored in the internal memory 122 earlier, and in the time view data Dj will being shown in display floater 130, display floater controller 124 can be by in the internal memory 122 reading view data Dj, and be sent to display floater 130 and shown.
Yet as mentioned above, for internal memory 122, image processing apparatus 120 needs one usually and stores one whole internal memory 122 that is presented at display floater 130 images.Thus, in the research and development of handset image processing unit, can't effectively save memory headroom, reach the purpose that reduces cost.
Summary of the invention
In view of this, purpose of the present invention is providing a kind of image processing apparatus exactly.The speed of speed, image size and the display floater controller transmitted image data that can come at different sensors end image, the internal memory that obtains a minimum is deposited the data that imageing sensor is come in, and the internal memory that does not need to use one whole image size comes the store images data.Therefore, can effectively save memory headroom, and then reduce production costs.
According to purpose of the present invention, propose a kind of image processing apparatus, being summarized as follows of this device: image processing apparatus is to use in a hand-held messaging device.Hand-held messaging device comprises imageing sensor and display floater, and imageing sensor is in order to sensing one image.Image processing apparatus comprises internal memory and display floater controller.Internal memory is in order to the multipoint images data of buffer memory correspondence image, and the display floater controller is in order to image data processing and is sent to display floater and is shown.In the time of the view data input image processing unit, Bu Fen view data is to export display floater to via the display floater controller at least.Therefore, this memory headroom is less than the image data amount of corresponding one whole image, effectively reduces cost.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is existing handset structure block schematic diagram.
Fig. 2 illustrates according to a preferred embodiment of the present invention handset structure block schematic diagram.
The reference numeral explanation:
100,200: mobile phone
110,210: imageing sensor
120,220: image processing apparatus
122,222: internal memory
124,224: the display floater controller
130,230: display floater
Embodiment
Please refer to Fig. 2, it illustrates the handset structure calcspar according to a preferred embodiment of the present invention.Mobile phone 200 comprises imageing sensor 210, image processing apparatus 220 and display floater 230.Image processing apparatus 220 comprises internal memory 222 and display floater controller 224.Image processing apparatus 220 is stored or is handled and be sent to display floater 230 in order to the view data Di with imageing sensor 210 inputs and shown.Internal memory 222 is in order to caching image data Di, and internal memory 222 for example is a kind of first in first out (First In First Out, FIFO) internal memory.When desiring display image data Di, display floater controller 224 can be sent to display floater 230 and be shown by reading view data Di in the internal memory 222 after being handled.
Being different from existing image processing apparatus 120 is the data that once store one whole image, and the present invention is an image processing apparatus 220 in the view data Di that receives imageing sensor 210 inputs, just begins view data Di is sent to display floater 230.That is to say, view data Di does not need whole ground to be stored in earlier in the internal memory 222, but can directly being sent to display floater 230, major part shown, and transmit the speed of data Di at speed, image size and the display floater controller 224 of different sensors 210 input data Di, can draw minimum internal memory 222 sizes that are fit to and deposit view data Di, and internal memory 222 sizes may be the sizes of the view data Di of delegation, even do not need internal memory 222.
Suppose that display floater 230 epigraphs size is Lw * Lh (unit is a pixel), general mobile phone faceplate specification is 160 * 120.(Line Blanking) is Bns at interval between each line data.And the view data Di that every bit really will be shown to display floater 230 is Xns by imageing sensor 210 institute's time spent of coming in.In addition, the data speed that display floater controller 224 is sent every bit is Yns, and the Y value is 100-300ns in the general mobile phone specification.Next, just be divided into following several situation image processing apparatus 220 spendable minimum internal memories 222 of the present invention are described.
If X＞=during Y, represent display floater controller 224 the view data Di that imageing sensor 210 is imported can be delivered to display floater 230 in real time, so without any need for the usefulness of internal memory 222 as buffer memory (Buffer).This kind situation is to belong to the situation of economizing internal memory most.For example: 640 * 480 and the sensor pixel rate (Pixel Rate) of the VGA level transducer of 15fps be about (640+160) * 480 * 15=5.76M pixel/second, wherein 160 pixels are every between-line spacing amount of pixels.The view data Di that the every row of transducer 210 input is 640 and 4 get any and are presented on 160 * 120 panels 230.So the X value is 4/5.76M=694ns.And display floater controller 224 is delivered to the 230 required times (Yns) of display floater with the every bit data and is about 200ns in the general mobile phone specification.Obviously, X＞=Y, presentation video data Di do not need to be buffered in earlier and can handle and deliver to display floater 224 in the internal memory 222 in real time and shown.
If X＜Y and (Lw * X+B)＞=(during Lw * Y), the speed that the speed of representative sensor 210 input data Di is sent data Di than display floater controller 224 is also fast, and therefore needing internal memory 222 makes buffer memory.And by the imageing sensor 210 (Lw * X+B) send the view data Di of delegation (the Lw * Y) will come longly of the time to display floater 230 that comes in the view data Di of delegation institute's time spent than display floater controller 224.So as long as prepare the internal memory that can store display floater 230 lastrow view data Di at most.For example: with regard to 640 * 480 and the VGA level transducer of 15fps with regard to, if the image quadruplication that desire is shown with 160 * 120 display floaters 230, just transducer 210 is only got 160 inputs in the middle of the view data Di of 640 of the every row of institute's sensing, then give up for all the other 480, so input every bit view data Di required time X is 1/5.76M=174ns.And display floater controller 224 is delivered to the 230 required times (Yns) of display floater with the every bit data and is about 200ns.At this moment, the X value is less than the Y value.Moreover be about 8000ns the blanking time (Bns) of importing each line data, and come in time of data line Di of transducer 210 is 160 * 174+8000=35840ns, and be 160 * 200=32000ns with the time that data line Di delivers to display floater 230.Clearly therefore 35840ns is the internal memory of display floater 230 lastrow view data Di as long as prepare memory capacity at most greater than 32000ns.
The advantage of the disclosed image processing apparatus of the above embodiment of the present invention is the speed of speed, image size and the display floater controller transmitted image data of coming at different sensors end image, time of delegation's view data adds that every row come in blanking time between the image by transducer as long as transducer is come in, transmit the time of delegation's view data to display floater greater than the display floater controller, the internal memory that just can obtain a minimum is deposited the data that transducer is come in.This minimum memory size may be the size of the view data of delegation, even does not need internal memory, the therefore use that can effectively save internal memory, and then save production cost.
In sum; though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (7)
1. an image processing apparatus is used in a hand-held messaging device, and this hand-held messaging device comprises an imageing sensor and a display floater, and this imageing sensor is in order to sensing one image, and this image processing apparatus comprises:
One internal memory, in order to buffer memory to multipoint images data that should image; And
One display floater controller is shown in order to handle these view data and to be sent to this display floater;
Wherein, when these view data were imported this image processing apparatus, Bu Fen these view data were to export this display floater to via this display floater controller at least.
2. image processing apparatus as claimed in claim 1, wherein, this memory headroom is these image data amounts less than this image of one whole of correspondence.
3. image processing apparatus as claimed in claim 1, wherein, each these view data is not less than the time that is exported to this display floater by this display floater controller from the time that this imageing sensor is imported this image processing apparatus.
4. image processing apparatus as claimed in claim 3, wherein, these view data of being imported by this imageing sensor are to handle and export to this display floater in real time via this display floater controller.
5. image processing apparatus as claimed in claim 1, wherein, each these view data is imported this image processing apparatus from this imageing sensor time is less than the time that is exported to this display floater by this display floater controller, and is not less than by the time of this display floater controller output to these view data that should display floater lastrow image by the time that this imageing sensor is imported these view data of corresponding delegation image.
6. image processing apparatus as claimed in claim 5, wherein, this memory headroom is these image data amounts that are not more than should display floater lastrow image.
7. image processing apparatus as claimed in claim 5, wherein, be in order to provide this display floater controller to export these view data to this display floater the blanking time between these view data of corresponding each the row image of this imageing sensor input certainly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100896415A CN100358353C (en) | 2004-10-29 | 2004-10-29 | Image processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100896415A CN100358353C (en) | 2004-10-29 | 2004-10-29 | Image processing device |
Publications (2)
| Publication Number | Publication Date |
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| CN1767614A true CN1767614A (en) | 2006-05-03 |
| CN100358353C CN100358353C (en) | 2007-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100896415A Expired - Fee Related CN100358353C (en) | 2004-10-29 | 2004-10-29 | Image processing device |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003046841A (en) * | 2001-07-30 | 2003-02-14 | Fuji Photo Film Co Ltd | Simple digital camera and image-ordering method using the same |
| JP2004078059A (en) * | 2002-08-22 | 2004-03-11 | Rohm Co Ltd | Display device |
| JP2004274566A (en) * | 2003-03-11 | 2004-09-30 | Nec Corp | Mobile phone and image display method thereof |
| CN1263296C (en) * | 2003-07-07 | 2006-07-05 | 凌阳科技股份有限公司 | Digital camera image controller apparatus used for mobile telephone |
| CN2645376Y (en) * | 2003-09-28 | 2004-09-29 | 黎柏松 | Digital camera |
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Effective date of registration: 20180129 Address after: Taiwan Hsinchu County Tai Yuan Street China jhubei City, No. 26 4 floor 1 Patentee after: MSTAR SEMICONDUCTOR Inc. Address before: Hsinchu County, Taiwan, China Patentee before: ALPHA IMAGING TECHNOLOGY CORPORATION |
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Effective date of registration: 20200410 Address after: No.1, Duhang 1st Road, Hsinchu City, Hsinchu Science Park, Taiwan, China Patentee after: MEDIATEK Inc. Address before: Taiwan Hsinchu County Tai Yuan Street China jhubei City, No. 26 4 floor 1 Patentee before: MSTAR SEMICONDUCTOR Inc. |
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Granted publication date: 20071226 Termination date: 20211029 |
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