JP4464221B2 - Document management system and thumbnail display method and program thereof - Google Patents

Description

  The present invention relates to a document management system, a thumbnail display method thereof, and a program, and more particularly, a document such as application data or image data input from paper using a scanner or the like is reduced and displayed (thumbnail display) on the computer. The present invention relates to a document management system managed by a graphical user interface, a thumbnail display method thereof, and a program.

  In recent years, computerization has progressed in enterprises, and a large amount of electronic data has come to exist. For example, a word processor application document or spreadsheet software data. Also, the management of paper documents is efficiently performed as electronic data by converting them into image data using a scanner or a copying machine having a scanner function.

  The document management system usually has a database, and an image document captured from a scanner or the like or an application document created by an application is held in the database. The user can access a desired document. In an office environment, a document of about A4 size is normally distributed, and it is normal to handle a document of that size in both a document management system, an application document, and a paper document.

As a technique related to the display of thumbnails in such a document management system, the thumbnails of all pages of a document are displayed in a list, and when the thumbnails of each of a plurality of pages selected from the displayed thumbnails are further displayed, the number of pages selected Is disclosed in which the size of the thumbnail is changed (see, for example, Patent Document 1).
JP 2002-175143 A

  However, Patent Document 1 described above describes changing the size according to the number of selected pages, but does not consider the paper size of the original document. Therefore, there is a problem that the user does not know the actual document size.

  In addition, in the case of a system that generates thumbnails so that the thumbnail size is a constant size regardless of the paper size of the document on which the thumbnail is based, there is a problem that the size of the document is unknown to the user at a glance.

  On the other hand, when considering that the paper size and the thumbnail size are proportional to these problems, there is a further problem that the size of the paper size that can be displayed by the thumbnail is limited.

  For example, when the paper size is A4 size (height: 297 mm), the thumbnail size is set to 100 pixels, and the reduction ratio α (= (thumbnail size) / (Paper size) = 100/297), the thumbnail size when the paper size is A3 size (height: 420 mm) is 420 × α = 420 × (100/297) = 141.4 pixels, Thumbnail size when A10 size (height: 37 mm) is 37 × α = 37 × (100/297) = 12.5 pixels, thumbnail size when A0 size (height: 1189 mm) 1189 × α = 1189 × (100/297) = 400.3 pixels.

  In other words, if the paper size of the base document increases in the order of A10, A4, A3, A0, the thumbnail size also increases in the order of 12.5 pixels, 100 pixels, 141.4 pixels, and 400.3 pixels. The user can grasp the size of the document at a glance.

  However, when the paper size of the base document is very small, such as the A10 size described above, the thumbnail size is only 12.5 pixels, and it is difficult for the user to recognize the document content indicated by the thumbnail. On the other hand, if the paper size of the base document is very large, such as the A0 size described above, the thumbnail size becomes too large at 400.3 pixels, so that most of the document list display area of the document management system is large. Therefore, there is a problem that the paper size that can be displayed by the thumbnail is limited.

  In this way, when a thumbnail proportional to the paper size is created based on an A4 size document, in the case of an A0 size document thumbnail, the thumbnail is displayed in the thumbnail display area of the document management system as compared with the A4 size document thumbnail. The number of thumbnails that can be displayed is 1/16. Therefore, there is a problem that the document thumbnail display area cannot be used effectively when displaying thumbnails of different paper sizes. Further, for example, when the thumbnail of the A0 size document is changed to the thumbnail of the standard size, the A4 size is 1/16 (vertical length is 1/4), and the thumbnail is excessively reduced. Therefore, the thumbnail size is difficult to recognize the contents of the document.

An object of the present invention, even when performing thumbnail display multiple documents of different paper sizes, reflecting the paper size in the thumbnail size, can and to effectively use the document thumbnail display area, and the user While looking at the line indicating the transition of the relationship between the paper size and thumbnail size on the size definition screen, the minimum paper size, the maximum paper size, the minimum thumbnail size corresponding to the minimum paper size, and the maximum it is possible to specify a maximum thumbnail size corresponding to the paper size is to provide a Yasukusu Ru document management system performs specified at the size definition screen and the thumbnail display method and a program.

The document management system according to claim 1, wherein the document management system displays thumbnails of documents stored in the document storage means , and includes at least a minimum paper size, a maximum paper size, and a minimum paper size corresponding to the minimum paper size. An input area for allowing the user to specify the thumbnail size and the maximum thumbnail size corresponding to the maximum paper size, and the transition of the relationship between the paper size and the thumbnail size between the minimum paper size and the maximum paper size. is between a display means for displaying a line to the size definition screen showing, the paper size of the document stored in the document storage means and said minimum paper size specified by the size definition screen and the maximum paper size A reduction ratio calculating means for calculating a reduction ratio of the document with respect to the paper size, and storing it in the document storage means If the paper size of the document is between the minimum paper size and the maximum paper size specified on the size definition screen, the thumbnail for the document is calculated using the reduction ratio calculated by the reduction ratio calculation means. If the paper size of the document stored in the document storage means is equal to or smaller than the minimum paper size specified on the size definition screen, the thumbnail of the minimum thumbnail size specified on the size definition screen If the paper size of the document stored in the document storage means is greater than or equal to the maximum paper size specified on the size definition screen, the thumbnail of the maximum thumbnail size specified on the size definition screen Thumbnail generation means for generating the reduction ratio, and the reduction ratio calculated by the reduction ratio calculation means is displayed on the size definition screen. Characterized in that it meets the reduction ratio of the thumbnail size for the paper size and the paper size indicated by the line showing the change of the relationship between thumbnail sizes.

3. The document management system according to claim 2, wherein in the document management system according to claim 1, the display unit further displays a straight line indicating each paper size between the minimum paper size and the maximum paper size on the size definition screen. When the user designates one point on the straight line displayed on the size definition screen, the thumbnail size of the paper size corresponding to the designated position is displayed so that the user can check To do.

Document management system according to claim 3, wherein, in the document management system according to claim 1 or 2, wherein the minimum paper size and the maximum paper size is designated by the user in the size definition screen, defined by the International Standards Organization characterized in that the Ruru selected from the standard paper size.

The document management system according to claim 4 is a line representing a transition of a relationship between the paper size and the thumbnail size displayed on the size definition screen in the document management system according to any one of claims 1 to 3. Is a monotonically increasing line .

Document management system of claim 5, said the in the document management system according to claim 4, the line representing the transition of the relationship between the sheet size and the thumbnail size to be displayed on the size definition screen is linear To do.

Document management system according to claim 6, wherein the said the in the document management system according to claim 4, the line representing the transition of the relationship between the sheet size and the thumbnail size to be displayed on the size definition screen is a curve To do.

Document management system according to claim 7, wherein, in the document management system according to claim 6, wherein the curve is characterized by a spline curve or a Bezier curve.

The document management system according to claim 8 is the document management system according to claim 6 or 7 , wherein the size definition screen displayed by the display unit further represents a transition of a relationship between the paper size and the thumbnail size. characterized in that it comprises an interface for a control point specified by the user for defining the curvature of the line.

The document management system according to claim 9 is the document management system according to claim 4 , wherein the size definition screen displayed by the display unit further includes a line representing a transition of a relationship between the paper size and the thumbnail size. An interface that allows a user to select a plurality of points and specifies a line representing a transition of the relationship between the paper size and the thumbnail size for each section divided by the selected points. To do.

The document management system according to claim 10 is the document management system according to any one of claims 1 to 9 , wherein each user is designated by the user on the size definition screen displayed on the display means. A storage unit that stores a plurality of data as thumbnail settings ; and an authentication unit that authenticates a user who has accessed the server , wherein the thumbnail generation unit stores thumbnail settings set by the authenticated user from the storage unit. call, and generates a thumbnail.

Document management system according to claim 11, wherein, in the document management system according to claim 10, characterized in that the servers are provided with the storage unit.

A document management system according to a twelfth aspect of the present invention is the document management system according to the tenth or eleventh aspect , wherein the created thumbnail has a format whose size can be changed.

A document management system according to claim 13 is the document management system according to claim 12 , wherein the format is FlashPix or JPEG2000 .

15. The thumbnail display method according to claim 14 , wherein the document management system displays a thumbnail of a document stored in the document storage means , wherein the document management system displays the display means, a reduction ratio calculation means, and a thumbnail generation means. And the display means allows the user to specify at least a minimum paper size, a maximum paper size, a minimum thumbnail size corresponding to the minimum paper size, and a maximum thumbnail size corresponding to the maximum paper size. An input area for displaying on the size definition screen a line representing a transition of a relationship between the paper size and the thumbnail size between the minimum paper size and the maximum paper size, and the reduction rate calculating means, paper size of the document stored in the document storage means is specified by the size definition screen Calculating a reduction rate with respect to the paper size of the document when it is in between the serial minimum sheet size and the maximum paper size, the thumbnail generation unit, the paper size of the document stored in the document storage means If it is between the minimum paper size and the maximum paper size specified on the size definition screen, a thumbnail for the document is generated using the reduction ratio calculated by the reduction ratio calculation means, and the document storage means If the paper size of the document stored in the document is less than or equal to the minimum paper size specified on the size definition screen, a thumbnail of the minimum thumbnail size specified on the size definition screen is generated, and the document storage means If the paper size of the document stored in is larger than the maximum paper size specified on the size definition screen, the size definition screen Generating a thumbnail of the maximum thumbnail size specified in step (i), and the reduction ratio calculated by the reduction ratio calculation means is a relationship between the paper size and thumbnail size displayed on the size definition screen. This is characterized in that it matches the reduction ratio of the thumbnail size for each paper size indicated by a line indicating the transition of .

The program according to claim 15 is a program for causing a computer to execute a thumbnail display method of a document management system for displaying a thumbnail of a document stored in a document storage means. The computer includes at least a minimum paper size and a maximum paper size. An input area for allowing the user to specify a size, a minimum thumbnail size corresponding to the minimum paper size, and a maximum thumbnail size corresponding to the maximum paper size, and between the minimum paper size and the maximum paper size Display means for displaying on the size definition screen a line representing the transition of the relationship between the paper size and the thumbnail size in the document, and the minimum paper in which the paper size of the document stored in the document storage means is designated on the size definition screen paper of the document when it is in between the size and the maximum paper size A reduction ratio calculating means for calculating a reduction ratio against the noise, and a paper size of the document stored in the document storage means is between the minimum paper size and the maximum paper size specified on the size definition screen Generates a thumbnail for the document using the reduction ratio calculated by the reduction ratio calculation means, and the paper size of the document stored in the document storage means is the minimum paper size specified on the size definition screen In the following cases, a thumbnail of the minimum thumbnail size specified on the size definition screen is generated, and the paper size of the document stored in the document storage means is the maximum paper size specified on the size definition screen. In the above case, as thumbnail generation means for generating a thumbnail of the maximum thumbnail size specified on the size definition screen The reduction ratio calculated by the reduction ratio calculation means is the size of each paper indicated by a line indicating the transition of the relationship between the paper size and the thumbnail size displayed on the size definition screen. It corresponds to the reduction ratio of the thumbnail size for .

According to the document management system according to claim 1, the thumbnail display method according to claim 14 , and the program according to claim 15 , at least a minimum paper size, a maximum paper size, and a minimum thumbnail corresponding to the minimum paper size An input area for allowing the user to specify the size and the maximum thumbnail size corresponding to the maximum paper size, and a line indicating the transition of the relationship between the paper size and the thumbnail size between the minimum paper size and the maximum paper size Calculates the reduction ratio for the document paper size when the paper size of the document displayed on the size definition screen and stored in the document storage means is between the minimum paper size and the maximum paper size specified on the size definition screen. The paper size of the document stored in the document storage means is the minimum paper size and maximum paper size specified on the size definition screen. If a thumbnail is generated for the document using the calculated reduction ratio and the document paper size stored in the document storage means is less than the minimum paper size specified on the size definition screen Generates a thumbnail with the minimum thumbnail size specified on the size definition screen, and if the paper size of the document stored in the document storage means is greater than or equal to the maximum paper size specified on the size definition screen, the size definition A thumbnail of the maximum thumbnail size specified on the screen is generated, and the reduction ratio calculated is the thumbnail for each paper size indicated by a line indicating the transition of the relationship between the paper size and thumbnail size displayed on the size definition screen since it matches the reduction ratio of the size, even in the case where the thumbnail display multiple documents of different paper sizes, support the paper size Reflected in the nail size and document thumbnail display area can be effectively used to, and while looking at the line that the user indicating the transition of the relation between sheet size and the thumbnail size on size definition screen, like size definition screen The minimum paper size, maximum paper size, minimum thumbnail size corresponding to the minimum paper size, and maximum thumbnail size corresponding to the maximum paper size can be specified. Ru done Yasukusu.

According to the document management system of the third aspect, the minimum paper size and the maximum paper size specified by the user on the size definition screen are selected from one of the standard paper sizes defined by the International Organization for Standardization. The user can easily grasp the paper size of the printed document.

According to the document management system of the fourth aspect , since the line indicating the transition of the relationship between the paper size and the thumbnail size displayed on the size definition screen is monotonically increasing, the size of the thumbnail is the actual paper size. It is possible to prevent the size from being reversed.

According to the document management system of claim 9, the size definition screen displayed by the display unit is further selected by allowing the user to select a plurality of points on a line representing the transition of the relationship between the paper size and the thumbnail size. Since the interface for allowing the user to specify a line representing the transition of the relationship between the paper size and the thumbnail size is provided for each section divided by the points, the degree of freedom for setting the thumbnail size by the user can be increased.

According to the document management system of the tenth aspect , the server is accessed, the data preset by the authenticated user is called from the storage means , and the thumbnail is generated, so that the thumbnail setting according to the user can be performed. .

According to the document management system of the twelfth aspect , since the thumbnail to be created is a format whose size can be changed, the thumbnail stored in the database in advance can be easily changed to the thumbnail size according to the user setting. Can do.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram schematically showing an apparatus configuration of a document management system according to the first embodiment of the present invention.

  In FIG. 1, a document management system 100 includes a document management server 102 and document management clients (hereinafter simply referred to as “clients”) 104 and 105, which are connected to each other via a network 101.

  The document management server 102 is connected to a database 103 in which documents and management data are stored.

  The clients 104 and 105 make a document access request to the document management server 102, and the document management server 102 appropriately accesses the database 103 to store and retrieve the document requested by the clients 104 and 105.

  Based on the information obtained from the server 102 by this document access request, the clients 104 and 105 relate to a document such as a reduced document display (hereinafter referred to as “thumbnail display”) or a document name recorded in the database 103. A list of attributes is displayed on the image display devices 104a and 105a.

  The document management system 100 in FIG. 1 executes a reduction rate calculation process in FIG. 11, which will be described later, a document size determination process in FIG. 13, and a document thumbnail generation process in FIG.

  In the present embodiment, the database 105 is connected to the document management server 102, but is not limited to this, and may exist and be connected to the clients 104 and 105 such as 106. In this case, the client 105 can access both the database 103 and the database 106.

  FIG. 2 is a block diagram showing in detail the configuration of the document management system 100 of FIG.

  2, the document management system 100 exists in the server 102 and the user interface unit 601, the thumbnail size setting unit 602, the input control unit 603, the thumbnail creation processing unit 604, and the output control unit 605 that exist in the clients 104 and 105. The database 103 includes a thumbnail size setting storage unit 606, an input document storage unit 608, and a thumbnail storage unit 609.

  The user interface unit 601 includes input devices such as a keyboard and a mouse, and issues a document reading command, a thumbnail size setting command (hereinafter referred to as “thumbnail size”), a thumbnail screen output command, and the like. When the output control unit 605 receives the thumbnail converted into the image information, the thumbnail is displayed on the image display devices 104a and 105a included in the clients 104 and 105 based on the received image information. Further, in response to a user input, a document management folder having a tree structure, which will be described later with reference to FIG. 3, is created, a document name is given to the read document, and a thumbnail of the read document is added to one of the created document management folders. Save it.

  The thumbnail size setting unit 602 sets a thumbnail size in accordance with a thumbnail size setting command from the user interface unit 601.

  The thumbnail size setting storage unit 606 stores setting information regarding the thumbnail size set by the thumbnail size setting unit 602.

  The input control unit 603 performs processing necessary for registering a document in the database 103 in accordance with a document reading command from the user interface unit 601, specifically, setting of a document compression rate and format conversion, reading of a document, etc. I do. Also, a thumbnail screen output command from the user interface unit 601 is transmitted to the thumbnail storage unit 609 via the thumbnail creation unit 604.

  The thumbnail creation processing unit 604 creates a thumbnail of the document read by the input control unit 603 based on the document compression rate set by the input control unit 603 and the thumbnail size stored by the thumbnail size setting recording unit 606. .

  The input document storage unit 608 stores the input document transmitted via the thumbnail creation unit 604.

  The thumbnail storage unit 609 stores the thumbnail created by the thumbnail creation unit 604, and transmits the stored thumbnail to the output control unit 605 in response to a thumbnail screen output command from the input control unit 603.

  The output control unit 605 performs processing for converting the thumbnails transmitted from the thumbnail storage unit 609 into image information for display on the image display devices 104a and 105a included in the clients 104 and 105, and performs input control on the converted image information. To the unit 603.

  In the present embodiment, the thumbnail size setting storage unit 606 is on the server 102 side, but may be on the client 104, 105 side. Further, the thumbnail size setting unit 602 and the thumbnail creation processing unit 604 may not be present in the individual clients 104 and 105 but may be uniquely managed and centralized on the server 102 side.

  FIG. 3 is a diagram used for explaining a thumbnail display method in the clients 104 and 105 in FIG.

  In FIG. 3, a document management display unit 300 is displayed on the screens of the image display devices 104 a and 105 a of the clients 104 and 105.

  The document management display unit 300 includes a tree display unit 301 that displays a document management folder having a tree structure created in response to a user input in the user interface unit 601, and a user interface among the folders displayed on the tree display unit 301. A document list display unit 302 that displays a list of thumbnails and document names of the documents in the folder selected by the user in the unit 601;

  For example, as illustrated in FIG. 3, when the user selects a folder “DEF” displayed in the tree display unit 301, thumbnails 304 to 307 of all the documents in the folder “DEF” and respective document names (“ Ah ”,“ Ii ”,“ Uu ”,“ Ee ”,“ Oo ”) are displayed on the document list display unit 302. At this time, if one screen cannot be fully displayed, the screen of the document list display unit 302 is scrolled and displayed.

  Each document management folder created in response to a user input has a folder name, and the tree display unit 301 can display the created document management folder without being limited to one.

  The database 103 of the server 102 manages documents using the document management folder having this tree structure.

  In the present embodiment, the thumbnail size is not a fixed size, but changes according to the paper size. Therefore, thumbnails 304 to 307 of various sizes are mixed on one screen so as to be displayed on the document list display unit 302.

  FIG. 4 is a diagram used to explain a modification of the thumbnail display method of FIG.

  The document management display unit according to this modification is basically the same as the document management display unit of FIG. 3 except that the document list display is displayed as a list instead of a thumbnail. The description is omitted.

  In FIG. 4, a document management display unit 400 is displayed on the screens of the image display devices 104a and 105a.

  The document management display unit 400 displays a document list so that the documents in the folder selected by the user interface unit 601 among the folders displayed on the tree display unit 301 can be listed in a list. Unit 402.

  The document list display unit 402 displays the attribute information related to the documents in the folder selected by the user as a list in a list format in the document name display unit 310, the update date display unit 311, and the size display unit 312. This attribute information need not be as shown in FIG. In addition, when one screen cannot be fully displayed, the screen of the document list display unit 402 is scrolled and displayed.

  FIG. 5 is a diagram showing a size definition screen displayed on the image display devices 104a and 105a in FIG.

  Here, the size of the thumbnails displayed on the screens of the image display devices 104a and 105a of the clients 104 and 105 is the size of the paper size of the read document, the image resolution of the read document, and the image display devices 104a and 105a. Determined based on screen resolution. Therefore, for example, when the screen resolution of the image display device 104a is 96 dpi and the screen resolution of the image display device 104b is 72 dpi, the thumbnail displayed on the image display device 104a even if the thumbnails are created with the same reduction ratio. Is displayed smaller on the screen than the thumbnail displayed on the image display device 104b.

  Therefore, hereinafter, the paper size is represented by a length measured in the vertical and horizontal directions in units such as standard paper sizes (A4, A5, etc.), mm, cm, and inch, and the thumbnail size is the vertical and horizontal size displayed on the image display device 104a. The thickness is represented by a length actually measured in units of mm, cm, and inch or by the number of pixels (pixels).

  In FIG. 5, a size definition screen 700 for defining the minimum size and the maximum size of thumbnails is displayed on the screens of the image display devices 104a and 105a of the clients 104 and 105.

  The size definition screen 700 includes a thumbnail size input area 710 for changing the minimum thumbnail size 701 and the maximum size 702, and a corresponding size input area 720 for associating the paper size with the thumbnail size.

  The thumbnail size input area 710 includes an arrow 705 that changes the size of the minimum thumbnail size 701 in accordance with the drag when the user drags with the mouse, and a thumbnail size in accordance with the drag when the user drags with the mouse. An arrow 706 that changes the size of the maximum size 702, a straight line 708 that represents the transition of the relationship between the paper size of the document and the thumbnail size, and a straight line 709 that represents the paper size of the document are provided. At this time, the minimum thumbnail size 701 cannot be made larger than the maximum thumbnail size 702, but when the minimum thumbnail size 701 and the maximum thumbnail size 702 are aligned, the same thumbnail is used for all paper sizes. Size is applied. Further, when the thumbnail size is changed, a reduction ratio indicating the thumbnail size with respect to the paper size may be displayed.

  Here, the straight line 708 is configured to be a straight line having an inclination of 1 when a thumbnail is created in full correspondence with the size of the paper size. For example, when the maximum size of the thumbnail is reduced, the slope of the straight line 708 becomes gentle as shown in FIG.

  Returning to FIG. 5, the thumbnail size of the corresponding paper size can be confirmed while the mouse button is pressed at one point on the straight line 709. At this time, when the paper size at the point pressed with the mouse button is one of the standard paper sizes, for example, as shown in FIG. 6, when the point 1402 is pressed with the mouse button, the thumbnail and the paper size inside the thumbnail are displayed. “A2” is displayed. If there is no corresponding paper size, that is, it is out of the fixed form, it is not displayed.

  In this embodiment, the thumbnail size is changed by dragging the arrows 705 and 706 with the mouse. However, the thumbnail size is not limited to this method as long as the thumbnail size can be changed. For example, the user can operate the keyboard or other slide bars. The thumbnail size may be changed. Further, the reduction rate may be directly input.

  The corresponding size input area 720 displays a list of settable sheet sizes, displays a list of settable sheet sizes, and a minimum sheet size determination unit 703 that determines the minimum sheet size for the user-selected size. A list of maximum paper size determination unit 704 that determines the maximum paper size for the user-selected size and a settable paper direction (portrait and landscape) is displayed in a list, and the paper direction is set in the user-selected direction. A paper orientation determining unit 707, check boxes 711 and 712, a button 713 for registering thumbnail size definition settings when the user clicks with the mouse, and a thumbnail size definition setting when the user clicks with the mouse. And a button 714 for canceling the registration. Here, the minimum paper size and the maximum paper size do not mean the upper and lower limits of the paper size that can be handled by the document management system 100, but mean the paper size corresponding to the thumbnail size range.

  At this time, the paper size selected by the user in the selection list 703 cannot be made larger than the paper size selected by the user in the selection list 704. The paper sizes displayed in the selection lists 703 and 704 are A size, B size, and named sizes (letters, legal, tabloids, government-made postcards, etc.) determined by the International Organization for Standardization (ISO). A standard paper size such as a size (10 ", 15", etc.). As described above, since the user-selected paper size among the standard paper sizes is determined as the paper size, the user can easily grasp the paper size of the thumbnail-displayed document.

  A check box 711 determines whether or not thumbnails are reduced and displayed at a reduction ratio determined in the thumbnail size input area 710 even for a paper size determined by the minimum paper size determination unit 703 or less. is there. If the check box is checked, thumbnails are created with the above reduction ratio even on a sheet having a size equal to or smaller than the minimum sheet size. If not checked, thumbnails are generated with the minimum thumbnail size 701.

  If the check box 712 is checked even if the paper size is larger than the paper size determined by the maximum paper size determination unit 704, a thumbnail is created with the above reduction ratio even if the paper size is larger than the maximum paper size. For example, a thumbnail is created with the maximum thumbnail size 702.

  As described above, in the present embodiment, when defining the minimum size and the maximum size of the thumbnail, among the paper sizes of the document in the database 102, the minimum paper size and the maximum paper size for performing thumbnail display are determined. Determine the size of each thumbnail.

  Here, in the size definition screen 700, the initial setting of the thumbnail size when the minimum paper size and the maximum paper size are determined in the minimum paper size determination unit 703 and the maximum paper size determination unit 704 is shown in FIG. As shown, the size is completely dependent on the paper size. If both check boxes 711 and 712 are checked, a thumbnail of a document whose paper size is smaller than the minimum paper size is created with the minimum thumbnail size as shown in FIG. Document thumbnails larger than the paper size are created with the maximum thumbnail size.

  In FIG. 5, since the paper direction is determined to be portrait by the paper direction determination unit 707, the thumbnail display portions 715 and 716 indicating the minimum and maximum thumbnail sizes in the thumbnail size input area 710 are displayed vertically (port However, when the paper direction determining unit 707 determines that the paper direction is landscape, the thumbnail display units 715 and 716 are displayed horizontally (landscape).

  Further, in the present embodiment, both the minimum size and the maximum size of the thumbnail are specified, but an embodiment in which only the minimum size or only the maximum size is specified may be used. Further, in the minimum paper size determination unit 703 and the maximum paper size determination unit 704, the user selectable paper sizes are all standard paper sizes. However, the size of the paper size is changed by using a paper size comparison process in FIG. By recognizing, it may be possible to designate an atypical paper size. Thus, if a non-standard paper size is designated, the user can freely determine the size.

  FIGS. 9A and 9B are diagrams used to describe the document management display unit 300 in FIG. 3. FIG. 9A shows a display state when the thumbnail size is initially set, and FIG. 9B shows the user setting of the thumbnail size. The display state after

  As shown in FIG. 9A, when the thumbnail size is the initial setting, the thumbnail displayed in the document list display unit 302 has a size that is completely proportional to the paper size. Here, the thumbnail 801 is a thumbnail whose paper size is A4, and the thumbnail 802 is a thumbnail whose paper size is A0.

  Here, since the A0 size thumbnail 802 occupies most of the document list display unit 302, the screen must be scrolled to display other documents in the selected folder.

  On the other hand, as shown in FIG. 9B, when the thumbnail size is set by the user, specifically, by dragging the arrow 706, the maximum thumbnail size 702 set for the A0 size is set to the size 701. When the size is reduced to 4 times, the document display unit 302 shown in FIG. 9B is almost completely filled with only one A0 size thumbnail displayed in FIG. 9A. Then, four thumbnails of A0 size can be displayed, and all the thumbnails displayed in the document list display unit 302 can be browsed without scrolling the screen or with minimal scrolling.

  In addition, when the check box 712 is checked for thumbnails for paper larger than A0 size, thumbnails having the same size as the A0 size are displayed, so the user can display thumbnails displayed in the document list display unit 302. Can be browsed without scrolling the screen or with minimal scrolling.

  Further, with respect to thumbnails for paper of A4 size or smaller, the user can easily recognize the contents of the document even if a document whose paper size is smaller than the minimum paper size is displayed as a thumbnail.

  FIG. 11 is a flowchart showing a procedure of reduction rate calculation processing executed by the document management system 100 of FIG.

  In this process, the reduction ratio is calculated according to the thumbnail size defined in FIG.

In FIG. 11, the initial reduction ratio α ₀ is obtained from the height of the set minimum paper size and the minimum thumbnail size 701 (FIG. 5) (step S1001).

Specifically, as shown in FIG. 10A, the initial reduction rate (α ₀ ) of the thumbnail size 701 determined by the user dragging the arrow 705 in FIG. , the minimum value of the height 403 of the paper size 401 _{h min0,} when the value of the height 404 of the thumbnail size 701 corresponding thereto and _{h min1,} given by the following equation.

α ₀ = h _min1 / h _min0 (1)
Since the height 404 of the thumbnail size 701 does not exceed the height 403 of the minimum paper size 401, the relationship 0 <h _min1 ≦ h _min0 is established, and therefore 0 <α ₀ ≦ 1.

  Returning to FIG. 11, next, it is determined whether or not the height of the minimum thumbnail size 701 is equal to the height of the maximum thumbnail size 702 (step S1002). Here, the information obtained by this determination, that is, the function of the paper size height h and whether or not α (h) is 0 is the thumbnail size setting storage unit 606 in the database 103 of the server 102. (FIG. 2). If the result of determination in step S1002 is equal, the reduction rate α (h) is set to 0 (step S1003). As a result, the thumbnail of the read document is created so as to have a constant size regardless of the paper size.

On the other hand, if the result of determination in step S1002 is not equal, a reduction weight γ ₀ is obtained (step S1004). Specifically, as shown in FIG. 10B, the reduction ratio of the thumbnail size 702 determined by the user dragging the arrow 706 in FIG. 5 with respect to the maximum paper size 501 is the initial reduction ratio ( It is a value obtained by multiplying α ₀ ) by a reduction weight (γ ₀ ).

Here, the value of the height 503 of the maximum paper size 501 is h _max0 , the value of the height 504 of the initial thumbnail size 502 obtained by multiplying the value of the height 503 by the initial reduction ratio α ₀ is h _max1 , and the maximum paper size. _Assuming that the value of the height 504 of the thumbnail size 702 corresponding to 501 is h _max2 , if the user does not set the maximum paper size 501 to be completely proportional to the paper size, it is the same for all paper sizes. When the thumbnail size is not set, the value h _max1 of the height 504 of the initial thumbnail size 502 multiplied by the reduction weight γ ₀ becomes the value h _max2 of the height 506 of the thumbnail size 702.

Here, the reduction weight γ ₀ is a value for performing weighting for thumbnail reduction according to the paper size. However, the reduction weight γ ₀ is not applied to the minimum thumbnail size. This is because when the user changes the minimum thumbnail size 701, the initial reduction ratio (α ₀ ) itself changes.

Accordingly, the reduction weight γ ₀ is obtained by the following equation.

γ ₀ = h _max2 / h _max1 (2)
Note that h _max1 is obtained by the following equation, where h _max0 is the reference paper size.

h _max1 = h _max0 × α ₀ = h _max0 × (h _min1 / h _min0 ) (3)
However, in the formula (2), h _max1 is used for simplification. Further, since it is generally not considered that the maximum thumbnail size 506 is larger than the size proportional to the maximum paper size 501, the relationship 0 <h _min2 ≦ h _min1 holds, and therefore 0 <γ ₀ ≦ 1. It becomes. However, since it is possible to make the maximum thumbnail size 506 larger than the initial thumbnail size 502, it may be 0 <γ ₀ except for the condition of γ ₀ ≦ 1.

Returning to FIG. 11, the reduction rate α (h) is obtained using the value of γ ₀ obtained in step S1004 (step S1005), and this process is terminated.

In step S1005, the reduction rate α (h) is expressed as α (h) = α ₀ × γ ₀ × {1- (h _max0 −h) / (h _max0 −h _min0 )} (4)
(0 <α ₀ <1, 0 <γ ₀ ≦ 1, h _min0 <h ≦ h _max0 )
It is calculated by the following formula. Here, 1− (h _max0 −h) / (h _max0 −h _min0 ) is an interval [h _min0 , h _max0 so that the minimum paper size is 0 and the maximum paper size is 1 for the paper size. ] Is normalized.

Furthermore, since h _min0 <h ≦ h _max0 , 0 ≦ 1-{(h _max0 −h) / (h _max0 −h _min0 )} ≦ 1,
0 ≦ α (h) ≦ α ₀ γ ₀ <1 (5)
It becomes. Hereinafter, 1 − {(h _max0 −h) / (h _max0 −h _min0 )} multiplied by γ ₀ is referred to as a secondary reduction ratio.

Here, thumbnails having a size corresponding to the paper size can be obtained by performing the first stage reduction with the initial reduction rate α ₀ and multiplying by the secondary reduction rate corresponding to the required paper size.

Therefore, α (h) can be used as the reduction ratio, and if the height of the paper size to be obtained is h and the width is w, the height _ht and width w _t of the thumbnail size can be obtained by the following equations.

  In the above description, the reduction ratio α (h) is obtained using the height of the paper size to be obtained and the height h of the thumbnail size, but the width may be used instead of the height.

The calculation formula used for obtaining the reduction ratio is a linear expression in the present embodiment, but the value of the reduction ratio α (h) is in the interval [0, 1] of the height h of the thumbnail size. Any expression that satisfies [0, λ ₀ ] (0 <λ ₀ ) may be used.

  As described above, according to the processing of FIG. 11, when the minimum size and the maximum size of the thumbnail are equal (YES in step S1002), the reduction ratio is set to 0 (step S1003), and when they are not equal (NO in step S1003). Since the reduction ratio (α (h)) as a function of the paper height h is set (step S1005), the user can freely change each of the minimum size and the maximum size of the thumbnail.

  Next, a case where the paper size of the document is an atypical paper size will be described.

  As described above, when the paper size of the document is a standard paper size, the standard paper size such as the minimum paper size and the maximum paper size is also selected from one of the standard paper sizes. Both sizes are similar, and it is possible to determine whether or not the paper size of the document is larger than the reference paper size only by comparing the heights.

  On the other hand, if the paper size of the document is an atypical paper size, the document paper size and the reference paper size will not be similar, so if the height of the document is compared, is the document paper size larger than the reference paper size? It cannot be judged. Even if the paper size of the document is a standard paper size, for example, A4 size (210 mm × 297 mm) and letter size (215.9 mm × 279.4 mm) are not similar, so the heights are compared. It is impossible to determine whether or not the paper size of the document is larger than the reference paper size.

For example, as shown in FIG. 12, when the standard paper size 10a and the non-standard paper sizes 10b and 10c are compared, the paper size of the paper 10a is indicated by a broken line on the paper 10b and the paper 10c. As can be seen, the width w _b and the height h _b of the paper 10b are relatively close to the width w _a and the height h _{a of the} paper 10a, so that the area is also close to the area of the paper 10a. Can be easily determined.

In contrast, the area of the sheet 10c is actually an area of the sheet 10a is substantially the same, the height hc of the sheet 10c is extremely higher than the height _{h a} of the sheet 10a, the width of the paper 10c Since wc is extremely narrow compared with the width w _a of the sheet 10a, it is difficult to visually determine whether the area is a value close to the area of the sheet 10a.

  Accordingly, the document management system 100 determines the document paper size by the following processing.

  FIG. 13 is a flowchart showing a procedure of document size determination processing executed by the document management system 100 of FIG.

In FIG. 13, the minimum (maximum) paper size (hereinafter referred to as “reference paper size”) has a height of h ₀ , a width of w ₀ , and an area of S ₀ (= h ₀ × w ₀ ). The height is h, the width is w, and the area is S.

  First, height, width, and area differences dh, dw, and ds are obtained between the reference sheet size and the document sheet size (step S1201).

  Next, it is determined whether or not the differences dh, dw, ds are all smaller than preset threshold values δh, δw, δs (step S1202). If they are smaller, the reference paper size and the document paper size are determined. Are the same size (step S1208), and this process ends.

On the other hand, if any one of the differences dh, dw, ds is equal to or greater than the threshold value as a result of the determination in step S1202, the height h and width w of the document paper size are the height h ₀ and width w of the reference paper size. _It is determined whether or not it is greater than ₀ (step S1203).

  As a result of the determination in step S1203, it is determined whether the height h and width w of the document paper size are smaller than the reference paper size (step S1204). It is determined that the size is larger than the paper size (step S1209), and the process ends.

  On the other hand, if it is determined in step S1203 that the height h and width w of the document paper size are less than or equal to the reference paper size, the height h and width w of the document paper size are both. It is determined whether or not it is smaller than that of the reference paper size (step S1204). If it is smaller, it is determined that the paper size of the document is smaller than the reference paper size (step S1210), and this processing is terminated.

  On the other hand, if it is determined in step S1204 that the document height h or width w is greater than or equal to the reference sheet size, the document sheet size height h or width w is twice or more that of the reference sheet size. (Step S1205), if it is twice or more, it is determined that the paper size of the document is larger than the reference paper size (step S1209), and this processing is terminated.

  On the other hand, as a result of the determination in step S1205, if neither the height h nor the width w of the document paper size is more than twice the reference paper size, the height h or width w of the document paper size is the reference paper. It is determined whether or not the size is less than ½ (step S1206).

  If the result of determination in step S1206 is less than ½, it is determined that the paper size of the document is smaller than the reference paper size (step S1210), and this processing is terminated.

  On the other hand, as a result of the determination in step S1206, if both the height h and the width w of the document paper size are ½ or more of the reference paper size, whether or not the document area s is larger than the reference paper size. Is determined (step S1207), and if it is larger, it is determined that the paper size of the document is larger than the reference paper size (step S1209), and this processing is terminated.

  On the other hand, if it is determined in step S1207 that the area s of the paper size of the document is equal to or smaller than that of the reference paper size, it is determined that the paper size of the document is smaller than the reference paper size (step S1210), and the process is terminated. To do.

According to the processing of FIG. 13, the document is based on the height h, width w, area S of the paper size of the document and the height h ₀ , width w ₀ , area S ₀ of the paper size of the reference paper size. Since it can be determined whether the paper size is the same (step S1208), large (step S1209), or small (step S1210), the server 102 can determine whether the paper size of the document is an atypical paper size. It is possible to recognize whether the size is the minimum paper size or less, the maximum paper size or more, or an intermediate size between them.

  FIG. 14 is a flowchart showing a procedure of document thumbnail generation processing executed by the document management system 100 of FIG.

  In the following processing, it is assumed that the check boxes 711 and 712 are checked.

  In FIG. 14, it is determined whether or not α (h) = 0 (step S1301). If α (h) = 0, the thumbnail size is a constant size regardless of the paper size. A thumbnail is created with a thumbnail size (step S1302), and this process ends.

  On the other hand, if α (h) = 0 is not satisfied in step S1301, it is determined whether the document paper size is larger than the minimum paper size by using the document size determination process of FIG. 13 (step S1303). Alternatively, if the size is small, the thumbnail is created with the minimum thumbnail size 701 (step S1304). If the thumbnail size is large, the document size determination process shown in FIG. Is discriminated (step S1305).

  If the result of determination in step S1305 is equal or larger, the thumbnail is created with the maximum thumbnail size (step S1306). If smaller, the document paper size is between the minimum paper size and the maximum paper size. Therefore, the reduction rate α (h) is acquired from the thumbnail setting storage unit 606, the thumbnail reduction process is performed based on α (h) (step S1307), and this process ends.

  As described above, according to the processing in FIG. 14, when the paper size of the document is equal to or smaller than the minimum paper size (NO in step S1303), the thumbnail size to be created is set to the minimum size of the thumbnail (step S1304). Is larger than the maximum paper size (NO in step S1305), the thumbnail size to be created is set to the maximum thumbnail size (step S1306), and the paper size is between the minimum paper size and the maximum paper size. (YES in step S1303, YES in step S1305), the thumbnail size is set using the reduction ratio α (h) (step S1307), and even when a plurality of documents with different paper sizes are displayed as thumbnails, Reflects the size to the thumbnail size and enables the document thumbnail display area It can be used.

  When the thumbnail size of the document is adjusted to the minimum size or maximum size of the thumbnail in step S1304 or step S1306, this alignment method can be performed by (1) “adjusting with the height as a reference”, (2) “with reference to the width. "Match", (3) "Match based on area", etc. In addition, (4) “Adjust the length for the larger of height and width” or conversely, “Adjust the length for the smaller of height and width” You may adjust the length with things. Thereby, even if the paper size of the document is not similar to the minimum paper size and the maximum paper size, the processing in step S1304 and step S1306 can be performed.

For example, as shown in FIG. 15, when the thumbnail size of a non-standard paper is matched with the minimum (maximum) size 16a of the thumbnail having the height h _a and the width w _a , first, the initial reduction ratio α ₀ is used. The thumbnail 16b of the document having the height h _b and the width w _b is created by reducing the size.

Next, the minimum (maximum) When combining a thumbnail size to the height of the size 16a is a shape similar thumbnail 16b, so that the height becomes h _a, thumbnail 16c thumbnail storage unit 609 to adjust the width (FIG. 2). Specifically, at this time, the width is w _b × (h _a / h _b ).

The minimum (maximum) When combining a thumbnail size to the width of the size 16a is a shape similar thumbnail 16b, so that the width is w _a, thumbnail 16d that adjust the height thumbnail storage unit 609 (FIG. 2). Specifically, at this time, the height _{h b × (w a / w} b).

Further, when the thumbnail size is adjusted to the area of the minimum (maximum) size 16a, a thumbnail storage unit 609 (FIG. 2) is similar to the thumbnail 16b, and the thumbnail 16e obtained by multiplying the height and width by the same reduction ratio ε. ). Specifically, at this time, the reduction ratio ε is (h _a · w _a / h _b · w _b ) ^1/2 .

  Which method is used to adjust the thumbnail size may be set by user selection, or may be set in advance by a program of the document management system 100.

  As described above, according to the present invention, when the client software in the document management system displays a list of documents as thumbnails, the user sets the maximum size and minimum size of the desired thumbnail. Even when displaying thumbnails, the document list display area of the client software can be used effectively.

  FIG. 16 is a diagram showing a size definition screen displayed on the image display devices 104a and 105a in the document management system according to the second embodiment of the present invention.

  The document management system according to the present embodiment has basically the same configuration as that of the first embodiment, except that a change in the reduction ratio between the minimum size thumbnail and the maximum size thumbnail is different. In the first embodiment, a linear expression with a slope of 1 that performs a monotonous change is used, but is defined by a curve. In FIG. 16, the same elements as those in FIG.

  In FIG. 16, the transition of the size of the thumbnail is not represented by a straight line 708, but is represented by a secondary B-spline curve 1702, as shown in FIG.

  The curve 1702 defines the degree of curve bending without changing the position of the start point / end point by dragging an arrow 1701 for determining a control point with a mouse or the like. In this embodiment, while this drag is being performed, the curve 1702 is displayed as a broken line, and the curve 1702 is determined when the mouse button is released.

Here, the quadratic B-spline curve means that the start point, end point, and control point are P ₁ , P ₃ , and P ₂ , respectively.

In the first embodiment, 1- (h _max0 −h) / (h _max0 −h _min0 ) is set to the interval [h _min0 so that the minimum paper size is 0 and the maximum paper size is 1 for the paper size. , H _max0 ] is normalized to [0, 1], and if the height of the paper size located between the minimum and maximum is h,
t (h) = 1− (h _max0 −h) / (h _max0 −h _min0 ) (8)
Can be defined as Note that t is t (h) because it depends on h. Also, by setting P ₁ to (0,0) and P ₃ to (1, γ ₀ ),

It becomes. Since the control point P ₂ (x ₂ , y ₂ ) is between the start point and the end point as shown in FIG. 16, 0 ≦ x ₂ ≦ 1 and 0 ≦ y ₂ ≦ 1.

  Accordingly, the determined curve 1702 in FIG. 16 does not change monotonically from the smallest thumbnail to the largest thumbnail size (height), and the document management is performed so that the curve 1801 as shown in FIG. 17 cannot be set. The system 100a is configured.

That is,
2 (γ ₀ −2y ₂ ) t (h) + 2y ₂ ≧ 0
⇔ t (h) ≦ y ₂ / (2y ₂ −γ ₀ ) (11)
I can say. In addition, since 0 ≦ t (h) ≦ 1, it is sufficient that t (h) ≦ 1 ≦ y ₂ / (2y ₂ −γ ₀ ). When the deformation is performed in consideration of the positive / negative of 2y ₂ −γ ₀ , 0 ≦ y ₂ ≦ γ ₀ is satisfied, but this is satisfied because the definition of y ₂ described above is satisfied. The maximum value at this time is when the t (h) = 1, the y = γ _0. From the above, y is monotonically increasing, and 0 ≦ y ≦ v <1, and y can be defined as a secondary reduction ratio, and therefore y is represented as γ (h).

The thumbnail reduction rate α for a specific size is defined as follows, where the initial reduction rate is α ₀ , the reduction weight is γ ₀ , and the desired paper size height is h.
α (h) = α ₀ × γ (h)
(0 <α ₀ <1, 0 <γ (h) ≦ 1, h _min0 ≦ h ≦ h _max0 ) (12)
It is calculated by the following formula.

Therefore, α (h) can be used as the reduction ratio, and if the height of the paper size to be obtained is h and the width is w, the height h _t and the width w _t of the thumbnail can be obtained by the following equations.

  In the above description, the reduction ratio α (h) is obtained using the height of the paper size to be obtained and the height of the thumbnail size, but the width may be used instead of the height.

In the second embodiment, the limits of the control point P ₂ are 0 ≦ x ₂ ≦ 1 and 0 ≦ y ₂ ≦ γ _0. However, in the quadratic B-spline curve formula, 0 ≦ t ( h) in the range of ≦ 1,

Y that is the control point P ₂ (x ₂ , y ₂ ) that satisfies the above may be used as the secondary reduction ratio.

  In the calculation of the reduction ratio in the present embodiment, the expression applied in step S1005 in the process (FIG. 11) according to the first embodiment is not Expression (4) but Expression (12). Except for this, it is calculated by the same process.

  In the present embodiment, a B-spline curve is used as the definition of the curve. However, the present invention is not limited to this, and another curve may be used as long as the condition of monotonic increase in a certain section is satisfied. For example, a Bezier curve may be used for the change in the reduction ratio between the thumbnail of the minimum size and the thumbnail of the maximum size.

Here, the Bezier curve means that the start point, end point, and two direction points are P ₁ , P ₄ , P ₂ , and P ₃ , respectively.
x = (1-t) ³ x ₁ + 3t (1-t) ² x ₂ + 3t ² (1-t) x ₃ + t ³ x _{4
^{y = (1-t) 3}} y 1 + 3t (1-t) 2 y 2 + 3t 2 (1-t) y 3 + t 3 y 4
(0 ≦ t ≦ 1)
... (15)
It becomes.

In the first embodiment, 1- (h _max0 −h) / (h _max0 −h _min0 ) is set to the interval [h _min0 so that the minimum paper size is 0 and the maximum paper size is 1 for the paper size. , H _max0 ] is normalized to [0, 1], and if the height of the paper size located between the minimum and maximum is h,
t (h) = 1− (h _max0 −h) / (h _max0 −h _min0 ) (16)
Can be defined as Since t depends on h, t (h) is used. Moreover, by setting P ₁ (0,0) and P ₄ to (1, γ ₀ ),

The thumbnails may be reduced by using y as the control point P ₂ (x ₂ , y ₂ ) and P ₃ (x ₃ , y ₃ ) satisfying the secondary reduction ratio.

  The thumbnail reduction methods of the first embodiment and the second embodiment described above may be combined. Thus, the user can select any of a plurality of points between the minimum size and the maximum size of the thumbnail, and can further change the method for determining the secondary reduction ratio.

  For example, as shown in FIG. 18, the user can select any two points 1904 and 1905 that are between the minimum size and the maximum size of the thumbnail in the thumbnail size input area 710, and are generated by this user selection. For the three sections 1901, 1902, and 1903, the secondary reduction rate between them may be set by the method according to the first embodiment or the second embodiment. Further, the points 1904 and 1905 may be movable, and the point serving as a reference for the change in the secondary reduction ratio may be moved. Thereby, the freedom degree of the setting of the thumbnail size by a user can be raised.

  Further, the data structure of the thumbnail size setting storage unit of the database 103 may be classified for each user, and the desired thumbnail display size may be set according to the user.

  FIG. 19 is a block diagram showing in detail the configuration of a modification of the document management system of FIG.

  The document management system 100a according to the present modification has basically the same configuration as that of the first embodiment, except that the thumbnail size setting stored in the thumbnail size setting storage unit is the first. In the embodiment, it corresponds to only a single user, but corresponds to a plurality of users. In FIG. 19, the same elements as those in FIG.

  The thumbnail size setting storage unit 2006 stores setting information about the thumbnail size set by the thumbnail size setting unit 602 for each user.

  When a user who operates the clients 104 and 105 accesses the server 102 via the user interface unit 601, the server 102 causes the output control unit 605 to display the ID / PW input screen on the image display devices 104a and 105a. This is done.

  After that, if the thumbnail size setting by the authenticated user is stored in the thumbnail size setting storage unit 2006, the setting is called to make the initial setting of the size definition screen.

  When the user inputs a document through the user interface unit 601, the input control unit 603 performs processing necessary for registration in the database 103 of the server 102. This is processing such as document compression processing, format conversion, and document-related information assignment. Here, the document is transferred to the input thumbnail creation unit 604, and a thumbnail is created from the input document based on the information set in the thumbnail size setting storage unit 2006. Thereby, the thumbnail setting according to the user can be performed.

  If the user is a new user added after the document registration, or if the thumbnail size setting is changed after the document registration, the output thumbnail control unit 605 stores it in the input document storage unit 608 of the database 103. Create a more appropriate thumbnail from the input document.

  In this modification, a thumbnail is created based on thumbnail setting information registered in advance at the time of input. However, monitoring may be performed so that the thumbnail is recreated each time the thumbnail setting information is changed.

  Further, representative setting information may be registered as thumbnail setting information on the database 103 so that the user can easily perform thumbnail setting.

  Furthermore, the thumbnail setting information may be created in response to a user request every time without being stored in the thumbnail size setting storage unit 2006.

  The thumbnail image format may be saved in a format whose size can be changed, for example, FlashPix or JPEG2000. Thereby, it is possible to easily change the thumbnail stored in the database in advance to a thumbnail size according to the user setting.

  In the present invention, a software program (the flowcharts of FIGS. 11, 13, and 14) that realizes the functions of the above-described embodiments is supplied to the CPUs in the document management systems 100 and 100a. This can be achieved by reading and executing the program.

  In this case, the program is directly supplied from a storage medium storing the program, or downloaded from another computer or database (not shown) connected to the Internet, a commercial network, a local area network, or the like. Supplied.

  The form of the program may be in the form of object code, program code executed by an interpreter, script data supplied to an OS (operating system), and the like.

  The present invention can also be achieved by supplying a CPU with a storage medium storing a software program for realizing the functions of the above-described embodiments, and reading and executing the program stored in the storage medium. can do.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention.

  As a storage medium for storing the program code, for example, ROM, RAM, NV-RAM, floppy (registered trademark) disk, hard disk, optical disk, magneto-optical disk, CD-ROM, MO, CD-R, CD-RW, DVD -ROM, DVD-RAM, DVD-RW, DVD + RW, magnetic tape, nonvolatile memory card, and the like.

  The function of the above-described embodiment is not only by executing the program code read from the computer, but the OS or the like running on the computer performs part or all of the actual processing based on the instruction of the program code. Can also be realized.

It is a figure which shows roughly the apparatus structure of the document management system which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the document management system of FIG. 1 in detail. It is a figure used for demonstrating the display method of the thumbnail in the client in FIG. It is a figure used for demonstrating the modification of the display method of the thumbnail of FIG. It is a figure which shows the size definition screen displayed on the image display apparatus in FIG. It is a figure used for demonstrating the display state of the size definition screen of FIG. It is a figure used for demonstrating the display state of the size definition screen of FIG. 6 is a graph showing the relationship between the thumbnail size defined on the size definition screen of FIG. 5 and the paper size of the document, and (a) shows the initial setting of the thumbnail size when the minimum paper size and the maximum paper size are determined. (B) shows the case where the check box is checked. FIGS. 4A and 4B are diagrams used for explaining the document management display unit of FIG. 3, in which FIG. 3A shows a display state when the thumbnail size is initially set, and FIG. Indicates. FIGS. 6A and 6B are diagrams used to explain a method of calculating a reduction ratio corresponding to a thumbnail size defined on the size definition screen of FIG. 5. FIG. This is used to explain the calculation of the reduction weight. It is a flowchart which shows the procedure of the reduction rate calculation process performed by the document management system of FIG. FIG. 6 is a diagram used for explaining a method of determining a document size with respect to a reference sheet size set on the size definition screen of FIG. 5. 3 is a flowchart illustrating a procedure of document size determination processing executed by the document management system of FIG. 1. 3 is a flowchart illustrating a procedure of document thumbnail generation processing executed by the document management system of FIG. 1. FIG. 15 is a diagram used for explaining a method of matching a thumbnail of a document with the minimum (maximum) size of a thumbnail in S1304 and S1306 of FIG. It is a figure which shows the size definition screen displayed on the image display apparatus in the document management system concerning the 2nd Embodiment of this invention. It is a figure used for demonstrating the display state of the size definition screen of FIG. It is a figure which shows the modification of the size definition screen of FIG. It is a block diagram which shows in detail the structure of the modification of the document management system of FIG.

Explanation of symbols

100, 100a Document management system 102 Server 103 Database 104, 105 Client 601 User interface unit 602 Thumbnail size setting unit 603 Input control unit 604 Thumbnail creation processing unit 606 Thumbnail size setting storage unit 608 Input document storage unit 609 Thumbnail storage unit

Claims (15)

In a document management system for displaying thumbnails of documents stored in a document storage means ,
An input area for allowing a user to specify at least a minimum paper size, a maximum paper size, a minimum thumbnail size corresponding to the minimum paper size, and a maximum thumbnail size corresponding to the maximum paper size; and the minimum Display means for displaying on the size definition screen a line representing the transition of the relationship between the paper size and the paper size and the thumbnail size between the maximum paper size;
Reduction of calculating the reduction rate for the paper size of the document when it is in between the paper size of the document stored in the document storage means and said minimum paper size specified by the size definition screen and the maximum paper size Rate calculation means;
When the paper size of the document stored in the document storage unit is between the minimum paper size and the maximum paper size specified on the size definition screen, the reduction rate calculated by the reduction rate calculation unit When the paper size of the document stored in the document storage means is equal to or smaller than the minimum paper size specified on the size definition screen, the thumbnail specified for the document is specified using the size definition screen. If the paper size of the document stored in the document storage means is greater than or equal to the maximum paper size specified on the size definition screen, a thumbnail having the minimum thumbnail size is generated and specified on the size definition screen. Thumbnail generation means for generating a thumbnail of the maximum thumbnail size;
With
The reduction ratio calculated by the reduction ratio calculation means matches the reduction ratio of the thumbnail size for each paper size indicated by a line indicating the transition of the relationship between the paper size and the thumbnail size displayed on the size definition screen. A document management system characterized by that. The display means further displays a straight line indicating each paper size between the minimum paper size and the maximum paper size on the size definition screen, and one point on the straight line displayed on the size definition screen is displayed by the user. 2. The document management system according to claim 1, wherein when instructed, the document management system displays the thumbnail size of the paper size corresponding to the instructed position so that the user can confirm. The minimum paper size and the maximum paper size is designated by the user in the size definition screen is selected from among the standard paper size defined by the International Standards Organization of claim 1, wherein the Rukoto Document management system. Line representing a change of the relationship between the sheet size and the thumbnail size to be displayed on the size definition screen, document management according to any one of claims 1 to 3, characterized in that a line of monotonically increasing system. 5. The document management system according to claim 4 , wherein a line representing a transition of the relationship between the paper size and the thumbnail size displayed on the size definition screen is a straight line. Document management system according to claim 4, wherein the line representing the transition of the relationship between the sheet size and the thumbnail size to be displayed on the size definition screen is curved. Document management system according to claim 6, wherein said curve, which is a spline curve or a Bezier curve. The size definition screen displayed by the display means further includes an interface for allowing a user to specify a control point for defining the degree of bending of a line representing the transition of the relationship between the paper size and the thumbnail size. 8. The document management system according to claim 6 or 7, wherein: The size definition screen displayed by the display unit further causes the user to select a plurality of points on a line representing a transition of the relationship between the paper size and the thumbnail size, and each section divided by the selected points. 5. The document management system according to claim 4, further comprising an interface that allows a user to designate a line representing a transition of a relationship between the paper size and the thumbnail size. For each user, a storage means for storing a plurality of data specified by the user in the size definition screen displayed on the display unit as a thumbnail setting,
Authentication means for authenticating a user who has accessed the server ,
The thumbnail generating unit, a document management system according to any one of claims 1 to 9 set thumbnail set by the authenticated user is retrieved from the memory means, and generates a thumbnail . Document management system according to claim 10 wherein the servers are characterized by comprising the storage means. 12. The document management system according to claim 10, wherein the created thumbnail has a format that can be resized. The document management system according to claim 12, wherein the format is FlashPix or JPEG2000 . In a thumbnail display method of a document management system for displaying a thumbnail of a document stored in a document storage means ,
The document management system includes display means, reduction rate calculation means, and thumbnail generation means,
Input for causing the display unit to specify at least a minimum paper size, a maximum paper size, a minimum thumbnail size corresponding to the minimum paper size, and a maximum thumbnail size corresponding to the maximum paper size. Displaying an area and a line representing a transition of a relationship between a paper size and a thumbnail size between the minimum paper size and the maximum paper size on a size definition screen;
The reduction rate calculating means, the paper size of the document when it is in between the paper size of the document stored in the document storage means and said minimum paper size specified by the size definition screen and the maximum paper size Calculating a reduction ratio for
When the thumbnail generation means has a paper size of the document stored in the document storage means between the minimum paper size and the maximum paper size specified on the size definition screen, the reduction ratio calculation means If the paper size of the document stored in the document storage means is equal to or smaller than the minimum paper size specified on the size definition screen, the size definition is generated. A thumbnail of the minimum thumbnail size specified on the screen is generated, and if the paper size of the document stored in the document storage means is equal to or larger than the maximum paper size specified on the size definition screen, the size definition Generating a thumbnail of the maximum thumbnail size specified on the screen;
Have
The reduction ratio calculated by the reduction ratio calculation means matches the reduction ratio of the thumbnail size for each paper size indicated by a line indicating the transition of the relationship between the paper size and the thumbnail size displayed on the size definition screen. A thumbnail display method of a document management system characterized by the above. In a program for causing a computer to execute a thumbnail display method of a document management system for displaying thumbnails of documents stored in a document storage means ,
The computer
An input area for allowing a user to specify at least a minimum paper size, a maximum paper size, a minimum thumbnail size corresponding to the minimum paper size, and a maximum thumbnail size corresponding to the maximum paper size; and the minimum Display means for displaying a line representing a transition of a relationship between the paper size and the maximum paper size between the paper size and the thumbnail size on the size definition screen;
Reduction of calculating the reduction rate for the paper size of the document when it is in between the paper size of the document stored in the document storage means and said minimum paper size specified by the size definition screen and the maximum paper size Rate calculating means, and
When the paper size of the document stored in the document storage unit is between the minimum paper size and the maximum paper size specified on the size definition screen, the reduction rate calculated by the reduction rate calculation unit When the paper size of the document stored in the document storage means is equal to or smaller than the minimum paper size specified on the size definition screen, the thumbnail specified for the document is specified using the size definition screen. If the paper size of the document stored in the document storage means is greater than or equal to the maximum paper size specified on the size definition screen, a thumbnail having the minimum thumbnail size is generated and specified on the size definition screen. As thumbnail generation means for generating a thumbnail of the maximum thumbnail size
A program for functioning,
The reduction ratio calculated by the reduction ratio calculation means matches the reduction ratio of the thumbnail size for each paper size indicated by a line indicating the transition of the relationship between the paper size and the thumbnail size displayed on the size definition screen. A program characterized by that.

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