JPH01248287A - Sheet for character recognition and character recognition device using recording information of relevant sheet - Google Patents

Abstract

PURPOSE:To enable the operator of the title device to certainly recognize the erroneous transmission of a sheet for character recognition (OCR sheet) as an error by respectively printing sheet identification marks on both surface and rear of the sheet. CONSTITUTION:OCR sheet identification marks 101 and 101' are respectively printed on both surface and rear of an OCR sheet 14. The OCR sheet identification marks 101 and 101' are printed as inclination detection marks printed in the directions intersecting orthogonally with the scanning direction when, for example, the direction shown by the arrow L is the scanning direction on both surface and rear of the OCR sheet 14, but have shapes similar to those of conventional examples of inclination detection marks. Therefore, the OCR sheet can be distinguished surely from a general document. Thus character recognition can be performed certainly on the optical sheet for character recognition and, at the same time, when the sheet is overturned, the sheet can be detected immediately as an error.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a character recognition sheet on which front and back information or type is recorded, for example, and a character recognition device using the recorded information on the sheet.

[Prior Art] Conventionally, in this type of device, an image signal of a document transmitted from a remote location via a communication line is recorded on an optical character recognition sheet (hereinafter referred to as "rOcR sheet"). The recorded information, that is, the characters, are recognized.

Therefore, in FIG. 0, which describes an example of a conventional character recognition device using FIG. 4, a character recognition device 51 is controlled by an MPU 52 consisting of a microprocessor, etc. Programs and the like are stored in the ROM 53, and a work area for the MPU 52 is provided in the RAM 4. Further, during data communication, image data based on an OCR sheet (hereinafter referred to as "received data") received from the communication processing unit 56 is temporarily stored in the image memory 55, and is usually stored at the leading edge of the OCR sheet as described later. An OCR sheet identification mark is printed, and this is identified by an OCR sheet identification section 57. This OC
When the R sheet identifying section 57 determines that the received data is image data based on an OCR sheet, a tilt detecting section 58 detects the tilt of the OCR sheet from the received data. This is a necessary process when recognizing characters from received data. Based on the inclination of the OCR sheet determined by the detection unit 58 in this way, the inclination correction unit 59 performs OCR.
The inclination of the sheet is corrected, and then the OCR recognition unit 60 accurately recognizes characters from the corrected image data of the OCR sheet.

Furthermore, the character recognition device 51 is equipped with an auxiliary storage section 61 for temporarily storing received data, various signals within the device flow through a system bus 62, and a line 63 is used for data communication with a partner terminal. conduct.

Next, the operation of the character recognition device 51 configured as described above and the method of character recognition will be explained with reference to FIG.

Conventionally, an OCR sheet identification mark 200 in the shape of a C character when viewed from the front side is printed on the leading edge of the OCR sheet 64 so that it can be distinguished from a general document, and image information 202 such as characters is printed from the next line. It is written.

When the character recognition device receives data from an external terminal, the received data received from the communication processing unit 56 via the line 63 is temporarily stored in the image memory and processed by the OCR.
The sheet identification unit 57 determines whether the sheet is an OCR sheet or a general document. This determination is made by identifying the OCR sheet identification mark 200, and as a result, the OCR
If it is determined that the sheet is a sheet, the tilt detection section 58 detects the tilt detection mark 201 in FIG.
Detect the inclination of the R sheet. Based on this result, the tilt correction section 59 corrects the image data in the image memory 55, and then the OCR recognition section 60 recognizes the characters written on the OCR sheet.

[Problem to be solved by the invention] However, in the above-mentioned conventional example, the transmitted original is
Since it is only possible to identify whether it is a CR sheet or a general document, if both the sending side and the receiving side determine that it is not an OCR sheet, it will be processed as a general document, even if the OCR sheet is sent or received upside down. Even if this is done, the disadvantage is that this error cannot be detected during data communication.

Therefore, the present invention has been made in view of the above-mentioned drawbacks of the conventional example, and its purpose is to prevent the information from being mistakenly processed as a general document when obtaining recorded information using an OCR sheet, for example. The object of the present invention is to provide a character recognition sheet that can be processed normally and a character recognition device that uses recorded information on the sheet.

Additionally, a character recognition sheet that allows the operator to reliably recognize incorrect transmission of an OCR sheet as an error, even when obtaining recorded information from an OCR sheet with an external communication processing device located in a remote location, for example. Another object of the present invention is to provide a character recognition device that uses recorded information on the sheet.

[Means for Solving the Problems] In order to solve the above-mentioned drawbacks and achieve the purpose, the character recognition sheet according to the present invention is a character recognition sheet in which a sheet identification mark indicating the type of sheet is printed on the recording surface of characters. The sheet is characterized in that the sheet identification mark is printed on each of the front and back sides of the sheet.

Further, the character recognition device includes an input means for inputting recorded information recorded on the character recognition sheet, a detection means for detecting the sheet identification mark from the recorded information input by the input means, and a detection means for detecting the sheet identification mark from the recorded information input by the input means. The apparatus is characterized by comprising a discriminating means for discriminating the sheet based on the detected sheet identification mark.

Alternatively, the character recognition sheet is characterized in that front and back identification marks are printed on each of the front and back sides.

The character recognition device also includes an input means for inputting recorded information recorded on the character recognition sheet, a first detection means for detecting the sheet identification mark from the recorded information input by the input means, and a first detection means for detecting the sheet identification mark from the recorded information input by the input means. a first discrimination means for discriminating sheets based on the sheet identification mark detected by the first detection means; and a second discrimination means for detecting the front and back discrimination marks from the recorded information based on the discrimination by the first discrimination means. a detection means, a second discrimination means for discriminating the front and back sides of the sheet based on the front and back identification marks detected by the second detection means, and outputting error information when the second discrimination means determines that the sheet is the back side. It is characterized by comprising an error output means.

Further, in the character recognition device, the input means includes an external input means for inputting recorded information recorded on the character recognition sheet from an external communication processing device, and the error output means inputs the error information. The communication processing apparatus is characterized in that it includes a notification means for notifying the communication processing device.

[Operation] According to the above configuration, if the sheet identification mark is printed on the front and back sides, it is easy to identify the sheet as a character recognition sheet.
Furthermore, by inputting the recorded information recorded on the character recognition sheet using the input means and detecting the printed sheet identification mark using the detecting means, the sheet can be discriminated by the discriminating means.

In addition, if you print a front and back identification mark to identify the front and back sides of the character recognition sheet, it will be easier to identify the front and back sides.
Using this sheet, when the sheet identification mark is detected (first detection means) and the sheet is discriminated (first discrimination means), the above-mentioned front and back identification marks are detected from the recorded information by the second detection means. , when the sheet is detected, the second determining means determines whether the sheet is front or back. When the front and back sides of the sheet are determined in this manner, if it is determined that the sheet is the back side, error information can be output. Here, if recorded information is input from an external communication processing device, error information can be notified.

[Embodiments] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic block diagram showing the configuration of an embodiment according to the present invention. In FIG. 1, 1 is a character recognition device of this embodiment, and 2 is an MPU that controls the entire device. 3 is a control program, an error processing program, and FIG. 3(a) which will be described later.

A ROM stores programs for performing processing according to the flowchart shown in FIG. 4B, and a RAM 4 is used as a work area for various programs and a temporary save area for data during error processing.

Reference numeral 5 denotes an image memory for temporarily storing image data (hereinafter referred to as "received data") based on an OCR sheet received by a communication processing unit 6, which will be described later; This is a communication processing unit that performs data communication. 7 identifies the predetermined OCR sheet identification mark and performs OCR
An OCR sheet identification section 8 is used to determine whether the sheet is a sheet or a general document, and 8 is a tilt detection section that detects the tilt of the OCR sheet based on a predetermined tilt detection mark based on received data.

Further, 9 is a tilt correction unit that corrects the tilt of the OCR sheet based on the tilt of the OCR sheet determined by the tilt detection unit 8, and lO is an OCR that recognizes characters from the image data of the OCR sheet corrected by the tilt correction unit 9. The recognition unit 11 is an auxiliary storage unit that temporarily stores image data recognized by the OCR recognition unit 10. Reference numeral 12 denotes a system bus for transmitting addresses, data, control signals, etc.; and 13 a front/back identification unit for identifying predetermined front/back identification marks printed on the front and back sides of the OCR sheet to identify the front and back sides of the OCR sheet.

Therefore, the front/back identification mark identified by the front/back identification unit 13 will be explained using FIGS. 2(a) and 2(b).

FIG. 2(a) is a diagram showing the front side of the OCR sheet according to this embodiment, and FIG. 2(b) is a diagram showing the back side of the OCR receipt according to this embodiment.

In FIGS. 2(a) and 2(b), 14 is an OCR sheet used in this embodiment, with 14a being the front surface and 14b being the back surface. 100, 100° is the OC of the conventional example shown in Figure 5.
The OCR sheet identification mark has the same shape as the R sheet identification mark, and is printed on the leading edge of the front surface 14a and the back surface 14b of the OCR sheet 14, and in this embodiment, it is also printed on the back surface 14b. The place has its characteristics. 101 and 101° are tilt detection marks printed on the front surface 14a and back surface 14b of the ○CR sheet 14 so as to be orthogonal to the scanning direction, for example, when the arrow direction is the scanning direction, and especially In terms of shape, it has the same shape as the conventional tilt detection mark shown in FIG.

Further, 102 obtained on the surface 14a is image information such as characters on the ocR sheet 14. And 103 is OCR
A front and back identification mark 104 is an OCR sheet identification mark 100 followed by three F characters arranged in a row to indicate the front side 14a of the sheet 14, while 104 is an OCR sheet identification mark 100' followed by b to indicate the back side 14b of the OCR sheet 14. It is a front and back identification mark with three letters lined up.

In this way, marks for each fm are printed on the OCR sheet used in this embodiment so that the front and back sides can be reliably identified.

Next, the method of receiving image data using the OCR sheet of this embodiment will be explained using FIGS. 3(a) and 3(b).

FIGS. 3(a) and 3(b) show character recognition device 1 according to this embodiment.
3 is a flowchart showing character recognition operation of FIG.

First, when a line with a communication processing device (not shown) is connected and data is received via the line 63 based on a normal communication method, the received data from the communication processing unit 6 is temporarily stored in a predetermined location in the image memory 5. (Step St, Step 52) Next, the image memory 5 is stored in the OCR identification section 7.
The received data stored in the OCR sheet is scanned and the OCR sheet identification mark is identified (step S3). As a result, O.C.
If the R sheet identification mark 100 or 100° cannot be identified, the received data is determined to be general Bunkichi, the received data stored in the image memory 5 is stored in the auxiliary storage unit 11, and the data is transmitted. The line of the original partner terminal is disconnected (step S4, step S5).

If the OCR sheet identification mark 100 or 100゛ can be identified, it is determined that the received data is image information based on the OCR sheet, and then the front and back identification section 13 detects the front and back identification marks from the received data. Then, it is determined whether the mark is the front/back identification mark 103 or the front/back identification mark 104, and it is determined whether the OCR sheet is on the front or back side (step S6 and step S7).

Here, if the front and back identification marks 103 are identified,
The tilt detection section 8 detects the tilt of the OCR sheet from the image data corresponding to the tilt detection mark 100 (step s8), and after detecting the tilt, the received data is corrected to image data in a normal state. The tilt correction unit 9 corrects the tilt of the received data based on the tilt detected by the tilt detection unit 8 (step s9), and the corrected image data of the OCR sheet is stored in the auxiliary storage unit 11.

Next, the OCR recognition unit IO scans the image data stored in the auxiliary storage unit 11, performs character recognition character by character based on the conventional method (step 5IO), and disconnects the line when finished (step 5ll).

On the other hand, if the front/back identification unit 13 identifies the front/back identification mark 104 in step S7, the line is disconnected at this point (step 512), the recognition process is interrupted, and the OCR sheet is connected to the sender's partner terminal. The back side information indicating that the OCR sheet is the back side is stored (step S13). Here, the MPU 2 transmits error information that the OCR sheet is the back side to the sending terminal, and disconnects the line (step 514).

As described above, according to this embodiment, identification marks are printed on the front and back sides of the OCR sheet in advance, and the marks can be identified by the receiving side, so that, for example, image data of the OCR sheet is transmitted with the back side However, the receiving side can detect this and detect that the OCR sheet was sent with the back side. This makes it possible to reliably identify a general document and an OCR sheet, and prevent data communication using an OCR sheet from being mistakenly processed as data communication using a general document. Furthermore, even if the OCR sheet is sent from the back side, the receiving side can immediately notify the sending side as an error in the received data, which is extremely effective in reducing costs by eliminating unnecessary communication.

Now, in this embodiment, marks that identify the front and back sides of the OCR sheet are printed to prevent it from being mistaken for a general document, but the present invention is not limited to this, and multiple fm. If an identification mark is printed to identify the OCR sheet, processing corresponding to various OCR sheets can be performed, which not only expands the range of applications but also allows for flexible use of received data.

Further, according to this embodiment, when the OCR sheet is identified as being on the back side, further reception is interrupted and error information is notified to the sender, but the present invention is not limited to this. OCR from the back side after correcting the slope of the received data as long as it does not deviate from the gist of the present invention.
It may be configured so that upside down characters can be recognized as if reading a sheet.

Furthermore, if the OCR sheet is sent upside down, for example, the shape of the tilt detection mark is printed so that it can be determined whether it is on the upper or lower side, and the receiving side character recognition device Then, characters may be recognized by correcting the inclination. In this case, it is sufficient to recognize characters that are upside down.

[Effect] As described above, according to the present invention, it is possible to reliably distinguish between, for example, a character recognition sheet and a general document. If the sheet is on the back side, an error can be detected immediately, thereby providing a character recognition sheet and a character recognition device using recorded information on the sheet, which enable quick response when an error occurs.

In addition, when inputting recorded information recorded on a character recognition sheet from an external communication processing device, it is especially important to be able to respond quickly when an error occurs.
Since this error can be notified to the communication processing device on the sending side, the sending side can immediately perform recovery processing based on this notification.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram showing the configuration of an embodiment according to the present invention, FIG. 2(a) is a diagram showing the surface of an OCR sheet according to this embodiment, and FIG. 2(b) is an OCR sheet according to this embodiment. Figures 3(a) and 3(b) show the back side of the character recognition device 1 according to this embodiment.
FIG. 4 is a schematic block diagram showing the configuration of an embodiment according to the conventional example, and FIG. 5 is a diagram showing the surface of an OCR sheet according to the conventional example. In the figure, 1.51...Character recognition device, 2.52...M
PU, 3. 53...ROM, 4.54...RAM
, 5.55... Image memory, 6.56... Communication processing section, 7.57... OCR sheet identification section, 8.58...
・Tilt detection section, 9.59...Tilt correction section, 10.60
...OCR recognition section, 11.61...Auxiliary storage section, 1
2゜62...System bus, 13...Front and back identification unit,
14゜64...OCR sheet, 14a...Surface, 1
4b...Back side, 63...Line, 100,100'
, 200・OCR sheet identification mark, 101, 101
°, 201... Tilt detection mark, 102, 202...
...Image information, 103, 104... Front and back identification marks. Agent Patent attorney Yasunori Otsuka (and 1 other person)'iL,”
:g, -” (Q) Figure 2 Figure 3 (b)

Claims (5)

[Claims] (1) A character recognition sheet in which a sheet identification mark indicating the type of sheet is printed on the character recording surface, characterized in that the sheet identification mark is printed on each of the front and back sides. (2) an input means for inputting recorded information recorded on the character recognition sheet; a detection means for detecting the sheet identification mark from the recorded information input by the input means; and the sheet detected by the detection means. 2. A character recognition device using recorded information on a character recognition sheet according to claim 1, further comprising a discriminating means for discriminating the sheet based on the identification mark. (3) The character recognition sheet according to claim 1, wherein front and back identification marks for identifying the front and back sides are printed on each of the surfaces. (4) an input means for inputting recorded information recorded on the character recognition sheet; a first detection means for detecting the sheet identification mark from the recorded information input by the input means; a first discrimination means for discriminating the sheet based on the sheet identification mark detected by the means; and a second detection means for detecting the front and back identification marks from the recorded information based on the discrimination by the first discrimination means. and a second discrimination means for discriminating between the front and back sides of the sheet based on the front and back identification marks detected by the second detection means, and an error output means for outputting error information when the second discrimination means determines that the sheet is the back side. 4. A character recognition device using recorded information on a character recognition sheet as claimed in claim 3. (5) The input means includes an external input means for inputting recorded information recorded on the character recognition sheet from an external communication processing device, and the error output means includes an external input means for inputting recorded information recorded on the character recognition sheet into the communication processing. 5. The character recognition device according to claim 4, further comprising notification means for notifying the device.