CN103116755A - Automatic painting and calligraphy authenticity degree detecting system and method thereof - Google Patents
Automatic painting and calligraphy authenticity degree detecting system and method thereof Download PDFInfo
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Abstract
The invention provides an automatic painting and calligraphy authenticity degree detecting system comprising an image acquiring unit, a characteristic extracting unit and an automatic comparison unit. The image acquiring unit is used for acquiring perspective drawings of to-be-detected painting and calligraphy works or authentic painting and calligraphy works under different light source intensities; the characteristic extracting unit is used for acquiring image information characteristics of the perspective drawings of the painting and calligraphy works; and the automatic comparison unit is used for judging similarity degree after comparing the image information characteristics of the perspective drawings of the to-be-detected painting and calligraphy works and the image information characteristics of the perspective drawings of the authentic painting and calligraphy works. The detecting system further provides an automatic painting and calligraphy authenticity degree detecting method which includes: firstly, establishing an image information characteristic library for the authentic painting and calligraphy works; secondly, acquiring the perspective drawings of the to-be-detected painting and calligraphy works under different light source intensities; thirdly, extracting the image information characteristics of the perspective drawings of the to-be-detected painting and calligraphy works; and finally, acquiring similarity degree after comparing the image information characteristics of the perspective drawings of the to-be-detected painting and calligraphy works and the image information characteristics of the perspective drawings of the authentic painting and calligraphy works. By the painting and calligraphy authenticity degree detecting system and the method thereof, reliability and accuracy of appraisal of the painting and calligraphy works are improved.
Description
Technical field
The present invention relates to painting and calligraphy authenticate technology field, be specifically related to painting and calligraphy true and false degree automatic checkout system and method thereof.
Background technology
Along with socioeconomic development, people more and more like and the collection calligraphy artwork, painting and calligraphy are marrow places of traditional culture, have merged the understanding of China scholar to every aspects such as natural, social and associated literature and art, philosophy, religion and politics since ancient times.The historical civilization of China's brilliance has strengthened cultural and the artistry of painting and calligraphy pieces, makes painting and calligraphy occupy for a long time the half of the country of artwork collection.No matter at all times, famous expert's painting and calligraphy all are subject to the king and wait the liking and collection of phase, and vast personage among the people also likes collecting painting and calligraphy pieces after the free time.
The evaluation work of painting and calligraphy pieces were all contained larger subjective factor, the development along with society's science and technology has engendered the false proof authentication method of some painting and calligraphy that utilize modem technology to develop in the past.
Nanjing Zhu first is formed in and proposes the invention that a key name is called " calligraphy and painting works authenticity method " year on September 29th, 2003, its application number is CN1529270A, this invention is to enter electronic library by setting up calligraphy and painting genuine piece work, and the method for the information that provides according to this storehouse a kind of evaluation that calligraphy and painting key element and the superimposed consistance of corresponding video image are compared.Its technical scheme comprises the following steps: to set up calligraphy and painting genuine piece work and enters electronic library, and it comprises genuine piece video image storehouse and factor database; Comparing one by one of calligraphy and painting key element has an above key element not identical, identifies that calligraphy and painting is pseudo-, and same key element is all identical, then carries out following comparison; The calligraphy and painting video image relatively, calligraphy and painting genuine piece video image and the product of evaluation video image mutually fully superimposed or in the same way pair-wise offset and tone consistent, be accredited as very, otherwise be puppet.
Print company limited when network company limited of Shanghai China's business net and Shanghai Erie and applied for that on August 5th, 2009 key name is " based on Anti-fake digital printing process and the querying method of digital color identification system " invention, its application number is 200910055928.9A.This invention comprises that system produces Anti-fake digital and key is delivered to printing equipment, set this Anti-fake digital and color corresponding relation, in antifalsification label disposable colored printing Anti-fake digital, graph text information, grating information, bar code information, complete the printing corresponding relation of system storage Anti-fake digital, key and Anti-fake digital and color afterwards.
Beijing UNITECH Technologies Inc. has applied for an invention on September 6th, 2010, its name is called " calligraphy and painting scanner uni authentication method ", and its application number is 201010282493.4.This disclosure of the invention a kind of calligraphy and painting scanning device and calligraphy and painting authentication method, this calligraphy and painting scanning device is converted into digital image information with cardboard calligraphy and painting information, and is stored as specific form by sensor.Scanning process is full-automatic and can monitor, after scanning image the operating speed such as to browse fast, reliability is high.In addition, this invention has also defined a kind of based on the calligraphy and painting control methods by thick maximum correlation to essence, after using small mobile terminals extraction calligraphy and painting local message to be identified, can compare evaluation with the good authentic work image of prior scanning.
The people such as Feng Dechao, Yao Qingfang has proposed the invention of a key name for " detection method in a kind of verification retrieval " on November 16th, 2007, and its application number is 200710158311.This detection method can be applied to the evaluation of the ancient records and relics such as bronze ware, pottery, engraving, calligraphy and painting.Lu Bo science and technology utilizes the false proof DNA of hidden type to increase exclusive DNA certification mark for painting and calligraphy pieces, mainly with artist or relatives' DNA as exclusive DNA certification mark, sneak in ink paste or pigment after the patented technology of employing Lu Bo science and technology is dealt carefully with exclusive DNA, make it become unique DNA ink paste or DNA pigment.By artist or relatives on every width works or the back side cover exclusive DNA seal, or drawing the back signature with exclusive DNA pigment.
In anti-counterfeiting technology abroad, the U.S. new seldom Bush state Dartmouth College goes out a kind of new computer technology by Hani method thunder leader's a group development, and can identify famous person's calligraphy and painting is genuine piece or fakement, and accuracy rate is higher.Mainly utilize numerical analysis, the style of use paintbrush, pen and pencil that computer can be held an artist is recorded.These styles are grouped together the true original handwriting that just can produce certain great master's creation style.Use this technology can know that disputable works are the hands that really come from a great master, or it is exactly the fakement that a width is mixed the spurious with the genuine at all.U.S. safety of image system house and Hungary is excellent draws design corporation to utilize to disturb view literary composition technical patent security pattern is upset, and is superimposed upon after distortion on the printed matters such as banknote, stamp, packages printing pattern.The people can not see these marks, and color copy machine and digital scanner also can't copy this anti-fake mark picture and text, only is placed under specific decoding mirror, and Antiforge is adopted and can be displayed, and produces 3-D effect.Its advantage is need not specialty printing, laser printing can be completed this technology, can use different frequencies to carry out repeatedly encryption anti-counterfeiting and different product false proofs simultaneously.
Although above-mentioned patent or product to a certain degree stopped the false proof of painting and calligraphy markets, but due to the pen and ink thickness information that forms in the own structural information of not utilizing the painting and calligraphy paper and painting and calligraphy creation process, be difficult to the painting and calligraphy pieces of assert definitely that fundamentally a panel height is imitative.
Summary of the invention
The features and advantages of the present invention are partly statement in the following description, perhaps can describe obviously from this, perhaps can learn by putting into practice the present invention.
For overcoming the problem of prior art, the invention provides a kind of painting and calligraphy true and false degree automatic checkout system and painting and calligraphy true and false degree automatic testing method, the means of adoption of innovation optical imagery, the painting and calligraphy pieces skeleton view that gets is extracted the image information feature that comprises paper structure feature and pen and ink thickness information feature, and relatively draw the similarity of this painting and calligraphy pieces by the image information feature of itself and authentic work painting and calligraphy pieces skeleton view.
It is as follows that the present invention solves the problems of the technologies described above the technical scheme that adopts:
According to an aspect of the present invention, provide a kind of painting and calligraphy true and false degree automatic checkout system to comprise: image acquisition unit, obtain painting and calligraphy pieces to be checked under Different Light intensity or the skeleton view of authentic work painting and calligraphy; Feature extraction unit is extracted the image information feature of this painting and calligraphy pieces skeleton view; Compare the image information feature of this painting and calligraphy pieces skeleton view to be checked and the image information feature of this authentic work painting and calligraphy pieces skeleton view, and judge the similarity of whole painting and calligraphy pieces to be checked in the automatic comparison unit.
According to one embodiment of present invention, also comprise authentic work painting and calligraphy image information feature storehouse, be used for the image information feature of the authentic work painting and calligraphy pieces skeleton view that this feature extraction unit of storage extracts, for this automatic comparison cell call.
According to one embodiment of present invention, also comprise output unit as a result, be used for exporting the similarity of whole this painting and calligraphy pieces to be checked of this automatic comparison unit comparing out, when the similarity of whole this painting and calligraphy pieces to be checked reaches the threshold value that sets and is judged as genuine piece when above.
According to another aspect of the present invention, provide a kind of painting and calligraphy true and false degree automatic testing method, comprising: set up authentic work painting and calligraphy image information feature storehouse; Obtain the painting and calligraphy pieces skeleton view to be checked under the transmission of Different Light intensity; Extract the image information feature of this painting and calligraphy pieces skeleton view to be checked; The image information feature of corresponding authentic work painting and calligraphy pieces skeleton view in the image information feature of this painting and calligraphy pieces skeleton view to be checked and authentic work painting and calligraphy image information feature storehouse is compared, and draw similarity.
According to one embodiment of present invention, this step of setting up authentic work painting and calligraphy image information feature storehouse comprises: obtain the authentic work painting and calligraphy pieces skeleton view under Different Light intensity, extract the image information feature of this authentic work painting and calligraphy pieces skeleton view.
According to one embodiment of present invention, this image information feature comprises that optical imagery yardstick invariant features is counted out, the white vector of deceiving proportional numers or carrying out non-down sampling contourlet transform (NSCT) gained of bianry image.
According to one embodiment of present invention, be N if the optical imagery yardstick invariant features of this painting and calligraphy pieces skeleton view to be checked is counted out, the white black proportional numers of bianry image is NW/NB, and the vector that carries out the non-down sampling contourlet transform gained is b; The optical imagery yardstick invariant features of this authentic work painting and calligraphy pieces skeleton view is counted out and is M, and the white black proportional numers of bianry image is MW/MB, and the vector that carries out the non-down sampling contourlet transform gained is a; Similar value corresponding to above-mentioned feature is respectively F
1=| M-|M-N||/M; F
2=| MW/MB-NW/NB/ (MW/MB); F
3=cos θ=＜a, b 〉/(| a| * | b|).
According to one embodiment of present invention, after three Fusion Features to this image information feature, its similarity S=(a
1* F
1+ a
2* F
2+ a
3* F
3)/3, wherein a
1+ a
2+ a
3=1.
According to one embodiment of present invention, this similarity S is only the similar value of this painting and calligraphy pieces to be checked under a kind of intensity of light source, if the n kind intensity of light source is arranged, its corresponding similarity is respectively S
1～S
n, the similarity of this whole painting and calligraphy pieces to be checked is (S
1+ S
2+ ... + S
n)/n.
According to one embodiment of present invention, this similarity is the mean value of the image information feature similarity of this painting and calligraphy pieces skeleton view to be checked under all Different Light intensity.
Painting and calligraphy true and false degree automatic checkout system of the present invention and method have utilized the means such as light source and image information feature fusion to determine the similarity of calligraphy and painting, convenient accurately, the development of China's cultural industry is had impetus.Authenticity, reliability and accuracy that painting and calligraphy are identified have been strengthened.
By reading instructions, those of ordinary skills will understand feature and the content of these technical schemes better.
Description of drawings
Below by the reference accompanying drawing and in conjunction with example, the present invention is described particularly, advantage of the present invention and implementation will be more obvious, wherein content shown in accompanying drawing only is used for explanation of the present invention, and does not consist of the restriction of going up in all senses of the present invention, in the accompanying drawings:
Fig. 1 is the schematic diagram of embodiment of the present invention painting and calligraphy true and false degree automatic checkout system.
Fig. 2 is the quick-reading flow sheets schematic diagram of embodiment of the present invention painting and calligraphy true and false degree automatic testing method.
Fig. 3 is the idiographic flow schematic diagram of embodiment of the present invention painting and calligraphy true and false degree automatic testing method.
Embodiment
The present invention carries out the fidelity of painting and calligraphy pieces and false proof according to the image information feature of painting and calligraphy pieces, and above-mentioned image information feature refers to produce thickness characteristics in the texture and structural characteristic of paper itself and painting and calligraphy creation.These image information features need to extract by this painting and calligraphy pieces skeleton view, wherein this skeleton view refers to below this painting and calligraphy pieces to place the light source of the light that can send varying strength, then utilizes this light source to make progress this painting and calligraphy pieces of transmission and the image that obtains.For this reason, the invention provides a kind of painting and calligraphy identification systems and method thereof, can utilize the image information feature of painting and calligraphy pieces to carry out the fidelity of painting and calligraphy pieces and false proof.
As shown in Figure 1, the invention provides a kind of painting and calligraphy true and false degree automatic checkout system and comprise image acquisition unit 10, obtain painting and calligraphy pieces to be checked under Different Light intensity or the skeleton view of authentic work painting and calligraphy; Feature extraction unit 20 is extracted the image information feature of this painting and calligraphy pieces skeleton view; Compare the image information feature of this painting and calligraphy pieces skeleton view to be checked and the image information feature of this authentic work painting and calligraphy pieces skeleton view, and judge the similarity of whole painting and calligraphy pieces to be checked in automatic comparison unit 30; And output unit 40 as a result, be used for exporting the similarity of whole this painting and calligraphy pieces to be checked of this automatic comparison unit comparing out, when the similarity of whole this painting and calligraphy pieces to be checked reaches the threshold value that sets and is judged as genuine piece when above, this Threshold is 96% in the present embodiment.This system also comprises authentic work painting and calligraphy image information feature storehouse, is used for the image information feature of the extraction authentic work painting and calligraphy pieces skeleton view of this feature extraction unit 20 of storage, calls for this automatic comparison unit 30.
The below introduces painting and calligraphy true and false degree automatic testing method step, please be simultaneously with reference to Fig. 2 and Fig. 3.At first be step S10, set up authentic work painting and calligraphy image information feature storehouse, the establishment step of this database comprises as shown in Figure 3: be at first step S11, place the authentic work painting and calligraphy pieces, and below these authentic work works, light source being set, this light source can send light and this authentic work painting and calligraphy pieces of transmission that makes progress that the intensity of light source is n the varying strength of L1～Ln.Then step S12, obtain the skeleton view of this authentic work painting and calligraphy pieces under this n Different Light intensity transmission, when this painting and calligraphy pieces too large and can not obtain the complete skeleton view of this painting and calligraphy pieces the time, can move this painting and calligraphy pieces, the mode of the transmission plot by splicing this painting and calligraphy pieces various piece obtains the complete skeleton view of this painting and calligraphy pieces.Then be step S13, extract the image information feature of this skeleton view, this image information feature is by one or more the embodying in following three features, that is to say that this image information feature comprises at least one feature in following three features.Wherein first feature is the unique point number of optical imagery yardstick invariant features point SIFT (Scale-invariant feature transform); Second black and white proportional numers that feature is bianry image, the variation that may produce orientation angle due to painting and calligraphy pieces in the process of placing, therefore need at first image to be carried out a standard when extracting this feature, image-region after a standard is carried out the binaryzation operation, and maximum between-cluster variance algorithm (Ostu algorithm) is adopted in the binaryzation operation.Then calculate the monochrome pixels ratio; The 3rd feature is to obtaining optical imagery, asks for its largest square regional, carries out the vector of non-down sampling contourlet transform (NSCT) gained.Be step S14 at last, deposit the image information feature of above-mentioned this authentic work painting and calligraphy pieces skeleton view in authentic work painting and calligraphy image information feature storehouse, call for this automatic comparison unit 30.So far, this authentic work painting and calligraphy image information feature storehouse foundation is completed.
Then enter step S20, obtain the painting and calligraphy pieces skeleton view to be checked under the transmission of Different Light intensity.Concrete operation method in this step please refer to Fig. 3, at first be step S21, place painting and calligraphy pieces to be checked, and below these works to be checked, light source is set, this light source can send light and this painting and calligraphy pieces to be checked of transmission that makes progress that the intensity of light source is n the varying strength of L1～Ln; Then step S22, obtain the skeleton view of this painting and calligraphy pieces to be checked under this n Different Light intensity transmission, when this painting and calligraphy pieces too large and can not obtain the complete skeleton view of this painting and calligraphy pieces the time, can move this painting and calligraphy pieces, the mode of the transmission plot by splicing this painting and calligraphy pieces various piece obtains the complete skeleton view of this painting and calligraphy pieces.
Then as shown in step S30, extract the image information feature of described painting and calligraphy pieces skeleton view to be checked, this image information feature comprises equally that optical imagery yardstick invariant features is counted out, the white black proportional numers of bianry image or carry out at least one feature in these three features of vector of non-down sampling contourlet transform (NSCT) gained.
At last as shown in step S40, the image information feature of corresponding authentic work painting and calligraphy pieces skeleton view in the image information feature of this painting and calligraphy pieces skeleton view to be checked and authentic work painting and calligraphy image information feature storehouse is compared, and draw similarity.Its concrete method please refer to Fig. 3, at first be step S41, the profile of the painting and calligraphy content on painting and calligraphy pieces to be checked according to this or other image retrieval algorithm find corresponding image information feature of wishing the authentic work painting and calligraphy pieces skeleton view of comparison in this authentic work painting and calligraphy image information feature storehouse.Then enter step S42, calculate similarity, the optical imagery yardstick invariant features of supposing the skeleton view of this painting and calligraphy pieces to be checked under a certain intensity of illumination is counted out and is N, and the white black proportional numers of bianry image is NW/NB, and the vector that carries out the non-down sampling contourlet transform gained is b; The optical imagery yardstick invariant features of the skeleton view of authentic work painting and calligraphy pieces under same intensity of illumination that it is corresponding is counted out and is M, and the white black proportional numers of bianry image is MW/MB, and the vector that carries out the non-down sampling contourlet transform gained is a; Similar value corresponding to above-mentioned feature is respectively F
1=| M-|M-N||/M; F
2=| MW/MB-NW/NB|/(MW/MB); F
3=cos θ=＜a, b 〉/(| a * | b|).And the similarity S=(a of this painting and calligraphy pieces to be checked under this intensity of light source
1* F
1+ a
2* F
2+ a
3* F
3)/3, wherein a
1+ a
2+ a
3=1.Then as shown in step S43, calculate the similarity of whole painting and calligraphy pieces to be checked, suppose the total n kind intensity of light source, its corresponding similarity is respectively S
1～S
n, the similarity of this whole painting and calligraphy pieces to be checked is (S
1+ S
2+ ... + S
n)/n.The similarity that is to say this painting and calligraphy pieces to be checked is the mean value of the image information feature similarity of this painting and calligraphy pieces skeleton view to be checked under all Different Light intensity.Similarity (the S of last whole this painting and calligraphy pieces to be checked that this automatic comparison of output unit is compared out as shown in step S44
1+ S
2+ ... + S
n)/n, when the similarity of whole this painting and calligraphy pieces to be checked reaches the threshold value that sets and is judged as genuine piece when above, this Threshold is 96% in the present embodiment.
The present invention carries out the discriminating of the painting and calligraphy true and false according to the different image information feature that painting and calligraphy pieces produces under the transmission of Different Light intensity, strengthened authenticity, reliability and accuracy that painting and calligraphy are identified.Embodiment leads art with science, with the science service culture, promotes market with standard, is conducive to the sound development of painting and calligraphy collection activity, is conducive to the development of cultural industry.
Above with reference to the accompanying drawings of the preferred embodiments of the present invention, those skilled in the art do not depart from the scope and spirit of the present invention, and can have multiple flexible program to realize the present invention.For example, the feature that illustrates or describe as the part of an embodiment can be used for another embodiment to obtain another embodiment.These are only the better feasible embodiment of the present invention, not thereby limit to interest field of the present invention, the equivalence that all utilizations instructions of the present invention and accompanying drawing content are done changes, within all being contained in interest field of the present invention.
Claims (10)
1. a painting and calligraphy true and false degree automatic checkout system, is characterized in that, comprising:
Image acquisition unit obtains painting and calligraphy pieces to be checked under Different Light intensity or the skeleton view of authentic work painting and calligraphy;
Feature extraction unit is extracted the image information feature of described painting and calligraphy pieces skeleton view;
Compare the image information feature of described painting and calligraphy pieces skeleton view to be checked and the image information feature of described authentic work painting and calligraphy pieces skeleton view, and judge the similarity of whole painting and calligraphy pieces to be checked in the automatic comparison unit.
2. painting and calligraphy true and false degree automatic checkout system according to claim 1, it is characterized in that, also comprise authentic work painting and calligraphy image information feature storehouse, be used for storing the image information feature of the authentic work painting and calligraphy pieces skeleton view that described feature extraction unit extracts, for described automatic comparison cell call.
3. painting and calligraphy true and false degree automatic checkout system according to claim 1, it is characterized in that, also comprise output unit as a result, be used for exporting the similarity of the whole described painting and calligraphy pieces to be checked of described automatic comparison unit comparing out, when the similarity of whole described painting and calligraphy pieces to be checked reaches the threshold value that sets and is judged as genuine piece when above.
4. a painting and calligraphy true and false degree automatic testing method, is characterized in that, comprising:
Set up authentic work painting and calligraphy image information feature storehouse;
Obtain the painting and calligraphy pieces skeleton view to be checked under the transmission of Different Light intensity;
Extract the image information feature of described painting and calligraphy pieces skeleton view to be checked;
The image information feature of corresponding authentic work painting and calligraphy pieces skeleton view in the image information feature of described painting and calligraphy pieces skeleton view to be checked and authentic work painting and calligraphy image information feature storehouse is compared, and draw similarity.
5. painting and calligraphy true and false degree automatic testing method according to claim 4, it is characterized in that, the described step of setting up authentic work painting and calligraphy image information feature storehouse comprises: obtain the authentic work painting and calligraphy pieces skeleton view under Different Light intensity, extract the image information feature of described authentic work painting and calligraphy pieces skeleton view.
6. according to claim 4 or 5 described painting and calligraphy true and false degree automatic testing methods, it is characterized in that, described image information feature comprises that optical imagery yardstick invariant features is counted out, the white vector of deceiving proportional numers or carrying out non-down sampling contourlet transform (NSCT) gained of bianry image.
7. painting and calligraphy true and false degree automatic testing method according to claim 6, it is characterized in that, be N if the optical imagery yardstick invariant features of described painting and calligraphy pieces skeleton view to be checked is counted out, the white black proportional numers of bianry image is NW/NB, and the vector that carries out the non-down sampling contourlet transform gained is b; The optical imagery yardstick invariant features of described authentic work painting and calligraphy pieces skeleton view is counted out and is M, and the white black proportional numers of bianry image is MW/MB, and the vector that carries out the non-down sampling contourlet transform gained is a; Similar value corresponding to above-mentioned feature is respectively F
1=| M-|M-N||/M; F
2=| MW/MB-NW/NB|/(MW/MB); F
3=cos θ=＜a, b 〉/(| a| * | b|).
8. painting and calligraphy true and false degree automatic testing method according to claim 7, is characterized in that, after three Fusion Features to described image information feature, and its similarity S=(a
1* F
1+ a
2* F
2+ a
3* F
3)/3, wherein a
1+ a
2+ a
3=1.
9. painting and calligraphy true and false degree automatic testing method according to claim 7, is characterized in that, described similarity S is only the similar value of described painting and calligraphy pieces to be checked under a kind of intensity of light source, if the n kind intensity of light source is arranged, its corresponding similarity is respectively S
1～S
n, the similarity of described whole painting and calligraphy pieces to be checked is (S
1+ S
2+ ... + S
n)/n.
10. painting and calligraphy true and false degree automatic testing method according to claim 4, is characterized in that, described similarity is the mean value of the image information feature similarity of described painting and calligraphy pieces skeleton view to be checked under all Different Light intensity.
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