Microfilm management system, microfilm management method, and microfilm management program

Abstract

To provide a new technology for digitizing and managing information recorded on microfilm. [Solution] The microfilm management system includes a strip image generation unit and a determination unit. The strip image generation unit generates strip images having a plurality of frames in the longitudinal direction of the microfilm. The strip images have overlapping frames at the longitudinal end portions of the nth strip image and the n+1th and / or n-1th strip images. The determination unit determines the degree of overlap between the longitudinal end portions of the nth strip image and the longitudinal end portions of the n+1th and / or n-1th strip images.

Description

[Technical Field]

[0001] The present invention relates to a microfilm management system, a microfilm management method, and a microfilm management program. [Background technology]

[0002] Conventionally, there is a technology for digitizing information recorded on microfilm.

[0003] For example, Patent Document 1 discloses a technique in which one frame recorded on a microfilm is scanned as one image and recorded in a computer. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-252291 Summary of the Invention [Problem to be solved by the invention]

[0005] Recently, there has been a demand for improved overview and page-turning speed to enable checking of all images recorded on microfilm. However, while the technology in Patent Document 1 can record one frame recorded on microfilm as one image, it cannot generate data for viewing a list of images including multiple frames recorded on microfilm.

[0006] The present invention has been made in view of the above-mentioned circumstances, and an object to be achieved by the present invention is to provide a new technology for digitizing and managing information recorded on microfilm. [Means for solving the problem]

[0007] [1] A microfilm management system for managing digitized microfilms, The microfilm management system includes a strip image generating unit and a determining unit, the strip image generating unit generates strip images having a plurality of frames in the longitudinal direction of the microfilm; In the strip images, there is an overlap of frames at the longitudinal end portions of the n-th strip image and the n+1-th and / or n-1-th strip images, the determining unit determines a degree of overlap between an end portion in the longitudinal direction of the n-th strip image and an end portion in the longitudinal direction of the n+1-th and / or n-1-th strip image. Microfilm management system.

[0008] [7] A microfilm management method executed by a microfilm management system for managing digitized microfilms, The microfilm management system includes a strip image generating unit and a determining unit, a step in which the strip image generating unit generates strip images having a plurality of frames in the longitudinal direction of the microfilm; In the strip images, there is an overlap of frames at the longitudinal end portions of the n-th strip image and the n+1-th and / or n-1-th strip images, the determination unit determines a degree of overlap between an end portion in the longitudinal direction of the n-th strip image and an end portion in the longitudinal direction of the n+1-th and / or n-1-th strip images, Microfilm management methods.

[0009] [8] A microfilm management program for managing digitized microfilms, causing a computer to function as a strip image generating unit and a determining unit; the strip image generating unit generates strip images having a plurality of frames in the longitudinal direction of the microfilm; In the strip images, there is an overlap of frames at the longitudinal end portions of the n-th strip image and the n+1-th and / or n-1-th strip images, the determining unit determines a degree of overlap between an end portion in the longitudinal direction of the n-th strip image and an end portion in the longitudinal direction of the n+1-th and / or n-1-th strip image. Microfilm management program.

[0010] This configuration makes it possible to generate strip images with high accuracy, each containing multiple frames to be recorded on the microfilm, improving the overview and page-turning speed for checking all the images recorded on the microfilm. Generating strip images makes it possible to check multiple frames, improving convenience and preventing frames from being omitted from being recorded on the microfilm.

[0011] [2] The strip image generating unit generates strip images having frames to be recorded consecutively on the microfilm. [1] The microfilm management system described in [1].

[0012] This configuration makes it possible to generate strip images with frames in the exact order they will be recorded on the microfilm, allowing the images recorded on the microfilm to be viewed in that exact order. By generating strip images with frames in the exact order, it is possible to generate comprehensive images with no frames missing from the microfilm.

[0013] [3] The microfilm management system includes a complementary unit, When the determining unit determines that the longitudinal ends are aligned, the determining unit further determines a distance between the frames at the longitudinal ends, When there is no gap between frames in the overlapping portion of the longitudinal end portion, the complementing unit complements the frame of the n-th strip image based on the frame of the n+1-th and / or n-1-th strip image. [1] or [2], the microfilm management system.

[0014] By adopting such a configuration, it is possible to generate one complete frame by complementing the incomplete frame at the longitudinal end, thereby improving the bird's-eye view of the strip image.

[0015] [4] The microfilm has frames of different sizes recorded in a longitudinal row, the strip image generating unit generates strip images at equal intervals in the longitudinal direction of the microfilm; A microfilm management system according to any one of [1] to [3].

[0016] With this configuration, even if frames of different sizes are recorded on the microfilm, strip images of the same length can be generated.

[0017] [5] The microfilm contains frames of different sizes, The length of the longitudinal end where the overlapping frames exist is 1.2 to 1.6 times the width of one frame recorded on the microfilm. A microfilm management system according to any one of [1] to [4].

[0018] By adopting such a configuration, it is possible to generate a strip image having a gap between frames at the longitudinal ends of the strip image.

[0019] [6] The microfilm has first and second frames of different sizes recorded on it; The first piece is smaller than the second piece, The length of the longitudinal end portion where the overlapping portions of the frames exist is 1.2 times or more and 1.6 times or less the width of one of the first frames. A microfilm management system according to any one of [1] to [5].

[0020] By adopting such a configuration, it is possible to increase the possibility that there will be gaps between frames at the longitudinal ends of the strip images, and further to prevent the longitudinal ends from becoming too long. [Effects of the Invention]

[0021] According to the present invention, a new technique can be provided for digitizing and managing information recorded on microfilm. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a block diagram showing the configuration of a microfilm management system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a diagram showing the hardware configuration according to the present embodiment. [Figure 3] FIG. 2 is a block diagram showing functional components in the present embodiment. [Figure 4] 3 shows an example of a data configuration stored in a storage unit in this embodiment. [Figure 5] 4 is a flowchart of a process for digitizing microfilm in this embodiment. [Figure 6] FIG. 2 is a diagram for explaining the digitization of microfilm in this embodiment. [Figure 7] FIG. 2 is a diagram for explaining the digitization of microfilm in this embodiment. [Figure 8] FIG. 2 is a diagram for explaining the digitization of microfilm in this embodiment. [Figure 9] FIG. 2 is a diagram for explaining the digitization of microfilm in this embodiment. [Figure 10] FIG. 2 is a diagram for explaining the digitization of microfilm in this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0023] The microfilm management system of the present invention will be described below with reference to the accompanying drawings, which illustrate preferred embodiments. However, the present invention may be embodied in many different forms and is not limited to the embodiments set forth herein.

[0024] For example, although the configuration, operation, etc. of a microfilm management system will be described in this embodiment, similar effects can be achieved by the executed methods (steps), devices, computer programs, etc. The program in this embodiment may be provided as a non-transitory computer-readable recording medium, or may be provided so as to be downloadable from an external server, or the program may be started on an external computer to implement its functions on a client terminal (so-called cloud computing).

[0025] In addition, in this embodiment, the term "unit" may include, for example, a combination of hardware resources implemented by a circuit in the broad sense and software information processing that can be specifically realized by these hardware resources. In this embodiment, "information" is represented by, for example, the physical value of a signal value representing voltage or current, the high or low value of a signal value as a binary bit set consisting of 0 or 1, or quantum superposition (so-called quantum bits), and communication and calculation can be performed on a circuit in the broad sense.

[0026] A circuit in the broad sense is a circuit realized by appropriately combining a circuit, circuitry, processor, memory, etc. That is, it includes a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), etc.

[0027] Microfilm records paper documents, historical documents, drawings, etc. at a reduced size compared to the originals. Microfilm records images of documents, drawings, etc. that have been photographed at reduced size. These photographed images are called frames.

[0028] On one microfilm, documents of different sizes, such as A3 and A4, are photographed in a reduced size and recorded as images (frames). Because the reduction ratio is the same, documents of different sizes have different frame sizes on the microfilm. For example, A3 size is twice the size of A4, so the frame size recorded on the microfilm is also twice as large.

[0029] Microfilms include roll film, microfilm jackets, microfiche, aperture cards, etc. In this embodiment, the microfilm is a roll film on which images are captured in the longitudinal direction of the film.

[0030] <System Overview> Fig. 1 is a block diagram showing the configuration of a microfilm management system according to this embodiment. As shown in Fig. 1, the microfilm management system 0 includes a microfilm management device 1, a scanner 2, and a user terminal 3. The microfilm management device 1 is configured to be able to communicate with the scanner 2 and the user terminal 3 via a network NW.

[0031] In this embodiment, the microfilm management device 1 operates as a server, and the user terminal 3 operates as a client terminal. This allows multiple users to check the strip images via their respective user terminals 3. The microfilm management device 1 may be a personal computer or the like, and may have the functionality of the user terminal 3.

[0032] The microfilm management device 1 may generate strip images using electronic data of the microfilm. In this case, the microfilm management device 1 may accept input such as the longitudinal length of the strip of the generated strip image. The microfilm management device 1 may also accept specification of the overlap length of the strip.

[0033] A general-purpose server computer, a personal computer, etc. can be used as the microfilm management device 1. It is also possible to configure the microfilm management device 1 using a plurality of computers.

[0034] The scanner 2 is composed of a scanning device for scanning microfilm and a control device such as a personal computer that runs a dedicated application. The scanner 2 scans the microfilm and generates electronic data of the microfilm (e.g., long data for one microfilm) including the frames recorded on the microfilm. The scanner 2 then generates strip images using the generated long data for one microfilm (data for the entire microfilm, including the spaces between frames). The scanner 2 may also generate strip images when scanning the microfilm and generating electronic data (without generating long data for one microfilm). The scanner 2 accepts input such as the longitudinal length of the strips of the generated strip images and a specification of the overlap length of the strips. The scanner 2 transmits the generated electronic data of the microfilm and / or strip images to the microfilm management device 1 and / or the user terminal 3.

[0035] The user terminal 3 displays the generated strip images, etc. The user may also input the longitudinal length of the strip of the generated strip image, etc. via the user terminal 3. The user terminal 3 may transmit data received from the scanner 2 and / or information accepted from the user to the microfilm management device 1.

[0036] In this embodiment, the network NW is an IP (Internet Protocol) network, but there is no restriction on the type of communication protocol, and there is also no restriction on the type and scale of the network.

[0037] <Hardware configuration> Fig. 2 is a hardware configuration diagram. As shown in Fig. 2(a), the information processing device 10 (microfilm management device 1) has a control unit 101, a memory unit 102, and a communication unit 103, which are used to perform the functions of each unit and each process.

[0038] The control unit 101 includes one or more processors such as a CPU (Central Processing Unit), and controls the overall operation and processing of the information processing device 10 by executing the microfilm management program of the present invention, the OS (Operating System), browser software, and other applications.

[0039] The storage unit 102 may be a hard disk drive (HDD), a solid state drive (SSD), a read only memory (ROM), a random access memory (RAM), a linear tape open (LTO), a tape drive, or the like, and stores the microfilm management program according to the present invention and data used when the control unit 101 executes processing based on the program. The control unit 101 executes processing based on the microfilm management program stored in the storage unit 102, thereby realizing the functional configuration described below.

[0040] The communication unit 103 controls communication with the network NW, and performs input necessary for operating the information processing device 10 and output related to the operation results.

[0041] As shown in FIG. 2(b), the terminal device 9 (scanner 2, user terminal 3) has a control unit 91, a memory unit 92, a communication unit 93, an input unit 94, and an output unit 95, and is used to perform the functions of each unit and each process.

[0042] The control unit 91 of the terminal device 9 includes one or more processors such as a CPU, and controls the overall operation and processing of the terminal device 9. The storage unit 92 of the terminal device 9 is an HDD, SSD, ROM, RAM, or the like, and stores the above-mentioned applications and data used when the control unit 91 executes processing based on a program.

[0043] A communication unit 93 of the terminal device 9 controls communication with the network NW. An input unit 94 of the terminal device 9 is a mouse, keyboard, etc., and inputs operation requests from the user / provider to the control unit 91. An output unit 95 of the terminal device 9 is a display, etc., and displays the results of processing by the control unit 91, etc.

[0044] <Functional components> 3, the microfilm management device 1 includes a receiving unit 11, a determining unit 13, and a complementing unit 14. The scanner 2 includes a transmitting unit 21 and a strip image generating unit 12. The user terminal 3 includes a transmitting unit 31 and a display processing unit 32.

[0045] The arrangement of these functional components is an example, and part of the functional components of the microfilm management device 1 may be arranged in one or more devices configured to be able to communicate with the scanner 2, the user terminal 3, and the microfilm management device 1. Also, part of the functional components of the scanner 2 may be arranged in one or more devices configured to be able to communicate with the microfilm management device 1, the user terminal 3, and the scanner 2. Similarly, part of the functional components of the user terminal 3 may be arranged in one or more devices configured to be able to communicate with the microfilm management device 1, the scanner 2, and the user terminal 3.

[0046] <Data structure> 4 shows an example of the data structure stored in the storage unit in this embodiment. The storage unit of the microfilm management device 1 stores microfilm information, strip image generation information, strip image information, complementary strip image information, and the like.

[0047] The arrangement of each data is an example, and some or all of the data stored in the memory unit of the microfilm management device 1 may be stored in one or more devices configured to communicate with the scanner 2, user terminal 3, and microfilm management device 1.

[0048] Microfilm information is information about digitized microfilm. As shown in Figure 4(a), microfilm information includes microfilm data, which is electronic data on the microfilm, and is managed by microfilm ID. In addition, microfilm information may include the volume of the microfilm data, the date and time the microfilm was digitized, etc. Furthermore, the format of the electronic data of the digitized microfilm may be any format.

[0049] The strip image generation information is information about strips used to generate strip images from microfilm. As shown in Figure 4(b), the strip image generation information includes the length of the strip to be generated and the length of the overlapping portion of the strip to be generated, and is managed by the microfilm ID.

[0050] The strip image information is information about the generated strip image. As shown in Figure 4(c), the strip image information includes electronic data of the strip (strip image) and is managed by microfilm ID. This makes it possible to manage which microfilm the strip image was generated from.

[0051] The complementary strip image information is information about the generated strip image and the complementary strip image. As shown in Figure 4(d), the complementary strip image information includes the generated strip image and the complementary complementary strip image, and is managed by the microfilm ID. In this way, it is possible to manage which microfilm the generated strip image and the complementary strip image were from.

[0052] <Processing flowchart> Fig. 5 is a flowchart of the microfilm digitization process in this embodiment, and Figs. 6 to 9 are diagrams for explaining the microfilm digitization process in this embodiment.

[0053] <Receiving electronic data> First, in step S501, the receiving unit 11 receives electronic data of the microfilm. Specifically, the scanner 2 scans the microfilm to generate electronic data (long data and / or strip images of one roll of microfilm), the transmitting unit 21 of the scanner 2 transmits the electronic data, and the receiving unit 11 of the microfilm management device 1 receives the electronic data. In the strip images, there is overlap of frames at the longitudinal ends of the nth strip image and the n+1th and / or n-1th strip images.

[0054] In this embodiment, the scanner 2 generates long data for one microfilm, the strip image generation unit 12 of the scanner 2 generates a strip image having multiple frames in the longitudinal direction of the microfilm, and the receiving unit 11 of the microfilm management device 1 receives the strip image.

[0055] Alternatively, the microfilm management device 1 may include a strip image generating unit 12. In this case, the scanner 2 generates long data for one microfilm, and the transmitting unit 21 transmits the long data to the receiving unit 11.

[0056] Furthermore, when the scanner 2 generates electronic data for a microfilm, it may generate strip images instead of generating data for a single long strip of microfilm. For convenience of explanation, this embodiment will be described using an illustration in which all frames recorded on the microfilm have been digitized. However, it is also possible that a microfilm may be digitized with some frames missing.

[0057] Figure 6(a) shows an electronic microfilm, where W1_n (n = 1, 2, ...) represent frames and W2 represents the gap between frames. The gaps between frames are the spaces between frames where no images are recorded. The gaps where no images are recorded (between frames) are filled with a single color, such as black. As shown in Figure 6(a), frames are recorded on the microfilm in rows along the length. When there is a single row of frames recorded on the microfilm, there will also be a single row of frames for the strip image, as shown in Figure 6(a). When there are multiple rows of frames recorded on the microfilm, there will also be multiple rows of frames for the strip image.

[0058] 6(b) shows a digitized microfilm, where W3_n (n=1, 2, . . .) represent strips, and the strip image generating unit 12 generates images of these strips (strip images). The strips W3_n (n=1, 2, . . .) are represented by rectangles that surround two diagonal lines.

[0059] <Generating strip images> For example, as shown in Figure 6(b), the strip image generation unit 12 generates a strip image represented by a strip W3_1 having a plurality of frames W1_1 to W1_5 in the longitudinal direction of the microfilm. As shown in Figure 6(b), the strip may include an incomplete frame (frame W1_5). As shown in Figure 6(b), the strip image generation unit 12 generates a strip image having frames W1_1 to W1_5 that are recorded consecutively on the microfilm.

[0060] Furthermore, the strip image generation unit 12 generates strip images of multiple strips W3_1, W3_2, ... as shown in Figure 7(a). By using strip images including multiple frames, users can check multiple frames from one data, improving the overview for checking electronic data. Furthermore, since a strip includes multiple frames, the number of times users have to turn pages when checking frames can be reduced, improving the page turning speed.

[0061] Figure 7(b) shows a digitized microfilm, where the rectangular areas W4_n (n=1, 2, ...) surrounding the diagonal lines represent overlapping frames of two strip images. In Figure 7(b), there is an overlapping area W4_1 where parts of the frames of strips W3_1 and W3_2 overlap. Strip W3_2 has an overlapping area W4_1 with strip W3_1 and an overlapping area W4_2 with strip W3_3.

[0062] The strip image generating unit 12 generates a plurality of strip images of strips W3_n (n=1, 2, . . . ) having overlapping portions W4_n (n=1, 2, . . . ) as shown in FIG. 7(b).

[0063] In this embodiment, the strip image generation unit 12 of the scanner 2 generates strip images based on the electronic data of the microfilm scanned by the scanner 2. Alternatively, the microfilm management device 1 may be equipped with the strip image generation unit 12 and generate the strip images. The scanner 2 or the microfilm management device 1 accepts the length of the strip and / or the overlap length of the longitudinal ends of the strip. Alternatively, the user may input the length of the strip and / or the overlap length of the longitudinal ends of the strip via the user terminal 3, and the transmission unit 31 may transmit the length accepted by the user to the scanner 2 or the microfilm management device 1.

[0064] By having a user or the like specify the length of the strips and generate strip images, the strip image generation unit 12 can generate strip images of strips of the same length. Also, by having a user or the like specify the overlap length of the longitudinal ends of the strips and generate strip images, the strip image generation unit 12 can generate strip images with the same overlap length. In other words, the strip image generation unit 12 can generate strip images that are equally spaced along the longitudinal direction of the microfilm.

[0065] For example, if a user specifies the length of the strip as "100 mm" and the overlap length (overlapping portion) of the strip as "30 mm," then in Figure 7(a), the strip image generation unit 12 generates a strip image in which the distance between the sides S2 of strip W3_1 is 100 mm and the distance between side S2 (right side) of strip W3_1 and side S2 (left side) of strip W3_2 is 30 mm.

[0066] Alternatively, when the scanner 2 scans the microfilm and generates electronic data of the microfilm, it may simultaneously generate strip images. Even in this case, it is conceivable that the user or the like may specify the length of the strips and / or the overlapping lengths of the strips.

[0067] <Judgment of strip images> 8 shows an example of a strip image generated from electronic data on a microfilm. The strip image generation unit 12 stores strips W3_n (n=1, 2, . . .) in the electronic data as strip images (image files, etc.) in a storage unit.

[0068] In step S502, the determination unit 13 determines the degree of overlap between the longitudinal end of the n-th strip image and the longitudinal end of the n+1-th and / or n-1-th strip images. Specifically, the determination unit 13 determines the degree of overlap using template matching.

[0069] The determination unit 13 may calculate a similarity between the longitudinal end of the n-th strip image and the longitudinal end of the n+1-th and / or n-1-th strip images, and make a determination using the similarity and a predetermined threshold. For example, the determination unit 13 determines that there is an overlap when the calculated similarity is equal to or greater than the threshold.

[0070] The longitudinal end of a strip (strip image) represents a certain length portion from the shorter side of the strip (rectangle). In Figures 6(b) and 7(a), the strip is composed of sides S1 and S2. Since side S2 is shorter than side S1, the longitudinal end represents a certain length portion from side S2.

[0071] For example, in the rectangular image of FIG. 8, rectangular strips W3_1 and W3_2 share an overlapping portion W4_1 where overlapping frames exist. The overlapping portion W4_1 is the longitudinal end of rectangular strip W3_1 and the longitudinal end of rectangular strip W3_2. In other words, in the rectangular image, the overlapping portion W4_1 of frames exists at the longitudinal end of each of rectangular strips (rectangular strip images) W3_1 and W3_2. Furthermore, the overlapping of frames at the longitudinal end may be an overlap of only a portion of the frames.

[0072] The determination unit 13 makes a determination by comparing a certain length portion (longitudinal end portion) from the shorter side of the strip (rectangle) in the strip image.

[0073] For example, in the strip images of Fig. 8, the determination unit 13 compares the longitudinal end of the strip W3_1 with the longitudinal end of the strip W3_2 to make a determination. Since the longitudinal end of the strip W3_1 includes parts of the frames W1_4 and W1_5, and the longitudinal end of the strip W3_2 includes parts of the frames W1_4 and W1_5, the determination unit 13 determines that parts of the frames of the respective strip images overlap.

[0074] On the other hand, the longitudinal end of strip W3_1 includes portions of frames W1_4 and W1_5, whereas the longitudinal end of strip W3_3 does not include portions of frames W1_4 and W1_5, so the determination unit 13 determines that the frames of each strip image do not overlap. Based on this determination, if a strip image of strip W3_2 is missing, this fact can be displayed. In addition, if some frames are missing, this fact can be displayed.

[0075] For example, if the determination unit 13 determines that the frames in each strip image do not overlap, it transmits information about the determination to the display processing unit 32. Then, based on the received information, the display processing unit 32 may display a message or the like indicating that the strip is missing. By determining whether or not a strip is missing in this way, the comprehensiveness of the electronic data on the microfilm can be improved.

[0076] The determination unit 13 determines the degree of overlap at the longitudinal ends of the strip images. If the determination unit 13 determines that the longitudinal ends match, it further determines whether there is a gap between frames in the overlapping portion. Because the gap between frames is filled with one color, the determination unit 13 can determine whether there is a gap between frames in the overlapping portion.

[0077] <Frame Completion> In step S503, if there is no gap between frames in the overlapping portion, the complementing unit 14 complements the frame of the nth rectangular image based on the frame of the n+1th and / or n-1th rectangular image.

[0078] Figure 9 shows an example of a strip image generated from electronic data on microfilm. The overlapping portion W14_1 in Figure 9 does not include a gap between frames. When the overlapping portion does not include a gap between frames, a frame split occurs, as shown in Figure 9. A frame split means that the entire frame of a certain frame is not included in either of the strip images. For example, when the overlapping portion W14_1 does not include a gap between frames as shown in Figure 9, the entire frame of frame W11_2 is not included in either strip W13_1 or W13_2.

[0079] On the other hand, the overlapping portion W4_1 in Fig. 8 includes the space between the frames, so no separation of the frames occurs. In Fig. 8, the complete frame W1_4 is included in the strip W3_1, and the complete frame W1_5 is included in the strip W3_2.

[0080] FIG. 10 shows (a) a strip image with no gap between frames in the overlapping portion and (b) a complemented strip image. Because there is no gap between frames in the overlapping portion W14_1, the complementing unit 14 complements the strip W13_1 as shown in FIG. 10(b) based on a portion of the frame W11_2 that the overlapping portion W14_1 has in the strip W13_2. By complementing W5, the complementing unit 14 can generate a complemented strip including the complete frame W11_2, which can be stored in the memory unit as a complemented strip image. Generating a complete frame can improve the overview when a user, etc., checks the frames.

[0081] <Setting the appropriate length of the overlapping part> Since there are documents of different sizes, such as A3 and A4, frames of different sizes may be recorded on microfilm, as shown in Figures 9 and 10. In Figures 9 and 10, frame W1_n (n = 1, 2, ...) and frame W11_n (n = 1, 2, ...) are different sizes.

[0082] The length of the overlapping portion of the longitudinal edge of the frames may be 1.2 to 1.6 times the length of a single frame recorded on the microfilm. Specifically, the length of the overlapping portion may be 1.2 to 1.6 times the length of the smaller frame.

[0083] For example, if all the frames recorded on the microfilm are the same size, if the length of the longitudinal end where the frames overlap (e.g., side S3 in Figure 8) is made longer than the width of one frame recorded on the microfilm (e.g., side S5 in Figure 8), the overlapping portion will always include the spaces between the frames (in Figure 8, the overlapping portion W14_1 is made up of sides S3 and S4, and the frame is made up of sides S5 and S6).

[0084] If the length of the longitudinal end where the overlapping frames exist (for example, side S3 in FIG. 8) is set to at least 1.2 times the width of one frame recorded on the microfilm (for example, side S5 in FIG. 8), the overlapping portion will always include the gap between frames (in FIG. 8, overlapping portion W14_1 is made up of sides S3 and S4, and the frame is made up of sides S5 and S6). In this case, since the overlapping portion will always include the gap between frames, the complement unit 14 does not need to complement the frames.

[0085] In other words, even if the frames recorded on the microfilm are different sizes, if the length of the longitudinal edge where the frames overlap (for example, side S3 in Figure 9) is set to at least 1.2 times the width of the largest frame recorded on the microfilm (for example, side S7 in Figure 9), the overlapping portion will always include the spaces between the frames (in Figure 9, overlapping portion W14_1 is made up of sides S3 and S4, and the largest frame is made up of sides S6 and S7). On the other hand, in this case, the overlapping portion will be too long, and if two smaller frames (made up of sides S5 and S6) are placed side by side, both will be included in the overlapping portion, which may require a user, etc., to check the same frame several times when checking the strip image.

[0086] For example, since the size of an A3 document is twice the size of an A4 document, when A3 and A4 documents are recorded on microfilm, the length along the longitudinal direction of the A3-sized microfilm (e.g., side S7 in Figure 9) will be twice the length along the longitudinal direction of the A4-sized microfilm (e.g., side S5 in Figure 9). Therefore, if the length along the longitudinal direction of the microfilm of the overlapping portion is set to 1.2 times or more the length along the longitudinal direction of the microfilm of the frame of the A3 document recorded on the microfilm (e.g., side S7 in Figure 9), it is possible that two frames of the A4 document will be included in the overlapping portion.

[0087] In other words, if the frames recorded on the microfilm are of different sizes, making the length of the overlapping portion along the longitudinal direction of the microfilm (for example, side S3 in Figure 9) more than 1.2 times the length of the largest frame recorded on the microfilm along the longitudinal direction of the microfilm (for example, side S7 in Figure 9) will increase the effort required for users and others to check, so it is preferable to make it more than 1.2 times the length of the smaller frame along the longitudinal direction of the microfilm (for example, side S5 in Figure 9).

[0088] Furthermore, by making the overlapping area 1.2 times or more the length of one frame, it becomes more likely that the overlapping area will include the entire space between that frame and the adjacent frame. For example, it becomes more likely that the overlapping area will include the entire space between frames W2 in Figure 6(a). Furthermore, to more reliably include the entire space between a frame and the adjacent frame, it is possible to make the overlapping area 1.3 or 1.4 times or more the length of one frame.

[0089] Furthermore, in order to reduce the effort required for users to check, it is preferable that the length of the overlapping portion is short. Therefore, it is conceivable to set the length of the overlapping portion along the longitudinal direction of the microfilm to 1.5 or 1.4 times or less the length of one frame recorded on the microfilm.

[0090] Since most documents are A4 size, it is conceivable to set the length of the overlapping portion along the length of the microfilm to between 1.2 and 1.6 times the length of the frame on which the A4 size is recorded. By using the length of the frame that is most likely to be recorded on the microfilm as the standard, it is possible to reduce the process of supplementing frames while preventing excessive burden on users and others for confirmation.

[0091] As described above, the configuration of the present invention can provide a new technique for digitizing and managing information recorded on microfilm. [Explanation of symbols]

[0092] 0 Microfilm Management System 1 Microfilm management device 11 Receiving unit 12 Strip image generation unit 13 Judgment section 14 Complementary Section 2. Scanner 3. User terminal NW Network

Claims

1. A microfilm management system for managing digitized microfilms, The microfilm management system includes a strip image generating unit and a determining unit, the strip image generating unit generates strip images having a plurality of frames in the longitudinal direction of the microfilm; In the strip images, there is an overlap of frames at the longitudinal end portions of the n-th strip image and the n+1-th and / or n-1-th strip images, the determination unit determines a degree of overlap between an end portion in the longitudinal direction of the n-th strip image and an end portion in the longitudinal direction of the n+1-th and / or n-1-th strip image. Microfilm management system.

2. the strip image generating unit generates strip images having frames to be recorded consecutively on the microfilm; 2. The microfilm management system of claim 1.

3. The microfilm management system includes a complementing unit; When the determining unit determines that the longitudinal ends are aligned, the determining unit further determines a distance between the frames at the longitudinal ends, When there is no gap between frames in the overlapping portion of the longitudinal end portion, the complementing unit complements the frame of the n-th strip image based on the frame of the n+1-th and / or n-1-th strip image.

3. The microfilm management system of claim 2.

4. The microfilm has frames of different sizes recorded in a longitudinal row, the strip image generating unit generates strip images at equal intervals in the longitudinal direction of the microfilm; 4. The microfilm management system according to claim 3.

5. The microfilm contains frames of different sizes, The length of the longitudinal end portion where the overlapping frames exist is 1.2 to 1.6 times the width of one frame recorded on the microfilm.

2. The microfilm management system of claim 1.

6. The microfilm has first and second frames of different sizes recorded on it, The first piece is smaller than the second piece, The length of the longitudinal end portion where the overlapping portions of the frames exist is 1.2 times or more and 1.6 times or less the width of one of the first frames.

6. The microfilm management system according to claim 5.

7. A microfilm management method executed by a microfilm management system for managing digitized microfilms, comprising: The microfilm management system includes a strip image generating unit and a determining unit, a step in which the strip image generating unit generates strip images having a plurality of frames in the longitudinal direction of the microfilm; In the strip images, there is an overlap of frames at the longitudinal end portions of the n-th strip image and the n+1-th and / or n-1-th strip images, the determination unit determines a degree of overlap between an end portion in the longitudinal direction of the n-th strip image and an end portion in the longitudinal direction of the n+1-th and / or n-1-th strip image, Microfilm management methods.

8. A microfilm management program for managing digitized microfilm, causing a computer to function as a strip image generating unit and a determining unit; the strip image generating unit generates strip images having a plurality of frames in the longitudinal direction of the microfilm; In the strip images, there is an overlap of frames at the longitudinal end portions of the n-th strip image and the n+1-th and / or n-1-th strip images, the determination unit determines a degree of overlap between an end portion in the longitudinal direction of the n-th strip image and an end portion in the longitudinal direction of the n+1-th and / or n-1-th strip image. Microfilm management program.

Images