JPS5931104B2 - Seal verification device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seal stamp matching device for quickly and accurately matching a seal impression with the seal impressions of seven isles.

In the past, verification of seal impressions was performed manually.

This can be done by comparing the target seal impression and the original seal impression with the human eye, or
The most commonly used method is to stack the images on top of each other and move the top paper up and down to make a comparison using the afterimage of the eyes. In this case, the register is often in the form of a card with a registration seal stamped on it. Since the original ledger card stored according to the classification code of the object is retrieved and compared, the object is 1
If there are a large number of cases per day, it becomes a very time-consuming task. The present invention provides a seal stamp verification device that can easily perform verification by reading the impression of a seal using an image sensor, superimposing the image with corresponding seal data recorded in a file device (memory), and comparing the images.

As shown in FIG. 1, the seal verification device according to the present invention includes a reading device 1, a display device 2, and a file device 3. Note that the display device 2 includes a control circuit. The method of verification is to simultaneously display on the display device 2 the imprint of the target object inputted by the reading device 1 and the registered imprint read out from the file device 3, and to perform visual verification.

The control circuit controls the above display. There are various forms of objects, but many are in the form of individual sheets of paper, such as handprints, small incisions, and hands.

For bills, checks, etc., the existing magnetic ink character reader (MICR) as shown in Figure 2 is used.
A reading device that automatically feeds sheets one by one using a reader/saucer (reader/saucer) and reads the seal imprint is conceivable. In FIG. 2a, paper such as bills and checks are conveyed one by one from the hopper 4, and MICRQ characters (magnetic ink cross characters) are read by the magnetic head 5 to obtain the customer's code.

In FIG. 2a, image data is inputted by an image sensor 7 that scans the sheet being conveyed perpendicular to the conveyance direction.

From this image data, the video processing circuit 8 detects the seal imprint using the red of vermilion, and separates it from the background pattern. In FIG. 2b, image data is inputted from the image sensor 7 in a stationary state before the paper is transferred from the hopper 14, so the image sensor 6 may be of a two-dimensional television scanning type.

Again, only the seal impression pattern is extracted as image data by the video processing circuit 8. MICR reader soda can be used for bills and checks because they contain MICR characters, but for ordinary paper, an image sensor is used instead of a magnetic head to optically read and recognize the characters and generate the code. Alternatively, you can record the customer code in a barcode and read it with a barcode reader.

Furthermore, depending on the type of paper, it may be possible to input the image by manually placing the paper under a two-dimensional television scanning image sensor instead of using an automatic feed. It is also conceivable that the customer code is input using the keyboard of the display device 2 without being read automatically. In the manner described above, the seal impression data extracted from the paper is sent to the display device 2 as digital image data. On the other hand, the registration mark pattern is read out from the file device 3 using a customer code that is automatically read by a reader or manually input, and displayed on the display device 2.

The file device 2 is a file that stores digital data such as a disk, or a file that stores microfilm or a card containing original data. The latter includes a mechanical device that searches the card or film, a sensor that reads this data, and a circuit that digitizes the read data. The display device 2 displays both the input detected image data and the registered image data read out from the file for visual comparison.

This display device 2 displays digital data, and can display black and white binary data, grayscale data, or color data. A specific configuration of this display device 2 is shown in FIG. Digital data (image data) input via the interface 9 is stored in a refresh memory 10.

This is displayed on the readout monitor 12 by the display control circuit 11. 13 is a keyboard for the operator;
Reference numeral 4 denotes a rotational alignment circuit for rotating and shifting one seal imprint to align the direction and position with the other imprint.

The method for confirming the display is shown in FIG. 4, where FIG. 4a shows the monitor screen and FIG. 4b shows the contents of the refresh memory.

As shown in Figure 4a, two seal impressions are displayed side by side on the monitor screen. In Fig. 4b, the refresh memory has two screens 15 and 16, and the data on the left is transferred to the screen 15.
The data on the right is input to the screen 16 and displayed in a superimposed manner. There is also a method of dividing the screen into two as shown in FIG. 4c and inputting data separately on each screen 15 and 16. However, the methods shown in FIG. 4 are not included in this invention. The method of rotation and shifting will be described later, but by rotating and shifting one side, compare and confirm the direction, vertical position, etc. with the other side.

As image data in the refresh memory 10, binary data or data having density levels is used.

FIG. 5 shows an embodiment of the invention in which two seal impressions are displayed superimposed.

In this case, as shown in Fig. 5b, you can put the data into another refresh memory and display the two refresh memories alternately (flicker display), or the area 17 where there is data in both is a white envelope only on one side. There is a method of displaying locations 18 and 19 in colors such as blue and red. For this purpose, it is necessary to accurately match the centers and directions and overlap them. Due to the need to avoid such problems, means for direction and positioning have been devised. As for direction/alignment methods, automatic methods and manual methods can be considered. The manual method has left, right, up and down shift keys, and left and right rotation keys, and while the keys are pressed, the data moves little by little and is overlapped.

This process is performed by the coordinate transformation processor 2 having the configuration shown in Figure 6.
Do it with 1. FIG. 7 is a principle diagram showing the amount and direction of movement. The first memory 20 records x-y coordinate data, which is shifted by Δx and Δy and rotated by θ by the coordinate transformation processor 21 and then stored in the second memory 22. If you want to move little by little with a key, you can convert it little by little while the key is pressed, store it in different memories one after another, and display it. , it is necessary to find the angle difference. As described above, according to the present invention, a registered seal imprint can be easily extracted from a file, and by displaying the registered seal imprint in an overlapping manner with the input seal imprint, a human can compare and verify, thereby enabling high-speed verification. File management is also easy.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the seal verification device according to the present invention, FIG. 2 is a block diagram of the reading device in FIG. 1, FIG. 3 is a block diagram of the display device in FIG. 1, and FIG. Figure 5 is an explanatory diagram showing a method of displaying registration and verification seal impressions for visual verification; Figure 5 is an explanatory diagram showing when they are displayed in an overlapping manner;
The figure is a block diagram showing a processor for moving and rotating the seal impression, and FIG. 7 is an explanatory diagram for explaining the movement and rotation of the seal impression. In the figure, 1 is a reading device, 2 is a display device, 3 is a file device, 4 is a hopper, 5 is a magnetic head, 6 is an image sensor, 7 is a stacker, 8 is a video processing circuit, 9 is an interface, and 10 is a Refresh memory, 11 is a display control circuit, 12 is a monitor 13 is a keyboard, 14 is a rotation alignment circuit, 15 is a refresh memory for registration stamps, 16
is the refresh memory for the verification mark, 17 is the overlapping part, 18 is the part with only the registration mark, 19 is the part with only the verification mark,
20 is a first memory, 21 is a coordinate transformation processor, 22
is the second memory.

Claims (1)

[Scope of Claims] 1. A seal verification device that compares a seal imprint affixed on a sheet of paper with a registered seal imprint, comprising a reading means for detecting the seal imprint on the sheet together with code data, and a file means for storing the registered seal imprint. , comprising display means for displaying the detected seal impression and the registered seal impression according to the code data, and the display means has a rotational position where one of the two displayed seal impressions is rotated or moved to change its position. a matching means;
A seal verification device characterized by comprising a display control circuit that controls the above-mentioned two seal impressions to be displayed in an overlapping manner and displays them simultaneously or temporally staggered. 2. The display control circuit of the display means is provided with a means for color-coding overlapping parts and non-overlapping parts of both seal impressions that are overlapped and displayed at the same time using different colors.
Seal verification device as described in section.