WO2009143732A1 - 防伪证书、防伪***及鉴别物品真伪的方法 - Google Patents
防伪证书、防伪***及鉴别物品真伪的方法 Download PDFInfo
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- WO2009143732A1 WO2009143732A1 PCT/CN2009/071354 CN2009071354W WO2009143732A1 WO 2009143732 A1 WO2009143732 A1 WO 2009143732A1 CN 2009071354 W CN2009071354 W CN 2009071354W WO 2009143732 A1 WO2009143732 A1 WO 2009143732A1
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- image
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- image encoding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/80—Recognising image objects characterised by unique random patterns
Definitions
- the present invention relates to a method for recognizing the authenticity of a miniature image encoding, and more particularly to a method for identifying authenticity by encoding a miniature image.
- the anti-counterfeiting measures such as ID cards and passports are mainly as follows: 1) The more common way is to set a laser hologram on the documents, which is an anti-counterfeit mark that is recognized by the human eye.
- the disadvantage is that as long as the similar equipment is used for imitation and forgery, it is impossible to distinguish between true and false, not only the anti-counterfeiting function is not strong, but also the cost is extremely high; 2) the visual reading information of the surface anti-counterfeiting identification of the document adopts an intuitive physical anti-counterfeiting method, and the anti-counterfeiting Point level management according to level, the disadvantage is that easy to leak, anti-counterfeiting mode is commonality anti-counterfeiting, a point is broken, the whole line falls; 3) the visual reading information of the document and the encryption point are stored in the IC chip integrated with the certificate, The shortcoming of this method is that once the chip is damaged, the machine-readable anti-counterfeiting identification function of the certificate is invalid, and it needs to be queried through the network to the original database, which is inconvenient to query, especially when it is unable to connect with the network. Inspection, in addition, the cost of the IC card chip is extremely high.
- the existing anti-counterfeiting technology also includes a method for encoding micro-hole anti-counterfeiting, please refer to Chinese Patent Application No.: 99100515. 5 , the method uses a coded version (microporous master) as a viewing particle barrier layer for heavy charging Particle irradiation, through the micropore distribution when examining each mark It is compared with the micropore distribution of the coded version to identify authenticity, but this anti-counterfeiting technique has the disadvantage that the micropores are also easy to imitate and the anti-counterfeiting function is not strong.
- the micro image coding technology for reading the surface of an object by using an optical reading device has become increasingly mature.
- the invention name is: Method and application for producing image index A processing system for image indicators, the patent discloses in detail a device for recognizing miniature image coding, which can set a dot matrix with a maximum of 13950 black dots per square centimeter, so that the image cannot be recognized without special equipment.
- the composition of the code has characteristics that are not easily recognized by ordinary people.
- the object of the present invention is to provide a new method for recognizing the authenticity of miniature image encoding, and the technical problem to be solved is to enable the micro image encoding and recognizing device to identify and verify according to the micro image encoding which is not recognized by the human eye. The authenticity of the item.
- the present invention provides an anti-counterfeiting certificate printed with a miniature image code, and the anti-counterfeiting certificate is printed with a micro image encoding corresponding to the attribute of the item to be inspected.
- the micro image coding is composed of a plurality of micro image units, and different micro image coding is distinguished by a combination of a plurality of micro image units in each micro image coding, and the combination of the plurality of micro image units forms a human eye. A small image that cannot be recognized; the verification code obtained by the unique decoding of the miniature image code corresponds to the attribute of the item to be inspected.
- the present invention further provides a miniature image encoding anti-counterfeiting system, comprising: an anti-counterfeiting certificate, the surface printing is useful to represent a miniature image encoding of the item to be inspected;
- the optical module is configured to obtain an optical image of the microscopic magnification of the surface of the object to be inspected;
- the image sensor generates the optical image acquired by the optical module as a digital image;
- the image recognition processing unit identifies and picks up the miniature image from the digital image generated by the image sensor.
- Image coding the micro image is encoded and decoded into a verification code corresponding to the unique one;
- the storage unit stores a correspondence table corresponding to the verification code obtained by encoding and decoding the attribute of each item to be inspected;
- the control module searches for a corresponding item to be inspected in the correspondence table according to the verification code decoded by the image recognition processing unit, and outputs the attribute of the item to be inspected.
- a method for identifying authenticity of a miniature image encoding comprising the steps of: setting an anti-counterfeiting certificate paired with an item to be inspected, and printing a miniature image encoding representing the item to be inspected on the surface of the anti-counterfeiting certificate, a verification code obtained by encoding and decoding the micro image corresponds to an attribute of the item to be inspected; generating a correspondence table corresponding to each verification item attribute and a different verification code, and storing the correspondence table in the storage unit; An optical image obtained by microscopically magnifying the surface of the object, and the optical image is generated by the image sensor as a digital image; the image recognition processing unit checks whether there is a miniature image encoding from the digital image generated by the image sensor, and if not, waits for the image sensor Sending a digital image with a miniature image encoding; if there is a miniature image encoding in the digital image, picking up the micro image encoding and decoding it into a uniquely corresponding verification
- the method for recognizing the authenticity of the miniature image encoding of the present invention has the following advantages:
- the present invention is to obtain a miniature image code printed on the surface of an anti-counterfeit certificate, and decode and decode the micro image.
- the anti-counterfeiting certificate is made of any object that can be printed with a miniature image, or the object to be inspected directly printed on the surface with a miniature image, and the printed micro-image encoding only needs to be printed. Therefore, the cost is low.
- the anti-counterfeiting function can be quickly realized by printing the micro image coding on the surface of the object to be inspected without the anti-counterfeiting.
- the above-mentioned miniature image coding is composed of extremely small micro image units, so that it does not affect the visual effect of other graphic characters printed on the surface of the security certificate, and can ensure that the ordinary person cannot distinguish the micro without using special instruments.
- the graphic composition of the image coding is to ensure the security of the micro image coding, and at the same time, in the case of large-area damage of the surface of the anti-counterfeit certificate, the micro image coding recognition device can still obtain the micro image coding on the extremely small undamaged portion. To check the authenticity.
- each micro image coding is composed of a plurality of micro image units, and each micro image coding is distinguished by a combination of micro image units, and each micro image unit can be at least as small as 40 ⁇ in diameter.
- the medium state combination corresponds to 65536 code positions belonging to a literal face in the Unicode code structure, and the remaining state combinations can be reserved for other purposes, thereby knowing that the miniature image coding is invisible to the naked eye, and the micro image unit array combination
- the method is very suitable, so it is very suitable for use as anti-counterfeiting certification.
- the micro image coding can also be distinguished from the ink of other parts by printing the ink used for printing, and then the micro image coding is performed by filtering the filter of the micro image coding recognition device. Therefore, the micro image coding printed on the anti-counterfeiting certificate of the present invention must be obtained under the conditions of having special light source illumination, high magnification microscopic amplification, specific filter filtering, etc., and further realizing the use as an anti-counterfeiting mark. The protection of the miniature image encoding.
- the invention adopts the method of directly reading the micro image coding printed on the surface of the anti-counterfeit certificate, so that the identification speed is fast, and the inspection work of a large number of items to be inspected is completed in a short time.
- FIG. 1 is a block diagram showing the structure of a miniature image encoding anti-counterfeiting system of the present invention.
- FIG. 2 is a schematic view of the anti-counterfeiting certificate of the present invention applied to a wine bottle.
- FIG. 3 is a schematic diagram of printing multiple sets of miniature image codes on the anti-counterfeiting certificate of the present invention.
- FIG. 4 is a schematic diagram of a micro image unit array combining structure in micro image encoding.
- Fig. 5 is a schematic diagram showing a state area setting mode of micro image coding.
- FIG. 6 is a flow chart of a method for recognizing the authenticity of a miniature image encoding in accordance with the present invention.
- FIG. 1 is a structural block diagram of a miniature image encoding anti-counterfeiting system of the present invention
- the micro image encoding anti-counterfeiting system includes a micro image encoding and recognizing device and an anti-counterfeiting certificate, and the anti-counterfeiting certificate surface is printed to represent a miniature image encoding of the item to be inspected.
- the micro image code printed on each security certificate is in one-to-one correspondence with the attributes of different items to be inspected.
- the micro image encoding and recognizing device includes: an optical module for acquiring an optical image on the surface of the anti-counterfeit certificate; an image sensor for generating an optical image obtained by the optical module as a digital image; an image recognition processing unit, the number generated from the image sensor Picking up a miniature image code in the image, and encoding the micro image into a verification code corresponding to the unique one; the storage unit storing the verification code corresponding to the attribute of the object to be inspected and encoded by the micro image representing the object to be inspected Corresponding table; the control module searches for the corresponding item to be inspected in the correspondence table according to the verification code decoded by the image recognition processing unit, and outputs the attribute of the item to be inspected.
- the attribute of the item to be inspected includes the item name to be inspected, the product equipment number, the manufacturer name, the vendor name, or the product model number, and the inspection personnel inspect the item to be inspected according to the micro image coding recognition device after reading the micro image code. True or false.
- the property of the item to be inspected may be printed on the surface of the anti-counterfeiting certificate, so that when the micro image encoding and recognizing device outputs the attribute of the item to be inspected, the inspecting person may directly print the object to be printed on the surface of the anti-counterfeiting certificate. Check the item properties to determine the authenticity of the items being inspected. Referring to FIG.
- FIG. 2 it is a schematic diagram of the anti-counterfeiting certificate of the present invention applied to a wine bottle.
- the above-mentioned miniature image encoding 10 is printed on the surface of the anti-counterfeiting certificate 1, and is composed of a plurality of micro-image units 16 and each micro
- the combination of the plurality of micro image units 16 in the image code 10 distinguishes between different miniature image codes 10, and the combination of the plurality of micro image units 16 forms minute patterns that are not recognized by the human eye.
- the anti-counterfeiting certificate is set on the top of the bottle, and can also be set at various positions of other items to be inspected, or can be independently placed in the box with the anti-counterfeit certificate.
- FIG. 3 is a schematic diagram of printing a plurality of sets of micro image coding on the anti-counterfeiting certificate of the present invention
- FIG. 4 is a schematic diagram of a micro image unit array combining structure in the micro image coding
- the micro image code 10 includes a content data portion 12 and a header portion 14.
- the content data portion 12 includes nine micro image units composed of nine dots 16, and the area occupied by the content data portion 12 is divided into nine state regions 18, thereby constituting a 3 ⁇ 3 plane.
- the two-dimensional state area array is such that each state area 18 includes a dot 16.
- a different position of a dot 16 in a state area 18 can be utilized to represent a value in the corresponding index data.
- a state area 18 can be equally divided into four virtual areas, and the dots 16 are selectively placed in one of the four virtual areas of the lower right, the lower left, the upper left, and the upper right.
- the bit values shown in the content data portion 12 of Fig. 4 are combined by the state of the micro image units of the corresponding arrangement relationship in Fig. 6.
- the placement of the micro image unit (ie, the dot 16) in different virtual regions is utilized. Position to decode the micro image encoding, and the setting of the virtual area and the placement position of the micro image unit are uncontrollable by the copyer. Therefore, the micro image encoding composed of a plurality of micro image units is extremely high in non-reproducible. Sexual.
- the micro image encoding anti-counterfeiting system of the present invention further includes an output unit connected to the control module, and the control module can output the attribute of the item to be inspected according to the verification code correspondingly to the user through the output unit.
- the output unit may be a display module including a display screen, or may be an audio output module including a speaker.
- the above-described miniature image encoding is printed with ink different from the color of the surface of the security certificate, that is, the ink color used for printing the micro image encoding on the surface of the security certificate to be ink other than the printing micro image encoding.
- the color is different;
- the optical module is provided with a lens and a filter, and the lens amplifies the optical image on the surface of the security certificate, and the filter filters the light in the optical image that is different in color from the micro image.
- the micro image encoding described above is printed on the surface of the anti-counterfeiting certificate by a special ink, and the light wave reflected by the special ink under the illumination of the specific wavelength is different from the ordinary ink; the surface of the anti-counterfeiting certificate
- the information other than the printed miniature image code is printed with ordinary ink;
- the optical module is provided with a special light source, a filter and a lens, and the special light source illuminates a specific wavelength of light on the surface of the security certificate, and the lens will optically image the surface of the security certificate.
- the filter filters the light outside the band of light reflected by the special ink under the illumination of a special light source.
- the above-mentioned anti-counterfeit certificate may be provided with a concealed area printed by ordinary ink on the surface, and the micro image code representing the item to be inspected is printed in a concealed area with a special ink; the color of the ordinary ink is the same as the color of the special ink, thereby encoding the micro image with Partial utilization of common ink printing The same color is mixed, so that the ordinary user can not obtain the micro image unit array structure of the micro image encoding when using the microscopic magnification device.
- the above-mentioned miniature image encoding is printed on the surface of the anti-counterfeit certificate by a large amount of absorption ink that absorbs infrared light; the non-absorbent ink printing micro-film that does not absorb infrared light is printed on the surface of the anti-counterfeit certificate printed with the micro image encoding Information other than image encoding; the optical module is provided with an infrared light source, a filter and a lens, the infrared light source illuminates the surface of the anti-counterfeit certificate, the lens amplifies the optical image on the surface of the anti-counterfeit certificate, and the filter transmits the frequency outside the infrared band Light wave filtering.
- the above-mentioned absorbing ink is preferably a carbon-containing ink.
- the above-mentioned anti-counterfeit certificate is printed with a non-absorbent ink on the surface with a concealed area, and the micro-image code representing the object to be inspected is printed in the concealed area by the absorption ink, and the color of the non-absorbent ink is the same as the color of the absorbed ink, thereby encoding the micro image.
- the portions of the non-absorbent ink printing are mixed together in the same color, so that the ordinary user cannot obtain the micro image unit array structure of the micro image encoding when observed using the microscopic magnification device. Referring to FIG.
- the micro-image encoding anti-counterfeiting system according to the present invention has the following methods for authenticating the authenticity:
- the optical module acquires an optical image that is microscopically enlarged on the surface of the object, and the optical image is generated by the image sensor as a digital image;
- the image recognition processing unit checks whether there is a miniature image encoding from the digital image generated by the image sensor, and if not, waits for the image sensor to transmit the digital image with the miniature image encoding;
- the micro image is picked up and decoded into a verification code corresponding to the unique one, and the control module retrieves the correspondence table in the storage unit, and searches for the verification code corresponding to the decoding in the correspondence table.
- the property of the item to be inspected if the attribute of the item to be inspected corresponding to the verification code is not found in the corresponding table, waiting for the image sensor to transmit the digital image with the miniature image encoding;
- control module finds the attribute of the item to be inspected corresponding to the verification code in the correspondence table, the attribute of the item to be inspected is output, and the attribute of the item to be inspected is used to check the authenticity of the item to be inspected.
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Description
防伪证书、 防伪***及鉴别物品真伪的方法
【所属技术领域】
本发明涉及一种可识别微型图像编码鉴别真伪的方法, 尤其涉及一 种通过对微型图像编码识别以鉴别真伪的方法。
【背景技术】
在现有防伪技术中, 如身份证、 护照等证件所采用的防伪措施主要 有如下几种: 1 )较普通方式是在证件上设置激光全息图案, 这种采用 人眼进行识别的防伪标识的缺点在于, 只要采用类似的设备就能进行仿 制伪造, 无法区分真假, 不仅防伪功能不强, 而且成本极高; 2 )对证 件表面防伪识别的视读信息采用直观的物理防伪方式, 将防伪点层次按 级别管理,缺点是易泄密、 防伪方式采用的是共性化防伪、一点被突破, 全线失守; 3 )将证件的视读信息以及加密点存储在与证件制成一体的 IC芯片中, 这种方式的缺点是一但芯片损坏,证件的机读防伪识别功能 便失效了, 需要通过网络到原数据库中去查询, 查询起来不方便, 特别 是在无法与网络连接的情况下将难以实现查验, 另外 IC卡芯片成本极 高。
现有的防伪技术中, 还包括一种通过编码微孔防伪的方法, 请参阅 中国专利申请号: 99100515. 5 , 该方法用编码版(微孔母版)作 观粒 子阻挡层来进行重带电粒子照射, 在检验每枚标识时, 通过微孔分布图
与编码版的微孔分布比较以鉴别真伪, 但是这种防伪技术的缺点在于, 这种微孔同样易于仿制, 而且防伪功能不强。
另外, 现有技术中, 利用光学读取装置读取物体表面印刷的微型图 像编码技术已日益成熟, 请参阅专利号 ZL 02122633. 4的中国发明专利, 发明名称为: 制作图像指标的方法及应用图像指标的处理***, 该专利 详细揭示了一种可识别微型图像编码的装置, 该微型图像编码可为每平 方公分最多设置有 13950个黑点的点阵, 因此不借助特殊器材无法辨认 其图像编码的构成, 具有不易被普通人所识别的特性。
【发明内容】
本发明的目的在于提供一种新的可识别微型图像编码鉴别真伪的 方法, 所要解决的技术问题是使微型图像编码识别装置可以根据对人眼 所无法识别的微型图像编码的查验鉴别待验物品的真伪。
本发明的目的及解决其技术问题是采用以下技术方案来实现的: 本发明提供一种印刷有微型图像编码的防伪证书, 所述的防伪证书 表面印刷有与待验物品属性对应的微型图像编码, 该微型图像编码是由 多个微图像单元组成, 并以每个微型图像编码中多个微图像单元的组合 方式区分不同的微型图像编码, 且该多个微图像单元的组合形成人眼所 不能识别的微小图形; 所述的微型图像编码经过唯一解码得到的验证码 与待验物品属性对应。
本发明进一步提供一种一种微型图像编码防伪***, 包括: 防伪证书, 表面印刷有用以代表待验物品的微型图像编码;
光学模块, 用于获取待验物体表面显微放大的光学影像; 图像传感器, 将光学模块获取的光学影像生成为数字影像; 图像识别处理单元, 从图像传感器生成的数字影像中识别并拾取出 微型图像编码, 将该微型图像编码解码为与其唯一对应的验证码; 存储单元, 存储有将各待验物品属性与由代表该待验物品的微型图 像编码解码得到的验证码对应的对应表;
控制模块, 根据图像识别处理单元解码得到的验证码在对应表中查 找相应的待验物品属性, 并将该待验物品属性输出。
依据本发明提出的一种可识别微型图像编码鉴别真伪的方法, 其包 括以下步骤: 设置与待验物品配对的防伪证书, 在该防伪证书表面印刷 代表该待验物品的微型图像编码, 该微型图像编码解码后得到的验证码 与该待验物品的属性对应; 生成将各待验物品属性分别与不同的验证码 对应的对应表, 并将该对应表存储在存储单元中; 光学模块获取物体表 面显微放大后的光学影像, 并由图像传感器将该光学影像生成为数字影 像; 图像识别处理单元从图像传感器生成的数字影像中检查是否存在微 型图像编码, 如果不存在, 则等待图像传感器发送存在微型图像编码的 数字影像; 如果数字影像中存在微型图像编码, 则拾取该微型图像编码 并解码为与其唯一对应的验证码, 控制模块在存储单元中调取对应表, 并在对应表中查取与解码得到的验证码对应的待验物品属性, 如果未查 找到对应表中有与验证码对应的待验物品属性, 则等待图像传感器发送 存在微型图像编码的数字影像; 如果控制模块在对应表中查找到与验证 码对应的待验物品属性, 则将该待验物品属性输出, 并利用该待验物品
属性查验待验物品真伪。
借由上述技术方案, 本发明可识别微型图像编码鉴别真伪的方法具 有下列优点:
本发明是通过获取防伪证书表面印刷的微型图像编码, 将该微型图 像编码解码后进行查验。 采用本发明的防伪***中, 防伪证书是由任何 可以印刷微型图像编码的物体制成, 或者是直接在表面印刷有微型图像 编码的待验物体本身, 而印刷微型图像编码仅需打印即可, 因此成本低 廉, 另外, 对前期未设置防伪的待验物品, 可以通过在其表面印刷微型 图像编码的方式快速实现防伪功能。
上述的微型图像编码是以极为微小的微图像单元构成, 因此既不会 影响防伪证书表面印刷的其他图形文字的视觉效果, 又可以保证在不使 用特殊仪器的情况下, 普通人无法分辨该微型图像编码的图形构成, 以 保证该微型图像编码的安全性, 同时, 在防伪证书的表面大面积损坏的 情况下, 微型图像编码识别装置依然可以通过在极小的未损坏部分上获 取微型图像编码来查验真伪。
上述微型图像编码极为微小,每个微型图像编码都是由多个微图像 单元组成, 并以微图像单元之间的组合方式区分各个微型图像编码, 而 每个微图像单元直径至少可以小至 40μ ηι,如采用 16个微图像单元构成 一个微型图像编码, 则其中 7 个微图像单元用于定位微型图像编码, 9 个微图像单元组成 3 x 3 的平面二维状态区域阵列, 以此得到 49 ( =262144 )种不同的状态组合, 对应得到 262144个可以定义不同产品 检验码的不同数值, 可从所述的 262144种状态组合取出其中的 65536
中状态组合,以对应万国码编码结构中一字面所属的 65536个编码位置, 其余状态组合则可保留作为其他用途, 由此可知, 微型图像编码是肉眼 所不能识别的, 且微图像单元阵列组合方式多样, 因此极为适合作为防 伪认证使用, 另外微型图像编码也可利用印刷其所使用的油墨与印刷其 他部分的油墨相区别, 再利用微型图像编码识别装置的滤光片过滤得到 微型图像编码, 从而使本发明的防伪证书上印刷的微型图像编码必须在 同时具备特殊光源照射、 高倍数显微放大、 特定滤光片滤光等均具备的 条件下才可获取, 进一步实现了对作为防伪标识的微型图像编码的保 护。
本发明采取直接读取防伪证书表面印刷的微型图像编码的方式查 验,因此具有识别速度快,在较短时间内完成大量待验物品的查验工作。
【附图说明】
图 1是本发明的微型图像编码防伪***的结构框图。
图 2是本发明的防伪证书应用在酒瓶上的示意图。
图 3是本发明防伪证书上印刷多组微型图像编码的示意图。
图 4是微型图像编码中微图像单元阵列组合结构的示意图。
图 5是微型图像编码的状态区域设置方式的示意图。
图 6是本发明可识别微型图像编码鉴别真伪的方法流程图。
【具体实施方式】
以下结合附图及较佳实施例, 对依据本发明提出的一种可识别微型图像 编码鉴别真伪的方法, 其具体实施方式、 结构、 特征及其功效, 详细说 明如后。
请参阅图 1所示, 是本发明的微型图像编码防伪***的结构框图, 该微型图像编码防伪***包括微型图像编码识别装置和防伪证书, 防伪 证书表面印刷有用以代表待验物品的微型图像编码, 每张防伪证书上所 印刷的微型图像编码是为与不同待验物品的属性一一对应的。
上述微型图像编码识别装置包括: 用于获取防伪证书表面显敫放大 的光学影像的光学模块; 将光学模块获取的光学影像生成为数字影像的 图像传感器; 图像识别处理单元, 从图像传感器生成的数字影像中拾取 微型图像编码, 并将该微型图像编码解码为与其唯一对应的验证码; 存 储单元, 存储有将各待验物品属性与由代表该待验物品的微型图像编码 解码得到的验证码对应的对应表; 控制模块, 根据图像识别处理单元解 码得到的验证码在对应表中查找相应的待验物品属性, 并将该待验物品 属性输出。
上述的待验物品属性包括待验物品名称、产品设备号、生产商名称、 销售商名称、 或者产品型号, 查验人员根据微型图像编码识别装置读取 微型图像编码后输出的待验物品属性查验物品真伪。 此外, 为了方便查 验人员直接查验, 还可以在防伪证书表面印刷有待验物品属性, 从而当 微型图像编码识别装置输出待验物品属性时, 查验人员还可以直接从防 伪证书表面上所印制的待验物品属性判断所查验物品的真伪。
请参阅图 2所示, 是本发明的防伪证书应用在酒瓶上的示意图, 上 述的微型图像编码 1 0印刷在防伪证书 1表面, 是由多个微图像单元 16 组成, 并以每个微型图像编码 10中多个微图像单元 16的组合方式区分 不同的微型图像编码 10 , 且该多个微图像单元 16的组合形成人眼所不 能识别的微小图形。 本附图 2中将防伪证书设置在酒瓶顶部, 也可设置 在其他待验物品的各个位置上, 也可是独立放置在包装盒内防伪凭证。
请参阅图 3、 图 4、 图 5所示, 图 3是本发明的防伪证书上印刷多 组微型图像编码的示意图, 图 4是微型图像编码中微图像单元阵列组合 结构的示意图, 图 5是微型图像编码的状态区域设置方式的示意图, 以 清楚说明本发明的设计。 微型图像编码 10包括内容数据部 12及一表头 部 14。根据本实施例, 内容数据部 12包括由 9个圓点 16构成的 9个微 图像单元, 且所述的内容数据部 12所占区域分为 9个状态区域 18 , 从 而构成一 3 χ 3平面二维状态区域阵列, 是各个状态区域 18均包括一个 圓点 16。 根据本实施例的设计, 可利用一个圓点 16 在一状态区域 18 中的不同摆放位置,来代表所对应的指标数据中的一个数值。具体来讲, 如图 5所示, 一状态区域 18可均分为四个虚拟区域, 圓点 16选择性置 于右下方、 左下方、 左上方、 右上方的四个虚拟区域的一个中, 以分别 代表四个不同位值 00、 01、 10、 或 11。 因此, 图 4内容数据部 12所示 的位值是由图 6中相应配置关系的微图像单元状态组合而成。 因各所述 状态区域 18均分为四个虚拟区域, 当各个圓点 16选择性设置于四个虚 拟区域之一,可使所述的内容数据部 12具有 49 ( =262144 )种状态组合。 根据上述可知, 利用微图像单元(即圓点 16 )在不同虚拟区域中的摆放
位置来对微型图像编码进行解码, 而虚拟区域的设置、 微图像单元的摆 放位置是复制者不可掌握的, 因此, 对由多个微图像单元组成的微型图 像编码是具有极高的不可复制性的。
本发明的微型图像编码防伪***还包括与控制模块连接的输出单 元,控制模块可将根据验证码对应查找得到的待验物品属性通过该输出 单元向用户输出。具体而言,该输出单元可以是包括显示屏的显示模块, 也可以是包括扬声器的音频输出模块。
本发明的第一实施例中, 上述的微型图像编码以与防伪证书表面的 颜色相区别的油墨印刷, 即防伪证书表面上印刷微型图像编码所使用的 油墨颜色以与印刷微型图像编码以外的油墨颜色相区别; 所述的光学模 块设有透镜和滤镜, 该透镜将防伪证书表面的光学影像放大, 滤镜将光 学影像中与微型图像编码颜色相异的光过滤。
本发明的第二实施例中, 上述的微型图像编码是以特殊油墨印刷在 防伪证书表面, 该特殊油墨在特定波长的光照射下所反射的光波与普通 油墨相异; 所述的防伪证书表面印刷的微型图像编码以外的信息以普通 油墨印刷; 所述的光学模块设有特殊光源、 滤镜和透镜, 该特殊光源将 特定波长的光照射在防伪证书表面, 透镜将防伪证书表面的光学影像放 大, 滤镜将特殊油墨在特殊光源照射下所反射的光波波段以外的光过 滤。
上述的防伪证书表面上可设置以普通油墨印刷的隐蔽区, 代表待验 物品的微型图像编码以特殊油墨印刷在隐蔽区内; 普通油墨的颜色与特 殊油墨的颜色相同, 从而将微型图像编码与普通油墨印刷的部分利用相
同颜色混在一起, 使普通使用者在使用显微放大设备观察时无法获得微 型图像编码的微图像单元阵列结构。
本发明的第三实施例中, 上述的微型图像编码是以大量吸收红外光 的吸收油墨印刷在防伪证书表面; 印刷有微型图像编码的防伪证书表面 上以不吸收红外光的非吸收油墨印刷微型图像编码以外的信息; 所述的 光学模块设有红外光源、 滤镜和透镜, 该红外光源将红外光照射在防伪 证书表面, 透镜将防伪证书表面的光学影像放大, 滤镜将红外波段以外 频率的光波过滤。 具体而言, 上述的吸收油墨以含碳的油墨为宜。
上述的防伪证书表面上以非吸收油墨印刷有隐蔽区, 代表待验物品 的微型图像编码以吸收油墨印刷在隐蔽区内, 非吸收油墨的颜色与吸收 油墨的颜色相同, 从而将微型图像编码与非吸收油墨印刷的部分利用相 同颜色混在一起, 使普通使用者在使用显微放大设备观察时无法获得微 型图像编码的微图像单元阵列结构。 请参阅图 3所示, 是利用本发明的微型图像编码防伪***防伪的方 法流程图, 根据本发明的微型图像编码防伪***, 其鉴别真伪的方法如 下:
设置与待验物品配对的防伪证书, 在该防伪证书表面印刷代表该待 验物品的微型图像编码, 该微型图像编码解码后得到的验证码与该待验 物品的属性对应;
生成将各待验物品属性分别与不同的验证码对应的对应表, 并将该 对应表存储在存储单元中;
光学模块获取物体表面显微放大后的光学影像, 并由图像传感器将 该光学影像生成为数字影像;
图像识别处理单元从图像传感器生成的数字影像中检查是否存在 微型图像编码, 如果不存在, 则等待图像传感器发送存在微型图像编码 的数字影像;
如果数字影像中存在微型图像编码, 则拾取该微型图像编码并解码 为与其唯一对应的验证码, 控制模块在存储单元中调取对应表, 并在对 应表中查取与解码得到的验证码对应的待验物品属性, 如果未查找到对 应表中有与验证码对应的待验物品属性, 则等待图像传感器发送存在微 型图像编码的数字影像;
如果控制模块在对应表中查找到与验证码对应的待验物品属性, 则 将该待验物品属性输出, 并利用该待验物品属性查验待验物品真伪。
Claims
1、 一种印刷有微型图像编码的防伪证书, 其特征在于: 所述的 防伪证书表面印刷有与待验物品属性对应的微型图像编码,该微型图 像编码是由多个微图像单元组成,并以每个微型图像编码中多个微图 像单元的组合方式区分不同的微型图像编码,且该多个微图像单元的 组合形成人眼所不能识别的微小图形;所述的微型图像编码经过唯一 解码得到的验证码与待验物品属性对应。
2、 根据权利要求 1所述的印刷有微型图像编码的防伪证书, 其 特征在于, 所述的微型图像编码是以特殊油墨印刷在防伪证书表面, 该特殊油墨在特定波长的光照射下所反射的光波与普通油墨相异;所 述的防伪证书表面以普通油墨印刷微型图像编码以外的信息,防伪证 书表面除微型图像编码外均不含有特殊油墨。
3、 根据权利要求 2所述的印刷有微型图像编码的防伪证书, 其 特征在于,所述的微型图像编码是以大量吸收红外光的吸收油墨印刷 在防伪证书表面。
4、 根据权利要求 3所述的印刷有微型图像编码的防伪证书, 其 特征在于, 所述的吸收油墨是为含碳油墨。
5、 根据权利要求 2所述的印刷有微型图像编码的防伪证书, 其 特征在于, 所述的防伪证书表面上以普通油墨印刷有隐蔽区, 与待验 物品属性对应的微型图像编码以特殊油墨印刷在隐蔽区内;所述的普 通油墨的颜色与特殊油墨的颜色相同。
6、 根据权利要求 1所述的印刷有微型图像编码的防伪证书, 其 特征在于, 所述的待验物品属性包括待验物品名称、 产品分类、 产品
设备号、 生产商名称、 销售商名称、 或者产品型号。
7、 一种微型图像编码防伪***, 其特征在于, 包括:
防伪证书, 表面印刷有用以代表待验物品的微型图像编码; 光学模块, 用于获取待验物体表面显微放大的光学影像; 图像传感器, 将光学模块获取的光学影像生成为数字影像; 图像识别处理单元,从图像传感器生成的数字影像中识别并拾取 出微型图像编码, 将该微型图像编码解码为与其唯一对应的验证码; 存储单元,存储有将各待验物品属性与由代表该待验物品的微型 图像编码解码得到的验证码对应的对应表;
控制模块,根据图像识别处理单元解码得到的验证码在对应表中 查找相应的待验物品属性, 并将该待验物品属性输出。
8、 根据权利要求 7所述的微型图像编码防伪***, 其特征在于 其还包括与控制模块连接的输出单元;所述控制模块可将根据验证码 对应查找得到的待验物品属性通过该输出单元向用户输出。
9、 根据权利要求 7所述的微型图像编码防伪***, 其特征在于 其中所述的防伪证书表面上印刷微型图像编码所使用的油墨颜色以 与印刷微型图像编码以外的油墨颜色相区别;所述的光学模块设有透 镜和滤镜, 该透镜将物体表面的光学影像放大, 滤镜将光学影像中与 微型图像编码颜色相异的光过滤。
10、根据权利要求 7所述的微型图像编码防伪***, 其特征在于 其中所述的微型图像编码是以特殊油墨印刷在防伪证书表面,该特殊 油墨在特定波长的光照射下所反射的光波与普通油墨相异;所述的防
伪证书表面印刷的微型图像编码以外的信息以普通油墨印刷;所述的 光学模块设有特殊光源、 滤镜和透镜, 该特殊光源将特定波长的光照 射在物体表面, 透镜将物体表面的光学影像放大, 滤镜将特殊油墨在 特殊光源照射下所反射的光波波段以外的光过滤。
11、根据权利要求 7所述的微型图像编码防伪***, 其特征在于 其中所述的微型图像编码是以大量吸收红外光的吸收油墨印刷在防 伪证书表面;印刷有微型图像编码的防伪证书表面上以不吸收红外光 的非吸收油墨印刷微型图像编码以外的信息;所述的光学模块设有红 外光源、 滤镜和透镜, 该红外光源将红外光照射在物体表面, 透镜将 物体表面的光学影像放大, 滤镜将红外波段以外频率的光波过滤。
12、 根据权利要求 11所述的微型图像编码防伪***, 其特征在 于其中所述的吸收油墨是为含碳油墨。
13、 根据权利要求 11所述的微型图像编码防伪***, 其特征在 于其中所述的防伪证书表面上以非吸收油墨印刷有隐蔽区,代表待验 物品的微型图像编码以吸收油墨印刷在隐蔽区内;所述的非吸收油墨 的颜色与吸收油墨的颜色相同。
14、根据权利要求 7所述的微型图像编码防伪***, 其特征在于 其中所述的微型图像编码是由多个微图像单元组成,并以每个微型图 像编码中多个微图像单元的组合方式区分不同的微型图像编码,且该 多个微图像单元的组合形成人眼所不能识别的微小图形。
15、一种可识别微型图像编码鉴别真伪的方法, 其特征在于其包 括以下步骤:
设置与待验物品配对的防伪证书,在该防伪证书表面印刷代表该 待验物品的微型图像编码,该微型图像编码解码后得到的验证码与该 待验物品的属性对应;
生成将各待验物品属性分别与不同的验证码对应的对应表,并将 该对应表存储在存储单元中;
光学模块获取物体表面显微放大后的光学影像,并由图像传感器 将该光学影像生成为数字影像;
图像识别处理单元从图像传感器生成的数字影像中检查是否存 在微型图像编码, 如果不存在, 则等待图像传感器发送存在微型图像 编码的数字影像;
如果数字影像中存在微型图像编码,则拾取该微型图像编码并解 码为与其唯一对应的验证码,控制模块在存储单元中调取对应表, 并 在对应表中查取与解码得到的验证码对应的待验物品属性,如果未查 找到对应表中有与验证码对应的待验物品属性,则等待图像传感器发 送存在微型图像编码的数字影像;
如果控制模块在对应表中查找到与验证码对应的待验物品属性, 则将该待验物品属性输出, 并利用该待验物品属性查验待验物品真 伪。
16、 根据权利要求 15所述的可识别微型图像编码鉴别真伪的方 法, 其特征在于: 所述控制模块可将根据验证码对应查找得到的待验 物品属性通过输出单元向用户输出。
17、 根据权利要求 15所述的可识别微型图像编码鉴别真伪的方
法, 其特征在于: 所述的待验物品属性包括待验物品名称、 产品设备 号、 生产商名称、 销售商名称、 或者产品型号。
18、根据权利要求 15至 17任一权利要求所述的可识别微型图像 编码鉴别真伪的方法, 其特征在于: 所述防伪证书表面还印刷有待验 物品属性。
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CN117893227A (zh) * | 2024-03-13 | 2024-04-16 | 深圳市金雅福首饰制造有限公司 | 一种饰品防伪标识生成、验证方法、设备及可读存储介质 |
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