JPS60157644A - Filing device - Google Patents

Abstract

PURPOSE:To prevent successively the deterioration of a picture by replacing other part than that which is retouched and corrected, with an original picture, in a device for executing an electronic filing. CONSTITUTION:When a proper name of a file is known by designating a retrieval mode from a controlling terminal and fixing a request document, necessity for summing a picture of the same file and a picture of other file from a data base 1000 is known, therefore, the two file picture are read out and written in a picture memory 200. When two pictures 212, 213 are superposed, a picture 211 is obtained, and the picture 211 is displayed on a display 700. In such a way, the deterioration of a picture caused by repeating an input and an output can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a filing device having a function of electronically filing document information and the like.

[Background of the invention]

In recent years, with the development of large-capacity storage devices such as optical disks,
Efforts are being made to electronically store large amounts of image information such as documents to solve the problems associated with paper filing.

However, when document images are filed electronically using conventional technology, the cycle of creating a hard copy of the filed document, making additions, and converting it into an electronic file is repeated many times. The drawback is that the image quality gradually deteriorates due to noise.

In addition, when filing documents, etc., each person adds different comments to the distributed materials, so
Individuals often store a large number of duplicate files. This is also the case with prior art electronic filing, which has the disadvantage that document images of the same type are stored redundantly, resulting in the use of extra file space.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a filing device that eliminates the above-mentioned drawbacks, does not cause image deterioration even after repeated input/output, and does not require multiple storage of documents of the same type.

[Summary of the invention]

The basic idea of the present invention to achieve the above object is that when inputting a document image that has been added or modified, the original image that is the source is in the file (3); All parts other than the modified parts are replaced with the original image. This can prevent image deterioration due to repeated input/output.

To do this, it is necessary to separate the parts that match the original image and the added/corrected parts as images, but this can be achieved by superimposing the original image and the re-input image. .

Furthermore, if the added/corrected portion can be separated in this way, it becomes possible to electronically store this portion in a separate file. In general, the number of additions and corrections is small compared to the total amount of information, so many people make various additions (comments, opinions, etc.) to one document.

(underlining, etc.), there is no need to store the original information multiple times, and the overall storage capacity can be reduced. In other words, to put it the other way around,
It becomes possible to personalize files without significantly increasing the amount of stored information.

[Embodiments of the invention]

(4) The present invention will be explained below based on examples.

FIG. 1 is a block diagram of an embodiment of a filing device according to the present invention. The device is a CPU that controls the entire system.
l01 control terminal 50, data main memory 100, image memory 200, file management database 1000,
A large-capacity optical disk file for images 2000, a scanner 600 that photoelectrically converts images on paper, and a preprocessing circuit 650 that performs preprocessing (binarization, etc.) of image signals obtained by the scanner.
, a high-definition display 700 that displays images retrieved from the optical disk file 2000, and a control port for the same display [750], an image printer (laser beam printer) 800 that also searches and prints images, and a control circuit 850 therefor; , a difference extraction circuit 300 that extracts the difference between the two images in the image memory 200 as a new image, a superimposition circuit 400 that creates a new image by superimposing the two images in the image memory 200, and an image memory. A character recognition circuit 500 recognizes a character image in a designated portion of the image memory 200, and further recognizes a character image (
5) It consists of an image processing circuit 900 that performs encoding/decoding and compressing and decompressing information.

This device will be explained along the flow of its main operations and information storage/retrieval.

First, the storage method will be explained. The user specifies the storage mode on the control terminal 50 and sets the document to be scanned and input into the scanner 600. By pressing the start button on the scanner 600, the image on the document is transferred to the scanner 600.
After being photoelectrically converted in , it is subjected to predetermined preprocessing in a preprocessing circuit 650 and stored in the image memory 200 . CPU10
information about the document (2) according to a predetermined program.
(referred to as next information) to the user through the terminal 50, and the response is temporarily stored in the memory 100. Specifically, secondary information includes the title of the document, keywords, date of creation, author,
Includes document major classification, medium classification, small classification, etc. Similarly, after the process of confirming the above-mentioned secondary information through the terminal 50, the secondary information is stored in the database 1000 and in the image memory 200.
The document image within is stored in the optical disk file 2000 through information compression by encoding in the image processing port v4900 (6).

The flow of operations in the normal accumulation mode is as described above.

Next, the search method will be explained. When the search mode is specified on the control terminal 50, the CPU 10 requests the user to input fragmentary information regarding the requested document according to a predetermined program. When the user inputs fragmentary information (for example, a keyword) through the terminal 50, the CPU 1
Database 1 contains secondary information that matches the same information as 0.
000 and select candidates (generally multiple) from the terminal 50.
(for example, the title of a candidate document). When there are multiple candidates, the user can either add more information or select one of the displayed candidates.

When a document is selected in the above process, the document image is read from the optical disk file 2000, decompressed (decoded) by the image processing circuit 900, and then stored in the memory 2000.
0, it can be further displayed on the high-definition display 700, or it can be made into a hard copy using the printer 800 (7).

Now, FIG. 2 shows the formation of a notebook copy 810 that is output by the printer 800. As shown in the figure, straight line marks 821 and 822 are printed at the top and bottom, respectively, and the file unique name 831 is printed at the top, and the date and time 832 when the file was registered at the bottom, as well as the same. Note) - The date and time 833 when the copy was created are printed over the search document image. Here, the file unique name 831 is the file station unique name (number)
VX consists of XXX and file unique name (number) NN...N within the same file station.

Further, the lengths and positions of the straight line marks 821 and 822 are fixed to predetermined values, and can be used for purposes such as correcting re-input images.

Now, as a first embodiment of the present invention, a hard copy re-input process with additions will be described.

The user specifies the re-input accumulation mode starting from a fraction of 50. The process from photoelectrically converting the image with additions using the scanner 600 to reading the same image into the memory 200 is the same as the normal accumulation mode described in (8) above. FIG. 3 schematically depicts the image data in the image memory 200.
Image 211 is the one that was re-input.

In the re-input accumulation mode, the following processing is performed under the control of the CPU 10, which operates according to a predetermined program. First, the character recognition circuit 500 converts the image 211 in the memory 200 into an image of the file specific name (83 in FIG.
1) is taken as the cutout image 215. As mentioned earlier,
Since the printed position of the file unique name etc. is known to the file device, it is easy to find the straight line mark 821, taking into account positional deviations caused by scanners, etc., and then extract the file unique name part using the same mark. Can be done.

Character recognition circuit 500 then cuts out individual character patterns from image 215, recognizes each character, and stores the results at a predetermined address in memory 100.

Since the above character recognition method can be easily realized within the scope of the prior art, detailed explanation will be omitted (9). (Reference materials: “Introduction to Character Recognition”, edited by Shinichi Hashimoto,
Telecommunications Association, Ohmsha] 982) The CPUIO receives the character recognition end signal 10, reads the recognition result in the memory 100, and learns the unique file name of the original document. By searching the database 1000 for the same name, the address of the same file on the optical disc 2000 can be found. Therefore, the original document image is then read out from the optical disc 2000 and decoded, and then the image 212 in FIG. 3 is obtained.

Next, the CPU 10 sends a command to the different part extraction circuit 300 to extract the different part between the two images 211 and 212 as an image, and use it as an image 213.

FIG. 4 is a more detailed functional block diagram of the difference extraction circuit 300. In the figure, a circuit 310 is a read/write circuit for sequentially reading image data from the image memory 200 in a predetermined order and sequentially storing the results of processing described later in the same memory. The circuit 320 is a buffer circuit that extracts 3×3 neighboring pixels of the image 212 via the circuit 310 and temporarily stores them. The circuit 330 is the above 3×3
(10) It is an OR circuit that takes the logical cloth (OR) of neighboring pixels,
The output signal is provided to a logical NOT (NOT) circuit 340, resulting in signal 311 being produced. The same signal 311 is image 21
2 is processed thicker and further logically negated. The signal 312 is a bit string of each pixel of the image 211, and the logical product (AND) with the signal 311 is taken by the AND circuit 350, and the signal is supplied as a signal 313 to the noise removal circuit 360. The noise removal circuit 360 extracts two-dimensional 3×3 neighboring pixels from the signal 313, and removes fine noise by processing to change the center pixel 1, where all neighboring pixels are 0, to O. The noise-removed image signal is written into image memory 200 by circuit 310 and stored as image 213 in FIG.

As a result of the above processing, the re-input image 211 becomes the original image 21.
2, and the added portion 211D can be extracted as the image 213.

Next, the CPU10 transfers the image 213 to the image processing circuit 900.
The information is compressed (encoded) using data (11) 214 (Fig. 3). The image encoding method can be easily implemented using conventional technology (reference: Takahiko Fukinuki, "Image Signal Processing", Nikkan Kogyo Shimbun, 1982), so detailed explanation will be omitted.

The CPU 10 then informs the database 100 that the re-input image is the sum of the original document image 212 and the difference image 213.
At the same time as writing to 0, a unique file name is given to the same re-input image. Next, the secondary information of the re-input document is added to the database 1000, and the data 214 (actually encoded) is stored on the optical disc 2000 using a procedure similar to the procedure in the normal storage mode described above.

With the above processing, the re-input processing ends.

Next, the operation of searching and displaying the re-input document image as described above will be explained.

First, the user specifies the search mode from the control terminal 50, inputs fragmentary information regarding the requested document (in this case, a re-input document), and fixes the requested document, as described above. Internally, CPU10 fixes the unique file name of the document (12).

Once the unique file name is known, it can be determined from the database 1000 that the image of the same file needs to be summed with the images of other files. Therefore, the images (information compressed) of these two files are read from the optical disk 2000, subjected to decompression (decoding) processing by the image processing circuit 900, and written to the image memory 200. For example, images 212 and 213 in FIG. 3 are displayed. Next, the above two images are superimposed by the superimposition circuit 400 (logical OR of each pixel is taken) to obtain the image 211 shown in FIG.

(Here, Figure 3 is used for a different explanation from the purpose used earlier, and the images 211°, 212.
213 is actually different from the image referenced earlier.

) Subsequently, the image 211 is displayed on the display 700.

As described above, it appears to the user that a single image has been searched and displayed in a completely normal manner.

Next, a second example, which is an extension of the first example, will be described.

(13) In the first embodiment, the different portion extraction circuit 300 (FIG. 1) had the function of extracting the image 213 of the added portion 211D, but this can be extended to extract the erased portion. .

FIG. 5 is a functional block diagram of an embodiment of the expanded difference extraction circuit 300.
, 355, 365 are the circuits 310, 32 in FIG.
They correspond to 0, 330, 340, 350°360, respectively, and have the same functions. In addition, circuits 346, 356, 366
have the same function as the circuits 345°, 355, and 365, respectively. That is, the signal 301 is a signal representing the added portion of the image 213 as in the previous embodiment. On the other hand, signal 302
is an image signal obtained by extracting only the erased portion of the original document.

In this way, in the expanded second embodiment.

The re-input document image is decomposed into three images: the original document image (the image corresponding to 212 in Figure 3), the added partial image (the image corresponding to 213 in Figure 3), and the erased partial image. Ru. As before, there is no need to re-store the original document image (14), so only the latter two images need to be stored. The procedure for registering and storing files as a file can be easily inferred from the first embodiment, so a description thereof will be omitted.

Further, the image superimposition circuit 400 in the second embodiment performs a logical negation on the erased partial image, and then performs a logical AND on the superimposed original image and added partial image to determine the corresponding portion. It may be configured to have a function to erase the . The specific circuit configuration can be easily deduced using the techniques of those in the same industry, so a description thereof will be omitted.

In the explanation of the embodiments so far, it has been assumed that a re-input document is an addition to a hard copy of the original document, but a re-input document is an addition to a document that has already been added at least once and is stored. It may be a document. In other words, even if it is found from the unique file name of the re-input document that an image in the same file should be superimposed with an image in another file, the image after superimposition and the re-input All you have to do is extract the parts that differ from the document. Therefore, (1
5) By overlapping multiple times, it is possible to handle re-input documents that have been added several times.

Further, the input document may not be a hard copy with additions, but may be an addition to another original document. In this case, if a copy of the original document exists, the copy is registered and stored first, and then the added document is input in the re-input storage mode. At this time, since the file unique name is not printed on the added document, the user can input the file unique name of the previously registered copy of the original document from the terminal to make the added document. You will need to separate and extract the parts and file them separately.

The apparatus according to the invention allows the principles of the invention to be extended to be applicable to automatic document modification. As a conventional technique, there is a technique of adding proofreading marks to a certain manuscript, recognizing the marks, and correcting or transcribing them. For example, literature: Nagura, Suenaga "Automatic transcription system for handwritten drawings using facsimile".

11th Image Engineering Conference, 1980. Conventionally (16), proofreading marks on a manuscript were recognized by writing the proofreading marks on a separate sheet of paper from the original, or by allowing only unique proofreading marks with a closed loop.

When the principle of the present invention is applied, the added parts are automatically extracted from the original image or copy of the original already stored in the file device and the document that has been proofread and added, and automatic proofreading and automatic cleanup are possible using ordinary techniques. It is. Furthermore, by using the image within the file as the image to be calibrated at this time, deterioration in image quality can be prevented. As described above, according to one aspect of the present invention, a filing device having an automatic calibration function can be realized.

Furthermore, according to the principles of the present invention, even in a filing device that has a terminal that allows interactive additions, added parts can be separated and stored, and new document information can be stored without storing overlapping parts. can be managed. Such terminals include computers with bitmap displays and on-line input of handwritten figures (17) by means of tablets or mice. Using such a computer as a terminal or control device, handwritten figures input online (additional comments, underlines, etc.) are separately filed as addition information for the displayed document, and document information with new additions is displayed. can be registered as the sum of the same file and the file that holds the original document information.

At the time of search, these two pieces of file information are superimposed, as described above. According to the present invention, such an online filing device can also be realized.

〔Effect of the invention〕

As explained above, the present invention solves the drawback that even when a hard copy of a document is repeatedly added to and re-entered after filing, the image quality gradually deteriorates due to quantization noise during photoelectric conversion. It can be eliminated.

Furthermore, by automatically separating and extracting the added/edited parts and additionally storing only the same parts, the storage capacity can be significantly reduced (18) when there are many added/edited documents. Further, due to this effect, even if personal comments, opinions, underlines, etc. are added to the shared document, the storage capacity hardly increases, so that the shared document can be personalized, which is highly effective.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a file device according to an embodiment of the present invention, Fig. 2 is a diagram showing an example of a hard copy format printed out by the same device, and Fig. 3 is an example of image arrangement in the image memory. FIG. 4 is a block diagram of an embodiment of the difference extraction circuit, and FIG. 5 is a block diagram of an expanded embodiment of the difference extraction circuit. (19) Figure 2 Figure 3

Claims (1)

[Scope of Claims] 1. Separation means for separating a corrected partial image from a corrected document image, a first storage means for storing the document image before correction, and a second storage means for storing the corrected partial image. A filing device comprising: storage means; and management means for managing images stored in the first and second storage means. 2. The separation means includes an extraction means for extracting a corrected partial image from the document image stored in the first storage means and an image obtained by correcting a hard copy of the document image. The filing device referred to in paragraph 1. 3. The filing according to item 1, wherein the management means includes means for associating the images stored in the first and second storage means, and output means for outputting the associated images in a weighted manner. Device. (1) 4. The management means recognizes information recorded on the document image regarding the storage means in which the document image is stored and determines the storage means in which the document image is stored. 2. The filing device according to claim 1, further comprising means. 5. The filing device according to item 3, wherein the output means comprises a printer that prints out information regarding the storage means in which the document image is stored together with the document image.