EP2891008A2 - Gem identification method and apparatus using digital imaging viewer - Google Patents
Gem identification method and apparatus using digital imaging viewerInfo
- Publication number
- EP2891008A2 EP2891008A2 EP13832414.0A EP13832414A EP2891008A2 EP 2891008 A2 EP2891008 A2 EP 2891008A2 EP 13832414 A EP13832414 A EP 13832414A EP 2891008 A2 EP2891008 A2 EP 2891008A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- gemstone
- viewer
- communication device
- electronic communication
- lens
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 13
- 238000003384 imaging method Methods 0.000 title description 12
- 239000010437 gem Substances 0.000 claims abstract description 156
- 229910001751 gemstone Inorganic materials 0.000 claims abstract description 156
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 58
- 239000011521 glass Substances 0.000 claims description 21
- 230000000052 comparative effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 239000010432 diamond Substances 0.000 description 29
- 229910003460 diamond Inorganic materials 0.000 description 23
- 230000008901 benefit Effects 0.000 description 8
- 239000004575 stone Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 241000579895 Chlorostilbon Species 0.000 description 2
- 238000013481 data capture Methods 0.000 description 2
- 229910052876 emerald Inorganic materials 0.000 description 2
- 239000010976 emerald Substances 0.000 description 2
- 230000002996 emotional effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010147 laser engraving Methods 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010979 ruby Substances 0.000 description 2
- 229910001750 ruby Inorganic materials 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 239000011030 tanzanite Substances 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 241000093804 Berzelia galpinii Species 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/389—Precious stones; Pearls
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/87—Investigating jewels
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
Definitions
- This invention relates to the identification of specific gemstones, and in particular to the identification of such gemstones using a digital imaging viewer.
- diamonds are no longer just baubles of the rich.
- the cost of diamonds can be large relative to the household budget of the general population of buyers, but the value, especially the emotional value, can make one particular diamond, to one particular person, virtually priceless beyond monetary value altogether. Any lost or stolen diamond can be replaced quite easily, especially if it was insured by the owner.
- the present invention is a system for positively identifying a light colored polished gemstone, comprising an appliance designed for use with an electronic communication device with a digital imaging camera (for example, a smart phone, tablet computer or any other camera/internet capable device) and software running on the communications device facilitating image data capture and thereafter processing the data into comparative criteria and comparing the data of the subject gemstone against a database of collected data to match the gemstone data to a gemstone data file residing in the database.
- the system may include transmission of the data to operating servers for analysis, or conducting the analysis locally on the communications device.
- the appliance designed to work with the electronic communication device.
- the appliance is a gemstone viewer that is easily attached to and removed from the electronic communication device, thereby allowing the device's camera and its inherent digital imaging functionality to capture a digital image of a gemstone that is magnified by a lens of the gemstone viewer, and oriented such that the gemstone facets reflect the light and dark surfaces of the gemstone viewer body, thereby creating a two dimensional image accentuating the cut facet surfaces and features of the gemstone.
- FIG. 1 is a perspective top-side view of a gemstone viewer for use in the present invention, shown mounted on an electronic communication device having a camera.
- FIG. 2 is a perspective bottom-side view of the gemstone viewer shown in FIG. 1.
- FIG. 3 is an exploded perspective view of the gemstone viewer shown in FIG. 1.
- FIG. 4 is an enlarged top plan view of the gemstone viewer shown in FIG. 1.
- FIG. 5 is a side sectional view of the gemstone viewer shown in FIG. 4, taken along line 5-5 of FIG. 4.
- FIG. 6 is a bottom plan view of the of the gemstone viewer shown in FIG. 1.
- FIG. 7 is a side sectional view of the gemstone viewer of FIG. 6, taken along line 7-7 of FIG. 6.
- FIG. 8 is a perspective top-side view showing another embodiment of a gemstone viewer in accordance with the invention showing a gemstone mounted on a ring and in position for imaging.
- FIG. 8A is a perspective bottom-side view of the apparatus shown in FIG. 8.
- FIG. 9 is a top view of the apparatus shown in FIG. 8.
- FIG. 9A is a bottom view of the apparatus shown in FIG. 8.
- FIG. 10 is a sectional view of the apparatus shown in FIG. 9, taken along line 10- 10 of FIG. 9.
- FIG. 11 is an exploded view of the apparatus shown in FIG. 10.
- FIG. 12 is an image of a diamond created according to one aspect of the invention.
- FIG. 13 is a group of example images of diamonds showing some that match and some that do not match.
- FIG. 14 is a flow chart showing the logical flow of one aspect of the invention.
- the present invention pertains to a system for positively identifying a polished light colored gemstone.
- Such light colored gemstones that may be identified using the present invention include but are not limited to diamond, sapphire, ruby, emerald, and tanzanite.
- the invention includes an appliance designed for use with an existing electronic communication device with a digital imaging camera, for example, a tablet computer, smartphone, or any other camera/internet capable device.
- the invention further includes software running on the communications device that facilitates image data capture of a gemstone. Thereafter, the data captured about the subject gemstone is processed through comparative criteria and compared against previously collected data, to determine whether the newly taken data matches the previously collected data.
- the previously collected data may be residing in a database.
- system may include transmission of the data to remote servers for analysis, or the analysis may be conducted locally on the electronic communication device.
- an integral part of the system is the appliance designed to work with the electronic communication device.
- the appliance is further described as a gemstone viewer that allows the communication device's imaging camera, and its inherent digital imaging functionality, to capture a digital image of a gemstone.
- the appliance includes a lens that may magnify the gemstone.
- the appliance further includes a focusing plane that positions the gemstone such that the gemstone facets reflect the light and dark surfaces of the gemstone viewer body. The reflections are sensed by the imaging camera thereby creating a two dimensional image accentuating the cut facet surfaces and features of the gemstone.
- FIGS. 1-7 One embodiment of a gemstone viewer 10 in accordance with the invention is shown in FIGS. 1-7.
- the gemstone viewer 10 is removably attached to an electronic
- the electronic communication device 1 that includes a camera lens 2.
- the electronic communication device 1 is an Apple ® iPhone®, but any suitable device may be used without departing from the invention including for example, an iPad® or other tablet computer, or a laptop or desktop computer having a camera attached.
- the viewer 10 has a base 12 (shown generally square in shape in the embodiment shown although many other shapes would function equally well) to receive the corner of the electronic communication device 1 where the camera lens 2 and camera 3 is positioned on the back side 5 of the electronic communication device.
- Alternative embodiments of the gemstone viewer may also be attached to the electronic communication device to use a front facing camera, if available.
- the base 12 has a top plane 14 and bottom plane 16 spaced apart by two adjoining side planes 18, 20, which most preferably is formed unitarily but may be formed of parts and assembled as well.
- the base 12 is open on the opposing two adjoining sides so as to accommodate the thickness of the personal
- the base 12 may have a different shape and size so as to correctly orient the viewer to receive a different model of smartphone or personal communications device, with the camera lens in a different position.
- the viewer body 22 encloses a lens 24 at the level of the bottom plane 16 that is coaxially aligned with but not contacting the camera lens 2 of the electronic communication device 1.
- the bottom plane 16 is open to allow an unobstructed path for light to pass through the lens 24 to the camera lens 2.
- the lens 24 visually enlarges objects in the view of the camera beyond that which is otherwise possible by the unaided camera lens 2. Additionally, the lens 24 allows the camera lens 2 to focus on the gemstone, which may be closer to the camera lens 2 than the minimum focusing distance of the camera lens.
- the lens 24 magnifies the gemstone preferably at least lOx, but greater or lesser magnifications may also be used without departing from the invention as long as the software can process unique identifying characteristics of the gemstone. For example, advancements in digital camera sensors may make it possible for the lens 24 to minimally magnify the gemstone, if at all, but still have enough detail in the image to be able to perform the identification analysis. As such, the lens 24 may merely allow the camera lens 2 to focus on the gemstone, but not provide any magnification.
- the viewer body 22 protrudes generally perpendicularly away from the bottom plane 16.
- the opposite end of the viewer body 22 terminates at a plane where a focusing glass 26 is held in place by a retaining ring 28.
- the focusing glass 26 and the lens 24 are held at the correct distance from each other by the viewer body 22 such that the camera lens 2 is properly focused through the lens at the top of the viewer body to the surface of a gemstone 6, placed against the outside surface of the focusing glass.
- the viewer body 22 is made of any suitable translucent material that allows diffuse ambient light to illuminate a gemstone placed on the focusing glass 26.
- FIGS. 8-11 show another embodiment of a gemstone viewer in accordance with the invention.
- the smartphone viewer 110 has a base 112 to receive the corner of the electronic communication device 1 where the camera lens 2 is positioned on the back side 5 of the electronic communication device.
- the base 112 has a top plane 114 and bottom plane 116 spaced apart by two adjoining vertical side planes 118, 120 and is open on the opposing two adjoining sides so as to accommodate the thickness of the electronic communication device 1 that is received through the two open sides.
- the top plane 114, bottom plane 116 and two side planes 118, 120 of the base 112 are precisely spaced to make contact with the electronic communication device 1 so as to secure the base to the electronic
- the base may be a different shape and size so as to correctly orient the device to receive any particular electronic communication device that includes an imaging camera.
- a viewer body 122 is attached to the bottom plane 116.
- the viewer body 122 is a structure sized and positioned to accommodate a lens 124 generally at the level of the bottom plane 116 of the base 112 but offset from the camera lens 2 of the electronic communication device.
- the bottom plane 116 includes an opening 126 to allow an unobstructed path for light to pass through to a channel body 128 of the viewer 110.
- the channel body 128 includes a first 45° mirror 130, and a second 45° mirror 132.
- Mirrors 130, 132 direct light that has passed through a focusing tube 134 and the lens 124.
- the lens 124 is of such a calibration as to visually enlarge objects in the view of the camera lens 2 ten times beyond that which is otherwise possible by the unaided camera lens itself. As discussed above, in this embodiment, the lens 124 also may magnify the object in view of the camera any suitable amount without departing from the invention.
- the viewer body channel 128 extends laterally to the edge of the base bottom plane 116, where the lens 124 is positioned.
- the focusing tube 134 is positioned upon the lens 124 and terminates at the plane of a focusing glass 136, which is held in place by a retaining ring 138.
- the focusing glass 136 is positioned to receive a gemstone 6, table face down on the focusing glass when the electronic communication device 1 is held with its display screen horizontally flat (as if flat on its back on a table).
- the focusing glass 136 and lens 124 are held at the correct distance from each other by the viewer body 122 such that the camera lens 2 is properly focused through the two 45° mirrors 130, 132 and the lens to the surface of a diamond 6 placed against the surface of the focusing glass.
- the portion of viewer body 122 between (in terms of the line of sight) the lens 124 and the camera 3 blocks ambient light from directly striking the gemstone when placed in contact with the focusing glass 136.
- the viewer body 122 is constructed of an opaque material that is either dark in color or coated black.
- the focusing tube 134 is translucent so as to allow transmission of diffuse light into the tube.
- the geometry of the focusing tube 134 is constructed in order that the properties of the light illuminating the diamond are consistent and repeatable.
- the image of the known gemstone as created by the gemstone viewer is captured by the camera 3 of the electronic communication device 1 and stored in memory using software on the device.
- the image of the known gemstone may be generated at any time, and may even be made with other equipment by the manufacturer or jeweler, for example.
- the equipment used to create the image of the known gemstone must have the same geometric and material properties of the gemstone viewer 10, 110. Because trust is such a critical component between a jeweler and the customer, the customer may prefer to create the image of the known gemstone despite the presence of an image created by the manufacturer or jeweler.
- a “server” embodiment of the present invention is shown.
- a user 200 creates a reference image 300 of a gemstone 6 by placing the gemstone on the gemstone viewer 110, which is removably attached to the electronic communication device 1.
- the reference image 300 may then be uploaded and stored, such as via an internet connection native in the electronic communication device or any other suitable means, to software running on a remote server, where the reference image is entered as part of a permanent archival database 302 and registry.
- the reference image 300 is simply stored in a memory on the electronic communication device 1, whether or not in a database, as the reference image of the gemstone 6.
- the reference image 300 may then be processed so as to measure and calibrate the unique identification characteristics of the reference image, and there may be created and assigned a cataloging serial number to be used in rapid retrieval and comparison analysis.
- the user 200 may later compare a gemstone 6 he has, for instance, received back from a jeweler, to determine if it is the same gemstone as was originally turned over to the jeweler.
- the user 300 again uses the gemstone viewer 110 in conjunction with the electronic communication device 1 to make a comparison image 350 of the gemstone he is now holding.
- the comparison image 350 is then analyzed by the software, whether the software on the server in the server embodiment or the app on the electronic communication device 1 in the local embodiment, and compared to the reference image 300 of the original gemstone 6.
- the user 200 may be able to retrieve any gemstone image from the electronic communication device memory for later viewing.
- the user may also request the assigned catalog serial number to be downloaded from a server database.
- the user when the need arises for the user to verify that a particular gemstone (the "comparison gemstone,” which he has in hand) is in fact the same gemstone as he had previously obtained, the user will open the app on the electronic communication device 1 and select "compare gemstones" or a similar option. The app will then instruct the user as to the steps to follow to make a comparison to the existing archived images. The user will proceed to record a comparison image 350 of the comparison gemstone using the same steps as with the original gemstone previously obtained.
- the software present on the electronic communication device instructs the user 200 when the gemstone 6 is in the proper position on the gemstone viewer.
- the software may display a live view of the camera sensor with a target or similar image overlaid on the camera view. Then, when the user places a gemstone on the focusing glass, he or she can use the target to align the gemstone.
- the software may also indicate to the user when the gemstone is in the proper position with an audible or visual clue. Additionally, the software may automatically capture an image upon proper positioning of the gemstone.
- the server software 304 upon uploading the comparison image 350 to the server, the server software 304 will analyze the comparison image, and calibrate the unique identification characteristics for that gemstone, and compare the calibrated data from the comparison image 350 to the reference image 300 to determine if the images were taken of the same gemstone, or from two different gemstones.
- the server software will then send a notification 306 to the electronic communication device 1 advising the user 200 if the images are of the same gemstone, or of different gemstones, and/or advise the user of the likelihood or probability that the gemstones are one and the same.
- the software onboard the electronic communication device 1 upon obtaining the second image, will analyze the comparison image 350, and calibrate the unique identification characteristics for that gemstone, and compare the calibrated data from the comparison images and the reference image 300 to determine if the images were taken of the same gemstone, or from two different gemstones.
- the software on the electronic communication device 1 will then advise the user 200 if the images belong the same gemstone, or from different gemstones, and/or advise the user of the likelihood or probability that the gemstones are one and the same. The user is then able to make an informed decision about the gemstone in hand as being the one anticipated, or a substituted gemstone.
- This system is may also be useful to law enforcement personnel, who could use the gemstone viewer, software, and server on any gemstone that has been recovered from loss or theft, especially in connection with the server embodiment. As long as the gemstone in question has been previously registered with the server, law enforcement personnel can locate a match in the server database, and thereby have identified for them the owner of the gemstone.
- the software for use in connection with the imaging aspect of the invention employs pattern matching.
- pattern matching is well known, but the application of pattern matching here is specific and novel.
- the pattern matching here looks for inclusions or impurities in the gemstone, as well as the particular dimensions of the facets of the gemstone, which are unique for each gemstone because they are hand cut. Additional optical characteristics of the gemstone, such as color and luminance, may also be measured and stored in the database.
- some of the pattern matching functionality is in the software on the electronic communication device, and some of the functionality is in the server software. Of course, some or all of the pattern matching functionality may be performed by software in either the electronic communication device or in a remote device or server.
- the server may merely act as a repository of images, with all of the processing done by the software on the electronic communication device.
- the server may merely act as a repository of images, with all of the processing done by the software on the electronic communication device.
- the store of images is entirely in the storage of the electronic communication device, and accessible by the app, even if no internet connection is available.
- the system begins with taking an image of the known gemstone, to be used for later comparison.
- an image similar to that shown in FIG. 12 is taken, broken down into pixels, and the data of those pixels stored for later comparison.
- an image is taken of the comparison gemstone. That image is broken down into pixels and a data file is created therefrom.
- a preliminary or gross comparison is conducted. Gross items such as the size and shape of the stone, the size and shape of the center of the stone, and the number, size and shape of any inclusions or imperfections, are compared. If any of the gross parameters is different, then it is immediately clear that the comparison gem is not the original gem. If all of the gross parameters are the same, then a pixel by pixel pattern matching is conducted. In the most preferred embodiment, the two images are overlaid with respect to each other, and rotated through a series of angles with respect to each other. The relative angle that produces the greatest number of pixel matches is settled upon. Once the relative angle is settled upon, then the percentage of the pixels that do match is calculated, and the result is produced.
- FIG. 13 is a group of images included for the purpose of showing examples of sets of images that match and sets that do not match.
- the non-matching pairs are 13A/B, 13C/D, 13E/F, and 13G/H.
- the matching sets are 13I/J, 13K/L/M, and 13G/H.
- To the naked eye it is difficult to spot differences between sets 13A/B and 13C/D.
- the software is able to distinguish between very similar gemstones. For example, at first glance, FIGS.
- FIGS. 13I/J show the same stone.
- the stone shown in FIGS. 13I/J include a distinct pattern of inclusions 50.
- the inclusions are visible at the 9 o'clock position.
- the same inclusions 50 are visible at the 11 o'clock position.
- the software is capable of recognizing the identical pattern, even though the gemstones are not in the same orientation. Experience over time will determine what percentage of similarity or probability, and what gray scale level and resolution, and similar parameters, are necessary, to reliably determine whether the original gem and the comparison gem are the same gem.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261695746P | 2012-08-31 | 2012-08-31 | |
US13/901,445 US9213187B2 (en) | 2012-05-25 | 2013-05-23 | Engraved gemstone viewer for personal communications devices |
PCT/US2013/057619 WO2014036460A2 (en) | 2012-08-31 | 2013-08-30 | Gem identification method and apparatus using digital imaging viewer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2891008A2 true EP2891008A2 (en) | 2015-07-08 |
EP2891008A4 EP2891008A4 (en) | 2016-04-20 |
Family
ID=50184669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13832414.0A Withdrawn EP2891008A4 (en) | 2012-08-31 | 2013-08-30 | Gem identification method and apparatus using digital imaging viewer |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2891008A4 (en) |
JP (1) | JP6293757B2 (en) |
CN (2) | CN104718485A (en) |
HK (1) | HK1224382A1 (en) |
IL (1) | IL237450B (en) |
IN (1) | IN2015KN00453A (en) |
WO (1) | WO2014036460A2 (en) |
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GB2483482A (en) * | 2010-09-09 | 2012-03-14 | Univ Dublin City | An optical testing system |
CN103181154A (en) * | 2010-10-29 | 2013-06-26 | 加利福尼亚大学董事会 | Cellscope apparatus and methods for imaging |
US9213187B2 (en) * | 2012-05-25 | 2015-12-15 | Gemex Systems, Inc. | Engraved gemstone viewer for personal communications devices |
-
2013
- 2013-08-30 CN CN201380053570.0A patent/CN104718485A/en active Pending
- 2013-08-30 CN CN201610092253.5A patent/CN105700153B/en active Active
- 2013-08-30 WO PCT/US2013/057619 patent/WO2014036460A2/en active Application Filing
- 2013-08-30 JP JP2015530112A patent/JP6293757B2/en active Active
- 2013-08-30 EP EP13832414.0A patent/EP2891008A4/en not_active Withdrawn
- 2013-08-30 IN IN453KON2015 patent/IN2015KN00453A/en unknown
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2015
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2016
- 2016-11-01 HK HK16112561.6A patent/HK1224382A1/en unknown
Also Published As
Publication number | Publication date |
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CN104718485A (en) | 2015-06-17 |
WO2014036460A2 (en) | 2014-03-06 |
JP6293757B2 (en) | 2018-03-14 |
CN105700153A (en) | 2016-06-22 |
IL237450A0 (en) | 2015-04-30 |
JP2015531475A (en) | 2015-11-02 |
IL237450B (en) | 2021-01-31 |
WO2014036460A3 (en) | 2014-04-17 |
EP2891008A4 (en) | 2016-04-20 |
IN2015KN00453A (en) | 2015-07-17 |
CN105700153B (en) | 2018-11-30 |
HK1224382A1 (en) | 2017-08-18 |
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