JPS6219986A - Seal impression book reading device - Google Patents

Abstract

PURPOSE:To facilitate extraction of seal print and simplify and speed up registration and collation by separating a seal impression printed in cinnabar red from printed frame etc. by signals obtained by optical scanning using a contact color sensor in which color filters are arranged on a CCD. CONSTITUTION:The reading device consists of a contact color sensor section 1, a driving section 31, a driver that makes the sensor scan, an amplifier circuit of sensor output, a circuit 32 that makes binary coding of amplified output signals, a line buffer section 33 that stores binary coded electric signals, an interface controlling section 35 and a CPU 3. A fluorescent lamp 6 for giving light on a seal impression book 90, a reflected light condensing rod lens array 2, a CCD chip 5 mounted on a ceramic substrate 3 and color filters Y, G, C are arranged successively in the contact color sensor section 1. A display section unit consisting of color filters 4 and a cover glass 7 displays registered print of seals in red and a print of seal to be collated in green and superposes them. Collation can be made easily by the size of area of superposed parts that become yellow.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a seal book reading device having a color sensor provided with a color filter for optically reading seal book information.

[Technical background of the invention and its problems] Conventionally, when verifying seals, the impression of a seal affixed in vermilion on a seal register is detected by optical scanning, and the detected seal impression is used to check whether the seal has already been registered or not. The seal was verified by comparing it with the registered seal imprint. A method of extracting this seal imprint is, for example, by displaying a cursor on a CRT displaying the seal imprint, and then moving the cursor to the displayed seal imprint and extracting it. Conventionally, the imprint of a seal affixed to a seal book is often stamped within a frame printed in black on the seal book, or on or near the name printed in black on the seal book.

Therefore, in order to extract only the seal impression, it was necessary to remove the frame or name printed in the vicinity.

- [Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and an object thereof is, for example, to provide a seal book reading device that can extract only the impression of a seal affixed on a seal book.

[Summary of the Invention] The outline of the present invention for achieving the above object is to optically scan =FR on a seal imprint or a stamp, and read the seal book information by receiving the reflected light. The present invention is characterized in that an incident path through which the reflected light from the seal book enters the light-receiving surface is provided with a filter that distinguishes at least the reflected light of the wavelength of the seal imprint color from the reflected light of other wavelengths and guides it to the light-receiving surface.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. - First, the outline of a seal verification device including a seal imprint extraction device according to the present invention will be explained with reference to FIG. 4.

This seal book reading device can be used, for example, at banks, etc. for ordinary deposits,
This book is mainly used to register the signature and seal impressions of time deposits or current deposits, and to compare the impressions stamped on the application form with the already registered impressions when withdrawing deposits, etc. It is.

In FIG. 4, main body control device 41. The storage device 42 and the journal block 1 nonta 43 are, for example, a bank's front desk 1'.
- A reading device 44 installed in the back. Input device (keyboard) 452 display unit 46 and image printer 4
A terminal consisting of 7'lII! A plurality of devices 48 are installed at the front desk of the bank, and the terminal processing device 48 and the main body control device 41 are connected online.

The reading device 44 in the terminal processing device 48, as shown in the block diagram in FIG. A driving section 31 for driving, a driver for electrically scanning the sensor of the contact color sensor section 1, an amplifying circuit for the output of this sensor, a circuit section 32 for binarizing the amplified output signal, and a circuit section 32 for binarizing the amplified output signal. It consists of a line buffer section 33 for storing the digitalized electrical signal, an interface control section 35 for transmitting the binarized electrical signal to the terminal processing device 48, and a CPU-3 for controlling the reading device 44. There is.

As shown in FIG. 1, the adhesion force sensor section 1 includes a fluorescent lamp 6 for applying light onto the seal register 90 (the information surface is on the lower side in the figure) to obtain reflected light, and a rod for collecting this reflected light. A lens array 2, a ceramic substrate 3, a CCD chip 5 mounted on this ceramic substrate 3, and this CCD chip 5
It consists of a color filter 4 placed on top and a cover glass 7.

FIG. 2(a) is an external perspective view of the contact color senna section 1 shown in FIG. 1. In the same figure, a rod lens array 2 is provided below the seal book indicated by 90, and below this is a CCD chip 5 with a nine-color filter 4 (color filter 23° 24.25> provided on the light receiving surface). A ceramic substrate 3 is provided on the lower surface of the .

The color filter arrangement of the contact color sensor section 1 is shown in FIG.
As shown in the schematic plan view in b), the CCD chip 5
Color filter Y (yellow) on top.

G (green) and C (cyan) are arranged in sequence.

As described above, this color filter 4 is composed of three color filters 23, 24, and 25, each of which has a characteristic of being able to mainly transmit wavelengths of specific colors. For example, the color filter 23 mainly transmits yellow light and blocks colors close to yellow based on the yellow wavelength. That is, for example, the component of light that passes through this yellow color filter 23 is cyan.

Since the green component is extremely low, if only the output from the yellow filter 23 is output and processed, an image (image information 1) with yellow as the main tone will be created.

At this time, if a limit value is set and signal levels below a certain value are cut, only the necessary information can be extracted. Furthermore, by combining the outputs of the three color filters and outputting the combined result on the CRT, all of the seal book information can be reproduced.

The keyboard 45 includes a numeric keypad 45A for inputting an account number as a search code, as shown in the plan view of FIG. The display mode selection key 5B for selecting the display mode, the cursor movement key 45C for moving the cursor for seal imprint extraction display, the cursor movement mode selection key 45D for selecting the cursor movement mode, and the polymerization rate etc. to be described later. t'bell prohibition key 4 for prohibiting calculations
5F, a seal imprint rotation key 45F for rotating the seal imprint, and a form format selection key 45G for selecting the 7 car mat of the seal register or application form. The display unit 46 is for displaying images read by the reading device 44, images already registered in the marking device 42, information keyed in from the keyboard 45, and the like. Furthermore, this display unit 46 displays the registered seal imprint in red, for example, and displays the to-be-verified seal imprint in green, and superimposes these, and displays the size of the overlapping area that is yellow for easy visual judgment of the verification. In addition to displaying the polymerization rate, density ratio, etc. numerically, the image printer 47 prints the image displayed on the display unit 46 using a thermal printer or a laser printer method. It is.

The storage device 42 is composed of, for example, an optical disk that stores the seal book or seal imprint, and a magnetic disk that stores search codes and the like. The journal printer 43 registers the seal impression, etc.

It records and issues verifications, changes, etc. in correspondence with account numbers.

The main body control device 41 inputs the output from the reading device 44 or the keyboard 45 in the terminal processing device 48 online, controls the registration or reading into the storage H 42, and records the impression of the seal on the seal book or paper. It controls the extraction operation, or outputs the read or extracted information to the terminal processing device 48.

Next, details of this seal book reading device will be explained with reference to the block diagram shown in FIG. At d3 in FIG. 5, the display unit 46 in the terminal processing device 48 has a CPU-
1. Color CRT (display device) 50, display drive section 51
It consists of various interfaces and various memories. The CPU-1 controls the display unit 46, and an image interface 52. connected to the reading device 4 is connected to the CPU path line. A keyboard interface 13 connected to the keyboard 45. Program memory 14 that stores execution procedures. Vertical orientation of various forms (seal register or application form).

Formats 1 to 16. Store formats such as width 1 size and position of seal affixed. The display driving section 5
1 and a main body interface 55 connected to the main body control device 41.

In addition to the display drive unit 51, the image pass line through which the image from the reading device 44 is inputted via the image interface 52 temporarily stores the image read by the reading device 44, and then A pattern menu 57 for outputting to the main body control device 1 and the main body interface 55 are connected.

Note that details of the display driving section 51 will be described later.

Next, the main body control device 41 will be explained.

This main body control device 41 is connected to the display unit 46 via a serial transmission line 58. This main body control device 41 includes a CPU-2, a program memory 60
．． Dynamic Memory Access (DMA)61. 1st. Second seal impression memory 62.63. Seal impression extraction control section 64
．． It consists of an address control section 65 and various interfaces. The display unit interface 66 is
Images or various information are outputted via the serial transmission line 58. A general purpose interface bus (GPIB) 57 is connected to an optical disk 7 for recording a seal book and seal imprint in the storage Vc storage 42.
This is an interface connected to 1. In addition, a magnetic disk (MD) 69 and a floppy disk (FD) 70 for storing search codes and image storage addresses in the storage device @42 are connected to the main body control device/11 via an MD/FD interface 68. It is connected.

Further, the CPU-2 is responsible for controlling the main body control device 41. Said 1st. Second seal impression memory 62.
63. The seal imprint extraction control section 64 and the address control section 65 are
It is used for extracting seal impressions from a seal register or paper when registering or verifying seal impressions. The image read by the reading device 44 and temporarily stored in the pattern memory 57 is input to the first seal impression memory 62 via the main body interface 55 , the serial transmission line 58 and the display unit interface 66 . Further, a part of the image recorded in the first seal impression memory 62 is extracted and stored in the second seal impression memory 63. The seal imprint extraction Ll
The control unit 64 receives the coordinates and size of the seal imprint area specified by the cursor key of the keyboard 45 from among the images displayed on the color CRT 50 through the CPU-2, and based on the information on the coordinates and size. to control the address control section 65. The address control unit 65
The read address of the stamp memory 62 and the write address to the second stamp memory 63 are controlled, and the extracted stamp image is recorded in the second stamp memory 63.

Next, details of the display driving section 51 will be explained with reference to FIG. 6. FIG. 6 is a block diagram showing the configuration of the display driving section 51. As shown in FIG. In the figure, a reference seal impression frame memory 81 is a frame memory that stores registered seal impressions read out from the optical disc 71. The stamp impression frame memory 80 to be verified is read by the reading device 44 and sent to the main body control device 4.
This is a frame memory that stores the verified seal impression extracted in step 1. This reference seal impression frame memory 81. Parallel-to-serial converters (P/S converters) 73 and 74 are arranged downstream of each of the seal imprint frame memories 80 to be verified. Roughly speaking, a selection display driver 75 is arranged between the P/S converters 73, 74 and the color CRT 50, and is configured to selectively display one of the two images or display them in a superimposed manner. . The AND total bit counting circuit 76 is a circuit that inputs the binarized data from both the frame memories 71 and 80 and calculates the total number of bits C of overlapping data "1" at the same address. The verification target seal impression, Satoshi bit measuring circuit 77 inputs the image data from the verification target seal impression frame memory 8Q, and outputs the data "1".
This is a circuit that calculates the total number of pips 1 to B. The reference seal imprint total bit calculation circuit 78 includes the reference shading frame memory 8.
This is a circuit that inputs image data starting from 1 and calculates the total number of bits A of data ``1''. Note that each of the calculation circuits 76, 77, and 78 described above can be configured as a counter.

The total number of pits C, B, and A, which are output from each calculation circuit 76, 77, and 78, are respectively input to the CPU-1, and the CPU-1 uses this data to calculate the superposition of the reference seal imprint and the to-be-verified seal imprint. The ratio and density ratio are calculated.

Here, an example of a calculation method for the polymerization rate X calculated by the CPU-1 is shown below.
Using, X= (C/A+C/B)X (1/2)X100...
...(1) becomes. In addition, the density ratio Y calculated by CPU-1
An example of the calculation method is as follows: When A>B, Y= (B/A>xlooo...(2
) When A<B Y-(A/B)Xl 00...(
3). Further, a character display controller 79, which is a character display control means, receives the calculation results of the polymerization rate and density ratio from the CPU-'I, and is driven to display these calculation results on the color CRT 50. It has become.

Here, the character display controller 1 to roller 79 display the polymerization rate and density ratio as percent 1 to percent value on the color CRT 50 together with a superimposed image of both seal impressions.

Further, the cursor frame display driving section 72 displays a cursor frame on the color CRT 50 when the seal book or application form is displayed on the color CRT 50. The cursor frame display driving section 72 selects a cursor movement mode by pressing the cursor movement mode selection key 45D, and then selects c by operating the cursor movement key 45C.
Based on the control of pu-1, the cursor frame can be enlarged, reduced, and moved vertically and horizontally. Also, by selecting the form selection key 45G on the keyboard 45, the corresponding form format or the form form A is selected.
- The CPU-1 drives and controls the cursor frame display drive unit 72 based on this document format, and moves it to a position that encompasses the seal imprint area of the seal book or application form displayed on the color CRT 50. The cursor frame is set automatically. In this sense, the CPU-1 serves as display control means for controlling the cursor frame display drive section.

The operation of the device configured as above will be explained.

<IQ': Regarding the registration effect of the seal impression> First, the effect when registering the reference seal impression will be explained. For example, the 8th
A description will be given of the registration of the ordinary deposit seal register 90 shown in the figure and the seal imprint 91 affixed to this seal register 90. First, input the account number by operating the numeric keypad 45A, and then press the "registration" mode of the display mode selection keys 45B. Thereafter, this seal booklet 90 is set in the reading device 44 shown in FIG. 4, and the image information is read by optical scanning. At this time, as shown in the principle of the color filter in FIG. 2(b), a color filter (yellow) 23 that transmits a specific color or a color close to the specific color, for example, a color filter (yellow) that easily transmits a yellowish color. ．． Similarly, the light that has passed through the color filter (green) 24 and color filter (cyan) 25 is spectrally selected by each color filter, and the amount of each color that can pass through each filter is increased or decreased by that filter, and is less than a certain set value. By ignoring the amount of light,
Colored f'1'' is obtained as a binarized electrical signal of rOJ.

This image is then sent to the reference shadow frame memory 81 and pattern memory 57 in the display drive section 51 via the image interface 52.

Then, the contents of the reference shading frame memory 81 are changed to color C.
The pattern memory 57 is displayed on the RT 50, and the contents of the pattern memory 57 are stored in the first imprint memory 62 in the main body control section 41 via the main body interface 55.degree. serial transmission line 582 and the display unit interface 66.

Here, when the number corresponding to the ordinary deposit seal register 90 is pressed next among the form format selection keys 45G on the keyboard 45, the CPU-1 selects the corresponding form format 4-mat from the form format memory 56. reading,
The cursor frame display driving section 72 is driven and controlled based on this form Ft-Matsu1~. That is, the CPU-1 determines the color C based on the vertical and horizontal sizes of the ordinary deposit stamp register 90 and the stamping position.
Drive control is performed to display a cursor frame at a position that encompasses the seal imprint area of the seal book image displayed on the RT 50.

Note that the coordinate position of the seal booklet displayed on the color CRT 50 with respect to the screen is relative to the seal imprint area of the seal booklet 90 displayed on the screen from which the vermillion portion has been extracted in advance by reading with the reading device 44. , the cursor frame can be set accurately by the above operation. Therefore, even if the seal is affixed outside the stamp area on the seal W register 90, there is no need to move the cursor frame thereafter. Furthermore, since the image is filtered by a color filter, it is possible to capture the seal impression without being affected by the frame. If the cursor frame does not correctly encompass the seal imprint area, select the specified movement mode by pressing the cursor movement mode selection key/15D (or press one of the cursor movement keys 45C). A cursor is set in the area that includes the selected seal impression 91.

The coordinates and size of the cursor thus set are input to the CPU-2 in the main body control device 41 via the serial transmission line 58, and the CPU-2 outputs this information to the seal imprint extraction control section 24. The seal imprint extraction control unit 64 drives and controls the address control unit 65 based on the coordinates and size of the cursor, and reads out only the image corresponding to the area within the carnage out of the stored contents of the first seal imprint memory 62. It is stored in the second seal imprint memory 63. When this seal imprint extraction operation is completed, the image in the first imprint memory 62, that is, the image of the imprint WI90, and the image in the second imprint memory 63, that is, the image of the imprint 91, are recorded on the optical disk 71 via the GPIB 67. .

Furthermore, the address information recorded on the optical disk 71 and the account number input from the keyboard 45 are recorded as a search address and a search code in the magnetic disk 69 or floppy disk 70 as a search table.

<Regarding the seal imprint verification function> Next, the comparison between the seal imprint registered as described above and the seal imprint stamped on the application form at the time of withdrawal from the savings account will be explained. First, enter the 11 account number on the keyboard 45
Operate the upper keypad 45A to input, and then press the ``1 Verification'' mode key.

Then, the CPU-1 of the terminal processing device 48 side transmits this account number to the main body control device 41 side, and the CPU-2 of the main body taII device 1 uses the corresponding search code in the magnetic disk 69 or floppy disk 70. is read out. Then, the CPLI-2 reads the corresponding reference seal imprint from the optical disk 71 based on the search address in this search code, and temporarily stores it in the second seal imprint memory 63. After that, this second seal impression memory 63
The seal imprint within is transmitted to the terminal processing device 48 side via the serial transmission line 58 and stored in the reference seal imprint frame memory 41 within the display drive unit 51.

On the other hand, after completing the input operation on the keyboard 45,
4. Application form reading device. /I, the application form is optically scanned, converted into a color filter, and further converted into a binarized electric signal.

This paper image is transferred to the main body control device 41 through the same route as when registering the seal imprint described above, and is displayed on the color C column 50. Then, when the form selection key 45G corresponding to the footmat of this application form is pressed in the same way as at the time of registration, the CPU-1 selects the form form selection key 45G corresponding to the footmat of this application form.
The corresponding form format is read out from 6, and the cursor frame display driving section 72 is driven and controlled based on this form format. As a result, the reading device 44
A cursor frame is set for the vermilion part that has been electrically converted and extracted. This speed is determined based on the coordinates and size of the cursor frame in the same way as the effect at the time of registration described above.
．． Second seal impression memory 62, 63. Seal imprint extraction control section 64.
The address control unit 65 extracts the seal imprint within the cursor frame.

Then, this seal imprint is stored in the verified seal imprint frame memory 80 in the display drive circuit 51. Then, the images in the reference shadow frame memory 81 and the reference seal imprint frame memory 80 are superimposed and displayed on the color CRT 50 via the P/S converters 73 and 74 and the selection display driver 75. At this time, by displaying the reference seal imprint in red, for example, and displaying the verified seal imprint in green, the mutually overlapping portions are displayed in yellow, making it easier to visually judge the degree of verification.

Furthermore, in the apparatus of this embodiment, the polymerization rate and density ratio are calculated from the reference seal impression and the reference seal impression and are displayed on the color CRT 50. That is, the reference seal imprint and the verified seal imprint are input to the AND total pixel calculation circuit 76 for each same address, and the total number of bits C where the information on the same pixel is both "1" is calculated. Further, the comparison target seal imprint total bit calculation circuit 77 and the reference seal imprint total bit calculation circuit 78 are as follows:
The total number of bits B and A of data "1" on the verified seal impression and reference seal impression are counted, respectively. These total bit numbers A, B, and C are input to CPU-1, and CP
U-1 is the above formula (1) and the above formula (2) or formula (3)
Execute to determine the polymerization rate X and density ratio Y. The polymerization rate X and density ratio Y are then output to the character display controller 79.

Then, the character display controller 79 displays the polymerization rate X and the density ratio Y as percentage values on the color CRT 50, respectively. An example of this display is shown in FIG. In Figure 9, the value 60% indicates the polymerization rate;
The numerical value in % indicates the density ratio.

In this way, in the device of this embodiment, when registering a reference seal impression and when comparing a seal impression to be verified, a signal obtained by optical scanning using a contact color sensor in which color filters are arranged on a CCD is obtained. Not only can the vermilion seal imprint be extracted separately from the printed frame, etc., but also the cursor frame can be set accurately and quickly in the seal imprint area even if the formats of documents such as seal registers and application forms are different. can do.

Note that the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the gist of the present invention.

[Effects of the Invention] As detailed above, according to the present invention, even if the position where the seal is affixed is outside the frame J: or the format is different, the influence of the printing of the frame etc. without receiving
In addition, it is possible to provide a seal book reading device that is easy to extract seal impressions without being affected by noise, which facilitates extraction of seal impressions when registering reference seal impressions and when comparing seal impressions to be verified, and improves registration and verification work. Simplification and speed can be achieved.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the adhesion force sensor unit according to the present invention, FIG. 2(a) is a perspective view showing the installed state of color filters,
Figure (b) is an explanatory diagram showing the color filter arrangement state, Figure 3 is a block diagram of the reading device, Figure 4 is an external perspective view of the seal book reading device of the present invention, and Figure 5 is the seal book reading device of the present invention. 6 is a block diagram of the display drive unit, FIG. 7 is a front view showing an example of a keyboard, FIG. 8 is a front view showing an example of a seal book, and FIG. 9 is a block diagram of a display drive section. FIG. 1...Seal imprint extraction means, 23.24, 25...Color filter, 44...Reading device, 90...Seal registration book. 9゜

Claims (3)

[Claims] (1) Optically scan the seal register with the stamp imprinted on it,
In an apparatus for reading seal book information by receiving the reflected light, the reflected light from the seal book enters the light-receiving surface in an incident path in which at least the reflected light of the wavelength of the seal imprint color is distinguished from the reflected light of other wavelengths, and the light-receiving surface A seal book reading device characterized by being provided with a filter that guides the user. (2) The seal book reading device according to claim 1, wherein the filter is constituted by a plurality of color filters that distinguish reflected light from the seal impression and reflected light other than the seal impression and guide them to the light receiving surface. (3) The color filter is composed of cyan, green, and yellow color filters.
The seal book reading device described in Section 1.