JP4797154B2 - Image display method - Google Patents

Description

  The present invention relates to an image display method for displaying an image larger than a display screen.

  A map information system to which an image display method as a background technology is applied has a database in which map information is stored, and is used for a server that reads and transmits map information as needed, and a server according to a user's request. A terminal that requests map information designated by a person, receives map information from a server, and displays the map information on a display unit. The map information is image information of the size of the display unit, and the entire map is represented by a plurality of pieces of map information.

  Next, the operation of the map information system as the background art will be described. First, at the same time of activation, the terminal displays a reduced map overall image as a menu image on the display unit to the user. The entire map displayed as the menu image is demarcated based on the map information. When each demarcated area is an image area, an identification number that does not overlap is assigned to each image area. The user designates a desired image area from each image area in the menu image by selecting an identification number assigned to the image area. The terminal requests map information from the server based on the identification number assigned to the image area designated by the user.

  In response to a request from the terminal, the server reads the requested map information from the database and transmits it to the terminal. And a terminal receives the map information transmitted from the server, and displays this map information as a part of a display image on a display part as it is.

  However, since the map information system to which the image display method as the background technology is applied is configured as described above, the user designates desired map information for the terminal, and the terminal specifies the map information from the server. Is displayed on the display unit as a part of the display image, and then the user wants to refer to the joint portion between the map information and the map information adjacent to the map information in detail, the map information is Such a reference could not be made because it was simply divided and stored in the server database to correspond to the definition.

  In view of this, a map information system to which an improved image display method, which is an improved background technology, is configured such that map information is stored in a database of a server so that a portion of a display image can be displayed redundantly.

  However, the map information system to which this improved background image display method is applied stores the portions of a plurality of display images that overlap a predetermined portion as they are in the database of the server as map information. Compared to a map information system to which a display method is applied, it occupies disk space for storing map information by the amount of overlap, and in addition, processing for reading map information by the amount of overlap and transmission / reception of map information There is a problem that time is required for the processing.

  The present invention has been made to solve the above-mentioned problems, and can refer to any point on the map as smoothly as possible, and does not significantly increase the use of hardware resources by making the reference possible. An object is to provide an image display method.

The image display method according to the present invention is an image display method for displaying a large display image of the pixel size on the screen of the smaller pixel size than the pixel size of the display image, display the previous Kitai-out Do displaying images before Kiga surface reduced to a size capable, the menu image can be displayed by vector information of the display image, a plurality of rectangular shaped segment the demarcated region of the size of each region partitioned vertically and horizontally the same, this indicator A first step of displaying as a menu for assigning and selecting an identifier to each defined area of the menu image, and one defined area selected from each defined area of the menu image displayed by the first step If it is to form a display image of a rectangular shape by combining the three map information adjacent to the map information and the map information corresponding to the selected one defined regions 4 The acquired map information, and stores the four map information, a second step of displaying a display image of a rectangular shape by coupling the four map information, the four by the second step in case of displaying a different display image and the display image based on the selection of other defined region of the display image displayed by combining the map information, it is given to the selected other defined regions a first map information corresponding to the identifier to have a second adjacent to the second of said first map information for one of the defined regions selected along the direction of the selected other defined regions by step four map constituting the map information, the display image of the first map information and the third map information as well as a rectangular shape bonded to the fourth map information, the adjacent both to the second map information among the information, map information that is already stored Acquires map information except, of the third step and the third map information already stored by the map information and the second step stored in the step of storing the map information, the And a fourth step of combining the first map information , the second map information , the third map information, and the fourth map information to display as a rectangular display image. Can be reduced, and the number of interactions can be reduced by reusing a predetermined overlapping portion in the portion of the display image once displayed. Here, the identifier only needs to be identifiable, and is usually an identification number, an identification symbol, or the like.

The image display method according to the present invention is to divide a definition area to be used into smaller definition areas and use them when necessary.

(First embodiment of the present invention)
An image display system to which an image display method according to a first embodiment of the present invention is applied will be described with reference to FIGS. 1 is an overall configuration block diagram of an image display system according to the present embodiment, FIG. 2 is a menu image displayed on a display unit in the image display system according to the present embodiment, and FIG. 3 is an image display system according to the present embodiment. Map information displayed on the display unit, FIG. 4 shows a menu image and map information displayed on the display unit in the image display system according to the present embodiment.

The image display system according to the present embodiment includes a server 2 having a database 21 in which map information is stored, a communication unit 23 for performing communication, and a calculation unit 22 that reads and transmits map information as necessary, and a user A terminal having a control unit 12 for requesting map information designated by the user to the server 2 in response to the request, receiving the map information from the server 2 and displaying the map information on the display unit 15, and a communication unit 13 for performing communication 1, the terminal 1 requests the map information from the server 2 based on the identification number assigned to the defined area of the menu image designated by the user, and the server 2 requests the requested map information. The map information is transmitted to the terminal 1 together with some map information around the map information, and the plurality of map information received by the terminal 1 is combined and displayed on the display unit 15 as a part of the display image. Therefore, the map information is image information smaller than the size of the display unit 15 of the terminal 1.
The map information constitutes a predetermined portion in which parts of display images corresponding to adjacent demarcated areas overlap each other, and is stored in the database 21 in this form.

  For example, when the terminal 1 is a mobile terminal, the communication between the server 2 and the terminal 1 is a network such as the Internet via the base station 3 (including an exchange station, the same applies hereinafter) by the communication function of the normal terminal 1. Information is transmitted to the communication unit 23 of the server 2 via the network, the communication unit 23 receives information from the terminal 1, and conversely, the communication unit 23 of the server 2 transmits the terminal via the base station 3 via the network such as the Internet. Information is transmitted to 1, and the terminal 1 receives information from the server 2. Hereinafter, details of communication between the server 2 and the terminal 1 are omitted, and are simply expressed only by words of transmission / reception.

Next, the operation of the image display system according to this embodiment will be described. The map information used in the description of the operation is (mxn) / 4 pixels when the display unit size of the terminal 1 is mxn pixel size (horizontal m pixels, vertical n pixels). (= 2 × 2) sheets are combined and displayed on the display unit 15 of the terminal as a portion of the display image. The entire map has an MxN pixel size (horizontal M pixels, vertical N pixels), and is composed of 4 (MxN) / (mxn) pieces of map information.

  First, simultaneously with the activation, the control means 12 of the terminal 1 displays the reduced map overall image as a menu image on the display unit 15 to the user (see FIG. 2). The entire map displayed as the menu image is demarcated based on the map information. If each demarcated area is an image area, an identification number is assigned to each image area. The user designates a desired image area from a plurality of image areas in the menu image by selecting an identification number assigned to the image area. The control means 12 of the terminal 1 requests map information from the server 2 based on the identification number assigned to the image area designated by the user.

  In response to a request from the terminal 1, the computing means 22 of the server 2 reads out the map information close to the map information together with the requested map information from the database 21 and transmits it to the terminal 1. And the control means 12 of the terminal 1 receives the multiple map information transmitted from the server 2, combines the multiple map information, and displays it on the display unit 15 as a part of the display image.

  For example, when the user selects the identification number 5 of the menu image shown in FIG. 2, the control unit 12 of the terminal 1 determines the server based on the identification number 5 assigned to the image area designated by the user. 2 is requested for map information. The server 2 reads the map information f corresponding to the requested identification number 5 and the map information g, j, k adjacent to the map information f from the database 21 and transmits them to the terminal 1. The control means 12 of the terminal 1 receives the map information f, g, j, k related to the identification number 5 transmitted from the server 2, and combines the plural map information f, g, j, k to display the display unit 15 (Refer to FIG. 3A).

  Next, when the user requests the terminal 1 for a map adjacent to the right direction of the map displayed on the display unit 15, the control means 12 of the terminal 1 sends the map information to the server 2 based on the identification number 6. Request. The computing means 22 of the server 2 obtains the map information g, k that the terminal 1 already has from the map information g corresponding to the requested identification number 6 and the map information h, k, l adjacent to the map information. The removed map information h and l are read from the database 21 and transmitted to the terminal 1. The control means 12 of the terminal 1 receives the map information h and l transmitted from the server 2, and combines the plurality of map information h and l with the already existing map information g and k to display the part of the display image on the display unit 15. (See FIG. 3B).

  When the user selects identification number 5 on the menu image and the part of the display image shown in FIG. 3A is displayed on the display unit 15, the user further enlarges the part of the display image. When the user wants to refer to it, the terminal 1 is instructed to enlarge, and the part of the display image currently displayed on the display unit 15 becomes a menu image as shown in FIG. Similar to the selection in the menu image, the user selects the identification number 51 in the menu image, and the identification number assigned to the image area designated by the user by the control means 12 of the terminal 1 Based on 51, the server 2 is requested for map information. The server 2 reads the map information 5a corresponding to the requested identification number 51 and the map information 5b, 5e, 5f adjacent to the map information 5a from the database 21 and transmits them to the terminal 1. The control means 12 of the terminal 1 receives the map information 5a, 5b, 5e, 5f related to the identification number 51 transmitted from the server 2, and combines the multiple map information 5a, 5b, 5e, 5f to display the display unit 15 (Refer to FIG. 4B).

  Here, after the user selects the identification number 51 on the menu image and the corresponding portion of the display image is displayed, the user returns to the menu image and selects the identification number 53 on the menu image and displays the corresponding display image. When the user returns to the menu image and selects the identification number 52 on the menu image, the display image corresponding to the identification number 52 is displayed on the display unit 15. Since the terminal 1 already has map information, there is no map information transmitted from the server 2. Similarly, when the user sequentially selects the identification numbers 51, 53, 57, and 59 of the menu image, and sequentially displays the parts of the display image corresponding to the identification numbers 51, 53, 57, and 59 on the display unit 15. After this, no matter what identification number the user selects, the map information of the terminal 1 can be reused, so the map information is not transmitted from the server 2 and the part of the display image corresponding to the selected identification number Can be displayed on the display unit 15.

  As described above, in the image display system according to the present embodiment, the control unit 12 of the terminal 1 requests map information corresponding to the identification number in response to a user request, and the calculation unit 22 of the server 2 responds to this request. Based on the identification number, the map information corresponding to the identification number and the map information around the map information corresponding to the identification number are read from the database 21 and transmitted to the terminal 1, and the plurality of pieces received by the control means 12 of the terminal 1 are received. Since the map information is combined and displayed on the display unit 15 as a part of the display image, the recording area is smaller than storing the part of the display image in the database 21 as it is, and the map information already received by the terminal 1 The amount of map information received by the terminal 1 can be reduced by displaying adjacent parts of the display image using.

(Second embodiment of the present invention)
An image display system to which an image display method according to a second embodiment of the present invention is applied will be described with reference to FIG. FIG. 5 is an overall configuration block diagram of the image display system according to the present embodiment.
The image display system according to the present embodiment is configured in the same manner as the image display system according to the first embodiment. In addition to this configuration, the sea surface temperature estimated by the computing means 22, aerosol, water vapor, chlorophyll, In this configuration, physical quantities such as salinity are reflected in map information.

  The physical quantities such as the estimated sea surface temperature, aerosol, water vapor, chlorophyll, and salinity can be obtained by using an artificial satellite (not shown). The system using this artificial satellite includes an artificial satellite, a satellite information receiving device 31 that receives satellite information from the artificial satellite, a satellite information processing device 32 that processes the satellite information, a satellite information analyzing device 33 that analyzes the satellite information, The communication unit 34 is used for communication.

  The map information is compressed and stored based on block coding, and is compressed using a kind of block coding based on discrete cosine transform, such as JPEG compression. Further, this map information is not just map information but has added value, for example, a high-resolution radiometer (AVHRR: Advanced Very High Resolution of Radiometer) mounted on the weather observation satellite NOAA of the US Ocean and Atmosphere Station as an artificial satellite. ) And TIROS practical sounder (TOVS) infrared sounder (HIRS: Humidity Infrared Sounder), the satellite information receiving device 31 sends satellite information from a satellite to the 4-path x4 satellite per day, That is, 16 passes / day are received, and the received satellite information is processed and analyzed by the satellite information processing device 32 and the satellite information analysis device 33 to obtain the sea surface temperature distribution, water vapor distribution, and aerodynamics. Estimates the Le distribution, etc., the estimated information is the arithmetic unit 22 while others are sequentially reflected.

The image display system according to the present embodiment operates in the same manner as in the first embodiment, and in parallel with this operation, the map information is updated sequentially using a satellite every predetermined time.
According to the image display system of the present embodiment, satellite information is received from an artificial satellite by the satellite information receiving device 31, and this satellite information is estimated by processing and analyzing by the satellite information processing device 32 and the satellite information analyzing device 33. Since the calculation means 22 reflects the sea surface temperature distribution, water vapor distribution, aerosol distribution, etc. in the map information, the map information including a large amount of information reflecting additional information obtained using the artificial satellite is given to the user. It can be provided smoothly.

  Although the image display system according to the present embodiment reflects additional information based on satellite information obtained from an artificial satellite in map information, other information such as traffic information can also be reflected in map information. .

(Other embodiments)
The image display system according to the second embodiment can also be applied to nori culture, and information on the sea surface temperature of the day is extremely important for nori culture fishermen. Can be smoothly displayed on a small display screen of a mobile phone or the like.

1 is an overall block diagram of an image display system according to a first embodiment of the present invention. It is a menu image displayed on the display part in the image display system which concerns on the 1st Embodiment of this invention. It is the map information displayed on the display part in the image display system which concerns on the 1st Embodiment of this invention. It is a menu image and map information displayed on the display part in the image display system concerning a 1st embodiment of the present invention. It is a whole block diagram of the image display system which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Terminal 12 Control means 13 Communication part 15 Display part 2 Server 21 Database 22 Calculation means 23 Communication part 3 Base station 31 Satellite information receiver 32 Satellite information processing apparatus 33 Satellite information analyzer 34 Communication part

Claims (2)

In an image display method for displaying a display image having a large pixel size on a screen having a pixel size smaller than the pixel size of the display image,
Before the display image Do-out Kitai reduced to a size that can be displayed in front Kiga surface, a menu image and capable of displaying the display image by vector information of, the size of each area partitioned in a matrix with the same and classified the defined area into a plurality of rectangular, a first step of displaying a menu for selecting and applying the identifier to each defined region of the segment the menu image,
When one defined area is selected from each defined area of the menu image displayed in the first step, the map information corresponding to the selected defined area and the three sheets adjacent to the map information The four pieces of map information constituting the rectangular display image are acquired by combining the map information of the four, the four pieces of map information are stored, and the four pieces of map information are combined to form the rectangular display image. A second step of displaying as :
In case of displaying a different display image and the display image based on the selection of other defined area of the second display image displayed by combining four of the map information in step, other that it is the selected said the first map information corresponding to the identifier that is assigned to defined areas, along the direction of the other defined area is the selection for one defined area selected by the second step the a second map information adjacent to one of the map information, the first map information and the third map information as well as a rectangular shape bonded to the fourth map information, the adjacent both to the second map information Of the four pieces of map information constituting the display image, a third step of acquiring map information excluding the already stored map information and storing the map information ;
Of the map information saved in the third step and the map information already saved in the second step , the first map information , the second map information , the third map information, and the fourth map A fourth step of combining information and displaying it as a rectangular display image ;
Image display method characterized in that it comprises a. The image display method according to claim 1,
An image display method characterized in that when a defined area that has already been saved is used, the used defined area is divided into smaller defined areas.

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