CN109682414A - A kind of characteristic present of jewel identity and recognition methods - Google Patents
A kind of characteristic present of jewel identity and recognition methods Download PDFInfo
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- CN109682414A CN109682414A CN201811351490.4A CN201811351490A CN109682414A CN 109682414 A CN109682414 A CN 109682414A CN 201811351490 A CN201811351490 A CN 201811351490A CN 109682414 A CN109682414 A CN 109682414A
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- jewel
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- angle point
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
A kind of facet jewel image characteristic extracting method, after carrying out non-local mean denoising, Da-Jin algorithm binary conversion treatment to facet jewel image, edge point set, which is extracted, using canny algorithm and does least square method circumference is fitted, contour feature as facet jewel, and mark off 4 metric spaces, the feature angle point of image is calculated using harris angle point algorithm simultaneously, the distance that feature angle point reaches fitting heart dot is calculated again, strong corner feature finally by the feature angle point in section of delimitation aforementioned at distance, as facet jewel.This method has fully considered facet jewel geometry character and the angle point regularity of distribution, using the strong angle point that can most represent facet jewel feature has been screened apart from section, eliminates the interference of redundancy angle point.
Description
Technical field
The invention belongs to the methods of Gemstone Identification, more particularly, to a kind of characteristic present for jewel and identification side
Method.
Background technique
Jewel or diamond in the circulation process, mainly uses the papery assay certificate provided as foundation at present.But paper
Matter assay certificate is easy to be lost, is even counterfeit, so confidence level is not high in the circulation process.
Chinese patent CN 107238409A " a kind of method and its identifying system of the identity of jewel for identification " discloses one
The method of kind identification jewel identity, this method mainly pass through a variety of set feature parameters of identification jewel, realize jewel identity
Uniqueness.But the set feature parameter of the jewel of this method acquisition is more, the set feature parameter of jewel includes the several of jewel
The structural characteristic parameter two major classes type of what structural characteristic parameter and vegetarian noodles jewel, the geometry characteristic parameter of jewel includes jewel
The angle of each perimeter, area and central plane, chisels shape, length, width and height and 3D model at waist waveform；The structure feature of vegetarian noodles jewel is joined
Number includes gemstone surface radian, surface area, cut, length, width and height and 3D model, altogether 13 parameters, and the measurement process of parameter is more
Complexity, limit parameter acquisition, characteristic present and jewel identification speed, be not suitable for high-volume jewel identity it is quick foundation with
Identification, limits its use in the circulation process.
Therefore, the present invention with the characteristic present of jewel and is identified as research object, proposes a kind of use gem characteristics figure
Picture, and acquire gem characteristics data by a variety of image processing methods and achieve, identity with uniqueness is established, is reflected in jewel
During fixed, matching characteristic data are identified, are of great significance for the circulation and retrospect of high-volume jewel.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of mark sheets of novel jewel identity
It seeks peace recognition methods, it is intended that obtaining the main characteristic parameters of jewel simultaneously using image procossing by acquisition jewel image
It achieves, establishes identity, and identification is completed by acquisition jewel image and matching characteristic parameter in the circulation process, reduce the behaviour of people
It measures, it is easy to accomplish the requirement of automation.
To achieve the above object, the present invention provides a kind of novel gem characteristics characterization and recognition methods, including jewel, day
Flat, Image Acquisition terminal and database composition.Wherein jewel measures weight by balance, acquires weight characteristics；The jewel is logical
Image Acquisition terminal acquisition jewel image is crossed, and by image procossing, it is special successively to obtain color distribution feature, hash tables of data
Sign, geometrical characteristic, corner distribution feature and size constancy feature；According to the jewel ID number by the weight, COLOR COMPOSITION THROUGH DISTRIBUTION,
Hash tables of data, geometrical characteristic, angle point distribution and size constancy feature are stored in database, complete the foundation to jewel identity；?
In the jewel process of circulation, the gem characteristics are acquired by the gentle Image Acquisition terminal in the day, and recall with by ID number
Characteristic successively carries out weight, COLOR COMPOSITION THROUGH DISTRIBUTION, hash tables of data, geometrical characteristic, angle point distribution and size constancy in database
Characteristic matching illustrates that material evidence is not inconsistent if one of them are not inconsistent, and as all met, illustrates that material evidence is consistent, completes the knowledge of the jewel
Not, the retrospect in the process of circulation is realized.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
(1) it is foundation that the present invention, which mainly passes sequentially through weight and the characteristic parameter of image, and the characteristic present and identification to jewel are joined
Number is classified according to size is influenced, and generates jewel from macroscopic view to microcosmic parameter, and successively carries out the identification of parameter, is mentioned
A kind of new approaches that solution gem characteristics are characterized and identified have been supplied, have been a kind of completely new approaches in Gemstone Identification technology, this method is former
Reason is simple, it is easy to accomplish, versatile and easy to automate requirement；
(2) jewel image, jewel feature invariant in rotary course, tool are acquired by dedicated Image Acquisition terminal in the present invention
There is reproducible feature, ensure that same jewel repeats the accuracy of imaging；
(3) type that can identify jewel in the present invention according to the color distribution feature of jewel, simplifies identification process；
(4) Hash perception algorithm abstract image fundamental strength and spectrum information, and boil down to hash table structure are used in the present invention,
It is the effective ways of a kind of image humongous search and the positioning of initial identity, improves arithmetic speed；
(5) geometrical characteristic parameter used in the present invention is the peculiar geometrical characteristic that gem processing is completed and formed after illuminating, and is
The important identity information of jewel, ensure that the accuracy of identification；
(6) include the geometry angle point of processing using angle point distribution and size constancy feature in the present invention and generated by illumination optical
Optics angle point, can avoid jewel illumination, noise, rotation, the influence of scaling and viewpoint change in fixed clamping, ensure that knowledge
Other robustness.
Detailed description of the invention
Fig. 1 is the characteristic present flow chart of jewel identity provided in an embodiment of the present invention；
Fig. 2 is the recognition methods flow chart of jewel identity provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
Fig. 1 is gem characteristics characterizing method flow chart provided in an embodiment of the present invention.
Gem characteristics characterizing method implementation steps provided by the invention are as follows:
(1) ID of jewel is generated according to rule；
(2) jewel is placed in high accuracy balance, measures weight, acquire weight characteristics；
(3) by jewel clamping in Image Acquisition terminal, jewel image is acquired, and generates gem characteristics data as follows:
(1) jewel image is decomposed, obtains the intensity value of R, G, B triple channel, acquire color distribution feature；
(2) jewel image is obtained into 64 features by Hash, pHash perception algorithm, acquires hash tables of data feature；
(3) jewel image is extracted into more connected regions by more Connected Regions Extractions and contour edge extraction algorithm and is distributed spy
Profile length of seeking peace feature obtains maximum length of light area and size distribution, the distribution of center dark space area, length and size and the side and
Face processes crest line length and distributed data, acquires jewel geometrical characteristic；
(4) by jewel image by a variety of angle point grids, identification, Algorithms of Selecting obtains the corner feature data of jewel, including adds
The geometry angle point of work and the optics angle point generated by illumination optical, acquire the corner distribution feature of jewel；
(5) jewel image is obtained into the distributing position of sizes invariant features by the extraction algorithm of sizes invariant features
And level, acquire the size constancy feature of jewel；
(4) characteristic is stored in by database according to the ID of generation, completes the foundation of jewel identity.
Fig. 2 is jewel personal identification method flow chart provided in an embodiment of the present invention.
Jewel jewel personal identification method implementation steps provided by the invention are as follows:
(1) characteristic of jewel is acquired by the method that the gem characteristics characterize by high accuracy balance and Image Acquisition terminal
According to, while the corresponding characteristic of jewel ID is transferred from database, and every kind of characteristic parameter matching is arranged according to jewel type
Control threshold；
(2) jewel weight characteristics are matched, if weight is overproof, material evidence is not inconsistent, such as success, into next step；
(3) jewel color distribution feature is matched, such as matches unsuccessful, illustrates that the type of jewel is different, material evidence is not inconsistent, such as success,
Into in next step；
(4) jewel hash tables of data feature is matched, such as matches unsuccessful, illustrates that material evidence is not inconsistent, such as success, realizes the initial of image
Positioning, into next step；
(5) jewel geometrical characteristic is matched, such as matches unsuccessful, illustrates that material evidence is not inconsistent, such as success, illustrates that profile meets, under
One step；
(6) jewel angle point number and distribution are matched, such as matches unsuccessful, illustrates that material evidence is not inconsistent, such as success, illustrates that feature meets, into
Enter in next step；
(7) stone dimension invariant features are matched, such as match unsuccessful, illustrate that material evidence is not inconsistent, such as success, eliminate other factors shadow
It rings, illustrates that material evidence is consistent, complete identification.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (6)
1. characteristic present and the recognition methods of a kind of jewel identity, which is characterized in that including jewel, balance, Image Acquisition terminal
It is formed with database, gem characteristics characterizing method implementation steps provided by the invention are as follows:
(1) ID of jewel is generated according to rule；
(2) jewel is placed in high accuracy balance, measures weight, acquire weight characteristics；
(3) by jewel clamping in Image Acquisition terminal, jewel crown and side image are acquired；
(4) jewel image is decomposed, obtains the intensity value of R, G, B triple channel, acquire color distribution feature；
(5) jewel image is obtained into 64 features by Hash, pHash perception algorithm, acquires hash tables of data feature；
(6) jewel image is obtained into more connected regions by more Connected Regions Extractions and contour edge extraction algorithm and is distributed spy
Profile length of seeking peace feature obtains maximum length of light area and size distribution, the distribution of center dark space area, length and size and the side and
Face processes crest line length and distributed data, acquires jewel geometrical characteristic；
(7) by jewel image by a variety of angle point grids, identification, Algorithms of Selecting obtains the corner feature data of jewel, including adds
The geometry angle point of work and the optics angle point generated by illumination optical, acquire the corner distribution feature of jewel；
(8) jewel image is obtained into the distributing position of sizes invariant features by the extraction algorithm of sizes invariant features
And level, acquire the size constancy feature of jewel；
Characteristic is stored in database according to the ID of generation, completes the foundation of jewel identity；
Jewel personal identification method implementation steps provided by the invention are as follows:
(1) characteristic of jewel is acquired by the method that the gem characteristics characterize by high accuracy balance and Image Acquisition terminal
According to, while the corresponding characteristic of jewel ID is transferred from database, and every kind of characteristic parameter matching is arranged according to jewel type
Control threshold；
(2) jewel weight characteristics are matched, if weight is overproof, material evidence is not inconsistent, such as success, into next step；
Jewel color distribution feature is matched, such as matches unsuccessful, illustrates that the type of jewel is different, material evidence is not inconsistent, such as success, enters
In next step；
(3) jewel hash tables of data feature is matched, such as matches unsuccessful, illustrates that material evidence is not inconsistent, such as success, realizes the initial of image
Positioning, into next step；
(4) jewel geometrical characteristic is matched, such as matches unsuccessful, illustrates that material evidence is not inconsistent, such as success, illustrates that profile meets, under
One step；
(5) jewel angle point number and distribution are matched, such as matches unsuccessful, illustrates that material evidence is not inconsistent, such as success, illustrates that feature meets, into
Enter in next step；
(6) stone dimension invariant features are matched, such as match unsuccessful, illustrate that material evidence is not inconsistent, such as success, eliminate other factors shadow
It rings, illustrates that material evidence is consistent, complete identification.
2. characteristic present and the recognition methods of a kind of jewel identity according to claim 1, which is characterized in that by dedicated
The acquisition of Image Acquisition terminal is reproducible and jewel figure with uniqueness, and image procossing is carried out to jewel figure and automatically derives color
Color distribution characteristics, hash tables of data feature, geometrical characteristic, corner distribution feature and size constancy feature.
3. characteristic present and the recognition methods of a kind of jewel identity according to claim 1, which is characterized in that can be according to treasured
The type of the color distribution feature identification jewel of stone.
4. characteristic present and the recognition methods of a kind of jewel identity according to claim 1, which is characterized in that use Hash
Perception algorithm abstract image fundamental strength and spectrum information, and boil down to hash table structure, realize the first positioning of image.
5. characteristic present and the recognition methods of a kind of jewel identity according to claim 1, which is characterized in that is used is several
What characteristic parameter is the peculiar geometrical characteristic that gem processing is completed and formed after illuminating, and is the important identity information of jewel, is guaranteed
The accuracy of identification.
6. characteristic present and the recognition methods of a kind of jewel identity according to claim 1, which is characterized in that use angle point
Distribution and size constancy feature include the geometry angle point of processing and the optics angle point by illumination optical generation, can avoid jewel and exist
Illumination, noise, rotation, the influence of scaling and viewpoint change when fixed clamping.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811351490.4A CN109682414A (en) | 2019-02-28 | 2019-02-28 | A kind of characteristic present of jewel identity and recognition methods |
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| CN201811351490.4A CN109682414A (en) | 2019-02-28 | 2019-02-28 | A kind of characteristic present of jewel identity and recognition methods |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110751083A (en) * | 2019-10-17 | 2020-02-04 | 曹轶 | Gem image feature identification method based on homomorphic encryption protection |
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| EP0042361A1 (en) * | 1980-06-17 | 1981-12-23 | GRETAG Aktiengesellschaft | Method and device for machine identification of gem stones |
| CN106662566A (en) * | 2014-12-09 | 2017-05-10 | 萨哈加纳德科技私人有限公司 | Gemstone verification |
| US20160232432A1 (en) * | 2015-02-05 | 2016-08-11 | Rgv Group Llc | Systems and Methods for Gemstone Identification |
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| US20180247399A1 (en) * | 2017-02-27 | 2018-08-30 | Aniket Bharat Parikh | System, Method and Computer Program Product for Security Analysis of Jewellery Items |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110751083B (en) * | 2019-10-17 | 2023-04-18 | 曹轶 | Gem image feature identification method based on homomorphic encryption protection |
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Address after: 441000 C603, high tech entrepreneurship service center, No.2, zhuiri Road, high tech Zone, Xiangyang City, Hubei Province Applicant after: Hubei emers intelligent testing equipment Co.,Ltd. Address before: C603, High-tech Entrepreneurship Service Center, No. 2, Zuri Road, High-tech Zone, Xiangyang City, Hubei Province, 441100 Applicant before: XIANGYANG AIMOSI INTELLIGENT DETECTION EQUIPMENT CO.,LTD. |
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Inventor after: Yang Xiuming Inventor after: Lei Zili Inventor after: Wang Jie Inventor after: Liu Xiaojun Inventor before: Lei Zili Inventor before: Wang Jie Inventor before: Liu Xiaojun Inventor before: Yang Xiuming |
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Effective date of registration: 20220829 Address after: Room 601, Unit 4, Building 5, East District, Qijin Garden, Wenzheng Street, Caidian Street, Caidian District, Wuhan City, Hubei Province 430000 Applicant after: Wuhan Hengyu Scientific and Educational Instrument and Equipment R&D Co.,Ltd. Applicant after: Hubei emers intelligent testing equipment Co.,Ltd. Address before: 441000 C603, high tech entrepreneurship service center, No.2, zhuiri Road, high tech Zone, Xiangyang City, Hubei Province Applicant before: Hubei emers intelligent testing equipment Co.,Ltd. |
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Application publication date: 20190426 |