JP2017131499A - Endoscope apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a user to easily confirm the recording time of a video file by enabling the recording time of the video file to be displayed on a video playback preparation screen displayed prior to a video playback screen on which playback images of the video are displayed.SOLUTION: An endoscope apparatus comprises: an endoscope provided with an imaging unit for capturing images of a subject; a video data generation unit for generating video data representing the subject's moving images captured by the imaging unit; a recording processing unit for recording in a recording medium, with time data representing the recording time of the video data generated by the video data generation unit in association with the moving images; a video playback preparation screen generation unit for generating a video playback preparation screen for initiating the playback of the video data recorded in the recording medium; and a time display superimposition unit for obtaining the time data corresponding to the moving images of a playback candidate displayed on the video playback preparation screen and superimposing, on the video playback preparation screen, a display representing the recording time of the moving images of the playback candidate based on the time data.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an endoscope apparatus in which a display unit is integrally attached.

  Conventionally, endoscopes are used in the medical field, the industrial field, and the like. An electronic endoscope is provided with an image sensor. An optical image from a subject is converted into a video signal by an image sensor and given to a monitor or a recording device.

  2. Description of the Related Art In recent years, an endoscope apparatus suitable for carrying with a small camera unit integrally attached to an endoscope has been commercialized. The camera unit is attached to the operation unit on the proximal end side of the endoscope insertion unit. The camera unit is provided with a recording unit and a display unit. The user can observe the endoscopic image on the display screen of the display unit and can also operate the operation unit while viewing the display screen. . The display unit is also provided with a touch panel, and the operation of recording and reproducing and displaying the endoscopic image can be controlled by operating the touch panel with a finger.

  In addition, some endoscope apparatuses of this type can not only shoot a subject but also shoot a moving image. The recording unit records the still image and moving image captured by the image sensor as a file and records them on a recording medium, and also reads out and reproduces the still image and moving image file recorded on the recording medium for display on the display unit. It can be done. In Patent Literature 1, a medical image recording apparatus that records still images and moving images obtained by an endoscope is proposed.

  The recording unit includes information on the recording time of the moving image when the moving image file is generated. As a result, when the moving image file is played back by the recording unit, the time required for playing the moving image file (playing time), the time from the start of playback, the remaining time required for playing, etc. are displayed on the screen of the display unit. Can be done.

    JP 2005-44004 A

  As described above, by playing back a moving image file that has been recorded in the past, it is possible to display the recording time of the moving image (= reproduction time at the same speed) on the display unit. The user can confirm the recording time of each moving image file by displaying the recording time displayed on the display unit. However, in order to check the recording time, the moving image file must be played back, and it takes time to check the recording time. In particular, when trying to check the recording times of a plurality of moving image files, it is necessary to sequentially reproduce each moving image file, which is extremely complicated.

  The present invention enables a user to easily check the recording time of a moving image file by enabling the recording time of the moving image file to be displayed on the moving image reproduction preparation screen displayed before the moving image reproduction screen for displaying the reproduced image of the moving image. An object of the present invention is to provide an endoscope apparatus that can perform the above-described operation.

  An endoscope apparatus according to the present invention includes an endoscope including an imaging unit that images a subject, a moving image data generation unit that generates moving image data representing a moving image of the subject imaged by the imaging unit, In order to start reproduction of moving image data recorded on the recording medium, and a recording processing unit that records time data representing a recording time of the moving image data generated by the moving image data generation unit on the recording medium in association with the moving image A video playback preparation screen generating unit that generates the video playback preparation screen, and acquiring the time data corresponding to the moving image of the playback candidate displayed on the video playback preparation screen, and the playback candidate based on the time data A time display superimposing unit that superimposes a display representing the recording time of the moving image on the reproduction preparation screen.

  According to the present invention, the recording time of the moving image file can be displayed on the moving image reproduction preparation screen displayed before the moving image reproduction screen for displaying the reproduced image of the moving image, so that the user can easily reduce the recording time of the moving image file. It has the effect that it can be confirmed.

The block diagram which shows the circuit structure of the endoscope apparatus which concerns on one embodiment of this invention. Explanatory drawing which shows the external appearance of an endoscope apparatus. Explanatory drawing which shows an example of a moving image reproduction preparation screen. Explanatory drawing which shows an example of a moving image reproduction screen. Explanatory drawing which shows an example of the moving image reproduction preparation screen in multi-frame display. Explanatory drawing which shows an example of the moving image reproduction preparation screen in multi-frame display. The block diagram which shows the observation screen production | generation part employ | adopted as another example. Explanatory drawing which shows the example of a display of the observation screen in another example. Explanatory drawing which shows the example of a display of the observation screen in another example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a circuit configuration of an endoscope apparatus according to an embodiment of the present invention. FIG. 2 is an explanatory view showing the appearance of the endoscope apparatus. In the present embodiment, the recording time of a moving image file can be displayed on the moving image reproduction preparation screen displayed on the display screen of the display unit.

  As shown in FIG. 2, the endoscope 1 includes an insertion unit 10 that is inserted into a test site in a body cavity that is a subject, and an operation unit 15 that is connected to the proximal end side of the insertion unit 10. And a camera unit 20 disposed at the upper end of the operation unit 15 to constitute a main part.

  The insertion portion 10 is formed in an elongated shape having flexibility, and includes a hard distal end portion 10a positioned on the distal end side, a curved portion 10b continuously provided on the proximal end side of the distal end portion 10a, A main part is constituted by the flexible part 10c continuously provided on the base end side of the bending part 10b.

  The operation unit 15 includes a grasping unit 15a grasped by the operator when the operator grasps the endoscope 1, and an operation unit main body 15b provided on the proximal end side of the grasping unit 15a. The main part is composed. The gripping portion 15a has an outer shape in a shape that can be gripped so as to be wrapped by the surgeon, for example, the thumb of the hand and other fingers, for example, a rod shape. In addition, the grasping portion 15a is provided with a treatment instrument insertion port 16 that extends into the endoscope 1 and inserts and removes the treatment instrument into and from the body cavity.

  In addition, the operation portion main body 15b is provided with a suction port 17 used when sucking a liquid such as a body fluid or a sputum from the body cavity. A suction device can be connected to the suction port 17 via a tube (not shown). In addition, the operation portion main body 15b is provided with a vent base 18 that is used for supplying air into the insertion portion 10, the operation portion 15, and the camera portion 20 when the endoscope 1 is inspected for water leakage. Yes. An air supply device can be connected to the vent base 18 via a tube (not shown). The operation unit main body 15b is also provided with a bending operation lever (not shown) for bending the bending portion 10b in the vertical direction, for example.

  The operation unit main body 15b records a recording switch 19a for instructing the start and end of recording of an endoscopic image in the camera unit 20, a mode for recording a still image by the recording switch 19a, and a moving image. And a recording mode changeover switch 19b for switching between modes.

  As shown in FIG. 2, the camera unit 20 includes a box-shaped housing 20a having a substantially rectangular parallelepiped shape, and a display unit 20b that is rotatably attached to the housing 20a by a rotation shaft 20c. The display unit 20b is pivotally supported by the rotation shaft 20c and can tilt the display screen 20d at a predetermined tilt angle with respect to the housing 20a. The surgeon can also operate each unit of the operation unit 15 while viewing the display on the display screen 20d. A power switch 20e of the camera unit 20 is disposed on the end surface of the housing 20a.

  As shown in FIG. 1, the endoscope 1 is provided with an illumination optical system 11 and an objective optical system 12 at the distal end of an insertion portion 10. A light source 13 such as an LED is disposed in the operation unit 15. The camera unit 20 is provided with a light source control unit 21 so that the light source control unit 21 can control light emission of the light source 13. A light guide bundle (not shown) is inserted between the light source 13 and the illumination optical system 11 in the operation unit 15 and the insertion unit 10. Illumination light from the light source 13 is guided to the illumination optical system 11 through the light guide bundle, and is irradiated onto the subject from the illumination optical system 11.

  The return light of the illumination light reflected by the subject enters the objective optical system 12. An image guide 14 that guides the return light captured by the objective optical system 12 to the camera unit 20 is inserted into the operation unit 15 and the insertion unit 10. The camera unit 20 is provided with an image sensor 22 composed of a CCD, a CMOS, or the like. The object return light from the objective optical system 12 is guided to the imaging surface of the imaging element 22 by the image guide 14. Thus, the subject optical image is formed on the imaging surface of the imaging element 22.

  The imaging element 22 photoelectrically converts the subject optical image to obtain an imaging signal. This imaging signal is supplied to the video signal processing unit 23. The video signal processing unit 23 as a moving image data generation unit performs predetermined signal processing on the input image pickup signal to generate a video signal. The video signal processing unit 23 outputs the generated video signal to the moving image recording processing unit 24 and the observation screen generation unit 26.

  The moving image recording processing unit 24 includes a moving image compression unit 24a and a container file generation unit 24b. The moving image compression unit 24a converts the input video signal into, for example, H.264. The data is compressed by a predetermined encoding process such as H.264 and output to the container file generation unit 24b. The container file generation unit 24b generates a moving image file of a predetermined file format such as mp4 from the compressed moving image from the moving image compression unit 24a. The moving image recording processing unit 24 can supply the generated moving image file to the recording medium 25 and record it. As the recording medium 25, for example, a built-in memory such as a semiconductor memory built in the camera unit 20 and an external recording medium such as an SD card inserted in a card slot (not shown) provided in the camera unit 20 are used. You may make it use together.

  Note that the moving image recording processing unit 24 not only generates a moving image file based on the moving image of the endoscope obtained by the image pickup device 22 but also a still image based on the still image of the endoscope obtained by the image pickup device 22. An image file may be generated. In this case, the moving image recording processing unit 24 causes the recording medium 25 to record a moving image file and a still image file (hereinafter collectively referred to as an image file).

  The moving image recording processing unit 24 can manage recording on the recording medium 25, and can also delete, for example, an image file recorded on the recording medium 25.

  The observation screen generation unit 26 is provided with a video signal output from the video signal processing unit 23, that is, an endoscope live image obtained by being imaged by the imaging element 22, and displays the endoscope live image. The observation screen is generated. The observation screen generation unit 26 has a memory (not shown) that stores display data for displaying various displays (such as characters and icons) on the observation screen, and displays an observation screen in which various displays are superimposed on a live image. It can be generated. The observation screen generation unit 26 outputs the generated observation screen to the display switching unit 27.

  In addition to the observation screen from the observation screen generation unit 26, the display switching unit 27 is provided with a moving image reproduction screen and a moving image reproduction preparation screen described later. The display switching unit 27 selects one of an observation screen, a moving image reproduction screen, and a moving image reproduction preparation screen based on a user operation and outputs the selected screen to the display unit 20b.

  The display unit 20b configured by an LCD or the like displays an image input via the display switching unit 27 on the display screen 20d. A touch panel 28 is disposed on the display screen 20d. The touch panel 28 can generate an operation signal corresponding to the position on the display screen 20d pointed by the user with a finger. This operation signal is supplied to the touch panel operation detection unit 29. When the user touches or slides on the display screen 20d, the touch panel operation detection unit 29 can detect the operation. That is, the touch panel operation detection unit 29 detects various operations such as a user's touch position, an operation for closing and separating a finger (pinch operation), a position reached by a slide operation or a slide operation, a slide direction, and a touch period. be able to.

  The touch panel operation detection unit 29 controls each unit by outputting the detected operation result to each unit in the camera unit 20. Thereby, each part in the camera part 20 can perform the process based on a user's touch panel operation. For example, the display switching unit 27 performs a process of switching the screen to be displayed according to the detection result of the touch panel operation detection unit 29, and controls the image quality at the time of recording, the presence or absence of protection, and the like.

  The data reading unit 30 reads the image file recorded on the recording medium 25 in accordance with the operation result from the touch panel operation detecting unit 29. The data reading unit 30 outputs the read moving image and still image file to the moving image decoding unit 31, the index image acquisition unit 33, and the reproduction time acquisition unit 35.

  The video decoding unit 31 decodes the video read by the data reading unit 30 to restore the video signal before the video compression, and outputs the video signal to the video playback screen generation unit 32. Further, even when a still image is read by the data reading unit 30, the moving image decoding unit 31 decodes the read still image to restore a video signal before still compression, and sends it to the moving image reproduction screen generation unit 32. It is designed to output.

  The moving image reproduction screen generating unit 32 is given a video signal output from the moving image decoding unit 31, that is, a reproduction image obtained by reproducing an image file recorded on the recording medium 25, and displays the reproduced image on the display screen 20d. A video playback screen for display on the screen is generated. The video playback screen generation unit 32 has a memory (not shown) that stores display data for displaying various displays (characters) on the video playback preparation screen, and a video playback screen in which various displays are superimposed on the playback image. Can be generated. The moving image reproduction screen generation unit 32 outputs the generated moving image reproduction screen to the display switching unit 27.

  In order to reproduce the encoded image file in real time, it is necessary to manage the decoding timing of each frame data portion. Generally, time information is included in the image file. For example, a moving picture file in the MPEG2 format includes time stamp information such as DTS, PTS, and PCR. The reproduction time acquisition unit 35 can acquire the recording time (reproduction time) of each moving image using the time information included in the moving image file read by the data reading unit 30. The time information of each video file acquired by the playback time acquisition unit 35 is provided to the video playback screen generation unit 32 and the character data superimposition unit 36.

  In addition, although it has been described that the image file recorded on the recording medium 25 includes recording time (reproduction time) information, the endoscope image is recorded with the recording time (reproduction time) information associated therewith. The recording time (reproduction time) data may be recorded on the recording medium in association with the image file as long as it is recorded on the medium 25.

  In addition, the data reading unit 30 can give only the time information of each moving image file recorded on the recording medium 25 to the reproduction time acquisition unit 35. The moving image reproduction screen generation unit 32 can display a display indicating the recording time information from the reproduction time acquisition unit 35 on the moving image reproduction screen. The character data superimposing unit 36 as the time display superimposing unit can generate display data based on the time information from the reproduction time acquiring unit 35, for example, character data, and output the display data to the moving image reproduction preparation screen generating unit 34. It has become.

  The index image acquisition unit 33 generates an index image based on an image of a predetermined frame (for example, the first frame) included in the moving image file read by the data reading unit 30. The index image acquisition unit 33 outputs the generated index image to the moving image reproduction preparation screen generation unit 34. The index image acquisition unit 33 can output not only an index image for one moving image file but also a plurality of index images for a plurality of moving images. Further, the index image acquisition unit 33 acquires information on the file name, recording start time, and file number (frame number) of the image file from which the index image has been acquired, and outputs the information to the moving image playback preparation screen generation unit 34. It has become. Note that the index image acquisition unit 33 is not limited to generating an index image based on an image of a predetermined frame of the moving image file each time as described above, and acquires, for example, an index image recorded in advance in the moving image file. It may be a thing.

  The moving image reproduction preparation screen generation unit 34 is provided with the index image from the index image acquisition unit 33 and the data from the character data superimposition unit 36, and generates a moving image reproduction preparation screen to be displayed immediately before the moving image reproduction. Yes. The video playback preparation screen generation unit 34 has a memory (not shown) that stores display data for displaying various displays, and can generate a video playback preparation screen in which various displays are superimposed on the index image. It has become. Furthermore, in the present embodiment, the moving image reproduction preparation screen generation unit 34 can generate a moving image reproduction preparation screen in which a display indicating the reproduction time is superimposed on the index image based on the data from the character data superimposition unit 36. It is like that. The moving image reproduction preparation screen generation unit 34 outputs the generated moving image reproduction preparation screen to the display switching unit 27.

  Next, the operation of the embodiment configured as described above will be described with reference to FIGS. 3 to 6 are explanatory diagrams showing display examples of each screen displayed on the display screen. FIG. 3 shows an example of a movie playback preparation screen, FIG. 4 shows an example of a movie playback screen, and FIGS. 5 and 6 show examples of a movie playback preparation screen in multi-frame display.

  Now, it is assumed that the insertion portion 10 of the endoscope 1 is inserted into the subject and the subject is observed. When power is turned on to the camera unit 20 by operating the power switch 20e, the image sensor 22 is driven by a drive circuit (not shown) to take an image. That is, the optical image of the subject is formed on the imaging surface of the imaging element 22, and an imaging signal is output from the imaging element 22. This imaging signal is supplied to the video signal processing unit 23, and a video signal of an endoscopic image is generated.

  The output of the video signal processing unit 23 is supplied to the observation screen generation unit 26, and an observation screen including an endoscope live image is generated. This observation screen is supplied to the display unit 20b via the display switching unit 27. When the camera unit 20 is turned on, an observation screen is set as an initial screen, for example, and when the power is turned on by the power switch 20e, an observation screen including an endoscope live image is displayed on the display screen 20d of the display unit 20b. Is done.

  The surgeon can operate each unit of the operation unit 15 while observing the observation screen. For example, when the image recording mode is set to the moving image recording mode by the switch 19b, the surgeon operates the recording switch 19a to start recording and end recording of the moving image of the endoscopic image being observed. Instruct. The live image from the video signal processing unit 23 is also supplied to the moving image recording processing unit 24, and the moving image recording processing unit 24 starts recording the moving image of the endoscopic image by the operator's operation of the recording switch 19a. To do. That is, the moving image recording processing unit 24 encodes a moving image of the input endoscopic image and then starts recording on the recording medium 25 according to a predetermined file format. When the surgeon instructs the recording switch 19a to end the moving image recording, the moving image recording processing unit 24 converts the moving image being recorded into a file. In addition, when the recording mode is set to the still image mode by the mode switch 19b, a still image compression process such as JPEG is performed on the video output from the video signal processing unit 23 by operating the recording switch 19a. Still image data obtained by the recording is recorded on the recording medium 25.

  In this way, it is assumed that one or more moving image files are recorded on the recording medium 25. Here, it is assumed that the user performs a change operation for changing the mode from an observation mode in which an observation screen is displayed to a reproduction mode in which reproduction is performed. For example, the surgeon instructs to change the mode by an operation using the touch panel 28 with respect to the mode switching button 45 (see FIG. 3) displayed on the display screen 20d.

  When the touch panel operation detection unit 29 detects a mode switching operation by the user, the touch panel operation detection unit 29 outputs a detection result indicating that the mode is switched to the reproduction mode. When the playback mode is instructed by the touch panel operation detection unit 29, the data reading unit 30 reads a moving image file from the recording medium 25 and gives it to the index image acquisition unit 33 and the data reading unit 30. The index image acquisition unit 33 generates an index image based on the read moving image file and outputs the index image to the moving image reproduction preparation screen generation unit 34.

  In the present embodiment, the playback time acquisition unit 35 selects a video file to be played back, which is a screen displayed at a timing (for example, immediately before timing) before displaying a video playback screen for playing back a video. At the time of displaying the movie playback preparation screen, which is a screen that can be recorded, information on the recording time (playback time) included in the movie file is acquired from the movie file read by the data reading unit 30 and the character data superimposing unit 36 Output. The character data superimposing unit 36 generates display display data indicating the recording time (reproduction time) based on the information from the reproduction time acquisition unit 35, for example, display data indicating the recording time (reproduction time) in characters and reproduces the moving image. Output to the preparation screen generator 34.

  The moving image reproduction preparation screen generation unit 34 adds various displays to the index image and adds a display indicating a recording time (reproduction time) to generate a moving image reproduction preparation screen. When switching from the observation mode to the reproduction mode, the display switching unit 27 selects the moving image reproduction preparation screen instead of the observation screen and gives it to the display unit 20b. In this way, the moving image reproduction preparation screen is displayed on the display screen 20d of the display unit 20b.

  FIG. 3 shows a moving image reproduction preparation screen 40 in this case. On the moving image reproduction preparation screen 40, index images based on the moving image file read by the data reading unit 30 are displayed over the entire area, and various displays indicated by reference numerals 41 to 55 are displayed at the ends of the screen. A play button 57 is displayed in the center.

  The menu button 41 is for displaying various menus. When the surgeon performs a touch operation on the menu button 41, a menu screen generated by a menu screen generation unit (not shown) is displayed on the display screen 20d. For example, a display for performing various settings such as initial settings is performed on the menu screen. The delete button 42 is for deleting the image file from the recording medium 25. When the surgeon performs a touch operation on the delete button 42, the moving image recording processing unit 24 deletes the image file displayed as the index image from the recording medium 25.

  The playback file switching buttons 43 and 50 are used to switch an image file to be displayed as an index image. When the surgeon touches the playback file switching button 43, the data reading unit 30 reads the next moving image file from the recording medium 25 in the recording order, and a moving image reproduction preparation screen including an index image based on the image file. Is displayed. Also, when the surgeon touches the playback file switching button 50, the data reading unit 30 reads the previous moving image file in the recording order from the recording medium 25, and the moving image reproduction including the index image based on the image file is performed. The preparation screen is displayed.

  The display switching button 44 is for switching between single display and thumbnail display. When the surgeon touches the display switching button 44, there is a single-display video playback preparation screen that displays only a single index image and a thumbnail-display video playback preparation screen that displays a plurality of index images simultaneously. Switched. When displaying thumbnails, the data reading unit 30 reads a plurality of image files, and the index image etc. acquiring unit 33 generates a plurality of index images based on the read moving image files. The moving image reproduction preparation screen generation unit 34 generates a plurality of thumbnail images obtained by performing reduction processing on a plurality of index images, and generates a moving image reproduction preparation screen including the plurality of thumbnail images.

  FIG. 5 shows an example of a four-frame display in which four thumbnail images 71a are simultaneously displayed on the display screen 20d as a thumbnail-displayed moving image playback preparation screen, and FIG. 6 shows a thumbnail-displayed moving image playback preparation screen on the display screen 20d. An example of nine-frame display in which two thumbnail images 71b are displayed simultaneously is shown.

  In FIG. 5, four thumbnail images 71a are displayed simultaneously. In FIG. 6, nine thumbnail images 71b are displayed at the same time. In the example of FIG. 5, the page display 74 shows that the moving image playback preparation screen for the first page of all the pages is displayed. The four image files recorded on the recording medium 25 are displayed in the page display 74. It shows that the thumbnail image 71a based is displayed. FIG. 6 shows that the page display 74 displays the moving image playback preparation screen for the first one of the two pages. The number of images of 10 to 18 on the recording medium 25 is shown. An example in which a file is stored is shown. The moving image reproduction preparation screen is composed of two screens, and up to nine thumbnail images 71b can be displayed on one screen. By a touch operation on the screen switching button 75 or 76 displayed on the moving image reproduction preparation screen, a 2/2 page moving image reproduction preparation screen that is not displayed can be displayed.

  A single display based on an image file corresponding to the thumbnail image by touching one of the thumbnail images 71a and 71b displayed on the moving image reproduction preparation screen of FIGS. 5 and 6. The display can be returned to the moving image reproduction preparation screen 40. In addition, by touching one of the thumbnail images 71a and 71b, a moving image for directly reproducing an image file based on the thumbnail image without returning to the single-image moving image reproduction preparation screen. You may shift to the display of a playback screen.

  Further, display switching buttons 44a and 44b are displayed on the moving image reproduction preparation screens of FIGS. 5 and 6, and the moving image reproduction preparation screen shown in FIG. 3 is displayed by a touch operation on these display switching buttons 44a and 44b. It is also possible to return to the display of 40. Further, it may be possible to cyclically select single display, four-frame display, and nine-frame display by sequentially touching the display switching buttons 44, 44a, and 44b.

  In FIG. 3, a mode switching button 45 is for switching between a reproduction mode and an observation mode (endoscope live image display mode). When the surgeon performs a touch operation on the mode switching button 45, the moving image reproduction preparation screen 40 and the observation screen are switched.

  On the moving image reproduction preparation screen, a battery remaining amount display 46 indicating a remaining amount of a battery (not shown) built in the endoscope 1, a recording destination display 47, and a display 48 during reproduction are displayed. The recording destination display 47 indicates that the SD card is currently selected by the design. An image quality display 49 is also displayed on the moving image playback preparation screen. The image quality of the endoscopic image can be set by the drive circuit that drives the image sensor 22 and the video signal processing unit 23. For example, super high quality (SHQ) and high quality (HQ) can be set as the image quality, and the example of FIG. 3 shows that the image quality is SHQ.

  In addition, a touch operation on the protect setting display 51 displayed on the moving image playback preparation screen instructs to set or cancel the protection for the image file. A key mark (not shown) is displayed below the image quality display 49 for the image file for which protection is set. Further, a file name display 52, a recording start time display 53, and a file number (frame number) display 54 are displayed on the moving image reproduction preparation screen based on the output of the index image acquisition unit 33.

  In the present embodiment, a recording time display 55 is displayed on the moving image reproduction preparation screen. The recording time display 55 is based on the information acquired by the playback time acquisition unit 35. In the example of FIG. It can be seen that the recording time (reproduction time) is 3 minutes and 20 seconds for the moving image that has been started.

  In the present embodiment, as shown in FIGS. 5 and 6, a file number (frame number) display 73 and a playback time display 72 are also displayed on the thumbnail images 71a and 71b, respectively.

  In this way, on the video playback preparation screen at the stage before the screen (video playback screen) for displaying the playback image of the recorded video file is displayed, the user records the recording time (playback time) of the moving image to be played back. Can be confirmed.

  When the user performs a touch operation on the playback button 57, the touch panel operation detection unit 29 instructs the data reading unit 30, the video decoding unit 31, and the video playback screen generation unit 32 to play the video file on which the index image is currently displayed. At the same time, the display switching unit 27 is caused to select a moving image reproduction screen based on the moving image file and output it to the display unit 20b.

  FIG. 4 shows a moving image playback screen 60 displayed in this case. As shown in FIG. 4, the moving image playback screen 60 displays the selected moving image (not shown), and also includes a remaining battery level display 46, a recording destination display 47, a playback display 48 and an image quality display 49. It is displayed. A playback position display bar 65 indicating the current playback position is displayed below the moving image playback screen 60, and a position display 65a indicating the playback position is displayed in the playback position display bar 65. In addition, a playback position time display 66 indicating a playback time based on the recording start position is displayed on the left side of the playback position display bar 65, and a recording time display 67 indicating a recording time is displayed on the right side.

  In addition, a pause button 61, a fast reverse button 62, a fast forward button 63, and a stop button 64 are displayed below the moving image playback screen 60. When the user performs a touch operation on the pause button 61, the fast reverse button 62 or the fast forward button 63, the data reading unit 30, the video decoding unit 31, and the video playback screen generation unit 32 cause the playback image to be paused, fast reverse, Fast forward is performed. When the user performs a touch operation on the stop button 64, the reproduction of the reproduced image is stopped, and the moving image reproduction preparation screen from the moving image reproduction preparation screen generation unit 34 is selected by the display switching unit 27 and supplied to the display unit 20b. Is done. Thereby, it returns to the display of the moving image reproduction preparation screen 40 of FIG.

  As described above, in the present embodiment, a reproduction time acquisition unit that acquires recording time (reproduction time) information from the output of the data reading unit 30, and a character data superimposition unit that converts the output of the reproduction time acquisition unit into character data. In the moving image reproduction preparation screen generation unit, a display showing the recording time (reproduction time) of the image file recorded on the recording medium 25 is displayed at the timing before the moving image reproduction screen. Display on the screen. Thereby, the user can display the recording time (playback time) of the image before playback on the video playback preparation screen such as a screen that is displayed at a timing before the video playback screen is displayed and determines an image to be played back. Time) can be easily confirmed.

(Other examples)
FIG. 7 is a block diagram illustrating an observation screen generation unit employed in another example. FIG. 7 can be used instead of the observation screen generation unit 26 in FIG. 1, and in this example, the other configuration of the endoscope apparatus is the same as that in FIG. In general, on the display screen for displaying an endoscopic image such as an observation screen, various characters for displaying operation and various information are displayed in addition to the endoscopic image. ing. This example makes it possible to arbitrarily display or hide part or all of a character on an observation screen that displays an endoscopic image, for example. For example, in this example, the display of a part of the character is hidden after a predetermined time from the display of the observation screen, and the display of the part of the character is switched between display and non-display by a touch operation on the observation screen by the user. It has become.

  In the observation screen generation unit 80 in FIG. 7, the video signal from the video signal processing unit 23 in FIG. 1 is given to the first OSD circuit 81. The first OSD circuit 81 generates a video signal of an endoscopic live image by processing similar to that of the observation screen generation unit 26 in FIG. 1 and also outputs a video signal for displaying a first character group for information display. Generate and output to the synthesis circuit 83. The first OSD circuit 81 generates various characters of the first character group based on various information held in an internal memory (not shown) in the camera unit 20.

  On the other hand, in this example, a second OSD circuit 82 is provided, and various information stored in the internal memory is given to the second OSD circuit 82 and an endoscope still image of the recording medium 25 can be recorded. Information on the remaining number of sheets (remaining number of sheets) is also given. The second OSD circuit 82 generates each character of the second character group based on various pieces of input information. Data of each character of the second character group is supplied to the synthesis circuit 83 via the switch circuit 84.

  The synthesizing circuit 83 synthesizes the output of the first OSD circuit 81 and the output of the second OSD circuit 82 input via the switch circuit 84 to generate an observation screen and output it to the display switching unit 27. .

  In this example, the switch circuit 84 is controlled by the timer circuit 85 and the touch panel operation detection unit 29. The switch circuit 84 is on in the initial state. The timer circuit 85 measures the time from the start of display of the observation screen, and supplies a control signal for turning off the switch circuit 84 to the switch circuit 85 after a predetermined time has elapsed. When the touch panel operation detection unit 29 detects that an area other than the display area of each character of the second character group on the display screen 26a is touched during the display period of the observation screen, the touch panel operation detection unit 29 turns the switch circuit 84 from on to off. Alternatively, a control signal for switching from off to on is supplied to the switch circuit 85. Note that when the timer circuit 85 and the touch panel operation detection unit 29 control the switch circuit 84, the control by the touch panel operation detection unit 29 has priority.

  The operation of the example configured as described above will be described with reference to FIGS. 8 and 9 are explanatory diagrams showing display examples of the observation screen.

  When the power of the endoscope apparatus 1 is turned on, the first OSD circuit 81 generates an endoscope live image in which each character of the first character group is superimposed and outputs the endoscope live image to the synthesis circuit 83. Also, the second OSD circuit 82 generates each character of the second character group and outputs it to the synthesis circuit 83 via the switch circuit 84. In the initial state, the switch circuit 84 is on, and the combining circuit 83 combines the outputs of the first and second OSD circuits 81 and 82 to generate an observation screen. This observation screen is output to the display switching unit 27. In the initial state immediately after the power is turned on, the display switching unit 27 selects the output of the observation screen generation unit 80, and the observation screen generated by the observation screen generation unit 80 is displayed on the display screen 20d of the display unit 20b. The

  FIG. 8 shows an observation screen in this case, and the observation screen has a substantially circular region displaying the endoscope live image 90 in the center. Further, in the four areas at the corners of the display screen 20d outside this area, the menu button 41, the mode switching button 45, the brightness display 91 indicating the brightness of the image, and the recording medium 25 are recorded. A possible still image remaining number display 92 is displayed. In the left corner of the display screen 20d, a recording indicating the currently set recording mode among the recording modes of the moving image / still image that can be switched by the battery remaining amount display 46, the recording destination display 47, and the switch 19b. A mode display 48b is also displayed.

  Among these displays, the battery remaining amount display 46, the recording destination display 47, and the recording mode display display 48b are the characters of the first character group by the first OSD circuit 81, and the menu button 41, the mode switching button 45, the brightness display. 91 and the remaining number display 92 are characters of the second character group by the second OSD circuit 82.

  Here, it is assumed that a predetermined time has elapsed from the start of display of the observation screen shown in FIG. Then, the timer circuit 85 generates a control signal that turns off the switch circuit 84. Thereby, the switch circuit 84 is turned off, and the display data of each character of the second character group is not supplied to the combining circuit 83 and is not combined with the observation screen.

  In this case, the observation screen shown in FIG. 9 is displayed. As shown in FIG. 9, only the endoscope live image 90, the battery remaining amount display 46, the recording destination display 47, and the live display 48b are displayed on the observation screen, and the menu button 41, the mode switching button 45, The brightness display 91 and the remaining number display 92 are not displayed.

  Usually, in the observation mode, the operator concentrates on observing an endoscope live image, and it is better not to display characters that are not necessary. The display of unnecessary characters is not displayed after a predetermined time from the display of the observation screen, and the surgeon tends to concentrate on the endoscope live image.

  Here, it is assumed that the surgeon wishes to switch from the observation screen to the moving image playback preparation screen. Since the mode switching button 45 is not displayed on the observation screen shown in FIG. 9, in order to display the mode switching button 45, the surgeon touches a favorite position on the display screen 20d. By this touch operation, the touch panel operation detection unit 29 generates a control signal for turning on the switch circuit 84 that is turned off. As a result, the switch circuit 84 is turned on, and the display data of each character of the second character group from the second OSD circuit 82 is supplied to the combining circuit 83, and each character of the second character group is displayed on the observation screen.

  Thus, the observation screen shown in FIG. 8 is displayed. The surgeon can switch the display from the observation screen to the moving image reproduction preparation screen by touching the displayed mode switching button 45. When the surgeon touches an area other than the display area of each character in the second character group during the display of the observation screen of FIG. 8, the touch panel operation detection unit 29 turns off the switch circuit 84. This switches to the display of the observation screen of FIG.

  As described above, in this example, unnecessary display can be hidden after a predetermined time from the start of display of the observation screen, and display / non-display of unnecessary display can be easily switched by a user's touch operation on the screen. be able to. Since the display can be performed only when necessary, the user can concentrate on the live endoscope image and can confirm and operate the information by the display when necessary.

    DESCRIPTION OF SYMBOLS 1 ... Endoscope apparatus, 10 insertion part, 15 ... Operation part, 20 ... Camera part, 20b ... Display part, 22 ... Image sensor, 23 ... Video signal processing part, 24 ... Movie recording processing part, 25 ... Recording medium, 26 ... Observation screen generation unit, 27 ... Display switching unit, 28 ... Touch panel, 29 ... Touch panel operation detection unit, 30 ... Data reading unit, 31 ... Video decoding unit, 32 ... Video playback screen generation unit, 33 ... Acquisition of index images, etc. 34, a moving image reproduction preparation screen generation unit, 35 ... a reproduction time acquisition unit, 36 ... a character data superimposition unit.

Claims (5)

An endoscope having an imaging unit for imaging a subject;
A moving image data generation unit that generates moving image data representing a moving image of the subject imaged by the imaging unit;
A recording processing unit that records time data representing a recording time of the moving image data generated by the moving image data generation unit in a recording medium in association with the moving image;
A moving image reproduction preparation screen generation unit for generating a moving image reproduction preparation screen for starting reproduction of moving image data recorded in the recording medium;
The time data corresponding to the moving image of the reproduction candidate displayed on the moving image reproduction preparation screen is acquired, and a display representing the recording time of the moving image of the reproduction candidate is superimposed on the reproduction preparation screen based on the time data A time display superimposing unit,
An endoscope apparatus comprising:   The moving image reproduction preparation screen generation unit displays one thumbnail image based on one frame of still image extracted from one moving image data selected as a reproduction candidate by the user from the moving image data recorded on the recording medium. The endoscope apparatus according to claim 1, wherein:   The video playback preparation screen generation unit superimposes and displays a playback start button for receiving a video data playback instruction from a user on the thumbnail image corresponding to the playback candidate moving image. Item 5. The endoscope apparatus according to Item 2. The moving image reproduction preparation screen generation unit is a screen that displays a list of a plurality of thumbnail images based on one frame of still images extracted from each moving image data recorded on the recording medium,
The endoscope apparatus according to claim 1, wherein the time display superimposing unit superimposes character information representing a recording time of each moving image on each thumbnail image displayed in the list. .   2. The display unit according to claim 1, further comprising a display unit capable of displaying a live image of the subject imaged by the imaging unit, the moving image reproduction preparation screen, and a moving image reproduced based on the moving image data. The endoscope apparatus described.

Images