JP2014154078A - Portable type display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently perform medical activities with printed matters regarding medical information.SOLUTION: An image data storage section 105 stores pieces of captured image data each of whose subject is a printed matter regarding medical information. A control section 101 selects a piece of captured image data specified by a user from among a list of the pieces of captured image data stored in the storage section 105. A link information identification section 107 identifies link information for identifying medical information from the piece of captured image data by image processing. A medical information acquisition section 109 acquires medical information corresponding to a printed matter included in the piece of captured image data from a medical image storage device 300 on the basis of the link information.

Description

  Embodiments described herein relate generally to a portable display device.

  There is a technique for capturing a printed matter (hard copy) such as a scanner as image data in a computer apparatus. In addition, a technique for easily converting handwritten memos and the like into data using a mobile terminal such as a smart phone has become widespread. For example, there is a method of photographing a handwritten memo or the like with a camera built in the portable terminal. Similarly, with respect to medical information, it is considered that a case in which a printed matter of medical information is converted into data by a camera function and used by a portable terminal owned by a doctor using these technologies will occur.

JP 2008-90715 A

  An object of the present invention is to provide a portable display device that can improve the efficiency of medical practice using a printed matter of medical information.

  The portable display device according to the present embodiment is a portable display device that is accessible to a medical image storage device that stores a plurality of pieces of medical information, and stores a captured image that uses a material representing the medical information as a subject. A captured image selection unit that selects a captured image specified by the user from a list of captured images stored in the storage unit, and medical information included in the selected captured image Identifying unit for identifying identification information for image processing from the captured image, and acquiring unit for acquiring medical information included in the captured image from the medical image storage device based on the identification information Are provided.

The figure which shows an example of the screen in the conference which concerns on a medical treatment. The figure which shows the structure of the data acquisition system at the time of a conference containing the portable display apparatus which concerns on 1st Embodiment. The figure which shows an example of the screen which concerns on 1st Embodiment. The figure which shows an example of the picked-up image data which makes the screen of FIG. 3 a subject. The figure which shows the structure of the data acquisition system at the time of a conference containing the portable display apparatus which concerns on 2nd Embodiment. The figure which shows an example of the screen which concerns on 2nd Embodiment. The figure which shows an example of the picked-up image data which makes the screen of FIG. 6 a subject.

  Hereinafter, the portable display device according to the present embodiment will be described with reference to the drawings.

  The portable display device according to this embodiment is used in a conference or the like. A conference is a place where multiple medical professionals discuss a specific agenda using multiple materials. As the material, printed materials of medical information, handwritten comments by users, etc., photographs, etc. are appropriate. For example, a conference discusses a treatment policy and a treatment plan for a specific patient while referring to a plurality of printed images. With the increasing importance of team medical care, the frequency of conferences is expected to increase.

  In a conference, a plurality of materials are usually attached to a screen so as to be visually recognized by a plurality of medical workers (participants). FIG. 1 is a diagram illustrating an example of a screen in a conference. Examples of screens include schaukasten, whiteboard, and blackboard. However, the screen is not limited to these, and any screen can be used as long as a printed material can be attached thereto. Examples of medical information used in the conference include all medical information converted into electronic data such as medical image data and measurement report data. Examples of the printed matter include a printed matter of medical image data (hereinafter referred to as a print image), a printed matter of measurement report data (hereinafter referred to as a print measurement report), and the like. The medical information is not limited to these, and may be medical record (electronic medical record) data, various measurement results, and the like. Accordingly, the printed matter of medical information may be printed matter data of medical records or printed matter of measurement results. Moreover, as shown in FIG. 1, the handwritten comment by a medical worker etc. may be written in or attached to the screen.

  A plurality of medical workers (participants) discuss with reference to a plurality of printed materials and comments attached to the screen. During the conference, multiple healthcare professionals discuss reordering and rearranging the printed images attached to the screen. The medical staff takes a screen image (hereinafter referred to as a captured image) using the camera function of the portable display device according to the present embodiment. In medical practice such as diagnosis and treatment planning after the conference, the medical staff can recall the content and flow of the conference by reviewing the captured image on the screen at the time of the conference.

  At this time, it is conceivable to review the printed image drawn on the captured image. By enlarging the captured image by image processing, it is possible to visually recognize a pixel region (hereinafter referred to as a printed product region) related to the printed product in the captured image. However, the image quality and resolution of the printed region in the photographed image is deteriorated as compared with the original medical information.

  The portable display device according to the present embodiment can automatically acquire medical information from a captured image having a printed matter of medical information as a subject. Hereinafter, the portable display device according to the present embodiment will be described separately for the first embodiment and the second embodiment.

(First embodiment)
FIG. 2 is a diagram illustrating a configuration of the conference time data capturing system 1 including the portable display device 100 according to the first embodiment. As shown in FIG. 2, the conference time data capturing system 1 according to the first embodiment includes a portable display device 100, a medical device 200, and a medical image storage device (PACS: Picture archiving and communication system) 300. The portable display device 100 and the medical image storage device 300 are connected via a network. The medical device 200 and the portable display device 100, or the medical device 200 and the medical image storage device 300 do not necessarily have to be connected via a network, and may be connected via a network. Good or not connected.

  The portable display device 100 is a portable display terminal having a camera function and a communication function. Examples of the portable display device 100 include a mobile phone device, a PDA (personal digital assistance) device, and a portable tablet PC (personal computer) device. The portable display device 100 includes an imaging unit 103, an image data storage unit 105, a link information specifying unit 107, a medical information acquisition unit 109, a display unit 111, and an operation unit 113 with the control unit 101 as a center. The photographing unit 103 photographs a subject using a camera function and generates photographed image data related to the subject. The image data storage unit 105 stores image data such as photographed image data. The link information specifying unit 107 performs image processing on the captured image data and specifies link information related to medical information. The medical information acquisition unit 109 acquires medical information from the medical image storage device 300 according to the link information. The display unit 111 displays various information such as captured image data and medical information. As the display unit 111, for example, a CRT display, a liquid crystal display, an organic EL display, a plasma display, or the like can be used as appropriate. The operation unit 113 receives various commands and information input via an input device by a user such as a medical worker. As an input device, a keyboard, a mouse, various switches, and the like can be used as appropriate. The control unit 101 includes a central processing unit (CPU) and a random success memory (RAM). The control unit 101 develops a program for this embodiment and controls each unit according to the program.

  The medical device 200 is a device capable of printing medical information. Examples of the medical device include a medical image diagnostic device, a medical image observation device (viewer), a medical image processing device (workstation), and the like. As the medical image diagnostic apparatus, modalities such as an X-ray diagnostic apparatus, an X-ray computed tomography apparatus, a magnetic resonance diagnostic apparatus, an ultrasonic diagnostic apparatus, a SPECT apparatus, and a PET apparatus can be applied. The medical device 200 includes a link information embedding unit 201 and a printing unit 203. The link information embedding unit 201 embeds link information in medical information. The printing unit 203 prints out the medical information.

  The medical image storage device 300 is a computer device that stores a plurality of medical information. The medical image storage apparatus 300 stores each piece of medical information in association with link information, patient information, examination information, and the like. The link information is identification information for uniquely specifying medical information. Examples of the link information include address information such as a URL indicating a storage location of medical information, DICOM_Instance_UID, medical information ID, date of generation of medical information, and the like. Patient information includes patient ID and patient name. The inspection information includes an inspection ID and an inspection date. As described above, the medical image storage device 300 is connected to the portable display device 100 via a network. In response to the transmission request from the portable display device 100, the medical image storage device 300 transmits the medical information to the requested portable display device 100 via the network.

  Next, an operation example of the conference time data capturing system 1 according to the first embodiment will be described with reference to FIG.

  The link information embedding unit 201 of the medical device 200 embeds link information in the medical information to be printed. More specifically, the link information embedding unit 201 converts link information related to medical information to be printed into a code, and adds the code to the medical information. Examples of the code include a one-dimensional code and a two-dimensional code. An example of the two-dimensional code is a QR code (registered trademark). Hereinafter, for the sake of specific description, it is assumed that the code is a two-dimensional code. The medical information to be printed is designated by the user via an input device or the like provided in the medical device 200. The medical information to be printed may be stored in advance in the medical device 200, or may be taken into the medical device 200 from the image storage device 300 via a network. The link information related to the medical information to be printed may be extracted from the supplementary information associated with the medical information to be printed or may be input by the user via an input device or the like provided in the medical device 200. good. The medical information to be printed in which the two-dimensional code is embedded is supplied to the printing unit 203.

  The printing unit 203 prints the medical information to be printed in which the two-dimensional code is embedded on the printing material. The object to be printed may be any object as long as medical information can be drawn. For example, paper or a film is adopted as the substrate. The medical information printed out is called a printed matter. A two-dimensional code is drawn on the printed matter.

  At the time of the conference, a plurality of medical workers attach a printed matter on which a two-dimensional code is drawn on the screen. Typically, multiple prints are attached to the screen to discuss the subject of discussion at the conference. Examples of discussion subjects at the conference include specific diseases and specific patients.

  FIG. 3 is a diagram illustrating an example of a screen according to the first embodiment. As shown in FIG. 3, a plurality of printed materials are attached to the screen. As the printed matter, for example, a print image that is a print output of medical image data or a print measurement report that is a print output of measurement report data is attached. A two-dimensional code is added to the print image and the print measurement report. In addition, comments by medical staff such as comment A and comment B may be pasted on the screen. As described above, the printed matter may be a printed medical record that is a printed output of medical record data. In FIG. 3, a plurality of printed materials are attached to the screen. However, the present embodiment is not limited to this. That is, a single printed matter may be attached to the screen.

  If the user decides to save the content of the conference, the user inputs a shooting start instruction via the operation unit 113. At this time, the user points the lens built in the portable display device 100 toward the screen as the subject. In response to the input of the shooting start instruction, the shooting unit 103 performs shooting. As a result, the photographing unit 103 can photograph photographed image data having a plurality of printed materials attached to the screen as subjects. The captured image data is supplied to the image data storage unit 105.

  FIG. 4 is a diagram illustrating an example of captured image data IP having the screen of FIG. 3 as a subject. As shown in FIG. 4, the captured image data IP includes a pixel area (hereinafter referred to as a screen area) RS relating to the screen. The screen area RS is a pixel area (hereinafter referred to as a print image area) RI related to a print image, a pixel area (hereinafter referred to as a print measurement report area) RR related to a print measurement report, and a pixel area (hereinafter referred to as a comment area) related to a comment. ) RZ is included. Each of the print image area RI and the print measurement report area RR includes a pixel area (hereinafter referred to as a code area) RC related to a two-dimensional code. Hereinafter, when there is no particular distinction between printed materials such as print images and print measurement reports, a pixel area related to the printed material is referred to as a printed material area.

  The image data storage unit 105 stores the captured image data supplied from the imaging unit 103. The captured image data is stored in association with conference identification information or patient information. The conference identification information includes, for example, information that can identify the conference such as the conference name, conference date and time, and conference location. The conference information can be input by the user via the operation unit 113. Note that, when a voice generated at the conference is recorded using a voice recording function (not shown), the image data storage unit 105 may store the voice data in association with the photographed image data.

  When the user wants to observe the captured image data after the conference is finished, the user designates the captured image data to be observed from the captured image data stored in the image data storage unit 105 via the operation unit 113. For example, the control unit 101 displays a list of captured image data stored in the image data storage unit 105 in order to assist the user in specifying the observation target. The list includes a record relating to captured image data stored in the image data storage unit 105. Each record includes at least one item such as patient information and conference information regarding each captured image data. The user selects a record related to the captured image data to be observed from the list via the operation unit 113. The control unit 101 sets a captured image corresponding to the record selected via the operation unit 113 as captured image data to be observed. The control unit 101 reads the captured image data to be observed from the image data storage unit 105 and displays it on the display unit 111. The user confirms the contents at the conference while observing the captured image data. When the user wants to observe the original medical information of the printed material that is the subject of the captured image data on the portable display device 100 during observation of the captured image data, the user inputs an acquisition instruction via the operation unit 113. When an acquisition instruction is input, the control unit 101 causes the link information specifying unit 107 to perform a specifying process.

  In the specifying process, the link information specifying unit 107 specifies the link information embedded in the medical information from the captured image data by image processing. Specifically, first, the link information identification unit 107 identifies a printed matter area to be read from a code from photographed image data using an existing image processing technique. When the photographed image data includes only a single print area, the print area is automatically set as a reading target. The link information specifying unit 107 applies an existing two-dimensional code recognition technique to the captured image data and specifies a code area from the printed material area.

  When the photographed image data includes a plurality of printed material regions, the user specifies a printed material region to be displayed from among the plurality of printed material regions via the operation unit 113. Specifically, first, the link information specifying unit 107 performs image processing on the captured image data, and individually divides each of a plurality of printed material areas included in the captured image into image data files. The image data of the print area after each division will be referred to as print image data. The printed material image data includes a code region having the same form as the code region included in the derived printed material region. The printed image is stored in the image data storage unit 105 in association with conference information or patient information. The user selects the print image data to be displayed from the print image data stored in the image data storage unit 105 via the operation unit 113. The link information specifying unit 107 sets the selected printed image data as a reading target. The link information specifying unit 107 applies an existing two-dimensional code recognition technique to the print image data to be read, and specifies a code area from the print image data.

  When the code area is specified, the link information specifying unit 107 performs image processing on the code area to be read to restore the link information indicated by the code area. The restored link information corresponds to the link information expressed by the two-dimensional code that is the imaging target of the code area. The link information is supplied to the medical information acquisition unit 109.

  The medical information acquisition unit 109 acquires medical information to be displayed from the medical image storage apparatus 300 via the network according to the supplied link information. Specifically, the acquisition unit 109 transmits a medical information transmission request together with the link information to the medical image storage device 300 via the network. The medical image storage device 300 reads the medical information associated with the link information and transmits the read medical information to the portable display device 100 via the network. The medical information acquisition unit 109 receives the transmitted medical information.

  When the medical information is acquired, the control unit 101 displays the acquired medical information on the display unit 111. The displayed medical information has a high resolution and a high image quality as compared with the printed region in the captured image data. Thereby, the user can confirm medical information in more detail.

  This is the end of the description of the operation example of the conference time data capturing system 1 according to the first embodiment.

  As described above, the portable display device 100 according to the first embodiment is configured to be accessible to the medical image storage device 300 in which a plurality of medical information is stored. The portable display device 100 includes an image data storage unit 105, a link information specifying unit 107, and a medical information acquisition unit 109. The image data storage unit 105 stores captured image data having a printed matter related to medical information as a subject. The link information specifying unit specifies link information for specifying medical information from imaged image data by image processing. The medical information acquisition unit 109 acquires medical information corresponding to the printed matter included in the captured image data from the medical image storage device 300 according to the link information.

  With the above configuration, the portable display device 100 can automatically acquire medical information of the observation target from the captured image data in which the medical information to which the code indicating the link information is added is rendered using the link information. it can. Therefore, the user can observe the original medical information regarding the printed matter attached to the screen at the time of the conference on the portable display device 100. By observing the medical information and the captured image data, the user can easily clearly remember the contents and flow at the time of the conference. Further, by observing medical information with high image quality and high resolution as compared with the printed matter depicted in the photographed image data, detailed examination can be performed using the portable display device 100.

  Thus, according to the first embodiment, the efficiency of medical practice using a printed matter of medical information is realized.

(Second Embodiment)
In the first embodiment, the code linked to the link information is drawn on the printed matter. In the second embodiment, it is assumed that no code is drawn on the printed matter. Hereinafter, the portable display device according to the second embodiment will be described. In the following description, components having substantially the same functions as those in the first embodiment are denoted by the same reference numerals, and redundant description is provided only when necessary.

  FIG. 5 is a diagram showing a configuration of the conference time data capturing system 2 including the portable display device 400 according to the second embodiment. As shown in FIG. 5, the conference time data capturing system 2 includes a portable display device 400, a medical device 500, and a medical image storage device (PACS) 300. The portable display device 400 includes an imaging unit 103, an image data storage unit 105, a display unit 111, an operation unit 113, a character information specifying unit 115, and a medical information acquisition unit 117 with the control unit 101 as a center. The character information specifying unit 115 performs image processing on the captured image data and specifies character information for specifying the captured image data. The medical information acquisition unit acquires medical information from the medical image storage device 300 according to the character information. The medical device 500 does not have the link information embedding unit 201 but has a printing unit 203.

  Next, an operation example of the conference time data capturing system 2 according to the second embodiment will be described with reference to FIG.

  The printing unit 203 prints medical information to be printed on a printing material, and outputs a printed material related to the medical information to be printed. In the second embodiment, the link information is not embedded in the medical information, and therefore the code is not drawn on the printed matter.

  FIG. 6 is a diagram illustrating an example of a screen according to the second embodiment. As shown in FIG. 6, a plurality of printed materials are attached to the screen. The code is not drawn on the printed matter. As shown in FIG. 6, comments are attached to the screen in addition to the print image and the print measurement report. In addition, a character string for specifying photographed image data is written on the screen, or a paper or the like on which the character string is written is attached. As the character string, a character string indicating conference specific information (hereinafter referred to as a conference specific character string) or a character indicating patient information related to a patient being discussed in the conference (hereinafter referred to as a patient specific character string). Is adopted. A conference specific character string is a character string which shows conference specific information, such as a conference name and conference ID, for example. The patient specifying character string is a character string indicating patient information such as a patient name and a patient ID. The conference specific character string and the patient specific character string are entered on the screen or attached by the user.

  If the user decides to save the content of the conference, the user inputs a shooting start instruction via the operation unit 113. In response to the input of the shooting start instruction, the shooting unit 103 performs shooting. Thereby, the photographing unit 103 can photograph a photographed image with a plurality of printed materials attached to the screen as subjects. The captured image data is supplied to the image data storage unit 105.

  FIG. 7 is a diagram illustrating an example of captured image data IP2 having the screen of FIG. 6 as a subject. As shown in FIG. 7, the photographed image data IP2 includes a screen region RS2 that is a pixel region related to the screen. The screen area RS includes a print image area RI2 that is a pixel area related to a print image, a print measurement report area RR2 that is a pixel area related to a print measurement report, and a comment area RZ2 that is a pixel area related to a comment. Each of the print image area RI2 and the print measurement report area RR2 does not include a code area that is a pixel area related to a code. The screen area RS2 includes a character string area RM that is a pixel area related to a conference specific character string or a patient specific character string.

  The image data storage unit 105 stores the captured image data supplied from the imaging unit 103. The captured image data is stored in association with conference identification information or patient information.

  When the user wants to observe the captured image data after the conference is finished, the user designates the captured image data to be observed from the captured image data stored in the image data storage unit 105 via the operation unit 113. When the imaged image data to be observed is designated, the control unit 101 reads out the imaged image data to be observed from the image data storage unit 105 and displays it on the display unit 111. The user confirms the contents at the conference while observing the captured image data. When observing the original medical information of the printed material that is the subject of the photographic image data during observation of the photographic image data, the user inputs an acquisition instruction via the operation unit 113. When an acquisition instruction is input, the control unit 101 causes the character information specifying unit 115 to perform a specifying process.

  In the specifying process, the character information specifying unit 115 specifies the conference character string or the patient character string from the captured image data by image processing. Specifically, the character information specifying unit 115 specifies a conference character string or a patient character string from the captured image data using an OCR (optical character reader) function. The conference character string or patient character string data is supplied to the medical information acquisition unit 117.

  The medical information acquisition unit 117 acquires medical information corresponding to the printed matter included in the captured image data from the medical image storage device 300 via the network according to the supplied conference character string or patient character string data. For example, the medical information acquisition unit 117 transmits a medical information transmission request together with the conference character string data to the medical image storage apparatus 300 via the network. The medical image storage apparatus 300 reads the medical information associated with the conference character string, and transmits the read medical information to the portable display device 100 via the network. The medical information acquisition unit 117 transmits a medical information transmission request together with the patient character string data to the medical image storage apparatus 300 via the network. The medical image storage device 300 reads the medical information associated with the patient character string, and transmits the read medical information to the portable display device 100 via the network. The medical information acquisition unit 117 receives the transmitted medical information.

  When a plurality of printed materials are attached to the screen, the same conference character string or patient character string is associated with a plurality of pieces of medical information corresponding to the plurality of printed materials in the medical image storage apparatus 300, respectively. It becomes. In this case, the medical information acquisition unit 117 acquires all the medical information associated with the same conference character string or patient character string from the medical image storage device 300.

  When the medical information is acquired, the control unit 101 displays the acquired medical information on the display unit 111. The displayed medical information has a high resolution and a high image quality as compared with the printed region in the captured image data. Thereby, the user can confirm medical information in more detail.

  This is the end of the description of the operation example of the conference time data capturing system 2 according to the second embodiment.

  As described above, the portable display device 400 according to the second embodiment is configured to be accessible to the medical image storage device 300 in which a plurality of medical information is stored. The portable display device 100 includes an image data storage unit 105, a character information identification unit 115, and a medical information acquisition unit 117. The image data storage unit 105 stores captured image data having a printed matter related to medical information as a subject. The character information specifying unit 115 specifies a character string related to conference specifying information (conference specifying character string) or a character string related to patient information (patient specifying character string) for specifying the captured image data from the captured image data by image processing. . The medical information acquisition unit 109 acquires medical information corresponding to the printed matter included in the captured image data from the medical image storage device 300 according to the conference specific character string or the patient specific character string.

  With the above configuration, the portable display device 100 automatically uses the conference-specific character string or the patient-specific character string from the captured image data in which the conference-specific character string or the patient-specific character string is rendered, and automatically Information can be acquired. Therefore, the user can observe the original medical information regarding the printed matter attached to the screen at the time of the conference on the portable display device 100. By observing the medical information and the captured image data, the user can easily clearly remember the contents and flow at the time of the conference. Further, by observing medical information with high image quality and high resolution as compared with the printed matter depicted in the photographed image data, detailed examination can be performed using the portable display device 100.

  Thus, according to the second embodiment, the efficiency of medical practice using a printed matter of medical information is realized.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Conference time data acquisition system, 100 ... Portable display apparatus, 101 ... Control part, 103 ... Imaging | photography part, 105 ... Image data memory | storage part, 107 ... Link information specific | specification part, 109 ... Medical information acquisition part, 111 ... Display part DESCRIPTION OF SYMBOLS 113 ... Operation part 200 ... Medical device 201 ... Link information embedding part 203 ... Printing part 300 ... Medical image storage apparatus

Claims (9)

A portable display device accessible to a medical image storage device storing a plurality of medical information,
A storage unit for storing a photographed image with a material representing medical information as a subject;
A captured image selection unit that selects a user-specified captured image from a list of captured images stored in the storage unit;
An identifying unit for identifying identification information for identifying medical information included in the selected captured image by image processing from the captured image;
Based on the identification information, an acquisition unit that acquires medical information included in the captured image from the medical image storage device;
A portable display device comprising: The material is a medical conference material,
The list is a list including at least one information of a patient name, a conference name, and a conference date.
The portable display device according to claim 1. The specifying unit is a material extracting unit that separates and extracts a plurality of materials included in one captured image;
A material selection unit for selecting one material from the plurality of extracted materials,
The acquisition unit acquires medical information corresponding to the selected material based on the identification information;
The portable display device according to claim 1 or 2. A portable display device accessible to a medical image storage device storing a plurality of medical information,
A storage unit for storing a photographed image with a material representing medical information as a subject;
A specifying unit for specifying first identification information for specifying the medical information or second identification information for specifying the captured image by image processing from the captured image;
An acquisition unit that acquires medical information corresponding to a printed matter included in the photographed image from the medical image storage device according to the first identification information or the second identification information;
A portable display device comprising: A sign representing the first identification information is added to the material depicted in the captured image,
The specifying unit recognizes the code drawn in the captured image by image processing;
The acquisition unit acquires medical information associated with first identification information corresponding to the code from the medical image storage device;
The portable display device according to claim 4.   The portable display device according to claim 5, wherein the code is a one-dimensional code or a two-dimensional code. In the photographed image, a character string for specifying the photographed image is depicted as the second identification information,
The specifying unit specifies the character string drawn in the photographed image by image processing,
The acquisition unit acquires medical information associated with the character string from the medical image storage device;
The portable display device according to claim 4.   The portable display device according to claim 7, wherein the character string is a character string for specifying a conference in which the material is used or a character string for specifying a patient to be discussed in the conference.   The portable display device according to claim 4, further comprising a photographing unit that photographs the photographed image.

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