JPH0550033B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an improvement in an input method for correcting unreadable characters from a terminal in an OCR system.

[Technical background of the invention]

In high-speed processing OCR equipment systems, it has been proposed to install multiple reject correction terminals to increase throughput. That is,
In this system, a plurality of operators share the correction work of displaying original images of characters that are deemed unreadable by an OCR device on, for example, a CRT display device and inputting correct reading results from a keyboard or the like. Therefore, it is possible to reduce the waiting time on the OCR device side, improve the operating rate, and reduce the burden on the operator.

[Problems with background technology]

However, in such a system, when specifying a certain terminal for correction, OCR
The device usually waits for a response from this terminal. For example, if one of multiple operators interrupts input work due to feeding, removing paper, taking a break, etc., this terminal will wait for input.
The reading operation of the OCR device may stop.

[Purpose of the invention]

An object of the present invention is to prevent the entire OCR system from stopping due to the presence of a terminal in a non-input state in the OCR system.

[Summary of the invention]

An output file for storing character reading results, a pattern buffer for storing scanning patterns corresponding to unreadable character codes in this output file, a plurality of unreadable character correction terminals, and a plurality of unreadable character correction terminals for each unreadable character correction terminal. means for detecting interruption and resumption of operator input; and means for replacing correction input from each unreadable character correction terminal with a corresponding unreadable character code in the output file; The object of the present invention was achieved by using an OCR system that is characterized by allowing input to be performed by selecting a terminal that is capable of input.

[Embodiments of the Invention] Examples of the present invention will be described in detail with reference to the drawings. Here, the figure is a block diagram showing an OCR device system. 1 is an OCR, 2 is an OCR controller, 3 is an output buffer that stores the reading results output to OCR 1, 4 is a pattern buffer that stores the original image of characters that OCR 1 cannot read, 5 is the original image of unreadable characters. Terminals for correcting unreadable characters (hereinafter referred to as correction terminals) are used for displaying and inputting corrections for unreadable characters by the operator. Reference numeral 6 is a detector for detecting interruptions in input from each correction terminal.

The operation will be explained below. First, data read by OCR 1 is stored in output file 3 via OCR controller 2. At this time, if there is an unreadable character, a reject code is temporarily output to the output file 3, and the original (scanning) pattern of the unreadable character corresponding to this code is temporarily stored in the pattern buffer 4. .

The OCR controller 2 has multiple correction terminals 5
Pattern buffer 4 on an empty terminal
Send the pattern inside and display it. Next, when correction characters are input from the correction terminal 5, the OCR
The controller 2 replaces the reject code in the output file 3 corresponding to the pattern displayed on the terminal with the code of the corrected character input from the terminal.

At this time, the OCR controller 2 monitors each terminal, and if the detector 6 sends a signal indicating interruption of input from the operator, that is, if there is no input for a certain period of time after receiving the reject pattern, or , when the operator disconnects the terminal by key input etc. and goes offline, or when a switch, photocell, etc. set on a chair etc. detects the absence of the operator, a reject pattern has already been sent. If there is, it is canceled and retransmitted to another terminal, and if it is the last transmission, the pattern is not transmitted to that terminal.

Here, when the input interrupt signal from the operator is released, that is, when the operator reconnects the terminal by key input etc., or when the aforementioned detector sends out a signal indicating the presence of the operator,
The OCR controller 2 sends reject patterns to these terminals.

〔Effect of the invention〕

According to the present invention, it is possible to prevent the operation of the OCR apparatus system from being interrupted due to a non-input state of the terminal due to the absence of an operator or the like.

[Brief explanation of the drawing]

The figure is a block diagram showing each part of the OCR device system. 1...OCR, 2...OCR controller (replacement means), 3...Output file, 4...Pattern buffer, 5...Unreadable character correction terminal, 6
...detector (means of detection).

Claims (1)

[Claims] 1. An output file for storing character reading results, a pattern buffer for storing scanning patterns corresponding to unreadable character codes in this output file,
a plurality of illegible character correction terminals, means for detecting interruption and resumption of operator input at each illegible character correction terminal, and means for detecting correction input from each illegible character correction terminal in the output file; An OCR system comprising means for replacing an unreadable character code, and selecting a terminal capable of inputting unreadable characters to correct the unreadable characters.