JP2010131224A - Inspection image display apparatus, inspection image display system, inspection image display method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the surrounding visibility of an inspection image during rolling up display to be made inconspicuous. <P>SOLUTION: Before rolling up display, four sheets of continuous inspection images N1-N4 are displayed with putting side by side as two lines and two rows. During four sheets display, one sheet of the inspection image N2 is designated and rolling up display is indicated. The inspection image N2 is set to a rolling up starting inspection image and inspection images following this are taken out of inspection image rows and are displayed on a screen 25a one by one at a predetermined rate. During this rolling up display, the inspection images N1, N3 and N4 stand still in the status that luminance is reduced. If the rolling up display is suspended, returning again to four sheets display is performed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an inspection image display device, an inspection image display system, an inspection image display method, and a program for displaying an inspection image used for medical diagnosis.

  In recent years, in the medical field, the number of inspection images has become enormous with the advancement of image capturing devices. In particular, since a multi-slice CT apparatus collects tomographic images of a plurality of slices simultaneously during one rotation, the number of examination images obtained from a patient by one imaging is considerably large.

  When there are a large number of inspection images in this way, it is generally performed to efficiently interpret images by simultaneously arranging and displaying a plurality of inspection images on a monitor screen. For example, a lesion or the like is found by comparing consecutive tomographic images of the same patient side by side or comparing past inspection images of the same patient and current inspection images side by side.

  In addition, when a large amount of tomographic images can be obtained as in multi-slice CT, the tomographic images are continuously switched to the same place on the screen and sequentially displayed so that the interpreting doctor can create a three-dimensional model in the head. Interpretation is also performed while imaged. In this way, a method of switching and displaying a plurality of inspection images in the same place is called turn-over display.

Patent Document 1 describes a medical image display device having a curling display function. In this medical diagnostic image display apparatus, a plurality of, for example, four tomographic images are arranged in 2 rows and 2 columns and displayed simultaneously on a screen such as a CRT. By tilting the key of the joystick-type variable adjuster, a desired one is designated from the four diagnostic images depending on the direction of the key, and the speed of the display is set by the amount of rotation of the key. When the start key of the variable adjuster is operated, the curling display is started at the designated display position of the tomographic image, and the tomographic images are sequentially switched and displayed at a predetermined speed. During this turning display, the remaining three tomographic images are displayed as still images as they are.
Japanese Patent Laid-Open No. 2002-301065

  However, when the display is turned from a state in which a plurality of inspection images are displayed on the screen, other inspection images around the inspection image currently being displayed are continuously displayed. There is a problem that the doctor cannot pay attention to the inspection image being displayed. In particular, when detailed interpretation is required and the display brightness is increased, or when the inspection image is marked with color as incidental information, if other inspection images enter the field of view, it is large during interpretation. Hinder.

  In addition, if an inspection image that you want to focus on is found in the middle of the display, and the display is stopped, the other inspection images are the ones at the start of the display of the display. There was a problem that it was difficult.

  In addition, when tomographic images are read, a plurality of inspection images initially displayed on the screen are continuous images from one end, and when a large amount of tomographic images are obtained as in multi-slice CT, the display is turned over. It took a long time to advance to the inspection image that you want to start, which is inefficient.

  The present invention has been made in view of the above problems, and an object of the present invention is to perform a curl display that does not interfere with the field of view of interpretation when performing curl display from a state in which a plurality of inspection images are displayed.

  Another object of the present invention is to enable comparative interpretation similar to that before the display of the turn even after the end of the display of the turn.

  Furthermore, an object of the present invention is to improve the efficiency of image interpretation by enabling quick arrival at a start-up inspection image.

  In order to achieve the above object, an inspection image display apparatus according to the present invention includes first display control means for extracting N (at least two or more) inspection images from an inspection image sequence, and displaying them side by side on the display means. A turn display instruction means for instructing execution of display, and when execution of turn display is instructed, one of N inspection images is turned as a start inspection image, and a subsequent inspection image is taken out from the inspection image sequence. Second display control means for sequentially displaying on the display means, and a visibility lowering means for displaying the periphery of the inspection image being turned on and displayed on the display means in a state that is less visible than the inspection image being turned. It is characterized by having.

  Further, the visibility lowering means is characterized in that the periphery is displayed with a lower brightness compared to the inspection image being displayed.

  Further, the visibility lowering means enlarges and displays the inspection image that is being displayed so as to cover at least a part of the periphery.

  Further, the visibility lowering means enlarges and displays the inspection image being turned over so as to cover at least a part of the periphery, and has a lower luminance than the inspection image being turned over. It is characterized by being displayed.

  Further, the N inspection images displayed at the same time and the inspection image currently being displayed are continuously extracted from the inspection image sequence.

  Further, the N inspection images displayed at the same time are taken out at a predetermined interval on the inspection image sequence, and the inspection images being turned up are continuously taken out from the inspection image sequence.

  Further, the first display control means takes out (N−1) inspection images from the inspection image sequence with reference to the inspection image displayed at the end time, and displays it on the display means when the flip display is ended. It is characterized by displaying.

  In addition, the image forming apparatus includes a designation unit that designates the turning start inspection image.

  Further, N is 9, and 9 inspection images are arranged in 3 rows and 3 columns, and when execution of turning display is instructed, the inspection image located at the center becomes the turning start inspection image. To do.

  Further, the first display control means is characterized in that N inspection images are taken out from each of the plurality of inspection image sequences, and are simultaneously displayed on the display means in a state separated from each inspection image sequence.

  The inspection image display method of the present invention takes out N inspection images from the inspection image sequence, arranges them on the display means and displays them simultaneously, and when one of the N inspection images is instructed to execute turning display, As a starting inspection image, a subsequent inspection image is taken out from the inspection image sequence and sequentially displayed on the display means, and the periphery of the inspection image currently being displayed is compared with the inspection image currently being displayed visually. And a step of displaying on the display means in a state in which the performance is lowered.

  The inspection image display system of the present invention is an inspection image display system comprising a server storing an inspection image sequence and an inspection image display device connected via a communication network. The inspection image display device includes a display means, a server First inspection control means for taking out N inspection images from the inspection image sequence fetched from the image data and displaying them side by side on the display means, curling display instruction means for instructing execution of curling display, execution of curling display is instructed A second display control means for taking one of the N inspection images as a start inspection image and taking out the subsequent inspection image from the inspection image sequence and sequentially displaying it on the display means; Visibility reduction means for displaying the periphery of the inspection image on the display means in a state in which the periphery of the inspection image is less visible compared to the inspection image being turned upside down.

  The inspection image display program of the present invention accepts a function of taking out N inspection images from the inspection image sequence stored in the image storage memory, arranging them on the display means, and displaying them simultaneously, and an instruction to execute the flip display from the operation unit. A function and a function of taking one of the N inspection images as a start inspection image, taking out the subsequent inspection image from the inspection image sequence, and sequentially displaying the inspection image on the display unit when execution of turning display is instructed; The computer realizes the function of displaying the periphery of the inspection image being displayed on the display means in a state where the visibility is lower than that of the inspection image being displayed.

  According to the present invention, since the visibility in the vicinity of the curl display position is reduced, it is easy to fix the viewpoint at the curl display position, and the surrounding image does not get in the way, so that the interpretation efficiency can be improved.

  Furthermore, when the inspection image being displayed in a large size is displayed in a large size, it is easy to interpret and the oversight of the lesion can be prevented.

  Further, when the curl display is finished, (N-1) test images are taken out from the test image sequence based on the test image at the end of the curl display, and the test images around the curl display position are displayed and updated. Therefore, it is possible to continue the interpretation in the same state as before the page display. In particular, when N inspection images are taken out and displayed in succession, it is possible to perform interpretation while comparing a plurality of continuous inspection images after turning the display, improving usability.

  Furthermore, by acquiring N inspection images displayed before the curling display from the inspection image sequence at a predetermined interval, even if there are a large number of inspection images, it is estimated that there is a lesion or the like. In order to quickly reach the inspection image to be displayed, it is possible to shorten the time to find the lesion and improve the interpretation efficiency.

(First embodiment)
FIG. 1 shows a schematic configuration of a radiation imaging system including an inspection image display device 2 according to the present invention. In the present embodiment, a modality 1 for acquiring a medical examination image such as a radiographic image and an imaging condition for controlling the modality 1 when acquiring the examination image are input, and the taken examination image is verified. Console 3, a server 4 for storing a photographed examination image for a certain period of time, and an examination image display device 2 for displaying and interpreting an examination image stored in server 4, which are connected to in-hospital LAN 5. It is connected.

  When imaging a patient with a radiography system, a doctor or a radiographer operates the console 3 to set imaging conditions such as imaging time and radiation dose, and input a patient ID such as a patient name. When the modality 1 is a multi-slice CT apparatus, a lot of photographed inspection images are sent to the console 3. The console 3 assigns a frame number (file number) to each inspection image and records it on the hard disk.

  A large number of inspection image groups photographed in one inspection are recorded on the hard disk. As shown in FIG. 2, this inspection image group constitutes an inspection image sequence 8 arranged in the order of photographing based on the frame number. After confirming the examination image on the console 3, the examination image sequence 8 together with the patient ID is transmitted to the image storage server 4 and saved in the image database. The server 4 stores test image sequences 8 of a plurality of patients classified for each patient, each photographing date and time, and the like so as to be searchable.

  At the time of image diagnosis, a patient ID to be diagnosed is first input to the examination image display device 2. Based on this patient ID, the image database of the server 4 is searched, and the corresponding examination image sequence 8 is read from the server 4 and taken into the examination image display device 2 via the in-hospital LAN 5. The interpretation doctor performs comparative interpretation while frame-by-frame inspection image sequence 8 or makes a diagnosis of a lesion or the like by scribbling from a specific inspection image.

  In FIG. 3 which shows the outline of the examination image display device 2, the communication IF 21 is connected to the hospital LAN 5, transmits the patient ID to the server 4, and receives the examination image sequence 8 from the server 4. The received inspection image sequence 8 is stored in the image memory 22.

  The control unit 23 is constituted by a CPU, and a single image display control unit 231, a four image display control unit 232, a visibility reduction unit 233, and a screen display control by an inspection image display program stored in a ROM (not shown). The unit 234 functions. The single sheet display control unit 231 displays one inspection image in a large size on a screen (display screen) 25a (see FIG. 1) of the display unit 25. The four-sheet display control unit 232 arranges the four inspection images in 2 rows and 2 columns and displays them on the screen 25a. In addition, the four-sheet display control unit 232 scrolls by four sheets in frame advance.

  Since the four-frame scrolling is fast in frame advance, it is possible to reach an inspection image in which the interpretation is completed in a short time or the turning display is started (the turning start inspection image) in a short time. Note that when scrolling in units of 4 frames, the image is displayed in units of 4 frames, so the fractional image may not be compared with the previous and subsequent inspection images, so the screen is scrolled one by one in the 4 screen display state. May be. Further, the number of inspection images to be simultaneously displayed on the screen 25a may be any number such as two or six.

  The turning display control unit 234 turns the inspection image at the designated position from the four inspection images displayed at the same time as a turning start inspection image, and sets the inspection image subsequent to the inspection image sequence 8 to a predetermined speed. Are displayed in order. The visibility reducing unit 233 reduces the visibility so that the stationary inspection image is not obstructed during the curling display.

  The V-RAM 26 temporarily stores one inspection image or an image obtained by combining four inspection images. The image stored in the V-RAM 26 is sent to the display unit 25 and displayed on the screen 25a. As the display unit 25, a high-luminance CRT, a liquid crystal display, a plasma display, or the like is used. Note that a projector is used as the display unit 25 when making a diagnosis with a plurality of image interpretation doctors.

  The operation unit 24 includes a keyboard 241, a mouse 242, and the like, and instructs to fetch the inspection image sequence 8, switch the display of the inspection image, and execute the flip display. Note that a joystick or the like may be used as the operation unit 24.

  Next, the operation of the first embodiment will be described with reference to FIGS. First, the patient ID is input by operating the keyboard 241 of the examination image display device 2. The image database of the server 4 is searched, the corresponding examination image sequence 8 is read, and the examination image sequence 8 is taken into the image memory 22 via the hospital LAN 5 and the communication IF 21. When there are a plurality of examination image sequences 8 with different imaging dates for the same patient, for example, a title is displayed with the imaging date, patient name, etc. as a headline, and a desired one of them is displayed. The operation unit 24 is used for selection.

  Since the four-sheet display control unit 232 is normally operated, the inspection images of the frame numbers 1 to 4 are read from the inspection image sequence 8 in the image memory 22 and synthesized on the V-RAM 26. As shown in FIG. 5, it is displayed in 2 rows and 2 columns on the screen 25a of the display unit 25 (step S1). The four inspection images are preferably arranged in order from the upper left to the lower right, but may be arranged in order from the upper right to the lower left.

  When the shift key of the keyboard 241 is operated, frame advance is performed in units of four frames, and an inspection image with frame numbers 5 to 8 is displayed on the screen 25a. While performing frame-by-frame increments of 4 sheets, comparative interpretation is performed to diagnose the lesion.

  When it is desired to observe a certain inspection image carefully while displaying four images, the keyboard 241 is operated to select one image display. Next, after pointing the pointer 62, the mouse 242 is clicked to specify an inspection image to be observed. When the single-sheet display is selected, the single-sheet display control unit 231 starts operation, and displays the designated inspection image on the screen 25a with a size four times as large. When the four-sheet display is selected by operating the keyboard 241 during the one-sheet display, the four-sheet display control unit 232 is activated to display the original four inspection images.

  Next, the curling display will be described. In FIG. 5, the inspection images N1 to N4 that are continuous on the inspection image sequence 8 are displayed on the screen 25a. In the case where the display is turned in this state, the mouse 242 is clicked after the pointer 62 is set to the turn display button 63 displayed as “CINE”. The page display control unit 234 determines that the page display is selected by clicking the mouse 242 (step S2).

  Next, the mouse 242 is clicked after the pointer 62 is set on the inspection image to be displayed in a roll, for example, the inspection image N2. The page display control unit 234 determines the start inspection image by turning the inspection image N2 (step S3).

  When the turning start inspection image is designated, the visibility lowering unit 233 operates, and as shown in FIG. 6, the brightness of the three inspection images N1, N3, and N4 around the periphery is compared with the inspection image N2. Display with low luminance (step S4). FIG. 6 shows a portion where luminance is lowered by adding dots. As a result, the periphery becomes inconspicuous, and the image interpretation doctor can fix the viewpoint at the turning position where the turning start examination image N2 is located. This reduction in luminance is performed by reducing the value of the pixel signal for the three inspection images N1, N3, and N4 or by combining and displaying a gray image on the three inspection images N1, N3, and N4. . The pixel signal value may be minimized and displayed in black. Note that the brightness of the screen frame 61 may be reduced along with the inspection images N1, N3, and N4 as the periphery of the inspection image that is being displayed in a curled display.

  When the mouse 242 is clicked after the pointer 62 is set to the start button 64 after the turning start inspection image is designated, the turning display control unit 234 turns the position where the inspection image N2 is displayed as shown in FIG. (Turning display area), and turning display is started on this turning position (step S5). In this turning display, inspection images N3, N4,... Following the turning start inspection image N2 are read from the image memory 22 and sequentially displayed on the screen 25a at a predetermined speed on the inspection image sequence 8 shown in FIG. During this turning display, the inspection images N1, N3, and N4 are stationary with the brightness reduced. The image interpretation doctor diagnoses the presence and position of a lesion while imaging a three-dimensional image from the examination image currently being displayed.

  When the display is finished, the mouse 242 is clicked after setting the pointer 62 to the stop button 65 (step S6). When the stop button 65 is clicked, the turn display control unit 234 stops operating, and the four-sheet display control unit 232 operates instead. When the stop button 65 is not operated, the display is automatically stopped when the inspection image at the end of the inspection image sequence 8 is reached.

  As shown in FIG. 7, when the end of the flip display is instructed when the inspection image N20 is displayed, the four-sheet display control unit 232 displays the three inspection images N19 and N21 that follow the inspection image N20. , N22 are taken out from the image memory 22. Then, the inspection images N19, N21, and N22 are combined with the inspection image N20 in place of the stationary inspection images N1, N3, and N4, and the four inspection images N19 to N22 are displayed on the screen 25a in a predetermined bright state. (Step S7). As a result, the display returns to the four-sheet display, so that comparative interpretation can be continued while frame-by-frame advancement according to the procedure described above.

(Second Embodiment)
FIG. 8 and FIG. 9 show a second embodiment in which the scroll display area is enlarged and displayed. In this embodiment, the visibility reduction unit 233 enlarges the curl display area and displays the inspection image being curled in a large size (step S14). Thereby, since some inspection image N1, N3, N4 which exists in the periphery is covered, the visibility can be reduced. Note that steps S11 to S13 and S15 to S18 in FIG. 8 are substantially the same as steps S1 to S7 shown in FIG.

  Even if only the enlarged display area is enlarged so that a part of the periphery is covered, it is effective to reduce the visibility of the periphery, but in this embodiment, as shown by dots in FIG. 9, the brightness of the periphery is reduced. To make it less noticeable. The inspection image N2 may be enlarged so as to cover part of the screen frame 61, or the inspection image N2 may be enlarged so as to cover all of the inspection images N1, N3, and N4.

(Third embodiment)
In the third embodiment shown in FIG. 10, nine consecutive inspection images are arranged in 3 rows and 3 columns and displayed on the screen 25a, and the inspection image at the center thereof is set as the turning start inspection image. . In this case, a nine-sheet display control unit is provided in the control unit 23 shown in FIG.

  In this embodiment, when the turning display button is clicked with the mouse 242, the inspection image N5 located at the center is enlarged, and the surrounding brightness is lowered before turning display is executed. When the curling display is terminated, the stop button 65 is clicked.

  Since nine inspection images are displayed on the screen 25a, the size of each inspection image is small. However, since the image is enlarged during the curling display, it is easy to observe. Note that since the inspection image being displayed in an enlarged manner is enlarged, a certain degree of visibility can be ensured without lowering the surrounding luminance.

(Fourth embodiment)
In each of the above embodiments, during the display of four images, four consecutive inspection images are displayed on the screen 25a. In this case, since the examination images with the frame number “1” are displayed in order, it is predicted that a lesion is present, and it takes time to reach the examination image of the part that has been displayed in a curled manner. Therefore, in this embodiment, as shown in FIG. 11, inspection images of N (i), N (i + n), N (i + 2n), and N (i + 3n) are extracted from the inspection image sequence 8 at intervals of n. The obtained four inspection images are displayed side by side on the screen 25a.

  During the display of the four images, the frames are advanced in units of four images, and for example, four inspection images of N (i + 4n), N (i + 5n), N (i + 6n), and N (i + 7n) are displayed. Thereby, frame advance can be performed quickly.

  During the display of the four images, the turning display can be executed by designating the turning start inspection image as in the first embodiment. For example, as in FIG. 6, when N (i + 5n) displayed on the upper right of the screen 25a is designated as the turning start inspection image, N (i + 5n + 1), N (i + 5n + 2), N (i + 5n + 3), Are sequentially displayed at a predetermined speed. In this case, the inspection images N (i + 4n), N (i + 6n), and N (i + 7n) located in the periphery are stationary with reduced brightness.

  For example, when the rolling display is stopped when the inspection image of N (i + 5n + k) is displayed, the inspection images of N (i + 4n + k), N (i + 6n + k), and N (i + 7n + k) are inspected based on N (i + 5n + k). It is taken out from the column 8 and displayed as four inspection images together with N (i + 5n + k).

  After the curling display, it may be more convenient to compare and interpret four consecutive inspection images. Therefore, when N (i + 5n + k) is set as the flipped display end inspection image, N (i + 5n + k−1), N (i + 5n + k + 1), and N (i + 5n + k + 2) inspection images are taken out and four consecutive inspection images are displayed. Also good.

(Fifth embodiment)
In some cases, diagnosis may be facilitated by taking out inspection images from a plurality of inspection image sequences, displaying them side by side, and comparatively interpreting them. As shown in FIG. 12, two consecutive examination images are taken out from two kinds of examination image sequences 30 and 31 of the same patient with different photographing dates, and are displayed on the screen 25a. In FIG. 13, two inspection images N1 and N2 taken out from the inspection image row 30 are displayed side by side in the vertical direction, and two inspection images M1 and M2 taken out from the inspection image row 31 are displayed horizontally in the vertical direction. Are displayed side by side. Note that two inspection images in the same inspection image sequence may be arranged in the horizontal direction.

  In this embodiment, since the turning position is designated on the first line, when the mouse 242 is clicked after the pointer is placed on the turning display button 63, the turning display starts at two positions of the inspection images N1 and M1. Is done. During this turning display, the inspection images N2 and M2 in the second row are stationary with reduced brightness.

  In this flip display, one continuous inspection image is taken out from each of the two inspection image rows 30 and 31 and displayed at a predetermined speed. Note that when the stop button 65 is clicked, the curling display of the two inspection image rows 30 and 31 is simultaneously stopped. After the end of the display, the next inspection image following the inspection image in the first row is taken out from each inspection image row 30, 31 and displayed in the second row as a predetermined bright inspection image.

  The two types of test image sequences 30 and 31 may be a test image sequence 30 of a healthy person and a test image sequence 31 of a patient who requires interpretation. Furthermore, although two images are taken out from each of the inspection image rows 30 and 31, any number of images such as one, three, and four images may be used.

  In each of the above-described embodiments, when turning is displayed, the direction of turning is the forward direction (the direction in which the frame number increases), but the reverse direction following the turning start inspection image (the direction in which the frame number decreases) is also possible. A button for designating the turning direction may be displayed on the screen 25a.

  Further, the start button 64 may be omitted, and instead the turn display may be performed when the turn start inspection image is double-clicked with the mouse 242, or the turn display button 63 may be omitted and the start button 64 may be pressed. At the same time, it is also possible to execute a scrolling display. Further, the turning speed may be arbitrarily set by the operation unit 24. Further, it is possible to adopt a configuration in which the turning display is automatically stopped when a predetermined number of sheets are displayed.

  Further, when the rotation of the wheel of the mouse 242 is started, the turning display is started, and the turning direction (forward direction, reverse direction) may be designated by the rotation direction, and the turning display is performed from the rotation speed. The speed may be determined. In this case, the whirling display stops when the rotation of the wheel is stopped. In this case, the inspection image on which the pointer of the mouse 242 is hit may be used as the turning inspection image.

  In addition, each time the mouse 242 is clicked once or each time a key is pressed, the inspection image may be displayed one by one.

  The inspection image display device 2 fetches the inspection image sequence 8 from the server 4 and stores it in the image memory 22. Instead of this, an inspection image to be displayed on the screen 25a may be designated and taken out from the inspection image sequence 8 in the server 4 each time. In this way, the capacity of the image memory 22 can be reduced.

  The inspection image is not limited to a medical inspection image, but may be an image taken in an industrial application for non-destructive internal inspection of equipment products, materials, and the like. In this case, as the inspection image sequence, the tomographic image for each device product and material is inspected by turning display, and an abnormal part is determined.

It is a block diagram of a radiography system. It is explanatory drawing which shows the test | inspection image sequence image | photographed with the radiography system. It is a block diagram which shows an example of the test | inspection image display apparatus of this invention. It is a flowchart which shows the display procedure of the test | inspection image in 1st Embodiment of this invention. It is a figure which shows the display state before curling display. It is a figure which shows the display state during a curling display. It is explanatory drawing which shows a curling display. It is a flowchart which shows the display procedure of the test | inspection image in 2nd Embodiment of this invention. It is a figure which shows the display state in the middle of the display in the 2nd Embodiment of this invention. It is a figure which shows the display state in the middle of a whirling display in 3rd Embodiment of this invention. It is explanatory drawing which shows extraction of the test | inspection image in 4th Embodiment of this invention. It is explanatory drawing which shows two types of test | inspection image sequences used for 5th Embodiment of this invention. It is a figure which shows the display state in the middle of a display in the 5th Embodiment of this invention.

Explanation of symbols

2 Inspection image display device 25a Screen 62 Pointer 63 Turn display button 64 Start button 65 Stop button

Claims (13)

In the inspection image display device for displaying the inspection image on the display means,
First display control means for extracting N (at least two or more) inspection images from the inspection image sequence and displaying them side by side on the display means;
A turn display instruction means for instructing execution of the turn display;
When the execution of the flip display is instructed, a second inspection image is taken out from the inspection image sequence as one of the N inspection images as a start inspection image, and is sequentially displayed on the display means. Display control means,
An inspection image display device comprising: a visibility lowering unit that displays on the display unit the periphery of the inspection image that is being displayed in a state that is less visible than the inspection image that is being displayed in a turned state.   The inspection image display device according to claim 1, wherein the visibility lowering unit displays the periphery with a lower luminance than the inspection image being displayed in a flipped state.   The inspection image display device according to claim 1, wherein the visibility lowering unit enlarges and displays the inspection image that is being displayed so as to cover at least a part of the periphery.   The visibility lowering means enlarges and displays the inspection image being turned over so as to cover at least a part of the periphery, and reduces the periphery of the inspection image being turned over compared to the inspection image being turned over. 2. The inspection image display device according to claim 1, wherein the inspection image display device displays the brightness.   5. The inspection image display device according to claim 1, wherein the N inspection images displayed simultaneously and the inspection image being turned are continuously extracted from the inspection image sequence.   The N inspection images displayed at the same time are taken out at a predetermined interval on the inspection image sequence, and the inspection images being turned are continuously taken out from the inspection image sequence. Item 5. The inspection image display device according to any one of Items 1 to 4.   The first display control means takes out (N-1) inspection images from the inspection image sequence based on the inspection image displayed at the end time when the turning display ends, and 7. The inspection image display device according to claim 1, wherein the inspection image display device displays the image on a display means.   8. The inspection image display device according to claim 1, further comprising a specifying unit that specifies the turning start inspection image.   N is 9, and 9 inspection images are arranged in 3 rows and 3 columns, and when the execution of turning display is instructed, the inspection image located at the center becomes the turning start inspection image. The inspection image display device according to claim 1.   The first display control means extracts N inspection images from each of a plurality of inspection image sequences, and simultaneously displays them on the display means in a state separated from each inspection image sequence. The inspection image display device according to any one of Items 8 to 8. Extracting N inspection images from the inspection image sequence, arranging them on the display means, and displaying them simultaneously;
A step of turning one of the N inspection images as a start inspection image when instructed to perform a flip display, taking out the subsequent inspection image from the inspection image sequence, and sequentially displaying it on the display means; ,
An inspection image display method comprising: displaying the periphery of the inspection image currently being displayed on the display unit in a state where the visibility is lower than that of the inspection image currently being displayed. In an inspection image display system comprising a server storing an inspection image sequence and an inspection image display device connected via a communication network,
The inspection image display device includes:
Display means;
First display control means for taking out N inspection images from the inspection image sequence fetched from the server and displaying them side by side on the display means;
A turn display instruction means for instructing execution of the turn display;
When the execution of the flip display is instructed, a second inspection image is taken out from the inspection image sequence as one of the N inspection images as a start inspection image, and is sequentially displayed on the display means. Display control means,
An inspection image display system, comprising: a visibility lowering unit that displays on the display unit the periphery of the inspection image that is being displayed in a state that is less visible than the inspection image that is being displayed in a turned state. A function of taking out N inspection images from the inspection image sequence stored in the image storage memory, arranging them on the display means, and displaying them simultaneously;
A function of accepting an instruction to execute the display from the operation unit;
A function of taking one of the N inspection images as a start inspection image, taking out the subsequent inspection image from the inspection image sequence, and sequentially displaying it on the display means, when execution of turning display is instructed;
An inspection image display program for causing a computer to realize a function of displaying the periphery of an inspection image being displayed on the display unit in a state where visibility is lower than that of the inspection image being displayed.

Images