CN108986072A - Moire fringes method for quantitatively evaluating and product design method, computer-readable medium and electronic equipment - Google Patents
Moire fringes method for quantitatively evaluating and product design method, computer-readable medium and electronic equipment Download PDFInfo
- Publication number
- CN108986072A CN108986072A CN201810555728.9A CN201810555728A CN108986072A CN 108986072 A CN108986072 A CN 108986072A CN 201810555728 A CN201810555728 A CN 201810555728A CN 108986072 A CN108986072 A CN 108986072A
- Authority
- CN
- China
- Prior art keywords
- moire fringes
- image
- evaluated
- contrast sensitivity
- period
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20048—Transform domain processing
- G06T2207/20056—Discrete and fast Fourier transform, [DFT, FFT]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20212—Image combination
- G06T2207/20221—Image fusion; Image merging
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Processing (AREA)
- Image Analysis (AREA)
Abstract
The embodiment of the present invention provides a kind of moire fringes method for quantitatively evaluating and product design method, computer-readable medium and electronic equipment, is related to field of display technology, can assess in moire fringes of the Design Stage to product.A kind of moire fringes method for quantitatively evaluating, comprising: obtain at least two images to be evaluated, each width at least two images to be evaluated includes the unit pattern of periodic arrangement；By at least two image superpositions to be evaluated, the second image is obtained；According to second image and viewing distance, a mole print image is obtained；According to described mole of print image, the first moire fringes period and the first contrast sensitivity are obtained.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of moire fringes method for quantitatively evaluating and product design method,
Computer-readable medium and electronic equipment.
Background technique
In display field, it is particularly shown or touch-control effect to reach, can be often combined using different periodic structures, such as
To prepare touching display screen, touch-control structure need to be added on display base plate.
Still by taking touching display screen as an example, in the touch-control product of current main-stream, due in touch-control structure and display base plate
Black matrix is two kinds of different cycles structures, thus will lead to and high-frequency moire fringes phenomenon occur, to influence touch-control product
Display effect.
To solve the problems, such as moire fringes, in New Product Development Process, kinds of schemes need to be designed and prepare sample and verified,
The required at high cost and development time is long.
Summary of the invention
The embodiment of the present invention provides a kind of moire fringes method for quantitatively evaluating and product design method, computer-readable medium
And electronic equipment, it can be assessed in moire fringes of the Design Stage to product.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, providing a kind of moire fringes method for quantitatively evaluating, comprising: at least two images to be evaluated are obtained, it is described
Each width at least two images to be evaluated includes the unit pattern of periodic arrangement；It will at least two figures to be evaluated
As superposition, the second image is obtained；According to second image and viewing distance, a mole print image is obtained；According to the moire fringes
Image obtains the first moire fringes period and the first contrast sensitivity.
Optionally, the moire fringes method for quantitatively evaluating, further includes: display compares quick using the moire fringes period as abscissa
Sensitivity is the coordinate system of ordinate；In the coordinate system, it identifies the first moire fringes period and first comparison is sensitive
The coordinate points position of degree, and show contrast sensitivity function curve.
On this basis, optionally, the moire fringes method for quantitatively evaluating, further includes: according to described first identified
The coordinate points of moire fringes period and first contrast sensitivity and the contrast sensitivity function curve, judge the coordinate points
With the relative position of the contrast sensitivity function curve；If the coordinate points are located at the upper of the contrast sensitivity function curve
Side then generates the moire fringes that two images to be evaluated generate described at least and is not easy the prompt being identified by the human eye；If the coordinate points
Positioned at the lower section of the contrast sensitivity function curve, then generates the moire fringes that two images to be evaluated generate described at least and be easy
The prompt being identified by the human eye.
Optionally, according to described mole of print image, obtained for the first moire fringes period, comprising: to described mole of print image into
Row Fourier transform obtains at least one contrast value, and obtains and each of at least one contrast value comparison
The angle value corresponding second moire fringes period；Each contrast value is multiplied with contrast sensitivity function, obtains equivalent contrast
Value；The equivalent contrast maximum value corresponding second moire fringes period is chosen as the first moire fringes period.
Optionally, according to described mole of print image, the first contrast sensitivity is obtained, including；To described mole of print image into
Row grey level histogram processing, to obtain corresponding histogram image；Maximum gradation value and minimum gradation value are chosen, and utilizes formula
One is calculated first contrast sensitivity.
Formula one are as follows:Wherein, CS is first contrast sensitivity, LmaxFor maximum gradation value,
LminFor minimum gradation value.
Optionally, at least two images to be evaluated are obtained, each width at least two images to be evaluated includes
The unit pattern of periodic arrangement, comprising: the design parameter of every kind of periodic structure at least two periodic structures is obtained, point
Other production unit pattern；A figure to be evaluated is obtained after carrying out array to the unit pattern for any unit pattern
Picture.
Optionally, at least two images to be evaluated are obtained, each width at least two images to be evaluated includes
The unit pattern of periodic arrangement, comprising: the design drawing of at least two periodic structures of input；It is intercepted in each design drawing respectively
A unit pattern；A figure to be evaluated is obtained after carrying out array to the unit pattern for any unit pattern
Picture.
Optionally, by least two image superpositions to be evaluated, the second image is obtained, comprising: will at least two width
The corresponding array of image data of image to be evaluated, makees convolution in the spatial domain or makees product in a frequency domain, obtain described
Two images.
Optionally, according to second image and viewing distance, a mole print image is obtained, comprising: to second image
Fourier transform is carried out to be filtered according to viewing distance with contrast sensitivity function；And inverse fourier transform is carried out, it obtains
Described mole of print image.
Optionally, image to be evaluated is one of black matrix pattern, touch pattern, grating pattern.
Second aspect provides a kind of product design method, comprising: moire fringes method for quantitatively evaluating described in first aspect；
Wherein, by changing at least two images to be evaluated, the parameter of the unit pattern of at least one image to be evaluated obtains multiple groups
First moire fringes period and the first contrast sensitivity.
Optionally, the product design method, further includes: choose optimal one group of first moire fringes period and the first comparison
The corresponding parameter of susceptibility, the parameter as at least two periodic structure being applied in the product.
The third aspect provides a kind of computer-readable medium, is stored thereon with computer program, the computer program quilt
When execution, moire fringes method for quantitatively evaluating as described in relation to the first aspect is realized.
Fourth aspect provides a kind of electronic equipment, comprising: processor, memory；The memory for store one or
Multiple programs；When one or more of programs are executed by the processor, moire fringes amount as described in relation to the first aspect is realized
Change evaluation method.
The embodiment of the present invention provides a kind of moire fringes method for quantitatively evaluating and device, product design method, computer can
Read medium and electronic equipment, by the way that at least two image superpositions to be evaluated are obtained the second image, and due to each it is to be evaluated
Image includes the unit pattern of periodic arrangement, thus, after obtaining the second image, moire fringes can be obtained according to viewing distance
Image, be based on this, after obtaining the first moire fringes period and the first contrast sensitivity by a mole print image, can know this at least two
The severity of moire fringes caused by periodic structure corresponding to image to be evaluated.Since this method can be in product design
Stage assesses the moire fringes of product, thus, cost and development time can be substantially reduced.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow diagram of moire fringes method for quantitatively evaluating provided by the invention；
Fig. 2 is the flow diagram of another moire fringes method for quantitatively evaluating provided by the invention；
Fig. 3 is one kind provided by the invention using the moire fringes period as abscissa, and contrast sensitivity is the coordinate of ordinate
In system, the schematic diagram of the coordinate points and contrast sensitivity function curve of the first moire fringes period and the first contrast sensitivity；
Fig. 4 a is the schematic diagram of a unit pattern provided by the invention；
Fig. 4 b carries out the image to be evaluated obtained after array to the unit pattern in Fig. 4 a；
Fig. 5 a is the schematic diagram of another unit pattern provided by the invention；
Fig. 5 b carries out another image to be evaluated obtained after array to the unit pattern in Fig. 5 a；
Fig. 6 is the schematic diagram provided by the invention by the second image obtained after two image superpositions to be evaluated；
Fig. 7 is a kind of schematic diagram of mole print image provided by the invention；
Fig. 8 is that a kind of basis mole print image provided by the invention obtains the flow diagram in the first moire fringes period；
Fig. 9 is a kind of contrast distribution schematic diagram provided by the invention；
Figure 10 is provided by the invention a kind of to be multiplied contrast value with contrast sensitivity function to obtain equivalent contrast value
Schematic diagram；
Figure 11 is that a kind of basis mole print image provided by the invention obtains the flow diagram of the first contrast sensitivity；
Figure 12 is a kind of schematic diagram of grey level histogram provided by the invention；And
Figure 13 is directed to specific at least two periodic structure, moire fringes corresponding to different parameters to be provided by the invention
Evaluation result.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In actual product, the superposition of two or more different periodic structures will generate moire fringes effect.And it is somebody's turn to do
It is a mole print image that moire fringes effect, which is showed,.
For this product at least two periodic structures, present invention aims at deposit the product in design
Moire fringes carry out quantitatively evaluating, so that the moire fringes problem of product can be understood without actually going to watch on product.From
And in Design Stage, to solve the problems, such as that moire fringes provide conveniently.
Based on this, the embodiment of the present invention provides a kind of moire fringes method for quantitatively evaluating, as shown in Figure 1, comprising:
S10, at least two images to be evaluated are obtained, each width at least two images to be evaluated includes the period
Property arrangement unit pattern.
It should be noted that the pattern at least two images to be evaluated is not exclusively.
One of every image corresponding product to be evaluated periodic structure.Wherein, in the embodiment of the present invention, " structure " can
It is interpreted as the component part of product, and " pattern " can then regard " structure " as in the two-dimensional surface upslide perpendicular to its thickness direction
The figure that shadow is presented.
Unit pattern constitutes the smallest repetitive unit of image to be evaluated.
In some embodiments, image to be evaluated is one of black matrix pattern, touch pattern, grating pattern.
Black matrix structure in black matrix pattern corresponding product, the touch-control structure in touch pattern corresponding product, raster pattern
Optical grating construction in case corresponding product.Wherein, touch pattern can be the touch pattern of corresponding metal touch-control structure, be also possible to
The touch pattern of corresponding transparent touch structure.
Based on this, the product can be touching display screen, double boxes (dual cell) display screen, with touch function
Double box display screens, AR (Augmented Reality, augmented reality) or VR (Virtual Reality, virtual reality) product.
S20, at least two image superpositions to be evaluated by described in, obtain the second image.
S30, according to second image and viewing distance, obtain a mole print image.
Since mole print image changes due to parallax effect with observer position, setting viewing distance is needed herein, no
Same viewing distance, obtained mole of print image difference.
S40, mole print image according to, obtain the first moire fringes period and the first contrast sensitivity.
First moire fringes period is bigger, the first contrast sensitivity is bigger, and moire fringes are more difficult to observed person and see, that is, this is extremely
The corresponding periodic structure of few two images to be evaluated when product is shown, the moire fringes of generation on display effect influence compared with
It is small.
The embodiment of the present invention provides a kind of moire fringes method for quantitatively evaluating, by will at least two image superpositions to be evaluated obtain
To the second image, and since each image to be evaluated includes the unit pattern of periodic arrangement, thus, when obtaining the second figure
As after, mole print image can be obtained according to viewing distance, be based on this, the first moire fringes period and the are obtained by a mole print image
After one contrast sensitivity, the tight of moire fringes caused by periodic structure corresponding at least two images to be evaluated can be known
Weight degree.Since this method can be assessed in moire fringes of the Design Stage to product, thus, can substantially reduce cost with
And the development time.
Optionally, as shown in Fig. 2, the moire fringes method for quantitatively evaluating further include:
Using the moire fringes period as abscissa, contrast sensitivity is the coordinate system of ordinate for S50, display；In the coordinate system,
The coordinate points position in the first moire fringes period and first contrast sensitivity is identified, and shows contrast sensitivity function
Curve.
Exemplary, as shown in figure 3, indicating the moire fringes period with MC, CS indicates that contrast sensitivity can be drawn in a coordinate system
It produces contrast sensitivity function curve (curve in Fig. 3), and by the coordinate in the first moire fringes period and the first contrast sensitivity
Point position is identified.Wherein, the coordinate point of the first moire fringes period and the first contrast sensitivity is identified in Fig. 3 with dot
It sets, but embodiment is not limited to this for this hair, the seat in the first moire fringes period and the first contrast sensitivity can be identified with arbitrary graphic
Punctuate.
On this basis, according to the coordinate points in the first moire fringes period and first contrast sensitivity that identify
With the contrast sensitivity function curve, the opposite position of the coordinate points Yu the contrast sensitivity function curve can also be judged
It sets；If the coordinate points are located at the top of the contrast sensitivity function curve, at least two images to be evaluated are generated
The moire fringes of generation are not easy the prompt being identified by the human eye；If the coordinate points are located under the contrast sensitivity function curve
Side then generates the moire fringes that two images to be evaluated generate described at least and is easy the prompt being identified by the human eye.
That is, by the relative position of the coordinate points position and contrast sensitivity function curve that identify, if coordinate points position
Positioned at the top of contrast sensitivity function curve, then it represents that moire fringes are not easy to be identified by the human eye, if coordinate points position is located at comparison
The lower section of sensitivity function curve, then it represents that moire fringes are easy to be identified by the human eye, thus, moire fringes feelings can be understood more intuitively
Condition.
In some embodiments, at least two images to be evaluated are obtained in S10, at least two images to be evaluated
Each width includes the unit pattern of periodic arrangement, comprising: obtains every kind of periodic structure at least two periodic structures
Design parameter, respectively production unit pattern；It is obtained after carrying out array to the unit pattern for any unit pattern
To an image to be evaluated.
With two kinds of periodic structures, and for two kinds of periodic structures are respectively metal touch-control structure and black matrix.
It can be produced as shown in fig. 4 a for metal touch-control structure according to metal line width, the opposite side spacing of diamond shape electrode and angle
Width image to be evaluated as shown in Figure 4 b can be obtained after the unit pattern array in unit pattern.
Another unit pattern as shown in Figure 5 a can be produced according to the size of sub-pix, aperture opening ratio for black matrix,
After the unit pattern array, another width image to be evaluated as shown in Figure 5 b can be obtained.
In some embodiments, after obtaining every image to be evaluated, identical size can be intercepted (that is, long and width is homogeneous
Deng), so that every image to be evaluated all has identical length and identical width.In this way, in image superposition to be evaluated, it can
Improve processing speed and efficiency.
In further embodiments, at least two images to be evaluated are obtained in S10, at least two images to be evaluated
Each width include periodic arrangement unit pattern, comprising: input at least two periodic structures design drawing；It cuts respectively
Take a unit pattern in each design drawing；It is obtained after carrying out array to the unit pattern for any unit pattern
To an image to be evaluated.
It should be noted that when obtaining at least two unit patterns after intercepting a unit pattern to each design drawing.
Still with two kinds of periodic structures, and two kinds of periodic structures are respectively metal touch-control structure and black matrix is
Example.For the design drawing of metal touch-control structure, the unit pattern of the design drawing of interception as shown in fig. 4 a, by the unit pattern battle array
After column, width image to be evaluated as shown in Figure 4 b can be obtained.
For the design drawing of black matrix, the unit pattern of the design drawing of interception is as shown in Figure 5 a, by the unit pattern battle array
After column, another width image to be evaluated as shown in Figure 5 b can be obtained.
In some embodiments, at least two image superpositions to be evaluated are obtained into the second image in S20, comprising: will
The corresponding array of image data of at least two images to be evaluated makees convolution in the spatial domain or makees to multiply in a frequency domain
Product, obtains the second image.
Still with two kinds of periodic structures, and two kinds of periodic structures are respectively metal touch-control structure and black matrix is
Example.After two image superpositions to be evaluated, the second image as shown in FIG. 6 can be obtained.
One skilled in the art will appreciate that human eye can be visually seen is pattern itself for image to be evaluated, and inside
When portion's signal processing, then every image to be evaluated can correspond to an array of image data, according to the array of image data, can present
Corresponding image to be evaluated.
In some embodiments, a mole print image is obtained, comprising: right according to second image and viewing distance in S30
Second image carries out Fourier transform and is filtered according to viewing distance with contrast sensitivity function；And carry out Fourier
Inverse transformation obtains mole print image.
The principle being filtered with contrast sensitivity function are as follows: by contrast sensitivity function image corresponding with the second image
Data array makees convolution in the spatial domain or makees product in a frequency domain, realizes filtering.
Contrast sensitivity function CSF are as follows:
Wherein, CPDxIndicate horizontal direction per the periodicity in once range of visibility, CPDyIndicate vertical direction per once sight
Periodicity in range.CPDxAnd CPDyIt is related with viewing distance.Calculating CPDxAnd CPDyWhen can choose wherein one it is to be evaluated
Image.
By taking the second image shown in fig. 6 as an example, after Fourier transform, filtering, inverse fourier transform, it can be obtained as schemed
Mole print image shown in 7.
In some embodiments, the first moire fringes period was obtained according to mole print image in S40, as shown in figure 8,
Include:
S41, a Fourier transform is carried out to mole print image, obtains at least one contrast value, and obtain with it is described at least
Each of one contrast value contrast value corresponding second moire fringes period.
When at least two periodic structures are applied, theoretically to the quantity of the contributive moire fringes of mole print image
Infinite, but only limited quantity is to be perceived in these moire fringes.That is to say, in mole print image may and not only
There is only a kind of moire fringes of shape.
Based on this, after carrying out Fourier transform to mole print image, contrast distribution figure for example shown in Fig. 9 can be obtained.
The moire fringes of each shape two after Fourier transform in corresponding diagram 9 are in the horizontal direction or vertical direction in mole print image
Contrast value that is symmetrical, being answered according to these point each pair of point, wherein two symmetrical corresponding identical contrasts of point
Value.
In the contrast distribution figure of Fig. 9, left side abscissa is the vertical period of moire fringes, is expressed as f (x)；Ordinate is
The horizontal cycle of moire fringes, is expressed as f (y).Color gradient is presented in right side, and different colors represents different contrast values.
For a kind of moire fringes, according to the corresponding point in Fig. 9, due to knowing the value of f (x) He f (y), according to rubbing
That line Period Formula, it is known that the corresponding second moire fringes period f (i) of the moire fringes, i.e.,I takes difference
Value, represent moire fringes of different shapes.
S42, each contrast value is multiplied with contrast sensitivity function, obtains equivalent contrast value.
Contrast sensitivity function herein is same as described above, and details are not described herein.
With shown in Figure 10, square represents each contrast value in figure, when each contrast value is multiplied with contrast sensitivity function
Afterwards, the circled positions into figure are corresponded to, to know corresponding equivalent contrast value.
It should be noted that, although there are three pairs of symmetric points in Fig. 9, but it is located at the contrast value of two pairs of symmetric points in outside
It is identical, therefore, corresponding into Figure 10, contrast value there are two practical.Two pairs of symmetrical put positioned at outside indicate to rub
Your line figure is identical, but inclined direction is different.
S43, the equivalent contrast maximum value corresponding second moire fringes period is chosen as the first moire fringes period.
Herein, the equivalent contrast maximum value corresponding second moire fringes period is chosen as the first moire fringes period,
Be because equivalent contrast it is bigger, it is easier to be identified by the human eye.
Since contrast value and the second moire fringes period correspond, after choosing equivalent contrast maximum value, this is equivalent
The corresponding contrast value of contrast is known, thus, is also known that for the second moire fringes period.
By S41~S43, can be chosen in mole print image in each shape moire fringes corresponding second moire fringes period
A maximum second moire fringes period, the first moire fringes period as this mole of print image.
In some embodiments, the first contrast sensitivity is obtained according to mole print image in S40, as shown in figure 11,
Include:
S44, grey level histogram processing is carried out to mole print image, to obtain corresponding histogram image.
After carrying out Fourier transform to mole print image, grey level histogram shown in such as Figure 12 can be obtained.Wherein, horizontal seat
It is designated as gray value.
S45, maximum gradation value and minimum gradation value are chosen, and the first comparison sensitivity is calculated using formula one
Degree；Formula one are as follows:Wherein, CS is first contrast sensitivity, LmaxFor maximum gradation value, LminFor
Minimum gradation value.
According to Figure 12, maximum gradation value L can be therefrom chosenmaxWith minimum gradation value Lmin(being shown in Figure 12 with circle), from
And the first contrast sensitivity CS can be calculated according to formula one.
It should be noted that due toAnd contrast sensitivity and comparison are quick
There are reciprocal relations for sensitivity threshold value, and therefore, the first contrast sensitivity CS can be calculated by formula one.
The embodiment of the present invention by carrying out grey level histogram processing to mole print image, and according to formula one, can be easier to
Obtain the first contrast sensitivity.
The embodiment of the present invention also provides a kind of product design method, comprising: above-mentioned moire fringes method for quantitatively evaluating；Its
In, by changing at least two images to be evaluated, the parameter of the unit pattern of at least one image to be evaluated obtains multiple groups the
One moire fringes period and the first contrast sensitivity.
That is, passing through moire fringes quantitatively evaluating side to the every change primary parameter of the unit pattern of at least one image to be evaluated
One group of first moire fringes period and the first contrast sensitivity can be obtained in method.
On this basis, the product design method further include: choose optimal one group of first moire fringes period and first
The corresponding parameter of contrast sensitivity, the parameter as at least two periodic structure being applied in the product.
Still with two kinds of periodic structures, and two kinds of periodic structures are respectively metal touch-control structure and black matrix is
Example.Can be by changing the angle of touch-control structure, and it is based on above-mentioned moire fringes method for quantitatively evaluating, respectively to different angles
Both periodic structures are evaluated.
As shown in figure 13, each dot represents the different angle degrees of both periodic structures (remaining parameter is identical)
Under, corresponding one group of first moire fringes period and the first contrast sensitivity.Based on this, can from several groups the first moire fringes period and
In first contrast sensitivity (in i.e. several dots), optimal one group of first moire fringes period and the first contrast sensitivity are chosen
(66 dot identified in Figure 13), and group the first moire fringes period and the corresponding periodic structure of the first contrast sensitivity are answered
For in product, moire fringes to be least easy to be identified by the human eye.
It should be noted that number of the mark beside dot is only the respectively different dot in area in Figure 13, to know
The parameter of periodic structure corresponding to each dot in road.
In addition, above-mentioned be only illustrated for changing angle, but the embodiment of the present invention not county and this, other parameters example
Such as line width, spacing are changeable.
The embodiment of the present invention also provides a kind of computer-readable medium, is stored thereon with computer program, the computer
Program is performed, and realizes such as above-mentioned moire fringes method for quantitatively evaluating.
The embodiment of the present invention also provides a kind of electronic equipment, comprising: processor, memory；The memory is for storing
One or more programs；When one or more of programs are executed by the processor, realize that above-mentioned moire fringes such as quantify
Evaluation method.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (14)
1. a kind of moire fringes method for quantitatively evaluating characterized by comprising
At least two images to be evaluated are obtained, each width at least two images to be evaluated includes periodic arrangement
Unit pattern；
By at least two image superpositions to be evaluated, the second image is obtained；
According to second image and viewing distance, a mole print image is obtained；
According to described mole of print image, the first moire fringes period and the first contrast sensitivity are obtained.
2. moire fringes method for quantitatively evaluating according to claim 1, which is characterized in that further include: display is with moire fringes week
Phase is abscissa, and contrast sensitivity is the coordinate system of ordinate；In the coordinate system, identify the first moire fringes period and
The coordinate points position of first contrast sensitivity, and show contrast sensitivity function curve.
3. moire fringes method for quantitatively evaluating according to claim 2, which is characterized in that further include: according to the institute identified
State the first moire fringes period and first contrast sensitivity coordinate points and the contrast sensitivity function curve, described in judgement
The relative position of coordinate points and the contrast sensitivity function curve；
If the coordinate points are located at the top of the contrast sensitivity function curve, at least two images to be evaluated are generated
The moire fringes of generation are not easy the prompt being identified by the human eye；
If the coordinate points are located at the lower section of the contrast sensitivity function curve, at least two images to be evaluated are generated
The moire fringes of generation are easy the prompt being identified by the human eye.
4. moire fringes method for quantitatively evaluating according to claim 1, which is characterized in that according to described mole of print image, obtain
To the first moire fringes period, comprising:
Fourier transform is carried out to described mole of print image, obtains at least one contrast value, and obtain with it is described at least one
Each of contrast value contrast value corresponding second moire fringes period；
Each contrast value is multiplied with contrast sensitivity function, obtains equivalent contrast value；
The equivalent contrast maximum value corresponding second moire fringes period is chosen as the first moire fringes period.
5. moire fringes method for quantitatively evaluating according to claim 1, which is characterized in that according to described mole of print image, obtain
To the first contrast sensitivity, including；
Grey level histogram processing is carried out to described mole of print image, to obtain corresponding histogram image；
Maximum gradation value and minimum gradation value are chosen, and first contrast sensitivity is calculated using formula one；
Formula one are as follows:Wherein, CS is first contrast sensitivity, LmaxFor maximum gradation value, LminFor
Minimum gradation value.
6. moire fringes method for quantitatively evaluating according to claim 1, which is characterized in that obtain at least two figures to be evaluated
Picture, each width at least two images to be evaluated include the unit pattern of periodic arrangement, comprising:
The design parameter of every kind of periodic structure at least two periodic structures is obtained, respectively production unit pattern；
An image to be evaluated is obtained after carrying out array to the unit pattern for any unit pattern.
7. moire fringes method for quantitatively evaluating according to claim 1, which is characterized in that obtain at least two figures to be evaluated
Picture, each width at least two images to be evaluated include the unit pattern of periodic arrangement, comprising:
Input the design drawing of at least two periodic structures；
A unit pattern in each design drawing is intercepted respectively；
An image to be evaluated is obtained after carrying out array to the unit pattern for any unit pattern.
8. moire fringes method for quantitatively evaluating according to claim 1, which is characterized in that will at least two figures to be evaluated
As superposition, the second image is obtained, comprising:
Will the corresponding array of image data of at least two images to be evaluated, make convolution or in a frequency domain in the spatial domain
Make product, obtains second image.
9. moire fringes method for quantitatively evaluating according to claim 1, which is characterized in that according to second image and viewing
Distance obtains a mole print image, comprising:
Fourier transform is carried out to second image to be filtered according to viewing distance with contrast sensitivity function；And carry out
Inverse fourier transform obtains mole print image.
10. -9 described in any item moire fringes method for quantitatively evaluating according to claim 1, which is characterized in that image to be evaluated is
One of black matrix pattern, touch pattern, grating pattern.
11. a kind of product design method characterized by comprising the described in any item moire fringes quantizations of claim 1-10 are commented
Valence method；
Wherein, by changing at least two images to be evaluated, the parameter of the unit pattern of at least one image to be evaluated is obtained
Multiple groups the first moire fringes period and the first contrast sensitivity.
12. product design method according to claim 11, which is characterized in that further include:
Optimal one group of first moire fringes period and the corresponding parameter of the first contrast sensitivity are chosen, as applied to the product
In at least two periodic structures parameter.
13. a kind of computer-readable medium, is stored thereon with computer program, which is characterized in that the computer program is held
When row, such as the described in any item moire fringes method for quantitatively evaluating of claim 1-10 are realized.
14. a kind of electronic equipment characterized by comprising processor, memory；The memory is for storing one or more
A program；
When one or more of programs are executed by the processor, such as described in any item moles of claim 1-10 are realized
Line method for quantitatively evaluating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555728.9A CN108986072B (en) | 2018-05-31 | 2018-05-31 | Moire pattern quantitative evaluation method, product design method, computer-readable medium, and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555728.9A CN108986072B (en) | 2018-05-31 | 2018-05-31 | Moire pattern quantitative evaluation method, product design method, computer-readable medium, and electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108986072A true CN108986072A (en) | 2018-12-11 |
| CN108986072B CN108986072B (en) | 2021-01-26 |
Family
ID=64540417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810555728.9A Active CN108986072B (en) | 2018-05-31 | 2018-05-31 | Moire pattern quantitative evaluation method, product design method, computer-readable medium, and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108986072B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040986A (en) * | 2019-05-29 | 2019-07-23 | 北京京东方专用显示科技有限公司 | Optical glass applying method and device |
| CN110059700A (en) * | 2019-03-18 | 2019-07-26 | 深圳神目信息技术有限公司 | The recognition methods of image moire fringes, device, computer equipment and storage medium |
| CN111008963A (en) * | 2019-11-27 | 2020-04-14 | 京东方科技集团股份有限公司 | Moire pattern quantitative evaluation method and device, electronic device, and storage medium |
| CN112562028A (en) * | 2020-12-03 | 2021-03-26 | 科大讯飞股份有限公司 | Method, device and equipment for constructing image with moire fringes and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8340457B2 (en) * | 2004-04-19 | 2012-12-25 | Semiconductor Energy Laboratory Co., Ltd. | Image analysis method, image analysis program and pixel evaluation system having the sames |
| CN103106660A (en) * | 2013-01-31 | 2013-05-15 | 北京航空航天大学 | Synthetic aperture radar (SAR) image quality evaluation method based on contrast sensitivity characteristics |
| CN103366336A (en) * | 2013-07-12 | 2013-10-23 | 陕西理工学院 | Image watermarking method based on human eye contrast ratio sensitivity visual characteristics |
| CN103492929A (en) * | 2011-04-28 | 2014-01-01 | 松下电器产业株式会社 | Video display device |
| CN103645036A (en) * | 2013-12-30 | 2014-03-19 | 京东方科技集团股份有限公司 | Moire pattern evaluation method and device |
| CN105556397A (en) * | 2013-09-20 | 2016-05-04 | 佳能株式会社 | Charging member, method for manufacturing same, process cartridge, and electrophotographic device |
| CN107003777A (en) * | 2014-12-11 | 2017-08-01 | 微软技术许可有限责任公司 | The touch display system of moire fringes pattern with reduction |
| CN107065205A (en) * | 2017-02-28 | 2017-08-18 | 京东方科技集团股份有限公司 | Black matrix and display device |
-
2018
- 2018-05-31 CN CN201810555728.9A patent/CN108986072B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8340457B2 (en) * | 2004-04-19 | 2012-12-25 | Semiconductor Energy Laboratory Co., Ltd. | Image analysis method, image analysis program and pixel evaluation system having the sames |
| CN103492929A (en) * | 2011-04-28 | 2014-01-01 | 松下电器产业株式会社 | Video display device |
| CN103106660A (en) * | 2013-01-31 | 2013-05-15 | 北京航空航天大学 | Synthetic aperture radar (SAR) image quality evaluation method based on contrast sensitivity characteristics |
| CN103366336A (en) * | 2013-07-12 | 2013-10-23 | 陕西理工学院 | Image watermarking method based on human eye contrast ratio sensitivity visual characteristics |
| CN105556397A (en) * | 2013-09-20 | 2016-05-04 | 佳能株式会社 | Charging member, method for manufacturing same, process cartridge, and electrophotographic device |
| CN103645036A (en) * | 2013-12-30 | 2014-03-19 | 京东方科技集团股份有限公司 | Moire pattern evaluation method and device |
| CN107003777A (en) * | 2014-12-11 | 2017-08-01 | 微软技术许可有限责任公司 | The touch display system of moire fringes pattern with reduction |
| CN107065205A (en) * | 2017-02-28 | 2017-08-18 | 京东方科技集团股份有限公司 | Black matrix and display device |
Non-Patent Citations (2)
| Title |
|---|
| DENIS N.SIDOROV AND ANIL C.KOKARAM: "Suppression of moire patterns via spectral analysis", 《VISUAL COMMUNICATIONS AND IMAGE PROCESSING 2002》 * |
| 邱香香: "基于CCD静态图像的摩尔纹去除算法研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110059700A (en) * | 2019-03-18 | 2019-07-26 | 深圳神目信息技术有限公司 | The recognition methods of image moire fringes, device, computer equipment and storage medium |
| CN110040986A (en) * | 2019-05-29 | 2019-07-23 | 北京京东方专用显示科技有限公司 | Optical glass applying method and device |
| CN110040986B (en) * | 2019-05-29 | 2021-10-26 | 北京睿智航显示科技有限公司 | Optical glass bonding method and device |
| CN111008963A (en) * | 2019-11-27 | 2020-04-14 | 京东方科技集团股份有限公司 | Moire pattern quantitative evaluation method and device, electronic device, and storage medium |
| CN111008963B (en) * | 2019-11-27 | 2023-12-22 | 京东方科技集团股份有限公司 | Moire quantization evaluation method and device, electronic equipment and storage medium |
| CN112562028A (en) * | 2020-12-03 | 2021-03-26 | 科大讯飞股份有限公司 | Method, device and equipment for constructing image with moire fringes and storage medium |
| CN112562028B (en) * | 2020-12-03 | 2024-08-23 | 科大讯飞股份有限公司 | Construction method, device, equipment and storage medium for Moire pattern image |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108986072B (en) | 2021-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108986072A (en) | Moire fringes method for quantitatively evaluating and product design method, computer-readable medium and electronic equipment | |
| CN107003777B (en) | touch display system with reduced moire pattern | |
| RU2621173C2 (en) | Distribution, pixel arrangement and image formation relative to microlens matrix with round or square bases to achieve three-dimensionality and multi-directional movement in full | |
| CN104205194B (en) | The determining method of the Wiring pattern of conductive film, display device and conductive film | |
| JP6285888B2 (en) | Conductive film, display device including the same, and method for evaluating conductive film | |
| CN104885139A (en) | Conductive film, display device equipped with same and method for determining pattern of conductive film | |
| CN103605716B (en) | Data processing method and device used for webpage click display | |
| JP5800320B2 (en) | Conductive film, and touch panel and display device including the same | |
| CN208887565U (en) | A kind of three-dimension measuring system of non-contact type high-precision | |
| US10627971B2 (en) | Conductive film, touch panel, and display device | |
| CN105122336A (en) | Conductive film, display device provided with same, and evaluation and determination method for conductive film wiring pattern | |
| Saveljev et al. | About a moiré-less condition for non-square grids | |
| Boev et al. | Visual-quality evaluation methodology for multiview displays | |
| JP7468354B2 (en) | Method for generating moire visualization pattern, device for generating moire visualization pattern, and system for generating moire visualization pattern | |
| JP2014006674A (en) | Image processing device, control method of the same and program | |
| US11631224B2 (en) | 3D immersive visualization of a radial array | |
| CN108536332B (en) | Method and device for determining touch layer graph, touch display device, storage medium and computer equipment | |
| WO2023275960A1 (en) | Optical element and display device | |
| CN106055293B (en) | Methods, devices and systems for displaying images | |
| CN112087613A (en) | Method, device and computer readable medium for generating two-dimensional light field image | |
| CA2972449C (en) | Display of intensity profile discs | |
| Skottun | Amplitude and phase in the Müller-Lyer illusion | |
| WO2016060142A1 (en) | Conductive film, display device provided therewith, and conductive film evaluation method | |
| Eggeling et al. | Optimization of an Autostereoscopic Display for a Driving Simulator. | |
| WO2022050022A1 (en) | Moire display body, device for generating moire formation pattern, system for generating moire formation pattern, and method for generating moire formation pattern |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |