JP2013247589A - Imaging apparatus, display control apparatus, imaging apparatus control method, display control apparatus control method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique which, when a user uses a map to search for image data such as a photograph taken in the past, enables the user to use the feature of the periphery of an imaging position at the time of imaging.SOLUTION: The imaging apparatus comprises: imaging means which images a subject to generate image data; positional information acquisition means which acquires positional information indicating the imaging position of the image data; map data acquisition means which acquires imaging position map data representing with a predetermined scale an imaging position map covering a predetermined area including the imaging position; and recording means which records on a recording medium a data set holding the image data, the positional information, the imaging position map data, and scale information representing the predetermined scale, in association with one another.

Description

  The present invention relates to an imaging apparatus, a display control apparatus, a control method for the imaging apparatus, a control method for the display control apparatus, and a program.

  Some recent digital cameras and digital video cameras have a GPS positioning function, and record image position information in association with captured image data. A service that provides map data that is periodically updated from a map server to a client is also known.

  As a technique for utilizing imaging position information associated with captured image data, a technique for displaying thumbnails of image data at corresponding positions on a map is known (see Patent Document 1). The image reproduction method of Patent Literature 1 reads a captured image recorded by a camera connected to a GPS device and GPS information recorded corresponding to each captured image. Further, in this image reproduction method, desired map data is read from a recording medium for storing map data, and an electronic map including the shooting location of the shot image is displayed on the display means. In addition, this image reproduction method displays a thumbnail of each captured image at a corresponding position on the electronic map based on the GPS information read together with the captured image.

  When thumbnails (or indicators indicating the presence of photographed images) are displayed on the map in this way, when the user searches for a target photograph from a large number of photographs, the memory regarding the characteristics (landscape etc.) of the photographed place is stored. Can be used. For example, if the target photograph was taken in a large square, the user can easily find the target photograph by paying attention to the large square in the map.

Japanese Patent Laid-Open No. 10-233985

  In general, the map changes with the times due to the construction or removal of buildings or the construction or abolition of roads. Therefore, for example, there may be a case where a large building is erected in a place that was a large square at the time of taking a picture, for example, when searching for a picture (for example, when displaying a map according to the technique of Patent Document 1). In this case, since there is a large building at a location corresponding to the shooting location of the target photo on the map, when the user pays attention to the large square in the map, it becomes difficult to find the target photo.

  The present invention has been made in view of such a situation. When a user searches for image data such as a photograph taken in the past using a map, the feature at the time of imaging around the imaging position is used. The purpose is to provide technology that enables

  In order to solve the above-described problem, the first aspect of the present invention provides an imaging unit that images a subject to generate image data, a position information acquisition unit that acquires position information indicating an imaging position of the image data, and the imaging Map data acquisition means for acquiring imaging position map data indicating an imaging position map covering a predetermined area including a position at a predetermined scale; the image data; the position information; the imaging position map data; and the predetermined scale. An image pickup apparatus comprising: a recording unit that records, on a recording medium, a data set in which scale information indicating the above is stored in association with each other.

  Other features of the present invention will become more apparent from the accompanying drawings and the following description of the preferred embodiments.

  With the above configuration, according to the present invention, when the user searches for image data such as a photograph taken in the past using a map, it is possible to use the characteristics at the time of imaging around the imaging position.

1 is a functional block diagram of a digital camera 100 that is an example of an imaging device and a display control device. 2A and 2B are overview diagrams of a digital camera 100 that is an example of an imaging device and a display control device, in which FIG. FIG. 4 is a diagram illustrating an example of data recorded on a recording medium by the digital camera 100. 5 is a flowchart showing imaging recording processing by the digital camera 100. 5 is a flowchart showing map display processing by the digital camera 100. The figure which shows the example of the map displayed by the display process shown in FIG. 5 in 1st Embodiment. The figure which shows the example of the map displayed by the display process shown in FIG. 5 in 2nd Embodiment. The figure which shows the example of the map displayed by the display process shown in FIG. 5 in 3rd Embodiment. (A) is LOC_0001. An example of the contents of the scl file 307 is shown, (b) is LOC_0002. An example of the contents of the scl file 309 is shown.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The technical scope of the present invention is determined by the claims, and is not limited by the following individual embodiments. In addition, not all combinations of features described in the embodiments are essential to the present invention.

[First Embodiment]
2A and 2B are schematic views of a digital camera 100 that is an example of an imaging device and a display control device. FIG. 2A is a general overview diagram, and FIG. The digital camera 100 includes a mode selection dial 201, and the user selects “still image recording mode / moving image recording mode / full screen reproduction mode / map display mode / power OFF” by rotating the mode selection dial 201. In addition, the digital camera 100 includes an imaging button 202. When the mode selection dial 201 is in the still image recording mode, still image shooting is performed by pressing the imaging button 202. In the moving image recording mode, the imaging button 202 operates in a toggle format, and moving image recording starts when pressed for the first time, and stops moving image recording when pressed for the second time. At this time, the digital camera 100 encodes the moving image according to the setting of the recording resolution and image quality (bit rate) of a still image / moving image (not shown) and records the encoded moving image on the recording medium inserted in the recording medium insertion port 204. The digital camera 100 also includes an imaging lens unit 203 that integrates a focus lens and a focus lens drive motor. In addition, the digital camera 100 includes an LCD panel 205, and the LCD panel 205 displays photographed images and map data acquired from a map server (not shown). The digital camera 100 also includes a select button 206, a menu button 207, and a cross key 208. A cross key 208 is used to specify various user operations in accordance with a GUI displayed on the LCD panel 205.

  FIG. 1 is a functional block diagram of a digital camera 100 that is an example of an imaging device and a display control device. The control unit 112 includes a ROM that stores a control program and a RAM that functions as a work area, and implements various functions of the digital camera 100 by executing the control program.

  The imaging unit 101 includes an imaging lens unit 203 and an image receiving element that generates a camera signal from optical information of the imaging lens unit 203. The image data generation unit 102 generates image data obtained by encoding the camera signal of the subject generated by the imaging unit 101. At this time, when the mode selection dial 201 is in the still image recording mode, image data in JPEG format is generated, and in the moving image recording mode, image data in the MPEG2-TS format (moving image data) subjected to MPEG-Video format moving image compression is generated. Image data).

  The position information acquisition unit 103 acquires position information by GPS, performs positioning periodically, and holds the latest position information. When the mode selection dial 201 is in the still image recording mode, the position information held at the timing when the imaging button 202 is pressed is acquired. On the other hand, in the moving image recording mode, the held position information is continuously acquired at predetermined intervals while the moving image recording is continued.

  The communication unit 106 performs wireless communication (remote communication) with the map server, and it is desirable that the communication unit 106 can immediately communicate according to imaging. The map data acquisition unit 105 specifies the imaging position information acquired by the position information acquisition unit 103 and a predetermined scale necessary for acquisition of map data, and acquires map data from the map server via the communication unit 106. The record data construction unit 104 cuts out a predetermined area centered on the imaging position from the map data acquired by the map data acquisition unit 105 and creates map data of the imaging location (imaging position map data). The recording data construction unit 104 generates recording data (data set) that holds image data, imaging position information, imaging position map data, and scale information in association with each other.

  The data read / write unit 107 records all data / information constituting the recording data on the recording medium 108 inserted into the recording medium insertion slot 204. The data read / write unit 107 has a function of reading recorded data from the recording medium 108. The recording data analysis unit 110 analyzes the relationship between data / information constituting the read recording data.

  When the mode selection dial 201 is in the full screen reproduction mode, the display screen generation unit 109 (display control unit) reproduces the image data recorded on the recording medium 108 on the full screen in the order of the recording time. Is used to read image data from the recording medium 108. Then, the display screen generation unit 109 decodes the encoded image data and generates display image data. On the other hand, when the mode selection dial 201 is in the map display mode, the display screen generation unit 109 acquires map data (base map data) of an area specified by the user using the map data acquisition unit 105. When the imaging position is included in the map (base map) indicated by the base map data, the image data is displayed as a thumbnail (or an indicator indicating the imaging position) on the base map. At this time, by displaying the map (imaging position map) indicated by the imaging position map data included in the recording data on the base map data, the vicinity of the imaging location at the time of imaging is reproduced on the base map. A display unit 111 is an LCD panel 205 and displays the screen created by the display screen generation unit 109.

  FIG. 3 is a diagram illustrating an example of data recorded on the recording medium 108 by the digital camera 100. In the present embodiment, the data to be recorded is recorded with a configuration conforming to the DCF standard. The DCIM directory 301 is a top-level directory in which data defined by the DCF standard is stored. The 100ABCDE folder 302 is a folder name based on the first layer naming convention defined by the DCF standard. The total number of image data that can be recorded in one folder is defined, and if it exceeds this, it is necessary to create a new directory in which the numerical values of the first three characters are changed and record the image data. IMG — 0001. The jpg file 303 is image data generated when the imaging button 202 is pressed while the mode selection dial 201 is set to the still image recording mode. IMG_0002. The mov file 308 is image data generated when the imaging button 202 is operated in a state where the mode selection dial 201 is set to the moving image recording mode. The MAP — 001.001 file 304, the MAP — 001.002 file 305, and the MAP — 001.003 file 306 are imaging position map data cut out by the recording data construction unit 104. When a plurality of scaled imaging position map data are generated, the plurality of imaging position map data are recorded with different extensions. LOC — 0001. Scl file 307 and LOC_0002. The scl file 309 includes position information indicating the imaging position of the image data and scale information corresponding to the imaging position map data cut out by the recording data construction unit 104.

  For example, it is assumed that the imaging position is 35 degrees 40 minutes 00.00 seconds north latitude / 139 degrees 46 minutes 00.00 seconds east longitude. Further, the scale of MAP — 001.001 is 1/1000, the scale of MAP — 001.002 is 1/10000, and the scale of MAP — 0001.003 is 1 / 50,000. In this case, LOC_0001. The contents of the scl file 307 are as shown in FIG.

  Further, in the case of moving image imaging, the position information acquisition unit 103 acquires imaging position information by GPS periodically (for example, every minute). Therefore, LOC_0002. In the scl file 309, for example, as shown in FIG. 9B, a plurality of pieces of position information are described with line breaks.

  Next, a recording data generation method will be described with reference to FIG. When the user presses the imaging button 202 while the mode selection dial 201 is in the still image recording mode or the moving image recording mode, the processing of this flowchart starts from S401.

  In step S402, the control unit 112 determines whether the setting of the mode selection dial 201 is the moving image recording mode. In the case of the moving image recording mode, the process proceeds to S403. Otherwise, in S411, the control unit 112 determines whether or not the setting of the mode selection dial 201 is the still image recording mode. In the still image recording mode, the process proceeds to S412. Otherwise, the process proceeds to S414 and ends.

  If it is determined in S411 that the still image recording mode is selected, in S412, the image data generation unit 102 generates still image data (.jpg file) as image data by encoding the camera signal of the imaging unit 101 into the JPEG format. To do. Subsequently, in S413, the position information acquisition unit 103 acquires imaging position information by GPS. For example, the image data and the imaging position information are temporarily stored in the RAM of the control unit 112.

  On the other hand, if it is determined in S402 that the moving image recording mode is selected, in S403, the image data generation unit 102 stores the MPEG2-TS format image data obtained by performing the MPEG-Video format moving image compression on the camera signal of the imaging unit 101. Start generation. While generating this image data, the position information acquisition unit 103 acquires imaging position information by GPS periodically (for example, every minute). Generation of image data and acquisition of imaging position information continue until the imaging button 202 is pressed again in S405. For example, the image data and the imaging position information are temporarily stored in the RAM of the control unit 112.

  Subsequently, in S406, the control unit 112 calculates a moving area during imaging of moving image data. In the present embodiment, the minimum rectangular area including all of the imaging positions indicated by the position information acquired in S404 is set as the movement area. In order to specify the movement region, the control unit 112 uses the most northwest position and the most southeast position of the imaging position indicated by each piece of position information acquired in S404. In the example of FIG. 9B, the most northwest position = (35 ° 40′20.20N / 139 ° 46′00.00E) and the most southeast position = (35 ° 40′00.00N / 139 ° 46′00. 20E). The control unit 112 sets a rectangular area defined by the most northwest position and the most southeast position as a movement area.

  Note that the moving area calculation method is not limited to this. For example, when the size of the minimum rectangular area including all of the imaging positions is equal to or larger than the threshold value, this rectangular area is set as a moving area. On the other hand, if it is less than the threshold, a rectangular area that includes all of the imaging positions and has a threshold size may be used as the movement area. In addition, the moving area does not have to be rectangular, and it is not essential to include all of the imaging positions.

  Following S413 (in the case of the still image recording mode) or S406 (in the case of the moving image recording mode), in S407, the map data acquisition unit 105 acquires map data from the map server via the communication unit 106. When acquiring map data, the map data acquisition unit 105 specifies a predetermined scale for the map server. Further, the map data acquisition unit 105 notifies the map server of the imaging position in the still image recording mode and the center position of the moving area in the moving image recording mode.

  Note that the acquisition source of the imaging position map data is not limited to the map server. For example, map data may be stored in the ROM of the control unit 112, and the map data acquisition unit 105 may acquire map data from the ROM. Further, the map data may be vector data or raster data. When the map data is vector data, a predetermined scale is used as a reference. 3 and 9 show a plurality of imaging position map data corresponding to a plurality of scales. However, in the case of vector data, image quality deterioration due to enlargement and reduction does not occur. One data is sufficient. Even in the case of raster data, there is no problem even if there is only one imaging position map data, except for image quality deterioration.

  Next, in S408, the map data acquisition unit 105 cuts out map data around the shooting position from the map data acquired in S407, thereby displaying an imaging position map that covers a predetermined area including the imaging position at a predetermined scale. Generate map data. In the moving image recording mode, this “predetermined area” corresponds to the moving area calculated in S406. However, there is no problem even if the cutout range is adjusted according to the scale.

  Until imaging position map data is acquired for all necessary scales, the process returns from S409 to S407, and the processes of S407 and S408 are repeated. In the example of FIG. 3 and FIG. 9, the imaging position map data is acquired at a scale of three patterns (1: 1000, 1: 10000, 1: 50000).

  In S410, the recording data construction unit 104 constructs a data set (recording data) that holds image data, position information, imaging position map data, and scale information indicating the scale of the imaging position map data in association with each other. Recording is performed on the recording medium 108. An example of the data set is shown in FIGS. 3 and 9 (see reference numerals 303 to 307 in FIG. 3 and FIG. 9A), but is not limited thereto. Thereafter, the processing of this flowchart ends in S414.

  Next, a map display process using data recorded by the recording process of FIG. 4 will be described with reference to FIG. When the mode selection dial 201 is set to the map display mode, the process of this flowchart starts from S501.

  In step S <b> 502, the control unit 112 determines a map area to be displayed based on information about the current position or captured image data. For this determination, the data read / write unit 107 (first acquisition unit) acquires position information and the like by reading a file with the extension “.scl” from the recording medium 108. For example, the control unit 112 can determine a display area around the imaging position of a photo displayed in the full screen display mode, or can determine a display area around the current position of the user. It is not necessarily limited to. However, the display area is determined so as to cover an area wider than the imaging position map.

  In S503, the map data acquisition unit 105 (second acquisition unit) acquires map data (base map data) indicating the map (base map) of the display area determined in S502 from the map server. After that, in S504, the recording data analysis unit 110 identifies image data recorded in the display area of the base map among the image data recorded on the recording medium 108 (again, the extension is “.scl”). File is used). Subsequently, in S505, the data read / write unit 107 (first acquisition unit) acquires imaging position map data and scale information from the data set recorded in the recording medium 108 for the image data specified in S504. At this time, when a plurality of imaging position map data of different scales are recorded on the recording medium 108, the data read / write unit 107 identifies and selects imaging position map data of a scale closest to the scale of the base map. Thereby, image quality deterioration accompanying resizing of the imaging position map can be suppressed.

  In step S <b> 506, the display screen generation unit 109 displays a base map on the display unit 111. Further, the display screen generation unit 109 superimposes and displays the imaging position map acquired in S505 in an area corresponding to the imaging position in the base map. At the time of superimposed display, the display screen generation unit 109 processes the imaging position map data based on the scale of the base map and the scale of the imaging position map, thereby matching the scale of the imaging position map with the scale of the base map ( The scales do not have to match exactly). Further, in S507, the display screen generation unit 109 superimposes and displays an imaging data icon (indicator) for notifying that there is captured image data at a position corresponding to the imaging position on the base map.

  In S508, the control unit 112 determines whether or not the mode selection dial 201 has been changed from the map display mode to another mode. If not changed, the process returns to S502, the display area of the base map is changed as necessary, and the same process is repeated. If the mode selection dial 201 has been changed, the process proceeds to S509, and the process of this flowchart ends.

  FIG. 6 is a diagram showing an example of a map displayed by the display process shown in FIG. FIG. 6A shows a base map, and a pin icon 601 shows an imaging position of image data. FIG. 6B shows a map at the time of imaging of image data (that is, a map of an age older than that of FIG. 6A), and an area 602 is an imaging position map. As is clear from the comparison between FIG. 6A and FIG. 6B, the map around the pin icon 601 in the base map in FIG. 6A is based on the imaging position map in the region 602 in FIG. It has changed. FIG. 6C shows a map displayed on the display unit 111. This map is almost the same as the base map of FIG. 6A, but an imaging position map corresponding to the area 602 of FIG. 6B is displayed for the area 603 around the pin icon 601.

  With the map in FIG. 6C, the user can recognize that there is image data captured at the position of the pin icon 601. In addition, the contents of the image data captured at the position of the pin icon 601 can be estimated based on the storage at the time of image data capture and the characteristics of the area 603 (landscape, terrain, etc.). Therefore, it becomes easy for the user to find the target image data.

  In the example of FIG. 6, there is only one image data captured in the display area of the base map. However, when there are a plurality of image data, an imaging position map and a pin icon are superimposed on each image data. Is done.

  As described above, according to this embodiment, the digital camera 100 mutually receives image data, position information indicating the imaging position, imaging position map data indicating the imaging position map at a predetermined scale, and scale information. The data is recorded on the recording medium 108 in association with each other. In addition, the digital camera 100 displays a base map, superimposes the imaging position map on an area corresponding to the imaging position of the image data recorded on the recording medium 108 in the base map, and displays an indicator at the imaging position. .

  Thereby, even if the characteristics (landscape, terrain, etc.) around the imaging position change after imaging of the image data, the map at the time of imaging is displayed for the area around the imaging position. Therefore, when a user searches for image data such as a photograph taken in the past using a map, it is possible to use features at the time of imaging around the imaging position.

  In the present embodiment, the imaging recording process of FIG. 4 and the display process of FIG. 5 are executed by the same digital camera 100, but both processes may be executed by different apparatuses. For example, a personal computer (PC) may execute the display process of FIG. 5, and such a personal computer is also included in the scope of the present invention.

[Second Embodiment]
In the first embodiment, when a plurality of image data exist in the display area of the base map, the imaging position map is superimposed on each image data. However, when each of a plurality of image data is captured at different times, the eras of the corresponding imaging position maps are also different, so that the imaging position maps of various eras are mixed on the base map. Therefore, in the second embodiment, it is possible to suppress a mixture of imaging position maps of various eras on the base map, and to reduce the possibility of the user being confused.

  In the second embodiment, the processes of S410 in FIG. 4 and S506 in FIG. 5 are different from those in the first embodiment. In S410 of FIG. 4, the recording data construction unit 104 includes imaging timing information indicating the imaging timing of the image data in the data set to be recorded on the recording medium 108.

  In S506 of FIG. 5, the display screen generation unit 109 displays a scale bar 702 for designating a specific age (period) as shown in FIGS. 7A and 7B. The user designates a specific age by pressing the cross key 208. In the example of FIG. 7A, 2002 is specified, and in the example of FIG. 7B, 2004 is specified. Then, the display screen generation unit 109 performs superimposed display of the imaging position image only for the image data captured at the designated imaging timing.

  For example, in the example of FIG. 7A, since the image data captured at the position of the indicator 701 is not captured in 2002, the captured position map is not superimposed and displayed. In the example of FIG. 7A, no superimposed display of the imaging position map is performed. This means that there is no image data captured in 2002 in the base map display area.

  On the other hand, in the example of FIG. 7B, since the image data captured at the position of the indicator 701 was captured in 2004, the captured position map is superimposed on the area 704. Although the indicator other than the indicator 701 is displayed on the base map in FIG. 7B, the image data corresponding to these indicators was not captured in 2004, so the superimposed display of the imaging position map is Not done.

  With the above processing, in the present embodiment, it is possible to suppress a mixture of imaging position maps of various eras on the base map, and to reduce the possibility of the user being confused.

[Third Embodiment]
In the third embodiment, a modification of the second embodiment will be described. In the second embodiment, the process of S506 in FIG. 5 is different from that of the first embodiment. In S506 of FIG. 5, the display screen generation unit 109 displays a cursor 805 for selecting a specific indicator (two or more) as shown in FIGS. 8A and 8B. The user selects a specific indicator by pressing the cross key 208. Then, the display screen generation unit 109 performs superimposed display of the imaging position map only for the image data corresponding to the selected indicator. In the example of FIG. 8A, the indicator 801 is selected, and the imaging position map is superimposed on the area 802. On the other hand, in the example of FIG. 8B, the indicator 803 is selected, and the imaging position map is superimposed on the area 804.

  With the above processing, in the present embodiment, it is possible to suppress a mixture of imaging position maps of various eras on the base map, and to reduce the possibility of the user being confused.

[Other Embodiments]
The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

Claims (14)

Imaging means for imaging a subject and generating image data;
Position information acquisition means for acquiring position information indicating an imaging position of the image data;
Map data acquisition means for acquiring imaging position map data indicating an imaging position map covering a predetermined area including the imaging position at a predetermined scale;
Recording means for recording the image data, the position information, the imaging position map data, and a data set holding the scale information indicating the predetermined scale in association with each other on a recording medium;
An imaging apparatus comprising: The map data acquisition means acquires a plurality of imaging position map data each indicating the imaging position map at a different scale,
The imaging apparatus according to claim 1, wherein the data set recorded on the recording medium by the recording unit includes the plurality of imaging position map data and a plurality of corresponding scale information. The imaging apparatus according to claim 1, wherein the imaging position map data is vector data based on the predetermined scale. When the imaging means generates moving image data as the image data,
The position information acquisition means continuously acquires the position information during the imaging,
The map data acquisition means acquires, as the imaging position map data, map data indicating a map that covers an area including all of the plurality of imaging positions indicated by the plurality of position information acquired by the position information acquisition means. The imaging apparatus according to any one of claims 1 to 3, wherein the imaging apparatus is characterized. The map data acquisition means includes
When the size of the minimum rectangular area including all of the plurality of imaging positions is equal to or larger than a threshold, the map data indicating a map covering the minimum rectangular area is acquired as the imaging position map data,
When the size of the minimum rectangular area is less than the threshold, map data indicating a map covering the rectangular area of the threshold size including all of the plurality of imaging positions is acquired as the imaging position map data. The imaging apparatus according to claim 4, wherein the imaging apparatus is characterized. The imaging apparatus according to any one of claims 1 to 5, wherein the map data acquisition unit acquires the imaging position map data from a map server by remote communication. Image data, position information indicating the imaging position of the image data, imaging position map data indicating an imaging position map covering a predetermined area including the imaging position at a predetermined scale, and scale information indicating the predetermined scale are mutually exchanged. First acquisition means for acquiring the position information, the imaging position map data, and the scale information from a data set held in association with
Second acquisition means for acquiring base map data indicating a base map that includes the predetermined area and covers an area larger than the predetermined area;
Display control means for displaying the base map on a display device;
With
The display control means superimposes and displays the imaging position map in an area corresponding to the predetermined area in the base map by processing the imaging position map data based on the scale of the base map and the predetermined scale. An indicator showing a position corresponding to the imaging position in the base map is displayed. The data set includes a plurality of imaging position map data each indicating the imaging position map at a different scale and a plurality of corresponding scale information,
The display control means identifies imaging position map data at a scale closest to the scale of the base map based on the plurality of scale information, and the superimposed display of the imaging position map based on the identified imaging position map data The display control apparatus according to claim 7, wherein: The display control apparatus according to claim 7, wherein the imaging position map data is vector data based on the predetermined scale. The data set further includes imaging time information indicating an imaging time of the image data,
The display control device further comprises a designation means for designating a specific time,
The display control means includes the imaging position map for the imaging position map data acquired by the first acquisition means from a data set including imaging timing information corresponding to the specific time among a plurality of the data sets. The display control apparatus according to claim 7, wherein superimposed display is performed. A selection unit that selects at least one of the plurality of indicators corresponding to the plurality of pieces of position information acquired by the first acquisition unit from the plurality of data sets;
11. The display according to claim 7, wherein the display control unit performs the superimposed display of the imaging position map for the imaging position map data corresponding to the selected indicator. Control device. A method for controlling an imaging apparatus,
An imaging step in which the imaging means of the imaging device images a subject and generates image data;
A position information acquisition step in which the position information acquisition means of the imaging device acquires position information indicating the imaging position of the image data;
A map data acquisition step in which the map data acquisition means of the imaging device acquires imaging position map data showing an imaging position map covering a predetermined area including the imaging position at a predetermined scale;
A recording step in which a recording unit of the imaging apparatus records on the recording medium a data set in which the image data, the position information, the imaging position map data, and the scale information indicating the predetermined scale are stored in association with each other; ,
A control method comprising: A control method for a display control device, comprising:
First acquisition means of the display control device includes image data, position information indicating an imaging position of the image data, imaging position map data indicating an imaging position map covering a predetermined area including the imaging position at a predetermined scale, and A first acquisition step of acquiring the position information, the imaging position map data, and the scale information from a data set that holds the scale information indicating the predetermined scale in association with each other;
A second acquisition step in which a second acquisition unit of the display control apparatus acquires base map data indicating a base map that covers the area including the predetermined area and wider than the predetermined area;
A display control step in which the display control means of the display control device displays the base map on a display device;
With
In the display control process, the imaging position map data is processed based on the scale of the base map and the predetermined scale, thereby superimposing and displaying the imaging position map in an area corresponding to the predetermined area in the base map. An indicator showing a position corresponding to the imaging position on the base map is displayed.   A program for causing a computer to execute each step of the control method according to claim 12 or 13.

Images