JPH0721343A - Image input device - Google Patents

Abstract

PURPOSE:To provide an image input device for inputting, for instance, image information of a space map, etc., as data to execute a deviation correction processing at a high speed, even in the case image size to be inputted is large without dealing with all input data at the time of correcting a deviation. CONSTITUTION:This device is constituted so that the map data consisting of, for instance, two pages divided and inputted by an image scanner 15 is divided into a prescribed width area containing a boundary of each page data required for correcting its boundary deviation and other area as correction necessary map data X1, X2 and correction unnecessary map data Y1, Y2 respectively and stored in a pre-correction map data storage part 19, only the correction necessary map data X1, X2 are read out into a correction memory 22 and displayed on a display part 16, and subjected to a deviation correction by moving the map data X2 of the other page based on the map data X1 of one page as a reference, and this corrected map data is synthesized with the correction unnecessary map data Y1, Y2 and stored in an operation map data storage part 21, thus one piece of map data is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image input device used for inputting image information such as a map drawn on paper as data for a computer.

[0002]

2. Description of the Related Art FIG. 4 is a diagram showing a transmission line map drawn on a paper surface. That is, in order to input the transmission line map shown in FIG. 4 as map data that can be processed on a computer, first use a cutter or the like to a size (for example, A1 size) that can be input by the image scanner. Cut and divide.

FIG. 5 is a diagram showing a state in which the power transmission line map is cut into a size that can be input by a scanner. FIG. 5A shows the first page thereof, and FIG. 5B shows its second page. It is a figure which shows an eye.

The divided transmission line map on the first page and the transmission line map on the second page are optically read sequentially by an image scanner and stored in the image memory as one piece of map data. After that, it is stored in a magnetic disk or the like.

Here, the image reading range of the image scanner and the writing range of the image data in the image memory have a one-to-one correspondence, and the arrangement position of the power transmission line map is within the image reading range of the image scanner, for example. When the map data is vertically displaced, the storage position of the map data in the image memory is also vertically displaced within the writing range.

Therefore, if the position of the power transmission line map on the first page and the power transmission line map on the second page are not correctly aligned with respect to the image scanner, they are edited as one map data on the image memory. In this case, for example, a vertical shift occurs at the boundary between the first map data and the second map data.

FIG. 6 is a diagram showing a boundary shift when the above power transmission line map is divided and input by a scanner. like this,
Boundary misalignment due to divided reading of the paper map, manual placement of the paper map to the image scanner,
In most cases, the roller is wound by the rotation of the roller.

Therefore, for example, when a boundary shift of the power transmission line map shown in FIG. 6 occurs, the map data stored in the image memory is displayed on the display screen and
After the boundary portion of the displayed map data is displayed by scrolling the screen, the boundary data is corrected by moving the map data of the other page in the vertical direction with reference to the map data of one of the pages. I am doing it.

In this case, all the map data of page 1 and page 2 are written in the image memory for correcting the deviation, and for example, the map data of page 2 is used as a reference for map data of page 2. At the time of the vertical movement operation, the entire map data of the page 2 is moved and rewritten on the image memory.

[0010]

Therefore, there is no problem if the size of the paper map to be originally input is small and the amount of data handled in the memory is small, but a large map that requires the A1 size image scanner or the like. Then
There is also a problem that a large amount of data is dealt with at the time of correcting the deviation, which requires a long time for the data movement rewriting process on the memory.

The present invention has been made in view of the above problems,
An object of the present invention is to provide an image input device capable of performing shift correction processing at high speed without the need to handle all input data even when the image size to be input is large.

[0012]

That is, the image input apparatus according to the present invention is an image scanner in which one image information is divided into a plurality of pages and sequentially read, and image information of each page read by the image scanner. Input image dividing means for dividing a constant width area including the boundary portion as correction required image data and other areas as correction unnecessary image data, and correction required image data divided by the input image dividing means. And a correction-unnecessary image data, and a deviation for correcting the boundary deviation between each page based only on the correction-required image data of each page image information stored in the uncorrected data storage The correction means and the pre-correction data memory for the correction-required image data of each page image information after the deviation correction by the deviation correction means It is constructed by a modified image data generating means for synthesizing the corrected unnecessary image data stored in the.

[0013]

That is, even when large image information that requires an A1 size image scanner is divided and input,
The amount of data handled when correcting misalignment does not increase,
It does not require a long time for the data movement rewriting process on the in-computer memory and the high-speed image information input process can be performed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a map data input device embodying the image input device of the present invention.

This map data input device includes a control unit 11 including a CPU (central processing unit) and the like, and a program storage unit 1 including a ROM or the like in which a system program of this device and a map data input processing program are stored in advance.
2, the operation of each part of the apparatus is controlled. The control part 11 includes a key input part 13, a mouse 14, an image scanner 15 and a CRT in addition to the program storage part 12.
A display unit 16 and a display memory (RAM) 17 are connected, and an input map data storage unit 18 using a magnetic disk or the like, a pre-correction map data storage unit 19, a post-correction map data storage unit 20, and an operational map data storage unit. The unit 21 and the correction memory (RAM) 22 are connected.

The key input unit 13 is for inputting various data and commands relating to map data input processing by a user operation, and a key input signal from the key input unit 13 is supplied to the control unit 11.

The mouse 14 is used for designating an icon or the like displayed on the display unit 16 in the process of correcting the deviation after the scanner input of the paper map, for example. The operation signal from the mouse 14 is controlled. It is supplied to the section 11.

The image scanner 15 includes, for example, an optical image sensor having a maximum size of A1 and reads a map drawn on a paper surface as digital image data. The map data read by the image scanner 15 is controlled. It is stored in the input map data storage unit 18 via the unit 11.

The display unit 16 displays the display data written in the display memory 17 via the control unit 11, and the display memory 17 includes the input map data storage unit 18 and the correction data. The map data stored in the previous map data storage unit 19, the corrected map data storage unit 20, the operational map data storage unit 21, and the correction memory 22 are selectively displayed on the control unit 11 as display target data as needed. It is read and written.

In the input map data storage unit 18, the map data divided and input, for example, in A1 size by the image scanner 15 is paged and stored. For example, when the map data for two pages is input to the before-correction map data storage unit 19, the map data on the first page and the map data on the second page have boundary portions necessary for correcting the deviation. It is divided into a constant width area that includes the area and another area that is unnecessary for correction of misalignment, and is stored.

In the post-correction map data storage unit 20, the map which is deviated and corrected only in a constant width region necessary for correction in each page of the map data divided and stored in the pre-correction map data storage unit 19 is stored. The data is stored.

The operational map data storage unit 21 stores the pre-correction map data storage unit 19 with respect to the map data of the page width fixed width regions after the misregistration stored in the post-correction map data storage unit 20. The map data stored as an area unnecessary for correction is combined and can be actually operated.
It is stored as a piece of map data.

Next, the operation of the map data input device having the above configuration will be described. FIG. 2 is a flowchart showing a map data input process in the map data input device.

That is, for example, when a power transmission line map drawn on the paper surface as shown in FIG. 4 is given, as shown in FIG.
Image scanner 15 for the map on page 2 and the map on page 2
The map image data of the first page and the map image data of the second page input by the image scanner 15 are stored in the input map data storage unit 18 and written in the display memory 17. , Display unit 16
Is displayed (steps S1 to S3).

In this case, the display section 16 displays a partial area of the map image data over two pages stored in the input map data storage section 18 because of the displayable range, and the key input section 13 or In response to the scroll operation of the display screen by the mouse 14, an arbitrary image area is scrolled and displayed.

Here, the key input unit 13 or the mouse 1
4 is operated by the user, the map image data displayed on the display unit 16 is displaced as a map data necessary for correction by deviating a fixed width region including the boundary of each page, and deviating other regions. When the map data unnecessary for correction is designated as divided, each page map image data stored in the input map data storage unit 18 is divided according to each designated division area and transferred to the before-correction map data storage unit 19 for storage. (Steps S4 to S6).

FIG. 3 is a diagram showing a division state of the before-correction map image data stored in the before-correction map data storage section 19 of the map data input device. That is, in the map data on the first page and the map data on the second page, the map data X1 and X2 need to be corrected in a constant width area including the boundary portion where the misregistration is necessary, and the map data Y need not be corrected in the other areas.
1 and Y2 are divided and stored in the before-correction map data storage unit 19.

Then, the before-correction map data storage unit 19
Only the correction required map data X1 and X2 stored in the controller 1
1 is stored in the correction memory 22 and is also written in the display memory 17 and displayed on the display unit 16 (step S7).

In this case, the above-mentioned correction required map data X1, X
Since 2 is composed of a much smaller amount of data than the entire map data stored in the input map data storage unit 18, the memory capacity of the correction memory 22 can be very small. .

In this way, the key input section 13 or the mouse 14 is operated while only the map data X1 and X2 requiring correction of the page map data are displayed.
When the boundary shift between the map data X2 and the map data X2 is corrected with reference to 1, the storage position of the map data X2 on the correction memory 22 is moved and rewritten according to this correction operation (step S8).

In this case, the map data whose storage position is moved and rewritten on the correction memory 22 is X2,
Since the amount of data to be handled is very small, the writing position moving process can be performed at high speed.

Then, the correction-needed map data X1 and X2 in which the boundary shift is corrected on the correction memory 22.
The corrected map data consisting of is transferred to and stored in the corrected map data storage unit 20 (step S9).

The corrected map data storage unit 20 is then provided.
When the corrected map data consisting of the above-mentioned correction required map data X1 and X2 is stored in, the corrected map data X1
, X2 corresponding to correction-free map data Y1 and Y2, respectively, are read out from the uncorrected map data storage unit 19 and combined, and stored in the operational map data storage unit 21 (step S10).

As a result, the operational map data storage unit 2 is
In 1, the map data of the first page and the map data of the second page, which are input by the image scanner 15, are corrected by shifting the boundary portion between them to obtain one piece of map data.

Therefore, according to the map data input device having the above-mentioned configuration, the map data consisting of, for example, two pages divided and input by the image scanner 15 is a constant width region including the boundary of each page data necessary for correcting the boundary deviation. And the other regions are divided into correction-required map data X1 and X2 and correction-unnecessary map data Y1 and Y2, respectively, which are stored in the pre-correction map data storage unit 19, and the correction-required map data X
Only 1 and X2 are read out to the correction memory 22 and displayed on the display unit 16 through the display memory 17, and the correction required map data X2 of the other page is moved and shifted with reference to the corrected required map data X1 of one page. After correction, the corrected map data is combined with the correction-free map data Y1 and Y2 read from the before-correction map data storage unit 19 and stored in the operation map data storage unit 21, and the map data consisting of the above two pages. Since the deviation is corrected and obtained as one piece of map data, even if a large map requiring the A1 size image scanner 15 is divided and input, for example, the amount of data handled when correcting the deviation does not increase, and the above correction is performed. A long time is not required for the data movement rewriting process on the memory 22, and a high-speed map data input process can be realized.

In the above embodiment, the case where the paper map divided into two pages is input has been described. However, the number of divided pages is not limited to two pages, and in the case of more than that, the point is that each page is important. It is only necessary to divide and extract a fixed width area including the boundary portion as map data requiring correction, perform shift correction with a small amount of data, and then combine the divided portions that do not require correction. Further, it goes without saying that the image information to be input is not limited to the map but can be similarly processed in a design drawing or the like.

[0037]

As described above, according to the present invention, an image scanner in which one piece of image information is divided into a plurality of pages and sequentially read, and each page image information read by this image scanner has its boundary portion. An input image dividing unit that divides a constant width region including the image as correction-necessary image data and divides the other region as correction-unnecessary image data,
Pre-correction data storage means for storing the correction-required image data and correction-unnecessary image data divided by the input image dividing means, and only the correction-required image data for each page image information stored in the pre-correction data storage means Deviation correction means for correcting the boundary deviation between the respective pages based on the above, and the correction stored in the pre-correction data storage means for the correction required image data of each page image information after the deviation correction by the deviation correction means. Since the correction image data generation means for synthesizing unnecessary image data is provided, even if the image size to be input is large, it is not necessary to handle all the input data when correcting the shift, and the shift correction process can be performed at high speed. Will be possible.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a map data input device according to an embodiment of an image input device of the present invention.

FIG. 2 is a flowchart showing a map data input process in the map data input device.

FIG. 3 is a diagram showing a division state of pre-correction map image data stored in a pre-correction map data storage unit of the map data input device.

FIG. 4 is a diagram showing a power line map drawn on a paper surface.

5A and 5B are diagrams showing a state in which the power transmission line map is cut into a size that allows scanner input, FIG. 5A showing a first page thereof, and FIG. 5B showing a second page thereof. FIG.

FIG. 6 is a diagram showing a boundary shift when the power transmission line map is divided and input by a scanner.

[Explanation of symbols]

11 ... Control unit, 12 ... Program storage unit, 13 ... Key input unit, 14 ... Mouse, 15 ... Image scanner, 16 ...
CRT display unit, 17 ... display memory, 18 ... input map data storage unit, 19 ... pre-correction map data storage unit, 20 ... post-correction map data storage unit, 21 ... operational map data storage unit,
22 ... Memory for correction.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location 8420-5L 15/66 470 J

Claims (1)

[Claims] 1. An image scanner in which one piece of image information is divided into a plurality of pages and sequentially read, and image data of each page read by the image scanner, a fixed width area including a boundary portion thereof, and image data requiring correction. An input image dividing means for dividing the other area into correction-free image data and an uncorrected data storage means for storing the correction-necessary image data and the correction-unnecessary image data divided by the input image dividing means. A deviation correcting means for correcting the boundary deviation between the respective pages based on only the image data required for correction of each page image information stored in the pre-correction data storage means, and each page after the deviation correction by the deviation correcting means Corrected image data for each piece of image information to be corrected is combined with the uncorrected image data stored in the pre-correction data storage means. An image input apparatus characterized by comprising an image data generation unit.