WO2012046310A1 - Endoscope device - Google Patents

Endoscope device Download PDF

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Publication number
WO2012046310A1
WO2012046310A1 PCT/JP2010/067538 JP2010067538W WO2012046310A1 WO 2012046310 A1 WO2012046310 A1 WO 2012046310A1 JP 2010067538 W JP2010067538 W JP 2010067538W WO 2012046310 A1 WO2012046310 A1 WO 2012046310A1
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WO
WIPO (PCT)
Prior art keywords
image
electronic document
displayed
endoscopic image
data
Prior art date
Application number
PCT/JP2010/067538
Other languages
French (fr)
Japanese (ja)
Inventor
孝一 松井
Original Assignee
オリンパス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by オリンパス株式会社 filed Critical オリンパス株式会社
Priority to PCT/JP2010/067538 priority Critical patent/WO2012046310A1/en
Publication of WO2012046310A1 publication Critical patent/WO2012046310A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002—Operational features of endoscopes
    • A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
    • A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002—Operational features of endoscopes
    • A61B1/00043—Operational features of endoscopes provided with output arrangements
    • A61B1/00045—Display arrangement
    • A61B1/00052—Display arrangement positioned at proximal end of the endoscope body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00066—Proximal part of endoscope body, e.g. handles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports
    • G02B23/2484—Arrangements in relation to a camera or imaging device

Definitions

  • the present invention relates to an endoscope apparatus used for observation of a subject (including a subject, a test object, and a test body).
  • Endoscope devices are mainly used for observation of machines, devices, piping, etc. for inspection.
  • the endoscope apparatus captures an image with an image sensor arranged at the tip of an elongated insertion portion that is inserted into a subject, and displays an image of the subject on a display portion.
  • the electronic document has not been displayed on the display unit mounted on the main body of the endoscope apparatus.
  • a PC Personal Computer
  • an endoscopic image an image of a subject imaged by the endoscope
  • a training manual on a screen.
  • Patent Document 2 describes that a remote controller for remotely controlling an endoscope downloads a manual by communicating with a server, and displays the downloaded manual on a screen together with an endoscopic image (for example, paragraphs). 0078).
  • Patent Documents 1 and 2 a manual is displayed on the screen of a PC or remote controller that can be used independently of the main body of the endoscope apparatus, and an electronic document is displayed on the display section of the main body of the endoscope apparatus.
  • the display of is not disclosed.
  • the display unit mounted on the main body of the endoscope apparatus is downsized.
  • the operator confirms the image displayed on the small display unit it is assumed that the image is enlarged.
  • image data such as JPEG, GIF, or BMP including a raster image
  • the image quality is deteriorated and the image is difficult to see than before enlargement.
  • an object of the present invention is to provide an endoscope apparatus that can display an electronic document and can reduce a decrease in the visibility of the electronic document.
  • the present invention provides an imaging unit that captures an image of an object and generates an image of the object, an image of the object, and an electronic document including one or a plurality of pages including data that does not deteriorate in quality when enlarged or reduced.
  • An endoscopic device having a display unit that simultaneously displays
  • the electronic document includes a vector image that is data whose quality does not deteriorate during the enlargement or reduction.
  • the display unit displays the image of the subject and the electronic document in an overlapping manner.
  • the display unit displays the image of the subject and the electronic document side by side.
  • control unit may correspond to the operation unit with respect to one of the subject image displayed on the display unit and the electronic document in response to the operation of the operation unit.
  • the display control associated with the operation is performed, and the display control target is switched between the image of the subject and the electronic document in response to the operation of the operation unit.
  • display control associated with an operation of the operation unit with respect to an operation unit having an operation member, the image of the subject displayed on the display unit, and the electronic document A control unit that performs display, the display unit further displays information indicating a target of display control, and the control unit is further displayed on the display unit in response to an operation of the operation unit
  • the display unit When the information is controlled so that the information indicates one of the subject image and the electronic document, and the information indicates the subject image, the subject image displayed on the display unit
  • the display control associated with the operation of the operation unit is performed and the information indicates the electronic document, the operation of the operation unit is performed on the electronic document displayed on the display unit.
  • Associated display system It is carried out.
  • an electronic document can be displayed, and a reduction in visibility of the electronic document can be reduced.
  • FIG. 1 is a configuration diagram of an endoscope apparatus according to a first embodiment of the present invention.
  • FIG. 2 is a configuration diagram of an operation unit included in the endoscope apparatus according to the first embodiment of the present invention.
  • FIG. 3 is a configuration diagram of an operation unit included in the endoscope apparatus according to the first embodiment of the present invention.
  • FIG. 4 is a block diagram showing an internal configuration of the endoscope apparatus according to the first embodiment of the present invention.
  • FIG. 5 is a diagram illustrating a state in which an endoscopic image is displayed according to the first embodiment of the present invention.
  • FIG. 6 is a view showing a state in which an electronic document is displayed according to the first embodiment of the present invention.
  • FIG. 7 is a flowchart showing a processing procedure when an electronic document is displayed in the first embodiment of the present invention.
  • FIG. 8 is a flowchart showing a processing procedure when an electronic document is displayed in the first embodiment of the present invention.
  • FIG. 9 is a block diagram showing an internal configuration of the endoscope apparatus according to the second embodiment of the present invention.
  • FIG. 10 is a diagram showing a state in which an endoscopic image and an electronic document are displayed according to the second embodiment of the present invention.
  • FIG. 11 is a diagram showing a state in which an endoscopic image and an electronic document are displayed in the second embodiment of the present invention.
  • FIG. 12 is a block diagram showing an internal configuration of an endoscope apparatus according to the third embodiment of the present invention.
  • FIG. 13 is a diagram showing a state in which an endoscopic image and an electronic document are displayed according to the third embodiment of the present invention.
  • FIG. 14 is a diagram showing a state in which an endoscopic image and an electronic document are displayed according to the third embodiment of the present invention.
  • FIG. 15 is a flowchart illustrating a processing procedure when image data is displayed.
  • FIG. 16 is a flowchart showing a processing procedure when image data is displayed.
  • an electronic document is a file composed of characters, figures, photographs, or a combination thereof, and refers to a file consisting of one page or a plurality of pages (for example, a pdf file).
  • Specific examples of electronic documents include a design drawing of an object, an inspection manual, and an instruction manual for an endoscope apparatus.
  • the quality (image quality) of image data such as jpg data deteriorates during enlargement / reduction, but the quality (image quality) of an electronic document does not deteriorate during enlargement / reduction.
  • FIG. 1 shows the configuration of the endoscope apparatus according to the present embodiment.
  • the main body 1 has a processing circuit for processing an endoscopic image that is an image of a subject.
  • a display unit 11 composed of an LCD (Liquid Crystal Display) is provided. It is also possible to configure the display unit 11 with another display device such as an organic EL.
  • An endoscopic image that is an image of a subject and an electronic document are displayed on the display unit 11.
  • a power button 21 and a LIGHT button 22 are provided below the display unit 11. Functions assigned to the power button 21 and the LIGHT button 22 will be described later.
  • the operation unit 5 is connected via the universal cable 6, and the insertion unit 2 is connected to the operation unit 5.
  • the operation unit 5 includes an operation member for controlling the endoscope apparatus and controlling display of an endoscopic image and an electronic document.
  • the insertion portion 2 is formed of an elongated and flexible member so that the distal end portion 3 at the distal end is inserted into a machine, apparatus, piping or the like and guided to a position for observation.
  • the tip 3 has an LED (Light Emitting Diode) and an image sensor.
  • the bending portion 4 connected to the distal end portion 3 has a bending device. When the bending device is bent, the position of the distal end portion 3 changes and the imaging direction changes.
  • the operation unit 5 includes a joystick 23, a BRT lever 24, a MENU / EXIT button 25, a LIVE button 26, a joystick 27, a VIEW button 28, a ZOOM lever 29, and an FRZ / REC button 30 which are various operation members.
  • the joystick 23 is a member for controlling the bending operation of the bending portion 4. Functions assigned to other members provided in the operation unit 5 will be described later.
  • FIG. 4 shows an internal configuration of the endoscope apparatus.
  • the image sensor 12 is inside the tip 3.
  • An A / D converter 13, a frame memory 14, a CPU (Central Processing Unit) 15, a frame memory 16, an OSD buffer 17, an image switching device 18, and an OSD superimposing device 19 are in the housing of the main body 1.
  • the display unit 11 is on the surface of the main body unit 1.
  • the recording medium 7 is a medium that can be attached to and detached from the main body 1.
  • the electronic document is stored in the recording medium 7.
  • the image sensor 12 is composed of a CCD (Charge-Coupled Device), and images an object to generate an image signal. It is also possible to configure the image sensor 12 with a CMOS (Complementary Metal Metal Oxide Semiconductor) sensor or the like.
  • the A / D converter 13 converts the analog imaging signal output from the imaging device 12 into a digital image signal that forms an endoscopic image.
  • the imaging element 12 and the A / D converter 13 constitute an imaging unit according to one aspect of the present invention.
  • the frame memory 14 stores the image signal output from the A / D converter 13.
  • the CPU 15 controls each part of the endoscope apparatus by executing a program in which the control contents of the endoscope apparatus are described.
  • the CPU 15 constitutes a control unit according to an aspect of the present invention.
  • the frame memory 16 is a memory for storing an electronic document when the electronic document recorded on the recording medium 7 is displayed. When displaying the electronic document recorded on the recording medium 7, the CPU 15 reads the electronic document from the recording medium 7 and writes it in the frame memory 16.
  • the OSD buffer 17 is a buffer for storing data such as characters and symbols to be displayed as OSD (On Screen Display) information.
  • the image signal output from the frame memory 14, that is, the endoscopic image, is input to the first input terminal of the image switcher 18.
  • the electronic document output from the electronic document frame memory 16 is input to the second input terminal of the image switcher 18.
  • the image switching unit 18 outputs one of an endoscopic image input to the first input terminal and an electronic document input to the second input terminal to the OSD superimposing unit 19. Switching between the endoscopic image and the electronic document output from the image switcher 18 is controlled by the CPU 15.
  • the OSD superimposing unit 19 superimposes the data stored in the OSD buffer 17 on the endoscopic image or electronic document output from the image switching unit 18. As a result, the menu or the like is superimposed on the endoscopic image or electronic document.
  • the display unit 11 displays an endoscopic image or an electronic document output from the OSD superimposer 19.
  • FIG. 5 shows a screen of the display unit 11 when an endoscopic image is displayed.
  • an endoscopic image including the subject 100 is displayed.
  • FIG. 6 shows a screen of the display unit 11 when an electronic document is displayed.
  • FIG. 105 of the subject and a character 110 indicating the name of the subject are displayed.
  • the operator can switch the display of the endoscopic image and the subject image by operating the operation unit 5. That is, the operator can switch between the state shown in FIG. 5 and the state shown in FIG.
  • a bending device an LED, and the like are also included in the endoscope device.
  • the CPU 15 controls the image switch 18 so as to select the output of the frame memory 14.
  • the CPU 15 writes data such as the menu into the OSD buffer 17.
  • the OSD superimposing device 19 superimposes data such as a menu on the endoscopic image output from the image switching device 18 as necessary.
  • the display unit 11 displays the endoscopic image output from the OSD superimposer 19.
  • the image sensor 12 continuously captures the subject in units of frames.
  • an endoscopic image of one frame is generated, the endoscopic image of the previous frame stored in the frame memory 14 is overwritten by the endoscopic image. Further, operations from writing to the frame memory 14 to displaying on the display unit 11 are sequentially performed on the endoscopic images of each frame. For this reason, the display unit 11 displays a moving image including an endoscopic image of each frame.
  • a live mode for displaying a live endoscope image and a switching display mode for switching between a live endoscope image and an electronic document are provided.
  • the operation for displaying the endoscope image in the live state is the above-described operation.
  • the CPU 15 When displaying the electronic document, the CPU 15 reads the electronic document from the recording medium 7 and writes it in the frame memory 16. Further, the CPU 15 controls the image switch 18 so as to select the output of the frame memory 16. Further, the CPU 15 reads data attached to the electronic document (file name of electronic document, total number of pages, page number, etc.) from the recording medium 7 and writes it in the OSD buffer 17.
  • the image switching unit 18 outputs the electronic document output from the frame memory 16 to the OSD superimposing unit 19.
  • the OSD superimposing unit 19 superimposes the data stored in the OSD buffer 17 on the electronic document output from the image switching unit 18. It is possible to set whether or not to display OSD information by operating the operation unit 5.
  • the display unit 11 displays the electronic document output from the OSD superimposer 19.
  • the CPU 15 records the endoscopic image output from the frame memory 14 on the recording medium 7.
  • the CPU 15 reads the endoscopic image from the recording medium 7 and writes it in the frame memory 16. Further, the CPU 15 controls the image switch 18 so as to select the output of the frame memory 16.
  • Table 1 shows the functions assigned to these members. In other words, Table 1 shows the correspondence between each member and the function assigned to each member.
  • Each member is assigned a function that can be used when an endoscopic image is displayed and a function that can be used when an electronic document is displayed.
  • Some of the functions that can be used when the electronic document is displayed are functions that are related to the functions that can be used when the endoscopic image is displayed. More specifically, some of the functions that can be used when an electronic document is displayed are functions that can be inferred from the functions that can be used when an endoscopic image is displayed. Alternatively, some of the functions that can be used when the electronic document is displayed are the same functions that can be used when the endoscopic image is displayed.
  • the power button 21 is a button operated by pressing. A function to turn on the power is assigned to the power button 21 as a function when the power is off. Further, the power button 21 is assigned a function that can be used when an endoscopic image is displayed and a function that can be used when an electronic document is displayed. . That is, when the operator operates the power button 21 while an endoscopic image or an electronic document is displayed, the power of the endoscope apparatus is turned off.
  • the LIGHT button 22 is a button operated by pressing. As a function that can be used when an endoscopic image is displayed, the LIGHT button 22 is assigned a function for controlling ON / OFF of the LED built in the distal end portion 3. The LIGHT button 22 is not assigned a function that can be used when an electronic document is displayed.
  • the BRT lever 24 is a lever that can move in two directions along the surface of the operation unit 5.
  • the CPU 15 recognizes that the BRT lever 24 is in a different state when the operator moves the BRT lever 24 in the first direction and when the operator moves the BRT lever 24 in the second direction. That is, when the operator moves the BRT lever 24 in the first direction, the BRT lever 24 is recognized to be in the first state, and when the operator moves the BRT lever 24 in the second direction, It is recognized that the BRT lever 24 is in the second state.
  • the BRT lever 24 is assigned a function for adjusting the brightness of the endoscopic image as a function that can be used when the endoscopic image is displayed.
  • the CPU 15 adjusts the brightness of the endoscopic image by controlling the signal amplification factor in the image sensor 12. More specifically, when the operator moves the BRT lever 24 in the first direction, the brightness of the endoscopic image changes in a direction in which the endoscopic image becomes brighter. Further, when the operator moves the BRT lever 24 in the second direction, the brightness of the endoscopic image changes in a direction in which the endoscopic image becomes dark.
  • the BRT lever 24 is assigned a function for turning a page of an electronic document as a function that can be used when the electronic document is displayed.
  • the CPU 15 reads the data of the page before or after the displayed page of the electronic document from the recording medium 7 and writes it to the frame memory 16. . More specifically, when the operator moves the BRT lever 24 in the first direction, the page changes in the direction in which the page increases. Further, when the operator moves the BRT lever 24 in the second direction, the page changes in the direction in which the page decreases.
  • the ZOOM lever 29 is a lever that can move in two directions along the surface of the operation unit 5.
  • the CPU 15 recognizes that the ZOOM lever 29 is in a different state when the operator moves the ZOOM lever 29 in the first direction and when the operator moves the ZOOM lever 29 in the second direction. That is, when the operator moves the ZOOM lever 29 in the first direction, the ZOOM lever 29 is recognized as being in the first state, and when the operator moves the ZOOM lever 29 in the second direction, It is recognized that the ZOOM lever 29 is in the second state.
  • the ZOOM lever 29 is assigned a function for adjusting the zoom of the endoscopic image as a function that can be used when the endoscopic image is displayed.
  • the CPU 15 performs zoom processing of the endoscopic image stored in the frame memory 14. More specifically, when the operator moves the ZOOM lever 29 in the first direction while the endoscopic image is displayed, the endoscopic image is enlarged and displayed. When the operator moves the ZOOM lever 29 in the second direction, the endoscopic image is reduced and displayed.
  • ZOOM lever 29 is assigned a function for adjusting the zoom of the electronic document as a function that can be used when the electronic document is displayed.
  • the CPU 15 adjusts the zoom of the electronic document. More specifically, when the operator moves the ZOOM lever 29 in the first direction, the electronic document is enlarged and displayed. Further, when the operator moves the ZOOM lever 29 in the second direction, the electronic document is reduced and displayed.
  • the ZOOM lever 29 is assigned a function of performing zoom adjustment, which is display control of the same content, on the endoscopic image and the electronic document.
  • the MENU / EXIT button 25 is a button operated by pressing.
  • the MENU / EXIT button 25 is assigned a function for displaying a menu for performing various settings for the endoscopic image as a function that can be used when the endoscopic image is displayed.
  • the various settings for the endoscopic image include, for example, settings related to a file name when recording the endoscopic image.
  • the MENU / EXIT button 25 is assigned a function for displaying a menu for performing various adjustments on the electronic document as a function that can be used when the electronic document is displayed.
  • Various adjustments to the electronic document include, for example, adjustments related to page feed of the electronic document, adjustments related to zoom adjustment of the electronic document, and the like.
  • the LIVE button 26 is a button operated by pressing.
  • the LIVE button 26 is assigned a function for displaying an endoscopic image in a live mode as a function that can be used when an endoscopic image is displayed.
  • the endoscopic image is displayed in the live mode.
  • the LIVE button 26 is assigned a function for displaying an endoscopic image in a live mode as a function that can be used when an electronic document is displayed.
  • the mode when the electronic document is displayed is the switching display mode described above.
  • the mode of the endoscope apparatus is switched from the switching display mode to the live mode, and the endoscopic image is displayed in the live mode.
  • the LIVE button 26 is assigned a function of displaying an endoscopic image in the live mode.
  • the joystick 27 is a lever that is operated by tilting it in an arbitrary direction.
  • the joystick 27 is assigned a function for selecting menu items for performing various settings for the endoscopic image as a function that can be used when the endoscopic image is displayed.
  • a menu is displayed.
  • menu items can be selected.
  • the mode change from the live mode to the switching display mode in which the endoscopic image and the electronic document are switched and displayed can be performed by selecting a menu item.
  • the joystick 27 is assigned a function for changing the display position of the electronic document as a function that can be used when the electronic document is displayed.
  • the display position of the electronic document can be changed by scrolling the electronic document within the page. It is also possible to continue scrolling and turn the pages of the electronic document.
  • the joystick 27 is also assigned a function for selecting menu items for performing various adjustments to the electronic document as a function that can be used when the electronic document is displayed.
  • a menu is displayed.
  • menu items can be selected.
  • the joystick 27 is assigned a function of performing selection control of menu items related to the endoscopic image and the electronic document.
  • the VIEW button 28 is a button operated by pressing. As a function that can be used when an endoscopic image is displayed in the live mode, a function for displaying the endoscopic image recorded on the recording medium 7 is assigned to the VIEW button 28. When the operator operates the VIEW button 28 while the endoscopic image is displayed in the live mode, the endoscopic image recorded on the recording medium 7 can be displayed.
  • the VIEW button 28 is assigned a function for switching between displaying an endoscopic image and an electronic document as a function that can be used when an endoscopic image is displayed in the display switching mode.
  • the CPU 15 reads the electronic document from the recording medium 7 and writes it to the frame memory 16 and selects the output of the frame memory 16.
  • the image switcher 18 is controlled to do so.
  • the CPU 15 reads data attached to the electronic document (file name of electronic document, total number of pages, page number, etc.) from the recording medium 7 and writes it in the OSD buffer 17.
  • the OSD superimposing device 19 superimposes data such as a menu on the endoscopic image output from the image switching device 18 as necessary. As a result, the endoscopic image is hidden and the electronic document is displayed on the display unit 11.
  • the VIEW button 28 is assigned a function for switching the display of the endoscopic image and the electronic document as a function that can be used when the electronic document is displayed in the display switching mode.
  • the CPU 15 controls the image switch 18 so as to select the output of the frame memory 14.
  • the CPU 15 writes data such as the menu into the OSD buffer 17.
  • the OSD superimposing device 19 superimposes data such as a menu on the endoscopic image output from the image switching device 18 as necessary.
  • the electronic document is hidden and the endoscopic image is displayed on the display unit 11.
  • the VIEW button 28 is assigned a display control function having the same content for switching the display of the endoscopic image and the electronic document with respect to the endoscopic image and the electronic document.
  • FRZ / REC button 30 is a button operated by pressing.
  • the FRZ / REC button 30 stops (freezes) the endoscopic image displayed on the display unit 11 as a function that can be used when the endoscopic image is displayed.
  • the function to record is assigned.
  • the CPU 15 stops writing the endoscopic image to the frame memory 14. Thereafter, the same endoscopic image in each frame is read from the frame memory 14 and output to the image switcher 18. For this reason, the same endoscopic image is displayed on the display unit 11 between frames.
  • the CPU 15 When the operator operates the FRZ / REC button 30 after the endoscopic image displayed on the display unit 11 is stopped, the CPU 15 records the endoscopic image output from the frame memory 14 in the recording medium 7. To do.
  • the FRZ / REC button 30 is not assigned a function that can be used when an electronic document is displayed.
  • the members provided on the power button 21, the LIGHT button 22, and the operation unit 5 provided on the main body 1 can be used when an endoscopic image is displayed.
  • Functions and functions that can be used when an electronic document is displayed are assigned.
  • Most of the functions that can be used when the electronic document is displayed are functions related to the functions that can be used when the endoscopic image is displayed. For this reason, it can be expected that an operator familiar with the operation of the endoscopic image can easily operate the electronic document.
  • FIG. 15 shows processing when image data is displayed.
  • image data is stored in the recording medium 7. Further, a frame buffer area is secured in the frame memory 16.
  • step S300 the CPU 15 reads image data from the recording medium 7. Subsequently, in step S305, the CPU 15 writes the read image data into the frame buffer in the frame memory 16.
  • step S ⁇ b> 400 the CPU 15 acquires an enlargement ratio or reduction ratio input via the operation unit 5.
  • step S405 the CPU 15 calculates and interpolates the pixels of the image data read in step S300 based on the enlargement ratio or reduction ratio acquired in step S400.
  • an interpolation method at this time a nearest neighbor method, a bilinear method, a bicubic method, or the like is used.
  • step S410 the CPU 15 writes the image data enlarged or reduced by pixel interpolation into the frame buffer in the frame memory 16. As described above, since the pixel interpolation process is performed when the image data is enlarged or reduced, the image quality deteriorates.
  • FIG. 7 shows processing when displaying an electronic document.
  • an electronic document is stored in the recording medium 7.
  • the electronic document includes position data, image data, drawing data, font data, and character data.
  • the position data is data indicating the position of an area for displaying image data, drawing data, and character data.
  • the position data is associated with image data, drawing data, and character data.
  • Image data is data including a raster image that represents an image as a set of dots.
  • Drawing data is data that forms a vector image that represents an image as a line connected by dots.
  • the drawing data includes the coordinates of the point indicating the drawing position, the attributes of the line to be drawn (line thickness, color, broken line, solid line, etc.), and the attributes of the surface surrounded by the drawn line (color, pattern, etc.) Contains information.
  • the font data is data that defines a font of a character (typeface, size, color, etc.). Font data is associated with character data.
  • the character data is data indicating characters (sentences).
  • the frame memory 16 has a position information buffer area, an image buffer area, a drawing data buffer area, a font buffer area, a character buffer area, and a frame buffer area.
  • step S100 the CPU 15 reads data for one page of the electronic document from the recording medium 7.
  • step S100 position data
  • step S110 the CPU 15 stores the position data in a position information buffer in the frame memory 16. Subsequently, the process returns to step S100.
  • step S115 the CPU 15 stores the image data in the image buffer in the frame memory 16. Subsequently, the process returns to step S100.
  • step S105 If the data read in step S100 is drawing data (step S105), the CPU 15 stores the drawing data in the drawing data buffer in the frame memory 16 in step S120. Subsequently, the process returns to step S100. If the data read in step S100 is font data (step S105), the CPU 15 stores the font data in the font buffer in the frame memory 16 in step S125. Subsequently, the process returns to step S100.
  • step S105 When the data read in step S100 is character data (step S105), in step S130, the CPU 15 stores the character data in a character buffer in the frame memory 16. Subsequently, the process returns to step S100.
  • step S135 the CPU 15 reads the position data from the position information buffer.
  • step S140 image data
  • step S145 the CPU 15 writes the image data into the frame buffer.
  • step S150 the CPU 15 sets the coordinates of the point indicated by the drawing data and the line attributes in the area indicated by the position data.
  • the line drawing position and line type are specified based on the surface attributes
  • the fill color and pattern within the surface are specified based on the surface attributes indicated by the drawing data
  • a vector image based on the specified contents is generated and stored in the frame buffer.
  • step S155 the CPU 15 specifies a character to be drawn based on the character data, and character based on the position data.
  • the drawing position is specified, the font of the character is specified based on the font data, a vector image based on the specified content is generated and written to the frame buffer.
  • step S ⁇ b> 200 the CPU 15 acquires an enlargement ratio or reduction ratio input via the ZOOM lever 29 of the operation unit 5.
  • step S205 the CPU 15 calculates and interpolates the pixels of the image data read in step S100 based on the enlargement ratio or reduction ratio acquired in step S200.
  • step S210 the CPU 15 writes the image data enlarged or reduced by pixel interpolation into the frame buffer in the frame memory 16. As described above, since the pixel interpolation process is performed when the image data is enlarged or reduced, the image quality deteriorates.
  • step S215 the CPU 15 uses the drawing data read in step S100 to perform drawing area position data and drawing position in the drawing area after performing enlargement or reduction based on the enlargement ratio or reduction ratio acquired in step S200. Calculates the coordinates of the point indicating and the attribute (thickness) of the line. Subsequently, in step S220, the CPU 15 generates a vector image of the line having the attribute calculated in step S215, and the frame buffer in the frame memory 16 corresponding to the position indicated by the position data and point coordinates calculated in step S215. Write to.
  • step S225 using the character data read in step S100, the CPU 15 performs enlargement or reduction with the position data of the drawing area after enlargement or reduction based on the enlargement ratio or reduction ratio acquired in step S200. And the size of the text after.
  • the font data obtained by replacing the character size data in the font data with the data calculated in step S225 is used in the next step S230.
  • step S230 the CPU 15 generates a character vector image based on the font data including the character size data calculated in step S225, and the frame memory corresponding to the position indicated by the position data calculated in step S225. 16 is written in the frame buffer.
  • graphics based on drawing data and characters based on text data are enlarged or reduced according to the line with the attribute enlarged or reduced according to the enlargement ratio or reduction ratio, or according to the enlargement ratio or reduction ratio.
  • a vector image containing the characters is generated. For this reason, image degradation after enlargement or reduction does not occur.
  • an electronic document can be displayed on the display unit 11 attached to the endoscope apparatus.
  • the operation unit 5 since a function for operating the electronic document is assigned to the operation unit 5 for operating the endoscopic image that is the image of the subject, the operation unit 5 is also used for the operation of the electronic document. be able to.
  • the electronic document is displayed using a vector image whose image quality (display quality) does not deteriorate, it is possible to reduce a decrease in visibility of the electronic document even when enlargement or reduction is performed.
  • Functions that change the display state (brightness and magnification) of an endoscopic image or electronic document between a plurality of states are assigned to members that can move in two directions, such as the BRT lever 24 and the ZOOM lever 29. Yes. Therefore, the display state of the endoscopic image or the electronic document can be changed by a simple operation by the operator.
  • the endoscopic image and the electronic document are switched and displayed, it is possible to effectively display the endoscopic image and the electronic document by using the display area of the display unit 11 effectively. Since the endoscope image and the electronic document can be easily switched, the operator can easily compare the subject and the electronic document. Further, if a scale (scale), subject design data, and the like are displayed as an electronic document, the inspector can also perform measurement by visually comparing the subject with the scale, design data, and the like.
  • the operation target is also switched, and the displayed one of the endoscopic image and the electronic document automatically becomes the operation target. For this reason, the operator can perform the operation without being aware of the switching of the operation target due to the switching of the display, and the burden on the operator can be reduced.
  • FIG. 9 shows an internal configuration of the endoscope apparatus according to the present embodiment.
  • the image switching unit 18 shown in FIG. 4 is changed to an image superimposing unit 31.
  • the configuration other than the image superimposing unit 31 is the same as the configuration shown in FIG.
  • the configuration shown in FIGS. 1, 2, and 3 is common to this embodiment.
  • the endoscopic image and the electronic document are displayed simultaneously and superimposed.
  • the image superimposing unit 31 superimposes the endoscopic image output from the frame memory 14 and the electronic document output from the frame memory 16 to generate a superimposed image, and outputs the superimposed image to the OSD superimposing unit 19.
  • the image superimposing unit 31 calculates the pixel value of the superimposed image using the pixel value of the endoscopic image and the pixel value of the electronic document for the same pixel.
  • the CPU 15 sets weighting coefficients for the pixel values of the endoscopic image and the pixel values of the electronic document. This weighting coefficient is a coefficient that determines the respective densities of the endoscopic image and the electronic document. By changing the weighting coefficient, one of the endoscopic image and the electronic document can be displayed lightly and the other can be displayed darkly, or the endoscopic image and the electronic document can be displayed at the same density.
  • the operator can set the weighting coefficient by operating the operation unit 5.
  • a function for setting a weighting coefficient is assigned to the BRT lever 24. Similar to the first embodiment, the BRT lever 24 is assigned a function for adjusting the brightness of the endoscopic image as a function that can be used when the endoscopic image is displayed. The BRT lever 24 is assigned a function for setting the weighting coefficient as a function usable when an electronic document is displayed.
  • the CPU 15 sets a weighting coefficient corresponding to the state of the BRT lever 24 in the image superimposing unit 31. More specifically, when the operator moves the BRT lever 24 in the first direction, the weighting coefficient changes in a direction in which the weighting coefficient of the endoscope image increases and the weighting coefficient of the electronic document decreases. When the operator moves the BRT lever 24 in the second direction, the weighting coefficient changes in a direction in which the weighting coefficient of the endoscopic image decreases and the weighting coefficient of the electronic document increases.
  • the endoscopic image and the electronic document are displayed on the display unit 11 at the same time, but at the same time, an operation related to only one of the endoscopic image and the electronic document can be performed.
  • the display unit 11 displays a mark indicating whether an operation regarding an endoscopic image or an electronic document is possible.
  • FIG. 10 and 11 show screens of the display unit 11 when an endoscopic image and an electronic document are displayed.
  • the endoscope image and the electronic document are displayed in an overlapping manner, and a mark 120 indicating that an operation related to the endoscope image is possible is displayed.
  • FIG. 11 the endoscope image and the electronic document are displayed so as to overlap each other, and a mark 125 indicating that an operation related to the electronic document is possible is displayed.
  • the CPU 15 writes the data of the mark 120 or mark 125 into the OSD buffer 17.
  • the OSD superimposing unit 19 superimposes the data of the mark 120 or the mark 125 on the superimposed image output from the image superimposing unit 31.
  • the mark 120 is displayed as shown in FIG. 10
  • the mark 125 is displayed as shown in FIG.
  • a function for switching an operation target between an endoscopic image and an electronic document is assigned to the VIEW button 28.
  • the CPU 15 changes the setting of the operation target from the endoscopic image electronically. Change to a document. Further, the CPU 15 writes the mark data indicating that the operation regarding the electronic document is possible in the OSD buffer 17.
  • the OSD superimposer 19 superimposes this data on the superimposed image output from the image superimposer 31.
  • the CPU 15 sets the operation target from the electronic document to the endoscope. Change to an image.
  • the CPU 15 writes mark data indicating that an operation related to the endoscopic image is possible in the OSD buffer 17.
  • the OSD superimposer 19 superimposes this data on the superimposed image output from the image superimposer 31.
  • a mark indicating whether an operation for an endoscopic image or an electronic document is possible is displayed on the display unit 11, but which operation for an endoscopic image or an electronic document is possible. May be displayed on the display unit 11.
  • the endoscope image and the electronic document are displayed in a superimposed manner at the same time, the operator can easily compare the subject and the electronic document. If a scale (scale), subject design data, and the like are displayed as an electronic document, the inspector can also perform measurement by visually comparing the subject with the scale, design data, and the like.
  • FIG. 12 shows an internal configuration of the endoscope apparatus according to the present embodiment.
  • the image superimposer 31 shown in FIG. The configuration other than the image synthesizer 32 is the same as the configuration shown in FIG.
  • the configurations shown in FIGS. 1, 2, and 3 are common to this embodiment.
  • the endoscopic image and the electronic document are displayed simultaneously and side by side.
  • the image synthesizer 32 generates a composite image by arranging the endoscopic image output from the frame memory 14 and the electronic document output from the frame memory 16, and outputs the composite image to the OSD superimposer 19.
  • the endoscopic image and the electronic document are displayed on the display unit 11 at the same time, but at the same time, an operation related to only one of the endoscopic image and the electronic document can be performed.
  • the display unit 11 displays a mark indicating whether an operation regarding an endoscopic image or an electronic document is possible.
  • FIG. 13 and 14 show screens of the display unit 11 when an endoscopic image and an electronic document are displayed.
  • the endoscope image 130 and the electronic document 135 are displayed in an overlapping manner, and a mark 140 indicating that an operation related to the endoscope image 130 is possible is displayed.
  • the endoscope image 130 and the electronic document 135 are displayed so as to overlap each other, and a mark 145 indicating that an operation relating to the electronic document 135 is possible is displayed.
  • the operation when displaying the marks 140 and 145 is the same as the operation described in the second embodiment.
  • a function for switching an operation target between an endoscopic image and an electronic document is assigned to the VIEW button 28.
  • the method of switching the operation target by the operator operating the VIEW button 28 is the same as the method described in the second embodiment. That is, when a mark indicating that an operation related to an endoscope image is possible is displayed in the display switching mode, when the operator operates the VIEW button 28, the setting of the operation target is changed from the endoscope image to the electronic document. Changed to In addition, when a mark indicating that an operation relating to an electronic document is possible is displayed in the display switching mode, when the operator operates the VIEW button 28, the setting of the operation target is changed from the electronic document to the endoscopic image. Is done.
  • the BRT lever 24 is assigned a function for switching between displaying the endoscopic image and the electronic document on the left and right.
  • the CPU 15 controls the image synthesizer 32 so that the endoscope images are arranged on the left side and the electronic documents are arranged on the right side. For this reason, the endoscope image is displayed on the left side and the electronic document is displayed on the right side on the display unit 11.
  • the CPU 15 controls the image synthesizer 32 so that the endoscope images are arranged on the right side and the electronic documents are arranged on the left side.
  • the endoscope image is displayed on the right side and the electronic document is displayed on the left side on the display unit 11.
  • the endoscope image and the electronic document are arranged side by side, but the endoscope image and the electronic document may be arranged vertically.
  • a mark indicating whether an operation for an endoscopic image or an electronic document is possible is displayed on the display unit 11, but which operation for an endoscopic image or an electronic document is possible. May be displayed on the display unit 11. Further, by displaying an edge around the endoscopic image or the electronic document, the operator may be notified whether the operation regarding the endoscopic image or the electronic document is possible. For example, an edge may be displayed around the endoscope image when an operation related to the endoscopic image is possible, and an edge may be displayed around the electronic document when an operation related to the electronic document is possible.
  • the endoscope image and the electronic document are displayed side by side at the same time, the operator can easily compare the subject and the electronic document. If a scale (scale), subject design data, and the like are displayed as an electronic document, the inspector can also perform measurement by visually comparing the subject with the scale, design data, and the like.
  • the operability of the endoscope apparatus can be improved.

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Abstract

This endoscope device has: an imaging unit that images a subject and that generates an image of the subject; and a display unit that simultaneously displays the image of the subject and one or a plurality of pages of electronic documentation containing data that does not degrade in quality when enlarged or shrunk.

Description

内視鏡装置Endoscope device
　本発明は、被写体（被検体、検査対象物、試験体を含む）の観察に用いる内視鏡装置に関する。 The present invention relates to an endoscope apparatus used for observation of a subject (including a subject, a test object, and a test body).
　内視鏡装置は、主に検査のため、機械、装置、配管等の観察に用いられている。内視鏡装置は、被写体に挿入される細長い挿入部の先端に配置された撮像素子で撮像を行い、被写体の画像を表示部に表示する。被写体中の検査位置や、検査項目、検査方法等の情報を検査者に分かりやすく知らせるために、これらの情報を含む電子書類（例えば、pdfファイル）を被写体の画像と共に表示すると便利である。しかし、内視鏡装置の本体部に搭載されている表示部に電子書類を表示することは行われていなかった。 Endoscope devices are mainly used for observation of machines, devices, piping, etc. for inspection. The endoscope apparatus captures an image with an image sensor arranged at the tip of an elongated insertion portion that is inserted into a subject, and displays an image of the subject on a display portion. It is convenient to display an electronic document (for example, a pdf file) including such information together with the image of the subject in order to inform the inspector in an easy-to-understand manner information such as the inspection position in the subject, the inspection item, and the inspection method. However, the electronic document has not been displayed on the display unit mounted on the main body of the endoscope apparatus.
　特許文献１では、内視鏡を遠隔制御するためのPC（Personal Computer）が、内視鏡で撮像した被写体の画像（以下、内視鏡画像と記載）とトレーニングマニュアルを画面に表示することが記載されている（例えば段落００７０）。特許文献２では、内視鏡を遠隔制御するためのリモートコントローラがサーバと通信を行ってマニュアルをダウンロードし、ダウンロードしたマニュアルを内視鏡画像と共に画面に表示することが記載されている（例えば段落００７８）。 In Patent Literature 1, a PC (Personal Computer) for remotely controlling an endoscope may display an image of a subject imaged by the endoscope (hereinafter referred to as an endoscopic image) and a training manual on a screen. As described (eg paragraph 0070). Patent Document 2 describes that a remote controller for remotely controlling an endoscope downloads a manual by communicating with a server, and displays the downloaded manual on a screen together with an endoscopic image (for example, paragraphs). 0078).
特開２００３－１３５３７１号公報JP 2003-135371 A 特開２００４－１９１９１１号公報JP 2004-191911 A
　特許文献１，２では、内視鏡装置の本体部とは独立して使用可能なPCやリモートコントローラの画面にマニュアルを表示しており、内視鏡装置の本体部が有する表示部に電子書類を表示することは開示されていない。内視鏡装置の持ち運びを容易にするため、内視鏡装置の本体部が有する表示部に電子書類を表示することが望ましい。 In Patent Documents 1 and 2, a manual is displayed on the screen of a PC or remote controller that can be used independently of the main body of the endoscope apparatus, and an electronic document is displayed on the display section of the main body of the endoscope apparatus. The display of is not disclosed. In order to facilitate the carrying of the endoscope apparatus, it is desirable to display an electronic document on the display unit included in the main body of the endoscope apparatus.
　内視鏡装置の本体部に搭載されている表示部は小型化されている。小型の表示部に表示された画像を操作者が確認する際、画像を拡大することが想定される。しかし、ラスタイメージを含むJPEG、GIF、BMP等の画像データによる画像を拡大して表示すると、拡大前よりも画質が劣化し、画像が見にくくなる。 The display unit mounted on the main body of the endoscope apparatus is downsized. When the operator confirms the image displayed on the small display unit, it is assumed that the image is enlarged. However, when an image based on image data such as JPEG, GIF, or BMP including a raster image is enlarged and displayed, the image quality is deteriorated and the image is difficult to see than before enlargement.
　上記の点に鑑み、本発明は、電子書類を表示することができ、電子書類の視認性の低下を低減することができる内視鏡装置を提供することを目的とする。 In view of the above points, an object of the present invention is to provide an endoscope apparatus that can display an electronic document and can reduce a decrease in the visibility of the electronic document.
　本発明は、被写体を撮像し、前記被写体の画像を生成する撮像部と、前記被写体の画像と、拡大または縮小の際に品質が劣化しないデータを含み、１または複数のページからなる電子書類とを同時に表示する表示部と、を有する内視鏡装置である。 The present invention provides an imaging unit that captures an image of an object and generates an image of the object, an image of the object, and an electronic document including one or a plurality of pages including data that does not deteriorate in quality when enlarged or reduced. An endoscopic device having a display unit that simultaneously displays
　本発明の内視鏡装置において、前記電子書類は、前記拡大または縮小の際に品質が劣化しないデータであるベクタイメージを含む。 In the endoscope apparatus of the present invention, the electronic document includes a vector image that is data whose quality does not deteriorate during the enlargement or reduction.
　本発明の内視鏡装置において、前記表示部は、前記被写体の画像および前記電子書類を重ねて表示する。 In the endoscope apparatus according to the present invention, the display unit displays the image of the subject and the electronic document in an overlapping manner.
　本発明の内視鏡装置において、前記表示部は、前記被写体の画像および前記電子書類を並べて表示する。 In the endoscope apparatus according to the present invention, the display unit displays the image of the subject and the electronic document side by side.
　本発明の内視鏡装置において、前記制御部は、前記操作部の操作に対応して、前記表示部に表示される前記被写体の画像および前記電子書類のうちの一方に対して、前記操作部の操作と対応付けられた表示制御を行い、前記操作部の操作に対応して、表示制御の対象を前記被写体の画像および前記電子書類の間で切り替える。 In the endoscope apparatus according to the aspect of the invention, the control unit may correspond to the operation unit with respect to one of the subject image displayed on the display unit and the electronic document in response to the operation of the operation unit. The display control associated with the operation is performed, and the display control target is switched between the image of the subject and the electronic document in response to the operation of the operation unit.
　本発明の内視鏡装置において、操作用の部材を有する操作部と、前記表示部に表示される前記被写体の画像および前記電子書類に対して、前記操作部の操作と対応付けられた表示制御を行う制御部と、を有し、前記表示部はさらに、表示制御の対象を示す情報を表示し、前記制御部はさらに、前記操作部の操作に対応して、前記表示部に表示される前記情報が前記被写体の画像および前記電子書類のうちの一方を示すように前記情報の表示制御を行い、前記情報が前記被写体の画像を示す場合、前記表示部に表示されている前記被写体の画像に対して、前記操作部の操作と対応付けられた表示制御を行い、前記情報が前記電子書類を示す場合、前記表示部に表示されている前記電子書類に対して、前記操作部の操作と対応付けられた表示制御を行う。 In the endoscope apparatus of the present invention, display control associated with an operation of the operation unit with respect to an operation unit having an operation member, the image of the subject displayed on the display unit, and the electronic document A control unit that performs display, the display unit further displays information indicating a target of display control, and the control unit is further displayed on the display unit in response to an operation of the operation unit When the information is controlled so that the information indicates one of the subject image and the electronic document, and the information indicates the subject image, the subject image displayed on the display unit If the display control associated with the operation of the operation unit is performed and the information indicates the electronic document, the operation of the operation unit is performed on the electronic document displayed on the display unit. Associated display system It is carried out.
　本発明によれば、電子書類を表示することができ、電子書類の視認性の低下を低減することができる。 According to the present invention, an electronic document can be displayed, and a reduction in visibility of the electronic document can be reduced.
図１は、本発明の第１の実施形態による内視鏡装置の構成図である。FIG. 1 is a configuration diagram of an endoscope apparatus according to a first embodiment of the present invention. 図２は、本発明の第１の実施形態による内視鏡装置が有する操作部の構成図である。FIG. 2 is a configuration diagram of an operation unit included in the endoscope apparatus according to the first embodiment of the present invention. 図３は、本発明の第１の実施形態による内視鏡装置が有する操作部の構成図である。FIG. 3 is a configuration diagram of an operation unit included in the endoscope apparatus according to the first embodiment of the present invention. 図４は、本発明の第１の実施形態による内視鏡装置の内部の構成を示すブロック図である。FIG. 4 is a block diagram showing an internal configuration of the endoscope apparatus according to the first embodiment of the present invention. 図５は、本発明の第１の実施形態における内視鏡画像を表示した状態を示す図である。FIG. 5 is a diagram illustrating a state in which an endoscopic image is displayed according to the first embodiment of the present invention. 図６は、本発明の第１の実施形態における電子書類を表示した状態を示す図である。FIG. 6 is a view showing a state in which an electronic document is displayed according to the first embodiment of the present invention. 図７は、本発明の第１の実施形態において、電子書類を表示するときの処理の手順を示すフローチャートである。FIG. 7 is a flowchart showing a processing procedure when an electronic document is displayed in the first embodiment of the present invention. 図８は、本発明の第１の実施形態において、電子書類を表示するときの処理の手順を示すフローチャートである。FIG. 8 is a flowchart showing a processing procedure when an electronic document is displayed in the first embodiment of the present invention. 図９は、本発明の第２の実施形態による内視鏡装置の内部の構成を示すブロック図である。FIG. 9 is a block diagram showing an internal configuration of the endoscope apparatus according to the second embodiment of the present invention. 図１０は、本発明の第２の実施形態における内視鏡画像と電子書類を表示した状態を示す図である。FIG. 10 is a diagram showing a state in which an endoscopic image and an electronic document are displayed according to the second embodiment of the present invention. 図１１は、本発明の第２の実施形態における内視鏡画像と電子書類を表示した状態を示す図である。FIG. 11 is a diagram showing a state in which an endoscopic image and an electronic document are displayed in the second embodiment of the present invention. 図１２は、本発明の第３の実施形態による内視鏡装置の内部の構成を示すブロック図である。FIG. 12 is a block diagram showing an internal configuration of an endoscope apparatus according to the third embodiment of the present invention. 図１３は、本発明の第３の実施形態における内視鏡画像と電子書類を表示した状態を示す図である。FIG. 13 is a diagram showing a state in which an endoscopic image and an electronic document are displayed according to the third embodiment of the present invention. 図１４は、本発明の第３の実施形態における内視鏡画像と電子書類を表示した状態を示す図である。FIG. 14 is a diagram showing a state in which an endoscopic image and an electronic document are displayed according to the third embodiment of the present invention. 図１５は、画像データを表示するときの処理の手順を示すフローチャートである。FIG. 15 is a flowchart illustrating a processing procedure when image data is displayed. 図１６は、画像データを表示するときの処理の手順を示すフローチャートである。FIG. 16 is a flowchart showing a processing procedure when image data is displayed.
　以下、図面を参照し、本発明の実施形態を説明する。本発明の各実施形態において、電子書類とは、文字、図、写真、またはそれらの組み合わせで構成されたファイルであって、１ページまたは複数のページからなるファイル（例えばpdfファイル）を言う。被写体の設計図面、検査マニュアル、内視鏡装置の取り扱い説明書などが電子書類の具体的な例である。jpgデータ等の画像データの品質（画質）は拡大・縮小の際に劣化するが、電子書類の品質（画質）は拡大・縮小の際に劣化しない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each embodiment of the present invention, an electronic document is a file composed of characters, figures, photographs, or a combination thereof, and refers to a file consisting of one page or a plurality of pages (for example, a pdf file). Specific examples of electronic documents include a design drawing of an object, an inspection manual, and an instruction manual for an endoscope apparatus. The quality (image quality) of image data such as jpg data deteriorates during enlargement / reduction, but the quality (image quality) of an electronic document does not deteriorate during enlargement / reduction.
　（第１の実施形態）
　まず、本発明の第１の実施形態を説明する。図１は、本実施形態による内視鏡装置の構成を示している。 (First embodiment)
First, a first embodiment of the present invention will be described. FIG. 1 shows the configuration of the endoscope apparatus according to the present embodiment.
　本体部１は、被写体の画像である内視鏡画像を処理する処理回路等を有する。本体部１の前面には、LCD（Liquid Crystal Display）で構成された表示部１１が設けられている。表示部１１を有機EL等の他の表示デバイスで構成することも可能である。被写体の画像である内視鏡画像と、電子書類とが表示部１１に表示される。表示部１１の下には電源ボタン２１とLIGHTボタン２２が設けられている。電源ボタン２１、LIGHTボタン２２に割り当てられた機能については後述する。 The main body 1 has a processing circuit for processing an endoscopic image that is an image of a subject. On the front surface of the main body 1, a display unit 11 composed of an LCD (Liquid Crystal Display) is provided. It is also possible to configure the display unit 11 with another display device such as an organic EL. An endoscopic image that is an image of a subject and an electronic document are displayed on the display unit 11. A power button 21 and a LIGHT button 22 are provided below the display unit 11. Functions assigned to the power button 21 and the LIGHT button 22 will be described later.
　ユニバーサルケーブル６を介して操作部５が接続され、操作部５に挿入部２が接続されている。操作部５は、内視鏡装置の制御や、内視鏡画像および電子書類の表示制御を行うための操作用の部材を有する。挿入部２は、その先端にある先端部３を機械、装置、配管等の内部に挿入し、観察を行う位置まで導くため、細長く、かつ柔軟性を有する部材で構成されている。先端部３はLED（Light Emitting Diode）や撮像素子を有する。先端部３に接続された湾曲部４は湾曲装置を有する。湾曲装置が湾曲することによって、先端部３の位置が変化し、撮像方向が変化する。 The operation unit 5 is connected via the universal cable 6, and the insertion unit 2 is connected to the operation unit 5. The operation unit 5 includes an operation member for controlling the endoscope apparatus and controlling display of an endoscopic image and an electronic document. The insertion portion 2 is formed of an elongated and flexible member so that the distal end portion 3 at the distal end is inserted into a machine, apparatus, piping or the like and guided to a position for observation. The tip 3 has an LED (Light Emitting Diode) and an image sensor. The bending portion 4 connected to the distal end portion 3 has a bending device. When the bending device is bent, the position of the distal end portion 3 changes and the imaging direction changes.
　図２および図３は操作部５の構成を示している。操作部５は、各種の操作用の部材であるジョイスティック２３、BRTレバー２４、MENU/EXITボタン２５、　LIVEボタン２６、ジョイスティック２７、VIEWボタン２８、ZOOMレバー２９、FRZ/RECボタン３０を有する。ジョイスティック２３は、湾曲部４の湾曲動作を制御するための部材である。操作部５に設けられた他の部材に割り当てられた機能については後述する。 2 and 3 show the configuration of the operation unit 5. The operation unit 5 includes a joystick 23, a BRT lever 24, a MENU / EXIT button 25, a LIVE button 26, a joystick 27, a VIEW button 28, a ZOOM lever 29, and an FRZ / REC button 30 which are various operation members. The joystick 23 is a member for controlling the bending operation of the bending portion 4. Functions assigned to other members provided in the operation unit 5 will be described later.
　図４は内視鏡装置の内部の構成を示している。撮像素子１２は先端部３の内部にある。A/Dコンバータ１３、フレームメモリ１４、CPU（Central Processing Unit）１５、フレームメモリ１６、OSDバッファ１７、画像切り替え器１８、及びOSD重畳器１９は本体部１の筐体内にある。表示部１１は本体部１の表面にある。記録媒体７は、本体部１に対して着脱可能な媒体である。電子書類は記録媒体７に格納されている。 FIG. 4 shows an internal configuration of the endoscope apparatus. The image sensor 12 is inside the tip 3. An A / D converter 13, a frame memory 14, a CPU (Central Processing Unit) 15, a frame memory 16, an OSD buffer 17, an image switching device 18, and an OSD superimposing device 19 are in the housing of the main body 1. The display unit 11 is on the surface of the main body unit 1. The recording medium 7 is a medium that can be attached to and detached from the main body 1. The electronic document is stored in the recording medium 7.
　撮像素子１２はCCD（Charge Coupled Device）で構成されており、被写体を撮像して撮像信号を生成する。撮像素子１２をCMOS（Complementary Metal Oxide Semiconductor）センサ等で構成することも可能である。A/Dコンバータ１３は、撮像素子１２から出力されたアナログの撮像信号を、内視鏡画像を構成するデジタルの画像信号に変換する。撮像素子１２およびA/Dコンバータ１３は、本発明の一態様に係る撮像部を構成する。フレームメモリ１４は、A/Dコンバータ１３から出力された画像信号を記憶する。 The image sensor 12 is composed of a CCD (Charge-Coupled Device), and images an object to generate an image signal. It is also possible to configure the image sensor 12 with a CMOS (Complementary Metal Metal Oxide Semiconductor) sensor or the like. The A / D converter 13 converts the analog imaging signal output from the imaging device 12 into a digital image signal that forms an endoscopic image. The imaging element 12 and the A / D converter 13 constitute an imaging unit according to one aspect of the present invention. The frame memory 14 stores the image signal output from the A / D converter 13.
　CPU１５は、内視鏡装置の制御内容が記述されたプログラムを実行することによって、内視鏡装置の各部を制御する。CPU１５は、本発明の一態様に係る制御部を構成する。フレームメモリ１６は、記録媒体７に記録されている電子書類を表示する際に電子書類を記憶するメモリである。記録媒体７に記録されている電子書類を表示する場合、CPU１５は記録媒体７から電子書類を読み出してフレームメモリ１６に書き込む。OSDバッファ１７は、OSD（On Screen Display）情報として表示する文字や記号等のデータを記憶するバッファである。 The CPU 15 controls each part of the endoscope apparatus by executing a program in which the control contents of the endoscope apparatus are described. The CPU 15 constitutes a control unit according to an aspect of the present invention. The frame memory 16 is a memory for storing an electronic document when the electronic document recorded on the recording medium 7 is displayed. When displaying the electronic document recorded on the recording medium 7, the CPU 15 reads the electronic document from the recording medium 7 and writes it in the frame memory 16. The OSD buffer 17 is a buffer for storing data such as characters and symbols to be displayed as OSD (On Screen Display) information.
　フレームメモリ１４から出力された画像信号すなわち内視鏡画像は画像切り替え器１８の第１の入力端子に入力される。電子書類用のフレームメモリ１６から出力された電子書類は画像切り替え器１８の第２の入力端子に入力される。画像切り替え器１８は、第１の入力端子に入力される内視鏡画像と、第２の入力端子に入力される電子書類とのうちの一方をOSD重畳器１９へ出力する。画像切り替え器１８が出力する内視鏡画像と電子書類の切り替えは、CPU１５によって制御される。 The image signal output from the frame memory 14, that is, the endoscopic image, is input to the first input terminal of the image switcher 18. The electronic document output from the electronic document frame memory 16 is input to the second input terminal of the image switcher 18. The image switching unit 18 outputs one of an endoscopic image input to the first input terminal and an electronic document input to the second input terminal to the OSD superimposing unit 19. Switching between the endoscopic image and the electronic document output from the image switcher 18 is controlled by the CPU 15.
　OSD重畳器１９は、画像切り替え器１８から出力された内視鏡画像または電子書類に対して、OSDバッファ１７に格納されているデータを重畳する。これによって、メニュー等が内視鏡画像または電子書類に重畳される。表示部１１は、OSD重畳器１９から出力された内視鏡画像または電子書類を表示する。 The OSD superimposing unit 19 superimposes the data stored in the OSD buffer 17 on the endoscopic image or electronic document output from the image switching unit 18. As a result, the menu or the like is superimposed on the endoscopic image or electronic document. The display unit 11 displays an endoscopic image or an electronic document output from the OSD superimposer 19.
　本実施形態では、同一の時点では内視鏡画像と電子書類のうちの一方が表示部１１に表示される。図５は、内視鏡画像が表示されているときの表示部１１の画面を示している。図５では、被写体１００を含む内視鏡画像が表示されている。図６は、電子書類が表示されているときの表示部１１の画面を示している。図６では、被写体の図１０５と、被写体の名称を示す文字１１０とが表示されている。操作者は、操作部５を操作することによって、内視鏡画像と被写体画像の表示を切り替えることができる。すなわち、操作者は、図５に示す状態と、図６に示す状態とを切り替えることができる。 In this embodiment, one of the endoscopic image and the electronic document is displayed on the display unit 11 at the same time. FIG. 5 shows a screen of the display unit 11 when an endoscopic image is displayed. In FIG. 5, an endoscopic image including the subject 100 is displayed. FIG. 6 shows a screen of the display unit 11 when an electronic document is displayed. In FIG. 6, FIG. 105 of the subject and a character 110 indicating the name of the subject are displayed. The operator can switch the display of the endoscopic image and the subject image by operating the operation unit 5. That is, the operator can switch between the state shown in FIG. 5 and the state shown in FIG.
　図４には示していないが、湾曲装置やLED等も内視鏡装置に含まれる。 Although not shown in FIG. 4, a bending device, an LED, and the like are also included in the endoscope device.
　次に、内視鏡画像を表示するときの内視鏡装置の動作と、電子書類を表示するときの内視鏡装置の動作とについて説明する。内視鏡画像を表示する場合、CPU１５は、フレームメモリ１４の出力を選択するように画像切り替え器１８を制御する。また、メニュー等を内視鏡画像に重畳して表示する場合、CPU１５はメニュー等のデータをOSDバッファ１７に書き込む。OSD重畳器１９は、画像切り替え器１８から出力された内視鏡画像に対して、必要に応じてメニュー等のデータを重畳する。表示部１１は、OSD重畳器１９から出力された内視鏡画像を表示する。 Next, the operation of the endoscope apparatus when displaying an endoscope image and the operation of the endoscope apparatus when displaying an electronic document will be described. When displaying an endoscopic image, the CPU 15 controls the image switch 18 so as to select the output of the frame memory 14. When a menu or the like is displayed superimposed on the endoscopic image, the CPU 15 writes data such as the menu into the OSD buffer 17. The OSD superimposing device 19 superimposes data such as a menu on the endoscopic image output from the image switching device 18 as necessary. The display unit 11 displays the endoscopic image output from the OSD superimposer 19.
　撮像素子１２はフレーム単位で連続的に被写体を撮像する。１フレームの内視鏡画像が生成されると、その内視鏡画像によって、フレームメモリ１４に格納されている１つ前のフレームの内視鏡画像が上書きされる。また、各フレームの内視鏡画像に対して、フレームメモリ１４への書き込みから表示部１１における表示までの動作が順次行われる。このため、表示部１１には、各フレームの内視鏡画像からなる動画像が表示される。 The image sensor 12 continuously captures the subject in units of frames. When an endoscopic image of one frame is generated, the endoscopic image of the previous frame stored in the frame memory 14 is overwritten by the endoscopic image. Further, operations from writing to the frame memory 14 to displaying on the display unit 11 are sequentially performed on the endoscopic images of each frame. For this reason, the display unit 11 displays a moving image including an endoscopic image of each frame.
　本実施形態では、ライブ状態の内視鏡画像を表示するライブモードと、ライブ状態の内視鏡画像と電子書類とを切り替えて表示する切り替え表示モードとが用意されている。ライブモードと切り替え表示モードのいずれにおいても、ライブ状態の内視鏡画像を表示する動作は上記の動作となる。 In the present embodiment, a live mode for displaying a live endoscope image and a switching display mode for switching between a live endoscope image and an electronic document are provided. In both the live mode and the switching display mode, the operation for displaying the endoscope image in the live state is the above-described operation.
　電子書類を表示する場合、CPU１５は、記録媒体７から電子書類を読み出してフレームメモリ１６に書き込む。また、CPU１５は、フレームメモリ１６の出力を選択するように画像切り替え器１８を制御する。また、CPU１５は、電子書類に付属するデータ（電子書類のファイル名、総ページ数、ページ番号等）を記録媒体７から読み出し、OSDバッファ１７に書き込む。画像切り替え器１８は、フレームメモリ１６から出力された電子書類をOSD重畳器１９へ出力する。OSD重畳器１９は、画像切り替え器１８から出力された電子書類に対して、OSDバッファ１７に格納されているデータを重畳する。操作部５の操作により、OSD用の情報を表示するか否かを設定することが可能である。表示部１１は、OSD重畳器１９から出力された電子書類を表示する。 When displaying the electronic document, the CPU 15 reads the electronic document from the recording medium 7 and writes it in the frame memory 16. Further, the CPU 15 controls the image switch 18 so as to select the output of the frame memory 16. Further, the CPU 15 reads data attached to the electronic document (file name of electronic document, total number of pages, page number, etc.) from the recording medium 7 and writes it in the OSD buffer 17. The image switching unit 18 outputs the electronic document output from the frame memory 16 to the OSD superimposing unit 19. The OSD superimposing unit 19 superimposes the data stored in the OSD buffer 17 on the electronic document output from the image switching unit 18. It is possible to set whether or not to display OSD information by operating the operation unit 5. The display unit 11 displays the electronic document output from the OSD superimposer 19.
　内視鏡画像を記録媒体７に記録することや、記録媒体７に記録されている内視鏡画像を表示部１１に表示することも可能である。内視鏡画像を記録するモードでは、操作部５を介して記録の指示が入力されると、CPU１５は、フレームメモリ１４から出力された内視鏡画像を記録媒体７に記録する。また、記録された内視鏡画像を表示するモードでは、操作部５を介して表示の指示が入力されると、CPU１５は、記録媒体７から内視鏡画像を読み出してフレームメモリ１６に書き込む。また、CPU１５は、フレームメモリ１６の出力を選択するように画像切り替え器１８を制御する。 It is also possible to record an endoscopic image on the recording medium 7 and display the endoscopic image recorded on the recording medium 7 on the display unit 11. In the mode for recording an endoscopic image, when a recording instruction is input via the operation unit 5, the CPU 15 records the endoscopic image output from the frame memory 14 on the recording medium 7. In the mode of displaying the recorded endoscopic image, when a display instruction is input via the operation unit 5, the CPU 15 reads the endoscopic image from the recording medium 7 and writes it in the frame memory 16. Further, the CPU 15 controls the image switch 18 so as to select the output of the frame memory 16.
　次に、本体部１に設けられた電源ボタン２１、LIGHTボタン２２に割り当てられた機能、および操作部５に設けられた各部材（ジョイスティック２３を除く）に割り当てられた機能について説明する。表１は、これらの部材に割り当てられた機能を示している。言い換えると、表１は、各部材と、各部材に割り当てられた機能との対応関係を示している。 Next, functions assigned to the power button 21 and the LIGHT button 22 provided in the main unit 1 and functions assigned to each member (excluding the joystick 23) provided in the operation unit 5 will be described. Table 1 shows the functions assigned to these members. In other words, Table 1 shows the correspondence between each member and the function assigned to each member.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
　それぞれの部材には、内視鏡画像が表示されているときに使用可能な機能と、電子書類が表示されているときに使用可能な機能とが割り当てられている。電子書類が表示されているときに使用可能な機能の一部は、内視鏡画像が表示されているときに使用可能な機能と関連した機能となっている。より具体的には、電子書類が表示されているときに使用可能な機能の一部は、内視鏡画像が表示されているときに使用可能な機能から類推できる機能である。あるいは、電子書類が表示されているときに使用可能な機能の一部は、内視鏡画像が表示されているときに使用可能な機能と同一の機能である。 Each member is assigned a function that can be used when an endoscopic image is displayed and a function that can be used when an electronic document is displayed. Some of the functions that can be used when the electronic document is displayed are functions that are related to the functions that can be used when the endoscopic image is displayed. More specifically, some of the functions that can be used when an electronic document is displayed are functions that can be inferred from the functions that can be used when an endoscopic image is displayed. Alternatively, some of the functions that can be used when the electronic document is displayed are the same functions that can be used when the endoscopic image is displayed.
　電源ボタン２１は、押すことによって操作されるボタンである。電源ボタン２１には、電源がOFFとなっているときの機能として、電源をONにする機能が割り当てられている。また、電源ボタン２１には、内視鏡画像が表示されているときに使用可能な機能および電子書類が表示されているときに使用可能な機能として、電源をOFFにする機能が割り当てられている。すなわち、内視鏡画像または電子書類が表示されているときに操作者が電源ボタン２１を操作すると、内視鏡装置の電源がOFFとなる。 The power button 21 is a button operated by pressing. A function to turn on the power is assigned to the power button 21 as a function when the power is off. Further, the power button 21 is assigned a function that can be used when an endoscopic image is displayed and a function that can be used when an electronic document is displayed. . That is, when the operator operates the power button 21 while an endoscopic image or an electronic document is displayed, the power of the endoscope apparatus is turned off.
　LIGHTボタン２２は、押すことによって操作されるボタンである。LIGHTボタン２２には、内視鏡画像が表示されているときに使用可能な機能として、先端部３に内蔵されているLEDのON/OFFを制御する機能が割り当てられている。LIGHTボタン２２には、電子書類が表示されているときに使用可能な機能は割り当てられていない。 The LIGHT button 22 is a button operated by pressing. As a function that can be used when an endoscopic image is displayed, the LIGHT button 22 is assigned a function for controlling ON / OFF of the LED built in the distal end portion 3. The LIGHT button 22 is not assigned a function that can be used when an electronic document is displayed.
　BRTレバー２４は、操作部５の表面に沿った２つの方向に移動することが可能なレバーである。操作者がBRTレバー２４を第１の方向に移動させたときと、BRTレバー２４を第２の方向に移動させたときとでは、CPU１５によって、BRTレバー２４が異なる状態にあると認識される。すなわち、操作者がBRTレバー２４を第１の方向に移動させたとき、BRTレバー２４は第１の状態にあると認識され、操作者がBRTレバー２４を第２の方向に移動させたとき、BRTレバー２４は第２の状態にあると認識される。 The BRT lever 24 is a lever that can move in two directions along the surface of the operation unit 5. The CPU 15 recognizes that the BRT lever 24 is in a different state when the operator moves the BRT lever 24 in the first direction and when the operator moves the BRT lever 24 in the second direction. That is, when the operator moves the BRT lever 24 in the first direction, the BRT lever 24 is recognized to be in the first state, and when the operator moves the BRT lever 24 in the second direction, It is recognized that the BRT lever 24 is in the second state.
　BRTレバー２４には、内視鏡画像が表示されているときに使用可能な機能として、内視鏡画像の明るさを調整する機能が割り当てられている。内視鏡画像が表示されているときに操作者がBRTレバー２４を操作すると、CPU１５は、撮像素子１２における信号の増幅率を制御することによって、内視鏡画像の明るさを調整する。より具体的には、操作者がBRTレバー２４を第１の方向に移動させると、内視鏡画像が明るくなる方向に、内視鏡画像の明るさが変化する。また、操作者がBRTレバー２４を第２の方向に移動させると、内視鏡画像が暗くなる方向に、内視鏡画像の明るさが変化する。 The BRT lever 24 is assigned a function for adjusting the brightness of the endoscopic image as a function that can be used when the endoscopic image is displayed. When the operator operates the BRT lever 24 while the endoscopic image is displayed, the CPU 15 adjusts the brightness of the endoscopic image by controlling the signal amplification factor in the image sensor 12. More specifically, when the operator moves the BRT lever 24 in the first direction, the brightness of the endoscopic image changes in a direction in which the endoscopic image becomes brighter. Further, when the operator moves the BRT lever 24 in the second direction, the brightness of the endoscopic image changes in a direction in which the endoscopic image becomes dark.
　BRTレバー２４には、電子書類が表示されているときに使用可能な機能として、電子書類のページをめくる機能が割り当てられている。電子書類が表示されているときに操作者がBRTレバー２４を操作すると、CPU１５は、表示されている電子書類のページの前または後のページのデータを記録媒体７から読み出し、フレームメモリ１６に書き込む。より具体的には、操作者がBRTレバー２４を第１の方向に移動させると、ページが増加する方向にページが変化する。また、操作者がBRTレバー２４を第２の方向に移動させると、ページが減少する方向にページが変化する。 The BRT lever 24 is assigned a function for turning a page of an electronic document as a function that can be used when the electronic document is displayed. When the operator operates the BRT lever 24 while the electronic document is displayed, the CPU 15 reads the data of the page before or after the displayed page of the electronic document from the recording medium 7 and writes it to the frame memory 16. . More specifically, when the operator moves the BRT lever 24 in the first direction, the page changes in the direction in which the page increases. Further, when the operator moves the BRT lever 24 in the second direction, the page changes in the direction in which the page decreases.
　ZOOMレバー２９は、操作部５の表面に沿った２つの方向に移動することが可能なレバーである。操作者がZOOMレバー２９を第１の方向に移動させたときと、ZOOMレバー２９を第２の方向に移動させたときとでは、CPU１５によって、ZOOMレバー２９が異なる状態にあると認識される。すなわち、操作者がZOOMレバー２９を第１の方向に移動させたとき、ZOOMレバー２９は第１の状態にあると認識され、操作者がZOOMレバー２９を第２の方向に移動させたとき、ZOOMレバー２９は第２の状態にあると認識される。 The ZOOM lever 29 is a lever that can move in two directions along the surface of the operation unit 5. The CPU 15 recognizes that the ZOOM lever 29 is in a different state when the operator moves the ZOOM lever 29 in the first direction and when the operator moves the ZOOM lever 29 in the second direction. That is, when the operator moves the ZOOM lever 29 in the first direction, the ZOOM lever 29 is recognized as being in the first state, and when the operator moves the ZOOM lever 29 in the second direction, It is recognized that the ZOOM lever 29 is in the second state.
　ZOOMレバー２９には、内視鏡画像が表示されているときに使用可能な機能として、内視鏡画像のズームを調整する機能が割り当てられている。内視鏡画像が表示されているときに操作者がZOOMレバー２９を操作すると、CPU１５は、フレームメモリ１４に格納されている内視鏡画像のズーム処理を行う。より具体的には、内視鏡画像が表示されているときに操作者がZOOMレバー２９を第１の方向に移動させると、内視鏡画像が拡大表示される。また、操作者がZOOMレバー２９を第２の方向に移動させると、内視鏡画像が縮小表示される。 The ZOOM lever 29 is assigned a function for adjusting the zoom of the endoscopic image as a function that can be used when the endoscopic image is displayed. When the operator operates the ZOOM lever 29 while the endoscopic image is displayed, the CPU 15 performs zoom processing of the endoscopic image stored in the frame memory 14. More specifically, when the operator moves the ZOOM lever 29 in the first direction while the endoscopic image is displayed, the endoscopic image is enlarged and displayed. When the operator moves the ZOOM lever 29 in the second direction, the endoscopic image is reduced and displayed.
　ZOOMレバー２９には、電子書類が表示されているときに使用可能な機能として、電子書類のズームを調整する機能が割り当てられている。電子書類が表示されているときに操作者がZOOMレバー２９を操作すると、CPU１５は、電子書類のズームを調整する。より具体的には、操作者がZOOMレバー２９を第１の方向に移動させると、電子書類が拡大表示される。また、操作者がZOOMレバー２９を第２の方向に移動させると、電子書類が縮小表示される。上記のように、ZOOMレバー２９には、内視鏡画像と電子書類に対して、同一内容の表示制御であるズーム調整を行う機能が割り当てられている。 ZOOM lever 29 is assigned a function for adjusting the zoom of the electronic document as a function that can be used when the electronic document is displayed. When the operator operates the ZOOM lever 29 while the electronic document is displayed, the CPU 15 adjusts the zoom of the electronic document. More specifically, when the operator moves the ZOOM lever 29 in the first direction, the electronic document is enlarged and displayed. Further, when the operator moves the ZOOM lever 29 in the second direction, the electronic document is reduced and displayed. As described above, the ZOOM lever 29 is assigned a function of performing zoom adjustment, which is display control of the same content, on the endoscopic image and the electronic document.
　MENU/EXITボタン２５は、押すことによって操作されるボタンである。MENU/EXITボタン２５には、内視鏡画像が表示されているときに使用可能な機能として、内視鏡画像に対して各種の設定を行うためのメニューを表示する機能が割り当てられている。内視鏡画像に対する各種の設定には、例えば内視鏡画像を記録する際のファイル名に関する設定等が含まれる。内視鏡画像が表示されているときに操作者がMENU/EXITボタン２５を操作すると、CPU１５はメニュー用のデータをOSDバッファ１７に書き込む。OSD重畳器１９は、画像切り替え器１８から出力された内視鏡画像に対して、OSDバッファ１７に格納されているデータを重畳する。これによって、内視鏡画像と共にメニューが表示される。 The MENU / EXIT button 25 is a button operated by pressing. The MENU / EXIT button 25 is assigned a function for displaying a menu for performing various settings for the endoscopic image as a function that can be used when the endoscopic image is displayed. The various settings for the endoscopic image include, for example, settings related to a file name when recording the endoscopic image. When the operator operates the MENU / EXIT button 25 while the endoscopic image is displayed, the CPU 15 writes menu data in the OSD buffer 17. The OSD superimposing unit 19 superimposes the data stored in the OSD buffer 17 on the endoscopic image output from the image switching unit 18. Thereby, the menu is displayed together with the endoscopic image.
　また、MENU/EXITボタン２５には、電子書類が表示されているときに使用可能な機能として、電子書類に対して各種の調整を行うためのメニューを表示する機能が割り当てられている。電子書類に対する各種の調整には、例えば電子書類のページ送りに関する調整や、電子書類のズーム調整に関する調整等が含まれる。電子書類が表示されているときに操作者がMENU/EXITボタン２５を操作すると、CPU１５はメニュー用のデータをOSDバッファ１７に書き込む。OSD重畳器１９は、画像切り替え器１８から出力された電子書類に対して、OSDバッファ１７に格納されているデータを重畳する。これによって、電子書類と共にメニューが表示される。上記のように、MENU/EXITボタン２５には、内視鏡画像、電子書類のそれぞれに関連するメニューの表示制御を行う機能が割り当てられている。 The MENU / EXIT button 25 is assigned a function for displaying a menu for performing various adjustments on the electronic document as a function that can be used when the electronic document is displayed. Various adjustments to the electronic document include, for example, adjustments related to page feed of the electronic document, adjustments related to zoom adjustment of the electronic document, and the like. When the operator operates the MENU / EXIT button 25 while the electronic document is displayed, the CPU 15 writes menu data in the OSD buffer 17. The OSD superimposing unit 19 superimposes the data stored in the OSD buffer 17 on the electronic document output from the image switching unit 18. As a result, a menu is displayed together with the electronic document. As described above, the MENU / EXIT button 25 is assigned a function for controlling display of menus related to the endoscopic image and the electronic document.
　LIVEボタン２６は、押すことによって操作されるボタンである。LIVEボタン２６には、内視鏡画像が表示されているときに使用可能な機能として、内視鏡画像をライブモードで表示する機能が割り当てられている。内視鏡画像が表示されているときに操作者がLIVEボタン２６を操作すると、ライブモードで内視鏡画像が表示される。 The LIVE button 26 is a button operated by pressing. The LIVE button 26 is assigned a function for displaying an endoscopic image in a live mode as a function that can be used when an endoscopic image is displayed. When the operator operates the LIVE button 26 while the endoscopic image is displayed, the endoscopic image is displayed in the live mode.
　また、LIVEボタン２６には、電子書類が表示されているときに使用可能な機能として、内視鏡画像をライブモードで表示する機能が割り当てられている。電子書類が表示されているときのモードは、前述した切り替え表示モードである。電子書類が表示されているときに操作者がLIVEボタン２６を操作すると、内視鏡装置のモードが切り替え表示モードからライブモードに移行し、ライブモードで内視鏡画像が表示される。上記のようにLIVEボタン２６には、内視鏡画像をライブモードで表示するという機能が割り当てられている。 Also, the LIVE button 26 is assigned a function for displaying an endoscopic image in a live mode as a function that can be used when an electronic document is displayed. The mode when the electronic document is displayed is the switching display mode described above. When the operator operates the LIVE button 26 while the electronic document is displayed, the mode of the endoscope apparatus is switched from the switching display mode to the live mode, and the endoscopic image is displayed in the live mode. As described above, the LIVE button 26 is assigned a function of displaying an endoscopic image in the live mode.
　ジョイスティック２７は、任意の方向に倒すことによって操作されるレバーである。ジョイスティック２７には、内視鏡画像が表示されているときに使用可能な機能として、内視鏡画像に対して各種の設定を行うためのメニューの項目を選択する機能が割り当てられている。内視鏡画像が表示されているときに操作者がMENU/EXITボタン２５を操作すると、メニューが表示される。さらに、このメニューが表示されている状態で操作者がジョイスティック２７を操作すると、メニューの項目が選択可能となる。ライブモードから、内視鏡画像と電子書類を切り替えて表示する切り替え表示モードへのモードの変更は、メニュー項目の選択により行うことが可能である。 The joystick 27 is a lever that is operated by tilting it in an arbitrary direction. The joystick 27 is assigned a function for selecting menu items for performing various settings for the endoscopic image as a function that can be used when the endoscopic image is displayed. When the operator operates the MENU / EXIT button 25 while the endoscopic image is displayed, a menu is displayed. Further, when the operator operates the joystick 27 while the menu is displayed, menu items can be selected. The mode change from the live mode to the switching display mode in which the endoscopic image and the electronic document are switched and displayed can be performed by selecting a menu item.
　また、ジョイスティック２７には、電子書類が表示されているときに使用可能な機能として、電子書類の表示位置を変更する機能が割り当てられている。電子書類のページの一部分が表示されているときに操作者がジョイスティック２７を操作すると、ページ内で電子書類をスクロールして、電子書類の表示位置を変更することが可能となる。スクロールを継続して電子書類のページをめくることも可能である。 The joystick 27 is assigned a function for changing the display position of the electronic document as a function that can be used when the electronic document is displayed. When the operator operates the joystick 27 while a part of the page of the electronic document is displayed, the display position of the electronic document can be changed by scrolling the electronic document within the page. It is also possible to continue scrolling and turn the pages of the electronic document.
　また、ジョイスティック２７には、電子書類が表示されているときに使用可能な機能として、電子書類に対して各種の調整を行うためのメニューの項目を選択する機能も割り当てられている。電子書類が表示されているときに操作者がMENU/EXITボタン２５を操作すると、メニューが表示される。さらに、このメニューが表示されている状態で操作者がジョイスティック２７を操作すると、メニューの項目が選択可能となる。上記のように、ジョイスティック２７には、内視鏡画像、電子書類のそれぞれに関連するメニューの項目の選択制御を行う機能が割り当てられている。 The joystick 27 is also assigned a function for selecting menu items for performing various adjustments to the electronic document as a function that can be used when the electronic document is displayed. When the operator operates the MENU / EXIT button 25 while the electronic document is displayed, a menu is displayed. Further, when the operator operates the joystick 27 while the menu is displayed, menu items can be selected. As described above, the joystick 27 is assigned a function of performing selection control of menu items related to the endoscopic image and the electronic document.
　VIEWボタン２８は、押すことによって操作されるボタンである。VIEWボタン２８には、ライブモードで内視鏡画像が表示されているときに使用可能な機能として、記録媒体７に記録されている内視鏡画像を表示する機能が割り当てられている。ライブモードで内視鏡画像が表示されているときに操作者がVIEWボタン２８を操作すると、記録媒体７に記録されている内視鏡画像を表示することが可能となる。 The VIEW button 28 is a button operated by pressing. As a function that can be used when an endoscopic image is displayed in the live mode, a function for displaying the endoscopic image recorded on the recording medium 7 is assigned to the VIEW button 28. When the operator operates the VIEW button 28 while the endoscopic image is displayed in the live mode, the endoscopic image recorded on the recording medium 7 can be displayed.
　また、VIEWボタン２８には、表示切り替えモードで内視鏡画像が表示されているときに使用可能な機能として、内視鏡画像と電子書類の表示を切り替える機能が割り当てられている。表示切り替えモードで内視鏡画像が表示されているときに操作者がVIEWボタン２８を操作すると、CPU１５は、記録媒体７から電子書類を読み出してフレームメモリ１６に書き込み、フレームメモリ１６の出力を選択するように画像切り替え器１８を制御する。また、CPU１５は、電子書類に付属するデータ（電子書類のファイル名、総ページ数、ページ番号等）を記録媒体７から読み出し、OSDバッファ１７に書き込む。OSD重畳器１９は、画像切り替え器１８から出力された内視鏡画像に対して、必要に応じてメニュー等のデータを重畳する。これによって、内視鏡画像が非表示となり、電子書類が表示部１１に表示される。 Also, the VIEW button 28 is assigned a function for switching between displaying an endoscopic image and an electronic document as a function that can be used when an endoscopic image is displayed in the display switching mode. When the operator operates the VIEW button 28 while the endoscopic image is displayed in the display switching mode, the CPU 15 reads the electronic document from the recording medium 7 and writes it to the frame memory 16 and selects the output of the frame memory 16. The image switcher 18 is controlled to do so. Further, the CPU 15 reads data attached to the electronic document (file name of electronic document, total number of pages, page number, etc.) from the recording medium 7 and writes it in the OSD buffer 17. The OSD superimposing device 19 superimposes data such as a menu on the endoscopic image output from the image switching device 18 as necessary. As a result, the endoscopic image is hidden and the electronic document is displayed on the display unit 11.
　また、VIEWボタン２８には、表示切り替えモードで電子書類が表示されているときに使用可能な機能として、内視鏡画像と電子書類の表示を切り替える機能が割り当てられている。表示切り替えモードで電子書類が表示されているときに操作者がVIEWボタン２８を操作すると、CPU１５は、フレームメモリ１４の出力を選択するように画像切り替え器１８を制御する。また、メニュー等を内視鏡画像に重畳して表示する場合、CPU１５はメニュー等のデータをOSDバッファ１７に書き込む。OSD重畳器１９は、画像切り替え器１８から出力された内視鏡画像に対して、必要に応じてメニュー等のデータを重畳する。これによって、電子書類が非表示となり、内視鏡画像が表示部１１に表示される。上記のように、VIEWボタン２８には、内視鏡画像と電子書類に対して、内視鏡画像と電子書類の表示を切り替えるという同一内容の表示制御の機能が割り当てられている。 Also, the VIEW button 28 is assigned a function for switching the display of the endoscopic image and the electronic document as a function that can be used when the electronic document is displayed in the display switching mode. When the operator operates the VIEW button 28 while the electronic document is displayed in the display switching mode, the CPU 15 controls the image switch 18 so as to select the output of the frame memory 14. When a menu or the like is displayed superimposed on the endoscopic image, the CPU 15 writes data such as the menu into the OSD buffer 17. The OSD superimposing device 19 superimposes data such as a menu on the endoscopic image output from the image switching device 18 as necessary. As a result, the electronic document is hidden and the endoscopic image is displayed on the display unit 11. As described above, the VIEW button 28 is assigned a display control function having the same content for switching the display of the endoscopic image and the electronic document with respect to the endoscopic image and the electronic document.
　FRZ/RECボタン３０は、押すことによって操作されるボタンである。FRZ/RECボタン３０には、内視鏡画像が表示されているときに使用可能な機能として、表示部１１に表示されている内視鏡画像を停止し（フリーズ）、停止した内視鏡画像を記録する機能が割り当てられている。内視鏡画像が表示されているときに操作者がFRZ/RECボタン３０を操作すると、CPU１５は、フレームメモリ１４に対する内視鏡画像の書き込みを停止する。以後、各フレームで同一の内視鏡画像がフレームメモリ１４から読み出されて画像切り替え器１８へ出力される。このため、表示部１１にはフレーム間で同一の内視鏡画像が表示される。表示部１１に表示されている内視鏡画像が停止された後、操作者がFRZ/RECボタン３０を操作すると、CPU１５は、フレームメモリ１４から出力された内視鏡画像を記録媒体７に記録する。FRZ/RECボタン３０には、電子書類が表示されているときに使用可能な機能は割り当てられていない。 FRZ / REC button 30 is a button operated by pressing. The FRZ / REC button 30 stops (freezes) the endoscopic image displayed on the display unit 11 as a function that can be used when the endoscopic image is displayed. The function to record is assigned. When the operator operates the FRZ / REC button 30 while the endoscopic image is displayed, the CPU 15 stops writing the endoscopic image to the frame memory 14. Thereafter, the same endoscopic image in each frame is read from the frame memory 14 and output to the image switcher 18. For this reason, the same endoscopic image is displayed on the display unit 11 between frames. When the operator operates the FRZ / REC button 30 after the endoscopic image displayed on the display unit 11 is stopped, the CPU 15 records the endoscopic image output from the frame memory 14 in the recording medium 7. To do. The FRZ / REC button 30 is not assigned a function that can be used when an electronic document is displayed.
　上記のように、本体部１に設けられた電源ボタン２１、LIGHTボタン２２、および操作部５に設けられた各部材の大部分には、内視鏡画像が表示されているときに使用可能な機能と、電子書類が表示されているときに使用可能な機能とが割り当てられている。また、電子書類が表示されているときに使用可能な機能の大部分は、内視鏡画像が表示されているときに使用可能な機能に関連した機能である。このため、内視鏡画像の操作に慣れた操作者にとって、電子書類の操作が容易となることが期待できる。 As described above, most of the members provided on the power button 21, the LIGHT button 22, and the operation unit 5 provided on the main body 1 can be used when an endoscopic image is displayed. Functions and functions that can be used when an electronic document is displayed are assigned. Most of the functions that can be used when the electronic document is displayed are functions related to the functions that can be used when the endoscopic image is displayed. For this reason, it can be expected that an operator familiar with the operation of the endoscopic image can easily operate the electronic document.
　次に、電子書類を表示するときの詳細な動作を、ラスタイメージを含むJPEG、GIF、BMP等の画像データを表示するときの動作と対比して説明する。ラスタイメージは、画像をドットの集合として表現するデータである。図１５は、画像データを表示するときの処理を示している。本実施形態の内視鏡装置で画像データを表示する動作は以下ようになる。以下の動作の前提として、記録媒体７に画像データが格納されている。また、フレームメモリ１６にはフレームバッファ用の領域が確保されている。 Next, the detailed operation when displaying an electronic document will be described in comparison with the operation when displaying image data such as JPEG, GIF, and BMP including a raster image. A raster image is data that represents an image as a set of dots. FIG. 15 shows processing when image data is displayed. The operation of displaying image data with the endoscope apparatus of the present embodiment is as follows. As a premise for the following operation, image data is stored in the recording medium 7. Further, a frame buffer area is secured in the frame memory 16.
　ステップＳ３００では、CPU１５は画像データを記録媒体７から読み込む。続いて、ステップＳ３０５では、CPU１５は、読み込んだ画像データをフレームメモリ１６内のフレームバッファに書き込む。 In step S300, the CPU 15 reads image data from the recording medium 7. Subsequently, in step S305, the CPU 15 writes the read image data into the frame buffer in the frame memory 16.
　画像データの拡大または縮小を行う場合、図１５に示す処理に続いて、図１６に示す処理が行われる。ステップＳ４００では、CPU１５は、操作部５を介して入力される拡大率または縮小率を取得する。続いて、ステップＳ４０５では、CPU１５は、ステップＳ４００で取得した拡大率または縮小率に基づいて、ステップＳ３００で読み込んだ画像データの画素を計算し、補間する。このときの補間方法として、ニアレストネイバー法、バイリニア法、バイキュービック法等が使用される。続いて、ステップＳ４１０では、CPU１５は、画素の補間によって拡大または縮小された画像データをフレームメモリ１６内のフレームバッファに書き込む。上記のように、画像データに対する拡大または縮小では画素の補間処理が行われるため、画質の劣化が生じる。 When enlarging or reducing the image data, the process shown in FIG. 16 is performed following the process shown in FIG. In step S <b> 400, the CPU 15 acquires an enlargement ratio or reduction ratio input via the operation unit 5. Subsequently, in step S405, the CPU 15 calculates and interpolates the pixels of the image data read in step S300 based on the enlargement ratio or reduction ratio acquired in step S400. As an interpolation method at this time, a nearest neighbor method, a bilinear method, a bicubic method, or the like is used. Subsequently, in step S410, the CPU 15 writes the image data enlarged or reduced by pixel interpolation into the frame buffer in the frame memory 16. As described above, since the pixel interpolation process is performed when the image data is enlarged or reduced, the image quality deteriorates.
　図７は、電子書類を表示するときの処理を示している。以下の動作の前提として、記録媒体７に電子書類が格納されている。電子書類は、位置データ、画像データ、描画データ、フォントデータ、文字データを含む。位置データは、画像データ、描画データ、文字データを表示する領域の位置を示すデータである。位置データは、画像データ、描画データ、文字データと関連付けられている。画像データは、画像をドットの集合として表現するラスタイメージを含むデータである。 FIG. 7 shows processing when displaying an electronic document. As a premise of the following operation, an electronic document is stored in the recording medium 7. The electronic document includes position data, image data, drawing data, font data, and character data. The position data is data indicating the position of an area for displaying image data, drawing data, and character data. The position data is associated with image data, drawing data, and character data. Image data is data including a raster image that represents an image as a set of dots.
　描画データは、画像を点で結ばれた線として表現するベクタイメージを形成するデータである。描画データは、描画位置を示す点の座標、描画する線の属性（線の太さ、色、破線、実線など）、描画する線で囲まれた面の属性（色や、パターンなど）の各情報を含む。フォントデータは、文字のフォント（書体、サイズ、色など）を規定するデータである。フォントデータは文字データと関連付けられている。文字データは、文字（文章）を示すデータである。フレームメモリ１６には、位置情報バッファ用の領域、画像バッファ用の領域、描画データバッファ用の領域、フォントバッファ用の領域、文字バッファ用の領域、フレームバッファ用の領域が確保されている。 Drawing data is data that forms a vector image that represents an image as a line connected by dots. The drawing data includes the coordinates of the point indicating the drawing position, the attributes of the line to be drawn (line thickness, color, broken line, solid line, etc.), and the attributes of the surface surrounded by the drawn line (color, pattern, etc.) Contains information. The font data is data that defines a font of a character (typeface, size, color, etc.). Font data is associated with character data. The character data is data indicating characters (sentences). The frame memory 16 has a position information buffer area, an image buffer area, a drawing data buffer area, a font buffer area, a character buffer area, and a frame buffer area.
　ステップＳ１００では、CPU１５は電子書類の１ページ分のデータを記録媒体７から読み込む。ステップＳ１００で読み込んだデータが位置データである場合（ステップＳ１０５）、ステップＳ１１０では、CPU１５は位置データをフレームメモリ１６内の位置情報バッファに格納する。続いて、処理はステップＳ１００に戻る。ステップＳ１００で読み込んだデータが画像データである場合（ステップＳ１０５）、ステップＳ１１５では、CPU１５は画像データをフレームメモリ１６内の画像バッファに格納する。続いて、処理はステップＳ１００に戻る。 In step S100, the CPU 15 reads data for one page of the electronic document from the recording medium 7. When the data read in step S100 is position data (step S105), in step S110, the CPU 15 stores the position data in a position information buffer in the frame memory 16. Subsequently, the process returns to step S100. When the data read in step S100 is image data (step S105), in step S115, the CPU 15 stores the image data in the image buffer in the frame memory 16. Subsequently, the process returns to step S100.
　ステップＳ１００で読み込んだデータが描画データである場合（ステップＳ１０５）、ステップＳ１２０では、CPU１５は描画データをフレームメモリ１６内の描画データバッファに格納する。続いて、処理はステップＳ１００に戻る。ステップＳ１００で読み込んだデータがフォントデータである場合（ステップＳ１０５）、ステップＳ１２５では、CPU１５はフォントデータをフレームメモリ１６内のフォントバッファに格納する。続いて、処理はステップＳ１００に戻る。ステップＳ１００で読み込んだデータが文字データである場合（ステップＳ１０５）、ステップＳ１３０では、CPU１５は文字データをフレームメモリ１６内の文字バッファに格納する。続いて、処理はステップＳ１００に戻る。 If the data read in step S100 is drawing data (step S105), the CPU 15 stores the drawing data in the drawing data buffer in the frame memory 16 in step S120. Subsequently, the process returns to step S100. If the data read in step S100 is font data (step S105), the CPU 15 stores the font data in the font buffer in the frame memory 16 in step S125. Subsequently, the process returns to step S100. When the data read in step S100 is character data (step S105), in step S130, the CPU 15 stores the character data in a character buffer in the frame memory 16. Subsequently, the process returns to step S100.
　ステップＳ１００で電子書類の１ページ分のデータを読み込む処理を繰り返した後、読み込むデータがなくなった場合（ステップＳ１０５）、ステップＳ１３５では、CPU１５は位置情報バッファから位置データを読み込む。ステップＳ１３５で読み込んだ位置データに関連付けられているデータが画像データである場合（ステップＳ１４０）、ステップＳ１４５では、CPU１５は画像データをフレームバッファに書き込む。 If the data to be read disappears after repeating the process of reading data for one page of the electronic document in step S100 (step S105), in step S135, the CPU 15 reads the position data from the position information buffer. When the data associated with the position data read in step S135 is image data (step S140), in step S145, the CPU 15 writes the image data into the frame buffer.
　ステップＳ１３５で読み込んだ位置データに関連付けられているデータが描画データである場合（ステップＳ１４０）、ステップＳ１５０では、CPU１５は、位置データが示す領域において、描画データが示す点の座標と線の属性に基づいて線の描画位置および線の種類を特定し、描画データが示す面の属性に基づいて面内の塗りつぶしの色やパターンを特定し、特定した内容に基づくベクタイメージを生成してフレームバッファに書き込む。 When the data associated with the position data read in step S135 is drawing data (step S140), in step S150, the CPU 15 sets the coordinates of the point indicated by the drawing data and the line attributes in the area indicated by the position data. The line drawing position and line type are specified based on the surface attributes, the fill color and pattern within the surface are specified based on the surface attributes indicated by the drawing data, and a vector image based on the specified contents is generated and stored in the frame buffer. Write.
　ステップＳ１３５で読み込んだ位置データに関連付けられているデータが文字データである場合（ステップＳ１４０）、ステップＳ１５５では、CPU１５は、文字データに基づいて描画対象の文字を特定し、位置データに基づいて文字の描画位置を特定し、フォントデータに基づいて文字のフォントを特定し、特定した内容に基づくベクタイメージを生成してフレームバッファに書き込む。 When the data associated with the position data read in step S135 is character data (step S140), in step S155, the CPU 15 specifies a character to be drawn based on the character data, and character based on the position data. The drawing position is specified, the font of the character is specified based on the font data, a vector image based on the specified content is generated and written to the frame buffer.
　電子書類の拡大または縮小を行う場合、図７に示す処理に続いて、図８に示す処理が行われる。図８に示す処理は、画像データ、描画データ、文字データのそれぞれに対する処理を含む。ステップＳ２００では、CPU１５は、操作部５のZOOMレバー２９を介して入力される拡大率または縮小率を取得する。続いて、ステップＳ２０５では、CPU１５は、ステップＳ２００で取得した拡大率または縮小率に基づいて、ステップＳ１００で読み込んだ画像データの画素を計算し、補間する。続いて、ステップＳ２１０では、CPU１５は、画素の補間によって拡大または縮小された画像データをフレームメモリ１６内のフレームバッファに書き込む。前述したように、画像データに対する拡大または縮小では画素の補間処理が行われるため、画質の劣化が生じる。 When enlarging or reducing the electronic document, the process shown in FIG. 8 is performed following the process shown in FIG. The processing shown in FIG. 8 includes processing for each of image data, drawing data, and character data. In step S <b> 200, the CPU 15 acquires an enlargement ratio or reduction ratio input via the ZOOM lever 29 of the operation unit 5. Subsequently, in step S205, the CPU 15 calculates and interpolates the pixels of the image data read in step S100 based on the enlargement ratio or reduction ratio acquired in step S200. Subsequently, in step S210, the CPU 15 writes the image data enlarged or reduced by pixel interpolation into the frame buffer in the frame memory 16. As described above, since the pixel interpolation process is performed when the image data is enlarged or reduced, the image quality deteriorates.
　ステップＳ２１５では、CPU１５は、ステップＳ１００で読み込んだ描画データを用いて、ステップＳ２００で取得した拡大率または縮小率に基づく拡大または縮小を行った後の描画領域の位置データと描画領域内の描画位置を示す点の座標と線の属性（太さ）を計算する。続いて、ステップＳ２２０では、CPU１５は、ステップＳ２１５で計算した属性を有する線のベクタイメージを生成し、ステップＳ２１５で計算した位置データと点の座標が示す位置に対応するフレームメモリ１６内のフレームバッファに書き込む。 In step S215, the CPU 15 uses the drawing data read in step S100 to perform drawing area position data and drawing position in the drawing area after performing enlargement or reduction based on the enlargement ratio or reduction ratio acquired in step S200. Calculates the coordinates of the point indicating and the attribute (thickness) of the line. Subsequently, in step S220, the CPU 15 generates a vector image of the line having the attribute calculated in step S215, and the frame buffer in the frame memory 16 corresponding to the position indicated by the position data and point coordinates calculated in step S215. Write to.
　ステップＳ２２５では、CPU１５は、ステップＳ１００で読み込んだ文字データを用いて、ステップＳ２００で取得した拡大率または縮小率に基づく拡大または縮小を行った後の描画領域の位置データと、拡大または縮小を行った後の文字のサイズとを計算する。フォントデータ中の文字のサイズのデータが、ステップＳ２２５で計算されたデータに置き換えられたフォントデータが次のステップＳ２３０の処理で使用される。続いて、ステップＳ２３０では、CPU１５は、ステップＳ２２５で計算した文字のサイズのデータを含むフォントデータに基づいて文字のベクタイメージを生成し、ステップＳ２２５で計算した位置データが示す位置に対応するフレームメモリ１６内のフレームバッファに書き込む。上記のように、描画データに基づく図形や文字データに基づく文字に関しては、拡大率または縮小率に応じて拡大または縮小された属性を有する線や、拡大率または縮小率に応じて拡大または縮小された文字を含むベクタイメージが生成される。このため、拡大または縮小を行った後のイメージの劣化が生じない。 In step S225, using the character data read in step S100, the CPU 15 performs enlargement or reduction with the position data of the drawing area after enlargement or reduction based on the enlargement ratio or reduction ratio acquired in step S200. And the size of the text after. The font data obtained by replacing the character size data in the font data with the data calculated in step S225 is used in the next step S230. Subsequently, in step S230, the CPU 15 generates a character vector image based on the font data including the character size data calculated in step S225, and the frame memory corresponding to the position indicated by the position data calculated in step S225. 16 is written in the frame buffer. As described above, graphics based on drawing data and characters based on text data are enlarged or reduced according to the line with the attribute enlarged or reduced according to the enlargement ratio or reduction ratio, or according to the enlargement ratio or reduction ratio. A vector image containing the characters is generated. For this reason, image degradation after enlargement or reduction does not occur.
　上述したように、本実施形態によれば、内視鏡装置に付随する表示部１１に電子書類を表示することができる。また、被写体の画像である内視鏡画像を操作するための操作部５に対して、電子書類の操作のための機能が割り当てられているので、操作部５を電子書類の操作にも使用することができる。また、画質（表示品質）が劣化しないベクタイメージを使用して電子書類を表示するので、拡大または縮小を行う場合でも電子書類の視認性の低下を低減することができる。 As described above, according to this embodiment, an electronic document can be displayed on the display unit 11 attached to the endoscope apparatus. In addition, since a function for operating the electronic document is assigned to the operation unit 5 for operating the endoscopic image that is the image of the subject, the operation unit 5 is also used for the operation of the electronic document. be able to. In addition, since the electronic document is displayed using a vector image whose image quality (display quality) does not deteriorate, it is possible to reduce a decrease in visibility of the electronic document even when enlargement or reduction is performed.
　操作者が操作することが可能な部材に割り当てられている、電子書類が表示されているときに使用可能な機能の大部分は、内視鏡画像が表示されているときに使用可能な機能に関連した機能である。このため、操作者が電子書類の操作を容易に行うことができる。 Most of the functions that can be used when an electronic document is displayed and that are assigned to members that can be operated by the operator are functions that can be used when an endoscopic image is displayed. It is a related function. Therefore, the operator can easily operate the electronic document.
　BRTレバー２４とZOOMレバー２９のように二方向に移動可能な部材に対して、内視鏡画像または電子書類の表示状態（明るさや倍率）を複数の状態の間で変化させる機能が割り当てられている。このため、操作者が簡単な操作で内視鏡画像または電子書類の表示状態を変化させることができる。 Functions that change the display state (brightness and magnification) of an endoscopic image or electronic document between a plurality of states are assigned to members that can move in two directions, such as the BRT lever 24 and the ZOOM lever 29. Yes. Therefore, the display state of the endoscopic image or the electronic document can be changed by a simple operation by the operator.
　本実施形態では、内視鏡画像と電子書類を切り替えて表示するので、表示部１１の表示領域を有効に使用して内視鏡画像、電子書類のそれぞれを見やすく表示することができる。内視鏡画像と電子書類の切り替えを簡単に行うことができるので、操作者が被写体と電子書類との比較を簡単に行うことができる。また、電子書類として目盛り（スケール）や被写体の設計データ等を表示すれば、検査者が被写体と目盛りや設計データ等を目視で比較して計測を行うこともできる。 In this embodiment, since the endoscopic image and the electronic document are switched and displayed, it is possible to effectively display the endoscopic image and the electronic document by using the display area of the display unit 11 effectively. Since the endoscope image and the electronic document can be easily switched, the operator can easily compare the subject and the electronic document. Further, if a scale (scale), subject design data, and the like are displayed as an electronic document, the inspector can also perform measurement by visually comparing the subject with the scale, design data, and the like.
　内視鏡画像と電子書類の間で表示の切り替えが行われたとき、操作対象も切り替えられ、内視鏡画像と電子書類のうち、表示されているほうが自動的に操作対象となる。このため、操作者が表示の切り替えによる操作対象の切り替えを意識せずに操作を行うことができ、操作者の負担を軽減することができる。 When the display is switched between the endoscopic image and the electronic document, the operation target is also switched, and the displayed one of the endoscopic image and the electronic document automatically becomes the operation target. For this reason, the operator can perform the operation without being aware of the switching of the operation target due to the switching of the display, and the burden on the operator can be reduced.
　（第２の実施形態）
　次に、本発明の第２の実施形態を説明する。図９は、本実施形態による内視鏡装置の内部の構成を示している。図９では、図４に示した画像切り替え器１８が画像重畳器３１に変更されている。画像重畳器３１以外の構成については、図４に示した構成と同様である。図１、図２、図３に示した構成は、本実施形態でも共通である。 (Second Embodiment)
Next, a second embodiment of the present invention will be described. FIG. 9 shows an internal configuration of the endoscope apparatus according to the present embodiment. In FIG. 9, the image switching unit 18 shown in FIG. 4 is changed to an image superimposing unit 31. The configuration other than the image superimposing unit 31 is the same as the configuration shown in FIG. The configuration shown in FIGS. 1, 2, and 3 is common to this embodiment.
　本実施形態では、内視鏡画像と電子書類が同時にかつ重ねて表示される。画像重畳器３１は、フレームメモリ１４から出力された内視鏡画像と、フレームメモリ１６から出力された電子書類とを重畳して重畳画像を生成し、重畳画像をOSD重畳器１９へ出力する。内視鏡画像と電子書類の重畳の際、画像重畳器３１は、同一の画素について、内視鏡画像の画素値と電子書類の画素値を用いて重畳画像の画素値を計算する。内視鏡画像の画素値と電子書類の画素値のそれぞれに対する重み付けの係数がCPU１５によって設定される。この重み付けの係数は、内視鏡画像と電子書類のそれぞれの濃度を決定する係数である。この重み付けの係数を変化させることによって、内視鏡画像と電子書類の一方を薄く、他方を濃く表示したり、内視鏡画像と電子書類を同等の濃度で表示したりすることができる。操作者は、操作部５を操作することによって、この重み付けの係数の設定を行うことができる。 In the present embodiment, the endoscopic image and the electronic document are displayed simultaneously and superimposed. The image superimposing unit 31 superimposes the endoscopic image output from the frame memory 14 and the electronic document output from the frame memory 16 to generate a superimposed image, and outputs the superimposed image to the OSD superimposing unit 19. When superimposing the endoscopic image and the electronic document, the image superimposing unit 31 calculates the pixel value of the superimposed image using the pixel value of the endoscopic image and the pixel value of the electronic document for the same pixel. The CPU 15 sets weighting coefficients for the pixel values of the endoscopic image and the pixel values of the electronic document. This weighting coefficient is a coefficient that determines the respective densities of the endoscopic image and the electronic document. By changing the weighting coefficient, one of the endoscopic image and the electronic document can be displayed lightly and the other can be displayed darkly, or the endoscopic image and the electronic document can be displayed at the same density. The operator can set the weighting coefficient by operating the operation unit 5.
　本実施形態では、BRTレバー２４に対して、重み付けの係数を設定する機能が割り当てられている。第１の実施形態と同様に、BRTレバー２４には、内視鏡画像が表示されているときに使用可能な機能として、内視鏡画像の明るさを調整する機能が割り当てられている。また、BRTレバー２４には、電子書類が表示されているときに使用可能な機能として、上記の重み付けの係数を設定する機能が割り当てられている。 In the present embodiment, a function for setting a weighting coefficient is assigned to the BRT lever 24. Similar to the first embodiment, the BRT lever 24 is assigned a function for adjusting the brightness of the endoscopic image as a function that can be used when the endoscopic image is displayed. The BRT lever 24 is assigned a function for setting the weighting coefficient as a function usable when an electronic document is displayed.
　電子書類が表示されているときに操作者がBRTレバー２４を操作すると、CPU１５は、BRTレバー２４の状態に応じた重み付け係数を画像重畳器３１に設定する。より具体的には、操作者がBRTレバー２４を第１の方向に移動させると、内視鏡画像の重み付け係数が増加し電子書類の重み付け係数が減少する方向に重み付け係数が変化する。また、操作者がBRTレバー２４を第２の方向に移動させると、内視鏡画像の重み付け係数が減少し電子書類の重み付け係数が増加する方向に重み付け係数が変化する。 When the operator operates the BRT lever 24 while the electronic document is displayed, the CPU 15 sets a weighting coefficient corresponding to the state of the BRT lever 24 in the image superimposing unit 31. More specifically, when the operator moves the BRT lever 24 in the first direction, the weighting coefficient changes in a direction in which the weighting coefficient of the endoscope image increases and the weighting coefficient of the electronic document decreases. When the operator moves the BRT lever 24 in the second direction, the weighting coefficient changes in a direction in which the weighting coefficient of the endoscopic image decreases and the weighting coefficient of the electronic document increases.
　表示部１１には内視鏡画像と電子書類が同時に表示されるが、同一の時点では、内視鏡画像と電子書類の一方のみに関する操作が可能である。表示部１１には、内視鏡画像と電子書類のどちらに関する操作が可能であるのかを示すマークが表示される。 The endoscopic image and the electronic document are displayed on the display unit 11 at the same time, but at the same time, an operation related to only one of the endoscopic image and the electronic document can be performed. The display unit 11 displays a mark indicating whether an operation regarding an endoscopic image or an electronic document is possible.
　図１０と図１１は、内視鏡画像と電子書類が表示されているときの表示部１１の画面を示している。図１０では、内視鏡画像と電子書類が重ねて表示されていると共に、内視鏡画像に関する操作が可能であることを示すマーク１２０が表示されている。図１１では、内視鏡画像と電子書類が重ねて表示されていると共に、電子書類に関する操作が可能であることを示すマーク１２５が表示されている。マーク１２０またはマーク１２５を表示する際、CPU１５はマーク１２０またはマーク１２５のデータをOSDバッファ１７に書き込む。OSD重畳器１９は、画像重畳器３１から出力された重畳画像に対してマーク１２０またはマーク１２５のデータを重畳する。これによって、図１０に示すようにマーク１２０が表示され、図１１に示すようにマーク１２５が表示される。 10 and 11 show screens of the display unit 11 when an endoscopic image and an electronic document are displayed. In FIG. 10, the endoscope image and the electronic document are displayed in an overlapping manner, and a mark 120 indicating that an operation related to the endoscope image is possible is displayed. In FIG. 11, the endoscope image and the electronic document are displayed so as to overlap each other, and a mark 125 indicating that an operation related to the electronic document is possible is displayed. When displaying the mark 120 or mark 125, the CPU 15 writes the data of the mark 120 or mark 125 into the OSD buffer 17. The OSD superimposing unit 19 superimposes the data of the mark 120 or the mark 125 on the superimposed image output from the image superimposing unit 31. As a result, the mark 120 is displayed as shown in FIG. 10, and the mark 125 is displayed as shown in FIG.
　本実施形態では、内視鏡画像と電子書類の間で操作対象を切り替える機能がVIEWボタン２８に割り当てられている。表示切り替えモードで、内視鏡画像に関する操作が可能であることを示すマークが表示されているとき、操作者がVIEWボタン２８を操作すると、CPU１５は、操作対象の設定を内視鏡画像から電子書類に変更する。また、CPU１５は、電子書類に関する操作が可能であることを示すマークのデータをOSDバッファ１７に書き込む。OSD重畳器１９は、画像重畳器３１から出力された重畳画像に対して、このデータを重畳する。 In this embodiment, a function for switching an operation target between an endoscopic image and an electronic document is assigned to the VIEW button 28. When a mark indicating that an operation related to an endoscopic image is possible is displayed in the display switching mode, when the operator operates the VIEW button 28, the CPU 15 changes the setting of the operation target from the endoscopic image electronically. Change to a document. Further, the CPU 15 writes the mark data indicating that the operation regarding the electronic document is possible in the OSD buffer 17. The OSD superimposer 19 superimposes this data on the superimposed image output from the image superimposer 31.
　また、表示切り替えモードで、電子書類に関する操作が可能であることを示すマークが表示されているとき、操作者がVIEWボタン２８を操作すると、CPU１５は、操作対象の設定を電子書類から内視鏡画像に変更する。また、CPU１５は、内視鏡画像に関する操作が可能であることを示すマークのデータをOSDバッファ１７に書き込む。OSD重畳器１９は、画像重畳器３１から出力された重畳画像に対して、このデータを重畳する。 In addition, when a mark indicating that an operation relating to an electronic document can be performed is displayed in the display switching mode, when the operator operates the VIEW button 28, the CPU 15 sets the operation target from the electronic document to the endoscope. Change to an image. In addition, the CPU 15 writes mark data indicating that an operation related to the endoscopic image is possible in the OSD buffer 17. The OSD superimposer 19 superimposes this data on the superimposed image output from the image superimposer 31.
　本実施形態では、内視鏡画像と電子書類のどちらに関する操作が可能であるのかを示すマークが表示部１１に表示されるが、内視鏡画像と電子書類のどちらに関する操作が可能であるのかを示す文字を表示部１１に表示してもよい。 In the present embodiment, a mark indicating whether an operation for an endoscopic image or an electronic document is possible is displayed on the display unit 11, but which operation for an endoscopic image or an electronic document is possible. May be displayed on the display unit 11.
　上述したように、本実施形態によれば、内視鏡画像と電子書類が同時に重ねて表示されるので、操作者が被写体と電子書類との比較を簡単に行うことができる。電子書類として目盛り（スケール）や被写体の設計データ等を表示すれば、検査者が被写体と目盛りや設計データ等を目視で比較して計測を行うこともできる。 As described above, according to the present embodiment, since the endoscope image and the electronic document are displayed in a superimposed manner at the same time, the operator can easily compare the subject and the electronic document. If a scale (scale), subject design data, and the like are displayed as an electronic document, the inspector can also perform measurement by visually comparing the subject with the scale, design data, and the like.
　内視鏡画像と電子書類のどちらに関する操作が可能であるのかを示すマークが表示部１１に表示されるので、操作者は混乱せずに、内視鏡画像または電子書類に関する操作を行うことができる。 Since a mark indicating whether an operation related to an endoscopic image or an electronic document is possible is displayed on the display unit 11, the operator can perform an operation related to the endoscopic image or the electronic document without being confused. it can.
　（第３の実施形態）
　次に、本発明の第３の実施形態を説明する。図１２は、本実施形態による内視鏡装置の内部の構成を示している。図１２では、図９に示した画像重畳器３１が画像合成器３２に変更されている。画像合成器３２以外の構成については、図４に示した構成と同様である。図１、図２、図３に示した構成は、本実施形態でも共通である。 (Third embodiment)
Next, a third embodiment of the present invention will be described. FIG. 12 shows an internal configuration of the endoscope apparatus according to the present embodiment. In FIG. 12, the image superimposer 31 shown in FIG. The configuration other than the image synthesizer 32 is the same as the configuration shown in FIG. The configurations shown in FIGS. 1, 2, and 3 are common to this embodiment.
　本実施形態では、内視鏡画像と電子書類が同時にかつ並べて表示される。画像合成器３２は、フレームメモリ１４から出力された内視鏡画像と、フレームメモリ１６から出力された電子書類とを並べて合成画像を生成し、合成画像をOSD重畳器１９へ出力する。 In this embodiment, the endoscopic image and the electronic document are displayed simultaneously and side by side. The image synthesizer 32 generates a composite image by arranging the endoscopic image output from the frame memory 14 and the electronic document output from the frame memory 16, and outputs the composite image to the OSD superimposer 19.
　表示部１１には内視鏡画像と電子書類が同時に表示されるが、同一の時点では、内視鏡画像と電子書類の一方のみに関する操作が可能である。表示部１１には、内視鏡画像と電子書類のどちらに関する操作が可能であるのかを示すマークが表示される。 The endoscopic image and the electronic document are displayed on the display unit 11 at the same time, but at the same time, an operation related to only one of the endoscopic image and the electronic document can be performed. The display unit 11 displays a mark indicating whether an operation regarding an endoscopic image or an electronic document is possible.
　図１３と図１４は、内視鏡画像と電子書類が表示されているときの表示部１１の画面を示している。図１３では、内視鏡画像１３０と電子書類１３５が重ねて表示されていると共に、内視鏡画像１３０に関する操作が可能であることを示すマーク１４０が表示されている。図１４では、内視鏡画像１３０と電子書類１３５が重ねて表示されていると共に、電子書類１３５に関する操作が可能であることを示すマーク１４５が表示されている。マーク１４０，１４５を表示するときの動作は、第２の実施形態で説明した動作と同様である。 13 and 14 show screens of the display unit 11 when an endoscopic image and an electronic document are displayed. In FIG. 13, the endoscope image 130 and the electronic document 135 are displayed in an overlapping manner, and a mark 140 indicating that an operation related to the endoscope image 130 is possible is displayed. In FIG. 14, the endoscope image 130 and the electronic document 135 are displayed so as to overlap each other, and a mark 145 indicating that an operation relating to the electronic document 135 is possible is displayed. The operation when displaying the marks 140 and 145 is the same as the operation described in the second embodiment.
　本実施形態では、内視鏡画像と電子書類の間で操作対象を切り替える機能がVIEWボタン２８に割り当てられている。操作者がVIEWボタン２８を操作することにより操作対象を切り替える方法は、第２の実施形態で説明した方法と同様である。すなわち、表示切り替えモードで、内視鏡画像に関する操作が可能であることを示すマークが表示されているとき、操作者がVIEWボタン２８を操作すると、操作対象の設定が内視鏡画像から電子書類に変更される。また、表示切り替えモードで、電子書類に関する操作が可能であることを示すマークが表示されているとき、操作者がVIEWボタン２８を操作すると、操作対象の設定が電子書類から内視鏡画像に変更される。 In this embodiment, a function for switching an operation target between an endoscopic image and an electronic document is assigned to the VIEW button 28. The method of switching the operation target by the operator operating the VIEW button 28 is the same as the method described in the second embodiment. That is, when a mark indicating that an operation related to an endoscope image is possible is displayed in the display switching mode, when the operator operates the VIEW button 28, the setting of the operation target is changed from the endoscope image to the electronic document. Changed to In addition, when a mark indicating that an operation relating to an electronic document is possible is displayed in the display switching mode, when the operator operates the VIEW button 28, the setting of the operation target is changed from the electronic document to the endoscopic image. Is done.
　本実施形態では、内視鏡画像と電子書類を左右のどちらに表示するのかを切り替える機能がBRTレバー２４に割り当てられている。表示切り替えモードで、操作者がBRTレバー２４を第１の方向に移動させると、CPU１５は内視鏡画像を左側に、電子書類を右側に並べるように画像合成器３２を制御する。このため、表示部１１には内視鏡画像が左側に、電子書類が右側に表示される。また、操作者がBRTレバー２４を第２の方向に移動させると、CPU１５は内視鏡画像を右側に、電子書類を左側に並べるように画像合成器３２を制御する。このため、表示部１１には内視鏡画像が右側に、電子書類が左側に表示される。上記のように内視鏡画像と電子書類を左右に並べているが、内視鏡画像と電子書類を上下に並べてもよい。 In this embodiment, the BRT lever 24 is assigned a function for switching between displaying the endoscopic image and the electronic document on the left and right. When the operator moves the BRT lever 24 in the first direction in the display switching mode, the CPU 15 controls the image synthesizer 32 so that the endoscope images are arranged on the left side and the electronic documents are arranged on the right side. For this reason, the endoscope image is displayed on the left side and the electronic document is displayed on the right side on the display unit 11. When the operator moves the BRT lever 24 in the second direction, the CPU 15 controls the image synthesizer 32 so that the endoscope images are arranged on the right side and the electronic documents are arranged on the left side. For this reason, the endoscope image is displayed on the right side and the electronic document is displayed on the left side on the display unit 11. As described above, the endoscope image and the electronic document are arranged side by side, but the endoscope image and the electronic document may be arranged vertically.
　本実施形態では、内視鏡画像と電子書類のどちらに関する操作が可能であるのかを示すマークが表示部１１に表示されるが、内視鏡画像と電子書類のどちらに関する操作が可能であるのかを示す文字を表示部１１に表示してもよい。また、内視鏡画像または電子書類の周囲に縁を表示することによって、内視鏡画像と電子書類のどちらに関する操作が可能であるのかを操作者に通知してもよい。例えば、内視鏡画像に関する操作が可能なときには内視鏡画像の周囲に縁を表示し、電子書類に関する操作が可能なときには電子書類の周囲に縁を表示すればよい。 In the present embodiment, a mark indicating whether an operation for an endoscopic image or an electronic document is possible is displayed on the display unit 11, but which operation for an endoscopic image or an electronic document is possible. May be displayed on the display unit 11. Further, by displaying an edge around the endoscopic image or the electronic document, the operator may be notified whether the operation regarding the endoscopic image or the electronic document is possible. For example, an edge may be displayed around the endoscope image when an operation related to the endoscopic image is possible, and an edge may be displayed around the electronic document when an operation related to the electronic document is possible.
　上述したように、本実施形態によれば、内視鏡画像と電子書類が同時に並べて表示されるので、操作者が被写体と電子書類との比較を簡単に行うことができる。電子書類として目盛り（スケール）や被写体の設計データ等を表示すれば、検査者が被写体と目盛りや設計データ等を目視で比較して計測を行うこともできる。 As described above, according to the present embodiment, since the endoscope image and the electronic document are displayed side by side at the same time, the operator can easily compare the subject and the electronic document. If a scale (scale), subject design data, and the like are displayed as an electronic document, the inspector can also perform measurement by visually comparing the subject with the scale, design data, and the like.
　内視鏡画像と電子書類のどちらに関する操作が可能であるのかを示すマークが表示部１１に表示されるので、操作者は混乱せずに、内視鏡画像または電子書類に関する操作を行うことができる。 Since a mark indicating whether an operation related to an endoscopic image or an electronic document is possible is displayed on the display unit 11, the operator can perform an operation related to the endoscopic image or the electronic document without being confused. it can.
　以上、図面を参照して本発明の実施形態について詳述してきたが、具体的な構成は上記の実施形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計変更等も含まれる。 As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the above-described embodiments, and includes design changes and the like without departing from the gist of the present invention. .
　被写体の観察に用いる内視鏡装置に本発明を適用することによって、内視鏡装置の操作性を向上することができる。 By applying the present invention to an endoscope apparatus used for observing a subject, the operability of the endoscope apparatus can be improved.
　１・・・本体部、２・・・挿入部、３・・・先端部、４・・・湾曲部、５・・・操作部、６・・・ユニバーサルケーブル、７・・・記録媒体、１１・・・表示部、１２・・・撮像素子、１３・・・A/Dコンバータ、１４，１６・・・フレームメモリ、１５・・・CPU、１７・・・OSDバッファ、１８・・・画像切り替え器、１９・・・OSD重畳器、２１・・・電源ボタン、２２・・・LIGHTボタン、２３，２７・・・ジョイスティック、２４・・・BRTレバー、２５・・・MENU/EXITボタン、２６・・・LIVEボタン、２８・・・VIEWボタン、２９・・・ZOOMレバー、３０・・・FRZ/RECボタン、３１・・・画像重畳器、３２・・・画像合成器 DESCRIPTION OF SYMBOLS 1 ... Main-body part, 2 ... Insertion part, 3 ... Tip part, 4 ... Bending part, 5 ... Operation part, 6 ... Universal cable, 7 ... Recording medium, 11 ... Display unit, 12 ... Image sensor, 13 ... A / D converter, 14, 16 ... Frame memory, 15 ... CPU, 17 ... OSD buffer, 18 ... Image switching 19 ... OSD superimposer, 21 ... Power button, 22 ... LIGHT button, 23, 27 ... Joystick, 24 ... BRT lever, 25 ... MENU / EXIT button, 26 ..LIVE button 28 ... VIEW button 29 ... ZOOM lever 30 ... FRZ / REC button 31 ... Image superimposer 32 ... Image synthesizer

Claims (6)

  1. 　被写体を撮像し、前記被写体の画像を生成する撮像部と、
    　前記被写体の画像と、拡大または縮小の際に品質が劣化しないデータを含み、１または複数のページからなる電子書類とを同時に表示する表示部と、
    　を有する内視鏡装置。     An imaging unit that images a subject and generates an image of the subject;
    A display unit that simultaneously displays an image of the subject and an electronic document including one or a plurality of pages, including data that does not deteriorate in quality when enlarged or reduced;
    An endoscope apparatus having
  2. 　前記電子書類は、前記拡大または縮小の際に品質が劣化しないデータであるベクタイメージを含む請求項１に記載の内視鏡装置。 The endoscope apparatus according to claim 1, wherein the electronic document includes a vector image which is data whose quality does not deteriorate during the enlargement or reduction.
  3. 　前記表示部は、前記被写体の画像および前記電子書類を重ねて表示する請求項１または請求項２に記載の内視鏡装置。 The endoscope apparatus according to claim 1 or 2, wherein the display unit displays the subject image and the electronic document in an overlapping manner.
  4. 　前記表示部は、前記被写体の画像および前記電子書類を並べて表示する請求項１または請求項２に記載の内視鏡装置。 The endoscope apparatus according to claim 1 or 2, wherein the display unit displays the image of the subject and the electronic document side by side.
  5. 　前記制御部は、前記操作部の操作に対応して、前記表示部に表示される前記被写体の画像および前記電子書類のうちの一方に対して、前記操作部の操作と対応付けられた表示制御を行い、前記操作部の操作に対応して、表示制御の対象を前記被写体の画像および前記電子書類の間で切り替える請求項１～請求項４のいずれか一項に記載の内視鏡装置。 In response to the operation of the operation unit, the control unit displays control associated with the operation of the operation unit for one of the subject image and the electronic document displayed on the display unit. The endoscope apparatus according to any one of claims 1 to 4, wherein the display control target is switched between the image of the subject and the electronic document in response to an operation of the operation unit.
  6. 　操作用の部材を有する操作部と、
    　前記表示部に表示される前記被写体の画像および前記電子書類に対して、前記操作部の操作と対応付けられた表示制御を行う制御部と、
    　を有し、
    　前記表示部はさらに、表示制御の対象を示す情報を表示し、
    　前記制御部はさらに、前記操作部の操作に対応して、前記表示部に表示される前記情報が前記被写体の画像および前記電子書類のうちの一方を示すように前記情報の表示制御を行い、前記情報が前記被写体の画像を示す場合、前記表示部に表示されている前記被写体の画像に対して、前記操作部の操作と対応付けられた表示制御を行い、前記情報が前記電子書類を示す場合、前記表示部に表示されている前記電子書類に対して、前記操作部の操作と対応付けられた表示制御を行う請求項５に記載の内視鏡装置。     An operation unit having an operation member;
    A control unit that performs display control associated with an operation of the operation unit on the image of the subject and the electronic document displayed on the display unit;
    Have
    The display unit further displays information indicating a display control target,
    In response to the operation of the operation unit, the control unit further performs display control of the information so that the information displayed on the display unit indicates one of the image of the subject and the electronic document, When the information indicates the image of the subject, display control associated with the operation of the operation unit is performed on the image of the subject displayed on the display unit, and the information indicates the electronic document The endoscope apparatus according to claim 5, wherein display control associated with an operation of the operation unit is performed on the electronic document displayed on the display unit.
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