JP2014081692A - Recording medium, photographic image processing system, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording medium, a photographic image processing system, and a program capable of acquiring position information at the time of photographing while taking continuous shooting into account.SOLUTION: A recording medium accepts a writing instruction of a photographed photographic image, and stores the photographic image in a predetermined image storage area; requests position information to an external device upon the acceptance of the writing instruction of the photographic image; and compares, for a photographic image not added with information related to position information, image identification information such as the date and time of the photographing and the name of a file of the photographic image with information associated with the recorded position information at a predetermined timing, and generates information representing the place of the photographing and then adds the information to the photographic image.

Description

  The present invention relates to a recording medium, a photographic image processing system, and a program.

  In recent years, a camera is mounted on a mobile phone or the like and is widely used. Some mobile phones equipped with a camera have a position information acquisition function such as GPS (Global Positioning System), for example. When an image is taken with the camera, the position information acquisition function acquires the position information. The acquired position information is recorded in association with the photographed image. Such position information is convenient for later searching for a photographed place, and is generally widely used.

  On the other hand, a so-called digital camera can take a higher-definition image than a camera of a mobile phone, but the function of associating position information is often provided as an option and is not widely used.

  Patent Document 1 discloses a technique in which a camera wirelessly communicates with a nearby mobile phone and acquires position information obtained by positioning with the mobile phone every time a photograph is taken. Further, in Patent Document 2, position information recorded by a GPS logger (an apparatus that records position information at predetermined timings) and image information separately captured by a camera are associated later with the shooting date and time as a key. Technology is disclosed.

JP 2003-204571 A JP 2001-028728 A

  However, in the above conventional technique, for example, if position information is acquired for each shooting, position information is acquired one by one when continuous shooting or the like is performed, and communication and position information acquisition are related. The burden of processing increases. In addition, the method of associating the position information later with the shooting date and time as a key has no problem when, for example, the GPS logger is close to the camera at the time of shooting. However, if these are taken out separately, incorrect position information is displayed. It will be associated.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a recording medium, a photographic image processing system, and a program that take into account continuous shooting and can acquire position information at the time of shooting. One of them.

  The present invention for solving the problems of the conventional example described above is an image information recording medium that accepts an instruction to write a photographed photograph image and stores the photograph image in a predetermined image storage area. Means for communicating with an external device via wireless communication means, and position information requesting means for requesting position information via the communication means when the image storage means accepts a photographic image write instruction. In addition to the photo image, the received location information is stored in a predetermined location information storage area in association with the reception date and time information indicating the date and time when the reception means accepts the writing of the photographic image. And a position information storage means for storing image information, and at a predetermined timing, search for a photographic image to which no information about position information is added, and search for a photographic image to which no information about position information is added. The photographing date and time of the photographic image is compared with the reception date and time information associated with the position information stored in the position information storage area, the difference between them is within a predetermined range, and the difference And an associating means for generating and adding information representing the shooting location to the searched photographic image based on the position information having the smallest.

  Information indicating the shooting location at a later predetermined timing using the acquired position information by making a request for position information to the external device that can communicate via the wireless communication means at the time of accepting the photographic image writing instruction in this way. By generating and associating, it is possible to acquire position information at the time of shooting while considering continuous shooting.

  Further, the information processing apparatus further includes means for adding information indicating that reading has been performed on the photographic image read from the image storage area in response to a reading request, and the association means includes information indicating that reading has been performed. It is also possible to search for a photographic image that is not added and that is not added with information related to position information. Thus, a photographic image that is not associated with position information is searched for from among the photographic images that have not been read out.

  Another embodiment of the present invention is a photographic image processing system including a recording medium and a portable terminal that communicates with the recording medium via wireless communication means, and accepts an instruction to write a photographic image obtained by photographing the recording medium. The image identification information for identifying the photographic image to be written and the photographic image are associated with each other and stored in a predetermined image storage area, and the portable terminal via the wireless communication unit Communication means for communicating, and position information request means for sending a request for position information including the image identification information via the communication means when the image storage means accepts a photographic image writing instruction, The portable terminal receives a request for position information including image identification information from the recording medium, a position information acquisition means for acquiring position information in response to the request, and the acquisition And recording means for recording the received image identification information in association with the received image identification information, and the position information recorded in the portable terminal in association with the image identification information is the same image as the image identification information. In this case, the photographic image stored in the recording medium in association with the identification information is used for the generation processing of position information.

  As described above, when a photographic image writing instruction is accepted, a request for position information including identification information for identifying a photographic image is sent to an external device capable of communication via wireless communication means, so that a processing load can be obtained even during continuous shooting. In addition, it is possible to generate and associate information indicating the shooting location at a later predetermined timing using the position information acquired at that time.

  Another aspect of the present invention is a recording medium that accepts an instruction to write a photographed photographic image, issues image identification information for identifying the photographic image to be written, and the image identification information. Associated with the photographic image to be written and stored in a predetermined image storage area, communication means for communicating with an external device via wireless communication means, and the image storage means Position information requesting means for sending position information including the issued image identification information via the communication means when the writing instruction is accepted, and causing the external device to record the image identification information and the position information in association with each other. Including the positional information recorded in the external device in association with the image identification information, in which the photographic image stored in association with the same image identification information as the image identification information is captured. It is obtained by the fact to be subjected to conversion treatment.

  Here, the image identification information may be a file name of the photographic image, or the image identification information may be issued at a predetermined timing and different from each other for each issue.

  Furthermore, another aspect of the present invention is a program, wherein the computer accepts an instruction to write a photographed photographic image and stores the photographic image in a predetermined image storage area, via a wireless communication unit. A communication means for communicating with an external device, a position information requesting means for requesting position information via the communication means when the image storage means accepts a photographic image writing instruction, and receiving the position information. Position information storage means for storing the received position information separately from the photographic image in a predetermined position information storage area in association with the reception date and time information indicating the date and time when the reception means accepts writing of the photographic image; When a photographic image to which no information about position information is added is searched at a predetermined timing, and a photographic image to which information about position information is not added is searched, A position where the photographing date / time of the true image is compared with the receiving date / time information associated with the position information stored in the position information storage area, and the difference between them is within a predetermined range, and the difference is the smallest Based on the information, it is made to function as associating means for generating and associating information indicating a shooting location with respect to the searched photographic image.

  Furthermore, another aspect of the present invention is a program that accepts an instruction to write a photographed photographic image, issues image identification information for identifying the photographic image to be written, and An image storage means for associating the identification information with the photographic image to be written and storing it in a predetermined image storage area, a communication means for communicating with an external device via a wireless communication means, and the image storage means being a photograph A position to send a request for position information including the issued image identification information via the communication means and record the image identification information and the position information in association with each other when an image writing instruction is accepted It is supposed to function as information request means.

  According to the present invention, continuous shooting is taken into consideration, and position information at the time of shooting can be acquired.

1 is a block diagram illustrating a configuration example of a photographic image processing system according to an embodiment of the present invention. It is a functional block diagram showing the example of the recording medium which concerns on embodiment of this invention. It is explanatory drawing showing the example of the content of the position information recording area which the recording medium based on embodiment of this invention hold | maintains. It is a flowchart figure showing the process example of the recording medium which concerns on embodiment of this invention. It is a block diagram showing the example of a structure of the photograph image processing system which concerns on another example of embodiment of this invention. It is a functional block diagram showing the example of the recording medium which concerns on another example of embodiment of this invention. It is explanatory drawing showing the recording content of the positional information produced | generated by the instruction | indication from the recording medium based on another example of Embodiment of this invention.

  Embodiments of the present invention will be described with reference to the drawings. A recording medium 1 according to an embodiment of the present invention is a recording medium manufactured in accordance with, for example, the SD card standard. As illustrated in FIG. 1, an interface unit 11, a control unit 12, a storage unit 13, and a communication unit 14. In the present embodiment, the recording medium 1 is used by being connected to a photographic image writing device such as a camera 2. The recording medium 1 is used by being connected to a camera 2 or the like which will be described later, and operates upon receiving power from the camera 2 or the like.

  In an example of the present embodiment, the storage medium 1 is communicably connected to the portable terminal 3 as an external device via wireless communication means.

  The interface unit 11 of the recording medium 1 is a connector and is connected to a photographic image writing device such as the camera 2. The interface unit 11 receives a photographic image writing instruction or a photographic image reading instruction from a photographic image writing device such as the camera 2, and outputs the instruction or the like to the control unit 12. The interface unit 11 outputs various information such as a photographic image to the camera 2 or the like in accordance with an instruction input from the control unit 12. The interface unit 11 may also be connected to a device that reads and writes information with respect to the recording medium 1 such as a so-called card reader.

  The control unit 12 is a microcomputer or the like, and operates according to a program stored in the storage unit 13 (or a memory included in the control unit 12). In the present embodiment, the control unit 12 accepts an instruction to write a photographed photograph image, stores the photograph image in the image storage area of the storage unit 13, and requests the communication unit 14 for position information. Is sent out.

  Further, when receiving the position information via the communication unit 14, the control unit 12 associates with the reception date / time information indicating the date / time when the writing of the photographic image is accepted, in a predetermined position information storage area separately from the photographic image. The received position information is stored. Then, at a predetermined timing, for the photographic image to which no information on the position information is added, the shooting date / time of the photographic image is compared with the reception date / time information associated with the position information stored in the position information storage area. Thus, information representing the shooting location is generated and associated with the photographic image to which the difference is within a predetermined range and the information regarding the position information is not added based on the position information with the smallest difference. The specific operation of the control unit 12 will be described later.

  The storage unit 13 is a memory device and holds a program executed by the control unit 12. This program may be written by an instruction input via the interface unit 11. The program may be provided by being stored in a computer-readable recording medium such as a CD-ROM and stored in the storage unit 13. Further, it may be distributed via a network and stored in the storage unit 13.

  The storage unit 13 includes an image storage area for storing photographic images and a position information storage area for storing position information. Further, the storage unit 13 may include an area that operates as a work memory of the control unit 12. The communication unit 14 transmits / receives information to / from an external device via wireless communication means such as a wireless local area network (LAN) interface or Bluetooth.

  The camera 2 captures a photographic image, for example, according to a user instruction, and outputs an instruction to write the captured photographic image to the recording medium 1. For example, the camera 2 continuously captures (continuous shooting) a plurality of photographic images, and outputs a writing instruction to the recording medium 1 to write the plurality of photographic images obtained by the continuous shooting. This continuously photographed photographic image may be subjected to a composition process or a process of selecting a part.

  The mobile terminal 3 that is an external device with which the recording medium 1 communicates via wireless communication means is a mobile phone, for example, and has a function of acquiring position information such as GPS. In an example of the present embodiment, the mobile terminal 3 obtains distance information with each of a plurality of base stations BS constituting the coverage area in which the mobile terminal 3 is located, and receives the information along with the received signals from the GPS satellites. It is possible to obtain position information (so-called AGPS information) that can be measured in a shorter time than when only a GPS satellite signal is used. In addition to the above, the location information acquisition means uses information on neighboring wireless LANs (PlaceEngine (registered trademark), etc.), but the method is not particularly limited here.

  Here, the operation of the control unit 12 of the recording medium 1 will be described. The control unit 12 functionally includes an image storage unit 21, a communication control unit 22, a position information request unit 23, a position information storage unit 24, and an association unit 25, as illustrated in FIG. Consists of.

  The image storage unit 21 accepts an instruction to write a photographed photographic image. Then, according to the writing instruction, the photographic image is stored in a predetermined image storage area in the storage unit 13. In one example of the present embodiment, the photographic image subjected to the writing instruction includes information indicating the shooting date / time and the writing instruction date / time. The communication control unit 22 controls the communication unit 14 to wirelessly transmit and receive various information to and from the terminal device 3 that is an external device.

  The position information request unit 23 causes the communication control unit 22 to send a request for position information when the image storage unit 21 accepts a photographic image writing instruction. By the operation of the position information request unit 23, a request for position information is transmitted to the terminal device 3. As processing in response to this request in the terminal device 3, acquisition of position information and transmission of the position information to the recording medium 1 are performed. And done.

  The position information storage unit 24 receives the position information received from the terminal device 3. Then, the position information storage unit 24 extracts acceptance date / time information indicating the date / time of the writing instruction included in the photographic image. The location information storage unit 24 stores the location information received from the terminal device 3 in a predetermined location information storage area of the storage unit 13 in association with the extracted acceptance date / time information (FIG. 3). Thus, in the present embodiment, the position information is stored in the storage unit 13 separately from the photographic image. In the example of the present embodiment, this position information storage area is a ring buffer, and the received position information for N times (N is a natural number) is stored.

  The associating unit 25 searches the image storage area of the storage unit 13 for a photographic image to which no information about position information is added at a predetermined timing. When a photographic image to which no information about position information is added is searched for at this time, the associating unit 25 associates the photographic date and time of the photographic image with the position information stored in the position information storage area of the storage unit 13. Compare the received date and time information. Then, the position information associated with the reception date / time information in which the difference between the shooting date / time of the searched photographic image and the reception date / time information is within a predetermined range and the difference is the smallest is extracted. Specifically, the range of this difference is set to 15 minutes, and 12 continuous shots are performed in the image storage area of the storage unit 13 at 12:00 pm on August 1, and at 12:10 pm thereafter. Also assume that 12 consecutive shots have been taken. In this case, since a writing instruction is given every time continuous shooting is performed, it is requested at the timing of 12: 0pm and 12:10 pm when the writing instruction is issued, and is acquired in response to the request. Position information is recorded. In this case, for a photographic image continuously shot at 12:00 pm (the shooting date and time is 12:00 pm), the associated reception date and time information is 12:00 pm, The position information at 12:10 pm is position information within a predetermined difference range. The control unit 12 extracts position information associated with the reception date / time information representing 12:00:00 which is closest to the shooting date / time of 12:00:00.

  The associating unit 25 generates information representing the shooting location based on the extracted position information, associates the generated information representing the shooting location with the searched photographic image, and stores the information in the storage unit 13. (The photographic image stored in the storage unit 13 is updated).

  Here, the predetermined timing is a timing when writing is not performed, for example, when a predetermined time has elapsed since the last photo image write instruction or when there is an image information read instruction. . In this example, the camera 2 writes a plurality of photographic images obtained by continuous shooting with a single write instruction. However, the camera 2 captures a plurality of photographic images obtained by continuous shooting at the time of continuous shooting. When writing instructions one by one, the control unit 12 of the storage medium 1 preliminarily determines the elapsed time based on the elapsed time from the timing when the previous write instruction was given (the internal clock may be counted and counted). If the predetermined threshold is not exceeded, a request for position information may not be sent.

  When the control unit 12 of the storage medium 1 accepts a photographic image read instruction, the control unit 12 outputs the photographic image stored in the image information storage area of the storage unit 13 via the interface unit 11. In this case, the control unit 12 may add information indicating that reading has been performed on the photographic image read from the image storage area of the storage unit 13 in response to the read request. When the information indicating that the reading has been performed is added in this way, the control unit 12 does not add the information indicating that the reading has been performed when performing the process as the associating unit 25. It is assumed that a photographic image that is a photographic image and has no information related to position information added is searched for. This reduces the load of the photographic image search process.

  An example of this embodiment is configured as described above, and operates as illustrated in FIG. Upon receiving an instruction to write a plurality of photographic images obtained by continuous shooting by the camera 2, the storage medium 1 stores the plurality of photographic images in the image storage area according to the instruction (S1). Further, when this writing instruction is given, position information is requested from an external device (a device other than the camera 2, here the terminal device 3) (S2). Note that, as described above, the date and time of the write instruction is included in the photographic image subjected to the write instruction in the process S1, and the recording medium 1 uses the date and time of the write instruction as the reception date and time of the photographic image. It will be dealt with below.

  When the terminal device 3 transmits position information in response to this request, the storage medium 1 receives the position information (S3) and stores it in the position information storage area in association with the reception date / time information indicating the reception date / time of the photographic image. (S4). Thereafter, the storage medium 1 stands by until a predetermined timing arrives (S5), and when the predetermined timing arrives, it searches for a photographic image to which no position information is added (S6). The storage medium 1 performs the following processing for each of the photographic images found by the search here (S7: loop start).

  That is, the storage medium 1 takes out the shooting date and time of one of the photographic images found by the search (S8). The storage medium 1 compares the taken shooting date and time with the reception date and time information associated with the position information stored in the position information storage area, and the difference is within a predetermined range and the closest one. Select the reception date and time information. The storage medium 1 extracts the position information associated with the selected acceptance date / time information (S9). Then, the storage medium 1 adds information on the position generated based on the extracted position information to the photographic image found by the search (S10). The information related to the position may be the position information itself or may be processed by a predetermined method.

  The storage medium 1 repeats the processing from processing S8 to processing S10 for photographic images that have not yet been processed among the photographic images found by the search (S11: loop end). If there is no photographic image that has not yet been processed in step S11, the storage medium 1 ends the processing. In step S9, if there is no position information associated with the reception date / time information whose difference from the shooting date / time is within a predetermined range, the process may proceed to step S11 without extracting the position information. In this case, the position information is not added to the photographic image.

  Further, in the present embodiment, a request for position information may be repeatedly sent to an external device at predetermined timings regardless of whether or not a photographic image writing instruction is issued. In this case, the recording medium 1 sequentially stores the position information acquired in response to the request at predetermined time points (for example, periodically) in the position information storage area. Further, the recording medium 1 stores identification information for identifying a photographic image to be written in the position information storage area when a photographic image writing instruction is issued. At this time, the identification information is stored at a position next to the position information stored so far. Then, when a predetermined timing arrives, the recording medium 1 generates and associates information representing a photographed position with respect to a photographic image to which no position information is added based on the position information stored in the position information storage area. . Specifically, with reference to the identification information stored in the position information storage area on the basis of the position information of either before or after the identification information (it is sufficient to decide the one previously), in the identification information Information indicating the position where the identified photographic image is taken is generated and added to the photographic image identified by the identification information. In this example, the photographic image is associated with the position information that is the source of the information indicating the position where the photograph image was captured according to the storage order of the position information and the identification information. Other methods such as a method of using the date and time of instruction may be adopted.

  The embodiments of the present invention are not limited to the example in which the storage medium receives and processes the position information as described above. A storage medium 1 ′ according to another example of the embodiment of the present invention communicates with a terminal device 3 ′ via wireless communication means as illustrated in FIG. 5. As shown in FIG. 6, the control unit 12 of the storage medium 1 ′ may be functionally configured to include an image storage unit 21 ′, a communication control unit 22, and a position information request unit 23 ′. . Components having the same configurations as those already described are denoted by the same reference numerals and detailed description thereof is omitted.

  The image storage unit 21 ′ accepts an instruction to write a photographed photographic image. Then, according to the writing instruction, image identification information serving as a unique key is issued by a predetermined method. Then, the photographic image to be written is stored in a predetermined image storage area in the storage unit 13 in association with the issued image identification information. In the example of the present embodiment, the photographic image subjected to the writing instruction includes information indicating the shooting date and time and the writing instruction date.

  The position information request unit 23 ′ causes the communication control unit 22 to send out a request for position information when the image storage unit 21 ′ accepts a photographic image writing instruction. Here, the request for position information includes the image identification information issued by the image storage unit 21 ′. The position information request is transmitted to the terminal device 3 ′ by the operation of the position information request unit 23 ′. As a process in response to this request in the terminal device 3 ', position information is acquired.

  In this example of the present embodiment, when receiving a request for position information including image identification information from the recording medium 1 ′, the terminal device 3 ′ acquires position information in response to this request. Then, the terminal device 3 ′ records the acquired position information in association with the image identification information included in the request for position information (FIG. 7).

  After that, a photographic image is acquired from the storage medium 1 ′ with a personal computer, a smart phone or the like (hereinafter referred to as a personal computer or the like), and information that associates the position information with the image identification information is acquired from the terminal device 3 ′. Perform the process. That is, using one of the acquired photographic images as a target image on a personal computer or the like, the position information associated with the same image identification information as the image identification information for identifying this target image is stored in the information acquired from the terminal device 3 ′. Search from home. Then, the personal computer or the like generates information on the position where the target image was taken based on the position information found by this search. This generated information may be added to the image of interest.

  Here, the image identification information may be a file name of a photographic image, for example. Further, this image identification information is issued at a predetermined timing and is different from each other for each issuance (specifically, a combination of information unique to the recording medium 1 '(device ID, etc.) and date information) It may be.

  Further, in the description so far, the storage media 1 and 1 ′ have requested acquisition of position information from an external device at the timing when a photographic image writing instruction is accepted. In this example, when writing a photographic image taken in advance from a personal computer or the like, for example, an external apparatus is requested to acquire position information. If this is not preferable, for example, the control unit 12 compares the shooting date and time included in the received photographic image with the date and time of writing instruction (last update date and time), and the difference between them is a predetermined threshold value (for example, 10 seconds). The position information may be requested only when it is within (). In addition, when the device connected to the interface unit 11 can be identified, the position information may be requested only when the connected device is the camera 2.

  Further, in the description so far, the information indicating the shooting position is added to the image information instructed to be written by the storage medium 1 or a personal computer that reads the image information from the storage media 1 to 1 ′. However, the present embodiment is not limited to this. For example, when the storage medium 1 sends a request for position information, photographic image information is sent to an external device, and the external device It is also possible to add information indicating the position where the captured position is acquired by acquiring the position information, and accept and store again the photographic image with the information indicating the captured position in the storage medium 1.

  According to this embodiment, even during continuous shooting, position information is requested at the timing of writing, or information for identifying a photographic image is transmitted at the timing of writing, and position information is requested. As described above, when a load is imposed on the photographic image writing process, it is possible to perform a process with additional load such as addition of position information or recording later. Thereby, processing in consideration of continuous shooting can be executed. In addition, since the request for the position information is processed by the terminal devices 3 and 3 ′ within the range where communication with the recording medium 1 and 1 ′ can be performed by the wireless communication means, generally the position information in the vicinity of the recording medium 1 and 1 ′ You can get it. Note that if the communication protocol between the recording medium 1 and the terminal device 3 is defined in advance and other information cannot be accessed, it is not always necessary for the same person to possess them. For example, when taking a picture with the camera 2, it is possible to acquire position information from a mobile phone of another person who happened to be nearby.

  1, 1 'recording medium, 2 cameras, 3, 3' terminal device, 11 interface unit, 12 control unit, 13 storage unit, 14 communication unit, 21, 21 'image storage unit, 22 communication control unit, 23, 23' Position information request unit, 24 position information storage unit, 25 association unit.

Claims (8)

A recording medium for image information,
Image storage means for accepting an instruction to write a photographed photograph image and storing the photograph image in a predetermined image storage area;
Communication means for communicating with external devices via wireless communication means;
Position information requesting means for requesting position information via the communication means when the image storage means accepts a photographic image writing instruction;
Receiving the position information and storing the received position information separately from the photo image in a predetermined position information storage area in association with the reception date / time information indicating the date / time when the acceptance means accepted the writing of the photo image Position information storage means for
When a photographic image to which no information about position information is added is searched at a predetermined timing and a photographic image to which information about position information is not added is searched, the shooting date and time of the photographic image and the position information storage area And the received date and time information associated with the position information stored in the image, the difference between them is within a predetermined range, and based on the position information with the smallest difference, the searched photographic image An association means for generating and adding information indicating the shooting location,
A recording medium comprising: The recording medium according to claim 1,
A photographic image read from the image storage area in response to a read request, further comprising means for adding information indicating that the read has been performed;
The associating means is a recording medium for searching for a photographic image to which information indicating that the reading has been performed is not added, but to which photographic information is not added. A photographic image processing system including a recording medium and a portable terminal that communicates with the recording medium via wireless communication means,
Image storage that accepts an instruction to write a photographic image taken by a recording medium, associates the photographic image with image identification information for identifying the photographic image to be written, and stores it in a predetermined image storage area Means,
Communication means for communicating with the portable terminal via wireless communication means;
Position information requesting means for sending a request for position information including the image identification information via the communication means when the image storage means accepts a photographic image writing instruction;
Including
The portable terminal is
Receiving means for receiving a request for position information including image identification information from the recording medium;
Position information acquisition means for acquiring position information in response to the request;
Recording means for associating and recording the acquired position information and the received image identification information;
Have
The position information recorded in the portable terminal in association with the image identification information is used for generation processing of position information in which the photographic image stored in the recording medium is associated with the same image identification information as the image identification information. Photographic image processing system. Accepts an instruction to write a photographed photographic image, issues image identification information for identifying the photographic image to be written, associates the image identification information with the photographic image to be written, and Image storage means for storing in the image storage area;
Communication means for communicating with external devices via wireless communication means;
When the image storage means accepts a photographic image write instruction, the position information including the issued image identification information is transmitted via the communication means, and the image identification information and the position information are associated with each other and recorded in an external device. Position information requesting means,
Including a recording medium,
A recording medium used for generating position information in which position information recorded by an external device in association with the image identification information is stored in association with the same image identification information as the image identification information. . The recording medium according to claim 4,
The image identification information is a file name of the photographic image. The recording medium according to claim 4,
The image identification information is issued at every predetermined timing, and is different from each other for every issue. Computer
Image storage means for accepting an instruction to write a photographed photograph image and storing the photograph image in a predetermined image storage area;
Communication means for communicating with external devices via wireless communication means;
Position information requesting means for requesting position information via the communication means when the image storage means accepts a photographic image writing instruction;
The position information is received, and the received position information is stored separately from the photograph image in a predetermined position information storage area in association with the reception date / time information indicating the date / time when the acceptance means accepts writing of the photograph image. Position information storage means;
When a photographic image to which no information about position information is added is searched at a predetermined timing and a photographic image to which information about position information is not added is searched, the shooting date and time of the photographic image and the position information storage area And the received date and time information associated with the position information stored in the image, the difference between them is within a predetermined range, and based on the position information with the smallest difference, the searched photographic image An association means for generating and adding information indicating the shooting location,
Program to function as. Computer
Accepts an instruction to write a photographed photographic image, issues image identification information for identifying the photographic image to be written, associates the image identification information with the photographic image to be written, and Image storage means for storing in the image storage area;
Communication means for communicating with external devices via wireless communication means;
When the image storage means accepts a photographic image write instruction, it sends a request for position information including the issued image identification information via the communication means, and associates the image identification information with the position information. Position information requesting means for recording on an external device;
Program to function as.

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