JP5804430B2 - Book information processing apparatus, book information processing method, and program - Google Patents

Description

  The present invention relates to a book information processing apparatus that performs information processing related to a book.

  Conventionally, a user who has purchased a book has purchased an electronic book of the book through a site (for example, see Non-Patent Document 1).

"Electronic book store", [online], [searched September 2, 2013], Internet [URL: http://honto.jp/ebook.html]

  However, in the conventional environment and technology, when an electronic book corresponding to a paper book is acquired, it is necessary to input and search for the title, ID, and the like of the book, which is troublesome. In addition, only some electronic pages included in the paper book cannot be easily acquired.

  The book information processing apparatus according to the first aspect of the present invention includes an electronic book storage unit that can store one or more electronic books having one or more electronic pages that are electronic pages, and one or more paper books from a terminal device. An electronic page that identifies one or more electronic pages corresponding to the page image from a page image receiving unit that receives a page image obtained by photographing the page, a page image received by the page image receiving unit, and one or more electronic pages A book information processing apparatus comprising: a specifying unit; and an electronic page transmitting unit that transmits one or more electronic pages specified by the electronic page specifying unit to a terminal device.

  With this configuration, an electronic book corresponding to a paper book can be easily obtained. In addition, only some electronic pages included in a paper book can be easily acquired.

  Further, the book information processing apparatus according to the second aspect of the present invention is a processing instruction for receiving, from the terminal apparatus, a processing instruction including identification information for identifying an electronic page or an electronic book including the electronic page, from the terminal apparatus. The book information processing apparatus further includes a receiving unit and a processing unit that performs processing corresponding to an electronic page or electronic book corresponding to identification information included in the processing instruction.

  With this configuration, processing using an electronic book corresponding to a paper book can be performed. In addition, only some electronic pages included in a paper book can be easily acquired.

  In the book information processing apparatus according to the third aspect of the present invention, the processing instruction is an instruction to instruct purchase of an electronic page or an electronic book, and the processing unit is an electronic device corresponding to the processing instruction. A book information processing apparatus that performs processing for purchasing a page or an electronic book.

  With such a configuration, an electronic book corresponding to a paper book can be easily purchased. In addition, only some electronic pages included in a paper book can be easily purchased.

  The book information processing apparatus according to the fourth aspect of the invention acquires difference information indicating a difference between the page image and the electronic page specified by the electronic page specifying unit with respect to any one of the first to third aspects of the invention. An electronic page configuration unit that configures a modified electronic page that is a modified electronic page using the difference acquisition unit, the electronic page, and the difference information is further provided, and the electronic page transmission unit transmits the modified electronic page to the terminal device. It is a book information processing apparatus to transmit.

  With such a configuration, for example, the contents of a change made by a user to a paper book can be reflected in an electronic book or an electronic page.

  The book information processing apparatus according to the fifth aspect of the invention is a book information processing apparatus in which the difference information is an underline included in the page image.

  With this configuration, for example, an underline written by a user on a paper book can be reflected in an electronic book or an electronic page.

  Further, in the book information processing apparatus according to the sixth aspect of the present invention, in the first to fifth aspects of the invention, the electronic page specifying unit stores the page image received by the page image receiving unit and the electronic book storage. Two or more electronic pages of two or more electronic books corresponding to the page image are identified from two or more electronic pages of the unit, and the electronic page transmitting unit is configured to identify the two or more electronic items identified by the electronic page identifying unit. The book information processing apparatus transmits two or more electronic pages of a book or two or more electronic pages representing two or more electronic books to the terminal device.

  With this configuration, for example, a candidate electronic book or electronic page can be presented to the user.

  According to the book information processing apparatus of the present invention, all or part of an electronic book corresponding to all or part of a paper book can be easily acquired.

Conceptual diagram of information system 1 according to Embodiment 1 Block diagram of the information system 1 The flowchart explaining operation | movement of the book information processing apparatus 11 Flow chart explaining the adjustment process Flowchart explaining the electronic page specifying process A flowchart for explaining the electronic page configuration process Flow chart explaining the difference information acquisition process A flowchart for explaining the operation of the terminal device 12 The figure which shows the same electronic book management table The figure which shows the same electronic book management table Figure showing an example of a book on the same paper Figure showing an example of the purchase instruction input screen Figure showing output example of the same electronic page Figure showing an example of the purchase instruction input screen Figure showing an example of a book on the same paper Figure showing output example of the same electronic page Overview of the computer system Block diagram of the computer system

  Hereinafter, embodiments of a book information processing apparatus and the like will be described with reference to the drawings. In addition, since the component which attached | subjected the same code | symbol in embodiment performs the same operation | movement, description may be abbreviate | omitted again.

(Embodiment 1)
In this embodiment, when a page image obtained by photographing and acquiring a page of a book is transmitted from a terminal device to a book information processing device that is a server device, a page of an electronic book corresponding to the page image is determined, An information system for transmitting an electronic page that is a page of an electronic book to a terminal device will be described.

  In addition, in this embodiment, an information system that accepts an operation corresponding to an electronic page of an electronic book output to a terminal device and can perform processing according to the operation will be described. In addition, the process according to operation is a purchase process of an electronic book or an electronic page, for example.

  Further, in the present embodiment, an information system that acquires difference information between a page image and an electronic page and reflects information related to the difference information on the electronic page will be described.

  Note that the technology related to the information system in this embodiment is a technology for linking a physical book (a book that can be held in a hand) and an electronic book corresponding to the book (the same book), using a physical book. It can also be said that this is an e-book search technology. In addition, it can be said that the technology related to the information system in the present embodiment is a simple technology for purchasing an electronic book using a physical book.

  FIG. 1 is a conceptual diagram of an information system 1 in the present embodiment. The information system 1 includes a book information processing device 11 and one or more terminal devices 12. The terminal device 12 is, for example, a so-called smartphone, notebook computer, mobile phone, electronic book player, or the like, and the type of terminal is not limited.

  FIG. 2 is a block diagram of the information system 1 in the present embodiment. The book information processing apparatus 11 includes an electronic book storage unit 111, a page image reception unit 112, an electronic page specification unit 113, an electronic page transmission unit 114, a processing command reception unit 115, a processing unit 116, and an electronic page configuration unit 117.

  The terminal device 12 includes a terminal reception unit 121, a terminal processing unit 122, a terminal transmission unit 123, a terminal reception unit 124, and a terminal output unit 125.

  The electronic book storage unit 111 constituting the book information processing apparatus 11 can store one or more electronic books. An electronic book has one or more electronic pages which are electronic pages. The electronic page is usually a still image, but may be composed of a script such as HTML or XML. In addition, the electronic page may include audio and moving images. That is, the data structure of the electronic page does not matter. In addition, the electronic book here need not include all pages. The electronic book may be a one-page electronic book. Also, the electronic book storage unit 111 normally stores an electronic book identifier that identifies an electronic book and an electronic book in association with each other. Also, the electronic book storage unit 111 normally stores an electronic page identifier for identifying an electronic page and an electronic page in association with each other. Further, the electronic book may be stored in a pair with a sales price or a title. Furthermore, each electronic page may be stored in a pair with the sales price.

  The page image receiving unit 112 receives a page image obtained by photographing one or more pages of a paper book from the terminal device 12. A page image usually corresponds to one page of a paper book, but may correspond to two pages or three or more pages. When the page image includes two or more pages, an image corresponding to each page is referred to as a partial page image.

  The electronic page specifying unit 113 specifies one or more electronic pages corresponding to the page image received by the page image receiving unit 112. The electronic page specifying unit 113 normally specifies one or more electronic pages corresponding to the page image received by the page image receiving unit 112 using the page image received by the page image receiving unit 112 and one or more electronic pages. To do.

  For example, the electronic page specifying unit 113 may recognize a page image, acquire a page number in the page image, and specify an electronic page corresponding to the page number. Further, the electronic page specifying unit 113 may, for example, recognize a character of the page image, acquire the title and page number of the book in the page image, and specify the electronic page corresponding to the title and page number. . Further, for example, a code (for example, QR code (registered trademark)) for specifying the title of the book is printed on each page of the book, and the electronic page specifying unit 113 recognizes the QR code in the page image. The title of the book may be determined, and the page number may be determined from the page image. In addition, the electronic page specifying unit 113, for example, recognizes the character of the page image, acquires the page number in the page image, and calculates the similarity between the two or more electronic pages corresponding to the page number and the page image. Then, the electronic page having the highest degree of similarity (the most similar) may be determined as the electronic page corresponding to the page image. In addition, the electronic page specifying unit 113 calculates, for example, the similarity between each electronic page in the electronic book storage unit 111 and the page image, and the electronic page having the highest (most similar) similarity is associated with the page image. It may be determined that it is an electronic page.

  Note that the electronic page specifying unit 113 may specify two or more electronic pages of two or more electronic books corresponding to the page image received by the page image receiving unit 112. For example, when a captured image of one page is included in the page image, the electronic page specifying unit 113 selects two or more electronic pages of two or more electronic books whose similarity to the page image is greater than (or greater than or equal to) the threshold. You may specify. Further, for example, when the page image includes two pages of captured images, the electronic page specifying unit 113 has two or more electronic books whose similarity is greater than a threshold value (or greater than or equal to the threshold value) for each image for each page. Two or more electronic pages may be specified.

  Further, for example, the electronic page specifying unit 113 performs image processing on the page image received by the page image receiving unit 112, extracts one or more page outlines from the page image, and acquires an image for each page. Then, for example, the electronic page specifying unit 113 corrects the distortion of each acquired image for each page to obtain a rectangular image. For example, the electronic page specifying unit 113 sets the size of the rectangular image and the size of the electronic page to the same size. Next, the electronic page specifying unit 113 compares the size of the image having the same size with one or more electronic pages, and determines whether the page is a corresponding page or not by the above-described character recognition processing or image similarity determination. The determination may be made using the above process. As described above, there are various methods for specifying the electronic page corresponding to the page image by the electronic page specifying unit 113, and the method is not limited.

  The electronic page transmission unit 114 transmits one or more electronic pages specified by the electronic page specification unit 113 to the terminal device 12. The electronic page transmission unit 114 acquires one or more electronic pages specified by the electronic page specification unit 113 from the electronic book storage unit 111, and transmits the one or more electronic pages to the terminal device 12. When the electronic page specifying unit 113 specifies two or more electronic pages of two or more electronic books, the electronic page transmitting unit 114 may transmit the two or more electronic pages. Further, when the electronic page specifying unit 113 specifies two or more electronic pages of two or more electronic books, the electronic page transmitting unit 114 transmits one or more electronic pages representing each of the two or more electronic books. Also good. An electronic page representing an electronic book is, for example, an image of a cover of an electronic book, an image of a table of contents page, or the like.

  The electronic page transmission unit 114 may transmit a modified electronic page to be described later to the terminal device 12.

  Further, the electronic page transmission unit 114 may transmit the electronic book to the terminal device 12. That is, the electronic page transmission unit 114 may transmit an electronic book including one or more electronic pages specified by the electronic page specification unit 113 to the terminal device 12.

  The processing command receiving unit 115 receives a processing command including identification information for identifying an electronic page or an electronic book including the electronic page from the terminal device 12. Here, the processing instruction is, for example, an instruction to purchase an electronic page or electronic book, an instruction to purchase a product or service included in the electronic page or electronic book, and the like.

  The processing unit 116 performs processing corresponding to the electronic page or electronic book corresponding to the identification information included in the processing instruction. The processing unit 116 performs processing corresponding to a page image included in the processing instruction, or an electronic page or electronic book corresponding to the received page image. Such processing is, for example, processing for purchasing an electronic page or electronic book according to a processing instruction, processing for purchasing a product or service included in the electronic page or electronic book, and the like. The process for purchase is usually a settlement process. Further, the process for purchase may be a process for notifying the terminal device 12 that the payment has been completed. Since this process is a known technique, detailed description thereof is omitted. Note that the processing performed by the processing unit 116 is usually processing corresponding to an electronic page or electronic book corresponding to the received page image, and the processing content is not limited.

  The electronic page configuration unit 117 configures a modified electronic page that is information obtained by correcting the electronic page, using the electronic page and the difference information. That is, the electronic page configuration unit 117 acquires difference information that is a difference between the electronic page and the page image. Then, the electronic page configuration unit 117 adds the difference information to the electronic page and configures the modified electronic page.

  For example, the electronic page configuration unit 117 or the electronic page specification unit 113 extracts the outline of one or more pages from the page image by the above-described processing, and acquires an image for each page. Such an image is a partial page image. Then, for example, the electronic page configuration unit 117 or the electronic page specification unit 113 corrects the distortion of each image for each acquired partial page image to form a rectangular image. For example, the electronic page configuration unit 117 or the electronic page specification unit 113 sets the size of the rectangular image and the size of the electronic page (usually including the aspect ratio) to the same size. Next, the electronic page configuration unit 117 compares the partial page image having the same size with the electronic page, and acquires an image (partial image) of a different portion together with the position thereof. This partial image is difference information. The difference information is a part of information of the page image.

The electronic page configuration unit 117 normally adds difference information to the electronic page. The electronic page configuration unit 117 adds the difference information to the position of the electronic data indicated by the position information acquired as a pair with the difference information. The configuration may be erasure. Further, erasing is, for example, addition of a white rectangle. Furthermore, the position information is information on a relative position in the page, and is indicated by, for example, one or more coordinate values with the upper left point of the partial page image as the origin (0, 0). If the difference information is a rectangular shape, it is usually indicated by the upper left coordinate value (x ₁ , y ₁ ) and the lower right coordinate value (x ₂ , y ₂ ) of the difference information.

  The difference information is an underline included in the page image, a handwritten character string included in the page image, and the like. The difference information is usually a character, a figure, or the like written on a paper book by the user.

  The terminal reception unit 121 that configures the terminal device 12 receives processing instructions, information, and the like from the user. The processing instruction is, for example, a transmission instruction for an electronic page including a page image. The information is, for example, a page image. The processing command is a command for instructing purchase of an electronic page or an electronic book, for example. Such an instruction is referred to as a book purchase instruction. Further, the processing instruction may be, for example, an instruction to purchase a product or service included in an electronic page or electronic book. This processing instruction is referred to as a product purchase instruction. In addition, the processing instruction is, for example, an instruction to select one or more electronic books from two or more electronic books when two or more pages (including a cover) of two or more electronic books are output. Some selection instructions may be used. Note that the selection instruction may include an instruction to purchase one or more electronic books from two or more electronic books. Further, the book purchase instruction includes an electronic page identifier for identifying an electronic page to be purchased or an electronic book identifier for identifying an electronic book to be purchased. The processing instruction may be an instruction to purchase an electronic book that includes an electronic page identifier but does not include an electronic book identifier. Further, the processing command may include only a page image. Further, the processing command may be an instruction to capture an image (for example, a page image).

  Any means such as a numeric keypad, a keyboard, a mouse, or a menu screen may be used for inputting processing instructions and information. The terminal reception unit 121 can be realized by a device driver for input means such as a numeric keypad and a keyboard, control software for a menu screen, and the like.

  The terminal processing unit 122 performs processing in accordance with the processing command and information received by the terminal receiving unit 121. The content of the process does not matter. The terminal processing unit 122 may take an image and acquire an image (for example, a page image) in accordance with an instruction for shooting. The terminal processing unit 122 preferably includes a so-called camera.

  The terminal transmission unit 123 transmits the processing command and information received by the terminal reception unit 121 to the book information processing apparatus 11. Processing instructions, information, and the like are an instruction to transmit an electronic page including a page image, a page image, and the like. Further, the processing instruction, information, and the like are, for example, a book purchase instruction and a product purchase instruction. Further, the terminal transmission unit 123 receives the electronic book identifier of the electronic book corresponding to the selection instruction received by the terminal reception unit 121 or the electronic page identifier of the electronic page corresponding to the selection instruction received by the terminal reception unit 121. You may transmit to the apparatus 11.

  The terminal reception unit 124 receives one or more electronic pages or electronic books from the book information processing apparatus 11 in response to transmission of an electronic page transmission instruction or transmission of a page image in the terminal transmission unit 123. Further, the terminal reception unit 124 may receive a processing result or the like in the book information processing apparatus 11 in response to transmission of a processing command in the terminal transmission unit 123. The processing result indicates, for example, that the purchase of an electronic page or an electronic book is completed, or the purchase of a product or service is completed.

  The terminal output unit 125 outputs information received by the terminal receiving unit 124. The received information is, for example, an electronic page, an electronic book, a processing result in the book information processing apparatus 11, and the like. Here, output refers to display on a display, projection using a projector, printing with a printer, sound output, transmission to an external device, storage in a recording medium, and output to other processing devices or other programs. It is a concept that includes delivery of processing results.

  The electronic book storage unit 111 is preferably a non-volatile recording medium, but can also be realized by a volatile recording medium. The process in which an electronic book is memorize | stored in the electronic book storage part 111 is not ask | required. For example, an electronic book may be stored in the electronic book storage unit 111 via a recording medium, and an electronic book transmitted via a communication line or the like is stored in the electronic book storage unit 111. Alternatively, an electronic book input via an input device may be stored in the electronic book storage unit 111.

  The page image receiving unit 112, the processing command receiving unit 115, and the terminal receiving unit 124 are usually realized by wireless or wired communication means, but may be realized by means for receiving a broadcast.

  The electronic page specification unit 113, the processing unit 116, the electronic page configuration unit 117, and the terminal processing unit 122 can be usually realized by an MPU, a memory, or the like. The processing procedure of the electronic page specifying unit 113 is usually realized by software, and the software is recorded on a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  The electronic page transmission unit 114 and the terminal transmission unit 123 are usually realized by wireless or wired communication means, but may be realized by broadcasting means.

  The terminal output unit 125 may be considered as including or not including an output device such as a display or a speaker. The terminal output unit 125 may be implemented by output device driver software, or output device driver software and an output device.

  Next, the operation of the information system 1 will be described. First, operation | movement of the book information processing apparatus 11 is demonstrated using the flowchart of FIG.

  (Step S301) The page image receiving unit 112 or the processing command receiving unit 115 determines whether a page image or the like has been received from the terminal device 12. If a page image or the like is received, the process proceeds to step S302. If no page image or the like is received, the process returns to step S301. Here, the page image or the like is, for example, a page image only, an electronic page purchase instruction including the page image, or an electronic book purchase instruction including the page image.

  (Step S302) The processing unit 116 determines whether or not the information received in step S301 is an instruction to purchase an electronic page. If it is an instruction to purchase an electronic page, the process proceeds to step S303, and if it is not an instruction to purchase an electronic page, the process proceeds to step S304.

  (Step S303) The processing unit 116 performs processing for purchasing an electronic page. Note that the processing unit 116 may perform processing for purchasing an electronic page after the electronic page corresponding to the page image or the partial image has been identified.

  (Step S304) The processing unit 116 determines whether or not the information received in step S301 is an instruction to purchase an electronic book. If it is an instruction to purchase an electronic book, the process proceeds to step S305, and if it is not an instruction to purchase an electronic book, the process proceeds to step S305.

  (Step S305) The processing unit 116 performs processing for purchasing an electronic book. Note that the processing unit 116 may perform processing for purchasing an electronic book after the electronic book corresponding to the page image or the partial image can be identified. Note that if an electronic page can be specified, an electronic book including the electronic page can usually be specified.

  (Step S306) The electronic page identification unit 113 performs adjustment processing. The adjustment process acquires one or more page images (referred to as “partial page images” as appropriate) from the page image received in step S301, corrects the attribute value of the partial page image, and compares it with the electronic page. This is a process that facilitates the process. The adjustment process will be described with reference to the flowchart of FIG.

  (Step S307) The electronic page specifying unit 113 performs an electronic page specifying process using the adjusted page image or partial page image. The electronic page specifying process is a process of specifying an electronic page corresponding to a page image or a partial page image. The electronic page specifying process will be described with reference to the flowchart of FIG.

  (Step S308) The electronic page configuration unit 117 performs an electronic page configuration process. Such electronic page configuration processing will be described with reference to the flowchart of FIG.

  (Step S309) The electronic page transmission unit 114 determines whether or not the received instruction is an instruction to purchase an electronic book. If it is an instruction to purchase an electronic book, go to step S310, and if it is not an instruction to purchase an electronic book, go to step S312.

  (Step S310) The electronic page configuration unit 117 configures an electronic book to be transmitted using the configured electronic page or the electronic page corresponding to the page image. Note that the electronic page configuration unit 117 may only acquire an electronic book including one or more electronic pages corresponding to the page image from the electronic book storage unit 111.

  (Step S311) The electronic page transmission unit 114 transmits the electronic book configured in step S310 to the terminal device 12. The process returns to step S301.

  (Step S312) The electronic page transmission unit 114 transmits an electronic page corresponding to the configured electronic page or page image to the terminal device 12. The process returns to step S301.

  In the flowchart of FIG. 3, the electronic page configuration process in step S308 may be omitted.

  In the flowchart of FIG. 3, steps S302 to S305 may be performed after the electronic page specifying process is completed.

  Further, in the flowchart of FIG. 3, the process is ended by powering off or interruption for aborting the process.

  Next, the adjustment process of step S306 will be described using the flowchart of FIG.

  (Step S401) The electronic page specifying unit 113 extracts a page outline from the page image received by the page image receiving unit 112. Since the technique for extracting the contour from the image is a known technique, detailed description thereof is omitted. The electronic page specifying unit 113 extracts the outline of a page that is generally rectangular. The electronic page specifying unit 113 normally extracts the outline of a page that is a rectangle of one page, but may extract the outline of a page that is a rectangle of two pages. Further, the electronic page specifying unit 113 may extract the outline of a page that is a rectangle of three or more pages.

  (Step S402) The electronic page specifying unit 113 cuts out images one page at a time from the page image using the contour extracted in step S401. Then, the electronic page specifying unit 113 obtains one or more partial page images. The partial page image corresponds to one page of an actual book.

  (Step S403) The electronic page specifying unit 113 substitutes 1 for a counter i.

  (Step S404) The electronic page specifying unit 113 determines whether or not the i-th partial page image (image of the i-th page) exists. If the i-th partial page image exists, the process proceeds to step S405, and if it does not exist, the process returns to the upper process.

  (Step S405) The electronic page specifying unit 113 corrects the distortion of the i-th partial page image to make a rectangle (usually a rectangle). Since the image distortion correction technique is a known technique, detailed description thereof is omitted.

  (Step S406) The electronic page specifying unit 113 corrects the size of the partial page image whose distortion has been corrected. The size correction is to make the size of the partial page image a size that matches the size of the electronic page. Here, the size of the electronic page is uniform, but it may be different depending on the book or page. When the size of the electronic page varies depending on the electronic book or electronic page, the size of the partial page image is corrected for each electronic book or electronic page.

  (Step S407) The electronic page specifying unit 113 performs color correction on the partial page image on which size correction has been performed. Color correction is, for example, a process of changing the pixel values of all the pixels of the partial page image by the same value so that the color of the background portion of the partial page image becomes the same as the color of the background portion of the electronic page. . The color correction may be performed by simply changing the pixel value of the background portion pixel of the partial page image so that the color of the background portion of the partial page image is the same as the color of the background portion of the electronic page.

  (Step S408) The electronic page identification unit 113 increments the counter i by 1.

  Next, the electronic page specifying process in step S307 will be described with reference to the flowchart of FIG.

  (Step S501) The electronic page specifying unit 113 substitutes 1 for a counter i.

  (Step S502) The electronic page specifying unit 113 determines whether an image (partial page image) of the i-th page exists. If the i-th partial page image exists, the process proceeds to step S503, and if it does not exist, the process returns to the upper process.

  (Step S503) The electronic page identification unit 113 substitutes 1 for a counter j.

  (Step S504) The electronic page specifying unit 113 determines whether or not the j-th electronic page exists in the electronic book storage unit 111. If the jth electronic page exists, the process goes to step S505, and if not, the process goes to step S507.

  (Step S505) The electronic page specifying unit 113 calculates the similarity between the i-th partial page image and the j-th electronic page. The technique for calculating the similarity between two images is a known technique, and any method may be used. For example, the electronic page specifying unit 113 may calculate the degree of similarity using a decreasing function (for example, a function for calculating the reciprocal thereof) using the sum of absolute values of differences between all pixel values of two images as a parameter. good.

  (Step S506) The electronic page specifying unit 113 increments the counter j by 1. The process returns to step S504.

  (Step S507) The electronic page specifying unit 113 acquires the identifier of the electronic page having the maximum similarity from the electronic book storage unit 111.

  (Step S508) The electronic page identification unit 113 increments the counter i by 1. The process returns to step S502.

  Next, the electronic page configuration processing in step S308 will be described using the flowchart in FIG.

  (Step S601) The electronic page composition unit 117 substitutes 1 for a counter i.

  (Step S602) The electronic page configuration unit 117 determines whether an image (partial page image) of the i-th page exists. If the i-th partial page image exists, the process proceeds to step S603, and if it does not exist, the process returns to the upper process.

  (Step S603) The electronic page configuration unit 117 acquires difference information indicating a difference between the i-th partial page image and the corresponding electronic page. The difference information acquisition process will be described with reference to the flowchart of FIG.

  (Step S604) The electronic page configuration unit 117 substitutes 1 for a counter j.

  (Step S605) The electronic page configuration unit 117 determines whether or not the j-th difference information exists. If the j-th difference information exists, the process goes to step S606, and if the j-th difference information does not exist, the process goes to step S609.

  (Step S606) The electronic page configuration unit 117 acquires position information corresponding to the j-th difference information.

  (Step S607) The electronic page configuration unit 117 arranges the j-th difference information at the position indicated by the electronic page position information.

  (Step S608) The electronic page configuration unit 117 increments the counter j by 1. The process returns to step S605.

  (Step S609) The electronic page configuration unit 117 increments the counter i by 1. The process returns to step S602.

  Next, the difference information acquisition process in step S603 will be described with reference to the flowchart of FIG.

  (Step S701) The electronic page configuration unit 117 assigns 1 to a counter i. Note that i indicates the row number next to the pixel in the partial page image.

  (Step S702) The electronic page configuration unit 117 assigns 1 to the counter j. J indicates the vertical column number of the pixel in the partial page image.

  (Step S703) The electronic page configuration unit 117 determines whether or not the pixel (i, j) exists in the partial page image. Note that (i, j) are coordinates in a rectangular image, and specify one pixel.

  (Step S704) The electronic page configuration unit 117 compares the pixel value of the pixel (i, j) in the partial page image with the pixel value of the pixel (i, j) in the electronic page.

  (Step S705) The electronic page configuration unit 117 determines whether or not the comparison result in step S704 is greater than a threshold value. If it is larger than the threshold value, go to step S706, and if it is less than the threshold value, go to step S707. Here, “greater than threshold” may be replaced with “above threshold” and “below threshold” may be replaced with “smaller than threshold”.

  (Step S706) The electronic page configuration unit 117 registers (i, j). Registration means, for example, temporarily storing in a buffer (not shown).

  (Step S707) The electronic page configuration unit 117 increments the counter j by 1. The process returns to step S703.

  (Step S708) The electronic page composition unit 117 increments the counter i by one.

  (Step S709) The electronic page configuration unit 117 determines whether or not the i-th row pixel exists in the partial page image. If there is an i-th row pixel, the process returns to step S702; otherwise, the process goes to step S710.

  (Step S710) The electronic page composition unit 117 acquires one or more rectangles composed of points having consecutive positions from the set of points ((i, j)) registered in step S706. The electronic page configuration unit 117 does not have to acquire a rectangle of a region (area) whose region (area) is smaller than a threshold value.

  (Step S711) The electronic page configuration unit 117 assigns 1 to the counter k.

  (Step S712) The electronic page configuration unit 117 determines whether or not the kth rectangle exists in the rectangle (set) acquired in step S710. If the kth rectangle exists, the process goes to step S713, and if the kth rectangle does not exist, the process returns to the upper process.

(Step S713) The electronic page configuration unit 117 acquires the upper left coordinates (x ₁ , y ₁ ) and lower right coordinates (x ₂ , y ₂ ) of the kth rectangle. The upper left coordinates (x1, y1) and the lower right coordinates (x2, y2) are the position information described above.

  (Step S714) The electronic page configuration unit 117 acquires difference information that is a rectangular portion of a partial page image (image data or part of image data). The difference information is an image of an area indicated by the position information in the partial page image.

  (Step S715) The electronic page configuration unit 117 registers the difference information acquired in step S714 and the position information acquired in step S713 in association with each other.

  (Step S716) The electronic page configuration unit 117 increments the counter k by 1. The process returns to step S712.

  Next, operation | movement of the terminal device 12 is demonstrated using the flowchart of FIG.

  (Step S <b> 801) The terminal reception unit 121 determines whether an instruction to capture a book page has been received. If an imaging instruction is accepted, the process goes to step S802, and if no imaging instruction is accepted, the process returns to step S801.

  (Step S <b> 802) The terminal processing unit 122 captures a page of a book according to a capturing instruction and acquires a page image. Then, the terminal processing unit 122 temporarily stores the page image in a buffer (not shown).

  (Step S803) The terminal receiving unit 121 determines whether or not an instruction to purchase an electronic page corresponding to the page image or an electronic book corresponding to the page image has been received. If a purchase instruction is accepted, the process goes to step S804, and if no purchase instruction is accepted, the process goes to step S805. In step S803, it is preferable to wait until the terminal reception unit 121 receives any instruction.

  (Step S804) The terminal transmission unit 123 configures an instruction to transmit using the page image temporarily stored in the buffer and the purchase instruction received in Step S803.

  (Step S <b> 805) The terminal transmission unit 123 configures an instruction to transmit using the page image temporarily stored in the buffer.

  (Step S806) The terminal transmission unit 123 transmits the configured instruction to the book information processing apparatus 11.

  (Step S807) In response to the transmission of the instruction in step S806, the terminal reception unit 124 determines whether one or more electronic pages or electronic books have been received from the book information processing apparatus 11. If an electronic page or the like is received, the process proceeds to step S808, and if not received, the process returns to step S807.

  (Step S808) The terminal output unit 125 outputs one or more electronic pages or electronic books received in Step S807. The process returns to step S801.

  In the flowchart of FIG. 8, the reception of the page image shooting instruction in step S802 may be reception of an electronic page or electronic book purchase instruction.

  Further, in the flowchart of FIG. 8, the process is terminated by power-off or a process termination interrupt.

  Hereinafter, a specific operation of the information system 1 in the present embodiment will be described. A conceptual diagram of the information system 1 is shown in FIG.

  Now, it is assumed that the electronic book storage unit 111 holds the electronic book management tables shown in FIGS. 9 and 10. The electronic book management table stores two or more records having “book ID”, “page ID”, “electronic page”, “page price”, and “book price”. “Book ID” is identification information for identifying a book. The “book ID” may be a book title, ISBN (International Standard Book Number), or the like. “Page ID” is identification information for identifying a page. Here, “page ID” is a page number. The “electronic page” is entity data of a page constituting the electronic book. The “electronic page” may be an image or information described in a script such as HTML. That is, the data structure of the “electronic page” does not matter. “Page price” is the selling price of each electronic page, and “Book price” is the selling price of each electronic book.

  In this situation, the following three specific examples will be described.

(Specific example 1)
In the first specific example, a page image obtained by photographing one page of a paper book is transmitted to the book information processing apparatus 11, and an electronic page whose content matches the page image is specified. This is a case where the user purchases the page. Specific example 1 is a case where electronic page configuration processing is performed in which an underline drawn on a paper page is reflected on the electronic page.

  Now, it is assumed that the user of the terminal device 12 now has the paper book shown in FIG. 11 and the user has photographed the 12th page of the paper book shown in FIG. . That is, the user inputs a shooting instruction to the terminal device 12 (presses a button on the camera), and the terminal reception unit 121 receives a shooting instruction for a book page. And the terminal process part 122 image | photographs the page of a book according to an imaging | photography instruction | indication, and acquires a page image. Here, it is assumed that the terminal processing unit 122 has acquired the page image of page 12 in FIG. Next, it is assumed that the user inputs an instruction to purchase an electronic page corresponding to the captured page image to the terminal device 12. An example of a purchase instruction input screen is shown in FIG. For example, it is assumed that the input screen of FIG. 12 is displayed when the page image is captured.

  Next, in FIG. 12, it is assumed that the user has checked the check box for purchasing “electronic page” and has pressed the “purchase” button.

  Then, the terminal reception unit 121 receives a purchase instruction for an electronic page corresponding to the page image.

  Next, the terminal transmission unit 123 configures an instruction to transmit using the page image temporarily stored in the buffer and the accepted purchase instruction. The instruction to transmit includes a page image, information indicating purchase of an electronic page, a user identifier, and the like. The user identifier is stored in advance in the terminal device 12, and may be, for example, an identifier (telephone number, IP address, MAC address, etc.) of the terminal device 12, or a credit card number.

  Next, the terminal transmission unit 123 transmits the configured instruction to the book information processing apparatus 11.

  Next, the page image receiving unit 112 of the book information processing apparatus 11 receives from the terminal device 12 a transmission instruction including a page image (may be referred to as an electronic page purchase instruction). It may be considered that the instruction to purchase an electronic page has been received by the processing command receiving unit 115.

  Next, the electronic page specifying unit 113 performs adjustment processing. That is, first, the electronic page specifying unit 113 extracts the page outline from the page image received by the page image receiving unit 112. Next, the electronic page specifying unit 113 cuts out one page image from the page image using the extracted contour. Next, the electronic page specifying unit 113 corrects the distortion of the cut page image to make it a rectangle. Next, the electronic page specifying unit 113 corrects the size of the distortion-corrected page image. Next, the electronic page specifying unit 113 performs color correction (for example, setting the background to white) on the page image that has been subjected to size correction.

  Next, the electronic page specifying unit 113 performs an electronic page specifying process using the adjusted page image. That is, the electronic page specifying unit 113 calculates the degree of similarity between the adjusted page image and each electronic page in FIGS. Then, the electronic page identification unit 113 acquires the electronic page identifier “A, 12” of the maximum similarity from the electronic book storage unit 111. “A, 12” indicates a book ID “A” and a page ID “12”. Note that the electronic page specifying unit 113 may recognize the character of the page image and acquire the page number “12”. It is preferable that the electronic page specifying unit 113 recognizes characters in a predetermined area (for example, an area where page numbers such as the lower center of the page image and the lower right of the page image are printed) and obtains a numerical value. is there. Further, it is preferable to acquire the page number “12” from the result of character recognition using a clue character (for example, “-” of the character string “-12-” including the page number).

  Next, the electronic page configuration unit 117 performs an electronic page configuration process. In other words, the electronic page configuration unit 117 acquires difference information (in this case, underline) indicating the difference between the page image and the corresponding electronic page, and its position information using the algorithm shown in FIG. And the electronic page structure part 117 acquires the electronic page which added the said difference information to the position of the positional information used as a pair with the said difference information.

  Next, the electronic page transmission unit 114 transmits the configured electronic page to the terminal device 12.

  Next, the processing unit 116 determines that the received information is an instruction to purchase an electronic page. Then, the processing unit 116 performs processing for purchasing the electronic page. That is, the processing unit 116 acquires the price “50 yen” of the page “A, 12” from the electronic book management tables of FIGS. 9 and 10. Then, for example, the processing unit 116 may perform an accounting process of 50 yen for the credit card number corresponding to the identifier of the terminal device 12, or 50 yen for the received credit card number. The billing process may be performed. Since the accounting process is a known technique, a detailed description is omitted.

  Next, the terminal receiving unit 124 receives an electronic page from the book information processing apparatus 11 in response to the transmission of the instruction.

  Next, the terminal output unit 125 outputs the received electronic page. An output example of the electronic page is shown in FIG. This electronic page also includes the underline described on the paper page.

  As described above, according to the first specific example, the user can purchase an electronic page corresponding to the page by photographing a page in a paper book and transmitting a purchase instruction. In addition, an electronic page reflecting what the user has described can be purchased on a page in a paper book.

(Specific example 2)
In specific example 2, one page image obtained by photographing two pages of a paper book is transmitted to the book information processing apparatus 11, and an electronic book including an electronic page corresponding to the page image is specified. This is a case where the user purchases the electronic book.

  The user of the terminal device 12 now has the paper book shown in FIG. 11, and the user uses the terminal device 12 to photograph the 12th and 13th pages of the paper book shown in FIG. 11. Suppose that That is, the user inputs a shooting instruction to the terminal device 12 (presses a button on the camera), and the terminal reception unit 121 receives a shooting instruction for a book page. And the terminal process part 122 image | photographs the page of a book according to an imaging | photography instruction | indication, and acquires a page image. Here, it is assumed that the terminal processing unit 122 has acquired page images including the 12th and 13th pages in FIG. Next, it is assumed that the user inputs an instruction to purchase an electronic page corresponding to the captured page image to the terminal device 12. An example of a purchase instruction input screen is shown in FIG. For example, it is assumed that the input screen in FIG. 14 is displayed when the page image is captured.

  Next, it is assumed that the user checks the check box for purchasing “electronic book” in FIG. 14 and presses the “OK” button.

  Then, the terminal reception part 121 receives the purchase instruction of the electronic book corresponding to a page image.

  Next, the terminal transmission unit 123 configures an instruction to transmit using the page image temporarily stored in the buffer and the accepted purchase instruction. The instruction to transmit includes a page image, information indicating purchase of the electronic book, a user identifier, and the like.

  Next, the terminal transmission unit 123 transmits the configured instruction to the book information processing apparatus 11.

  Next, the page image receiving unit 112 of the book information processing apparatus 11 receives from the terminal device 12 a transmission instruction including a page image (herein, it may be referred to as an electronic book purchase instruction). Note that it may be considered that the instruction to purchase an electronic book has been received by the processing command receiving unit 115.

  Next, the electronic page specifying unit 113 performs the adjustment process described above. That is, first, the electronic page specifying unit 113 extracts the outlines of two pages from the page image received by the page image receiving unit 112. Next, the electronic page specifying unit 113 cuts out two pages of images (two partial page images) from the page image using the extracted contour. Next, the electronic page specifying unit 113 corrects the distortion of each cut-out partial page image to make it a rectangle. Next, the electronic page specifying unit 113 corrects the size of the partial page image whose distortion has been corrected. Next, the electronic page specifying unit 113 performs color correction (for example, white background) on the partial page image that has been subjected to size correction.

  Next, the electronic page specifying unit 113 performs an electronic page specifying process using the adjusted partial page image. That is, the electronic page identification unit 113 calculates the similarity between each adjusted partial page image and each electronic page in FIGS. Then, the electronic page specifying unit 113 acquires the identifiers “A, 12” and “A, 13” of the electronic page having the maximum similarity from the electronic book storage unit 111.

  Next, the processing unit 116 determines that the received information is an instruction to purchase an electronic book.

  Next, the electronic page configuration unit 117 configures an electronic book to be transmitted using an electronic page corresponding to the page image (all electronic pages corresponding to “book ID = A” in FIG. 9).

  Next, the electronic page transmission unit 114 transmits the configured electronic book to the terminal device 12.

  Then, the processing unit 116 performs processing for purchasing the electronic book. That is, the processing unit 116 reads the price “1500 yen” of the book “A” from the electronic book management table of FIG. Then, for example, the processing unit 116 may perform an accounting process of 1500 yen for the credit card number corresponding to the identifier of the terminal device 12, or 1500 yen for the received credit card number. The billing process may be performed.

  Next, the terminal receiving unit 124 receives the electronic book from the book information processing apparatus 11 in response to the transmission of the instruction. Next, the terminal output unit 125 outputs the received electronic book.

  As described above, according to the second specific example, the user can purchase an electronic book including an electronic page corresponding to the page by photographing a page in a paper book and transmitting a book purchase instruction.

  In the second specific example, when the instruction is an instruction to purchase an electronic page, two electronic pages identified by the identifiers “A, 12” and “A, 13” of the electronic page can be purchased.

(Specific example 3)
In specific example 3, a page image obtained by photographing one page of a paper book is transmitted to the book information processing apparatus 11 and is an electronic page corresponding to the page image. When a page (for example, an electronic page where a portion corresponding to a still image included in the page image is a moving image or audio data) is specified and the electronic page is transmitted to the user terminal device 12 It is.

  Now, it is assumed that the user of the terminal device 12 now has the paper book shown in FIG. 15 and the user has taken the second page of the paper book shown in FIG. . That is, the user inputs a shooting instruction to the terminal device 12 (presses a button on the camera), and the terminal reception unit 121 receives a shooting instruction for a book page. And the terminal process part 122 image | photographs the page of a book according to an imaging | photography instruction | indication, and acquires a page image. Here, it is assumed that the terminal processing unit 122 has acquired the page image of page 2 in FIG.

  Next, it is assumed that the user inputs an instruction to transmit the photographed page image to the book information processing apparatus 11 to the terminal device 12. Then, the terminal reception unit 121 receives a page image transmission instruction. The terminal transmission unit 123 configures an instruction to transmit using the page image temporarily stored in the buffer and the received transmission instruction. Next, the terminal transmission unit 123 transmits the configured instruction to the book information processing apparatus 11.

  Next, the page image receiving unit 112 of the book information processing apparatus 11 receives a page image or the like from the terminal device 12.

  Next, the electronic page specifying unit 113 performs the above-described adjustment process on the received page image.

  Next, the electronic page specifying unit 113 performs the above-described electronic page specifying process using the adjusted page image. Then, the electronic page specifying unit 113 determines that the page image corresponds to the electronic page “B, 2”.

  Next, the electronic page transmission unit 114 reads the electronic page corresponding to “B, 2” from the electronic book management table of FIG. Then, the electronic page transmission unit 114 transmits an electronic page corresponding to “B, 2” to the terminal device 12.

  Next, the terminal receiving unit 124 of the terminal device 12 receives an electronic page corresponding to “B, 2” from the book information processing apparatus 11.

  Then, the terminal output unit 125 outputs the received electronic page. Here, an output example is shown in FIG. In FIG. 16, when the user presses the playback button 1401 for a moving image, the moving image 1402 is played. If the user presses the design of the microphone 1402, a sound corresponding to the design of the microphone is output.

  As described above, according to the third specific example, the user captures and transmits a page in a paper book, and is an electronic page corresponding to the page. You can get an electronic page.

  As described above, according to this embodiment, an electronic book or an electronic page corresponding to a paper book can be easily acquired.

  Further, according to the present embodiment, it is possible to perform processing using an electronic book corresponding to a paper book. The process is, for example, purchase of an electronic book or an electronic page.

  Moreover, according to this Embodiment, the content (for example, underline) which the user added to the paper book can be reflected in an electronic book.

  In the present embodiment, it goes without saying that the type of book is not limited. That is, the book may be anything such as a technical book, a magazine, a textbook, a comic book, a picture book, an encyclopedia, a dictionary, and a catalog. Moreover, attributes, such as a magnitude | size of a book, do not ask | require. Furthermore, “paper” in the above “paper book” may be any material that exhibits the function of the book, and is widely considered to include materials that are equivalent to paper.

  Further, the processing in the present embodiment may be realized by software. Then, this software may be distributed by software download or the like. Further, this software may be recorded and distributed on a recording medium such as a CD-ROM. This also applies to other embodiments in this specification. Note that the software that implements the information processing apparatus according to the present embodiment is the following program. In other words, this program includes an electronic book storage unit that can store one or more electronic books having one or more electronic pages, which are electronic pages, and the computer is connected to a paper book from a terminal device. One or more electronic devices corresponding to the page image from a page image receiving unit that receives a page image obtained by photographing one or more pages, a page image received by the page image receiving unit, and the one or more electronic pages An electronic page specifying unit that specifies a page, and a program for functioning as an electronic page transmitting unit that transmits one or more electronic pages specified by the electronic page specifying unit to the terminal device.

  In the above program, a processing command receiving unit that receives a processing command including identification information for identifying an electronic page or an electronic book including the electronic page from the terminal device, and an electronic corresponding to the identification information included in the processing command It is preferable to cause the computer to function as a processing unit that performs processing corresponding to a page or an electronic book.

  In the above program, the processing instruction is an instruction to instruct the purchase of the electronic page or the electronic book, and the processing unit is for purchasing the electronic page or the electronic book according to the processing instruction. It is preferable to make a computer function as processing.

  Moreover, in the said program, it corrected using the difference acquisition part which acquires the difference information which shows the difference with the said page image and the electronic page which the said electronic page specification part specified, and the said electronic page and the said difference information It is preferable that the electronic page transmission unit further includes an electronic page configuration unit that configures a modified electronic page that is an electronic page, and the electronic page transmission unit causes the computer to function as transmitting the modified electronic page to the terminal device. .

  FIG. 17 shows the external appearance of a computer that executes the program described in this specification to realize the book information processing apparatus 11 and the terminal apparatus 12 according to the various embodiments described above. The above-described embodiments can be realized by computer hardware and a computer program executed thereon. FIG. 17 is an overview diagram of the computer system 300, and FIG. 18 is a block diagram of the system 300.

  In FIG. 17, a computer system 300 includes a computer 301 including a CD-ROM drive, a keyboard 302, a mouse 303, and a monitor 304.

  In FIG. 18, in addition to the CD-ROM drive 3012, the computer 301 includes an MPU 3013, a bus 3014 connected to the MPU 3013 and the CD-ROM drive 3012, a ROM 3015 for storing a program such as a bootup program, and an MPU 3013. And a RAM 3016 for temporarily storing instructions of the application program and providing a temporary storage space, and a hard disk 3017 for storing the application program, the system program, and data. Although not shown here, the computer 301 may further include a network card that provides connection to a LAN.

  A program that causes the computer system 300 to execute the functions of the book information processing apparatus and the like of the above-described embodiment may be stored in the CD-ROM 3101, inserted into the CD-ROM drive 3012, and further transferred to the hard disk 3017. . Alternatively, the program may be transmitted to the computer 301 via a network (not shown) and stored in the hard disk 3017. The program is loaded into the RAM 3016 at the time of execution. The program may be loaded directly from the CD-ROM 3101 or the network.

  The program does not necessarily include an operating system (OS), a third party program, or the like that causes the computer 301 to execute the functions of the book information processing apparatus and the like of the above-described embodiment. The program only needs to include an instruction portion that calls an appropriate function (module) in a controlled manner and obtains a desired result. How the computer system 300 operates is well known and will not be described in detail.

  In the above program, in the step of transmitting information, the step of receiving information, etc., processing performed by hardware, for example, processing performed by a modem or an interface card in the transmission step (only performed by hardware) Processing) is not included.

  Further, the computer that executes the program may be singular or plural. That is, centralized processing may be performed, or distributed processing may be performed.

  Further, in each of the above embodiments, it goes without saying that two or more communication units existing in one apparatus may be physically realized by one medium.

  In each of the above embodiments, each process (each function) may be realized by centralized processing by a single device (system), or by distributed processing by a plurality of devices. May be.

  The present invention is not limited to the above-described embodiments, and various modifications are possible, and it goes without saying that these are also included in the scope of the present invention.

  As described above, the book information processing apparatus according to the present invention has an effect that an electronic page or an electronic book corresponding to a paper book can be easily obtained, and is useful as a book information processing apparatus or the like.

DESCRIPTION OF SYMBOLS 1 Information system 11 Book information processing apparatus 12 Terminal device 111 Electronic book storage part 112 Page image receiving part 113 Electronic page specific | specification part 114 Electronic page transmission part 115 Processing command receiving part 116 Processing part 117 Electronic page structure part 121 Terminal reception part 122 Terminal Processing unit 123 Terminal transmission unit 124 Terminal reception unit 125 Terminal output unit

Claims (7)

An electronic book storage unit capable of storing one or more electronic books having one or more electronic pages which are electronic pages;
A page image receiving unit that receives a page image obtained by photographing one or more pages of a paper book from a terminal device;
An electronic page specifying unit for specifying one or more electronic pages corresponding to the page image from the page image received by the page image receiving unit and the one or more electronic pages;
An electronic page transmitting unit that transmits one or more electronic pages specified by the electronic page specifying unit to the terminal device ;
A difference acquisition unit for acquiring difference information indicating a difference between the page image and the electronic page specified by the electronic page specifying unit;
Using the electronic page and the difference information, further comprising an electronic page configuration unit that constitutes a modified electronic page that is a modified electronic page;
The electronic page transmitter is
A book information processing apparatus that transmits the modified electronic page to the terminal device. A processing command receiving unit that receives a processing command including identification information for identifying an electronic page or an electronic book including the electronic page from the terminal device;
The book information processing apparatus according to claim 1, further comprising: a processing unit that performs processing corresponding to an electronic page or an electronic book corresponding to identification information included in the processing instruction. The processing instruction is:
An instruction to instruct purchase of the electronic page or the electronic book;
The processor is
The book information processing apparatus according to claim 2, wherein processing for purchasing the electronic page or the electronic book according to the processing instruction is performed. The difference information is
The book information processing apparatus according to claim 1 , wherein the book information processing apparatus is an underline included in the page image. The electronic page specifying unit
Identifying two or more electronic pages of two or more electronic books corresponding to the page image from the page image received by the page image receiving unit and two or more electronic pages of the electronic book storage unit;
The electronic page transmitter is
Either the electronic page 2 or more electronic pages of a particular section is identified more electronic book or more of claims 2 or more electronic pages representative of electronic book claims 1 to be transmitted to the terminal apparatus 4, The book information processing apparatus described. The recording medium is
An electronic book storage unit capable of storing one or more electronic books having one or more electronic pages that are electronic pages;
A book information processing method realized by a page image reception unit, an electronic page identification unit , an electronic page transmission unit , a difference acquisition unit, and an electronic page configuration unit ,
A page image receiving step for receiving, from the terminal device, a page image obtained by photographing one or more pages of a paper book;
An electronic page specifying step in which the electronic page specifying unit specifies one or more electronic pages corresponding to the page image from the page image received in the page image receiving step and the one or more electronic pages;
The electronic page transmitting unit includes an electronic page transmitting step of transmitting one or more electronic pages specified in the electronic page specifying step to the terminal device ;
The difference acquisition unit acquires difference information indicating a difference between the page image and the electronic page specified in the electronic page specifying step; and
An electronic page configuration step in which the electronic page configuration unit configures a modified electronic page that is a modified electronic page using the electronic page and the difference information;
The electronic page transmitting unit further includes a step of transmitting the modified electronic page to the terminal device . The recording medium is
An electronic book storage unit capable of storing one or more electronic books having one or more electronic pages that are electronic pages;
Computer
A page image receiving unit that receives a page image obtained by photographing one or more pages of a paper book from a terminal device;
An electronic page specifying unit for specifying one or more electronic pages corresponding to the page image from the page image received by the page image receiving unit and the one or more electronic pages;
An electronic page transmitting unit that transmits one or more electronic pages specified by the electronic page specifying unit to the terminal device ;
A difference acquisition unit for acquiring difference information indicating a difference between the page image and the electronic page specified by the electronic page specifying unit;
Using the electronic page and the difference information, a program for functioning as an electronic page configuration unit that configures a modified electronic page that is a modified electronic page,
The electronic page transmission unit
A program for causing a computer to function as transmitting the modified electronic page to the terminal device .

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