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 PDF

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Publication number
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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CN
China
Prior art keywords
jewel
feature
image
angle point
characteristic
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Pending
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CN201811351490.4A
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Chinese (zh)
Inventor
雷自力
王杰
刘晓军
杨琇明
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Hubei Emers Intelligent Testing Equipment Co ltd
Wuhan Hengyu Scientific and Educational Instrument and Equipment R&D Co.,Ltd.
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Xiangyang Ams Intelligent Test Equipment Co Ltd
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Priority to CN201811351490.4A priority Critical patent/CN109682414A/en
Publication of CN109682414A publication Critical patent/CN109682414A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adornments (AREA)

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

A kind of characteristic present of jewel identity and recognition methods
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.
CN201811351490.4A 2019-02-28 2019-02-28 A kind of characteristic present of jewel identity and recognition methods Pending CN109682414A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
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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US20160232432A1 (en) * 2015-02-05 2016-08-11 Rgv Group Llc Systems and Methods for Gemstone Identification
CN106056121A (en) * 2016-05-27 2016-10-26 河北工业大学 Satellite assembly workpiece fast-identification method based on SIFT image feature matching
CN106662566A (en) * 2014-12-09 2017-05-10 萨哈加纳德科技私人有限公司 Gemstone verification
CN107238409A (en) * 2017-05-05 2017-10-10 刘厚祥 A kind of method and its identifying system for being used to recognize jewel identity
CN107621465A (en) * 2017-10-20 2018-01-23 中国地质大学(武汉) A kind of diamond identity identifying method
US20180082116A1 (en) * 2015-05-21 2018-03-22 Sarine Color Technologies Ltd. System and method of unique identifying a gemstone
CN107967482A (en) * 2017-10-24 2018-04-27 广东中科南海岸车联网技术有限公司 Icon-based programming method and device
US20180247399A1 (en) * 2017-02-27 2018-08-30 Aniket Bharat Parikh System, Method and Computer Program Product for Security Analysis of Jewellery Items
CN108846403A (en) * 2018-06-04 2018-11-20 襄阳爱默思智能检测装备有限公司 A kind of facet jewel image characteristic extracting method
CN109099867A (en) * 2018-06-26 2018-12-28 无锡新吉凯氏测量技术有限公司 A kind of jewel certification and identifying system and method based on geometric shape information
CN109190637A (en) * 2018-07-31 2019-01-11 北京交通大学 A kind of image characteristic extracting method

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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
US20180082116A1 (en) * 2015-05-21 2018-03-22 Sarine Color Technologies Ltd. System and method of unique identifying a gemstone
CN106056121A (en) * 2016-05-27 2016-10-26 河北工业大学 Satellite assembly workpiece fast-identification method based on SIFT image feature matching
US20180247399A1 (en) * 2017-02-27 2018-08-30 Aniket Bharat Parikh System, Method and Computer Program Product for Security Analysis of Jewellery Items
CN107238409A (en) * 2017-05-05 2017-10-10 刘厚祥 A kind of method and its identifying system for being used to recognize jewel identity
CN107621465A (en) * 2017-10-20 2018-01-23 中国地质大学(武汉) A kind of diamond identity identifying method
CN107967482A (en) * 2017-10-24 2018-04-27 广东中科南海岸车联网技术有限公司 Icon-based programming method and device
CN108846403A (en) * 2018-06-04 2018-11-20 襄阳爱默思智能检测装备有限公司 A kind of facet jewel image characteristic extracting method
CN109099867A (en) * 2018-06-26 2018-12-28 无锡新吉凯氏测量技术有限公司 A kind of jewel certification and identifying system and method based on geometric shape information
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Cited By (2)

* Cited by examiner, † Cited by third party
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
CN110751083B (en) * 2019-10-17 2023-04-18 曹轶 Gem image feature identification method based on homomorphic encryption protection

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Application publication date: 20190426