KR20010001460A - Apparatus and method for recognizing some hand-writing - Google Patents

Abstract

PURPOSE: The apparatus and the method for recognizing a written-down style are provided to efficiently recognize the character and the number inputted into an inking area, by distinguishing the inking area from each other, without the operation for assigning the kind of a recognizer in advance according to the type of a character that will be recognized. CONSTITUTION: A microprocessing unit(30) includes an inking determination part, a recognizer determining part and a recognition part. The inking determination part checks if the inking of a character is continued on a touch screen(38). The recognizer determining part decides for what recognizer an inputted character is included in the area. The recognition part recognizes the inputted character by the recognizer determined by the recognizer determining part. A memory(32) stores data. The character is inputted via a keyboard(34). The touch screen(38) responds to the pressure on its surface applied when the character and the number are inked, and a display controller(36) converts the pressure to an electric signal.

Description

Apparatus and method for recognizing some hand-writing}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recognizer for recognizing letters and numbers, and more particularly, to an apparatus and a method for recognizing characters and numbers encoded for each area by distinguishing the area of the recognition.

As the use of portable information devices has become common with the development of information communication, the necessity of using voice and text recognizers as data input means of small information devices is increasing. As the development and necessity increase, the field of character recognition continues to change and develop. In the present world, no handwriting recognizer recognizes 100% of the handwriting of a general person, and in most cases, a handwriting recognizer can obtain satisfactory results.

In the case of recognizing Korean, English, numbers, etc. of the recognizer together, the recognition rate is not very good when the user recognizes each of the handwritten characters and numbers separately. Therefore, each character type uses a method of recognizing letters or numbers by distinguishing recognizers in advance. In this case, when recognizing Korean, English, or numbers to increase the recognition rate, the user first selects the corresponding recognizer and then writes it in the input area, that is, the inking area. In this case, the recognition rate is very good compared to the mixed recognition method.

FIG. 1 illustrates a recognizer that can distinguish and use a conventional Korean, English, and numeric recognizer.

In this case, an area for distinguishing each recognizer is located at the top, and when the user requires a pen, finger, or mouse to recognize the recognizer, the corresponding recognizer is activated and data input to the inking area is recognized. In the case of the figure, the Hangul recognizer is currently selected, and the user inputs the character "Hong Gil Dong" into the inking area with a pen, and the input content is recognized as the Hangul recognizer.

2 illustrates a case of an English-only recognizer.

If the center of the marking area is marked with a dotted line and written over the center dotted line, it is recognized as an uppercase letter of the English letter, and a letter not crossing the center dotted line is recognized as a lowercase letter. In the figure only the first "S" is uppercase and all other characters are lowercase. To recognize only uppercase letters, write across the middle dotted line; to recognize only lowercase letters, write across the middle dotted line. In this case, the case of the alphabet, the case is more efficient the recognizer. In this case, the operation of designating the recognizer as shown in FIG. 1 is unnecessary.

In the case of FIG. 1, the recognition rate is improved, but it is cumbersome to input a required recognizer after distinguishing the necessary recognizers according to the type of data to be input at the time of data input. In this case, it takes a long time to switch each recognizer, which makes input difficult. In addition, if a different recognizer is specified while using the recognizer, for example, when the Hangul recognizer is finished and the Korean input is completed and the English recognizer at the top of the display is activated to input English, the recognition efficiency cannot be driven because two or more recognizers cannot be driven at the same time. This has the disadvantage of deteriorating.

In the case of FIG. 2, since it is not necessary to specify the type of recognizer to be executed in the case of English only, it is less cumbersome and convenient to use. However, when using a mixture of Korean, English and numbers, a separate implementation method is devised. must do it. That is, there is a problem in that it is not possible to cope with the case where various types of letters and numbers are required.

Technical problem to be solved by the present invention, in order to solve the above problems, it is not necessary to specify the type of recognizer in advance according to the type of characters to be recognized, handwriting recognition that recognizes letters or numbers that are efficiently input to the area to be identified A method and apparatus are provided.

FIG. 1 illustrates a recognizer that can distinguish and use a conventional Korean, English, and numeric recognizer.

2 shows a case of a conventional English-only identifier.

3 shows in block form the functionality of a computer, which is one of the devices in which the invention is implemented.

4 illustrates a flow of recognizer operation in accordance with the present invention.

Figure 5 illustrates one embodiment displayed in accordance with the present invention.

According to the present invention for solving the above technical problem. The handwriting recognizing apparatus includes: a display unit configured to distinguish between each recognizer area by creating a partition for each recognizer area where a user starts to write a letter; An inking determination unit to determine whether the user's character inking continues; A recognizer determination unit that determines which recognizer area an input character is included in when the inking determination unit determines that the inking is finished; And a recognizer configured to recognize the encoded input character for each corresponding recognizer determined by the recognizer determiner.

The display unit is characterized in that the touch screen in response to the pressing pressure.

According to another aspect of the present invention, there is provided a method of recognizing a handwriting, comprising: distinguishing between recognizer areas by creating a partition for each recognizer area on which a user starts writing on a screen on which a user writes text; Determining whether the user's character inking continues; Determining which recognizer area a part of the input character is included in after the inking is finished; And recognizing the encoded input character for each corresponding recognizer.

In the displaying step, the display area of the remaining screen divided by each recognizer area is used as one recognizer area.

In the determining of whether the inking continues, it is determined that the inking tool detects the pressure by pressing the screen, and the inking tool determines that the inking is finished if the inking tool is not detected for more than a predetermined time. It features.

The determining of the recognizer area may include identifying a type of recognizer according to which area the starting portion of the inking starts.

3 shows in block form the functionality of a computer, which is one of the devices in which the invention is implemented.

The computer includes an MPU unit 30, a memory device 32, a keyboard 34, a display control unit 36, and a touch screen 38, which is a screen unit, which performs main control functions of the computer.

The MPU unit 30 includes an inking determination unit, a recognizer determination unit, and a recognition unit.

The checking determining unit determines whether the user's character inking continues on the touch screen 38. The recognizer determiner determines which recognizer region the input characters are included in when the inking determiner determines that the inking is finished, and the recognizer recognizes the encoded input characters for each corresponding recognizer determined by the recognizer determiner.

The storage device 32 is a place for storing data required by a computer, and the keyboard 34 is one device for receiving input from a computer user.

The touch screen 38 responds according to the pressure of pressing the screen when the letters or numbers to be recognized are recognized, and the pressure is changed by the display control unit 36 into electrical signals. The recognition unit of the MPU unit 30 recognizes the encoded character or number in accordance with this signal.

4 illustrates a flow of recognizer operation in accordance with the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the operation of an embodiment of the present invention.

The MPU unit 30 initializes the recognizer (step 40a). Types of recognizers include a Korean recognizer, an English uppercase identifier, an English lowercase identifier, and a numeric identifier. The display is divided by the recognizer area and initialized to display on the touch screen 38 which is a screen (step 40b), and the recognition application program is started (step 40c). You are ready to display the recognizer areas and receive the characters to be recognized.

Figure 5 illustrates one embodiment displayed in accordance with the present invention.

The inking area divided into the Korean area 52 and the uppercase English area 54, the lowercase English area 56, and the numeric area 58 is shown on the background screen 50 in the shape of a rectangle indicated by a dotted line. When you want to input Hangul, the first letter is to be started in the Hangul area 52. If only the first letter is started in the Hangul area 52, the remaining letters are recognized as Hangul even if they leave the Hangul area 52.

In the case of inputting "Student" as shown in FIG. 2, "S" is inputted in the English uppercase letter field 54, the input pen is removed from the screen for a predetermined time, and then "tudent" is entered. Enter to start in the lowercase English letter 56. This predetermined time is determined according to the environment in which the present invention is implemented and is a value that can be changed.

In order to input a number, input is started in the number area 58 as in the above method.

In the present embodiment, only the above four areas are presented, but it is possible to use the remaining screen area displayed for each area as another recognizer area. For example, the displayed configuration is the same as in FIG. 5, but the area not designated as the background screen is designated as the area of special characters (for example, an accounting-only symbol or a mathematical symbol), and is divided by a dotted rectangle. If the inking starts anywhere else, it is recognized as the input of special characters. Alternatively, the Hangul area may be removed from the area configuration of FIG. 5, and instead, all display areas other than the area separated by the dotted rectangle may be designated as the Hangul area.

When pressure is applied to the touch screen 38, the pressure is converted into an electrical signal by the display control unit 36, and the inking determining unit of the MPU unit 30 determines that the input has started (step 41). When pressure is sensed, inking is started (step 42), and the determining unit of the MPU unit 30 determines whether the pressure is applied to the touch screen to continue the inking (step 43b), and is applied by the inking tool. If the pressure is not detected for more than a predetermined time, it is determined that the inking is finished (43a).

As an inking tool, an inking pen is mainly used. Anything that can be pressurized without damaging the screen, for example by fingering. But with your fingers, the size of the screen will make your character unnatural. Depending on the environment of the device to be implemented, as an encoding tool, a digitizer, a mouse, or an electronic pen that detects and emits an electron beam on the screen can be used to distinguish input.

When the end of the inking is completed, the recognizer determination unit of the MPU unit 30 determines which recognizer area is the first pressed area of the pen (step 44). If the input is started in the recognizer area, the corresponding recognizer starts the recognition process according to which recognizer area the starting portion of the inking starts from (steps 45a to 45d).

Another embodiment of the input screen configuration and determination of the recognizer area is presented.

In the above, an input method starting from each recognizer area for each type of character is illustrated. In addition to this method, if a character or parts of characters written on the screen are located in a certain recognizer area, a recognizer corresponding to the area may be operated. For example, when inputting "Hong Gil Dong" in FIG. 5, if only a part of the character "Hong Gil Dong" is included in the Hangul recognizer area 52, the Hangul recognizer operates. In this case, two or more areas may be simultaneously locked. In this case, first, the recognizer of the area containing the encrypted character may be operated. In the step of displaying on the screen, if the identifier sections representing each recognizer area are vertically positioned on the screen at appropriate intervals (for example, the number recognizer area 58 in FIG. 5 is positioned at the bottom of the lower case English letter 56). ), You can eliminate the case where the characters you are inserting are overwritten in two or more areas.

When the corresponding recognizer of the recognition unit of the MPU unit 30 recognizes the input contents, the recognition unit of the MPU unit 30 recognizes the recognized contents so that the user who inputs the recognized contents can easily check the recognized contents. Is displayed on a portion of the touch screen 38. When the user sees the displayed contents and inputs the confirmation, the recognition process is terminated. If there is no input of the confirmation of the user, that is, the user is wrong because the user inputs wrong or wrong input. Then, the process is repeated from the process of determining whether the input of the input starts (step 41) (step 46).

In the above description, the MPU unit 30 has been described as including an identification determiner, a recognizer determiner, and a recognizer. In an actual implementation, the inking determiner, the recognizer determiner, and the recognizer may be implemented in software, that is, recognizer software, and may be executed by a main processor of the computer.

By applying the present invention, it is possible to recognize by distinguishing by type of characters, and this separate process does not need to be distinguished, thereby improving convenience. And when inputting from one area to another while inking input, it is possible to accept the input of input to another area while recognizing the first area. It becomes possible to operate, thereby increasing the efficiency of the recognizer.

The present invention can be implemented through an input device such as a touch screen and a recognizer software in a general computer, and can be used in a small portable device such as a portable terminal.

According to the present invention, an area of the recognizer is separately displayed according to the type of the character to be recognized, and the recognition input starting from the recognition area is recognized for each of the distinguished recognition areas, thereby adding an operation of designating the user by character type. There is no need to improve the user's convenience, and it has the effect of designating a separate recognizer, and by enabling two or more recognizers to operate at the same time, a quick recognition result can be obtained, thereby improving the recognition efficiency. have.

Claims (10)

In the device for recognizing a character input by handwriting, A display unit configured to distinguish between the recognizer areas by creating a partition for each recognizer area where a user starts writing the text; An inking determination unit to determine whether the user's character inking continues; A recognizer determination unit that determines which recognizer area an input character is included in when the inking determination unit determines that the inking is finished; And And a recognizer for recognizing the inputted character by the recognizer determined by the recognizer determiner. The method of claim 1, wherein the display unit, Handwriting recognition device, characterized in that the touch screen in response to the pressing pressure. The method of claim 1, wherein the recognizer display unit, And when the input is partitioned into each recognizer area on the display unit and an input is input only to the remaining area, the recognition recognizes that the inking is started in a recognizer area other than the displayed recognizer area. In the method for recognizing a character that is written and input, Creating a partition for each recognizer area on which a user starts writing on a screen on which a user writes letters, and displaying the partitions separately among the recognizer areas; Determining whether the user's character inking continues; Determining which recognizer area a part of the input character is included in after the inking is finished; And And recognizing the encoded input character for each recognizer. The method of claim 4, wherein in the displaying step, Recognizer areas include Korean, English uppercase letters, lowercase letters, and number areas. The method of claim 4, wherein the displaying step, The method of claim 1, wherein the display area of the screen divided by each recognizer area is used as one recognizer area. The method of claim 4, wherein determining whether the inking continues And determining that the inking tool detects the pressure by pressing the screen, and determines that the inking is finished if the inking tool does not sense the pressure on the screen for a predetermined time. The method of claim 4, wherein the determining of the recognizer area comprises: And a type of recognizer according to which area the beginning of the inking starts. The method of claim 4, wherein recognizing the input comprises: And a display step of displaying the recognized letters or numbers on the screen to confirm whether the letters or numbers encoded in the recognizer area are correctly recognized. The method of claim 9, wherein the displaying step, And continuing from the display step if there is an input of affirmative confirmation on the recognized and displayed contents, and continuing from the step of recognizing if there is an input of affirmative confirmation.