CN106534822A - Control method, control device, and electronic device - Google Patents

Control method, control device, and electronic device Download PDF

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Publication number
CN106534822A
CN106534822A CN201611079139.5A CN201611079139A CN106534822A CN 106534822 A CN106534822 A CN 106534822A CN 201611079139 A CN201611079139 A CN 201611079139A CN 106534822 A CN106534822 A CN 106534822A
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China
Prior art keywords
pixel
image
unit
merging
original
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CN201611079139.5A
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CN106534822B (en
Inventor
韦怡
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
    • H04N25/41—Extracting pixel data from a plurality of image sensors simultaneously picking up an image, e.g. for increasing the field of view by combining the outputs of a plurality of sensors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/40—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
    • H04N25/44—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array
    • H04N25/447—Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array by preserving the colour pattern with or without loss of information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

The invention discloses a control method of an electronic device. The method comprises steps of: firstly, controlling an image sensor to output the combined image and the color block image of the same scene; secondly, converting the color block image into an imitated original image and converting the imitated original image into an imitated original true color image; Then, converting the combined image into a combined true color image; next, determining whether or not the remaining capacity of the memory is less than or equal to a predetermined threshold; and finally, if yes, saving the combined true color image or the imitated original true color image according to the image parameters, and saving the combined true color image and the imitated original true color image if not. In addition, the present invention also discloses a control device and an electronic device. The control method, the control device and the electronic device according to the invention save the combined true color image and/or the imitated original true color image according to the capacity of the memory and the image parameters so as to avoid blindness of fixedly saving one of the images or simultaneously saving the two images, thereby improving customer satisfaction.

Description

Control method, control device and electronic installation
Technical field
The present invention relates to imaging technique, more particularly to a kind of control method, control device and electronic installation.
Background technology
A kind of existing imageing sensor includes sensitive pixel elements array and is arranged on sensitive pixel elements array Filter unit array, each filter unit array cover one sensitive pixel elements of correspondence, each sensitive pixel elements bag Include multiple photosensitive pixels.During work, image sensor exposure output can be controlled and merge image, be merged image and can pass through image Processing method changes into merging rgb image and preserves.Merging image includes merging pel array, same photosensitive pixel list Multiple photosensitive pixels of unit merge output as corresponding merging pixel.Thus, the signal to noise ratio for merging image can be improved, so And, the resolution for merging image is reduced.It is of course also possible to control the patch image that image sensor exposure exports high pixel, color Block image includes original pixel array, each photosensitive pixel one original pixels of correspondence.However, due to same filter unit pair The multiple original pixels colors answered are identical, cannot equally improve the resolution of patch image.Accordingly, it would be desirable to pass through interpolation calculation High pixel patch image is changed into mode the imitative original image of high pixel, and imitative original image can include imitative in Bel's array arrangement Original pixel.Imitative original image can change into imitative original rgb image by image processing method and preserve.In actual applications, Respective advantage is respectively present due to merging rgb image and imitating original rgb image, is preserved at random or fixed selection is preserved wherein A kind of image may choose a kind of ropy image, and two kinds of images are all preserved and can waste hardware resource.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.For this purpose, the present invention needs offer one Plant control method, control device and electronic installation.
A kind of control method, for controlling electronic installation, the electronic installation includes imaging device and memorizer, it is described into As device includes imageing sensor, described image sensor includes sensitive pixel elements array and is arranged on the photosensitive pixel list Filter unit array on element array, each described filter unit array cover one sensitive pixel elements of correspondence, Each described sensitive pixel elements includes multiple photosensitive pixels, and the control method is comprised the following steps：
The merging image and patch image of control described image sensor output Same Scene, the merging image include closing And pel array, multiple photosensitive pixels merging outputs of the same sensitive pixel elements are used as a merging pixel, institute Stating patch image includes the image pixel elements of predetermined array arrangement, and described image pixel cell includes multiple original pixels, often One original pixels of the individual photosensitive pixel correspondence；
The patch image is changed into into imitative original image, the imitative original image includes the imitative original pixel of array arrangement, described Imitative original pixel includes current pixel, and the original pixels include associated pixel corresponding with the current pixel, it is described will be described The step of patch image changes into the imitative original image comprises the following steps：
Judge whether the color of the current pixel is identical with the color of the associated pixel；
When the color of the current pixel is identical with the color of the associated pixel, by the pixel value of the associated pixel As the pixel value of the current pixel；With
When the color of the current pixel is different from the color of the associated pixel, according to the pixel of associated pixel unit Value calculates the pixel value of the current pixel by the first interpolation algorithm, and described image pixel cell includes the associated pixel list Unit, the color of the associated pixel unit are identical with the current pixel and adjacent with the current pixel；
The merging image is changed into into merging rgb image；
The imitative original image is changed into into imitative original rgb image；
Judge the residual capacity of the memorizer whether less than or equal to predetermined threshold；
When the residual capacity is less than or equal to the predetermined threshold, according to the merging rgb image and the imitative original The image parameter of rgb image selects to preserve the merging rgb image or the imitative former rgb image to the memorizer；With
When the residual capacity is more than the predetermined threshold, the merging rgb image and the imitative former true coloured picture are preserved Picture.
In some embodiments, the predetermined array includes Bel's array.
In some embodiments, described image pixel cell includes the original pixels of 2*2 arrays.
In some embodiments, the pixel value according to associated pixel unit is by described in the calculating of the first interpolation algorithm The step of pixel value of current pixel, comprises the following steps：
Calculate the gradual change amount in the associated pixel all directions；
Calculate the weight in the associated pixel all directions；With
According to the gradual change amount and current pixel described in the weight calculation pixel value.
In some embodiments, the control method is inserted by first in the pixel value according to associated pixel unit Comprise the following steps before the step of value-based algorithm calculates the pixel value of the current pixel：
White balance compensation is done to the patch image；
The control method is in the pixel value according to associated pixel unit by working as described in the calculating of the first interpolation algorithm Comprise the following steps after the step of pixel value of preceding pixel：
White balance compensation reduction is done to the imitative original image.
In some embodiments, the control method is inserted by first in the pixel value according to associated pixel unit Comprise the following steps before the step of value-based algorithm calculates the pixel value of the current pixel：
Compensating bad point is done to the patch image.
In some embodiments, the control method is inserted by first in the pixel value according to associated pixel unit Comprise the following steps before the step of value-based algorithm calculates the pixel value of the current pixel：
Crosstalk compensation is done to the patch image.
In some embodiments, the control method is inserted by first in the pixel value according to associated pixel unit Comprise the steps after the step of value-based algorithm calculates the pixel value of the current pixel：
Carry out lens shape correction, demosaicing, noise reduction and edge sharpening to process to the imitative original image.
In some embodiments, described change into the merging image includes following step at the step of merging rgb image Suddenly：
Using the second interpolation algorithm by the merging image change into it is corresponding with the imitative original image go back original image, it is described The complexity of the second interpolation algorithm is less than first interpolation algorithm；With
The original image of going back is changed into into the merging rgb image.
A kind of control device, for controlling electronic installation, the electronic installation includes imaging device and memorizer, it is described into As device includes imageing sensor, described image sensor includes sensitive pixel elements array and is arranged on the photosensitive pixel list Filter unit array on element array, each described filter unit array cover one sensitive pixel elements of correspondence, Each described sensitive pixel elements includes multiple photosensitive pixels, and the control device includes the first control module, the first conversion mould Block, the second conversion module, the 3rd conversion module, judge module, the first preserving module and the second preserving module.
First control module is used for the merging image and color lump figure for controlling described image sensor output Same Scene Picture, the merging image include merging pel array, and multiple photosensitive pixels of the same sensitive pixel elements merge output and make For a merging pixel, the patch image includes the image pixel elements of predetermined array arrangement, described image pixel list Unit includes multiple original pixels, each one described original pixels of the photosensitive pixel correspondence.
For the patch image is changed into imitative original image, the imitative original image includes array to first conversion module The imitative original pixel of arrangement, the imitative original pixel include current pixel, and the original pixels include corresponding with the current pixel Associated pixel, first conversion module include judging unit, the first computing unit and the second computing unit.
The judging unit is used to judge whether the color of the current pixel is identical with the color of the associated pixel.
First computing unit for the color in the current pixel it is identical with the color of the associated pixel when, will Pixel value of the pixel value of the associated pixel as the current pixel.
Second computing unit for the color in the current pixel it is different from the color of the associated pixel when, root The pixel value of the current pixel, described image pixel list are calculated by the first interpolation algorithm according to the pixel value of associated pixel unit Unit includes the associated pixel unit, the color of the associated pixel unit it is identical with the current pixel and with the current picture Element is adjacent.
Second conversion module for by it is described merging image change into merging rgb image.
3rd conversion module imitates original rgb image for the imitative original image is changed into.
Whether the judge module is used for the residual capacity for judging the memorizer less than or equal to predetermined threshold.
First preserving module for the residual capacity be less than or equal to the predetermined threshold when, according to the conjunction And the image parameter of rgb image and the imitative former rgb image selects to preserve the merging rgb image or described imitative former very color Image is to the memorizer.
Second preserving module is for when the residual capacity is more than the predetermined threshold, the preservation merging is very color Image and the imitative former rgb image.
In some embodiments, the predetermined array includes Bel's array.
In some embodiments, described image pixel cell includes the original pixels of 2*2 arrays.
In some embodiments, second computing unit include the first computation subunit, the second computation subunit and 3rd computation subunit.
First computation subunit is used to calculate the gradual change amount in the associated pixel all directions.
Second computation subunit is used to calculate the weight in the associated pixel all directions.
3rd computation subunit for according to the gradual change amount and current pixel described in the weight calculation pixel Value.
In some embodiments, first conversion module includes that white balance compensation unit and white balance compensation reduction are single Unit.
The white balance compensation unit is for doing white balance compensation to the patch image.
The white balance compensation reduction unit is reduced for white balance compensation is done to the imitative original image.
In some embodiments, first conversion module includes compensating bad point unit.
The compensating bad point unit is for doing compensating bad point to the patch image.
In some embodiments, first conversion module includes crosstalk compensation unit.
The crosstalk compensation unit is for doing crosstalk compensation to the patch image.
In some embodiments, first conversion module includes processing unit.
The processing unit is sharp for carrying out lens shape correction, demosaicing, noise reduction and edge to the imitative original image Change is processed.
In some embodiments, second conversion module includes the first conversion unit and the second conversion unit.
First conversion unit for using the second interpolation algorithm by it is described merging image change into and the imitative artwork Original image is gone back as corresponding, the complexity of second interpolation algorithm is less than first interpolation algorithm；With
Second conversion unit is for changing into the merging rgb image by the original image of going back.
A kind of electronic installation includes imaging device, memorizer and the control device.
In some embodiments, the electronic installation includes mobile phone or panel computer.
In some embodiments, the imaging device includes Front camera or rearmounted camera.
The control method of the present invention, control device and electronic installation are preserved according to the capacity and image parameter of memorizer and are merged Rgb image and/or imitative original rgb image, it is to avoid fixed to preserve one of which image or while preserve that two kinds of images bring is blind Mesh, improves user satisfaction.
The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will become from the following description Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment Substantially with it is easy to understand, wherein：
Fig. 1 is the schematic flow sheet of the control method of embodiment of the present invention.
Fig. 2 is another schematic flow sheet of the control method of embodiment of the present invention.
Fig. 3 is the high-level schematic functional block diagram of the control device of embodiment of the present invention.
Fig. 4 is the high-level schematic functional block diagram of the first conversion module of embodiment of the present invention.
Fig. 5 is the high-level schematic functional block diagram of the electronic installation of embodiment of the present invention.
Fig. 6 is the module diagram of the imageing sensor of embodiment of the present invention.
Fig. 7 is the circuit diagram of the imageing sensor of embodiment of the present invention.
Fig. 8 is the schematic diagram of the filter unit of embodiment of the present invention
Fig. 9 is the structural representation of the imageing sensor of embodiment of the present invention.
Figure 10 is the merging image state schematic diagram of embodiment of the present invention.
Figure 11 is the view of the patch image of embodiment of the present invention.
Figure 12 is the view of the control method of embodiment of the present invention.
Figure 13 is the schematic flow sheet of the control method of some embodiments of the invention.
Figure 14 is the high-level schematic functional block diagram of the second computing unit of some embodiments of the invention.
Figure 15 is the schematic flow sheet of the control method of some embodiments of the invention.
Figure 16 is the high-level schematic functional block diagram of the first conversion module of some embodiments of the invention.
Figure 17 is the image pixel elements schematic diagram of the patch image of some embodiments of the invention.
Figure 18 is the schematic flow sheet of the control method of some embodiments of the invention.
Figure 19 is the high-level schematic functional block diagram of the first conversion module of some embodiments of the invention.
Figure 20 is the schematic flow sheet of the control method of some embodiments of the invention.
Figure 21 is the high-level schematic functional block diagram of the second conversion module of some embodiments of the invention.
Main element symbol description：
Electronic installation 1000, imaging device 100, imageing sensor 10, sensitive pixel elements array 12, sensitive pixel elements 12a, photosensitive pixel subelement 120, photosensitive pixel 122, sensor devices 1222, transfer tube 1224, source follower 124, modulus Transducer 126, adder 128, filter unit array 14, filter unit 14a, control device 200, the first control module 210th, the first conversion module 220, the second conversion module 230, the 3rd conversion module 240, judge module 250, the first preserving module 260th, the second preserving module 270, judging unit 221, the first computing unit 222, the second computing unit 223, first calculate son list First 2232, second computation subunit 2234, the 3rd computation subunit 2236, the reduction of white balance compensation unit 224, white balance compensation Unit 225, compensating bad point unit 226, crosstalk compensation unit 227, processing unit 228, the first conversion unit 232, second are converted Unit 234.
Specific embodiment
Embodiments of the present invention are described below in detail, the embodiment of the embodiment is shown in the drawings, wherein Same or similar label represents same or similar element or the element with same or like function from start to finish.Lead to below It is exemplary to cross the embodiment being described with reference to the drawings, and is only used for explaining the present invention, and it is not intended that to limit of the invention System.
Refer to Fig. 1, the control method of embodiment of the present invention, for controlling electronic installation 1000, electronic installation 1000 Including imaging device 100 and memorizer, imaging device 100 includes imageing sensor 10, and imageing sensor 10 includes photosensitive pixel Cell array 12 and the filter unit array 14 being arranged on sensitive pixel elements array 12, each filter unit array 14 One sensitive pixel elements 12a of correspondence is covered, each sensitive pixel elements 12a includes multiple photosensitive pixels 122, control method bag Include following steps：
S210：The merging image and patch image of control imageing sensor output Same Scene, merging image includes merging Pel array, multiple photosensitive pixels of same sensitive pixel elements merge output as a merging pixel, and patch image includes The image pixel elements of predetermined array arrangement, image pixel elements include multiple original pixels, each photosensitive pixel correspondence one Original pixels；
S220：Patch image is changed into into imitative original image, imitative original image includes the imitative original pixel of array arrangement, imitate original pixel Including current pixel, original pixels include associated pixel corresponding with current pixel；
S230：Image will be merged and change into merging rgb image；
S240：Imitative original image is changed into into imitative original rgb image；
S250：Judge the residual capacity of memorizer whether less than or equal to predetermined threshold；
S260：When residual capacity is less than or equal to predetermined threshold, according to merging rgb image and imitative original rgb image Image parameter is selected to preserve and merges rgb image or imitative original rgb image to memorizer；With
S270：When residual capacity is more than predetermined threshold, preserves and merge rgb image and imitative original rgb image.
Fig. 2 is referred to, in some embodiments, step S220 is comprised the following steps：
S221：Judge whether the color of current pixel is identical with the color of associated pixel；
S222：In the color of current pixel and the identical color of associated pixel, using the pixel value of associated pixel as work as The pixel value of preceding pixel；With
S223：In the color of current pixel and the different color of associated pixel, according to the pixel value of associated pixel unit The pixel value of current pixel is calculated by the first interpolation algorithm, image pixel elements include associated pixel unit, associated pixel list The color of unit is identical with current pixel and adjacent with current pixel.
Refer to Fig. 3 and Fig. 4, the control device 200 of embodiment of the present invention, for controlling electronic installation 1000, electronics Device 1000 includes imaging device 100 and memorizer, and imaging device 100 includes imageing sensor 10, and imageing sensor 10 includes Sensitive pixel elements array 12 and the filter unit array 14 being arranged on sensitive pixel elements array 12, each optical filter list Element array 14 covers one sensitive pixel elements 12a of correspondence, and each sensitive pixel elements 12a includes multiple photosensitive pixels 122, controls Device processed 200 include the first control module 210, the first conversion module 220, the second conversion module 230, the 3rd conversion module 240, Judge module 250, the first preserving module 260, the second preserving module 270.First control module 210 is used to control imageing sensor The merging image and patch image of 10 output Same Scenes, merging image includes merging pel array, same sensitive pixel elements Multiple photosensitive pixels 122 of 12a merge output as a merging pixel, and patch image includes the image slices of predetermined array arrangement Plain unit, image pixel elements include multiple original pixels, each one original pixels of correspondence of photosensitive pixel 122.First conversion For patch image is changed into imitative original image, imitative original image includes the imitative original pixel of array arrangement to module 220, imitates original pixel bag Current pixel is included, original pixels include associated pixel corresponding with current pixel, and the first conversion module 220 includes judging unit 221st, the first computing unit 222 and the second computing unit 223.Judging unit 221 is used to judge the color of current pixel and associate Whether the color of pixel is identical.First computing unit 222 in the color of current pixel and the identical color of associated pixel, Using the pixel value of associated pixel as current pixel pixel value.Second computing unit 223 for the color in current pixel with When the color of associated pixel is different, the picture of current pixel is calculated according to the pixel value of associated pixel unit by the first interpolation algorithm Element value, image pixel elements include associated pixel unit, the color of associated pixel unit it is identical with current pixel and with current picture Element is adjacent.Second conversion module 230 changes into merging rgb image for will merge image.3rd conversion module 240 is used for will Imitative original image changes into imitative original rgb image.Judge module 250 is used to judge whether the residual capacity of memorizer is less than or equal to Predetermined threshold.First preserving module 260 for residual capacity be less than or equal to predetermined threshold when, according to merge rgb image and The image parameter of imitative original rgb image is selected to preserve and merges rgb image or imitative original rgb image to memorizer.Second preserving module 270 merge rgb image and imitative original rgb image for when residual capacity is more than predetermined threshold, preserving.
In other words, step S210 can be realized by the first control module 210 that step S220 can be by the first conversion module 220 realize, step S230 can be realized by the second conversion module 230 that step S240 can be realized by the 3rd conversion module 240, Step S250 can be realized by judge module 250 that step S260 can be realized by the first preserving module 260, and step S270 can be with Realized by the second preserving module 270.
Fig. 5 is referred to, the electronic installation 1000 of embodiment of the present invention includes imaging device 100, memorizer and the present invention The control device 200 of embodiment, in other words the control device 200 of embodiment of the present invention can apply to enforcement of the present invention The electronic installation 1000 of mode.
The control method of the present invention, control device 200 and electronic installation 1000 are according to the capacity and image parameter of memorizer Preserve and merge rgb image and/or imitative original rgb image, it is to avoid be fixed to preserve one of which image or while preserve two kinds of images The blindness brought, improves user satisfaction.
In some embodiments, electronic installation 1000 includes that the electronics that mobile phone or panel computer etc. possess imaging device sets Standby, here does not do any restriction.The electronic installation 1000 of embodiment of the present invention is mobile phone.
In some embodiments, imaging device 100 includes Front camera or rearmounted camera.
It is appreciated that in the case where the residual capacity of the memorizer of electronic installation 1000 is enough, conjunction can be preserved simultaneously And rgb image and imitative original rgb image.
So, it is possible to use merge rgb image and the respective advantage of imitative original rgb image so that user can be according to certainly The demand of body selects any one image.
It is appreciated that in the case of the residual capacity deficiency of the memorizer of electronic installation 1000, control device 200 can root Selected according to the image parameter for merging rgb image and imitative original rgb image.
Thus, can avoid while storing the huge load that two images are brought to memorizer.
In some embodiments, the image parameter for merging rgb image and imitative original rgb image can be white balance compensation Parameter.According to the white balance compensation parameter of two images, it is determined that the wherein more high image of quality is preserved.
In some embodiments, the image parameter for merging rgb image and imitating original rgb image can be the contrast of image Value.By contrast formula algorithm, it can be determined that whether the focusing of two images is accurate, judges the focusing of which image in other words more Accurately, focus accurate image to ensure the definition of the image for preserving so as to retain.Contrast formula algorithm is existing image pair Burnt algorithm, here are not detailed.
In some embodiments, the image parameter for merging rgb image and imitative original rgb image can be brightness of image Value.When image brightness values exceed luminance threshold, imitative original rgb image can be preserved to improve the resolution of image.It is bright in image When angle value is less than or equal to luminance threshold, can preserve and merge image with using the effect of merging pixel to improve imageing sensor 10 photoperceptivity.
Fig. 6 to Fig. 9 is seen also, the imageing sensor 10 of embodiment of the present invention includes sensitive pixel elements array 12 With the filter unit array 14 being arranged on sensitive pixel elements array 12.
Further, sensitive pixel elements array 12 includes multiple sensitive pixel elements 12a, each sensitive pixel elements 12a includes multiple adjacent photosensitive pixels 122.Each photosensitive pixel 122 includes sensor devices 1222 and a transfer tube 1224, wherein, sensor devices 1222 can be photodiode, and transfer tube 1224 can be MOS transistor.
Filter unit array 14 includes multiple filter units 14a, and each filter unit 14a covers one sense of correspondence Light pixel unit 12a.
Specifically, in some examples, filter unit array 14 includes Bayer array, in other words, adjacent four Filter unit 14a is respectively red filter blade unit, a blue filter blade unit and two green filter blade units.
Filter unit 14a of the same color of each sensitive pixel elements 12a correspondences, if sensitive pixel elements Include altogether n adjacent sensor devices 1222 in 12a, then filter unit 14a covers sensitive pixel elements N sensor devices 1222 in 12a, filter unit 14a can be Construction integrations, it is also possible to be filtered by n independent son Piece assembly and connection is together.
In some embodiments, each sensitive pixel elements 12a includes four adjacent photosensitive pixels 122, adjacent two Individual photosensitive pixel 122 collectively forms a photosensitive pixel subelement 120, photosensitive pixel subelement 120 also include a source electrode with With device 124 and an analog-digital converter 126.Sensitive pixel elements 12a also includes an adder 128.Wherein, a light-sensitive image One termination electrode of each transfer tube 1224 in sub-prime unit 120 is connected to the cathode electrode of correspondence sensor devices 1222, often The other end of individual transfer tube 1224 is commonly connected to the gate electrode of source follower 124, and passes through 124 source of source follower Pole electrode is connected to an analog-digital converter 126.Wherein, source follower 124 can be MOS transistor.Two photosensitive pixels Subelement 120 is connected to adder 128 by respective source follower 124 and analog-digital converter 126.
In other words, adjacent four in a sensitive pixel elements 12a of the imageing sensor 10 of embodiment of the present invention Individual sensor devices 1222 share filter unit 14a with color, each correspondence of sensor devices 1,222 one transmission of connection Pipe 1224, the shared source follower 124 of two neighboring sensor devices 1222 and an analog-digital converter 126, adjacent four Individual sensor devices 1222 share an adder 128.
Further, four adjacent sensor devices 1222 are in 2*2 array arrangements.Wherein, a photosensitive pixel subelement Two sensor devices 1222 in 120 may be at same row.
In imaging, when the two photosensitive pixel subelements 120 covered under same filter unit 14a, four senses in other words When optical device 1222 exposes simultaneously, pixel can be merged and then exportable merging image.
Specifically, sensor devices 1222 are for being converted into electric charge by illumination, and the electric charge for producing is proportional to intensity of illumination Relation, transfer tube 1224 is for being turned on or off come control circuit according to control signal.When circuit turn-on, source follower 124 for being converted into voltage signal by the charge signal that 1222 Jing illumination of sensor devices is produced.Analog-digital converter 126 is used for voltage Signal is converted to digital signal.Adder 128 is exported jointly for two ways of digital signals is added.
Figure 10 is referred to, the imageing sensor 10 of embodiment of the present invention can with the imageing sensor 10 of 16M for example So that the photosensitive pixel 122 of 16M is merged into 4M, in other words, output merges image, after merging, the sizableness of photosensitive pixel 122 In becoming 4 times of original size, so as to improve the light sensitivitys of photosensitive pixel 122.Further, since in imageing sensor 10 Noise major part is all random noise, for the photosensitive pixel 122 before merging, it is possible to wherein one or two picture There is noise in element, and after four photosensitive pixels 122 to be merged into a big photosensitive pixel 122, noise is reduced to this The impact of big pixel, that is to say and reduce noise, improve signal to noise ratio.
But while 122 size of photosensitive pixel becomes big, as pixel value is reduced, the resolution for merging image also will drop It is low.
In imaging, when four sensor devices 1222 covered under same filter unit 14a expose successively, can be with defeated Go out patch image.
Specifically, sensor devices 1222 are for being converted into electric charge by illumination, and the electric charge for producing is proportional to intensity of illumination Relation, transfer tube 1224 is for being turned on or off come control circuit according to control signal.When circuit turn-on, source follower 124 for being converted into voltage signal by the charge signal that 1222 Jing illumination of sensor devices is produced.Analog-digital converter 126 is used for voltage Signal is converted to digital signal.
Figure 11 is referred to, with the imageing sensor 10 of 16M for example, the imageing sensor 200 of embodiment of the present invention The photosensitive pixel 122 of 16M can also be kept to export, export patch image in other words, patch image includes image pixel elements, be schemed As pixel cell includes the original pixels of 2*2 array arrangements, the size of the original pixels is identical with 122 size of photosensitive pixel, so And as filter unit 14a for covering adjacent four sensor devices 1222 is same color, also say immediately, although four photosensitive Device 1222 exposes respectively, but it is identical to cover its filter unit 14a color, therefore, each image pixel elements of output Adjacent four original pixels colors it is identical, still cannot improve the resolution of image.
The control method of embodiment of the present invention, can be used for processing the patch image for exporting, to obtain imitative original Image.
It is appreciated that merging image in output, four adjacent homochromy photosensitive pixels 122 are exported with merging pixel, such as This, the four adjacent merging pixels merged in image are still considered as typical Bayer array, can direct controlled device 200 process to export merging rgb image.And patch image each photosensitive pixel 122 in output is exported respectively, due to adjacent Four 122 colors of photosensitive pixel are identical, therefore, the color of four adjacent original pixels of image pixel elements is identical, is Atypical Bayer array.And control device 200 cannot be directly processed to atypia Bayer array, in other words, in figure When adopting same control device 200 as sensor 10, it is that the rgb image of compatible both of which exports the conjunction under i.e. merging patterns And rgb image output and the imitative former rgb image output under color lump pattern, patch image need to be converted into imitative original image, or Say the pixel arrangement that the image pixel elements of atypia Bayer array are converted into typical Bayer array.
Imitative original image includes the imitative original pixel in Bayer array arrangement.Imitative original pixel includes current pixel, original pixels bag Include associated pixel corresponding with current pixel.
Figure 12 is referred to, by taking Figure 12 as an example, current pixel is R3 ' 3 ' and R5 ' 5 ', and corresponding associated pixel is respectively R33 And B55.
Obtain current pixel R3 ' 3 ' when, due to R3 ' 3 ' it is identical with the color of corresponding associated pixel R33, therefore turn During change directly using the pixel value of R33 as R3 ' 3 ' pixel value.
When current pixel R5 ' 5 ' are obtained, as R5 ' 5 ' is differed with the color of corresponding associated pixel B55, it is clear that no The side by interpolation according to the associated pixel unit of R5 ' 5 ' can be needed directly using the pixel value of B55 as the pixel value of R5 ' 5 ' Formula is calculated.
It should be noted that the above and pixel value hereinafter are construed broadly to mean the color attribute numerical value for the pixel, Such as color-values.
Associated pixel unit include it is multiple, such as 4, identical with current pixel and adjacent with the current pixel image of color Original pixels in pixel cell.
It should be noted that adjacent herein should be interpreted broadly, by taking Figure 12 as an example, 5 ' corresponding associated pixels of R5 ' are B55, with B55 be located image pixel elements it is adjacent and and 5 ' color identical associated pixel units of R5 ' be located image slices Plain unit is respectively the image pixel elements that R44, R74, R47, R77 are located, and not spatially apart from the image at B55 places The farther other red image pixels units of pixel cell.Wherein, the red original pixels spatially closest with B55 Respectively R44, R74, R47 and R77, in other words, the associated pixel unit of R5 ' 5 ' is made up of R44, R74, R47 and R77, R5 ' 5 ' is identical with the color of R44, R74, R47 and R77 and adjacent.
Thus, for the current pixel of different situations, in different ways original pixels are converted into imitative original pixel, from And patch image is converted into into imitative original image, the optical filter of special Bayer array structure during due to shooting image, is employed, is carried High signal noise ratio (snr) of image, and in image processing process, interpolation processing is carried out to patch image by interpolation algorithm, is improve The resolution and resolution of image.
Figure 13 is referred to, in some embodiments, step S223 is comprised the following steps：
S2232：Calculate the gradual change amount in associated pixel unit all directions；
S2234：Calculate the weight in associated pixel unit all directions；With
S2236：According to gradual change amount and the pixel value of weight calculation current pixel.
Refer to Figure 14, in some embodiments, the second computing unit 223 include the first computation subunit 2232, Two computation subunits 2234 and the 3rd computation subunit 2236.Step S2232 can be realized by the first computation subunit 2232, be walked Rapid S2234 can be realized by the second computation subunit 2234 that step S2236 can be realized by the 3rd computation subunit 2236.Or Person says that the first computation subunit 2232 is used to calculate the gradual change amount in associated pixel unit all directions, the second computation subunit 2234 are used to calculate the weight in associated pixel unit all directions, and the 3rd computation subunit 2236 is for according to gradual change amount and power The pixel value of re-computation current pixel.
Specifically, interpolation processing mode is reference picture energy gradual change in different directions, will be corresponding with current pixel The identical and adjacent associated pixel unit of color according to gradual change weight size in different directions, by the side of linear interpolation Formula is calculated the pixel value of current pixel.Wherein, on the less direction of energy variation amount, reference specific gravity is larger, therefore, Weight during interpolation calculation is larger.
In some examples, for convenience of calculating, only consider both horizontally and vertically.
R5 ' 5 ' is obtained by R44, R74, R47 and R77 interpolation, and it is identical to there is no color in the horizontal and vertical directions Original pixels, therefore need the first component that the color in the horizontal and vertical directions is calculated according to associated pixel unit.Wherein, water Component square upwards is that R45 and R75, vertically-oriented component can pass through R44, R74, R47 and R77 respectively for R54 and R57 It is calculated.
Specifically, R45=R44*2/3+R47*1/3, R75=2/3*R74+1/3*R77, R54=2/3*R44+1/3* R74, R57=2/3*R47+1/3*R77.
Then, calculate respectively in gradual change amount both horizontally and vertically and weight, in other words, according to the color in difference The gradual change amount in direction, to determine the reference weight of the different directions in interpolation, in the little direction of gradual change amount, weight is larger, and The larger direction of gradual change amount, weight are less.Wherein, gradual change amount X1=| R45-R75 | in the horizontal direction, in vertical direction Gradual change amount X2=| R54-R57 |, W1=X1/ (X1+X2), W2=X2/ (X1+X2).
Thus, being calculated according to above-mentioned, 5 '=(2/3*R45+1/3*R75) * W2+ (2/3*R54+1/3* of R5 ' R57)*W1.It is appreciated that if X1 is more than X2, W1 is more than W2, therefore the weight of horizontal direction is W2 when calculating, and Vertical Square To weight be W1, vice versa.
Thus, the pixel value of current pixel can be calculated according to interpolation algorithm.According to the above-mentioned process to associated pixel Original pixels can be converted into the imitative original pixel in typical Bayer array arrangement by mode, in other words, four adjacent 2*2 battle arrays The imitative original pixel of row includes that a redness imitates original pixel, and two imitative original pixel of green and a blueness imitate original pixel.
It should be noted that the mode of interpolation includes but is not limited to only considering when calculating vertically disclosed in the present embodiment With the mode of the pixel value of horizontal both direction same color, for example, can also refer to the pixel value of other colors.
Figure 15 and Figure 16 is referred to, in some embodiments, before step S223, includes step：
S224：White balance compensation is done to patch image；
Include step after step S223：
S225：White balance compensation reduction is done to imitative original image.
In some embodiments, the first conversion module 220 includes white balance compensation unit 224 and white balance compensation reduction Unit 225.Step S224 can be realized by white balance compensation unit 224 that step S225 can be by white balance compensation reduction unit 225 realize.In other words, white balance compensation unit 224 for doing white balance compensation, white balance compensation reduction unit to patch image 225 reduce for doing white balance compensation to imitative original image.
Specifically, in some instances, during patch image to be converted into imitative original image, in Interpolation Process, Red and blue imitative original pixel, can also be with reference to green often not only with reference to the color with the original pixels of its color identical passage The color weight of the original pixels of passage, therefore, need to carry out white balance compensation before interpolation, it is white to exclude in interpolation calculation The impact of balance.In order to not destroy the white balance of patch image, therefore, need for imitative original image to carry out white balance after interpolation Compensation reduction, is reduced according to the yield value of red, green and blueness in the compensation during reduction.
Thus, the impact of the white balance in Interpolation Process can be excluded, and the imitative original image obtained after enabling to interpolation Keep the white balance of patch image.
Referring to Figure 15 and Figure 16, in some embodiments, before step S223, include step：
S226：Compensating bad point is done to patch image.
In some embodiments, the first conversion module 220 includes compensating bad point unit 226.Step S226 can be by bad Point compensating unit 226 is realized.In other words, compensating bad point unit 226 is for doing compensating bad point to patch image.
It is appreciated that being limited to manufacturing process, may there is bad point in imageing sensor 10, bad point is not generally with light sensitivitys Change and same color is presented all the time, the presence of bad point will affect picture quality, therefore, it is the accurate of guarantee interpolation, not by bad The impact of point, needs carry out compensating bad point before interpolation.
Specifically, during compensating bad point, original pixels can be detected, is bad when a certain original pixels are detected During point, compensating bad point can be carried out according to the pixel value of other original images of its image pixel elements being located.
Thus, impact of the bad point to interpolation processing can be excluded, picture quality is improved.
Referring to Figure 15 and Figure 16, in some embodiments, before step S223, include step：
S227：Crosstalk compensation is done to patch image.
In some embodiments, the first conversion module 220 includes crosstalk compensation unit 227.Step S227 can be by going here and there Disturb compensating unit 227 to realize.In other words, crosstalk compensation unit 227 is for doing crosstalk compensation to patch image.
Specifically, four photosensitive pixels 122 in a sensitive pixel elements 12a cover the optical filter of same color, and The difference of light sensitivitys is there may be between photosensitive pixel 122, so as to imitate in the imitative former rgb image that original image conversion is exported Solid color regions occur fixed pattern spectral noise, affect the quality of image.Accordingly, it would be desirable to carry out crosstalk compensation to patch image.
In some embodiments, setting compensation parameter is comprised the following steps：Predetermined luminous environment is provided；Imaging device is set Imaging parameters；Shoot multi-frame images；Process multiple image to obtain crosstalk compensation parameter；With crosstalk compensation parameter is stored in In image processing apparatus.
Explanation is explained above, crosstalk compensation is carried out, is needed in 10 manufacture process of imageing sensor of imaging device 100 Compensating parameter is obtained, and the relevant parameter of crosstalk compensation is preset in the memorizer of imaging device 100 or imaging device is installed In 100 electronic installation 1000 such as mobile phone or panel computer.
Predetermined luminous environment for example may include the colour temperature of the even tabula rasas of LED, 5000K or so, 1000 lux of brightness or so, imaging Parameter may include yield value, fast gate value and lens location.After setting relevant parameter, the acquisition of crosstalk compensation parameter is carried out.
In processing procedure, the imaging parameters first in the luminous environment of setting to set obtain multiple patch images, and A patch image is merged into, the influence of noise using individual patch image as calibration basis can be so reduced.
Figure 17 is referred to, by taking the image pixel elements Gr in Figure 17 as an example, which includes Gr1, Gr2, Gr3 and Gr4, and crosstalk is mended It is that light sensitivitys there may be the photosensitive pixel of difference by compensating into originally calibrating to same level to repay purpose.The image pixel The average pixel value of unit is Gr_avg=(Gr1+Gr2+Gr3+Gr4)/4, can characterize substantially the photosensitive of this four photosensitive pixels The average level of degree, is worth based on this meansigma methods, calculates Gr1/Gr_avg respectively, Gr2/Gr_avg, Gr3/Gr_avg and Gr4/Gr_avg, it will be understood that by calculating the pixel value of each original pixels and the mean pixel of the image pixel elements The ratio of value, can reflect the deviation of each original pixels and basic value substantially, record four ratios and remember as compensating parameter Record in the memorizer of relevant apparatus, each original pixels is compensated with being transferred in imaging, so as to reduce crosstalk, Improve picture quality.
Generally, should also verify whether set parameter is accurate after setting crosstalk compensation parameter.
In proof procedure, a patch image is obtained with identical luminous environment and imaging parameters first, foundation is calculated Compensating parameter carry out crosstalk compensation to the patch image, calculate the Gr ' after compensation _ avg, Gr ' 1/Gr ' _ avg, Gr ' 2/Gr ' _ Avg, Gr ' 3/Gr ' _ avg and Gr ' 4/Gr ' _ avg.Whether accurately compensating parameter is judged according to result of calculation, judgement can be according to grand See and consider with two angles of microcosmic.Microcosmic refers to some original pixels, and after compensation, still deviation is larger, is easily made after imaging User perceives, and macroscopic view is then from global angle, when that is to say that the total number of the original pixels that deviation is still suffered from after compensation is more, Even if now individually the deviation of each original pixels is little, but still can be perceived as overall.Therefore, should Arrange and one proportion threshold value is set for microcosmic, one proportion threshold value and an amount threshold need to be set for macroscopic view.Such as This, can to arrange crosstalk compensation parameter verify, it is ensured that compensating parameter it is correct, to reduce shadow of the crosstalk to picture quality Ring.
Figure 18 and Figure 19 is referred to, in some embodiments, after step S223, also includes step：
S228：Eyeglass shadow correction, demosaicing, noise reduction and edge sharpening are carried out to imitative original image to process.
In some embodiments, the first conversion module 220 includes processing unit 228.Step S228 can be single by processing Unit 228 realizes, in other words, processing unit 228 is for carrying out eyeglass shadow correction, demosaicing, noise reduction and side to imitative original image Edge Edge contrast.
It is appreciated that patch image is converted into after imitative original image, it is typical Bayer array to imitate original pixel arrangement, can be adopted Processed with processing meanss 200, processing procedure includes that eyeglass shadow correction, demosaicing, noise reduction and edge sharpening are processed, Thus, imitative original rgb image can be obtained after processing exporting to user.
Figure 20 and Figure 21 is referred to, in some embodiments, step S230 is comprised the following steps：
S232：Using the second interpolation algorithm will merge image change into it is corresponding with imitative original image go back original image, second inserts The complexity of value-based algorithm is less than the first interpolation algorithm；With
S234：Original image will be gone back and change into merging rgb image.
In some embodiments, the second conversion module 230 includes the first conversion unit 232 and the second conversion unit 234. First conversion unit 232 for using the second interpolation algorithm will merge image change into it is corresponding with imitative original image go back original image, The complexity of the second interpolation algorithm is less than the first interpolation algorithm.Second conversion unit 234 changes into merging for going back original image Rgb image.In other words, step S232 can be realized by the first conversion unit 232 that step S234 can be single by the second conversion Unit 234 realizes.
In some embodiments, the time complexity and space complexity of the second interpolation algorithm is all than the first interpolation algorithm It is little.The complexity of algorithm includes time complexity and space complexity, time complexity be used for that metric algorithm needs to expend when Between, space complexity is to need the memory space for expending for metric algorithm.The little explanation algorithm of time complexity needs what is expended Time is few, and the little explanation algorithm of space complexity needs the memory space for expending little, therefore, be conducive to carrying using the second interpolation algorithm High arithmetic speed so that process of taking pictures is more smooth, improves Consumer's Experience.
In some embodiments, the second interpolation algorithm can will simply merge image quadruplication without Jing Other complex calculations are crossed, so as to obtain corresponding with imitative original image going back original image.
It is appreciated that after the first conversion unit 232 and the conversion of the second conversion unit 234 obtain imitative original rgb image, Noise reduction can be carried out to imitative original rgb image and edge sharpening is processed, thus, the imitative former true of better quality is obtained after processing Coloured picture picture is exported to user.
In the description of embodiments of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length Degree ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", the orientation or position relationship of the instruction such as " clockwise ", " counterclockwise " based on orientation shown in the drawings or position relationship, is only It is to describe for the ease of describing embodiments of the present invention and simplifying, rather than indicates or imply that the device or element of indication are necessary With specific orientation, with specific azimuth configuration and operation, therefore it is not intended that restriction to embodiments of the present invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include one or more feature.In the description of embodiments of the present invention, " multiple " are meant that two Individual or two or more, unless otherwise expressly limited specifically.
In the description of embodiments of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or one The connection of body ground；Can be mechanically connected, or electrically connect or mutually can communicate；Can be joined directly together, it is also possible to logical Cross intermediary to be indirectly connected to, can be connection or the interaction relationship of two elements of two element internals.For ability For the those of ordinary skill in domain, above-mentioned term specifically containing in embodiments of the present invention can be understood as the case may be Justice.
In embodiments of the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can include the first and second feature directly contacts, it is also possible to be not directly to connect including the first and second features Touch but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " on Including fisrt feature directly over second feature and oblique upper, or to be merely representative of fisrt feature level height special higher than second in face " Levy.Fisrt feature second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and tiltedly under Side, or fisrt feature level height is merely representative of less than second feature.
Above disclosure provides many different embodiments or example is used for realizing embodiments of the present invention not Same structure.In order to simplify the disclosure of embodiments of the present invention, above the part and setting of specific examples are described.When So, they are only merely illustrative, and purpose does not lie in the restriction present invention.Additionally, embodiments of the present invention can be in different examples Repeat reference numerals and/or reference letter in son, this repetition are for purposes of simplicity and clarity, itself not indicate to be begged for By the relation between various embodiments and/or setting.Additionally, the various specific technique that embodiments of the present invention are provided With the example of material, but those of ordinary skill in the art can be appreciated that the application of other techniques and/or making for other materials With.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically enforcement The description of mode ", " example ", " specific example " or " some examples " etc. means the tool described with reference to the embodiment or example Body characteristicses, structure, material or feature are contained at least one embodiment or example of the present invention.In this manual, Identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, the specific features of description, knot Structure, material or feature can be combined in one or more any embodiment or example in an appropriate manner.
In flow chart or here any process described otherwise above or method description are construed as, expression includes It is one or more for realizing specific logical function or process the step of the module of code of executable instruction, fragment or portion Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein the suitable of shown or discussion can not be pressed Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention Embodiment person of ordinary skill in the field understood.
Expression or here logic described otherwise above and/or step, for example, are considered use in flow charts In the order list of the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (as computer based system, the system including processing module or other can be from instruction The system of execution system, device or equipment instruction fetch execute instruction) use, or combine these instruction execution systems, device or Equipment and use.For the purpose of this specification, " computer-readable medium " can be it is any can include, store, communicating, propagating or Transmission procedure is used for instruction execution system, device or equipment or with reference to these instruction execution systems, device or equipment Device.The more specifically example (non-exhaustive list) of computer-readable medium is including following：Connect up with one or more Electrical connection section (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read only memory (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program thereon or other are suitable Medium, because for example by carrying out optical scanning to paper or other media edlin, interpretation can then be entered or if necessary with which His suitable method is processed to electronically obtain described program, is then stored in computer storage.
It should be appreciated that each several part of embodiments of the present invention can be with hardware, software, firmware or combinations thereof come real It is existing.In the above-described embodiment, multiple steps or method can be with storages in memory and by suitable instruction execution system The software or firmware of execution is realizing.For example, if realized with hardware, with another embodiment, ability can be used Any one of following technology known to domain or their combination are realizing：With for realizing logic function to data signal The discrete logic of logic gates, the special IC with suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried Suddenly the hardware that can be by program to instruct correlation is completed, and described program can be stored in a kind of computer-readable storage medium In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, each functional unit in various embodiments of the present invention can be integrated in a processing module, also may be used Being that unit is individually physically present, it is also possible to which two or more units are integrated in a module.It is above-mentioned integrated Module both can be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module If using in the form of software function module realize and as independent production marketing or use when, it is also possible to be stored in a calculating In machine read/write memory medium.
Storage medium mentioned above can be read only memory, disk or CD etc..
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (21)

1. a kind of control method, for controlling electronic installation, it is characterised in that the electronic installation includes imaging device and storage Device, the imaging device include imageing sensor, and described image sensor includes sensitive pixel elements array and is arranged on described Filter unit array on sensitive pixel elements array, it is described photosensitive that each described filter unit array covers correspondence one Pixel cell, each described sensitive pixel elements include multiple photosensitive pixels, and the control method is comprised the following steps：
The merging image and patch image of control described image sensor output Same Scene, the merging image include merging picture Pixel array, multiple photosensitive pixels of the same sensitive pixel elements merge output as a merging pixel, the color Block image includes the image pixel elements of predetermined array arrangement, and described image pixel cell includes multiple original pixels, each institute State photosensitive pixel one original pixels of correspondence；
The patch image is changed into into imitative original image, the imitative original image includes the imitative original pixel of array arrangement, the imitative original Pixel includes current pixel, and the original pixels include associated pixel corresponding with the current pixel, described by the color lump The step of image changes into the imitative original image comprises the following steps：
Judge whether the color of the current pixel is identical with the color of the associated pixel；
When the color of the current pixel is identical with the color of the associated pixel, using the pixel value of the associated pixel as The pixel value of the current pixel；With
It is when the color of the current pixel is different from the color of the associated pixel, logical according to the pixel value of associated pixel unit The pixel value that the first interpolation algorithm calculates the current pixel is crossed, described image pixel cell includes the associated pixel unit, The color of the associated pixel unit is identical with the current pixel and adjacent with the current pixel；
The merging image is changed into into merging rgb image；
The imitative original image is changed into into imitative original rgb image；
Judge the residual capacity of the memorizer whether less than or equal to predetermined threshold；
When the residual capacity is less than or equal to the predetermined threshold, according to the merging rgb image and the imitative former very coloured silk The image parameter of image selects to preserve the merging rgb image or the imitative former rgb image to the memorizer；With
When the residual capacity is more than the predetermined threshold, the merging rgb image and the imitative former rgb image are preserved.
2. control method as claimed in claim 1, it is characterised in that the predetermined array includes Bel's array.
3. control method as claimed in claim 1, it is characterised in that described image pixel cell includes the described of 2*2 arrays Original pixels.
4. control method as claimed in claim 1, it is characterised in that the pixel value according to associated pixel unit is by the The step of one interpolation algorithm calculates the pixel value of the current pixel comprises the following steps：
Calculate the gradual change amount in the associated pixel all directions；
Calculate the weight in the associated pixel all directions；With
According to the gradual change amount and current pixel described in the weight calculation pixel value.
5. control method as claimed in claim 1, it is characterised in that the control method is described according to associated pixel unit Pixel value the step of calculate the pixel value of the current pixel by the first interpolation algorithm before comprise the following steps：
White balance compensation is done to the patch image；
The control method calculates the current picture by the first interpolation algorithm in the pixel value according to associated pixel unit Comprise the following steps after the step of pixel value of element：
White balance compensation reduction is done to the imitative original image.
6. control method as claimed in claim 1, it is characterised in that the control method is described according to associated pixel unit Pixel value the step of calculate the pixel value of the current pixel by the first interpolation algorithm before comprise the following steps：
Compensating bad point is done to the patch image.
7. control method as claimed in claim 1, it is characterised in that the control method is described according to associated pixel unit Pixel value the step of calculate the pixel value of the current pixel by the first interpolation algorithm before comprise the following steps：
Crosstalk compensation is done to the patch image.
8. control method as claimed in claim 1, it is characterised in that the control method is described according to associated pixel unit Pixel value comprised the steps after the step of the first interpolation algorithm calculates the pixel value of the current pixel：
Carry out lens shape correction, demosaicing, noise reduction and edge sharpening to process to the imitative original image.
9. control method as claimed in claim 1, it is characterised in that described that the merging image is changed into into the true coloured picture of merging As the step of comprise the following steps：
Using the second interpolation algorithm by the merging image change into it is corresponding with the imitative original image go back original image, described second The complexity of interpolation algorithm is less than first interpolation algorithm；With
The original image of going back is changed into into the merging rgb image.
10. a kind of control device, for controlling electronic installation, it is characterised in that the electronic installation includes imaging device and deposits Reservoir, the imaging device include imageing sensor, and described image sensor includes sensitive pixel elements array and is arranged on institute The filter unit array on sensitive pixel elements array is stated, each described filter unit array covers one sense of correspondence Light pixel unit, each described sensitive pixel elements include multiple photosensitive pixels, and the control device includes：
First control module, first control module are used to control the merging image that described image sensor exports Same Scene And patch image, the merging image includes merging pel array, and the multiple photosensitive pixels of the same sensitive pixel elements are closed And export as a merging pixel, the patch image includes the image pixel elements of predetermined array arrangement, the figure As pixel cell includes multiple original pixels, each one described original pixels of the photosensitive pixel correspondence；
First conversion module, first conversion module is for changing into imitative original image, the imitative artwork by the patch image Imitative original pixel as including array arrangement, the imitative original pixel include current pixel, and the original pixels include current with described The corresponding associated pixel of pixel, first conversion module include：
Judging unit, the judging unit are used to judging the color of the color of the current pixel and the associated pixel whether phase Together；
First computing unit, color of first computing unit for the color in the current pixel and the associated pixel When identical, using the pixel value of the associated pixel as the current pixel pixel value；With
Second computing unit, color of second computing unit for the color in the current pixel and the associated pixel When different, the pixel value of the current pixel is calculated according to the pixel value of associated pixel unit by the first interpolation algorithm, it is described Image pixel elements include the associated pixel unit, the color of the associated pixel unit it is identical with the current pixel and with The current pixel is adjacent；
Second conversion module, second conversion module for by it is described merging image change into merging rgb image；
3rd conversion module, the 3rd conversion module imitate original rgb image for the imitative original image is changed into；
Whether judge module, the judge module are used for the residual capacity for judging the memorizer less than or equal to predetermined threshold；
First preserving module, first preserving module for the residual capacity be less than or equal to the predetermined threshold when, Select to preserve the merging rgb image or institute according to the image parameter for merging rgb image and the imitative former rgb image Imitative original rgb image is stated to the memorizer；With
Second preserving module, second preserving module for the residual capacity be more than the predetermined threshold when, preserve institute State merging rgb image and the imitative former rgb image.
11. control devices as claimed in claim 10, it is characterised in that the predetermined array includes Bel's array.
12. control devices as claimed in claim 10, it is characterised in that described image pixel cell includes the institute of 2*2 arrays State original pixels.
13. control devices as claimed in claim 10, it is characterised in that second computing unit includes：
First computation subunit, first computation subunit are used to calculate the gradual change amount in the associated pixel all directions；
Second computation subunit, second computation subunit are used to calculate the weight in the associated pixel all directions；With
3rd computation subunit, the 3rd computation subunit is for current according to the gradual change amount and the weight calculation The pixel value of pixel.
14. control devices as claimed in claim 10, it is characterised in that first conversion module includes：
White balance compensation unit, the white balance compensation unit is for doing white balance compensation to the patch image；With
White balance compensation reduction unit, the white balance compensation reduction unit is for doing white balance compensation also to the imitative original image It is former.
15. control devices as claimed in claim 10, it is characterised in that first conversion module includes：
Compensating bad point unit, the compensating bad point unit is for doing compensating bad point to the patch image.
16. control devices as claimed in claim 10, it is characterised in that first conversion module includes：
Crosstalk compensation unit, the crosstalk compensation unit is for doing crosstalk compensation to the patch image.
17. control devices as claimed in claim 10, it is characterised in that first conversion module includes：
Processing unit, the processing unit is for carrying out lens shape correction, demosaicing, noise reduction and side to the imitative original image Edge Edge contrast.
18. control devices as claimed in claim 10, it is characterised in that second conversion module includes：
First conversion unit, first conversion unit for using the second interpolation algorithm by it is described merging image change into and institute State that imitative original image is corresponding to go back original image, the complexity of second interpolation algorithm is less than first interpolation algorithm；With
Second conversion unit, second conversion unit is for changing into the merging rgb image by the original image of going back.
19. a kind of electronic installations, it is characterised in that include：
Imaging device；
Memorizer；With
Control device as described in claim 10-18 any one.
20. electronic installations as claimed in claim 19, it is characterised in that the electronic installation includes mobile phone or panel computer.
21. electronic installations as claimed in claim 19, it is characterised in that the imaging device includes Front camera or rearmounted phase Machine.
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