RU2320018C2 - Video complex for determining authenticity of securities and/or documents - Google Patents

Abstract

FIELD: engineering of devices for visually checking securities and/or documents, which are protected from forgery, and may be used, in particular, for creating video complexes, which ensure conduction of examinations at qualitatively high level.

SUBSTANCE: video complex contains a set of video sources, connected to interface block for controlling adjustment units, management and commutation of outputs of video sources, to inputs of which outputs of video sources are connected respectively, and its output is connected to one of ports of computer system block, where at least one of video sources is made in form of spectral camera which has a body with viewing port, inside which illumination sources are positioned which are direct in ultraviolet, infrared and individual sections of visible spectrum of wave lengths and indirectly falling broadband sources and in given sections of visible spectrum of wave lengths, video camera, and also block for switching light filters with autonomous drive, where radiation sources and block for switching light filters are made with possible interface management of options and modes of operation of illumination sources and selection of light filter appropriate for given range of illumination. Video sources may be made in form of colored camera, which contains body with viewing port, inside of which video camera of colored image and illumination sources of directly and indirectly falling white light; in form of observation camera which contains a body with viewing port, inside which a video camera of black and white image and illumination sources of direct infrared and white light are positioned; and in form of video source, which contains a body with viewing port, inside of which a magneto-optical camera is positioned with possible interface management. To examine objects in passing light the video complex is provided with an additional illumination table, which contains a body with light-dissipating window and a reflector and emitters in infrared and visible ranges of wave lengths positioned inside the body.

EFFECT: increased quality of conduction of expertise and reduced costs of operations, connected to examination of broad class of documents, banknotes, securities and other materials.

5 cl, 8 dwg

Description

The technical field to which the invention relates.

The present invention relates to the field of visual inspection of securities and / or documents protected from counterfeiting, and can be used to create high-performance video systems for conducting high-level examinations, determining the authenticity and research of a wide class of documents, banknotes, securities and other materials in various spectral ranges of visible, infrared and ultraviolet regions in reflected, oblique and transmitted light, as well as for the analysis of magnetic security features.

State of the art

Currently, there are many devices designed to verify the authenticity of securities by irradiating them invisible to the human eye, such as infrared (IR) radiation. So, in RF patents №2106013 (02.27.1998), №2158443 (27.10.2000), №2172982 (08.28.2001), №2203188 (04.27.2003), certificates for utility model of the Russian Federation №19194 (10.08.2001) No. 20396 (10.27.2001), as well as in US patents No. 4650319 (03.17.1987) and No. 6438262 (08.20.2002), applications for US patent No. 2001/0035491 (01.11.2001) and No. 2002/0051562 (02.05. 2002), EPO application No. 0878781 (11/18/1998) and international application No. WO 02/071348 (09/12/2002) describe various devices incorporating infrared emitters and corresponding receivers (sensors) of this radiation.

Also known are devices for verifying the authenticity of banknotes by irradiating them with ultraviolet (UV) radiation invisible to human eyes, for example, RF patent No. 2123723 (04/01/1997).

Each of the aforementioned known devices makes it possible to check an individual security for the presence of, as a rule, one or two of the security features invisible to the human eye, therefore, to identify all the attributes, even for one security, it is necessary to use, as a rule, a number of various principles actions of devices. At the same time, the controlled security needs to be sequentially moved from one device to another, each time after moving the security to the desktop of the next device, in addition to controlling the security label itself, it also needs the necessary auxiliary operations related to the choice of the operating modes of the device and the orientation of the security on the desktop etc. Ultimately, this leads to a significant increase in the cost of verification work and a decrease in labor productivity. This is especially noticeable when conducting forensic examinations related to determining the authenticity and research of a wide class of documents, banknotes, securities and other materials, as well as the analysis of magnetic security features.

Disclosure of invention

The purpose (technical result) of the present invention is to eliminate the above disadvantages, that is, improving the quality of the examination, reducing the cost of conducting work related to forensic research of a wide class of documents, banknotes, securities and other materials in order to determine their authenticity, as well as analysis of various security features and their imitators.

In order to achieve the above technical result, a video complex is proposed for determining the authenticity of securities and / or documents, which includes a set of video sources that allow studies of securities and / or documents in the specified spectral ranges of visible, infrared and ultraviolet regions in reflected, oblique, and transmitted light, and beyond these values, as well as a computer for processing and analyzing the resulting image at the output of one of the video sources.

Unlike the prototype and analogs, the claimed video complex contains an interface unit for controlling the settings, adjusting nodes (selecting a backlight source, a light filter, as well as changing the parameters of the selected backlight source within the required limits, is performed at the program level using the interface unit, i.e. how to get a picture at the output of the spectral camera for further research in a computer, the corresponding video source is automatically configured taking into account the properties of the protective th label or unknown properties of its simulator) and switching the outputs of the video sources, the inputs of which are connected respectively the outputs of the video sources, and its output - to one of the inputs of the system unit of the computer, and at least one of the video sources is made in the form of a spectral a camera having a case with a viewing window, inside of which there are placed the illumination sources direct in the ultraviolet, infrared and individual parts of the visible wavelength range and oblique broadband and in the specified areas of the visible a wavelength range, a video camera, as well as a switchable filter block with an autonomous drive, while the radiation sources and a switchable filter block are configured to interface control the settings and operating modes of the backlight sources and select a filter corresponding to a given backlight range and are connected to control circuits of the adjustment and adjustment nodes, as well as the video camera output to the corresponding input of the interface unit.

To study color images using a video system, at least one of the video sources is made in the form of a color camera containing a housing with a viewing window, a color image video camera and backlight sources of direct and oblique white light, made with the ability to interface control the settings and adjustment of operating modes illumination sources, and their control circuit nodes of the settings and adjustment of operating modes, as well as the output of the camera are connected to the corresponding input of the interface unit.

To study images in general terms using a video system, at least one of the video sources is made in the form of a survey camera containing a housing with a viewing window, inside which a black-and-white image video camera and direct infrared and white light sources made with the interface control settings and modes of operation, and their control circuit and the output of the camera are connected to the corresponding input of the interface unit.

For research using a video complex of magnetic marks, at least one of the video sources contains a housing with a viewing window, inside which a magneto-optical camera is connected and configured to interface, connected to the control circuits of its settings and adjustment nodes, as well as its output to the corresponding input of the interface block.

In necessary cases, for the study of objects in transmitted light, the video complex is equipped with an additional translucent table containing a body with a light-scattering window and a reflector and emitters placed inside the body in the infrared and visible wavelength ranges.

In the current level of technology, no sources of information have been identified that would contain information about all the essential features of the claimed device. Similarly, in the current level of technology, no sources of information have been identified, a combination of information from which could constitute a combination of features of the device in the claimed claims. Therefore, the claimed device of the video complex, in our opinion, can be considered new and inventive.

Brief Description of the Drawings

The following description is illustrated by the accompanying drawings, in which the same elements are denoted by the same reference numerals.

Figure 1 presents the image of the spectral camera of the video complex in the context.

Figure 2 presents the image of the spectral camera of the video complex, top view.

Figure 3 presents a sectional image of a color camera of a video complex.

Figure 4 presents a sectional view of the surveillance camera of the video complex.

Figure 5 presents a sectional image of a video source with a magneto-optical camera.

Figure 6 presents a sectional view of an additional translucent stage of the video complex.

Figure 7 presents the image of the interface unit from the side of its input connectors for connecting video sources included in the video complex.

On Fig presents an image of the interface unit from the side of its output connector, connected to one of the ports of the system unit of the computer. The computer and its device are not shown on the attached graphic materials, since it is widely known, its ports for connecting peripheral devices are standard and no additional requirements are put forward for them.

Detailed Description of Embodiments

In the drawings, figures 1, 2, 3, 4, 5, 6, 7 and 8 show one of the possible options for a specific implementation of the claimed video system used for examining security features and from simulators, determining the authenticity and research of a wide class of documents, banknotes, securities and other materials in various spectral ranges of the visible, infrared and ultraviolet regions in reflected, oblique and transmitted light, as well as for the analysis of magnetic protective features.

According to the claimed claims, the video complex contains several video sources, each of which allows you to solve your specific problems at a high expert level, so they do not duplicate each other. Video sources are made with the possibility of automatic preliminary individual adjustment and adjustment of their main parameters to specific conditions for monitoring a security feature or, most importantly, its simulator.

In particular, Figures 1 and 2 show a spectral camera including a housing 1 having a viewing window 2. Inside the housing 1, a video camera 5, LED illumination sources 3, a switchable filter block with a drive 4 are fixed. Video camera 5, a switchable filter block 4 and the viewing window 2 is optically coupled. The LED illumination sources 3 and the switchable filter unit with the drive 4 are configured for interface control, for which, in the spectral camera of FIGS. 1 and 2, the output of the video camera 5 and the control circuit are connected using a cable with connector 5 to one of the inputs 26 of the interface unit to control the settings, adjustment and switching nodes of the outputs of the video sources 25, shown in Fig.7 and 8. Using the interface control unit, you configure and select the operating mode of the LED backlight 3, and that also the choice of one of the filters of the unit 4 corresponding to the specified examination conditions is selected. In this case, the 3 LED backlight sources provide direct backlight: ultraviolet (2 spectra), blue, blue-green, yellow-green, orange, red, infrared and oblique: broadband, blue green and blue. There are basic and additional highlights, as well as any combination of them. The choice for a specific backlight filter 4 and aperture value is carried out using the interface unit to control the settings, adjustment and switching nodes of the outputs of the video sources 25.

Figure 3 shows a sectional view of a color camera. It contains a housing 7 with a viewing window 8. Inside the housing 7 there is a color video camera 9 and LED backlight 10. The video camera 9, LED backlight 10 and a viewing window 8 are optically connected. LED sources 10 provide white backlights: direct and oblique and are configured to interface control settings and their operating modes, for which the output of the color image video camera 9 and the backlight control circuit 10 through a cable with connector 11 are connected to the input 27 of the interface unit to control the settings , adjusting and switching outputs of video sources 25.

Figure 4 shows a video source in the form of a survey camera, which shows the housing 12 with the viewing window 13. Inside the housing 12 are fixed a video camera 14 in black and white, as well as backlight 15 for direct infrared and white light, made with the possibility of interface control settings and modes their work. The video camera 14, the backlight 15 and the viewing window 13 are optically connected. At the same time, the output of the video camera 14, as well as the control circuit of the backlight sources 15 are connected via a cable with a connector 16 to one of the inputs 29 of the interface unit for controlling settings and operating modes, as well as switching the outputs of the video sources 25.

Figure 5 shows a video source for the study of magnetic marks in the context. The video source of FIG. 5 comprises a housing 17 with a viewing window 18 and a magneto-optical camera 19 located inside the housing. The viewing window 18 and the magneto-optical camera 19 are optically interconnected, the magneto-optical camera 19 itself being configured to interface control it, and its control and settings control circuit , as well as the output connected using a cable with connector 20 to one of the inputs 28 of the interface control unit and switching outputs of the video sources 25.

To control the clearance of the investigated documents and other materials, the video complex includes an additional translucent table, shown in Fig.6. The transparent table of FIG. 6 contains a housing 21, inside which there are emitters in the infrared and visible wavelength ranges 24, a reflector 23 and a diffuser window 22.

Figures 7 and 8 show an interface unit for controlling the settings, adjustment and switching nodes of the outputs of the video sources. It has a housing 25, input connectors 26, 27, 28, and 29 for connecting the video sources shown in figures 1, 2, 3, 4 and 5, and an output connector 30 for connecting it to one of the ports of the computer system unit. The interface unit, using its own circuit with software, converts the high-level commands received from the computer into low-level control signals corresponding to these commands, under the influence of which tuning and adjustment operations are performed in the involved video source, as well as connecting its output to the system port a unit for transmitting, during research, an image of a security feature or its simulator. The research itself and the analysis of the obtained image are carried out at the software level in the computer without the participation of the interface unit in this process.

The video complex for determining the authenticity of securities and / or documents is a highly effective tool in the hands of an expert, therefore, its functioning is carried out with its direct participation.

Depending on the complexity of the task assigned to the examination, the expert determines the nature and scope of the research, as well as specific specialized video sources with which these studies should be conducted.

The video complex allows the possibility of work using video sources as one of them, or all or part of them in any sequence. Getting started with any video source includes placing a security and / or document under the viewing window, setting up the backlight sources, choosing their mode of operation, selecting the appropriate filter if necessary, and also receiving an image using a video camera for further research in order to determine the authenticity of the subject object. Since each of these steps significantly affects the results of research, and the possibilities of a person are not unlimited, the most complex actions, for example, setting up the backlight sources, choosing the mode of their operation, choosing a filter, etc. performed using computer technology. Therefore, the video sources are configured to interface control them. The choice of the interface itself in this case does not matter. Investigations are made on the object as a whole, as well as its specific parts.

Using a combination of video sources, an interface unit, a computer and an illumination table in any combination, the video complex allows you to:

- analyze various spectral and magnetic security features and their imitators of documents, banknotes, securities of any format; identify the structure of the material, typographic performance; reveal masked inscriptions and drawings;

- to quickly monitor the security features of documents by visual comparison of document fragments with reference samples from the database;

- identify changes to the original content by completing, cleaning, washing off, etching;

- analyze and compare prints of seals and stamps;

- carry out an ON-LINE transition between various types of control and information sources;

- in addition to the usual output mode of the controlled fragment, carry out comparison modes (subtraction mode, alternate blinking mode, comparison mode with a half-frame of the reference), accumulation / correction modes for detecting low-contrast and / or weakly luminescent labels;

- change the scale of the image displayed on the screen (the function of "electronic magnifier");

- measure distances, angles; explore the color profile of an arbitrary section, view the color histogram; change the brightness, contrast and carry out gamma correction of a fragment, use a variety of special filters to detect weakly expressed protective marks; combine the controlled fragment with the reference image;

- print and save expert opinions with images of investigated and reference fragments, a controlled document, the text of the conclusion, using their own templates;

- edit and replenish the database of banknote standards, various classes of securities (stocks, bills, bonds, savings certificates, certificates of deposit), traveller's checks, identity documents, contract documents issued in any country in the world; edit and replenish the accounting database of copies of these documents, maintain a registration card file;

- maintain a structured description of the protection of the document in the sections "General Description", "Protection", "Methods of forgery", "Recommended Control" at the level of the document, page and fragment; supports keyword dictionary.

Industrial applicability

The present invention may be applicable in the development of video systems for authenticating securities and / or documents. For a specialist, it is obvious that this invention sufficiently reveals the possibilities of creating a video complex that allows using it to verify the authenticity of securities and / or documents, controlling their presence or absence of a large group of various security features. The presence of a video complex provides an opportunity to significantly improve the quality of ongoing research and reduce the cost of carrying out work related to authentication. Any such and other modifications, the features of which are equivalent to those of the attached claims, should be considered within the scope of the present invention.

Claims (5)

1. A video complex for determining the authenticity of securities and / or documents, including a set of video sources for conducting research on securities and / or documents in the specified spectral ranges of visible, infrared and ultraviolet regions in reflected, oblique and transmitted light and a computer for processing and analysis image at the output of one of the video sources, characterized in that it contains an interface unit for controlling the settings, adjustment and switching nodes of the outputs of the video sources, to the inputs to the outputs of the video sources are connected respectively, and its output is to one of the ports of the computer system unit, and at least one of the video sources is made in the form of a spectral camera having a case with a viewing window, inside which the backlight sources are located, direct in ultraviolet, infrared and separate sections of the visible range of wavelengths and oblique broadband and in specified sections of the visible range of wavelengths, a video camera, as well as a block of switched light filters with a drive, while the source and the radiation and the switchable filter block are configured to interface control the settings and modes of operation of the backlight sources and select the filter corresponding to a given backlight range and are connected by the control circuits of the adjustment and adjustment nodes, as well as the video camera output to the corresponding input of the interface unit. 2. The video complex according to claim 1, characterized in that at least one of the video sources is made in the form of a color camera having a housing with a viewing window, inside which there is a color video camera and backlight sources of direct and oblique white light, made with the possibility interface control of the nodes of setting and adjusting the operating modes of the backlight sources, and their control circuit of nodes of setting and adjusting the operating modes, as well as the output of the video camera, are connected to the corresponding input of the interface block ok. 3. The video complex according to claim 1, characterized in that at least one of the video sources is made in the form of a survey camera, comprising a housing with a viewing window, inside which there is a black-and-white image video camera and direct infrared and white light sources made with the possibility of interface control of settings and modes of their operation, and their control circuit and the output of the camera are connected to the corresponding input of the interface unit. 4. The video complex according to claim 1, characterized in that at least one of the video sources contains a housing with a viewing window, inside of which a magneto-optical camera is connected and configured to interface, connected to the control circuits of its settings and adjustment nodes, as well as output to the corresponding input of the interface unit. 5. The video complex according to claim 1, characterized in that it is equipped with an additional translucent table, comprising a housing with a diffusing window and a reflector and emitters located inside the housing in the infrared and visible wavelength ranges.

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