JP2569994B2 - G4 mode OMR sheet recognition method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a G4 mode OMR sheet recognition system in a facsimile communication network having a mail center.

As one of the functions provided by a diversified facsimile communication network, a mail service for storing originals transmitted from a facsimile terminal in a mail center and then delivering the original to a destination facsimile terminal is in practical use.

On the other hand, the most widely used facsimile terminal employs the G3 mode, but has a high image quality.
The number of facsimile terminals employing the four modes tends to increase gradually.

[0004] Therefore, it is demanded that a mail service be provided to a facsimile terminal adopting the G4 mode without any trouble.

[0005]

2. Description of the Related Art FIG. 5 is a view showing an example of a conventional facsimile communication network, FIG. 6 is a view showing an example of an OMR sheet to which the present invention is applied, and FIG. It is a figure showing comparison of pixel density.

In FIG. 5, a telephone network 1 is provided with a mail center 2 to constitute a facsimile communication network capable of providing a mail service to a facsimile terminal 3 adopting the accommodated G3 mode.

When a user of the facsimile terminal 3 uses the mail center 2, the desired mail service is
When filling in the OMR sheet 11 as illustrated in FIG. 6 and inserting it into the facsimile terminal 3 together with the original 12 to be transmitted,
The facsimile terminal 3 has an OMR sheet 11 and an original 12
A predetermined compression process is applied to the image data read from, and it is converted into encoded data 13 ₃ (11 + 12).
Via the mail center 2.

On the upper side of the OMR sheet 11 illustrated in FIG. 6, five long line segments are recorded for identifying the OMR sheet 11 and confirming the insertion direction. A plurality of short segments are recorded for confirming the mark position.

The OM which the terminal devices 3 and 4 can use
The paper shape of the R sheet 11 and the original 12 is, for example, A4 size,
Although there are various types such as a B4 size and an A3 size, here, the A4 size (297 × 210 mm) will be described as an example.

In the mail center 2, the mail service unit 22 transmits the encoded data 13 via the input / output control unit 21.
_{When 3} (11 + 12) is received, the encoded data 13 ₃ (11) corresponding to the OMR sheet 11 is transferred to the OMR sheet recognition unit 23.

In the OMR sheet recognition unit 23, the decompression unit 231 adds the transferred encoded data 13 ₃ (11) to
The image data 14 ₃ (11) corresponding to the OMR sheet 11 is created by performing a decompression process opposite to the compression process executed by the facsimile terminal 3 and stored in the storage unit 232.

The recognizing unit 233 analyzes the recorded contents entered by the user based on the image data 14 ₃ (11) stored in the storing unit 232, recognizes the type of the desired mail service, and recognizes the recognition result. 15 is the mail service section 2
Return to 2.

The mail service section 22 recognizes the OMR sheet.
Facsimile based on the recognition result 15 returned from the
Provide the desired mail service of the similiar terminal 3. This
Here, the G3 mode adopted by the facsimile terminal 3 has a standard.
There are sub-resolution and high-resolution, and vertical at standard resolution
The pixel density and the horizontal pixel density are shown in FIG.
3.85 dots per millimeter and
8.00 dots, resulting in an A4-size OMR
Image data 14 corresponding to the port 11 _3S(11) is 1
920996 dots and high resolution
The vertical pixel density at 1 is twice the standard resolution
7.70 dots per millimeter, horizontal pixel density
The degree is 8.00 per millimeter, the same as the standard resolution.
A4 size O at high resolution because it is a dot
Image data 14 corresponding to MR sheet 11_3H(1
1) is 3841992 dots which is twice the standard resolution.
Will have

Therefore, the storage section 232 stores the high resolution A
It has a storage capacity capable of storing image data 14 _3H (11) corresponding to the OMR sheet 11 of four sizes. Further, since the image data 14 _3H (11) generated in the facsimile terminal 3 varies depending on the insertion state of the OMR sheet 11, the storage capacity of the storage unit 232 has a margin of several% for the number of dots shown in FIG. It is determined in anticipation.

When the telephone network 1 accommodates the facsimile terminal 4 adopting the G4 mode, the G4 mode has a standard resolution and a high resolution. The vertical pixel density and the horizontal pixel density at the standard resolution are shown in FIG. as shown, both a 7.87 dots per millimeter, so that the image data 14 corresponding to the OMR sheet 11 of A4 size _4S (11) becomes to have a 3,863,004 dot at a high resolution and a substantially equal number of G3 mode However, the vertical pixel density and horizontal resolution at high resolution are both 1 per millimeter, which is twice the standard resolution.
5.75 dots, resulting in A4 resolution at high resolution
Image data 1 corresponding to OMR sheet 11 of size
4 _4H (11) is 15471658, which is four times the standard resolution, and therefore approximately four times the high resolution of the G3 mode.
It will have dots.

Therefore, in the mail center 2 for the facsimile terminal 3 employing only the G3 mode, the capacity of the storage section 232 in the OMR sheet recognizing section 23 is insufficient, and the facsimile terminal 4 employing the G4 mode as it is. It is not possible to recognize the encoded data 13 _4H (11) transmitted from the OMR sheet 11, and the OMR sheet recognition unit capable of recognizing the encoded data 13 _4H (11) corresponding to the G4 mode OMR sheet 11 is stored. It was necessary to expand the storage capacity of the unit 232 four times and recreate it.

[0017]

As is apparent from the above description, in a conventional facsimile communication network, G3
The mail center 2 provided to provide the mail service to the facsimile terminal 3 adopting the G4 mode cannot provide the mail service to the facsimile terminal 4 adopting the G4 mode. It is necessary to newly provide a mail center that provides a mail service to the terminal 4, and there is a problem that the economics of the facsimile communication network is impaired.

An object of the present invention is to make it possible to provide a mail service to a facsimile terminal adopting the G4 mode without impairing the economy of a facsimile communication network as much as possible.

[0019]

FIG. 1 is a diagram showing the principle of the present invention. In FIG. 1, reference numeral 100 denotes a facsimile communication network to which the present invention is applied, and reference numerals 3 and 4 denote facsimile terminals accommodated in the facsimile communication network 100. Reference numeral 2 denotes a mail center provided in the facsimile communication network 100 for providing a mail service to the facsimile terminals 3 and 4, and 23 denotes an OMR sheet recognition for recognizing the recorded contents of the OMR sheet transmitted together with the original from the facsimile terminals 3 and 4. Department.

Reference numeral 200 denotes a mode conversion means provided in the OMR sheet recognition unit 23 according to the present invention.

[0021]

The mode converting means 200 converts the information amount of the OMR sheet transmitted from the G4 mode facsimile terminal 4 into:
OMR transmitted from facsimile terminal 3 in G3 mode
Conversion is performed to the same extent as the information amount of the sheet.

The mode conversion means 200 expands the encoded data of the OMR sheet transmitted at the high resolution of the G4 mode into image data every other line, and then extracts the image data every other dot to convert the converted image data. , And expands the encoded data of the OMR sheet transmitted in the standard resolution of the G4 mode in the same manner as the encoded data of the OMR sheet transmitted in the G3 mode to generate image data, and recognizes the OMR sheet. The input to the recognition processing of the unit 23 is considered.

The mode conversion means 200 expands the encoded data of the OMR sheet transmitted at the high resolution of the G4 mode into image data every other line, and then extracts every other dot and converts the converted image data. , And coded data is created by compressing in the same manner as that transmitted by the facsimile terminals 3 and 4, and the OMR transmitted in the G3 mode together with the coded data of the OMR sheet transmitted in the standard resolution of the G4 mode It is considered that image data is created by decompression in the same manner as the encoded data of the sheet and is input to the recognition processing of the OMR sheet recognition unit 23.

Therefore, it is possible to recognize the OMR sheet of the facsimile terminal adopting the G4 mode by making only a relatively small change in the OMR sheet recognition section for the facsimile terminal adopting the G3 mode. It is economically feasible to provide a mail service to a facsimile terminal.

[0025]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a diagram showing a facsimile communication network according to an embodiment of the present invention (claims 1 and 2), FIG. 3 is a diagram showing an example of the expansion / reduction process in FIG. 2, and FIG. FIG. 2 is a diagram showing a facsimile communication network according to an embodiment of items 1 and 3). The same reference numerals indicate the same objects throughout the drawings. The target OMR sheet is as shown in FIG. 6, and G3 used by the facsimile terminal 3
The pixel densities of the mode and the G4 mode adopted by the facsimile terminal 4 are as shown in FIG.

First, one embodiment of the present invention (claims 1 and 2) will be described with reference to FIGS. 2, the telephone network 1 is shown as the facsimile communication network 100 in FIG. 1, and the mode conversion means 20 in FIG.
The extension / reduction unit 234 is provided in the OMR sheet recognition unit 23 as 0.

As a result, the OMR sheet recognizing section 23 shown in FIG. 2 is obtained by additionally modifying the expansion / reduction section 234 to the conventional OMR sheet recognizing section 23 shown in FIG.

First, when the user of the facsimile terminal 3 adopting the G3 mode uses the mail center 2, the desired mail service is entered in the OMR sheet 11 and the original Is inserted into the facsimile terminal 3, the facsimile terminal 3
The image data read from the sheet 11 and the manuscript 12 are subjected to a predetermined compression process, and the encoded data 13 ₃ (11+
12) and transmit it to the mail center 2 via the telephone network 1.

In the mail center 2, the mail service unit 22 transmits the encoded data 13 via the input / output control unit 21.
_{3 When} (11 + 12) is received, the source facsimile terminal 3 recognizes that the G3 mode is adopted, and
Encoded data 13 ₃ (11) corresponding to MR sheet 11
Is transferred to the extension unit 231 of the OMR sheet recognition unit 23.

In the OMR sheet recognizing section 23, the decompressing section 231 transmits the encoded data 13
₃ (11) is subjected to decompression processing to create image data 14 ₃ (11) corresponding to the OMR sheet 11 and store it in the storage unit 232.

The recognizing unit 233 stores the data in the storage unit 2 in the same manner as described above.
Based on the image data 14 ₃ (11) stored in the memory 32, the contents of the record entered by the user are analyzed, the type of the desired mail service is recognized, and the recognition result 15 is returned to the mail service unit 22.

The mail service unit 22 provides a desired mail service of the facsimile terminal 3 based on the recognition result 15 returned from the OMR sheet recognition unit 23. Next, when the user of the facsimile terminal 4 adopting the G4 mode uses the mail center 2 at the standard resolution, the desired mail service is entered in the OMR sheet 11 and the original to be transmitted is written as described above. 12 together with the facsimile terminal 4, the facsimile terminal 4
The image data read from the sheet 11 and the manuscript 12 are subjected to a predetermined compression process, and the encoded data 13 _4S (11+
12) and transmit it to the mail center 2 via the telephone network 1.

In the mail center 2, the mail service unit 22 transmits the encoded data 13 via the input / output control unit 21.
_{When 4S} (11 + 12) is received, the source facsimile terminal 4 recognizes that the standard resolution of the G4 mode is employed, and recognizes the encoded data 1 corresponding to the OMR sheet 11.
_34S (11) is extended to the extension unit 231 of the OMR sheet recognition unit 23.
Transfer to

In the OMR sheet recognizing section 23, the decompressing section 231 transmits the encoded data 13
_{The 4S} (11) is subjected to a decompression process to create image data _144S (11) corresponding to the OMR sheet 11 and store it in the storage unit 232.

It should be noted the number of dots A4 size OMR sheet 11 by G4 mode standard resolution of, as shown in FIG. 7, for approximately the same as the number of dots A4 size OMR sheet 11 by the high-resolution G3 mode, image data 14 _4S
(11) can be sufficiently stored in the storage unit 232.

The recognizing unit 233 stores the data in the storage unit 2 in the same manner as described above.
Based on the image data _144S (11) stored in the storage 32, the contents of the record entered by the user are analyzed, the type of the desired mail service is recognized, and the recognition result 15 is returned to the mail service unit 22.

[0037] The mail service unit 22, as described above,
Based on the recognition result 15 returned from the OMR sheet recognition unit 23, the desired mail service of the facsimile terminal 4 is provided.

Next, when the user of the facsimile terminal 4 adopting the G4 mode uses the mail center 2 with high resolution, the desired mail service is entered in the OMR sheet 11 and transmitted as described above. When the facsimile terminal 4 is inserted into the facsimile terminal 4 together with the original 12 to be processed, the facsimile terminal 4 applies predetermined compression processing to the image data read from the OMR sheet 11 and the
It is converted to 3 _4H (11 + 12) and transmitted to the mail center 2 via the telephone network 1.

In the mail center 2, the mail service unit 22 transmits the encoded data 13 via the input / output control unit 21.
_{When 4H} (11 + 12) is received, it is recognized that the source facsimile terminal 4 employs the high resolution of the G4 mode, and the encoded data 13 corresponding to the OMR sheet 11 is recognized.
_4H (11) is expanded and reduced by the OMR sheet recognition unit 23.
Transfer to 4.

In the OMR sheet recognizing section 23, the expanded / reduced section 234 transfers the encoded data 13 _4H (11).
(L = 1) is extracted (step S in FIG. 3).
1) After performing a predetermined decompression process, the image data 14
After conversion to _4H (11) (step S2), reduced image data 16 (11) extracted every other pixel from the beginning of the first line of image data _144H (11) and reduced by half in the horizontal direction (Step S3), and the storage unit 23
Store in 2.

Next, the expansion / reduction unit 234 outputs the second line (L
Not a = 2) interlaced to third line (L = 1 + 2 = 3) was subjected to extraction (step S4), and the last line of the third line (L = 3) is OMR sheet 11 (L = L _M) After confirming that the data is extracted (step S5), the image data is converted into image data _144H (11) by performing a predetermined decompression process (step S2), and then the image data _{144H of} the third line is obtained.
Extract every other pixel from the beginning of (11), and extract 1 /
The reduced image data 16 (11) reduced to 2 is created (step S3) and stored in the storage unit 232.

Similarly, the expansion / reduction unit 234 outputs the encoded data.
Data 13_4H(11) was extracted every other line and extracted
Encoded data 13 for one line_4H(11)
Data 14_4HAfter expanding to (11), extract every other pixel
Processing to the last line (L = L _M)
Therefore, the storage unit 232 has a horizontal direction and a vertical direction, respectively.
The reduced image data 16 (11) compressed to 1/2
It is accumulated.

As shown in FIG. 7, the number of dots of the A4 size OMR sheet 11 in the high resolution of the G4 mode is four times the number of dots of the A4 size OMR sheet 11 in the standard resolution of the G4 mode. The number of dots of the data 16 (11) is equal to the number of dots of the A4 OMR sheet 11 at the standard resolution of the G4 mode, and can be sufficiently stored in the storage unit 232.

The recognizing unit 233 stores the data in the storage unit 2 in the same manner as described above.
32, the reduced image data 16 (11)
Based on this, the contents of the record entered by the user are analyzed, the type of the desired mail service is recognized, and the recognition result 15 is returned to the mail service unit 22.

The mail service unit 22 operates as described above.
Based on the recognition result 15 returned from the OMR sheet recognition unit 23, the desired mail service of the facsimile terminal 4 is provided.

As is clear from the above description, according to this embodiment, the OMR sheet recognition unit 23 of the mail center 2 for the facsimile terminal 3 adopting the G3 mode has
By additionally modifying the extension / reduction unit 234, the OMR sheet recognition unit 23 can quickly recognize the OMR sheet 11 not only for the facsimile terminal 3 employing the G3 mode but also for the facsimile terminal 4 employing the G4 mode. The mail service can be economically provided to the facsimile terminal 4 adopting the G4 mode.

Next, one embodiment of the present invention (claims 1 and 3) will be described with reference to FIG. In FIG. 4, the telephone network 1 is shown as the facsimile communication network 100 in FIG. 1, and the expansion / reduction unit 234 and the compression unit 235 are provided in the OMR sheet recognition unit 23 as the mode conversion means 200 in FIG.

As a result, the OMR sheet recognition section 23 shown in FIG. 2 is obtained by adding the expansion / reduction section 234 and the compression section 235 to the conventional OMR sheet recognition section 23 shown in FIG.

First, when the user of the facsimile terminal 3 adopting the G3 mode uses the mail center 2, the desired mail service is entered in the OMR sheet 11 and the original Is inserted into the facsimile terminal 3, the facsimile terminal 3
The image data read from the sheet 11 and the manuscript 12 are subjected to a predetermined compression process, and the encoded data 13 ₃ (11+
12) and transmit it to the mail center 2 via the telephone network 1.

In the mail center 2, the mail service unit 22 transmits the encoded data 13 via the input / output control unit 21.
_{3 When} (11 + 12) is received, the source facsimile terminal 3 recognizes that the G3 mode is adopted, and
Encoded data 13 ₃ (11) corresponding to MR sheet 11
Is transferred to the extension unit 231 of the OMR sheet recognition unit 23.

Thereafter, the OMR sheet recognizing section 23 recognizes the type of the desired mail service in the same process as in FIG. 5, returns the recognition result 15 to the mail service section 22, and sends the recognition result 15 to the facsimile terminal. 3. Provide the desired mail service.

Next, when the user of the facsimile terminal 4 adopting the G4 mode uses the mail center 2 at the standard resolution, the desired mail service is entered in the OMR sheet 11 and transmitted as described above. Manuscript 12 to be
When the facsimile terminal 4 is inserted into the facsimile terminal 4, the facsimile terminal 4 applies a predetermined compression process to the image data read from the OMR sheet 11 and the original 12 to convert the image data into encoded data 13 _4S (11 + 12), and sends the e-mail via the telephone network 1. Send to center 2.

In the mail center 2, the mail service unit 22 transmits the encoded data 13 via the input / output control unit 21.
_{When 4S} (11 + 12) is received, the source facsimile terminal 4 recognizes that the standard resolution of the G4 mode is employed, and recognizes the encoded data 1 corresponding to the OMR sheet 11.
_34S (11) is extended to the extension unit 231 of the OMR sheet recognition unit 23.
Transfer to

Thereafter, the OMR sheet recognizing section 23 recognizes the type of the desired mail service in the same process as in FIG. 2, returns the recognition result 15 to the mail service section 22, and sends it to the facsimile terminal. 4 Provide the desired mail service.

Next, when the user of the facsimile terminal 4 adopting the G4 mode uses the mail center 2 with high resolution, the desired mail service is entered in the OMR sheet 11 and transmitted as described above. When the facsimile terminal 4 is inserted into the facsimile terminal 4 together with the original 12 to be processed, the facsimile terminal 4 applies predetermined compression processing to the image data read from the OMR sheet 11 and the
It is converted to 3 _4H (11 + 12) and transmitted to the mail center 2 via the telephone network 1.

In the mail center 2, the mail service unit 22 sends the encoded data 13 via the input / output control unit 21.
_{When 4H} (11 + 12) is received, it is recognized that the source facsimile terminal 4 employs the high resolution of the G4 mode, and the encoded data 13 corresponding to the OMR sheet 11 is recognized.
_4H (11) is expanded and reduced by the OMR sheet recognition unit 23.
Transfer to 4.

In the OMR sheet recognizing section 23, the expansion / reduction section 234 extracts the transferred encoded data 13 _4H (11) every other line as in FIGS. Encoded data 13 _4H (1
After decompressing 1) into image data _144H (11), by executing a process of extracting every other pixel, reduced image data 16 (11) for one line is generated.
The data is transferred to the compression unit 235.

The compression unit 235 performs the same compression processing as that performed by the facsimile terminal 4 to generate the encoded data 13 _4H (11 + 12) on the transferred reduced image data 16 (11) for one line, and then performs decompression. To the unit 231.

The expansion / reduction unit 234 and the compression unit 235 repeat the above process until the final line (L = L _M ). Reduced image data 16 (11)
Is transferred.

The decompression unit 231 encodes the encoded data 13 ₃ (11) and 13 _4S transferred from the mail service unit 22.
As in the case of (11), the reduced coded data 17 (11) transferred from the compression unit 235 is decompressed, and
Reduced image data 16 corresponding to OMR sheet 11
(11) is created and stored in the storage unit 232.

The recognizing unit 233 stores the data in the storage unit 2 in the same manner as described above.
32, the reduced image data 16 (11)
Based on this, the contents of the record entered by the user are analyzed, the type of the desired mail service is recognized, and the recognition result 15 is returned to the mail service unit 22.

[0062] The mail service unit 22, as described above,
Based on the recognition result 15 returned from the OMR sheet recognition unit 23, the desired mail service of the facsimile terminal 4 is provided.

As is clear from the above description, according to the present embodiment, the OMR sheet recognition unit 23 of the mail center 2 for the facsimile terminal 3 adopting the G3 mode has
By adding the expansion / reduction unit 234 and the compression unit 235, the encoded data 13 _4H (11) corresponding to the OMR sheet 11 with the high resolution in the G4 mode is reduced to the reduced encoded data 17 (11), and then G3 Like the encoded data 13 ₃ (11) in the mode and the encoded data 13 _4S (11) in the standard resolution in the G4 mode, the data is input to the decompression unit 231.
Thus, the OMR sheet 11 can be recognized in the G4 mode without remodeling the OMR sheet 3.

FIGS. 2 to 4 are merely examples of the present invention. For example, the facsimile communication network 100 to which the present invention is applied is limited to the telephone network 1 to which the mail center 2 shown is added. There are many other possible variations, but the effect of the invention remains the same in any case.

[0065]

As described above, according to the present invention, in the facsimile communication network, the G4 mode is adopted by making only a relatively small change in the OMR sheet recognition unit intended for the facsimile terminal adopting the G3 mode. The OMR sheet of the facsimile terminal can be recognized, and provision of a mail service to the facsimile terminal adopting the G4 mode can be economically realized.

[Brief description of the drawings]

FIG. 1 illustrates the principle of the present invention.

FIG. 2 is a diagram showing a facsimile communication network according to an embodiment of the present invention (claims 1 and 2);

FIG. 3 is a diagram showing an example of an expansion / reduction process in FIG. 2;

FIG. 4 is a diagram showing a facsimile communication network according to an embodiment of the present invention (claims 1 and 3);

FIG. 5 is a diagram showing an example of a conventional facsimile communication network;

FIG. 6 is a diagram showing an example of an OMR sheet to which the present invention is applied;

FIG. 7 is a diagram showing a comparison of pixel density between the G3 mode and the G4 mode.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 telephone network 2 mail center 3, 4 facsimile terminal 11 OMR sheet 12 manuscript 13 encoded data 14 image data 15 recognition result 16 reduced image data 17 reduced encoded data 21 input / output control unit 22 mail service unit 23 OMR sheet recognition unit 100 Facsimile communication network 200 Mode conversion means 231 Decompression unit 232 Storage unit 233 Recognition unit 234 Decompression / reduction unit 235 Compression unit

Claims (3)

(57) [Claims] 1. A facsimile communication network (100) including a mail center (2) for delivering a document transmitted from a facsimile terminal (3, 4) based on the recorded contents of an OMR sheet transmitted together with the document. An OMR sheet recognizing unit (23) provided in the mail center (2) and recognizing the recorded contents of the OMR sheet transmitted from the G3 mode facsimile terminal (3) is provided with a G4 mode facsimile terminal (4). ) Transmits the information amount of the OMR sheet to the facsimile terminal in the G3 mode (3).
A G4 mode OMR sheet recognition system, comprising: a mode conversion means (200) for converting the information amount to about the same as the information amount of the OMR sheet transmitted from the GMR. 2. The method according to claim 1, wherein the mode conversion means is a G4.
After the encoded data of the OMR sheet transmitted at the high resolution of the mode is expanded every other line into image data, it is extracted every other dot to create converted image data, and the standard resolution of the G4 mode The encoded data of the OMR sheet transmitted by the above is decompressed in the same manner as the encoded data of the OMR sheet transmitted in the G3 mode to create image data, which is used for the recognition processing of the OMR sheet recognition unit (23). The G4 mode OMR sheet recognition method according to claim 1, wherein the input is performed. 3. The mode conversion means (200) includes a G4
The encoded data of the OMR sheet transmitted at the high resolution of the mode is decompressed every other line into image data, and then extracted every other dot to create converted image data, and the facsimile terminal (3, 4) Compressed data is created in the same manner as the transmitted data to generate encoded data, and the OMR sheet transmitted in the G3 mode is transmitted together with the encoded data of the OMR sheet transmitted at the standard resolution of the G4 mode.
2. The G4 mode OMR sheet recognition method according to claim 1, wherein the image data is created by decompressing the image data in the same manner as the encoded data of the sheet and input to the recognition processing of the OMR sheet recognition unit.