JP2924790B2 - Simple map creation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for creating a schematic map, and more particularly to a method for creating a simplified map based on a map image.

[0002]

2. Description of the Related Art Conventionally, when creating a schematic map, a line is drawn while confirming a distance, a direction, and the like on a map, or thinking by himself. In addition, a map is created by inputting a map with a scanner or searching a database to specify a target map. Further, Japanese Patent Application Laid-Open No. 5-142993 describes a method of creating a schematic map by inputting an address. It shows a method of automatically creating a map by searching a database for landmarks in map information around a destination when creating a schematic map.

[0003]

THE INVENTION Problems to be Solved] A first problem is in the prior art, in the case of drawing by hand or manual input, that lack kicking and the like on the accuracy on which it takes time to create. The reason is that, if the road is not straight, it takes a lot of time to accurately represent the shape and direction of the road, and it is extremely difficult to draw the curve as expected when manually inputting. That's why. The second problem is that, when an input is made using a scanner or a database, it is difficult to find points to the destination and the amount of data becomes enormous. The reason is that since the input map is used as it is, parts other than the necessary route are included, and the data amount of that part is added,
This is because the portion to be emphasized becomes difficult to show. The third problem is that the database records map landmark information,
There is a point that it is not possible to freely create a map by a method of automatically creating a schematic map based on this. The reason is that, since a dedicated database is required, it is difficult to obtain a map that one wants to output, such as a scale, and the path that one wants to show for automatic generation cannot be freely specified.
An object of the present invention is to simplify creation of a route map to a destination. It is another object of the present invention to create an accurate route map to a destination.

[0004]

According to the present invention, there is provided a simple map creation method for creating a schematic map based on input map information, comprising: a map reading means for inputting a map image; Map image storage means for storing, coordinate input means for designating a specific location of the map information, trajectory extraction means for extracting a trajectory input by the coordinate input means, and a portion where the trajectory matches the trajectory Matching information detecting means for detecting a path to be output from the trajectory detected by the matching information detecting means, an output image storing means for storing a path obtained by the path extracting means, Character input means for adding character information to the output image; display means for displaying the output image and the output of the character input means; and data output from the character input means. Simple mapping scheme and an outputting means for obtain.

Further, according to the present invention, there is provided a simplified map creation system for creating a schematic map based on input map information,
Map reading means for inputting a map image, map image storage means for storing the map information, landmark storage means for storing only landmarks from the map information, and coordinate input for specifying a specific location of the map information Means, a trajectory extraction means for extracting a trajectory input by the coordinate input means, a coincidence information detection means for detecting a portion where the trajectory coincides with the map information, and a trajectory detected by the coincidence information detection means. Path extraction means for extracting a path to be output; landmark detection means for extracting landmarks in a range included in the path obtained by the path extraction means from landmarks stored in the landmark storage means; Output image storage means for storing the path and landmark obtained by the extraction means, and a sentence for adding character information to the output image A simple map creation method is provided, comprising: input means; display means for displaying the output image and the output of the character input means; and output means for outputting data output from the character input means. .

[0006]

Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram for explaining a preferred embodiment of a simplified map creation system according to the present invention. The map reading means 1 is for inputting a map including a route to be indicated from a scanner or a map information database, and the map image storage means 2 stores the map information input by the map reading means 1. It is for. The coordinate input means 3 is for inputting coordinates and a locus from a mouse, a pen, and a tablet.
The trajectory extracting means 4 is for extracting the trajectory input by the coordinate input means 3. The coincidence information detecting means 5 is for comparing the coordinates of the road information with the coordinates of the input trajectory information to detect a coincidence or an error within an error range. The route extracting means 6 extracts map information around the detected point, and the output image storing means 7
This is for storing the route information extracted from all the input trajectories. The character input means 8 is for adding character information such as a place name to the extracted route. The display means 9 is for displaying the input map image and the created map for the creator himself to confirm, and the output means 10 is for outputting to a file or a printer.

FIG. 3 shows an embodiment of the present invention.
This will be described in detail with reference to FIG. FIG. 3 shows a flowchart of the simplified map creation method of the present invention. First, map information including a route to be output is input from a scanner and displayed on a screen (S
1), and the information is stored (S2). By tracing the tablet with the pen, a route that the user wants to show on the displayed map is input as a locus (S3), and only the locus is selected and extracted (S4). The coordinates are checked at regular intervals based on the input of the locus to the tablet, and the input coordinate values are stored. The coordinates of the locus are compared with the coordinates of the road to determine whether the locus input with the pen matches the road information input on the map (S5). As a result of the comparison, if it is determined that the locus coincides with the map information, map information within a certain distance from the matching pixel is extracted and stored (S6), and if it is determined that the locus does not match. The trajectory is not processed because an incorrect route is drawn. By repeating this process until all the trajectories in one screen are completed, the route map to be sought can be extracted from the map (S7), and character information such as auxiliary lines indicating the route and place names can be added to the route map. The figure is completed (S8).

Hereinafter, a more specific simplified map creation method will be described with reference to FIG. It is assumed that the map information input by the map reading means 1 is a map as shown in FIG. This is displayed on the screen, and FIG. 7 shows a trajectory traced on the tablet by the coordinate input means 3 using a pen. In this case, the user designates by tracing on a track or a road that is to be finally left in the route map. The trajectory traced is extracted by the trajectory extraction means 4 and the coincidence information detection means 5 determines whether the trajectory matches the coordinates on the map.

[0009] Considering the case of comparison as shown in FIG. 5, a single line is drawn on the map as EIMP, but the locus of pen input is DIML. -O. For example, if it is determined that the pixels up to the adjacent pixel match this time,
First, the pixel D checked by pen input is compared with the input map. Pixel C around pixel D of the input map information,
H, I, J, and E are compared as search targets. Then, since the pixels E and I are the checked pixels around the pixel D, the check of the pixel D is determined to be correct, and the candidate for matching is included. By performing this also for IMLO, coincidence information can be detected.

As a result of the above determination, if the pixel is a coincident pixel, map information within a certain distance from that point is extracted by the route extracting means 6. By performing this processing for all points obtained from the trajectory, a map as shown in FIG. 8 is obtained. Then, when the character input means 8 inputs an auxiliary line indicating a route, a place of a destination, and the like on the route map, the result is as shown in FIG. 9, and the creation of the route map is completed.

By tracing on the map as described above,
Since you can select the road you want to show, instead of outputting the entire area of the input map, you can create a map with reduced points. This operation will be described in detail. In order to extract only a necessary portion from the map information input from the reading device, the portion is designated with a pen or a mouse. Here, map information within a certain distance from the designated portion is selected. By outputting this information, a target map can be created.

Further, by using a map to which information for identifying a landmark serving as a landmark is added, a landmark can be automatically added to a map created by the above-described means. This operation will be described in detail. When the map information is input from the reading device, the landmark information is read at the same time. In order to extract only a necessary part from this map information, the part is designated with a pen or a mouse. Here, map information within a certain distance from the designated portion is selected. The landmark included in the selected map information is superimposed on the map information. By outputting this information, a target map can be created.

Referring to FIG. 2, another embodiment will be described in which landmarks are automatically detected and inserted into a schematic map by the simplified schematic map creation method of the present invention. Map image storage means 2, coordinate input means 3, trajectory extraction means 4, coincidence information detection means 5, character input means 8, display means 9, output means 1
0 is the same as in the description of FIG. Map reading means 1
This is for inputting a map including a route to be indicated from a scanner or a map information database. Information of a portion having a landmark identifier is also stored in the landmark storage means 11, and all information is stored in the map. Image storage means 2
Shall be recorded. The route extracting means 6 extracts map information around the detected point. The landmark detecting means 12 detects landmarks included in the range of the extracted information, and the output image storing means 7 , For storing information obtained by adding landmark information to the extracted route information.

FIG. 4 is a flowchart showing an embodiment in which landmarks are automatically detected by the simplified map creation method according to the present invention and inserted into a simplified map. The processing from S1 to S8 is the same as that shown in the flowchart of FIG. The landmark symbol is read from the map image information input from S2 and stored in another buffer (S9). If it is determined in the match determination (S5) between the map image and the input trajectory that they match, map information within a certain distance from the matching point is stored in an output buffer (S6).
If the landmark stored in S9 is within the stored range, the landmark is stored in the same buffer. This process is performed for all sections based on the input trajectory. A name is written for each landmark added here (S1
1), the process of adding a landmark to the route map ends.

[0015]

An embodiment of a more specific simplified map creation method will be described with reference to FIG. When a map image is read by the map reading means 1, only the landmark is stored by the landmark storage means. That is, as shown in FIG. 10, by inputting a map image in which the landmark symbol is previously determined to be “」 ”, an image obtained by extracting only the ◎ portion as shown in FIG. 11 can be obtained. This landmark has the origin at a specific point on the map, (10, 10): city hall;
(20, 10): It is assumed that coordinates and names are registered in advance like a library. Then, landmarks within the range of the map information stored by the route extracting means 6 are detected by the landmark detecting means 12. Referring to FIG.
The solid line represents the selected route, and the dotted line represents the map information stored in the route extracting means 6. Since the landmark A in FIG. 10 is off the route, it is deleted in FIG. When writing the selected landmark to the output buffer. The name is added and stored in the output image storage means 7 as shown in FIG. When landmark information is added to the route map obtained by the route extracting means 6 shown in FIG. 8, the result becomes as shown in FIG. The character input means 8
Then, when an auxiliary line indicating a route, a place of a destination, and the like are input, the result is as shown in FIG. 15, and the creation of the route map is completed.

[0016]

A first effect is that a route map to a destination can be created without requiring a special database. As a result, a route map can be created from any map. The reason is that it is only necessary to follow the path that the user wants to show on the input map, and a special map for input is not required. The second effect is that a part irrelevant to the route that the user wants to show can be deleted. This makes it possible to create a map that is easier to see than the entire map. The reason is that you can specify only the necessary parts on the map, so that you can delete extra information. A third effect is that a route map containing the names of landmarks can be created. This makes it possible to create a route map in which the landmarks are clearly shown.

The reason is that a landmark included in a route map is automatically extracted by using a map provided with a landmark identifier as an input map, and is added to the route map.

[Brief description of the drawings]

FIG. 1 is a block diagram for explaining an embodiment of a simplified map creation method according to the present invention.

FIG. 2 is a block diagram for explaining another embodiment of the simplified map creation method according to the present invention.

FIG. 3 is a flowchart illustrating an embodiment of a simplified map creation method according to the present invention.

FIG. 4 is a flowchart for explaining another embodiment of the simple map creation method according to the present invention.

FIG. 5 is a diagram illustrating a method of obtaining a locus that matches a map in the simple map creation method according to the present invention.

FIG. 6 is an original image of a map for showing map information in the simple map creation method according to the present invention.

FIG. 7 is a diagram when the user traces on a map to show the locus of a route in the simple map creation method according to the present invention.

FIG. 8 is a diagram when the area around the portion traced on the route in FIG. 7 in the simplified map creation method according to the present invention is extracted.

FIG. 9 is a diagram when the area around the upper part of FIG. 8 of the simplified map creation method according to the present invention is extracted and characters are added.

FIG. 10 is a diagram for explaining landmark detection for explaining an embodiment of a simplified map creation method according to the present invention.

FIG. 11 is a diagram in which only the landmarks of FIG. 10 are extracted by the simple map creation method according to the present invention.

FIG. 12 is a diagram for explaining selected routes and landmarks of FIG. 10 in the simplified map creation method according to the present invention.

FIG. 13 is a diagram in which character information is added to the landmark of FIG. 12 in the simplified map creation method according to the present invention.

FIG. 14 is a diagram in which landmark information is added to FIG. 8 in the simplified map creation method according to the present invention.

FIG. 15 is a diagram for explaining a route diagram of the simplified map creation method according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Map reading means 2 Map image storage means 3 Coordinate input means 4 Locus extraction means 5 Matching information detection means 6 Route extraction means 7 Output image storage means 8 Character input means 9 Display means 10 Output means 11 Landmark storage means 12 Landmark detection means

Claims (2)

(57) [Claims] 1. A simplified map creation method for creating a schematic map based on input map information, comprising: a map reading means for inputting a map image; a map image storage means for storing the map information; Coordinate input means for designating a specific location of information; trajectory extraction means for extracting a trajectory input by the coordinate input means; coincidence information detection means for detecting a part where the trajectory coincides with the map information; Path extraction means for extracting a path to be output from the trajectory detected by the coincidence information detection means; output image storage means for storing the path obtained by the path extraction means; and characters for adding character information to the output image Input means; display means for displaying the output image and the output of the character input means; and output means for outputting data output from the character input means. Simple map creation method to be used. 2. A simplified map creation method for creating a schematic map based on input map information, comprising: a map reading means for inputting a map image; a map image storage means for storing the map information; A landmark storage unit that stores only landmarks that serve as landmarks on a map of a building or the like from information, a coordinate input unit that specifies a specific location of the map information, and a locus input by the coordinate input unit are extracted. Trajectory extraction means, coincidence information detection means for detecting a part where the map information and the trajectory coincide with each other, path extraction means for extracting a path to be output from the trajectory detected by the coincidence information detection means, and said path extraction Landmark detection means for extracting landmarks in a range included in the route obtained by the means from the landmarks stored in the landmark storage means; Output image storage means for storing the path and landmark obtained by the step, character input means for adding character information to the output image, display means for displaying the output image and the output of the character input means,
An output unit for outputting data output from the character input unit.