JP2014164460A - Guidance point setting device, method, computer program for setting guidance point and recording medium recording computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guidance point setting device for setting a point suitable for a guidance based on location information of a picked-up image and a method thereof.SOLUTION: The guidance point setting device includes an imaging information storage part (3) for storing metadata including imaging location information corresponding to picked-up image data. A metadata selection part (5) selects metadata having imaging locations adjacent to each other on the basis of the stored imaging location information, and a guidance point setting part (9) sets a guidance point on the basis of imaging location information of the metadata selected.

Description

  The present invention relates to a guidance point setting apparatus and method for setting a point suitable for guidance based on position information of a captured image.

In recent years, in conjunction with the spread of mobile terminal devices such as smartphones, development of applications for the purpose of providing guide points such as sightseeing spots to users has been widely performed. In such an application, guide points are generally set based on facility location information and field surveys.
As a technique related to the above, for example, based on a walking sensor such as an acceleration sensor provided in a mobile terminal device, it is detected that a transition from a moving state to a stopped state is detected, and the moving body at the position where the transition is made to the stopped state A technique is disclosed that can objectively and accurately grasp and provide a place where many people are interested by specifying the number of individual terminal devices (Patent Document 1).
Reference should also be made to US Pat.

JP 2007-1149888 A JP 2004-212131 A

The present inventors have intensively studied to automatically collect guide points provided by the application. As a result, I noticed the following points.
For example, when a tourist or the like takes a picture of a tourist attraction or historic site, the photograph is often taken from a place where the landmark or historic spot can be seen better or a place where the landmark or historic spot looks better. Accordingly, attention has been paid to the imaging position information associated with the captured image data, and it has been conceived that the point where the imaging positions are concentrated is set as a guide point.

The present invention has been made in view of the above-mentioned problems, and the first aspect is defined as follows. That is,
An imaging information storage unit that stores metadata including imaging position information corresponding to the captured image data;
A metadata selection unit that selects metadata in which the imaging positions are close to each other based on the imaging position information;
A guidance point setting unit for setting a guidance point based on the imaging position information of the selected metadata;
A guide point setting device.

According to the guidance point setting device of the first aspect defined as described above, the points where the imaging positions are close to each other are set as the guidance points based on the imaging position information corresponding to the captured image data. According to such setting of guide points, it is possible to automatically set guide points. In addition, the points where the imaging positions are close to each other, that is, the points where the imaging positions are concentrated are points where many tourists or the like are shooting some kind of sight. Therefore, the point is considered to be a point suitable for guiding the user.
The imaging position information may be information indicating the position where the captured image is captured. For example, position information automatically given to the captured image data at the time of imaging, or manually associated with the captured image data. For example, position information.
The metadata is information indicating the attribute of the captured image data, in addition to the imaging position information, a tag indicating the content of the captured image data such as a captured facility name, the captured direction, the zoom rate, the date and time, Information on the day of the week, weather, etc.

The second aspect of the present invention is defined as follows. That is,
In the guidance point setting device defined in the first aspect, the metadata includes a tag indicating the content of the captured image data,
A name assigning unit that assigns a name corresponding to the set guide point based on the tag of the selected metadata;
According to the guidance point setting device of the second aspect defined as described above, the name of the set guidance point is given based on the metadata tag selected by the metadata selection unit. As described above, the metadata tag indicates the contents of the captured image data such as the name of the captured facility. By using such a tag, a name suitable for the guidance point can be given. In addition, if the name is based on the tag of the metadata, the name can be automatically given, which is convenient.

The third aspect of the present invention is defined as follows. That is,
In the guidance point setting device defined in the second aspect, comprising a metadata extraction unit that extracts metadata common to the tags,
The metadata selection unit selects metadata in which the imaging positions are close to each other based on the imaging position information of the extracted metadata.
According to the guidance point setting device of the third aspect defined as described above, metadata having a common tag is extracted in advance, and the imaging positions are close to each other based on the imaging position information of the extracted metadata. Select the metadata to be used. If the tags are common, it is considered that the imaging target is also common, so that the guide points can be efficiently set based on the selected metadata.

The fourth aspect of the present invention is defined as follows. That is,
An imaging information storage step of storing metadata including imaging position information corresponding to the captured image data in an imaging information storage unit;
A metadata selection step for selecting metadata in which imaging positions are close to each other based on the imaging position information; and
A guidance point setting step in which a guidance point setting unit sets a guidance point based on imaging position information of the selected metadata;
A guide point setting method comprising:
According to the invention of the fourth aspect defined as described above, the same effect as that of the first aspect can be obtained.

The fifth aspect of the present invention is defined as follows. That is,
In the method defined in the fourth aspect, the metadata includes a tag indicating the content of the captured image data,
The name assigning unit includes a name assigning step for assigning a name corresponding to the set guide point based on the tag of the selected metadata.
According to the fifth aspect of the invention thus defined, the same effects as those of the second aspect can be achieved.

The sixth aspect of the present invention is defined as follows. That is,
In the method defined in the fifth aspect, the metadata extraction unit includes a metadata extraction step of extracting metadata common to the tags,
In the metadata selection step, metadata in which the imaging positions are close to each other is selected based on the imaging position information of the extracted metadata.
According to the sixth aspect of the invention thus defined, the same effect as the third aspect can be obtained.

Furthermore, the seventh aspect of the present invention is defined as follows. That is,
A computer program for setting a guide point, the computer,
Imaging information storage means for storing metadata including imaging position information corresponding to the captured image data;
Metadata selection means for selecting metadata whose imaging positions are close to each other based on the imaging position information;
Guidance point setting means for setting a guidance point based on imaging position information of the selected metadata;
As a computer program.
According to the seventh aspect of the invention thus defined, the same effect as the first aspect can be obtained.

The eighth aspect of the present invention is defined as follows. That is,
In the computer program defined in the seventh aspect, the metadata includes a tag indicating the content of the captured image data,
Said computer further
Based on the tag of the selected metadata, it functions as a name assigning means for assigning a name corresponding to the set guide point.
According to the invention of the eighth aspect defined as described above, the same effect as that of the second aspect can be obtained.

The ninth aspect of the present invention is defined as follows. That is,
In the computer program defined in the eighth aspect, the computer is further
Function as metadata extraction means for extracting metadata common to the tags,
The metadata selection unit selects metadata in which the imaging positions are close to each other based on the imaging position information of the extracted metadata.
According to the ninth aspect of the invention thus defined, the same effect as the third aspect can be obtained.

  A recording medium for recording a computer program defined in any of the seventh to ninth aspects is defined as a tenth aspect.

It is a block diagram which shows the structure of the guidance point setting apparatus 1 of embodiment of this invention. It is a flowchart which shows an example of operation | movement of the guidance point setting apparatus 1 of embodiment of this invention. It is a block diagram which shows the structure of the guidance point setting apparatus 21 of other embodiment of this invention. It is a block diagram which shows the structure of the guidance point setting apparatus 31 of other embodiment of this invention. The computer program which comprises the guidance point setting apparatus 31 of other embodiment of this invention is shown.

A guide point setting device according to an embodiment of the present invention will be described.
FIG. 1 shows a schematic configuration of the guidance point setting device 1.
As shown in FIG. 1, the guidance point setting device 1 includes an imaging information storage unit 3, a metadata selection unit 5, a first storage unit 7, a guidance point setting unit 9, and a second storage unit 11.
The imaging information storage unit 3 stores metadata corresponding to the captured image data. The metadata may include a tag indicating the content of the captured image data such as a captured facility name, information regarding the captured direction, zoom rate, date / time, day of the week, weather, and the like together with the captured position information. The said imaging position information will not be specifically limited if it is the information regarding the imaging position of the said captured image. For example, the coordinate information acquired at the time of imaging is mentioned by the GPS function with which the imaging device was equipped. As another example, the coordinate information of the imaging position associated with the captured image data after imaging may be used. The imaging information storage unit 3 may store captured image data in addition to the metadata. The captured image data and metadata are downloaded from a smartphone or camera as an imaging device or via a network and stored in the imaging information storage unit 3.

  The metadata selection unit 5 selects metadata in which the imaging positions are close to each other based on the imaging position information stored in the imaging information storage unit 3. The selection method is not particularly limited. For example, metadata in which the imaging position is within a predetermined range can be selected. Specifically, it is possible to select metadata in which the imaging position exists within a predetermined mesh range on the map. As another example, clustering may be performed so that metadata close to the imaging positions are collected based on the distance between the imaging positions. When the metadata includes the date / time and the day of the week when the image was taken, the metadata may be selected for each time zone and each day of the week based on these pieces of information. In this case, guide points can be set for each time zone, day of the week, month, or season in the guide point setting unit 9 described later. The selected metadata is stored in the first storage unit 7.

  The guide point setting unit 9 sets guide points based on the imaging position information of the metadata selected by the metadata selection unit 5. The set guidance point only needs to be able to indicate that it is a place suitable for guidance, and may be a point or a region. Further, when the number of selected metadata is equal to or greater than a predetermined threshold value, a guidance point can be set. The setting method is not particularly limited. For example, based on the imaging position information of the selected metadata, an area formed at the outer edge of the imaging position can be used as a guide point. As another example, the center of the formed area may be set as a guide point. The center of the area may be a distance center point in the area, or may be set in consideration of the degree of positional dispersion of metadata in the area. Further, when the metadata selection unit 5 selects metadata existing within a predetermined mesh range, the outer edge of the mesh or the center of the mesh can be set as a guide point. The set guidance point is stored in the second storage unit 11. The set guidance point can be used for navigation by guiding it together with the name of the guidance point described later. In addition, by attaching a flag to the guide point, it can be used as an indicator for conducting a field survey.

An example of the operation of the guidance point setting device 1 shown in FIG. 1 will be described with reference to FIG.
First, in step 1, the metadata selection unit 5 selects and stores metadata in which the imaging position of the metadata stored in the imaging information storage unit 3 exists in the same mesh based on a predetermined mesh. .
When the number of selected metadata is 10 or more (step 3: Yes), the guidance point setting unit 9 sets the center of the mesh where the metadata selected in step 1 is located as a guidance point, and saves it. (Step 5).

FIG. 3 shows a guide point setting device 21 according to another embodiment. 3, the same elements as those in FIG. 1 are denoted by the same reference numerals, and the description thereof is partially omitted.
FIG. 3 shows a guide point setting device 21 that can give a name corresponding to the guide point set to the guide point set above. That is, the device 21 further includes a name assigning unit 23 in the device 1 illustrated in FIG. 1, and includes a second storage unit 25 instead of the second storage unit 11.
In this device 21, the imaging information storage unit 3 captures, for example, “Nagoya Castle”, “Nagoya Castle” indicating night image of Nagoya Castle, and night scenes as tags indicating the contents of the captured image data. “Night scene”, “Beautiful night scene”, “Night scene date” and the like indicating the image data are stored. For example, the tag can be given by a manual operation of a photographer or the like. As another example, the tag may be automatically assigned based on the content of the captured image data. For example, the tag determined using the imaging position information linked | related with captured image data can be mentioned.

  The name assigning unit 23 refers to the first storage unit 7, and based on the metadata tag selected by the metadata selection unit 5, the name corresponding to the guidance point set by the guidance point setting unit 9 Is granted. Although the method of giving is not particularly limited, a name can be given based on the tag when there are a predetermined number or more of the same or similar tags in the selected metadata. For example, among the selected metadata, when there are five or more metadata with the tag “Nagoya Castle”, the name “Nagoya Castle” is given to the guide point. As another example of the assigning method, it is possible to compare the tags of the selected metadata and assign a common text part as the name of the guide point. For example, when the tags “Night view”, “Beautiful night view”, and “Night view date” are attached to the selected metadata, the text part “Night view” common to the three tags is assigned as the name of the guidance point. To do. In addition, if the tag “Nagoya Castle” is assigned with “Honmaru”, “Tenshukaku”, etc. as subtags, the “Nagoya Castle-Honmaru” will be added to the guide point in consideration of the commonality of the subtags. , “Nagoya Castle-castle tower” can be given. The name of the guidance point is not limited to one, and a plurality of names may be given. The assigned name is stored in the second storage unit 25 in association with the set guide point.

FIG. 4 shows a guidance point setting device 31 according to another embodiment. 4, the same elements as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is partially omitted.
FIG. 4 shows that metadata having a common tag is extracted in advance, so that the above-mentioned imaging positions can be selected close to each other, and guide points can be efficiently set based on the selected metadata. This is a guidance point setting device 31 capable of That is, the device 31 further includes a metadata extraction unit 33 in the device 21 shown in FIG. 2, and replaces the metadata selection unit 5 and the first storage unit 7 with a metadata selection unit 35 and a first storage unit 37. Is provided.

Based on the metadata tag stored in the imaging information storage unit 3, the metadata extraction unit 33 extracts metadata common to the tag. Although the extraction method is not particularly limited, for example, metadata in which tags are completely matched may be extracted, or tags that are matched forward or partially matched may be extracted.
In this device 31, the metadata selection unit 35 selects metadata whose imaging positions are close to each other based on the imaging position information of the metadata extracted by the metadata extraction unit 33. The selection method can be performed by a method similar to that of the metadata selection unit 5. The selected metadata is stored in the first storage unit 37.

FIG. 5 is a block diagram showing a hardware configuration of the guidance point setting device 21.
The hardware configuration of the device 21 is such that various elements are coupled to the central controller 221 via the system bus 222 in the same manner as a general computer system.
The central controller 221 includes a general-purpose CPU, a memory controller, a bus controller, an interrupt controller, and a DMA (direct memory access) device. The system bus 222 also includes a data line, an address line, and a control line. A memory circuit including a RAM (Random Access Memory) 223 and a nonvolatile memory (ROM 224, CMOS-RAM 225, etc.) is connected to the system bus 222. Data stored in the RAM 223 is read or rewritten by the central controller 221 or other hardware elements. The data in the non-volatile memory is read-only, and the data is not lost when the device is turned off. The system program for controlling the hardware is stored in the hard disk device 227 and also stored in the RAM 223, and is read and used by the central control device 221 as appropriate via the disk drive control device 226. The hard disk device 227 has an area for storing a computer program for operating a general-purpose computer system as the guide point setting device 21.

A predetermined area of the hard disk device 227 is allocated for the storage unit 7 that stores the metadata selected by the metadata selection unit 5.
Another area of the hard disk device 227 is allocated for the storage unit 11 that stores the guide points set by the imaging information storage unit 3 and the guide point setting unit 9.
Connected to the system bus 222 are a flexible drive control device 231 that reads and writes data from and to the flexible disk 232, and a CD / DVD control device 233 that reads data from the compact disk 234. In this example, a printer 238 is connected to the printer interface 237.
A keyboard / mouse control device 241 is connected to the system bus 222 to enable data input from the keyboard 242 and the mouse 243. A monitor 245 is connected to the system bus 222 via the monitor control device 244. The monitor 245 can be a CRT type, a liquid crystal type, a plasma display type, or the like.
An empty slot 251 is prepared in order to allow the addition of various elements (such as a modem).

  Programs (OS program, application program (including those of the present invention)) necessary for operating the guide point setting device 21 comprising this computer system are installed in the system via various recording media. For example, it is possible to install in the form of a non-write recording medium (CD-ROM, ROM card, etc.), a writable recording medium (FD, DVD, etc.), or a communication medium using the network N. Of course, these programs can be written in advance in the nonvolatile memories 224 and 225 and the hard disk device 227.

  Although the embodiments and examples of the present invention have been described above, two or more of the embodiments (examples) may be combined and implemented. Alternatively, one of these embodiments (examples) may be partially implemented. Furthermore, among these, two or more embodiments (examples) may be partially combined.

  The present invention is not limited to the description of the embodiments and examples of the invention described above. Various modifications may be included in the present invention as long as those skilled in the art can easily conceive without departing from the description of the scope of claims.

1 21 31 Guidance point setting device 3 Imaging information storage unit 5 35 Metadata selection unit 9 Guidance point setting unit 23 Name assigning unit 33 Metadata extraction unit

Claims (10)

An imaging information storage unit that stores metadata including imaging position information corresponding to the captured image data;
A metadata selection unit that selects metadata in which the imaging positions are close to each other based on the imaging position information;
A guidance point setting unit for setting a guidance point based on the imaging position information of the selected metadata;
A guide point setting device. The metadata includes a tag indicating the content of the captured image data,
A name assigning unit for assigning a name corresponding to the set guide point based on the tag of the selected metadata;
The guide point setting device according to claim 1, comprising: A metadata extraction unit for extracting metadata common to the tags,
The metadata selection unit selects metadata in which the imaging positions are close to each other based on imaging position information of the extracted metadata.
The guidance point setting device according to claim 2. An imaging information storage step of storing metadata including imaging position information corresponding to the captured image data in an imaging information storage unit;
A metadata selection step for selecting metadata in which imaging positions are close to each other based on the imaging position information; and
A guidance point setting step in which a guidance point setting unit sets a guidance point based on imaging position information of the selected metadata;
A guide point setting method comprising: The metadata includes a tag indicating the content of the captured image data,
A name assigning step in which a name assigning unit assigns a name corresponding to the set guide point based on the tag of the selected metadata;
The guide point setting method according to claim 4, comprising: A metadata extraction unit comprising a metadata extraction step of extracting metadata common to the tags;
In the metadata selection step, based on imaging position information of the extracted metadata, the metadata in which the imaging positions are close to each other is selected.
The guide point setting method according to claim 5. A computer program for setting a guide point, the computer,
Imaging information storage means for storing metadata including imaging position information corresponding to the captured image data;
Metadata selection means for selecting metadata whose imaging positions are close to each other based on the imaging position information;
Guidance point setting means for setting a guidance point based on imaging position information of the selected metadata;
As a computer program. The metadata includes a tag indicating the content of the captured image data,
Said computer further
Name assigning means for assigning a name corresponding to the set guidance point based on the selected metadata tag;
The computer program according to claim 7, which is caused to function as: Said computer further
Function as metadata extraction means for extracting metadata common to the tags,
The metadata selection unit selects metadata in which the imaging positions are close to each other based on imaging position information of the extracted metadata.
The computer program according to claim 8.   The recording medium which records the computer program in any one of Claims 7-9.

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