JPH0512481A - Character recognizing device - Google Patents

Abstract

PURPOSE:To realize high-quality data transmission and high-speed transmission by transmitting important sentences with image data and transmitting the other characters with a recognized character code at the character recognizing device equipped with a data transmitting function. CONSTITUTION:This device is composed of an image read part 1, memory part 2, character segmenting part 3; character recognizing part 4, image compressing part 5, transmitting data memory part 6, MODEM transmission part 7 and control part 8. The image data read by the image read part 1 are stored in the image memory part 2, and the characters are segmented one by one at the character segmenting part 3 and recognized by the character recognizing part 4. When there are specified characters in the recognized characters, an image area sandwiched by the specified characters is compressed. These data are stored in the transmitting data memory part 6 and successively transmitted to an outside terminal by the MODEM transmission part 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character recognition device having a function of transmitting a read image, which realizes high reliability and high speed of data transmission.

[0002]

2. Description of the Related Art A conventional character recognition device having a transmission function will be described with reference to FIG.

The document data is stored in the image reading section 21 shown in FIG.
Is read, converted into bitmap data, stored in the image memory unit 22, and recognized by the character recognition unit 23. The recognized character code is stored in the transmission data memory unit 24 and is transmitted to the outside by the modem transmission unit 25.

[0004]

As described above, in the conventional character recognition device having the transmission function, the entire sentence is converted into the character code and transmitted. For this reason, if the character recognition is incorrect, the important part is often transmitted with the wrong character code as it is, and the important sentence part is often misrecognized, resulting in low reliability of data transmission.

An object of the present invention is to provide a character recognition device which solves these problems in the prior art, improves the transmission quality, and is capable of high-speed transmission.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a character recognition unit for converting an image of a read document into a character code and transmission data for storing the read image in the form of a character code or image data. A memory unit and a control unit for controlling which form to store and the whole are provided.

[0007]

In the present invention, a character pattern and pattern data having an extremely high recognition rate are inserted to the left and right of the important sentence portion.
When the character recognition unit recognizes and detects this, the control unit stores the image data corresponding to the important sentence portion designated by the character and pattern data in the transmission data memory unit as it is and transmits it. As described above, the extremely important text data is transmitted as image data, so that high-quality data transmission can be realized without erroneous recognition and the like.
In addition, since other sentences are transmitted by the recognized character code, high-speed transmission is possible (even if there are some erroneously recognized characters in a normal sentence, the sentence can be almost understood).

As described above, by transmitting the image data together with the character code, a high quality of data transmission is realized.

[0009]

1 is a block diagram of a character recognition apparatus according to an embodiment of the present invention. 3 and 4 show software flowcharts of the present invention.

In FIG. 1, 1 is an image reading unit, 2 is an image memory unit, 3 is a character cutting unit, 4 is a character recognizing unit for each character, 5 is an image data compressing unit, and 6 is a character recognizing unit 4.
Is a transmission data memory unit for storing the data of the character code recognized by, the compressed image data of the image data compression unit 5, etc., 7 is a modem transmission unit, and 8 is a control unit. FIG. 5 is a hardware block of this embodiment, 9 is a CPU that produces the function of the control unit 8, 10 is a program and work area memory, and 11 is a main bus. The character recognition device of the present embodiment configured as described above will be described in detail with reference to the operation flowcharts of the control unit 8 in FIGS.

First, the image reading unit 1 reads image data from a book, magazine or the like (step 1 in FIG. 3). The read data becomes binary data and is stored in the image memory unit 2 (step 2). Next, in the character cutout unit 3, character cutout is performed for each character from the upper left corner of the image memory of the image memory unit 2 (step 3). The cut-out image data is recognized character by character by the character recognition unit 4 and converted into a character code (step 4). When the character code is the specific code registered in advance and is at the beginning, it is determined that the specific character code exists, and the specific flag is set (steps 5 and 6).
In addition, the following character area is compressed as image data until the next specific character code is detected,
The data is stored in the transmission memory unit 6 (step 7). If it is a specific character code, but it is not at the beginning, the specific flag is reset (see subroutine in FIG. 4), and thereafter, normal character recognition is performed until the next specific character code is detected, and the recognized character code is transmitted to the transmission memory. Store in part 6. If it is not the specific code, the recognized character code is sequentially stored in the transmission memory unit 6. The above operation is repeated until the recognition of all image data is completed. After the recognition is completed, the contents of the transmission memory unit 6 are sequentially transmitted to the partner terminal.

[0012]

As described above, according to the present invention, by transmitting an important sentence as image data, it is possible to improve the transmission quality and also realize high-speed transmission.

[Brief description of drawings]

FIG. 1 is a functional block diagram of an embodiment of the present invention.

FIG. 2 is a functional block diagram of a conventional data transmission device.

FIG. 3 is a flowchart of the operation of the control unit according to the embodiment.

FIG. 4 is a subroutine diagram of the flowchart of FIG.

FIG. 5 is a hardware block diagram of the embodiment.

[Explanation of symbols]

 1 image reading unit 2 image memory unit 3 character cutting unit 4 character recognition unit 5 image data compression unit 6 transmission data memory unit 7 modem transmission unit 8 control unit 9 CPU 10 memory unit 11 main bus 21 image reading unit 22 image memory unit 23 Character recognition unit 24 Transmission data memory unit 25 Modem transmission unit

Claims (1)

Claim: What is claimed is: 1. An image reading unit for reading a document, an image memory unit for storing the read image data, a character cutout unit for cutting out the image data of the image memory unit for each character, and a cutout unit. A character recognition unit that recognizes the characters, a transmission data memory unit that stores the other image data, a transmission unit that transmits the data, and the read image data are recognized to detect specific character data and pattern data. When the specified character is detected, the image data of the image area corresponding to the subsequent character part is stored in the transmission data memory part until the next specific character is detected. Sequentially stores the character codes recognized by the character recognition unit in the transmission data memory unit, and after all data recognition is completed,
A character recognition device, comprising: a control unit for transmitting the contents of a transmission data memory unit to an external terminal by a modem transmission unit.