JP2013015916A - Image management device, image management method, image management program, and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and a method which appropriately manages monitoring images by displaying a monitoring image on a display unit in a display mode corresponding to a frequency at which the monitoring image is browsed.SOLUTION: A storage unit 14 stores a frequency at which a monitoring image is browsed by a user in association with the corresponding image. A control unit 15 displays the monitoring image on a display 2 in a display mode corresponding to the frequency at which the monitoring image is browsed.

Description

  The present invention relates to a technical field such as an apparatus and method for managing images.

  Conventionally, so-called monitoring systems have been used in predetermined facilities (transportation, commercial facilities, public institutions, etc.) for the purpose of maintaining crime prevention or maintaining and improving security.

  In this monitoring system, monitoring images (for example, still images or moving images) continuously captured by a monitoring camera installed at a predetermined location in a facility are sequentially stored (accumulated).

  Then, the user who uses the monitoring system browses each continuously captured monitoring image, compares the monitoring target indicated in each monitoring image, observes the change in the facility, and occurs in the facility It is designed to identify the suspicious person in the facility, or to clarify the incident or accident after the fact.

  Since the monitoring images used in this monitoring system are continuously stored data, the number of stored monitoring images increases with the operation period of the monitoring system, resulting in a huge amount.

  Therefore, Patent Document 1 discloses a technique for classifying and accumulating videos according to types of monitoring events and reducing the time required for a user to browse and search.

Japanese Patent No. 3826598

  However, in a monitoring system that aims at crime prevention of facilities by browsing a huge amount of monitoring images and comparing the monitoring targets shown in the monitoring images, the purpose of the system is It cannot be fully achieved. Accordingly, it is necessary to appropriately manage the monitoring image so that the monitoring image does not fail to be confirmed.

  In the technique disclosed in Patent Document 1, since there is no storage as to whether or not a continuously stored monitoring image (video) has been browsed, there is a possibility that the monitoring image may not be confirmed. Could not manage properly.

  In addition, the technique disclosed in Patent Document 1 is intended to classify continuously stored monitoring images and does not perform unnecessary compression processing or deletion of monitoring images. As a result of not being able to organize images effectively, there is a risk that the confirmation of the browsing image to be browsed may occur, and the monitoring image could not be properly managed.

  Therefore, the present invention has been made in view of the above-described problems, and an example of the object thereof is to provide an apparatus and a method for appropriately managing monitoring images.

  In order to solve the above-described problem, the invention described in claim 1 is a monitoring image in which a monitoring target is captured, and a monitoring image storage unit that stores the monitoring image that can be browsed by a user, and the monitoring image includes: A number-of-views storage means for storing the number of times viewed by the user in association with the monitoring image; and a display unit that displays the stored monitoring image according to the number of times the monitoring image has been viewed. Display control means for displaying on the screen.

  Therefore, the monitoring image can be managed appropriately.

  The invention according to claim 2 is the image management apparatus according to claim 1, wherein the viewing determination indicates a period during which the monitoring target imaged in the monitoring image is estimated to be specified by the user. Browsing judgment means for judging whether or not the monitoring image has been browsed by the user based on a value, wherein the browsing count storage means is that the monitoring image has been browsed by the user by the browsing judgment means When it is determined, the number of times of viewing the monitoring image is stored.

  Accordingly, it is possible to prevent omission of confirmation of the monitoring image and manage the monitoring image more appropriately.

  The invention described in claim 3 is the image display device according to claim 2, wherein the stored monitoring image is a still image, and a thumbnail image indicating one or a plurality of the still images is displayed. A thumbnail image display means, wherein the browsing determination value is set according to the number of the displayed thumbnail images, and the browsing determination means displays the period image indicated by the browsing determination value. If it is determined, it is determined that a still image corresponding to the thumbnail image has been viewed by the user.

  Therefore, even when the monitoring image is a still image, it is possible to prevent omission of confirmation of the monitoring image and to manage the monitoring image more appropriately.

  According to a fourth aspect of the present invention, in the image display device according to the second aspect, the stored monitoring image is a moving image, and the browsing determination value is in accordance with a recording time of the moving image. When the moving image is displayed for a period indicated by the browsing determination value, the browsing determination unit determines that the moving image has been browsed by a user.

  Therefore, even when the monitoring image is a moving image, it is possible to prevent omission of confirmation of the monitoring image and to manage the monitoring image more appropriately.

  The invention according to claim 5 is the image management device according to any one of claims 1 to 4, further comprising: an erasing unit that erases the monitoring image according to the number of times the monitoring image is viewed. It is further provided with the feature.

  Therefore, by effectively organizing the images, it is possible to prevent omission of confirmation of the browsing images to be browsed and appropriately manage the monitoring images.

  The invention according to claim 6 is the image management apparatus according to any one of claims 1 to 5, wherein the compression unit compresses the monitoring image according to the number of times the monitoring image is viewed. Is further provided.

  Therefore, by effectively organizing the images, it is possible to prevent omission of confirmation of the browsing images to be browsed and appropriately manage the monitoring images.

  The invention according to claim 7 is the image management apparatus according to any one of claims 1 to 6, further comprising input means capable of arbitrarily setting the browsing determination value. To do.

  According to an eighth aspect of the present invention, there is provided an image management method in the image management apparatus, the monitoring image storing step of storing the monitoring image captured by the monitoring target and captured by the user. A browsing number storage step of storing the number of times the monitoring image has been viewed by the user in association with the monitoring image, and displaying the stored monitoring image according to the number of times the monitoring image has been viewed. And a display control step of displaying on the display unit.

  According to a ninth aspect of the present invention, there is provided a monitoring image storage means for storing a monitoring image obtained by capturing a computer included in the image management apparatus, the monitoring image being captured by a monitoring target and viewable by a user, and the monitoring The number-of-views storage means for storing the number of times the image has been viewed by the user in association with the monitoring image, and the stored monitoring image is displayed in a display mode corresponding to the number of times the monitoring image has been viewed. It is made to function as a display control means to display on a part.

  The invention according to claim 10 is characterized in that the image management program according to claim 9 is recorded in a computer-readable manner.

  As described above, according to the present invention, the image management apparatus displays the stored monitoring image on the display unit in a display mode according to the number of times the monitoring image has been browsed. Can be managed.

It is a block diagram which shows the structure of the image management system S which concerns on this embodiment. It is a figure which shows an example of the content registered into the various databases constructed | assembled in the memory | storage part. It is a figure which shows an example of the content registered into the various databases constructed | assembled in the memory | storage part. It is a flowchart which shows operation | movement of the control part 15 in the search and browsing determination of a monitoring image. It is a flowchart which shows operation | movement of the control part 15 in the case of performing browsing determination. It is a figure which shows the example of a search screen in search mode. It is a figure which shows the display screen when the searched several still image is displayed on the monitoring image display part 26 using a scroll bar. It is a figure which shows the display screen when the searched several still image is displayed on the monitoring image display part 26 using a scroll bar. It is a flowchart which shows operation | movement of the control part 15 in the display based on the browsing history of a monitoring image. It is a flowchart which shows operation | movement of the control part 15 in the organization of the monitoring image. It is an example of a screen which shows the display mode of the surveillance picture according to browsing history. It is an example of a screen which shows the display mode of the surveillance picture according to browsing history. It is an example of a screen which shows the display mode of the surveillance picture according to browsing history. It is an example of a screen which shows the display mode of the surveillance picture according to browsing history. It is an example of a screen which shows the display mode of the surveillance picture according to browsing history. It is an example of a screen which shows the display mode of the surveillance picture according to browsing history. It is an example of a screen which shows automatic search and arrangement screen T3. It is an example of a screen which shows an information presentation screen.

  First, the best embodiment of the present application will be described with reference to the accompanying drawings. The embodiment described below is an embodiment when the present application is applied to an image management system that manages a monitoring image captured as a still image or a moving image.

[1. Overview of image management system configuration and functions]
First, with reference to FIG. 1, the configuration and functional overview of the image management system S according to the present embodiment will be described.

  FIG. 1 is a block diagram illustrating a configuration of an image management system S according to the present embodiment.

  As shown in FIG. 1, the image management system S includes a camera 1, a display 2, and an image management apparatus 3 (an example of the image management apparatus of the present application).

  The camera 1 and the image management device 3 can exchange data with each other by wire (for example, compatible with a USB method or HDMI (High-Definition Multimedia Interface) method) or wireless (for example, compatible with a method such as Bluetooth (registered trademark)). It is possible to transmit and receive (for example, still image data or moving image data, a monitoring image to be described later) and a control signal (for example, a signal for controlling the position or focus of the camera). The display 2 and the image management device 3 can also transmit and receive data and control signals (for example, a signal for adjusting the contrast of the display) to each other by wire or wireless.

  In the image management system S having such a configuration, the camera 1 is installed in a predetermined place such as a predetermined facility (transportation, commercial facility, public institution, etc.) and continuously in a predetermined imaging region of the facility. Is a so-called surveillance camera.

  As the camera 1, for example, an image (for example, a still image or a moving image) captured through an optical lens using a photographing element such as a CCD is converted into digital data (for example, data in JPEG, MPEG, AVI format, etc.). Converted and stored, well-known digital that can transmit / receive data or control signals to / from other electronic devices (general-purpose personal computer, etc., in this embodiment, image management apparatus 3) by wire or wireless as described above. A camera or digital video camera can be applied.

  In the present application, an image captured by the camera 1 is defined as a monitoring image, and the monitoring image includes a still image and a moving image.

  In addition, as long as the camera 1 has the above-described function, a mobile phone, a PDA, or other portable terminal device may be applied as the camera 1.

  Furthermore, in the above-described example, only one camera 1 is connected to the image management apparatus 3, but a plurality of cameras 1 may be installed in different places.

  Further, a so-called analog camera may be used as the camera 1. In this case, the image data is converted into image data by an apparatus having an A / D (Analog-Digital) conversion function and output to the image management apparatus 3.

  The display 2 is a display that includes a backlight, a liquid crystal, a color filter, a video signal processing unit, and the like, and displays a monitoring image output from the image management apparatus 3 as will be described in detail later.

  The image management apparatus 3 is an apparatus for managing the monitoring image, stores the monitoring image input from the camera 1, and details a predetermined image using an image management program installed in the image management apparatus 3 described later. A monitor image satisfying the search condition is searched, and a display process for allowing the user to browse is performed.

  The image management apparatus 3 includes a data receiving unit 11 that receives an input of a monitoring image, and an operation unit 12 that includes a keyboard, a touch panel, a jog dial, or other input mechanism and outputs information input from the user to the control unit 15 (this application). ), An image output unit 13 that outputs a monitoring image as output data to the display 2 by other appropriate methods such as a USB method, an HDMI method, and the like, and a storage unit 14 (the monitoring image storage unit of the present application) And a control unit 15. And the control part 15, the communication part 11, the control part 12, the image output part 13, and the memory | storage part 14 are connected via the bus | bath 16 provided with an input / output interface.

  The storage unit 14 is configured by, for example, a hard disk drive or the like, and stores the image management program of the present application in addition to the OS, various data, and the computer program responsible for the operation of the image management apparatus 3.

  Note that the image management program of the present application may be acquired wirelessly from another server device via a network, for example, and the image management program recorded on the recording medium corresponds to a communication protocol such as USB. It may be read via the interface of the method described above.

  In the storage unit 14, a saved image DB (database) 141, a search history DB 142, a matching image ID list DB 143, a browsing history DB 144, an image organization history DB 145, and an organized image ID list DB 146 are constructed.

  These databases may be constructed in a database server that manages the databases.

  Here, with reference to FIG.2 and FIG.3, the detail of the database constructed | assembled in the memory | storage part 14 is demonstrated. 2 and 3 are diagrams illustrating examples of contents registered in various databases constructed in the storage unit 14. In addition, in each figure, since what shows the same member name or member number has the same function and effect at least, description about an overlapping part is abbreviate | omitted.

  As shown in FIG. 2A, information related to a monitoring image input from the camera 1 is registered in the stored image DB 141, and for example, an image ID, an image name, and an image storage date / time are registered. . The image name and the image storage date / time can be determined for each image name and image storage date / time by the image ID.

  Here, the image ID is an identifier for identifying the monitoring image input from the camera 1 from other monitoring images. The image name indicates the name and format of the stored monitoring image (data). The image storage date / time indicates the date / time when the monitoring image was captured and stored.

  Further, as the format of the monitoring image to be stored, for example, various still image data such as JPEG format, Gif format, Tiff format, and various moving image data such as MPEG format, AVI format, etc. are applied. In addition, various still images or moving image data that can be browsed by the user can be stored.

  As shown in FIG. 2B, information related to a predetermined search condition is registered in the search history DB 142. For example, a search ID, a search condition, a search date and time, and the number of conforming images are registered. The search condition, the search date and the number of matching images (hereinafter referred to as “search condition information”) can be determined for each search condition information by the search ID.

  Here, the search ID is an identifier for identifying the search condition information from other search condition information. The search condition is, for example, a condition that is input based on an operation of a user or the like in order to search for a monitoring image that satisfies a predetermined condition (for example, the date and time when the monitoring image was captured). The search date / time indicates the date / time when the search of the monitoring image was executed. The number of matching images indicates the number (number of) of monitoring images searched based on the search condition.

  As shown in FIG. 2C, monitoring images that satisfy the search condition are registered in the matching image ID list DB 143. For example, the search ID and the image ID are registered in association with each other.

  By registering the search ID and the image ID in association with each other, a monitoring image satisfying a predetermined search condition is specified with reference to the saved image DB 141 and the search history DB 142.

  An example of a monitoring image specifying method that satisfies the predetermined search condition will be described.

  Four image IDs (100, 101, 102, and 103) are stored in association with the search ID 1 registered in the matching image ID list DB 143. Then, the search condition indicated by the search ID 1 is specified by referring to the search history DB 142. Then, by referring to the stored image DB 141, the monitoring image indicated by the image ID stored in association with the search ID 1 is specified.

  In this way, it is possible to identify the monitoring image (monitoring image indicated by the image ID) that satisfies the search condition indicated by the search ID 1 from the matching image ID list DB 143.

  As shown in FIG. 3D, information related to browsing determination indicating whether or not the searched monitoring image has been browsed is registered in the browsing history DB 144. For example, a search ID, a browsing start time, The browsing end time and the browsing determination result are registered.

  In the browsing start time, the date and time when browsing of the searched monitoring image is started is registered. In addition, as the browsing end time, the date and time when browsing of the searched monitoring image is ended is registered. As the browsing determination result, a browsing determination result indicating whether or not the searched monitoring image has been browsed is registered.

  Based on the browsing history DB 144, the number of times of monitoring image browsing is specified.

  An example of a method for specifying the number of times of monitoring image viewing will be described.

  First, with reference to the browsing history DB 144, a search ID indicating that the browsing determination result is TRUE (viewed) is extracted. Then, with reference to the matching image ID list DB 143, the image ID registered in association with the extracted search ID is extracted. In some cases, the image IDs extracted in this way include those indicating the same image ID. For example, it is a case where the search determination results include different search IDs indicating TRUE and indicating the same image ID. In this case, since the extracted image ID is browsed at least twice, the number of browsing times of the image ID is specified to be twice.

  Details of the browsing determination will be described later.

  As shown in FIG. 3E, the image organization history DB 145 stores information related to organization of stored surveillance images (including deletion or compression of surveillance images (data), and so on). For example, a history ID, an arrangement date, an executor, an arrangement method, a memory reduction amount, and a result are registered. The arrangement date and time, the executor, the arrangement method, the memory reduction amount, and the result (hereinafter referred to as “organization information”) can be determined for each arrangement information by the history ID.

  Here, the organization ID is an identifier for identifying the organization information from other organization information. The date and time when the monitoring image is organized is registered as the organization date and time. A user who gives an instruction to cause the control unit 15 (to be described later) to organize is registered as the performer. In the organizing method, the specific contents of the organizing are registered. In the memory reduction amount, how much free space is generated in the storage area by organizing (deleting or compressing) the monitoring images stored in the storage area of the storage unit 14 is registered. In the result, a processing result indicating whether or not the arrangement is completed without any problem is registered.

  As shown in FIG. 3 (F), information related to the organized monitoring images is registered in the organized image ID list DB 146. For example, a history ID and an image ID are associated and registered.

  By registering the history ID and the image ID in association with each other, the organized monitoring image is specified with reference to the image organization history DB 145.

  An example of the method for identifying the arranged monitoring images will be described. The history ID 1 registered in the organized image ID list DB 146 stores four image IDs (155, 156, 157, and 158) in association with each other. Then, the management image indicated by the history ID 1 by referring to the image organization history DB 145 is identified, and the monitoring image indicated by the image ID stored in association with the history ID 1 by referring to the saved image DB 141 is specified. It has become.

  Details of this arrangement will be described later.

  The control unit 15 is configured by a CPU, a ROM, a RAM, and the like (not shown), and the CPU reads and executes various programs stored in the ROM and the storage unit 14 so as to control the image management apparatus 3 in an integrated manner. By reading and executing the management program, the management program functions as the browsing count storage unit, display control unit, browsing determination unit, thumbnail image display unit, deletion unit, compression unit, and the like of the present application.

[2. Operation of control unit 15 in monitoring image search and browsing determination]
Next, the operation of the control unit 15 in the search and browsing determination of the monitoring image will be described by comparing FIGS. 4 and 5 with FIGS.

  First, the operation of the control unit 15 in search of a monitoring image and browsing determination will be described by comparing FIG. 4 and FIG.

  FIG. 4 is a flowchart showing the operation of the control unit 15 in monitoring image search and browsing determination, and FIG. 6 is a diagram showing an example of a search screen in the search mode.

  The image management program of the present application has a function of searching for a monitoring image satisfying a predetermined search condition based on a user input and allowing the user to browse. This function is called “search mode”. When the user searches for a monitoring image that satisfies a predetermined search condition and wants to view it, for example, the user gives an instruction to execute the “search mode” to the control unit 15 by operating the operation unit 12.

  Based on this execution instruction, the control unit 15 reads and executes the image management program, so that, for example, the search screen shown in FIG.

  As shown in FIG. 6, the search condition input unit 21, the monitoring image display unit 26, the monitoring image information display unit 28, and the organization instruction unit 29 are displayed on the search screen T <b> 1. The monitoring image information display unit 28 and the organization instruction unit 29 will be described later.

  In the search condition input unit 21, an image storage date input unit 22, a storage time input unit 23, a browsing frequency threshold input unit 24, and a search button 25 are set as a user interface (GUI) for inputting predetermined search conditions. ing.

  The image storage date input unit 22 and the storage time input unit 23 are user interfaces for searching for a monitoring image (an example of a predetermined search condition) captured within a predetermined period. By allowing the user to input the start date / time and the end date / time of the predetermined period, the predetermined period can be specified.

  A monitoring image captured on a predetermined date (including all time) by inputting a predetermined date (for example, 2011/10/20 to 2011/10/25) only to the image storage date input unit 22. Can be searched. It is also possible to input a predetermined time only to the storage time input unit 23 (for example, 12:00 to 13:00, etc.) to search for a monitoring image captured at a predetermined time.

  The browsing count threshold value input unit 24 is a user interface for searching for a monitoring image (an example of a predetermined search condition) indicating a predetermined browsing count. By allowing the user to input the number of times of viewing the monitoring image and the same number, more than, or less than this number of times of viewing, the predetermined number of times of viewing can be designated.

  Returning to the description of FIG. 4, when a predetermined search condition is input to the search condition input unit 21 by the user and the search button 25 is selected (for example, pressed by the pointer 27) according to the user's instruction (step S1), control is performed. The unit 15 starts searching for monitoring images (step S2). At this time, the control unit 15 issues (generates) a search ID for each predetermined search condition.

  Then, the control unit 15 searches for a monitoring image that satisfies a predetermined search condition (step S3).

  Specifically, when searching for a monitoring image captured within a predetermined period as a predetermined search condition, the control unit 15 refers to the stored image DB 141 and stores the image storage date and time indicating the predetermined period. The image ID registered in association with is extracted.

  Further, when searching for a monitoring image indicating a predetermined number of browsing times as a predetermined search condition, the control unit 15 specifies the number of browsing times of the monitoring image by the method described above, and extracts a monitoring image indicating the predetermined number of browsing times. To do.

  Then, the control unit 15 registers (records) the search history in the search history DB 142 (step S4). Specifically, the control unit 15 registers the issued search ID and the search condition information in association with each other in the search history DB 142.

  When the monitoring image is not searched (the number of matching images is 0) (step S5: YES), the control unit 15 ends the process.

  On the other hand, when a monitoring image is searched (step S5: NO), the control unit 15 executes browsing determination (steps S6 to S11).

  Here, the browsing determination will be described.

  In the search mode, the search image that satisfies a predetermined search condition and is searched is displayed on the monitor image display unit 26. A plurality of monitoring images are searched for in the monitoring image display unit 26 in FIG. 6 and are displayed as so-called thumbnails (images reduced to display a large number of images as a list) (in the rectangle in the monitoring image display unit 26). Shown).

  If the monitoring image is a still image, for example, when the image displayed as a thumbnail is pointed with the pointer 27 (for example, clicked with the mouse, etc.), the pointed-in image is enlarged (for example, so-called pop-up display). (Displayed in a separate window). Further, even when the monitoring image is a moving image, when the image displayed as a thumbnail is instructed with the pointer 27, for example, the instructed moving image is reproduced.

  Then, the user views the enlarged still image or the reproduced moving image, and specifies the monitoring target captured in the still image or the moving image.

  In the example shown below for convenience of explanation, unless otherwise specified, the term “monitoring image” includes a still image or a moving image as a monitoring image, and in the case of a still image, A still image is referred to, and a moving image refers to a moving image as a monitoring image.

  Therefore, as an example of browsing determination, the control unit 15 indicates that the monitored image is displayed when the still image or the moving image as the searched monitoring image is indicated by the pointer 27 and the indicated image is enlarged or displayed. You may make it comprise so that it may judge that it was browsed.

  That is, a history that the searched monitoring image is designated by the pointer 27 (hereinafter referred to as “click history”) is recorded. And the control part 15 determines with the monitoring image in which a click history exists having been browsed already. That is, the control part 15 determines with having browsed once with respect to one click log | history.

  In addition, when the same monitoring image is enlarged or displayed a plurality of times, the monitoring image has click histories corresponding to the plurality of times. Therefore, when a plurality of click histories exist in the same monitoring image, the control unit 15 determines that the monitoring image has been browsed a number of times corresponding to a plurality of times.

  As another example of browsing determination, the control unit 15 calculates a browsing determination value based on a reference value for calculating a browsing determination value set in advance, and monitors based on the calculated browsing determination value. You may make it comprise so that it may determine whether the image was browsed by the said user.

  Here, the reference value for calculating the browsing determination value is taken as a monitoring image per unit quantity according to the type of monitoring image (still image, moving image, thumbnail displayed still image, etc.) described later. The period during which the monitored target is estimated to be specified by the user.

  The browsing determination value is a period during which it is estimated that the monitoring target captured in the monitoring image that is actually displayed is specified by the user.

  As described above, the user looks at the monitor image enlarged or reproduced and specifies the monitoring target imaged in the monitoring image. However, it may take some time to specify the monitoring target. is there.

  Therefore, from the viewpoint of reliably identifying the monitoring target and preventing the monitoring image from being omitted, the control unit 15 determines whether the monitoring image has been browsed by the user based on the viewing determination value. It has become.

  As an example of calculating the browsing determination value, a case where the monitoring image is a still image will be described.

  In this case, a predetermined display time for enlarging and displaying still images per unit quantity (for example, one still image) is set as a reference value for calculating the browsing determination value, and the reference for calculating the browsing determination value The browsing determination value is calculated based on the value. This browsing determination value is set as a period in which it is estimated that the monitoring target captured in the still image is specified by the user.

  Specifically, for example, when one still image is enlarged and displayed, when it is assumed that it takes 10 seconds as a period for which it is estimated that the monitoring target indicated in the still image is specified by the user, the browsing determination is performed. As a reference value for calculating the value, 10 seconds is set.

  When the browsing determination is performed, the control unit 15 calls 10 seconds as a reference value for calculating the browsing determination value, calculates the browsing determination value, and the still image is actually enlarged and displayed for 10 seconds. In this case, it is determined that the still image has been viewed by the user.

Note that the browsing determination value in this case can be changed as appropriate, and may be changed according to the display size of a still image, for example. The display size in this case is, for example, in the HTML tag,
<img src = "Still image name" width = "Screen horizontal size" height = "Screen vertical size">
The browsing determination value may be changed according to the values of width = "screen horizontal size" and height = "screen vertical size".

  As another calculation example of the browsing determination value, a case where still images as a plurality of monitoring images are searched and the searched plurality of still images are displayed as thumbnails on the monitoring image display unit 26 will be described.

  In this case, the monitoring target (the monitoring image per unit quantity described above) captured in one still image among the still images displayed as thumbnails serves as a reference for calculating the browsing determination value based on the time specified by the user. The browsing determination value is calculated according to the total number of still images displayed as thumbnails.

  That is, the browsing determination value in this case is calculated as a period during which it is estimated that all the monitoring targets captured in the still images displayed in thumbnails are specified by the user.

  Specifically, for example, a case where 16 (still) still images are displayed as thumbnails as shown in the monitoring image display unit 26 of FIG. 6 is considered.

  First, it is assumed that the monitoring target captured in one still image among the still images displayed as thumbnails is specified by the user. For example, the time for which the monitoring target captured in one still image is specified by the user is 5 seconds. This is a reference value for calculating the browsing determination value.

  Then, it is estimated that all the monitoring targets captured in each still image displayed in the thumbnail are specified by the user, the thumbnail is the time when the monitoring target captured in one still image is specified by the user. It can be considered that the time is multiplied by the number of all displayed still images. This is the browsing determination value.

  For example, as shown in the monitoring image display unit 26 of FIG. 6, when 16 (still) still images are displayed as thumbnails, the time for which the monitoring target captured in one still image is specified by the user is 5 Since it is seconds, 90 seconds, which is the time obtained by multiplying 5 by 16, is the time that is estimated to be specified by the user for all the monitoring targets captured in each still image displayed as a thumbnail. This calculated time is set as a browsing determination value.

  In this case, when the thumbnail-displayed display screen is displayed for 90 seconds, the control unit 15 determines that all the still images displayed as thumbnails have been viewed by the user.

  Note that the reference value of the browsing determination value in this case can be changed as appropriate. For example, the time when the monitoring target captured in one still image displayed as a thumbnail is specified by the user or the thumbnail is displayed. It may be changed according to the number of still images.

  As another calculation example of the browsing determination value, a case where a plurality of searched still images are displayed on the monitoring image display unit 26 using a scroll bar will be described.

  In general, information that does not fit within a single window in a window system (a mechanism on a computer that assigns a unique area (window) to each of a plurality of parallel tasks and multiplexes screen output, and software for it). A scroll bar is used to display.

  This Scroll Bar is a user interface that displays only a partial area of information that cannot be displayed (contained) within a single window, mainly in the window system, and moves the display area as necessary. (GUI).

  Here, with reference to FIG. 7 and FIG. 8, calculation of the browsing determination value when a plurality of searched still images are displayed on the monitoring image display unit 26 using a scroll bar will be described.

  7 and 8 are diagrams illustrating a display screen when a plurality of searched still images are displayed on the monitoring image display unit 26 using a scroll bar.

  As shown in FIG. 7, on the search screen T <b> 1, a plurality of searched still images cannot be displayed on the monitoring image display unit 26, and the scroll bar 100 is displayed on the monitoring image display unit 26.

  At this time, the number of searched still images is 24 (sheets), but since only 16 still images can be displayed on the monitoring image display unit 26, the scroll bar 100 is displayed on the monitoring image display unit 26. Yes.

  Since the scroll bar 100 is a known user interface, a detailed description thereof is omitted, but a scroll box (knob) 101 for scrolling up and down the content (monitoring image) displayed on the monitoring image display unit 26; A scroll button (arrow) 102 for scrolling the monitor image upward and a scroll button 103 for scrolling the monitor image downward are configured.

  FIG. 8A shows a still image displayed on the monitoring image display unit 26 before the scroll box 101 is slid downward or the scroll button 102 is instructed by the pointer 27.

  In order to confirm all the searched still images, the scroll box 101 is slid downward or the scroll button 103 is instructed by the pointer 27.

  Then, as shown in FIG. 8B, a still image that could not be displayed is displayed.

  When a plurality of searched still images are displayed on the monitoring image display unit 26 using a scroll bar, the user is displayed from the state shown in FIG. 8A to the state shown in FIG. 8B. It is considered that the user can specify the monitoring target captured in all the still images only after scrolling the still images.

  Therefore, in addition to the above-described calculation example of the browsing determination value when the thumbnail is displayed as the browsing determination value when the plurality of still images searched are displayed on the monitoring image display unit 26 using the scroll bar, When all the still images displayed on the monitoring image display unit 26 are scroll-displayed, the control unit 15 may determine that the monitoring image has been viewed by the user.

  Recording that all the still images displayed on the monitoring image display unit 26 are scroll-displayed is called a so-called scroll history. Then, the control unit 15 monitors whether or not the scroll display is performed, and when the scroll display is performed, the control unit 15 stores the scroll history.

  In other words, when a plurality of searched still images are displayed on the monitoring image display unit 26 using the scroll bar, in addition to the browsing determination value when thumbnails are displayed, the monitoring history is displayed when there is a scroll history. It is determined that the image has been viewed by the user.

  Further, as another example of calculating the browsing determination value, a case where the monitoring image is a moving image will be described.

  In this case, it is possible to set a predetermined reproduction time during which the moving image is reproduced, and set the predetermined reproduction time as a reference value for the browsing determination value.

  The reference value of the browsing determination value is set as a period during which it is estimated that the monitoring target captured in the moving image is specified by the user.

  Specifically, for example, when one moving image is played back, when it is assumed that it takes 30 seconds as a period for which it is estimated that the monitoring target indicated in the moving image is specified by the user, the viewing determination The standard value is set to 30 seconds.

  When the browsing determination is performed, the control unit 15 calls 30 seconds as a reference value for calculating the browsing determination value, calculates the browsing determination value, and the moving image is actually reproduced for 30 seconds. Is determined to have been viewed by the user.

  Note that the reference value of the browsing determination value in this case can be changed as appropriate. For example, it may be changed according to the recording time (total recording time) of the moving image.

  Moreover, the value used as the reference | standard of the browsing determination value demonstrated above may be preset, for example, and you may make it memorize | store in the memory | storage part 14, ROM, etc. FIG. Further, the user may be caused to input via the operation unit 12. And the control part 15 calculates a browsing determination value according to the detected still image or moving image etc. based on the value used as the reference | standard of this browsing determination value, and performs browsing determination.

  The browsing determination value described above may also be input by the user via the operation unit 12.

  Returning to the description of FIG. 4, the control unit 15 calculates a browsing determination value (step S <b> 6).

  An example of the calculation method of the browsing determination value is as described above, and the control unit 15 determines the reference of the browsing determination value according to the type of the monitoring image (a still image, a moving image, a still image displayed as a thumbnail, or the like). And a browsing judgment value is calculated.

  Then, the control unit 15 acquires (specifies) the monitoring image searched in Step S3 (Step S7) and displays the monitoring image on the display 2 (Step S8; see the monitoring image display unit 26).

  Further, the control unit 15 acquires and holds (stores) the time when the searched monitoring image is displayed on the monitoring image display unit 26 (display 2) as the display start time.

  Then, the control unit 15 makes a loop determination as to whether or not an instruction to end the display of the searched monitoring image has been input based on a user's instruction or the like (whether or not display has been ended based on the user's instruction or the like) (step S15). S9).

  When the end instruction is not input (step S9: NO), the control unit 15 continues displaying the searched monitoring image.

  On the other hand, when an end instruction is input (step S9: YES), the control unit 15 performs browsing determination (step S10).

  FIG. 5 is a flowchart showing the operation of the control unit 15 when browsing judgment is performed.

  In this operation, the control unit 15 performs the browsing determination described above.

  As shown in FIG. 5, first, the control unit 15 acquires the time when display of the searched monitoring image is ended as the display end time. Then, the difference between the display start time and the display end time described above is calculated (step S21).

  Then, the browsing determination value calculated (obtained) in step S6 is compared with the difference calculated in step S21 (step S22). This difference is the time when the monitoring image is actually browsed.

  If the difference calculated in step S21 is greater than or equal to the browsing determination value calculated in step S6 (step S22: YES), the control unit 15 determines that the user has browsed the monitoring image, and the image The browsing result is set to TRUE (step S23).

  When the difference calculated in step S21 is equal to or smaller than the viewing determination value calculated in step S6 (step S22: NO), the control unit 15 determines that the user has browsed the monitoring image, and the image The browsing result is set to FALSE (step S24).

  When the browsing determination is completed, the process proceeds to step S11, and the control unit 15 registers the search ID, the display start time, the display end time, and the browsing determination result as the browsing history in the browsing history DB 144, and as the matching image ID list, The image ID of the searched image is registered in the matching image ID list DB (DB is updated).

  In the present embodiment, the control unit 15 has been described as performing the browsing determination in the search mode, but the search mode is not provided, for example, monitoring is performed in a general file browsing mode (file browsing function) provided in the OS. An image may be displayed (one monitoring image is displayed or thumbnail display is included), and the control unit 15 may perform browsing determination.

[3. Operation of control unit 15 in display based on browsing history of monitoring images and arrangement of monitoring images]
Next, the operation of the control unit 15 in the display based on the browsing history of the monitoring image and the arrangement of the monitoring image will be described by comparing FIGS. 9 and 10 with FIGS.

  First, the operation of the control unit 15 in the display based on the browsing history of the monitoring image will be described by comparing FIG. 9 with FIGS.

  FIG. 9 is a flowchart showing the operation of the control unit 15 in the display based on the browsing history of the monitoring image, and FIGS. 11 to 16 are screen examples showing the display mode of the monitoring image according to the browsing history.

  The image management program of the present application has a function of changing the display mode of the surveillance image searched according to the browsing history. This function is called “browsing mode”. Further, the browsing history here mainly includes the number of browsing times.

  When a user searches for a monitoring image that satisfies a predetermined browsing history and desires browsing, for example, the user gives an instruction to execute the “browsing mode” to the control unit 15 by operating the operation unit 12.

  Based on the execution instruction, the control unit 15 reads and executes the image management program, so that, for example, a search screen shown in FIG.

  As shown in FIG. 11, a browsing search condition input unit 31, a monitoring image display unit 36, a monitoring image information display unit 28, and an organization instruction unit 29 are displayed on the search screen T <b> 2. The monitoring image information display unit 28 and the organization instruction unit 29 will be described later.

  In the browsing search condition input unit 31, an image storage date input unit 32, a storage time input unit 33, a browsing count threshold input unit 34, and a browsing status display button 35 are set as a user interface for inputting predetermined search conditions. ing.

  The image storage date input unit 32 has at least the same function as the image storage date input unit 22, the storage time input unit 33 has the storage time input unit 23, and the browsing count threshold input unit 34 has the same number of times as the browsing count threshold input unit 24. The description is omitted.

  Returning to the description of FIG. 9, the user inputs a predetermined search condition into the browsing search condition input unit 31 (step S31).

  Specifically, the storage date and time of the image to be searched, the browsing count threshold (predetermined browsing count. For example, if you want to search for an image with a browsing count of 5 or less, enter 5), and its range (above the threshold) Or set the following.

Then, when the browsing status display button 35 is selected by a user instruction, the control unit 15
For example, in accordance with the above-described method for specifying the number of browsing times of monitoring images, a monitoring image that satisfies a predetermined number of browsing times is searched.

  And the control part 15 acquires a browsing history (step S32).

  The browsing history acquisition method follows the above-described example. Specifically, the control unit 15 obtains a matching image ID list in which the browsing determination result is associated (linked) with the search ID of TRUE from the browsing history DB 144. Acquired from the compatible image ID list DB 143, the number of times of browsing is calculated for each image ID. For example, when data with an image ID of 100 is stored three times in the matching image ID list DB 143, an image with an image ID of 100 is viewed by the user three times.

  And the control part 15 calculates the browsing frequency of all the monitoring images (step S33).

  Specifically, the control unit 15 calculates the browsing count of all images based on the browsing count calculated in step S32 and all image IDs stored in the saved image DB 141.

  And the control part 15 searches the monitoring image which satisfy | fills the input frequency | count of the predetermined browsing (the image with more or less browsing frequency than a browsing frequency threshold value) (step S34).

  When the monitoring image that satisfies the predetermined number of browsing times is not found (step S34: NO), the control unit 15 displays a message that there is no target monitoring image (step S39).

  On the other hand, when a monitoring image satisfying a predetermined number of browsing times is searched (step S34: YES), the control unit 15 acquires the monitoring image from the saved image DB 141. Further, the browsing record of the image may be acquired from the browsing history DB 144.

  And the control part 15 displays the acquired monitoring image (step S36).

  Here, a display screen based on the browsing history of the monitoring image will be described with reference to FIGS.

  The control unit 15 in the present embodiment displays a monitoring image that satisfies a predetermined number of browsing times on the monitoring image display unit 36 in a display mode that corresponds to the number of times the monitoring image has been viewed.

  In the display screen examples shown in FIGS. 12 to 15, the monitoring image is changed in the display mode in the descending order of the browsing counts of browsing images indicating a predetermined browsing count or more.

  Furthermore, in the monitoring image display unit 36 shown in FIG. 12, as an example of a display mode corresponding to the number of times the monitoring image has been browsed, the outline frame of the monitoring image with a large number of browsing times becomes thicker. Is displayed thinly.

  In the monitoring image, a large number of browsing times may indicate an important imaging target from the viewpoint of monitoring.

  In the present embodiment, by changing the display mode of the monitoring image that seems to be important (for example, highlighting), the user who browses this is warned and the confirmation of the monitoring image does not occur. The monitoring image is appropriately managed.

  In the monitoring image display unit 36 shown in FIG. 12, for example, a monitoring image that looks at a predetermined number of browsing times and that has a large number of browsing times is displayed on the display frame 41 by thickening the outer frame of the monitoring image. ing. The monitoring image displayed on the display frame 41 decreases in the number of viewing times within a predetermined threshold (for example, the monitoring image displayed on the display unit 41 is displayed on the display frame 42 for 10 times or more). The monitoring image is viewed five times or more), and the outer frame of the monitoring image is narrowed in order, and is displayed in the display frames 42 to 44 in order.

  Further, in the monitoring image display unit 36 illustrated in FIG. 13, as an example of a display mode corresponding to the number of times the monitoring image has been browsed, the outline frame of the monitoring image having a large number of browsing times is blinked and displayed at a high speed (for example, the display frame). 51) The blinking display is delayed as the number of browsing times decreases (for example, the display frame 52 or the display frame 53). In the example illustrated in FIG. 13, the shorter the broken line interval of the outline frame of the monitoring image, the faster the blinking display.

  Further, in the monitoring image display unit 36 illustrated in FIG. 14, as an example of a display mode corresponding to the number of times the monitoring image is browsed, the display size of the monitoring image having a large number of browsing times is increased (for example, the display frame 61). The display size is reduced as the number of times decreases (for example, the display frame 62 or the display frame 63).

  In addition, in the monitoring image display unit 36 illustrated in FIG. 15, as an example of a display mode corresponding to the number of times the monitoring image has been browsed, the monitoring images are displayed in order from the number of viewing times.

  Specifically, in the monitoring image display unit 36 illustrated in FIG. 15, browsing is performed from the monitoring image 71 having a large number of viewing times to the monitoring image 75 in order, based on the control of the control unit 15 or based on the user's operation. The monitor images are displayed in order from the most frequently monitored images.

  In addition, the monitoring image display unit 36 shown in FIG. 16 is a monitoring image that looks at a predetermined number of times of browsing, and further changes the order in which the date and time when the browsing image was saved (image saving date and time) is displayed in ascending order. Yes.

  This is because the most recently stored monitoring image may indicate an important imaging target to be noted from the viewpoint of monitoring.

  In addition, in the example shown in FIGS. 12-15, it is said that it is the monitoring image which sees the predetermined | prescribed browsing frequency mentioned above, Comprising: The browsing frequency which shows what has many browsing frequency can be set arbitrarily. Not too long.

  In addition, in the examples shown in FIGS. 12 to 15, the display mode is changed in order from the one with the largest number of browsing, but the display mode is not limited to this, and the display mode is changed in the order from the one with the smallest number of browsing. You may make it make it.

  Returning to the description of FIG. 9, the control unit 15 checks whether or not a predetermined item in the organization instruction unit 29 is checked, and whether or not the execution button is instructed by the user (hereinafter referred to as “whether or not an organization instruction has been made”). Is monitored (step S37).

  The organizing instruction unit 29 is a user interface for organizing (for example, deleting or compressing) a predetermined monitoring image among the monitoring images stored in the storage unit 14.

  For example, the monitoring target indicated in the monitoring image with a large number of browsing times has already been specified by the user, and it may be preferable to delete it from the storage unit 14 from the viewpoint of effective use of the storage area. In addition, by deleting unnecessary monitoring images and organizing images effectively, it is possible to prevent omission of confirmation of browsing images to be browsed.

  Therefore, the control unit 15 arranges predetermined monitoring images.

  As shown in the organizing instruction unit 29, the organizing instruction unit 29 is given an instruction to delete or compress all the monitoring images stored in the storage unit 14 or monitoring images indicating a predetermined number of browsing times. A user interface that enables this is set. Here, the predetermined number of times of browsing includes that of a certain number of times of browsing, the following, or the same.

  And when the arrangement | positioning instruction | indication was not made (step S37: NO), the control part 15 complete | finishes a process.

  On the other hand, when the organization instruction is given (step S37: YES), the control unit 15 organizes the monitoring images (step S38).

  Here, with reference to FIG. 10, the arrangement of the monitoring images will be described.

  FIG. 10 is a flowchart showing the operation of the control unit 15 in organizing the monitoring images.

  As shown in FIG. 10, first, the control unit 15 acquires a method for organizing monitoring images (step S41).

  Specifically, as described above, the control unit 15 selects any of the monitoring images stored in the storage unit 14 or the monitoring images indicating a predetermined number of browsing times according to a user instruction using the organization instruction unit 29. Is selected and whether image deletion or compression is selected.

  When deletion is not selected as the organizing method (step S42: NO), the control unit 15 indicates all monitoring images stored in the storage unit 14 instructed by the user or a predetermined number of browsing times. A monitoring image compression process is executed (step S43). Since this compression process is a known technique, a detailed description is omitted, but as an example, it means that the monitoring image file is reversibly compressed (converted into a file format such as ZIP, RAR, LHA).

  Then, the control unit 15 registers the organized image information, the organized date and time, the organizing person, the organizing method, the memory amount compressed by the organizing, and the organizing result in the image organizing history DB 145 as the organizing status record (step S45). Thereafter, the saved image DB 141 is updated (step S46).

  On the other hand, when deletion is selected as the organizing method (step S42: YES), the control unit 15 deletes the target monitoring image (step S44) and records the organizing status.

  Specifically, the control unit 15 registers the organized image information, the organized date and time, the organizing performer, the organizing method, the memory amount reduced by the organizing, and the organizing result in the image organizing history DB 145 as the organizing status (step S45). . Thereafter, the saved image DB 141 is updated (step S46).

  As described above, in the present embodiment, the control unit 15 displays the monitoring image stored in the storage unit 14 on the monitoring image display unit 26 in a display mode according to the number of times the monitoring image has been viewed. Therefore, the monitoring image can be managed appropriately.

[4. Application example of image management apparatus 3]
As another application example, the control unit 15 may be provided with a function of automatically performing monitoring image search or automatic organization (a function of automatically performing the above-described surveillance image retrieval and organization).

  In this case, for example, the image management program has a function of executing automatic search or automatic arrangement of monitoring images. This function is referred to as “automatic search / organization mode”.

  When the user desires automatic search or automatic organization of monitoring images, the user gives an instruction to execute the “automatic search / organization mode” to the control unit 15 by operating the operation unit 12, for example.

  When the control unit 15 reads out and executes the image management program based on the execution instruction, for example, the automatic search / organization screen shown in FIG.

  The automatic search / organization screen T3 shown in FIG. 17 allows the user to execute an execution schedule, conditions for images to be searched (designation of image save time and number of browsing), presence / absence of arrangement after image extraction, and its method (deletion or compression). ), Etc., and a user interface that automatically organizes periodic images.

  Specifically, a schedule registration input unit 81, a contact registration input unit 82, a search condition setting input unit 83, and an automatic image organization input unit 84 are displayed on the automatic search / organization screen T3.

  The schedule registration input unit 81 is a user interface for inputting an execution schedule for automatic search image search or automatic organization, and includes a start date to be executed, an end time, an execution time, and whether or not to execute regularly Only or regularly) is displayed.

  The contact registration input unit 82 is a user interface for inputting a monitoring image search result or organization result notification destination, and displays items for inputting a contact and a mail address.

  The search condition setting input unit 83 is a user interface for inputting a condition for searching for a monitoring image, a target image input unit that is an input unit for specifying a monitoring image as a search condition, and storing a monitoring image A storage time input unit for inputting the received time and a browsing frequency input unit for inputting the monitoring image browsing frequency are displayed.

  The input unit 84 for automatically organizing images is a user interface for instructing whether or not to automatically organize the monitoring images, and this automatic organization is executed by checking a check box.

  The input unit 84 for automatically organizing images displays an input unit for selecting deletion or compression as an image organizing method and an input unit for specifying a monitoring image to be organized.

  In an input unit for specifying monitoring images to be organized, it is possible to input whether all monitoring images are to be processed or monitoring images having a predetermined number of browsing times or more.

  In the example shown in the automatic search / organization screen T3, “2011/10/01 to 2011/12/31, every day at 17:00, images that are saved from 10 to 17:00 the previous day and the number of browsing times is 10 times or less are automatically extracted. And delete all ”.

  When the check box is not checked in the input unit 84 for automatically arranging images, that is, when it is selected that the monitoring images are not automatically arranged, a display screen T4 shown in FIG. 18 is displayed. .

  When it is selected that the monitoring images are not automatically arranged (when automatic image arrangement is disabled), the information window 91 is popped up after the automatic search for the monitoring images is completed, and extracted to the monitoring image display unit 26. The number of images and their information are displayed in a list on the monitoring image information display unit 28. The user can execute the above-described arrangement of the monitoring images by inputting a predetermined instruction using the arrangement instruction unit 29 (that is, the image can be manually arranged).

  The embodiments described above do not limit the invention according to the claims. And not all the combinations of the configurations described in the above embodiment are indispensable means for solving the problems of the invention.

  In the above-described embodiment, an example in which the present application is applied to the image management system S has been shown. However, the present invention is also applicable to, for example, a personal computer or an electronic device for home use. .

DESCRIPTION OF SYMBOLS 1 Camera 2 Display 3 Image management apparatus 11 Data receiving part 12 Operation part 13 Image output part 14 Storage part 15 Control part S Image management system

Claims (10)

Monitoring image storage means for storing the monitoring image which is a monitoring image captured by the monitoring target and can be browsed by the user;
The number-of-views storage means for storing the number of times the monitoring image has been viewed by the user in association with the monitoring image;
Display control means for displaying the stored monitoring image on a display unit in a display mode according to the number of times the monitoring image is viewed;
An image management apparatus comprising: The image management apparatus according to claim 1,
Browsing determination means for determining whether or not the monitoring image has been browsed by the user based on a browsing determination value indicating a period during which it is estimated that the monitoring target captured by the monitoring image is specified by the user; Further comprising
The browsing count storage unit stores the browsing count of the monitoring image when the browsing determination unit determines that the monitoring image has been browsed by a user. The image display device according to claim 2,
The stored monitoring image is a still image,
Thumbnail image display means for displaying a thumbnail image indicating one or a plurality of the still images; and
The browsing determination value is set according to the number of thumbnail images displayed,
The browsing determination unit determines that a still image corresponding to the thumbnail image is browsed by a user when the thumbnail image is displayed for a period indicated by the browsing determination value. apparatus. The image display device according to claim 2,
The stored monitoring image is a moving image,
The browsing determination value is set according to the recording time of the moving image,
The browsing determination unit determines that the moving image has been browsed by a user when the moving image is displayed for a period indicated by the browsing determination value. An image management apparatus according to any one of claims 1 to 4,
An image management apparatus, further comprising: an erasing unit that erases the monitoring image according to the number of times the monitoring image is browsed. An image management apparatus according to any one of claims 1 to 5,
An image management apparatus, further comprising: a compression unit that compresses the monitoring image according to the number of times the monitoring image is browsed. The image management apparatus according to any one of claims 1 to 6,
An image management apparatus further comprising input means capable of arbitrarily setting the browsing determination value. An image management method in an image management apparatus,
A monitoring image storage step of storing the monitoring image that is a monitoring image obtained by capturing the monitoring target and is viewable by the user;
The number-of-views storage step of storing the number of times the monitoring image has been viewed by the user in association with the monitoring image;
A display control step of displaying the stored monitoring image on a display unit in a display mode according to the number of times the monitoring image is viewed;
An image management method characterized by comprising: The computer included in the image management device
Monitoring image storage means for storing a monitoring image captured by the user, the monitoring image being captured by the monitoring target;
Browsing number storage means for storing the number of times the monitoring image has been viewed by the user in association with the monitoring image;
Display control means for displaying the stored monitoring image on a display unit in a display mode according to the number of times the monitoring image is viewed;
An image management program that functions as an image management program.   A recording medium in which the image management program according to claim 9 is recorded in a computer-readable manner.