JPH05108870A - Method and device for processing image - Google Patents

Abstract

PURPOSE:To indicate whether the execution of word collation processing is proper or not by character-recognizing image information once and looking at the result. CONSTITUTION:Image data is read and stored in RAM S202 and a recognition mode whether to execute word collation or not is set to be stored as flag information in RAM S203. Stored image data is character-recognition processed to output plural recognition candidate character S204 and whether word-collate is executed from flag information of S203 or not is judged S205. In the case of executing word collation, a necessary word dictionary is selected to be set in RAM s206 to 207. Then, word collation is executed S208 to store recognition data and a recognition result is displayed S209 to 210. When word collation is not executed, the recognition result is displayed directly through S209 and S210. When it is judged that word collation is necessary from the result, the steps from S206 are executed again to display a new recognition result at S210.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character recognition method and device, and more particularly to a character recognition method and device that can collate a recognition result with a word dictionary and correct erroneous recognition.

[0002]

2. Description of the Related Art Conventionally, for image data displayed on a display to be processed, whether or not to perform word matching processing is selected in advance as one of recognition modes before starting recognition processing. Some of them operate the recognition process according to the set mode.

[0003]

However, in the above-mentioned conventional example, the chance of selecting whether or not to perform the word matching process is only before performing the recognition process, and for example, it is assumed that the word matching process is not performed before the recognition process. If the mode is set,
It is not possible to instruct again to perform word matching processing for the recognition result after the recognition result is displayed, and in order to correct the recognition result, the wrong part while observing the recognition result on the display However, there is a disadvantage that the recognition result cannot be proofread efficiently because the recognition can be done only by correcting the words one by one or by re-recognizing the word in the mode for performing the word matching again.

[0004]

A character recognition device for photoelectrically reading a manuscript image and recognizing the character of the manuscript by using an image data storage means and a recognition means, the word dictionary storage means and the word A word dictionary setting unit that expands the contents of the dictionary in the memory, a word matching processing unit that activates the word matching process independent of the recognition process, a recognition result display unit that displays the recognition result to the operator, and a recognition result display unit that displays the recognition result. A recognition data saving means for saving the data in the memory, and an independent execution instructing means for the operator to judge and instruct whether or not to perform the word matching processing on the recognition result independently of the recognition processing after displaying the recognition result. With the provision, the word matching process can be performed independently of the recognition process.

In order to solve the above problems, the present invention stores a word dictionary, recognizes image information to create document information, displays the document information, and displays the displayed document information in the word. There is provided an image processing method characterized by instructing to collate with a dictionary and controlling the document information to collate with the word dictionary according to the instruction.

In order to solve the above problems, the present invention provides a word storage unit for storing a word dictionary, a recognition unit for recognizing image information to obtain document information, a display unit for displaying the document information, and Instruction means for instructing to collate the document information displayed by the display means with the word dictionary, and control for collating the document information with the word dictionary stored in the word storage means in response to the instruction by the instructing means And an image processing device for controlling the image processing device.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a hardware configuration diagram for realizing the character recognition device of this embodiment.

In the figure, 101 is a ROM which will be described later.
A CPU that controls the entire apparatus based on a program stored in 102. A ROM (Read Only Memory) 102 stores a control program of the CPU 203 and various data. An image data reading unit 103, such as a scanner, photoelectrically reads an original and inputs the original. Reference numeral 104 denotes a RAM (random access memory) used for storing image data read by the reading unit, developing a work area, developing a word dictionary, storing a recognition dictionary, and recognition data. Reference numeral 105 denotes an input unit such as a keyboard and a pointing device (hereinafter referred to as PD) used by the operator to give instructions and perform various inputs. 106
Is a display unit for displaying input image data, a recognition result, or an instruction to an operator such as a CRT. A character recognition unit 107 performs a character recognition process. Reference numeral 108 denotes a word dictionary storage unit such as an external storage device that stores one or more word dictionaries used in the word matching process. 109-11
Reference numeral 2 denotes various interface units. Reference numeral 113 is a bus for connecting the above respective parts.

FIG. 2 is a flow chart showing a word matching process in the character recognition device of this embodiment. A control program for executing this process is stored in the ROM 102 and the CPU 10 is operated.
It is processed under the control and judgment of 1.

First, in step S201, the image data is read from the image data reading unit 103, and in step S202 the image data is stored in the RAM 104.

Next, in step S203, whether or not to perform word matching is set as one of the recognition modes and stored in the RAM 104 as flag information. In this recognition mode setting method, as shown in FIG. 3, a window is displayed by instructing the “recognition setting” icon 301 displayed on the display unit 106 using the input unit 105, and the mode is collectively displayed here. By specifying the setting icon 302, 30
The recognition mode setting window as shown in 3 is displayed,
Here, settings such as word matching can be performed.

In step S204, character recognition processing is performed on the input image information stored in the RAM 104, and a plurality of recognition candidate characters are output.

In step S205, step S203
If the CPU 101 determines whether or not to perform the word collation from the flag information of the RAM 104 set in step 1, and if the word collation is performed, the process proceeds to step S206, and one or more stored in the word dictionary storage unit 109. The required dictionary is selected from the word dictionary of, and its contents are expanded in the RAM 104 in step S207. Next, a word matching process is performed in step S208, the recognition data is saved in step S209, and the recognition result is displayed in step S210.

If it is determined in step S205 that word matching is not performed, the recognition data is stored in the RAM 104 in step S209, and the recognition result is displayed on the display unit 106 in step S210. At this time, when the operator determines that it is necessary to perform word matching by looking at the display result, he / she designates the “recognition execution” icon 400 displayed on the display unit 106 by the input unit 105 as shown in FIG. Open a window such as 401, open the window shown at 402 by pointing to the "word matching" icon in this window, select a single execution of word matching by designating a dictionary and specifying "execute" (Step S211), the process proceeds to step S206, and the word dictionary storage unit 1
09, the necessary dictionary is selected from one or a plurality of word dictionaries stored, and its contents are read in step S207.
Expand to AM104. Next, in step S208, only word matching is performed on the recognition result later, and new recognition data is saved again in step S209.
0 indicates a new recognition result.

Other Embodiments (1) In addition to a basic dictionary in which basic words are recorded, a user dictionary that can be freely registered / deleted by the user is used to refer to the recognition result output by the operator. However, the user dictionary can be improved by registering or deleting an appropriate word in the user dictionary, and at the same time, the word matching can be executed again to efficiently proofread the recognition result.

The flow of this process is shown in the flow chart of FIG. 5. The same processes as those in the flow chart of FIG. 2 are designated by the same step numbers, and a description thereof will be omitted here.

The control program for executing this processing is RO
It is stored in M102, controlled by the CPU 101, and processed under the judgment.

In step S505, step S203
If the CPU 101 determines whether or not to perform the word collation from the flag information of the RAM 104 set in step 1, and if the word collation is to be performed, the process proceeds to step S506, and one or more stored in the word dictionary storage unit 109. The required dictionary is selected from the word dictionary of, and its contents are expanded in the RAM 104 in step S507. Next, word matching processing is performed in step S508, the recognition data is saved in step S509, and the recognition result is displayed in step S210.

If word matching is not to be performed, the recognition data is saved as it is in step S509, and then step S5 is performed.
The recognition result is displayed at 10. At this time, when the operator determines that the user dictionary used for performing word matching by looking at the display result needs to be improved, the operator selects the user dictionary improvement in step S511 to newly update the user dictionary in step S512. New words, or delete words that are judged unnecessary.

Then, in step S513, if word matching is performed using the improved user dictionary, it is possible to proofread by word matching processing again by proceeding to step S506 and selecting the user dictionary.

(2) When recognition processing is performed on a plurality of recognition target images, word recognition is not performed and only the recognition processing is performed at high speed. The recognition results are referred to later, and individual recognitions corresponding to the plurality of recognition target images are performed. It is possible to efficiently calibrate the recognition result by performing word matching by selecting whether or not word matching processing is necessary or not for the result or selecting a dictionary used for word matching processing.

The flow of this process is shown in the flow chart of FIG. 6. The same processes as those in the flow chart of FIG. 2 are designated by the same step numbers, and a description thereof will be omitted here.

The control program for executing this processing is RO
It is stored in M102, controlled by the CPU 101, and processed under the judgment.

In step S605, the recognition result data is temporarily stored in the RAM 104.

If the operator determines in step S606 that the recognition process is to be continued, step S20 is performed.
The process proceeds to 1 and the next image data is read, and the same recognition processing as the previous time is repeated. Meanwhile, the recognition result data is stored in the RAM 104 in step S605.

If it is determined in step S606 that the recognition process is not to be continued, the process advances to step S607 to take out the recognition result data stored in the RAM 104 in the order of storage.

If the recognition data exists in step S608, the recognition result is temporarily displayed in step S609.

In step S610, the operator determines whether or not the user dictionary needs to be improved, and if necessary, the word is registered or deleted in step S611.

Next, in step S612, the operator determines whether or not to perform the word matching alone. If the word matching is performed, the operator proceeds to step S613, and if the improved user dictionary is used, the word dictionary storage section. The user dictionary stored in 109 is selected, and its contents are expanded in the RAM 104 in step S614. Next in step S6
The word matching process is performed in step 15, the current recognition data is updated and saved in step S616, and the recognition result is displayed in step S609.

If it is determined in step S612 that word matching is not to be performed, the process advances to step S607 to extract new recognition result data.

If there is no newly obtained recognition result in step S608, it is determined that the proofreading of the word matching process has been completed for all the recognition results, and the process ends.

(3) Prepare user dictionaries in a plurality of different fields, and in the recognition processing, perform word matching using the basic dictionary or recognize without word matching, and from the recognition result, the operator specifies When it is determined that the number of words is large, it is possible to efficiently proofread the recognition result by performing word matching again using the user dictionary of the field including the specific word in the category.

The flow of this process is shown in the flow chart of FIG. 7. The same processes as those in the flow chart of FIG. 2 are designated by the same step numbers, and a description thereof will be omitted.

FIG. 7 is a flow chart showing the word collation processing in the character recognition apparatus of this embodiment. The control program for executing this processing is stored in the ROM 102 and the CPU 10
It is processed under the control and judgment of 1.

In step S705, in order to save the operator's trouble, a dictionary in which basic words are registered in advance is prepared, and whether the word matching is performed using the basic dictionary from the flag information of the RAM 104 set in step S203. If the CPU 101 determines whether or not to perform word matching using the basic dictionary, the contents of the basic dictionary are expanded in the RAM 104 in step S706. Next in step S70
The word matching process is performed in step 7, the recognition data is saved in step S708, and the recognition result is displayed in step S709.

In step S710, the operator determines whether or not to perform the word collation alone by using the user dictionary in which the words that are not in the basic dictionary are registered. If the word collation is performed, the process proceeds to step S711. Storage 10
9. Select a required dictionary from one or a plurality of user dictionaries stored in 9, and set its contents to R in step S712.
Expand to AM104. Next, word matching processing is performed in step S713, the recognition data is saved in step S708, and the recognition result is displayed in step S709.

If the operator determines in step S710 that it is not necessary to independently perform word matching using a user dictionary in which words that are not in the basic dictionary are registered, the process is terminated.

[0038]

As described above, according to the present invention, the word matching process can be performed independently of the recognition process, so that the recognition result can be efficiently calibrated and the operability is improved. It is possible to improve and shorten the processing time of the entire character recognition.

As described above, according to the present invention, it is possible to perform the word collation process on the document information as a result of character recognition of the input image, so that whether or not the word process is performed after the recognition result is seen. Since the operator can make such a judgment and give an instruction, there is an effect that the efficiency of recognition can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a character recognition device according to an embodiment.

FIG. 2 is a flowchart showing a word matching process in the character recognition device of this embodiment.

FIG. 3 is a diagram showing an example when a recognition mode is set in the character recognition device of the present embodiment.

FIG. 4 is a diagram showing an example when a word matching is independently instructed to be executed in the character recognition device in the embodiment.

FIG. 5 is a flowchart showing an example of word matching processing in the character recognition device in another embodiment (1).

FIG. 6 is a flowchart showing an example of word matching processing in the character recognition device of another embodiment (2).

FIG. 7 is a flowchart showing an example of word matching processing in the character recognition device of another embodiment (3).

[Explanation of symbols]

101 CPU 102 ROM 103 Image data reading unit 104 RAM 105 Input unit 106 Display unit 107 Character recognition unit 108 Word dictionary storage unit 109, 110, 111, 112 Various interface units 113 Bus 301 Main menu in the character recognition device of this embodiment 302 Sub-menu related to pre-recognition setting selected in main menu 303 Sub-menu related to recognition mode setting selected in sub-menu related to pre-recognition 401 Sub-menu related to recognition execution selected in main menu 402 Sub-menu related to recognition execution Sub-menu for dictionary selection and single execution instruction of word matching selected in

Claims (2)

[Claims] 1. A word dictionary is stored, image information is recognized to create document information, the document information is displayed, and an instruction is issued to check the displayed document information with the word dictionary. An image processing method, comprising controlling the document information to match the word dictionary according to an instruction. 2. A word storage unit that stores a word dictionary, a recognition unit that recognizes image information to obtain document information, a display unit that displays the document information, and a document information that is displayed by the display unit. It has an instruction means for instructing to collate with the word dictionary, and a control means for controlling so as to collate the document information with the word dictionary stored in the word storage means in response to an instruction by the instructing means. Image processing device.