CN101986693A - Image sensor, working method thereof and display device - Google Patents
Image sensor, working method thereof and display device Download PDFInfo
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Abstract
The invention provides an image senor, a working method thereof and a display device for solving the problem that the storage cost of the existing image sensor in the follow-up data processing is higher. The image sensor comprises a pixel array and a reading unit, wherein the pixel array is used for carrying out light sensation on an image and converting an optical signal of the image to an electrical signal, and the number of row pixel units in the pixel array is smaller than the number of column pixel units; and the reading unit is used for gating the pixel units of the pixel array and reading image information of the selected row pixel units by taking row as unit. Compared with the image sensor in the prior art, the data size of each row in the output image information of the image sensor according to the invention for the pixel array with a certain resolution is comparatively small, thereby greatly reducing the requirements of storage capacity of a buffer unit in the follow-up data processing and reducing the manufacturing and processing cost by using the buffer unit with the smaller capacity.
Description
Technical field
The present invention relates to the image sensing technical field, particularly a kind of imageing sensor and method of work thereof, and a kind of display unit.
Background technology
Imageing sensor is a kind of semiconductor device that light signal is converted to the signal of telecommunication.Imageing sensor is divided into two classes usually: and charge coupled device (Charger Coupled Device, CCD) and complementary metal oxide semiconductors (CMOS) (CMOS) imageing sensor.Ccd image sensor has that the noise of reading is low, dynamic range is big, the response sensitivity advantages of higher, but also more complicated of the power consumption height of ccd image sensor, manufacture craft is difficult to realize that the single-chip with peripheral circuit is integrated.
Cmos image sensor has adopted the CMOS technology identical with signal processing circuit, the signal processing circuit outside cmos image sensor and the transducer can be integrated on the same chip.Compare with ccd image sensor, cmos image sensor has advantages such as volume is little, low in energy consumption, production cost is low.Just therefore,, cmos image sensor is widely used in the field that various needs carry out opto-electronic conversion, for example in the electronic products such as digital camera, Digital Video, mobile phone.
According to the difference of imaging effect, cmos image sensor can be divided into color cmos image sensors and black and white cmos image sensor.Wherein, the black and white cmos image sensor is only responded to the Strength Changes of extraneous light, and is converted to the signal of telecommunication of respective strengths; (Color Filter Array CFA), can realize colour imaging and color cmos image sensors normally increases the color filter array on the basis of black and white image transducer.
In the color filter array, most widely used is Bayer territory color filter array (Bayer-CFA).Fig. 1 promptly shows the pel array schematic diagram that adopts Bayer territory color filter array.As shown in Figure 1, R represents that red pixel unit, G represent that green pixel unit, B represent the blue pixel unit, and entire pixel array is made of red pixel unit, green pixel unit and the blue pixel unit of arranged at regular intervals.Because people's vision is the most responsive to green, therefore, in this pel array, the density of green pixel unit is set to red pixel unit and blue pixel unit 2 times.For described Bayer territory color filter array, its each pixel cell only can form and include single image information of planting color component.If will obtain the image information of full color, need carry out the pixel interpolation computing to the image information of described pel array output, with other color components of completion, that is: based on specific algorithm, the image information of pixel cell surrounding pixel unit output is added on this pixel cell, and as the image information of this pixel cell.
Pixel interpolation method commonly used has that neighborhood pixels duplicates, twice linear interpolation, twice cube of method such as interpolation.The method difference of pixel interpolation, its algorithm when handling is also inequality, and the picture quality that finally obtains is also inequality.Usually, complicated interpolation algorithm can obtain the image of better quality, but need store more image information before processing, and cost is higher relatively.
On the other hand, along with the continuous development of image sensor chip manufacturing technology, its image resolution ratio is also more and more higher, is increased to 1,300,000 pixels from 300,000 pixels, again more than 3,000,000 even 5,000,000 pixels up till now.The lifting of image resolution ratio means the synchronous increase of data processing amount.But be subject to bus bandwidth, there is certain difficulty in the transmission of high-resolution image sensors output image information.In order to solve the data output problem of high-resolution image sensors, need compress processing to the image information of output usually, wherein most widely used is exactly JPEG (Joint Photographic Experts Group) compression.The JPEG encryption algorithm that the JPEG compression is adopted can reach 10 to 20 times compression efficiency, and this has solved the bottleneck problem of bus bandwidth well.
Yet for data processing such as the compression of described image information or pixel interpolations, it need can carry out based on the image information of some usually, and this must need to take a large amount of memory spaces and come store image information.With the benchmark jpeg algorithm is example, and its two-dimension discrete cosine transform that adopts is a kind of processing mode of block-by-block scanning.Fig. 2 shows the schematic diagram that block-by-block scanning is handled in the JPEG compression.As shown in Figure 2, image information compressed to handle with 8 * 8 matrix-blocks be that unit carries out, whenever carry out two-dimension discrete cosine transform one time, must obtain the image information of all pixel cells in one 8 * 8 matrix-block simultaneously.And the imageing sensor of prior art all adopts the line scanning mode to gather the image information of pel array, therefore, in the process that described JPEG compression is handled, need to store the two-dimension discrete cosine transform that could begin to carry out one 8 * 8 matrix-block after the image information of 8 row pixel cells at least.
As can be seen, for the imageing sensor of prior art, for the image information of its pel array output is carried out various data processing, need be in described imageing sensor the memory space of integrated enough capacity, this causes storage overhead huge.Particularly the capable resolution of high-resolution image sensors is more and more higher at present, and the carrying cost of the imageing sensor that brings thus also sharply increases.
Summary of the invention
As seen, it is very favourable that a kind of integrated cost imageing sensor lower, that storage overhead is less is provided, and particularly under the situation of compatible conventional images sensing technology, realizes that in comparatively easy mode required cost control is necessary.
In order to address the above problem, in an embodiment according to the present invention, a kind of imageing sensor is provided, wherein, comprise: pel array, be used for image sensitization, and the light signal of described image is converted to the signal of telecommunication, the quantity of the capable pixel cell of described pel array is less than the quantity of row pixel cell; Reading unit is used for the pixel cell of the described pel array of gating, reads the image information of selected line pixel cell with behavior unit.
Preferably, described imageing sensor also comprises: buffer unit, be used to obtain delegation or the multirow image information that reading unit provides, and with up-to-date described delegation that obtains of behavior unit's buffer memory or multirow image information; Data processing unit is used for described buffer unit image information cached is carried out data processing, and will be through the image information output of described data processing.
Further preferably, described data processing unit includes one or more data processing subelements, and described data processing subelement is respectively applied for described image information is carried out in handling one or more of pixel interpolation processing, Filtering Processing, color correction process or compression.
Correspondingly, in an embodiment according to the present invention, also provide a kind of method of work of imageing sensor, wherein, comprise: adopt pel array to image sensitization, the light signal of image is converted to the signal of telecommunication, the quantity of the capable pixel cell of described pel array is less than the quantity of row pixel cell; Obtain the signal of telecommunication of image described in the described pel array with the line scanning sample mode, obtain image information.
Preferably, described method also comprises: obtain delegation or multirow image information, and with up-to-date described delegation that obtains of behavior unit's buffer memory or multirow image information; Described image information to described buffer memory is carried out data processing, and will be through the image information output of described data processing.
In according to another embodiment of the present invention, a kind of display unit is provided, comprise imageing sensor and display unit, the quantity of the capable pixel cell of pel array is less than the quantity of row pixel cell in the described imageing sensor, described display unit, the image information that the described imageing sensor that is used to reduce forms, the width of its array of display vertical direction is greater than the width of horizontal direction; Wherein, the direction of the longer sides of described image sensor pixel array parallels with the direction of the longer sides of described display unit array of display.
Above characteristic of the present invention and other characteristics are partly set forth embodiment hereinafter clearly.
Description of drawings
Read following detailed description by the reference accompanying drawing, can more easily understand features, objects and advantages of the invention non-limiting example.Wherein, same or analogous Reference numeral is represented same or analogous device.
Fig. 1 is the pel array schematic diagram that adopts Bayer territory color filter array;
Fig. 2 is the schematic diagram that block-by-block scanning is handled in the JPEG compression;
Fig. 3 shows according to the first embodiment of the present invention, the module diagram of imageing sensor;
Fig. 4 shows according to the first embodiment of the present invention, the flow process of the method for work of imageing sensor;
Fig. 5 shows according to a second embodiment of the present invention, the module diagram of imageing sensor;
Fig. 6 shows a third embodiment in accordance with the invention, the module diagram of imageing sensor;
Fig. 7 shows according to a second embodiment of the present invention and the 3rd embodiment, the flow process of the method for work of imageing sensor;
Fig. 8 shows the work schematic diagram of the display unit that adopts the prior art imageing sensor;
Fig. 9 shows a fourth embodiment in accordance with the invention, the work schematic diagram of display unit.
Embodiment
Describe the present invention below in conjunction with accompanying drawing.
Fig. 3 shows according to the first embodiment of the present invention, the module diagram of imageing sensor.As shown in Figure 3, described imageing sensor comprises pel array 301 and reading unit 303, wherein:
Described pel array 301 is used for image sensitization, and the light signal of described image is converted to the signal of telecommunication, and the quantity of the capable pixel cell of described pel array 301 is less than the quantity of row pixel cell;
Described reading unit 303 is used for the pixel cell of gating pel array 301, reads the image information of selected line pixel cell with behavior unit.
In the present embodiment, described pel array 301 is the rectangular array structure, and the described circuit 303 of reading adopts and lines by line scan or sampling that interleaved mode is carried out the signal of telecommunication is read.Wherein, described row is the least unit in the imageing sensor exposure.For described pel array 301, described capable pixel cell promptly be meant in the described rectangular array structure corresponding to line by line scan or interleaved direction of line scan on one group of pixel cell; And described row pixel cell is meant in the described rectangular array structure one group of pixel cell perpendicular to described direction of line scan.
Difference according to specific embodiment, described pel array 301 can be the cmos pixel array that has the color filter array, also can be the cmos pixel array that does not have the color filter array, perhaps can also be the CCD pel array, for example 3CCD prismatic decomposition formula pel array.
In a preferred embodiment, described reading unit 303 comprises capable gating unit 305, column selection logical unit 307, buffer memory capacitance group 309 and AD conversion unit 311, and wherein: described capable gating unit 305 is used for the pixel cell of delegation at least of the described pel array 301 of gating; The logical unit 307 of described column selection is used for the signal of telecommunication of gating pel array 301 and buffer memory capacitance group 309 at least one row, is matched with capable gating unit 305, finishes the sampling to the pixel cell signal of telecommunication in the described pel array 301; Described buffer memory capacitance group 309 comprises a plurality of electric capacity corresponding with each row pixel cell of pel array 301, described a plurality of electric capacity is respectively applied for storage by the signal of telecommunication of respective column in the pixel cell of delegation at least of gating, and the quantity of described electric capacity equates with the quantity of the capable pixel cell of pel array 301; Described AD conversion unit 311 is used for the signal of telecommunication that leads to the pixel cell of 307 gatings in unit by described capable gating unit 305 and column selection is carried out analog-to-digital conversion, obtains the image information of digital signal form.
For pel array with a certain resolution, VGA level for example, in the imageing sensor of prior art, quantity of its row pixel cell is 640, and the quantity of row pixel cell is 480; And in imageing sensor of the present invention, its row pixel cell quantity is less than the quantity of row pixel cell, and pixel cell quantity is 480 at once, and the quantity of row pixel cell is 640.Comparatively speaking, the pixel cell that every row comprises in the image sensor pixel array 301 of the present invention is less, and described reading unit 303 reads described image information with behavior unit, therefore the circuit complexity of reading unit can reduce, for example the quantity of electric capacity is reduced in the buffer memory capacitance group 309, and then has reduced the cost of imageing sensor.Simultaneously, because described reading unit 303 offers the image information of follow-up data treatment circuit also with behavior unit, less relatively by each data volume of going of image information that described reading unit 303 forms and exports, storage and intractability that this can reduce the follow-up data treatment circuit help reducing processing cost.
Fig. 4 shows according to the first embodiment of the present invention, the flow process of imageing sensor method of work.As shown in Figure 4, described method of work comprises:
In step S402, imageing sensor to image sensitization, is converted to the signal of telecommunication with the light signal of image by pel array, and wherein, the quantity of the capable pixel cell of described pel array is less than the quantity of row pixel cell.
External image light intensity difference, photodiode forms in the described pel array electric current or electric charge corresponding to described image light signal are also inequality.Need to prove that described electric current or charge value can be based on the differences of pel array sensitive time and changed, therefore, in actual applications, each pixel cell of described pel array generally carries out sensitization with the identical time for exposure to external image.Wherein, described row is the least unit in the imageing sensor exposure.
Then, in step S404, obtain the signal of telecommunication of image described in the described pel array, obtain image information with the line scanning sample mode.So-called line scanning sample mode is meant that the sampling of the image signal of telecommunication in the described pel array is carried out with behavior unit, the pixel cell of every row at synchronization by row gating unit gating.For a row pixel cell of pel array, a pixel cell is only arranged by gating at synchronization.As optional execution mode, described pel array sampled to read to adopt progressive scan mode or interlace mode.
In a preferred embodiment, described step S404 further comprises:
One-row pixels unit in the row gating unit gating pel array; It is described by the signal of telecommunication of the one-row pixels unit of row gating unit gating that buffer unit is pressed the row buffer memory; Then, the electric capacity in the logical unit of the column selection gating buffer memory capacitance group reads the wherein signal of telecommunication corresponding to pixel cell of storage.Because the signal of telecommunication in the described buffer memory capacitance group is stored with analog signal form, therefore, by column selection logical unit selected and read the described signal of telecommunication after, be converted into digital signal by AD conversion unit, thereby obtain being convenient to the image information that the follow-up data treatment circuit is handled.
Fig. 5 shows according to a second embodiment of the present invention, the module diagram of imageing sensor.As shown in Figure 5, described imageing sensor comprises pel array 501, reading unit 503, buffer unit 505 and data processing unit 507, wherein:
Described pel array 501 is used for image sensitization, and the light signal of described image is converted to the signal of telecommunication, and the quantity of the capable pixel cell of described pel array 501 is less than the quantity of row pixel cell;
Described reading unit 503 is used for the pixel cell of gating pel array 501, reads the image information of selected line pixel cell with behavior unit;
Described buffer unit 505 is used to obtain delegation or the multirow image information that reading unit 503 provides, and with up-to-date described delegation that obtains of behavior unit's buffer memory or multirow image information;
Described data processing unit 507 is used for described buffer unit 505 image information cached are carried out data processing, and will be through the image information output of data processing.
Difference according to specific embodiment, described data processing unit 507 can include one or more data processing subelements, and described data processing subelement is respectively applied for and described image information is carried out in the data processing such as pixel interpolation processing, Filtering Processing, color correction process or compression processing one or more.Wherein, a plurality of data processing subelements in the described data processing unit 507 adopt mode connected in series, that is, image information is made further data processing by another data processing subelement again after being carried out corresponding data processing by a data processing subelement.Need to prove that above-mentioned data processing method is an example only, the present invention is not limited to this, and for example data processing such as noise reduction process is within protection scope of the present invention too, does not repeat them here.
In the present embodiment, described pel array 501 adopts Bayer territory single channel structure, need carry out pixel interpolation to described image information and handle.Described data processing unit 507 includes the first data processing subelement, is used for that the image information that described reading unit 503 provides is carried out pixel interpolation and handles and Filtering Processing.In the described buffer unit 505 then the described pixel interpolation of respective cache handle and the required image information of Filtering Processing.
In actual applications, in order to improve the quality behind the image restoring, described pixel interpolation is handled and is for example adopted that neighborhood pixels duplicates, twice linear interpolation, twice cube of two-dimentional interpolation algorithm such as interpolation.And these pixel interpolation Processing Algorithm need be carried out based on the multirow image information of predetermined quantity, and therefore, described buffer unit 505 also needs to have the storage capacity that is suitable for the capable image information of described predetermined quantity.In addition, for Filtering Processing, the Filtering Processing of window two dimension, big has filter effect preferably, and therefore, usually, described Filtering Processing also needs to adopt two-dimentional algorithm, needs buffer unit 505 to have the storage capacity of storage multirow image information.
And in imageing sensor of the present invention, less relatively by each data volume of going of image information that reading unit 503 forms and exports for the pel array with a certain resolution, this just greatly reduces the requirement to described buffer unit 505 memory capacity.Therefore, for imageing sensor of the present invention, it can use the less buffer unit of capacity 505, and cost of manufacture greatly reduces.
Fig. 6 shows a third embodiment in accordance with the invention, the module diagram of imageing sensor.
As shown in Figure 6, described imageing sensor comprises pel array 601, reading unit 603, second buffer unit 605, the 3rd buffer unit 607, the second data processing subelement 609 and the 3rd data processing subelement 611, wherein:
Described pel array 601 is used for image sensitization, and the light signal of described image is converted to the signal of telecommunication, and the quantity of the capable pixel cell of described pel array 601 is less than the quantity of row pixel cell;
Described reading unit 603 is used for the pixel cell of gating pel array 601, reads the image information of selected line pixel cell with behavior unit;
Described second buffer unit 605 is used to obtain delegation or the multirow image information that described reading unit 603 provides, and with up-to-date described delegation that obtains of behavior unit's buffer memory or multirow image information;
The described second data processing subelement 609 is used for described second buffer unit, 605 image information cached are carried out Filtering Processing, and will offers the 3rd buffer unit 607 through the image information of described Filtering Processing;
Described the 3rd buffer unit 607 is used to obtain delegation or the multirow image information that the described second data processing subelement 609 provides, and with up-to-date described delegation that obtains of behavior unit's buffer memory or multirow image information;
Described the 3rd data processing subelement 611 is used for described the 3rd buffer unit 607 image information cached are compressed processing, and will export through the image information that described compression is handled.
Described second data processing subelement 609 and the 3rd data processing subelement 611 have constituted the data processing unit of imageing sensor jointly.
As aforementioned, the second data processing subelement 609 that is used to carry out Filtering Processing requires second buffer unit 605 to have the ability of storage multirow image information usually.In addition, in the present embodiment, described data processing subelement 611 adopts the two dimensional compaction algorithm that image information is compressed processing, for example benchmark jpeg algorithm or expansion jpeg algorithm.And the ability that also requires the 3rd buffer unit 607 to have storage multirow image information is handled in the compression of described JPEG encryption algorithm.Yet, in imageing sensor of the present invention, for pel array 601 with a certain resolution, less relatively by each data volume of going of image information that reading unit 603 forms and exports, this just greatly reduces the requirement to described second buffer unit 605 and the 3rd buffer unit 607 memory capacity, thereby has reduced the cost of buffer unit.
Fig. 7 shows according to a second embodiment of the present invention and the 3rd embodiment, the flow process of the method for work of imageing sensor.As shown in Figure 7, described method of work comprises:
In step S702, imageing sensor to image sensitization, is converted to the signal of telecommunication with the light signal of image by pel array, and wherein, the quantity of the capable pixel cell of described pel array is less than the quantity of row pixel cell.
In step S704, obtain the signal of telecommunication of image described in the described pel array with the line scanning sample mode, obtain image information.
In step S706, obtain the described image information of delegation or multirow, and with up-to-date described delegation that obtains of behavior unit's buffer memory or multirow image information.
In step S708, the described image information of described buffer memory is carried out data processing, and will be through the image information output of described data processing.
According to the difference of specific embodiment, described image information is carried out data processing comprise in handling one or more of pixel interpolation processing, Filtering Processing, color correction process or compression.In a preferred embodiment,, described image information can be cached in the different buffer units, perhaps described image information can also be cached in the different memory locations of same buffer unit for different data processing.In another preferred embodiment, described compression is handled and is adopted the two dimensional compaction algorithm, for example benchmark jpeg algorithm or expansion jpeg algorithm.
As above stated specification, in actual applications, in order to improve the quality of image after the data processing, described pixel interpolation is handled with data processing such as Filtering Processing and is adopted two-dimentional algorithm usually, needs buffer memory multirow image information.And since the quantity of the capable pixel cell of image sensor pixel array of the present invention less than the quantity of row pixel cell, less relatively by each data volume of going of image information that reading unit forms and exports, the requirement that this just greatly reduces buffer unit memory capacity effectively reduces processing cost.
In specific embodiment, through the image information after the described data processing, can be stored in the memory device that couples mutually with described imageing sensor, for example hard disk, flash memory etc., also can send, for example offer display device, and described image information is restored by described display device.
In actual applications, increasing electronic product (for example mobile phone, movable video-audio equipment etc.) can be integrated with imageing sensor and display unit simultaneously.Wherein, described imageing sensor is used to gather image and forms image information, and described display unit is used to reduce the image information that described imageing sensor is gathered.
Common, including array of display in the described display unit, described array of display is used for the image information of the signal of telecommunication is converted to the visual image of light signal form.The display unit that described array of display is alternately arranged by the rule that is similar to image sensor pixel array is formed, and each row of described array of display and each are listed as the display unit that all includes some.Transmit with behavior unit by the image information that imageing sensor provides, therefore, for described display unit, the mode of its displays image information is normally line scanning mode also, promptly with behavior unit the image information that receives is presented in its array of display successively.
Row pixel cell quantity is more than row pixel cell quantity in the conventional image sensor pel array, and under normal operating position, the direction of row normally parallels with horizontal direction in the described pel array, and this causes its horizontal direction width of gathering the image that forms greater than the vertical direction width.And in a lot of application scenarios, the horizontal direction width of display unit array of display is less than the vertical direction width, for example the display screen in the mobile communication terminal such as mobile phone.In this case, described display unit is in reduction during described image, and the image that the imageing sensor collection can be formed is presented in the display unit after in original image ratio scaled down.Promptly as shown in Figure 8, after the display unit reduction, the image level direction width that described imageing sensor forms is identical with array of display horizontal direction width in the display unit, but the width of vertical direction is much smaller than the width of display unit vertical direction, near the display unit vertical direction two ends part can't make full use of, and this can influence the reduction effect of image undoubtedly.
By the present invention, the pixel cell quantity of image sensor pixel array is less than row pixel cell quantity, makes the width of described pel array horizontal direction also less than the width of vertical direction.Like this, the horizontal direction width of the image that forms by described pel array collection is also just less than the width of vertical direction.Fig. 9 promptly shows a fourth embodiment in accordance with the invention, the work schematic diagram of display unit.As shown in Figure 9, when described image is reduced by array of display, because less than the width of vertical direction, this makes near the part the display unit vertical direction two ends to make full use of to the width of array of display horizontal direction equally, thereby has improved the reduction effect of image greatly.
A fourth embodiment in accordance with the invention, described display unit comprises imageing sensor and display unit, the quantity of the capable pixel cell of pel array is less than the quantity of row pixel cell in the described imageing sensor, described display unit, the image information that the described imageing sensor that is used to reduce forms, the width of its array of display vertical direction is greater than the width of horizontal direction; Wherein, the direction of the longer sides of described image sensor pixel array parallels with the direction of the longer sides of described display unit array of display.
Further preferred, described pel array can have identical length-width ratio with array of display, and for example, the length-width ratio of described pel array is 4: 3, and then the length-width ratio of described array of display also is 4: 3.In this case, array of display can reduce the image that the pel array collection forms with optimum efficiency.
According to the difference of concrete application, described display unit can be used to be arranged on products such as mobile communication terminal, e-book or digital code player.
More than specific embodiments of the invention are described.It will be appreciated that the present invention is not limited to above-mentioned specific implementations, those skilled in the art can make various distortion or modification within the scope of the appended claims.
Claims (12)
1. imageing sensor wherein, comprising:
Pel array is used for image sensitization, and the light signal of described image is converted to the signal of telecommunication, and the quantity of the capable pixel cell of described pel array is less than the quantity of row pixel cell;
Reading unit is used for the pixel cell of the described pel array of gating, reads the image information of selected line pixel cell with behavior unit.
2. imageing sensor according to claim 1 is characterized in that, described imageing sensor also comprises:
Buffer unit is used to obtain delegation or the multirow image information that reading unit provides, and with up-to-date described delegation that obtains of behavior unit's buffer memory or multirow image information;
Data processing unit is used for described buffer unit image information cached is carried out data processing, and will be through the image information output of described data processing.
3. imageing sensor according to claim 2, it is characterized in that, described data processing unit includes one or more data processing subelements, and described data processing subelement is respectively applied for described image information is carried out in handling one or more of pixel interpolation processing, Filtering Processing, color correction process or compression.
4. imageing sensor according to claim 1 is characterized in that, described row is the least unit in the described imageing sensor exposure.
5. a display unit is characterized in that, comprising:
According to each described imageing sensor in the claim 1 to 4;
Described display unit, the image information that the described imageing sensor that is used to reduce forms, the width of its array of display vertical direction is greater than the width of horizontal direction;
Wherein, the direction of the longer sides of described image sensor pixel array parallels with the direction of the longer sides of described display unit array of display.
6. device according to claim 5 is characterized in that described display unit is used to be arranged at mobile communication terminal, e-book or digital code player.
7. the method for work of an imageing sensor wherein, comprising:
A. adopt pel array to image sensitization, the light signal of image is converted to the signal of telecommunication, the quantity of the capable pixel cell of described pel array is less than the quantity of row pixel cell;
B. obtain the signal of telecommunication of image described in the described pel array with the line scanning sample mode, obtain image information.
8. method according to claim 1 is characterized in that, described row is the least unit in the described imageing sensor exposure.
9. method according to claim 7 is characterized in that, described method also comprises:
C. obtain delegation or multirow image information, and with up-to-date described delegation that obtains of behavior unit's buffer memory or multirow image information;
D. the described image information of described buffer memory is carried out data processing, and will be through the image information output of described data processing.
10. method according to claim 9 is characterized in that, described image information is carried out data processing comprise in handling one or more of pixel interpolation processing, Filtering Processing, color correction process or compression.
11. method according to claim 10 is characterized in that, for different data processing, described image information is cached in the different buffer units.
12., it is characterized in that after described steps d, described method also comprises storage and/or sends described image information through data processing according to each described method in the claim 9 to 11.
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| CN102572327A (en) * | 2012-02-24 | 2012-07-11 | 北京思比科微电子技术股份有限公司 | Image sensor with sampling control function and sampling method |
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| CN105472388A (en) * | 2015-12-08 | 2016-04-06 | 浙江大华技术股份有限公司 | Color filter array image encoding-decoding method, device and system |
| CN107505980A (en) * | 2017-08-16 | 2017-12-22 | 江苏集萃有机光电技术研究所有限公司 | Display screen and electronic equipment |
| CN109688314A (en) * | 2019-02-19 | 2019-04-26 | 福州视驰科技有限公司 | The camera system and method that low delay caches less and the data way of output is controllable |
| US11019365B2 (en) | 2015-07-30 | 2021-05-25 | Zhejiang Dahua Technology Co., Ltd. | Methods and systems for image compression |
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| CN104270585A (en) * | 2014-10-17 | 2015-01-07 | 中国电子科技集团公司第四十四研究所 | CMOS image sensor data read-write control method |
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