CN106210678A - Image color processing method, device and terminal unit - Google Patents
Image color processing method, device and terminal unit Download PDFInfo
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- H—ELECTRICITY
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- 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
Abstract
The application proposes a kind of image color processing method, device and terminal unit, the method is used in the terminal unit with shoot function, MEMS controls imageing sensor and moves, imageing sensor includes filter unit, filter unit includes: the first color filter disc of diagonal angle deployment and the second color filter disc, two the 3rd color filter discs that diagonal angle is disposed；Including: at initial position, preview screen shot the first two field picture；Trigger MEMS and imageing sensor is moved a pixel distance to primary importance from initial position to default first direction, shoot the second two field picture in primary importance；Trigger MEMS and imageing sensor is moved a pixel distance to the second position from primary importance to default second direction, shoot the 3rd two field picture in the second position；According to color component synthesis the 4th two field picture that each location of pixels in the first two field picture, the second two field picture and the 3rd two field picture is corresponding.Thus, improve the accuracy of image color reduction.
Description
Technical field
The application relates to technical field of image processing, particularly relates to a kind of image color processing method, device and terminal and sets
Standby.
Background technology
The various terminal units with shoot function are widely applied in daily life, and it is right that terminal unit needs when shooting
Picture to be obtained carries out image color reduction treatment, preferably shoots image obtaining quality as far as possible.
Owing to the true color of image refers to, in each pixel value of composition one width coloured image, have tri-primary colours of R, G, B
Component, each primary color component directly determines that the primary intensities of display device produces colour.But, image sensing of the prior art
Device out data form be bayer data form, each pixel of this form only has in three Color Channels,
Therefore, each real color component of pixel only one of which, the color component of other disappearances needs by other processing modes
Estimation obtains, and the color component of estimation and real color component are carried out synthesis process.
Therefore, current terminal unit, when shooting picture, causes acquired image color and real picture color
Quite different, bad to the color rendition degree of image.
Summary of the invention
One of technical problem that the application is intended to solve in correlation technique the most to a certain extent.
To this end, the first of the application purpose is to propose a kind of image color processing method, the method achieving can
Obtain more color component in image pixel, improve reduction effect and the picture quality of image realistic colour.
Second purpose of the application is to propose a kind of image color processing means.
3rd purpose of the application is to propose a kind of terminal unit.
For reaching above-mentioned purpose, the application first aspect embodiment proposes a kind of image color processing method, described method
Applying in terminal unit, the imaging modules of described terminal unit includes: MEMS and imageing sensor, wherein, described
MEMS controls described imageing sensor and moves, and described imageing sensor includes photosensitive pixel array, and is arranged on institute
Stating the optical filter on photosensitive pixel array, described optical filter includes that multiple filter unit, each filter unit are two row two row
Matrix unit, described matrix unit includes: a first color filter disc of diagonal angle deployment and a second color filter disc, and right
Two the 3rd color filter discs of corner administration；
Said method comprising the steps of:
At initial position, preview screen shot the first two field picture；
Trigger described MEMS and described imageing sensor is moved one from initial position to default first direction
Pixel distance is to primary importance, and shoots the second two field picture in described primary importance；
Trigger described MEMS to be moved to default second direction from described primary importance by described imageing sensor
One pixel distance is to the second position, and shoots the 3rd two field picture in the described second position；
According to described first two field picture, described second two field picture and described 3rd two field picture pass through described optical filter
Color component corresponding to each location of pixels in the described preview screen obtained, carries out synthesis and processes and generate the of described preview screen
Four two field pictures.
The image color processing method of the embodiment of the present application, moves by utilizing MEMS accurately to control imageing sensor
Dynamic, and on imageing sensor, it is provided with optical filter and photosensitive pixel array, optical filter includes multiple filter unit, multiple optical filterings
Blade unit forms the matrix structure of two row two row, and includes the first color filter disc, the second color filter disc and two in filter unit
Individual 3rd color filter disc, has precise displacement and controls the MEMS control imageing sensor of function along the first direction preset
A pixel distance is moved respectively with default second direction, so that terminal unit obtains the first two field picture before mobile,
Obtain the second two field picture after mobile first direction, after mobile second direction, obtain the 3rd two field picture, and according to each two field picture
First two field picture, the second two field picture and the 3rd two field picture are carried out being synthetically formed the 4th frame figure by the color component of each location of pixels
Picture, i.e. final image, can obtain more color component in image pixel thus, improves the reduction effect of realistic colour
Fruit and picture quality.
For reaching above-mentioned purpose, the application second aspect embodiment proposes a kind of image color processing means, and this device should
It is used in the terminal unit with shoot function,
Imaging modules in described terminal unit includes: MEMS and imageing sensor, wherein,
Described MEMS controls described imageing sensor and moves, and described imageing sensor includes photosensitive pixel array,
And it being arranged on the optical filter on described photosensitive pixel array, described optical filter includes multiple filter unit, each filter unit
Being the matrix unit of two row two row, described matrix unit includes: a first color filter disc of diagonal angle deployment and second face
Color filter disc, and two the 3rd color filter discs that diagonal angle is disposed；
Described device includes:
First processing module, for shooting the first two field picture at initial position to preview screen；
Second processing module, be used for triggering described MEMS by described imageing sensor from described initial position in advance
If first direction move a pixel distance to primary importance, and shoot the second two field picture in described primary importance；
3rd processing module, be used for triggering described MEMS by described imageing sensor from described primary importance in advance
If second direction move a pixel distance to the second position, and shoot the 3rd two field picture in the described second position；
Synthesis module, for according to logical in described first two field picture, described second two field picture and described 3rd two field picture
Cross the color component that in the described preview screen that described optical filter obtains, each location of pixels is corresponding, carry out synthesis and process described in generation
4th two field picture of preview screen.
The image color processing means of the embodiment of the present application, this image color processing means is applied in terminal unit, eventually
Imaging modules in end equipment includes MEMS and imageing sensor, and MEMS is connected with imageing sensor, microcomputer
Electricity System Control Figure moves as sensor, and is provided with optical filter and photosensitive pixel array on imageing sensor, and optical filter includes
Multiple filter unit, multiple filter unit form the matrix structure of two row two row, and include the first face in filter unit
Color filter disc, the second color filter disc and two the 3rd color filter discs, have precise displacement and control the MEMS control figure of function
As sensor moves a pixel distance, so that terminal unit is moving along the first direction preset and the second direction of presetting
Front acquisition the first two field picture, obtains the second two field picture after mobile first direction, obtains the 3rd frame figure after mobile second direction
Picture, and according to the color component of each location of pixels of each two field picture, the first two field picture, the second two field picture and the 3rd two field picture are entered
Row is synthetically formed the 4th two field picture, i.e. final image, can obtain more color component in image pixel thus, improves
The reduction effect of realistic colour and picture quality.
For reaching above-mentioned purpose, the application third aspect embodiment proposes a kind of terminal unit, including: housing be arranged on
Imaging modules in described housing, wherein, described imaging modules includes: MEMS, imageing sensor, camera lens, memorizer
And processor,
Described MEMS controls described imageing sensor and moves,
Described imageing sensor includes photosensitive pixel array, and is arranged on the optical filter on described photosensitive pixel array,
Described optical filter includes the matrix unit that multiple filter unit, each filter unit are two row two row, and described matrix unit includes:
One the first color filter disc of diagonal angle deployment and a second color filter disc, and two the 3rd color filter discs that diagonal angle is disposed；
Described memorizer is used for storing executable program code；
Described processor is by reading the executable program code stored in memorizer to perform:
At initial position, preview screen shot the first two field picture；
Trigger described MEMS to be moved to default first direction from described initial position by described imageing sensor
One pixel distance is to primary importance, and shoots the second two field picture in described primary importance；
Trigger described MEMS to be moved to default second direction from described primary importance by described imageing sensor
One pixel distance is to the second position, and shoots the 3rd two field picture in the described second position；
According to described first two field picture, described second two field picture and described 3rd two field picture pass through described optical filter
Color component corresponding to each location of pixels in the described preview screen obtained, carries out synthesis and processes and generate the of described preview screen
Four two field pictures.
The terminal unit of the embodiment of the present application, the MEMS in this terminal unit controls imageing sensor and moves, and
Being provided with optical filter and photosensitive pixel array on imageing sensor, optical filter includes multiple filter unit, multiple optical filter lists
Unit forms the matrix structure of two row two row, and includes the first color filter disc, the second color filter disc and two the in filter unit
Three color filter discs, have precise displacement and control the MEMS control imageing sensor of function along the first direction preset with pre-
If second direction move a pixel distance, so that terminal unit obtains the first two field picture before mobile, in movement first
Obtain the second two field picture behind direction, after mobile second direction, obtain the 3rd two field picture, and according to each pixel position of each two field picture
First two field picture, the second two field picture and the 3rd two field picture are carried out being synthetically formed the 4th two field picture, the most finally by the color component put
Image, can obtain more color component in image pixel thus, improve reduction effect and the image of realistic colour
Quality.
Aspect and advantage that the present invention adds will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or that add aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially with easy to understand, wherein:
Fig. 1 is the knot of optical filter in the terminal unit applied in the image color processing method of one embodiment of the application
Structure schematic diagram；
Fig. 2 is the MEMS involved by the image color processing method of one embodiment of the application and imageing sensor
Structural representation；
Fig. 3 is the flow chart of the image color processing method of one embodiment of the application；
Shown in Fig. 4 is the color component schematic diagram obtained by optical filter in the first two field picture；
Shown in Fig. 5 is the color component schematic diagram obtained by optical filter in the second two field picture；
Shown in Fig. 6 is the color component schematic diagram obtained by optical filter in the 3rd two field picture；
Fig. 7 is the flow chart of the image color processing method of another embodiment of the application；
Fig. 8 is the structural representation of the image color processing means of one embodiment of the application；
Fig. 9 is the structural representation of the image color processing means of another embodiment of the application；
Figure 10 is the structural representation of the terminal unit of one embodiment of the application.
Detailed description of the invention
Embodiments herein is described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to be used for explaining the application, and it is not intended that restriction to the application.
Below with reference to the accompanying drawings the image color processing method of the embodiment of the present application, device and terminal unit are described.
Specifically, the image color processing method that the present invention provides is applied in the terminal unit with shoot function, needs
It is noted that the type of terminal unit is a lot, such as, includes: mobile phone, panel computer, wearable device etc..
Terminal unit with shoot function includes imaging modules.Wherein, the imageing sensor in imaging modules includes sense
Light pixel array, and the optical filter being arranged on photosensitive pixel array.Light sensitivity principles is the photosensitive unit of photosensitive pixel array
By receiving from the optical signal of optical filter filtration to produce the signal of telecommunication, and obtained the output of color by exposure.
It should be noted that the color that the location of pixels correspondence of each shooting image of the structures shape of optical filter filters is divided
The distribution situation of amount, can need to select different filter sheet structures to carry out image taking according to reality application.The present embodiment carries
The filter sheet structure of the involved application of the image color processing method of confession is as it is shown in figure 1, specific as follows:
Fig. 1 is the knot of optical filter in the terminal unit applied in the image color processing method of one embodiment of the application
Structure schematic diagram；Refer to Fig. 1, optical filter 10 includes the matrix that multiple filter unit 11, each filter unit 11 are two row two row
Unit, matrix unit includes: a first color filter disc 111 of diagonal angle deployment and a second color filter disc 112, and diagonal angle
Two the 3rd color filter discs 113 and 114 disposed.
Wherein it is desired to it is noted that the position of the first color filter disc, the second color filter disc and the 3rd color filter disc can
To dispose according to application needs.Such as, the portion of the color filter disc in each filter unit in optical filter as shown in Figure 1
Administration is: use the arrangement mode of 1 red 2 green 1 indigo plants to be arranged in BAYER (Bayer array), and the first color filter disc 111 is red (R) filter
Mating plate, the second color filter disc 112 is blue (B) optical filter, and the 3rd color filter disc 113 is green (Gr) and the filter of the 3rd color
Sheet 114 is green (Gb).
Can be the same or different it should be noted that the structure of each filter unit of the present embodiment optical filter is disposed,
In the present embodiment, it is preferred that the structure of each filter unit is disposed identical.
Owing to each color filter disc is only capable of one color component of acquisition, other two color components are required to pass through
Series of algorithms estimation obtains, such as the first color filter disc 111 in Fig. 1 is the image pixel position that red (R) optical filter is corresponding
Put, can only obtain the red component of correspondence, need to estimate the blue component corresponding with this location of pixels and green component；Or,
Such as the second color filter disc 112 in Fig. 1 is the image pixel positions that blue (B) optical filter is corresponding, can only obtain the indigo plant of correspondence
Colouring component, needs to estimate the red component corresponding with this location of pixels and green component.Therefore, the filter used based on the present embodiment
The image of mating plate shooting, owing to each location of pixels in whole image is required for estimation two color components of reduction, therefore, whole
The color rendition degree of individual image is the highest, affects the display effect of whole image.
In order to solve the problems referred to above, the image color processing method that the present invention provides introduces MEMS, according to optical filtering
The distributed architecture of the color filter disc in unit, determines default displacement, trigger MEMS according to default movement away from
Move to corresponding position shooting reference picture from controlling imageing sensor, thus obtain and same pixel position from reference picture
Put more true colors component to synthesize, improve the reduction degree of image color.Wherein, MEMS (MEMS, Micro-
Electro-Mechanical System), it is possible to it is called microelectromechanical systems, micro-system, micromechanics etc., is at microelectronics
Grow up on the basis of technology (semiconductor fabrication), merged photoetching, burn into thin film, LIGA, silicon micromachined, non-silicon
The high-tech electronic mechanical devices of the fabrication techniques such as micro Process and precision optical machinery processing.Its opereating specification in micrometer range, energy
Enough Bit andits control realizing precision, have the highest precision, and (i.e. MEMS drives imageing sensor every time to can reach pixel scale
The distance of movement can be suitable with the size of image sensor pixel).
Fig. 2 is the MEMS involved by the image color processing method of one embodiment of the application and imageing sensor
Structural representation, the 2 pairs of MEMSs (MEMS) drive the principle of imageing sensor motion to illustrate below in conjunction with the accompanying drawings,
Concrete, MEMS (MEMS) includes fixed electrode 21, float electrode 22 and can deformation connector 23.Float electrode 22 with
Fixed electrode 21 coordinates.Connector 23 is fixing connects fixed electrode 21 and float electrode 22.Fixed electrode 21 and float electrode 22
For producing electrostatic force under the effect of driving voltage.Connector 23 is for moving along float electrode 22 under the effect of electrostatic force
Direction deformation to allow float electrode 22 to move thus drive imageing sensor 30 to move.
Wherein it is desired to explanation, according to the difference of concrete application demand, corresponding MEMS is set and controls image
Sensor moves to different directions, such as: can be micro electronmechanical being horizontally and vertically respectively provided with of imageing sensor
System, thus MEMS can drive imageing sensor carry out level to the left or move right, level upwardly or downwardly
Mobile etc..Wherein, above-mentioned MEMS controls the step-length etc. that imageing sensor moves every time, can be by system according to great many of experiments
Data are demarcated, it is possible to arranged the most voluntarily by user.
Fig. 3 is the flow chart of the image color processing method of one embodiment of the application；As it is shown on figure 3, specifically can wrap
Include following steps:
S101, shoots the first two field picture at initial position to preview screen.
S102, trigger described MEMS by described imageing sensor to default first direction move a pixel away from
From to primary importance, and shoot the second two field picture in primary importance.
S103, triggers described MEMS and is moved to default second direction from primary importance by described imageing sensor
One pixel distance is to the second position, and second position shooting the 3rd two field picture.
Specifically, when shooting, terminal unit alignment shooting object is focused by user, completes defocused shooting with pre-
The first two field picture that picture of looking at is corresponding.
Shown in Fig. 4 is the color component schematic diagram obtained by optical filter in the first two field picture, such as:
The location of pixels a of Red lightscreening plate (R) 111 correspondence obtain for red component, green color filter (Gb) 114 is corresponding
Location of pixels b obtain for green component, the location of pixels c of blue color filter (B) 112 correspondence obtain for blue component.
Owing in each filter unit in the imageing sensor that the present invention relates to, distribution of color structure is two row two row
Matrix unit, matrix unit includes: a first color filter disc 111 of diagonal angle deployment and a second color filter disc 112, and
Two the 3rd color filter discs 113 and 114 that diagonal angle is disposed.As can be seen here, for same location of pixels, if one want to different
The optical filter of color obtains three color components respectively, on the basis of the first color component obtained in the first two field picture, and can
Control imageing sensor and move a pixel distance to the from initial position to default first direction triggering MEMS
One position, and shoot the second two field picture in primary importance, the second two field picture obtains second face corresponding with this location of pixels
Colouring component, the most again triggers MEMS control imageing sensor and moves one from primary importance to default second direction
Pixel distance is to the second position, and shoots the 3rd two field picture in the second position, obtains and this location of pixels in the 3rd two field picture
The 3rd corresponding color component.
Wherein it is desired to explanation, above-mentioned default first direction and second direction can according to reality application need into
Row is arranged.Such as: if the first direction preset is horizontal direction, then the second direction preset is longitudinal direction；Or, if presetting
First direction be longitudinal direction, then preset second direction be horizontal direction.Wherein, longitudinal direction is to be arranged in matrix
The line direction of filter unit, horizontal direction is the column direction of the filter unit being arranged in matrix.
Specifically, i.e. when to default first direction be to the right time, then to default second direction be upwards or to
Under；Or, when moving as time to the left to default first direction, then to default second direction be up or down；When in advance
If first direction be upwards time, then to default second direction be to the left or to the right；When being downward to default first direction
Time, then to default second direction be to the left or to the right.
In order to above-mentioned implementation process is more clearly described, it is illustrated below in conjunction with shown in Fig. 4 to Fig. 6.
Shown in Fig. 5 is the color component schematic diagram obtained by optical filter in the second two field picture；
Shown in Fig. 6 is the color component schematic diagram obtained by optical filter in the 3rd two field picture；
As Figure 4-Figure 6, (corresponding extraneous to scheme the reference pixel position d that bend filling dash area is selected
The certain point of the picture of scenery), as a example by this location of pixels d point, when initial position, i.e. MEMS does not drives image sensing
When device moves, this location of pixels is red (R) color component by the color component acquired in optical filter；MEMS drives
Imageing sensor is in such as Fig. 5 primary importance after the mobile pixel distance of default first direction (as a example by moving right)
State, this location of pixels is green (Gb) color component by the color component acquired in optical filter；Afterwards, based on shown in Fig. 5
The primary importance state being in, MEMS drives imageing sensor to default second direction (as a example by moving down) again
Being in second position state as shown in Figure 6 after a mobile pixel distance, this location of pixels is by the color acquired in optical filter
Component is blue (B) color component.Consequently, it is possible to enable to this location of pixels can obtain three primary colours component respectively.
It is, of course, understood that use the imageing sensor that this kind of mode moves, might not at each location of pixels
Can obtain three primary colours component, such as, in Fig. 4 to Fig. 6, grid is filled at dash area b as a example by location of pixels, at image
Before sensor moves, as shown in Figure 4, this location of pixels is divided for green (Gb) color by the color component acquired in optical filter
Amount, and when MEMS drive imageing sensor moves a pixel distance to after primary importance to first direction, such as Fig. 5 institute
Showing, this location of pixels is red (R) color component by the color component acquired in optical filter, when MEMS drives again
Imageing sensor moves a pixel distance to after the second position to second direction, and as shown in Figure 6, this location of pixels is by filtering
Color acquired in sheet remains as green (Gr) color component.Therefore, this location of pixels be only capable of acquisition two color components (green
Normal complexion is red), and still lack blue color component.
Or, such as, as in Fig. 4 to Fig. 6, horizontal line is filled at dash area c as a example by location of pixels, move at imageing sensor
Before Dong, as shown in Figure 4, this location of pixels is blue (B) color component by the color component acquired in optical filter, and when micro-
Mechatronic Systems drives imageing sensor to move a pixel distance to after primary importance to first direction, as it is shown in figure 5, this pixel
Position is green (Gr) color component by the color component acquired in optical filter, when MEMS drives image sensing again
Device moves a pixel distance to after the second position to second direction, and as shown in Figure 6, this location of pixels cannot be obtained by optical filter
Take color component.Therefore, this location of pixels is only capable of two color components of acquisition (blue and green), and still lacks red face
Colouring component.
It addition, at the location of pixels of some edge corresponding to optical filter, even if at imageing sensor in the manner described above
After mobile twice, also it is only capable of obtaining a color component, such as, fills pixel position at dash area a with vertical line in Fig. 4 to Fig. 6
Being set to example, before imageing sensor moves, as shown in Figure 4, this location of pixels by the color component acquired in optical filter is
Red (R) color component, and when MEMS drives imageing sensor to move a pixel distance to first to first direction
Behind position, as it is shown in figure 5, this location of pixels cannot obtain color component by optical filter, when MEMS band cardon again
As sensor moves a pixel distance to after the second position to second direction, as shown in Figure 6, this location of pixels still cannot lead to
Cross optical filter and obtain color component.Therefore, this location of pixels is only capable of one color component (red) of acquisition, and still lacks green
Normal complexion blue color component.
S104, according in described first two field picture, described second two field picture and described 3rd two field picture by described filter
Color component corresponding to each location of pixels in the preview screen that mating plate obtains, carries out synthesis and processes and generate the of described preview screen
Four two field pictures.
Specifically, by color component corresponding for pixel position each in above-mentioned preview screen is synthesized, some
The color component obtained at location of pixels has three, such as at the d shown in Fig. 4 to Fig. 6, location of pixels can obtain three colors
Component；The color component obtained at some location of pixels then only two, such as at the b shown in Fig. 4 to Fig. 6 and at c
Location of pixels is all only capable of obtaining two color components；The color component then only one of which even obtained at some location of pixels,
Such as location of pixels at a shown in Fig. 4 to Fig. 6 is only capable of obtaining a color component.
It is several that the most each pixel position can be obtained with the quantity of color component, is obtained at each location of pixels
The color component correspondence respectively obtained carries out synthesis process, and for color component lacking in each pixel position, some position
Place may lack a color component, and some position may lack two color components, and for color lacking in obtaining
Component, specifically can also be by color component lacking in evaluation method of the prior art acquisition.
Use the 4th two field picture of aforesaid way synthesis, compared to above-mentioned prior art, in some pixel position not
Need to carry out the estimation of color component, it is only necessary to carry out remaining the estimation of color component in partial pixel position, thus, greatly
Decrease the quantity of location of pixels needing to carry out estimating, alleviate workload, further, it is possible to reduce due to estimation institute as far as possible
The inaccuracy brought, improves accuracy and the verity of image color reduction.
The image color method of reducing that the present embodiment provides, moves by utilizing MEMS to control imageing sensor,
And on imageing sensor, it being provided with photosensitive pixel array and optical filter, optical filter includes multiple filter unit, and optical filter list
Including a first color filter disc, a second color filter disc and two the 3rd color filter discs in unit, filter unit is arranged into two
The matrix structure of row two row, has precise displacement and controls MEMS (having the control accuracy of the pixel scale) control of function
Imageing sensor moves a pixel distance along the first direction preset and the second direction of presetting, so that terminal unit is moving
Obtain the first two field picture before dynamic, after mobile first direction, obtain the second two field picture, after mobile second direction, obtain the 3rd frame
Image, and according to the color component of each location of pixels of each two field picture by the first two field picture, the second two field picture and the 3rd two field picture
Carry out being synthetically formed the 4th two field picture, i.e. final image, more color component in image pixel can be obtained thus, carry
The reduction effect of high realistic colour and picture quality.
For step 104 in above-described embodiment, can need to use different processing methods to pixel according to reality application
In position, the color component of disappearance is estimated, such as: color look-up table, interpolation method etc., in order to more clearly illustrate lacking
Lose the estimation process of color component, in conjunction with embodiment illustrated in fig. 7, be described as follows by interpolating estimation method:
Fig. 7 is the flow chart of the image color processing method of another embodiment of the application；As it is shown in fig. 7, based on above-mentioned
Embodiment, step 104 specifically includes:
S1041, according to described first two field picture, described second two field picture and described 3rd two field picture pass through
Color component corresponding to each location of pixels in the preview screen that optical filter obtains, obtain have simultaneously the first color component, second
Color component and the first location of pixels of the 3rd color component, and asynchronously there is the first color component, the second color is divided
Amount and the second location of pixels of the 3rd color component.
Specifically, based in above-described embodiment for Fig. 4 to Fig. 6 description understand, some location of pixels is obtained in that three
Individual color component, some location of pixels then can only obtain two color components or a color component.According to whether simultaneously
Obtaining the first color component, the second color component and the 3rd color component, being made a distinction by each location of pixels is the first picture
Element position and the second location of pixels, in order to these two kinds of different location of pixels are processed in different ways.
S1042, obtains, by default interpolation algorithm, the color component that all second location of pixels lack；
S1043, according to each color component of the second location of pixels all after interpolation processing, and all first location of pixels
Each color component carry out synthesis process generate the 4th two field picture.
The color component lacked for lacking the second pixel position correspondence of color component can be by the interpolation preset
Algorithm obtains, and specifically, the interpolation algorithm preset is it may be that nearest picture element interpolation algorithm (Nearest Neighbour
Interpolation), bilinear interpolation algorithm, bicubic interpolation algorithm, and fractal algorithm etc..So, each location of pixels
Place all can obtain three color components, so by have the first location of pixels of three color components the first color component,
Second color component and the 3rd color component directly synthesize, and will be obtained the pixel position of residue color component by interpolation algorithm
Put each color component synthesis at place, so, it is possible to obtain a 4th higher two field picture of color rendition degree i.e., finally scheme
Picture.
It addition, in the present embodiment, may be one owing to each pixel position can be obtained with the quantity of color component
Individual or two or three, for the location of pixels of three color components can not be obtained, if the most described second location of pixels has
One color component, then the interpolation algorithm by presetting obtains two other color component that all second location of pixels lack；
Or, if described second location of pixels has two color components, then the interpolation algorithm by presetting obtains all second pictures
The another one color component that element position lacks.
The image color method of reducing that the present embodiment provides, moves by utilizing MEMS to control imageing sensor,
And on imageing sensor, it being provided with photosensitive pixel array and optical filter, optical filter includes multiple filter unit, and optical filter list
Including a first color filter disc, a second color filter disc and two the 3rd color filter discs in unit, filter unit is arranged into two
The matrix structure of row two row, has precise displacement and controls MEMS (having the control accuracy of the pixel scale) control of function
Imageing sensor moves a pixel distance along the first direction preset and the second direction of presetting, so that terminal unit is moving
Obtain the first two field picture before dynamic, after mobile first direction, obtain the second two field picture, after mobile second direction, obtain the 3rd frame
Image, and according to the color component of each location of pixels of each two field picture by the first two field picture, the second two field picture and the 3rd two field picture
Carry out being synthetically formed the 4th two field picture, i.e. final image, thereby, it is possible to obtain more color component in image pixel, improve
The reduction effect of realistic colour and picture quality, and the color component that part is lacked, then drawn by interpolation method estimation,
The estimation efficiency of interpolation method is higher, and the accuracy of estimation is relatively close to real color component,.
In order to realize above-described embodiment, the application also proposes a kind of image color processing means.
Fig. 8 is the structural representation of the image color processing means of one embodiment of the application.
Device described in this image color processing means is applied in the terminal unit with shoot function, as in figure 2 it is shown, institute
The imaging modules stated in terminal unit includes: MEMS and imageing sensor, wherein,
Described MEMS controls described imageing sensor and moves, and described imageing sensor includes photosensitive pixel array,
And it is arranged on the optical filter on described photosensitive pixel array.
As it is shown in figure 1, described optical filter 10 includes the square that multiple filter unit 11, each filter unit 11 are two row two row
Array element, described matrix unit includes: a first color filter disc 111 of diagonal angle deployment and a second color filter disc 112, with
And two the 3rd color filter discs (113,114) that diagonal angle is disposed；
As shown in Figure 8, described image color processing means includes:
First processing module 41, for shooting the first two field picture at initial position to preview screen；
Second processing module 42, be used for triggering described MEMS by described imageing sensor from described initial position to
The first direction preset moves a pixel distance to primary importance, and shoots the second two field picture in described primary importance；
3rd processing module 43, be used for triggering described MEMS by described imageing sensor from described primary importance to
The second direction preset moves a pixel distance to the second position, and at described second position shooting the 3rd two field picture；
Synthesis module 44, for according in described first two field picture, described second two field picture and described 3rd two field picture
By the color component that each location of pixels in the described preview screen that described optical filter obtains is corresponding, carry out synthesis and process generation institute
State the 4th two field picture of preview screen.
In the present embodiment, if described default first direction is horizontal direction, the most described default second direction is vertical
To direction；Or, if described default first direction is longitudinal direction, the most described default second direction is horizontal direction.
It should be noted that the aforementioned explanation to image color processing method embodiment is also applied for this embodiment
Image color processing means, here is omitted.
The image color processing means of the embodiment of the present application, moves by utilizing MEMS to control imageing sensor,
And on imageing sensor, it being provided with photosensitive pixel array and optical filter, optical filter includes multiple filter unit, and optical filter list
Including a first color filter disc, a second color filter disc and two the 3rd color filter discs in unit, filter unit is arranged into two
The matrix structure of row two row, has precise displacement and controls MEMS (having the control accuracy of the pixel scale) control of function
Imageing sensor moves a pixel distance along the first direction preset and the second direction of presetting, so that terminal unit is moving
Obtain the first two field picture before dynamic, after mobile first direction, obtain the second two field picture, after mobile second direction, obtain the 3rd frame
Image, and according to the color component of each location of pixels of each two field picture by the first two field picture, the second two field picture and the 3rd two field picture
Carry out being synthetically formed the 4th two field picture, i.e. final image, more color component in image pixel can be obtained thus, carry
The reduction effect of high realistic colour and picture quality.
Fig. 9 is the structural representation of the image color processing means of another embodiment of the application.
As it is shown in figure 9, based on embodiment illustrated in fig. 8, described synthesis module 44 specifically includes: acquiring unit 441, calculating list
Unit 442 and signal generating unit 443.
Described acquiring unit 441 is used for: according to described first two field picture, described second two field picture and described 3rd frame
The color component that in the described preview screen obtained by described optical filter in image, each location of pixels is corresponding, obtains and has simultaneously
First color component, the second color component and the first location of pixels of the 3rd color component, and asynchronously there is the first color
Component, the second color component and the second location of pixels of the 3rd color component.
Described computing unit 442 is used for: obtain, by default interpolation algorithm, the color that all second location of pixels lack
Component.
Described signal generating unit 443 is used for: according to each color component of the second location of pixels all after interpolation processing, Yi Jisuo
The each color component having the first location of pixels carries out synthesis and processes the 4th two field picture generating described preview screen.
In the present embodiment, further, described computing unit 442 is used for: if described second location of pixels has one
Individual color component, then the interpolation algorithm by presetting obtains two other color component that all second location of pixels lack；Or
Person, if described second location of pixels has two color components, then the interpolation algorithm by presetting obtains all second pixels
The another one color component that position lacks.
It should be noted that the aforementioned explanation to image color processing method embodiment is also applied for this embodiment
Image color processing means, here is omitted.
In order to realize above-described embodiment, the application also proposes a kind of terminal unit.
Figure 10 is the structural representation of the terminal unit of one embodiment of the application.Terminal unit 1000 in the present embodiment
It can be the mobile phone etc. with shoot function.
As shown in Figure 10, this terminal unit, including: housing and the imaging modules 1000 being arranged in housing, wherein, described
Imaging modules 1000 includes: MEMS 20, imageing sensor 30, camera lens 1001, memorizer 1002 and processor 1003,
Described MEMS 20 controls described imageing sensor and moves,
Described imageing sensor includes photosensitive pixel array, and is arranged on the optical filter on described photosensitive pixel array,
Described optical filter includes the matrix unit that multiple filter unit, each filter unit are two row two row, and described matrix unit includes:
One the first color filter disc of diagonal angle deployment and a second color filter disc, and two the 3rd color filter discs that diagonal angle is disposed；
Described memorizer 1002 is used for storing executable program code；
Described processor 1003 is by reading the executable program code stored in memorizer 1002 to perform:
At initial position, preview screen shot the first two field picture；
Trigger described MEMS 20 by described imageing sensor 30 from described initial position to default first direction
A mobile pixel distance is to primary importance, and shoots the second two field picture in described primary importance；
Trigger described MEMS 20 by described imageing sensor 30 from described primary importance to default second direction
A mobile pixel distance is to the second position, and shoots the 3rd two field picture in the described second position；
According to described first two field picture, described second two field picture and described 3rd two field picture pass through described optical filter
Color component corresponding to each location of pixels in the described preview screen obtained, carries out synthesis and processes and generate the of described preview screen
Four two field pictures.
It should be noted that the aforementioned explanation to image color processing method embodiment is also applied for this embodiment
Image color processing means, here is omitted.
The terminal unit of the embodiment of the present application, the MEMS in this terminal unit controls imageing sensor and moves, and
Being provided with photosensitive pixel array and optical filter on imageing sensor, optical filter includes multiple filter unit, and filter unit
On include a first color filter disc, a second color filter disc and two the 3rd color filter discs, filter unit is arranged into two row
The matrix structure of two row, has precise displacement and controls MEMS (having the control accuracy of pixel scale) the control figure of function
As sensor moves a pixel distance, so that terminal unit is moving along the first direction preset and the second direction of presetting
Front acquisition the first two field picture, obtains the second two field picture after mobile first direction, obtains the 3rd frame figure after mobile second direction
Picture, and according to the color component of each location of pixels of each two field picture, the first two field picture, the second two field picture and the 3rd two field picture are entered
Row is synthetically formed the 4th two field picture, i.e. final image, can obtain more color component in image pixel thus, improves
The reduction effect of realistic colour and picture quality.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the application.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combination.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the present application, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
In flow chart or at this, any process described otherwise above or method description are construed as, and expression includes
One or more is for realizing the module of code, fragment or the portion of the executable instruction of the step of specific logical function or process
Point, and the scope of the preferred implementation of the application includes other realization, wherein can not by shown or discuss suitable
Sequence, including according to involved function by basic mode simultaneously or in the opposite order, performs function, and this should be by the application
Embodiment person of ordinary skill in the field understood.
Represent in flow charts or the logic described otherwise above at this and/or step, for example, it is possible to be considered as to use
In the sequencing list of the executable instruction realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (system such as computer based system, including processor or other can hold from instruction
Row system, device or equipment instruction fetch also perform the system instructed) use, or combine these instruction execution systems, device or set
Standby and use.For the purpose of this specification, " computer-readable medium " can be any can to comprise, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or combines these instruction execution systems, device or equipment and the dress that uses
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following: have the electricity of one or more wiring
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read only memory
(ROM), erasable read only memory (EPROM or flash memory), the fiber device edited, and portable optic disk is read-only deposits
Reservoir (CDROM).It addition, computer-readable medium can even is that and can print the paper of described program thereon or other are suitable
Medium, because then can carry out editing, interpreting or if desired with it such as by paper or other media are carried out optical scanning
His suitable method is processed to electronically obtain described program, is then stored in computer storage.
Should be appreciated that each several part of the application can realize by hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method in memory and can be performed by suitable instruction execution system with storage
Or firmware realizes.Such as, if realized with hardware, with the most the same, available well known in the art under
Any one or their combination in row technology realize: have the logic gates for data signal realizes logic function
Discrete logic, there is the special IC of suitable combination logic gate circuit, programmable gate array (PGA), on-the-spot
Programmable gate array (FPGA) etc..
Claims (9)
1. an image color processing method, it is characterised in that described method is applied in the terminal unit with shoot function,
Imaging modules in described terminal unit includes: MEMS and imageing sensor, wherein,
Described MEMS controls described imageing sensor and moves, and described imageing sensor includes photosensitive pixel array, and
Being arranged on the optical filter on described photosensitive pixel array, described optical filter includes that multiple filter unit, each filter unit are two
The matrix unit of row two row, described matrix unit includes: a first color filter disc and second color that diagonal angle is disposed are filtered
Sheet, and two the 3rd color filter discs that diagonal angle is disposed；
Said method comprising the steps of:
At initial position, preview screen shot the first two field picture；
Trigger described MEMS and described imageing sensor is moved one from described initial position to default first direction
Pixel distance is to primary importance, and shoots the second two field picture in described primary importance；
Trigger described MEMS and described imageing sensor is moved one from described primary importance to default second direction
Pixel distance is to the second position, and shoots the 3rd two field picture in the described second position；
Obtained by described optical filter according in described first two field picture, described second two field picture and described 3rd two field picture
Described preview screen in color component corresponding to each location of pixels, carry out synthesis and process the 4th frame generating described preview screen
Image.
Method the most according to claim 1, it is characterised in that
If described default first direction is horizontal direction, the most described default second direction is longitudinal direction；
Or,
If described default first direction is longitudinal direction, the most described default second direction is horizontal direction.
Method the most according to claim 1, it is characterised in that described according to described first two field picture, described second frame figure
As and described 3rd two field picture in each location of pixels is corresponding in the preview screen that obtained by described optical filter color divide
Amount, carries out synthesis and processes generation the 4th two field picture, including:
Obtained by described optical filter according in described first two field picture, described second two field picture and described 3rd two field picture
Described preview screen in color component corresponding to each location of pixels, obtain there is the first color component simultaneously, the second color is divided
Amount and the first location of pixels of the 3rd color component, and asynchronously there is the first color component, the second color component and the
Second location of pixels of three color components；
The color component that all second location of pixels lack is obtained by default interpolation algorithm；
According to each color component of the second location of pixels all after interpolation processing, and each color of all first location of pixels is divided
Amount carries out synthesis and processes the 4th two field picture generating described preview screen.
Method the most according to claim 3, it is characterised in that described by default interpolation algorithm all second pictures of acquisition
The color component that element position lacks, including:
If described second location of pixels has a color component, then the interpolation algorithm by presetting obtains all second pixels
Two other color component that position lacks；Or,
If described second location of pixels has two color components, then the interpolation algorithm by presetting obtains all second pixels
The another one color component that position lacks.
5. an image color processing means, it is characterised in that described device is applied in the terminal unit with shoot function,
Imaging modules in described terminal unit includes: MEMS and imageing sensor, wherein,
Described MEMS controls described imageing sensor and moves, and described imageing sensor includes photosensitive pixel array, and
Being arranged on the optical filter on described photosensitive pixel array, described optical filter includes that multiple filter unit, each filter unit are two
The matrix unit of row two row, described matrix unit includes: a first color filter disc and second color that diagonal angle is disposed are filtered
Sheet, and two the 3rd color filter discs that diagonal angle is disposed；
Described device includes:
First processing module, for shooting the first two field picture at initial position to preview screen；
Second processing module, for trigger described MEMS by described imageing sensor from described initial position to default
First direction moves a pixel distance to primary importance, and shoots the second two field picture in described primary importance；
3rd processing module, for trigger described MEMS by described imageing sensor from described primary importance to default
Second direction moves a pixel distance to the second position, and shoots the 3rd two field picture in the described second position；
Synthesis module, for passing through institute according in described first two field picture, described second two field picture and described 3rd two field picture
State the color component that in the described preview screen that optical filter obtains, each location of pixels is corresponding, carry out synthesis and process the described preview of generation
4th two field picture of picture.
Image color processing means the most according to claim 5, it is characterised in that
If described default first direction is horizontal direction, the most described default second direction is longitudinal direction；
Or,
If described default first direction is longitudinal direction, the most described default second direction is horizontal direction.
Image color processing means the most according to claim 5, it is characterised in that described synthesis module includes:
Acquiring unit, for passing through institute according in described first two field picture, described second two field picture and described 3rd two field picture
Stating the color component that in the described preview screen that optical filter obtains, each location of pixels is corresponding, acquisition has the first color simultaneously and divides
Amount, the second color component and the first location of pixels of the 3rd color component, and asynchronously have the first color component, second
Color component and the second location of pixels of the 3rd color component；
Computing unit, for obtaining, by default interpolation algorithm, the color component that all second location of pixels lack；
Signal generating unit, for each color component according to the second location of pixels all after interpolation processing, and all first pixels
Each color component of position carries out synthesis and processes the 4th two field picture generating described preview screen.
Image color processing means the most according to claim 7, it is characterised in that described computing unit is used for:
If described second location of pixels has a color component, then the interpolation algorithm by presetting obtains all second pixels
Two other color component that position lacks；Or,
If described second location of pixels has two color components, then the interpolation algorithm by presetting obtains all second pixels
The another one color component that position lacks.
9. a terminal unit, it is characterised in that including: housing and the imaging modules being arranged in described housing, wherein, described
Imaging modules includes: MEMS, imageing sensor, camera lens, memorizer and processor,
Described MEMS controls described imageing sensor and moves,
Described imageing sensor includes photosensitive pixel array, and is arranged on the optical filter on described photosensitive pixel array, described
Optical filter includes the matrix unit that multiple filter unit, each filter unit are two row two row, and described matrix unit includes: diagonal angle
The first color filter disc disposed and a second color filter disc, and two the 3rd color filter discs that diagonal angle is disposed；
Described memorizer is used for storing executable program code；
Described processor is by reading the executable program code stored in memorizer to perform:
At initial position, preview screen shot the first two field picture；
Trigger described MEMS and described imageing sensor is moved one from described initial position to default first direction
Pixel distance is to primary importance, and shoots the second two field picture in described primary importance；
Trigger described MEMS and described imageing sensor is moved one from described primary importance to default second direction
Pixel distance is to the second position, and shoots the 3rd two field picture in the described second position；
Obtained by described optical filter according in described first two field picture, described second two field picture and described 3rd two field picture
Described preview screen in color component corresponding to each location of pixels, carry out synthesis and process the 4th frame generating described preview screen
Image.
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| PCT/CN2017/084031 WO2018018995A1 (en) | 2016-07-29 | 2017-05-11 | Image color processing method and apparatus, and terminal device |
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