A method including correcting output of an image sensor unit based on correction information of the image sensor unit that captures and discriminates a paper sheet. A apparatus includes an image sensor unit which includes an image capturing element that captures a banknote so as to discriminate the banknote, a controller that controls the image sensor unit, and a first attachment part, to which the image sensor unit is attached to be detachable, and which includes a connection terminal that connects the image sensor unit and the controller with each other, and which is arranged in a conveyance path for conveying the banknote.

The apparatus may include a microprocessor. In electronic communication with the microprocessor there may be a memory cell. In electronic communication with the microprocessor there may be a light source circuit. In electronic communication with the microprocessor there may be a camera circuit. In electronic communication with the microprocessor there may be a nano light-emitting diode display circuit. Stored in the memory cell there may be image-processing instructions. Stored in the memory cell there may be light-source control instructions. The memory cell; the light source circuit; the camera circuit; and the nano light-emitting diode display circuit may be embedded in an information card. The instructions may be configured to cause the microprocessor to count objects set in motion by a user. The motion may be a motion of manually flicked objects.

The apparatus may include a microprocessor. In electronic communication with the microprocessor there may be a memory cell. In electronic communication with the microprocessor there may be a light source circuit. In electronic communication with the microprocessor there may be a camera circuit. In electronic communication with the microprocessor there may be a nano light-emitting diode display circuit. Stored in the memory cell there may be image-processing instructions. Stored in the memory cell there may be light-source control instructions. The memory cell; the light source circuit; the camera circuit; and the nano light-emitting diode display circuit may be embedded in an information card. The instructions may be configured to cause the microprocessor to count objects set in motion by a user. The motion may be a motion of manually flicked objects.

A dual code authentication process combining a visible QR code with an invisible randomly generated code which can be alpha, numeric, symbol or image that can only be read with a reading device. A data generation engine is used to create the generated code which is assigned to the QR code and stored in a cloud based database. The QR code is decodable by a handheld reading device which communicates with the cloud based database releasing a copy of the generated code to the reading device. A reader is then used to decode the invisible printed code wherein the user can compare the printed code on the document and the code stored on the cloud based database to determine a match and authenticity.

A dual code authentication process combining a visible QR code with an invisible randomly generated code which can be alpha, numeric, symbol or image that can only be read with a reading device. A data generation engine is used to create the generated code which is assigned to the QR code and stored in a cloud based database. The QR code is decodable by a handheld reading device which communicates with the cloud based database releasing a copy of the generated code to the reading device. A reader is then used to decode the invisible printed code wherein the user can compare the printed code on the document and the code stored on the cloud based database to determine a match and authenticity.

A banknote monitoring apparatus includes a reception section that receives information including a serial number from each of a plurality of banknote processing apparatuses processing a banknote with the serial number; and a control section that determines whether a specification of the banknote has been changed based on an identification rate of the serial number obtainable with the information received.

A banknote monitoring apparatus includes a reception section that receives information including a serial number from each of a plurality of banknote processing apparatuses processing a banknote with the serial number; and a control section that determines whether a specification of the banknote has been changed based on an identification rate of the serial number obtainable with the information received.

An optical device includes an array of lenses and a plurality of first and second segments disposed under the array of lenses. At a first viewing angle, the array of lenses presents a first image for viewing without presenting the second image for viewing, and at a second viewing angle different from the first viewing angle, the array of lenses presents for viewing the second image without presenting the first image for viewing. In some examples, individual ones of the first and second segments can comprise specular reflecting, transparent, diffusely reflecting, and/or diffusely transmissive features. In some examples, individual ones of the first and second segments can comprise transparent and non-transparent regions. Some examples can incorporate more than one region producing an optical effect.

An optical device includes an array of lenses and a plurality of first and second segments disposed under the array of lenses. At a first viewing angle, the array of lenses presents a first image for viewing without presenting the second image for viewing, and at a second viewing angle different from the first viewing angle, the array of lenses presents for viewing the second image without presenting the first image for viewing. In some examples, individual ones of the first and second segments can comprise specular reflecting, transparent, diffusely reflecting, and/or diffusely transmissive features. In some examples, individual ones of the first and second segments can comprise transparent and non-transparent regions. Some examples can incorporate more than one region producing an optical effect.

The apparatus may include a microprocessor. In electronic communication with the microprocessor there may be a memory cell. In electronic communication with the microprocessor there may be a light source circuit. In electronic communication with the microprocessor there may be a camera circuit. In electronic communication with the microprocessor there may be a nano light-emitting diode display circuit. Stored in the memory cell there may be image-processing instructions. Stored in the memory cell there may be light-source control instructions. The memory cell; the light source circuit; the camera circuit; and the nano light-emitting diode display circuit may be embedded in an information card. The instructions may be configured to cause the microprocessor to count objects set in motion by a user. The motion may be a motion of manually flicked objects.