Invisible-feature detection device and method, sheet recognition device, sheet handling device, print inspection device
A detection device and characteristic technology, applied in character and pattern recognition, banknote authenticity inspection, handling coins or valuable banknotes, etc., can solve problems such as printing quality inspection of invisible characteristics, ink filling errors, etc.
Inactive Publication Date: 2019-03-08
GLORY KOGYO KK
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Problems solved by technology
[0008] In this way, as an anti-counterfeiting means for sheets, ink with invisible characteristics is effective, but on the other hand, ink filling errors are prone to occur in the printing process of sheets, and it is also necessary to check them.
[0009] However, since such a sheet using invisible ink cannot be inspected with the naked eye under room light, the printing quality of the invisible characteristic cannot be inspected, so in its manufacturing process, in order to find ink filling errors and require a special approach
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Embodiment approach 1
[0062] The print inspection device according to this embodiment is an inspection device for large-size banknotes on which a plurality of small printed sheets (banknotes) are printed vertically and horizontally, and is installed in a serial number printing device for large-size banknotes. And, the visible light image and the infrared light image of the large-open banknote held on the drum surface of the serial number printing device are sequentially photographed, and the serial number part of the visible light image and the infrared light image is combined with the visible light image. and the reference image for the infrared image are compared respectively.
[0063] The large-open banknote 110 inspected by the printing inspection device related to this embodiment is as follows: figure 1 As shown, it is a large-scale printed matter printed with a plurality of small printed sheets (banknote faces) 111 vertically and horizontally, as figure 2 As shown, on each small print sheet...
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The present invention provides an invisible-feature detection device capable of easily detecting a serial number with an invisible feature at low cost, a sheet recognition device, a sheet handling device, a print inspection device, and an invisible-feature detection method. The invisible-feature detection device detects the invisible feature of issuing number printed on the sheet material and includes: a detection unit, which detects such invisible feature from the sheet material; a storage unit, which stores basic data of said invisible feature on the basis of detection from a base sheet material, wherein the base sheet material is printed with a pattern where said invisible feature is eliminated; and a determination unit, which compares the invisible feature from the sheet material withthe basic data, and if there is a difference between corresponding data of detection object zones where the issuing number is printed, it is determined that the sheet material has the issuing number having said invisible feature.
Description
technical field [0001] The invention relates to an invisible characteristic detection device, a sheet identification device, a sheet processing device, a printing inspection device and an invisible characteristic detection method. In more detail, it relates to an invisible characteristic detection device, a sheet identification device, a sheet processing device, a printing inspection device, and an invisible characteristic detection method for sheet-like printed matter, and is especially suitable for detecting the invisible characteristic of the issue number part. An invisible characteristic detection device and an invisible characteristic detection method for detection, a sheet identification device and a print inspection device provided with the invisible characteristic detection device, and a sheet processing device provided with the sheet identification device. Background technique [0002] In recent years, technologies such as color copiers and color DTP (Desktop Publis...
Claims
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IPC IPC(8): G07D7/20G07D7/12G07D7/0047G07D7/04G06V10/143
CPCG07D7/0047G07D7/04G07D7/12G07D7/20G07D7/121G07D7/2016G07D7/205G06V20/80G06V20/95G06V10/143G07D7/1205G07D7/0055G07D7/206G01N21/64
Inventor 安达和隆大西弘之鹈饲和岁
Owner GLORY KOGYO KK