An apparatus and method for checking value documents, in particular bank notes, and a value-document processing system having at least one sensor for capturing an electromagnetic radiation. Transmitted by a value document and generating corresponding first sensor signals and for capturing an electromagnetic radiation remitted by the value document and generating corresponding second sensor signals, and an evaluation device for checking whether the value document has a foreign object. In particular adhesive tape, taking into account the first and second sensor signals which correspond to the electromagnetic radiation respectively transmitted or remitted in the region of the edge of the value document. The apparatus and method prevent a deformation in the region of the edge of a value document from being identified as a foreign object.

An apparatus and method for checking value documents, in particular bank notes, and a value-document processing system having at least one sensor for capturing an electromagnetic radiation. Transmitted by a value document and generating corresponding first sensor signals and for capturing an electromagnetic radiation remitted by the value document and generating corresponding second sensor signals, and an evaluation device for checking whether the value document has a foreign object. In particular adhesive tape, taking into account the first and second sensor signals which correspond to the electromagnetic radiation respectively transmitted or remitted in the region of the edge of the value document. The apparatus and method prevent a deformation in the region of the edge of a value document from being identified as a foreign object.

A system for evaluating a stream of sensor data formed by means of at least one sensor for a plurality of value documents includes at least two evaluation units and a data bus. Each of the evaluation units has first and second interfaces for receiving or transferring the sensor data stream with the sensor data, a third interface for receiving and transferring evaluation data, a working memory, at least one processor connected to the working memory for evaluating the sensor data in the working memory, and a relaying device connected to the first and the second interfaces and to the working memory for receiving a sensor data stream received via the first interface, at least partial relaying to the second interface and to storage of at least part of the data of the sensor data stream in the working memory, with the data bus being connected to the third interface.

A banknote recognition and classification method and system are provided. In the method and system, a large number of reliable samples which are easy to acquire currently are used to establish a sample signal degradation model which meets application requirements by means of a statistical method, sample information is input into the banknote sample signal degeneration model to acquire various banknote sample information corresponding to the brand new banknotes to be learned; the various banknote sample information is input to perform classifier learning, and a banknote classification model is output; then a classifier learns to perform classification and recognition on a sample to be recognized.

A banknote recognition and classification method and system are provided. In the method and system, a large number of reliable samples which are easy to acquire currently are used to establish a sample signal degradation model which meets application requirements by means of a statistical method, sample information is input into the banknote sample signal degeneration model to acquire various banknote sample information corresponding to the brand new banknotes to be learned; the various banknote sample information is input to perform classifier learning, and a banknote classification model is output; then a classifier learns to perform classification and recognition on a sample to be recognized.

An apparatus, a corresponding method, and value-document processing system for checking value documents that has at least two radiation sources for giving off electromagnetic radiation with which a value document is irradiated, at least one sensor for capturing the electromagnetic radiation emanating from the value document, and generating corresponding sensor signals. The apparatus has an evaluation device configured to derive from the sensor signals corrected sensor signals taking into account at least one spectral property of the electromagnetic radiation of the at least two radiation sources. The sensor signals corrected in this way reproduce the actual reflection or transmission behavior of the value document substantially more precisely than the uncorrected sensor signals. Disturbing remission or transmission artifacts may be attributed to so-called auxiliary emissions of the radiation sources are eliminated or at least reduced.

A banknote is irradiated with lights of plural wavelengths. Images of the banknote for each wavelength are acquired. An IR ratio image having a pixel value that is a ratio of a pixel value of the image acquired by the visible light to a corresponding pixel value of the image acquired by the infrared light is generated. The banknote image and the IR ratio image are corrected by a coefficient corresponding to the banknote type, the banknote orientation, and the wavelength. From the banknote image or the IR ratio image, by using the information pertaining to the banknote type, the banknote orientation, and the wavelength, intermediate evaluation values are calculated for each wavelength. Mahalanobis distance is calculated based on the intermediate evaluation values, an average value and a variance-covariance matrix of the intermediate evaluation values, and a degree of soiling is determined based on the Mahalanobis distance.

A banknote is irradiated with lights of plural wavelengths. Images of the banknote for each wavelength are acquired. An IR ratio image having a pixel value that is a ratio of a pixel value of the image acquired by the visible light to a corresponding pixel value of the image acquired by the infrared light is generated. The banknote image and the IR ratio image are corrected by a coefficient corresponding to the banknote type, the banknote orientation, and the wavelength. From the banknote image or the IR ratio image, by using the information pertaining to the banknote type, the banknote orientation, and the wavelength, intermediate evaluation values are calculated for each wavelength. Mahalanobis distance is calculated based on the intermediate evaluation values, an average value and a variance-covariance matrix of the intermediate evaluation values, and a degree of soiling is determined based on the Mahalanobis distance.

A cash processing apparatus includes a storage section, a money depositing conveyance module, a money dispensing conveyance module and an identification module. The storage section stores money by denominations for paying out. The money depositing conveyance module conveys money from a money depositing port to the storage section. The money dispensing conveyance module conveys money from the storage section to a money dispensing port. The identification module identifies the denomination of the money conveyed by the money depositing conveyance module and also detects stain of the money. The money depositing conveyance module collects the money of which stain is detected by the identification module to a collection section, and conveys the money of which no stain is detected by the identification module to the storage section by individual denominations.

A cash processing apparatus includes a storage section, a money depositing conveyance module, a money dispensing conveyance module and an identification module. The storage section stores money by denominations for paying out. The money depositing conveyance module conveys money from a money depositing port to the storage section. The money dispensing conveyance module conveys money from the storage section to a money dispensing port. The identification module identifies the denomination of the money conveyed by the money depositing conveyance module and also detects stain of the money. The money depositing conveyance module collects the money of which stain is detected by the identification module to a collection section, and conveys the money of which no stain is detected by the identification module to the storage section by individual denominations.