Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
  • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
  • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
  • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
  • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
  • G01N23/18—Investigating the presence of flaws defects or foreign matter

Definitions

• non-destructive testing is carried out using images of the test object taken of the test object.
• the position and size of flaws in the weld of the test object are detected from image data showing the distribution of the transmitted intensity of radiation.
• non-destructive testing method that evaluates defects in an object to be inspected based on defects present within a specified gauge. For example, in inspections based on standards such as JIS (Japanese Industrial Standards) and ISO (International Organization for Standardization), an image of the object to be inspected obtained by photographing the object is superimposed on a gauge that defines the test range, and defects in the object to be inspected are evaluated based on defects within the gauge. In this type of evaluation, adjusting the position of the gauge is a detailed task, which can lead to problems such as a heavy burden on the user performing the evaluation and reduced inspection efficiency.
• JIS Japanese Industrial Standards
• ISO International Organization for Standardization
• This disclosure has been made in consideration of the above circumstances, and aims to provide a control device, control method, and control program that can assist in the evaluation of defects in an inspection object.
• the control device of the first aspect of the present disclosure includes at least one processor, which causes an image of an object to be inspected for non-destructive testing to be displayed on a display device, and when the displayed image of the object to be inspected contains two or more defects of the object to be inspected, causes a frame for inspection of defects to be superimposed on the image of the object to be inspected, and causes the frame to be displayed at a size according to a predetermined dimension so that it can be moved or rotated at least one way relative to the image of the object to be inspected.
• the control device of the second aspect of the present disclosure is the control device of the first aspect, in which the frame is a graphic corresponding to a gauge.
• the control device of the third aspect of the present disclosure is the control device of the first aspect, in which the frame is a figure conforming to a gauge defined in the JIS or ISO standard for non-destructive testing.
• the control device of the fifth aspect of the present disclosure is the control device of the fourth aspect, in which the first auxiliary line is a line segment connecting the centers of gravity of the two flaws.
• the control device of the sixth aspect of the present disclosure is the control device of the fourth aspect, in which the first auxiliary line is a line segment connecting points within the two flaw areas, and if there are multiple line segments, the longest line segment among the multiple line segments is the first auxiliary line.
• a seventh aspect of the present disclosure is a control device according to the fourth aspect, in which, when the shape of the frame is rectangular, the second auxiliary line is at least one of the diagonals of the rectangular frame, and, when the shape of the frame is circular, the second auxiliary line is at least one line corresponding to the diameter of the circular frame.
• the processor of the control device of the first aspect presents information indicating that, for a flaw at least a portion of which exists within the frame, there is an area that overlaps with the frame.
• a ninth aspect of the control device of the present disclosure is the eighth aspect of the control device, in which the processor displays, as information presentation, the portion of the frame that overlaps when not entirely within the frame, in a more emphasized manner than the other portions.
• the control device of the tenth aspect of the present disclosure is the control device of the first aspect, in which the processor, when there are three or more flaws, extracts two flaws as a pair, displays a straight line connecting the two flaws of the extracted pair, accepts user input corresponding to the line, associates it with the line, and performs display according to the accepted input.
• the processor displays, as the inspection object image, an inspection object image showing most of the photographed area of the inspection object and an enlarged inspection object image obtained by enlarging a portion of the inspection object image, and when one of the frames displayed superimposed on the inspection object image showing most of the inspection object and the frame displayed superimposed on the enlarged inspection object image moves or rotates relative to the inspection object image, the other frame also moves or rotates in conjunction.
• the control device of the twelfth aspect of the present disclosure is the control device described in the first aspect, in which a correspondence between at least one of the type, size, and length of the flaw and the score is predetermined, and the processor derives a score for a flaw at least partially present within the frame based on the correspondence, and further derives a total score if there are multiple flaws at least partially present within the frame.
• the control device of the thirteenth aspect of the present disclosure is the control device described in the twelfth aspect, in which the processor records the frame and the area of the image to be inspected that includes at least a flaw that is at least partially present within the frame, in association with the total score as displayed on the display device.
• control method of the fourteenth aspect of the present disclosure has a processor provided in the control device that displays an image of an object to be inspected for non-destructive inspection on a display device, and when the displayed image of the object to be inspected contains two or more defects of the object to be inspected, displays a frame for inspection of defects superimposed on the image of the object to be inspected, and displays the frame at a size according to a predetermined dimension so that the frame can be moved or rotated at least one way relative to the image of the object to be inspected.
• control program of the fifteenth aspect of the present disclosure causes a processor provided in the control device to execute a process of displaying, on a display device, an image of an object to be inspected for non-destructive inspection, and, if the displayed image of the object to be inspected contains two or more defects of the object to be inspected, superimposing a frame for inspection of defects on the image of the object to be inspected, and displaying the frame at a size according to a predetermined dimension, with the frame being capable of at least one of moving and rotating relatively to the image of the object to be inspected.
• This disclosure can assist in the evaluation of defects in the subject of inspection.
• FIG. 1A and 1B are diagrams for explaining an inspection target and an inspection target image according to an embodiment
• FIG. 2 is a block diagram illustrating an example of a hardware configuration of a control device according to the embodiment.
• FIG. 2 is a functional block diagram illustrating an example of a functional configuration of a control device according to the embodiment.
• 11A and 11B are diagrams for explaining an example of a display state of an inspection object image and a frame;
• 11A and 11B are diagrams for explaining a frame displayed by a frame display control unit of the embodiment.
• FIG. 1A and 1B are diagrams for explaining an inspection target and an inspection target image according to an embodiment
• FIG. 2 is a block diagram illustrating an example of a hardware configuration of a control device according to the embodiment.
• 13 is a diagram for explaining an example of a display form for clarifying pairs of confirmed flaws.
• 13A and 13B are diagrams for explaining other forms of the frame.
• 13A and 13B are diagrams for explaining other modes of the method of deriving the frame and the total point.
• the inspection object 10 is a cylindrical object formed by welding two pipes, such as a natural gas pipeline, and a defect evaluation is performed on the welded portion 10B of the inspection object 10.
• "discontinuity" includes possible defects.
• the radiographic imaging device 16 captures a radiographic image whose imaging range includes at least the welded portion 10B of the inspection object 10.
• the radiographic image captured of the inspection object 10 by the radiographic imaging device 16 is referred to as the inspection object image. Therefore, the inspection object image includes an image of the piping portion 10A of the inspection object 10 and an image of the welded portion 10B.
• the radiographic imaging device 16 of this embodiment captures an image of the inspection object, with the entire welded portion 10B divided into a number of parts as the imaging range 15 for each capture. That is, in this embodiment, a number of images of the inspection object are obtained for the inspection object 10, and a series of the images of the inspection object are joined together to form a radiographic image of an area including one circumference of the welded portion 10B. Note that, unlike the radiographic imaging device 16 of this embodiment, a radiographic imaging device 16 capable of capturing an area including one circumference of the welded portion 10B as a single radiographic image may be used, and defects may be evaluated using a single image of the inspection object.
• the inspection object image obtained by the radiation image capture device 16 is output to the control device 18.
• the control device 18 is a device that provides support for the evaluation of defects in the inspection object 10 using the inspection object image obtained by capturing the inspection object 10 for non-destructive testing.
• FIG. 2 shows a block diagram illustrating an example of the hardware configuration of the control device 18 of this embodiment.
• the control device 18 includes a CPU (Central Processing Unit) 20, a memory 21 as a temporary storage area, a non-volatile storage unit 22, a display 26 such as an LCD display, an input unit 27, and a network I/F (InterFace) 28.
• the CPU 20, memory 21, storage unit 22, display 26, input unit 27, and network I/F 28 are connected via a bus 29 such as a system bus or control bus so that various information can be exchanged between them.
• a bus 29 such as a system bus or control bus
• the CPU 20 controls the entire control device 18.
• the CPU 20 also reads out the control processing program 23 from the storage unit 22, expands it in the memory 21, and executes the expanded control processing program 23.
• the CPU 20 of this embodiment is an example of a processor of the present disclosure
• the control processing program 23 is an example of a control program of the present disclosure.
• the storage unit 22 stores a control processing program 23 executed by the CPU 20, and an inspection target image 50 obtained by the radiographic imaging device 16.
• the storage unit 22 also stores frame information 25A and score information 25B, which will be described in detail below.
• Specific examples of the storage unit 22 include storage media such as a hard disk drive (HDD), a solid state drive (SSD), and a flash memory.
• the input unit 27 is for accepting user operations, and is, for example, a touch panel, a button, a mouse, a keyboard, etc.
• a touch panel display integrating the display 26 and the input unit 27 may be used.
• the network I/F 28 performs wired or wireless communication with the radiographic imaging device 16 via a network.
• the display 26 of this embodiment is an example of a display device of the present disclosure.
• FIG. 3 also shows a functional block diagram illustrating an example of the functional configuration of the control device 18.
• the control device 18 of this embodiment includes an inspection object image acquisition unit 30, a display control unit 32, a flaw detection unit 34, a score derivation unit 36, and a report generation unit 38.
• the CPU 20 executes the control processing program 23, so that the CPU 20 functions as the inspection object image acquisition unit 30, the display control unit 32, the flaw detection unit 34, the score derivation unit 36, and the report generation unit 38.
• the inspection object image acquisition unit 30 has a function of acquiring the inspection object image 50. As described above, when a series of multiple inspection object images 50 exists for one inspection object 10, the inspection object image acquisition unit 30 of this embodiment acquires each of the series of inspection object images 50 in sequence, one by one.
• the flaw detection unit 34 has a function of detecting flaws on the inspection target 10, specifically, images corresponding to flaws on the inspection target 10, from the inspection target image 50.
• the method by which the flaw detection unit 34 detects flaws from the inspection target image 50 is not particularly limited.
• the flaw detection unit 34 may detect flaws from the inspection target image 50 using a machine learning model trained to detect flaws from the inspection target image including various types of flaws.
• the flaw detection unit 34 may detect flaws from the inspection target image 50 using a known image analysis method that detects an area different from the surrounding area as a flaw area.
• the flaw detection unit 34 of this embodiment assigns a value to each pixel of the inspection target image 50 as a detection result indicating whether or not it is a flaw. For example, for a pixel, if it is a flaw, a "1" is assigned, and if it is not a flaw, a "0" is assigned.
• the flaw detection unit 34 outputs the detection result to the display control unit 32 and the score derivation unit 36.
• the inspection target image display control unit 32A has the function of displaying the inspection target image on the display 26. As shown in FIG. 4, the inspection target image display control unit 32A displays the inspection target image 50 and the enlarged inspection target image 50e side by side on the display 26. Note that when the inspection target image display control unit 32A "displays" the inspection target image 50 and the enlarged inspection target image 50e on the display 26, this also includes a state in which the inspection target image display control unit 32A holds the inspection target image 50 and the enlarged inspection target image 50e in order to display them on the display 26.
• the inspection target image 50 displayed on the display 26 corresponds to one inspection target image 50 captured by the radiographic imaging device 16.
• the enlarged inspection target image 50e is an inspection target image obtained by enlarging a portion of the inspection target image 50.
• Each of the inspection target image 50 and the enlarged inspection target image 50e shown in FIG. 4 includes a piping portion 50A, which is an image of the piping portion 10A, and a welding portion 50B, which is an image of the welding portion 10B.
• the inspection target image display control unit 32A of this embodiment displays an enlarged range frame 59 on the inspection target image 50, which indicates the range of the enlarged inspection target image 50e in the inspection target image 50.
• the enlargement range and enlargement ratio in the inspection target image 50 may each be determined in advance, or may be specified by the user via the input unit 27.
• the frame display control unit 32B has a function of displaying a frame 60 of a size according to predetermined dimensions for inspection for defects, superimposed on each of the inspection target image 50 and the enlarged inspection target image 50e, so that the frame 60 can be moved and rotated relative to each of the inspection target image 50 and the enlarged inspection target image 50e. Note that when the frame display control unit 32B "displays" the frame 60, this also includes a state in which the frame display control unit 32B holds the frame 60 in order to display it.
• the frame 60 is a figure corresponding to a gauge.
• the frame 60 in this embodiment is a figure conforming to a gauge defined in a JIS standard related to non-destructive testing. Examples of such JIS standards include JIS Z 3104-1995 "Radiation Test Method for Steel Welded Joints", JIS Z 3105-2003 "Radiation Test Method for Aluminum Welded Joints", and JIS G 0581-1999 "Radiation Test Method for Steel Castings".
• the frame 60 may be a figure conforming to a gauge defined in an ISO standard corresponding to these JIS standards.
• information on the size and shape of the gauge used in these standards is stored in the storage unit 22 as frame information 25A.
• the frame information 25A in this embodiment includes information on the size and shape of multiple types of gauges.
• the frame display control unit 32B refers to the frame information 25A and determines the size and shape of the frame 60 to be displayed in each of the inspection target image 50 and the enlarged inspection target image 50e based on the size and shape of the gauge to be used, the size of the inspection target 10 and the corresponding relationship between the sizes of the inspection target 10, and the enlargement ratio of the enlarged inspection target image 50e.Then, the frame 60 of the determined size and shape is displayed superimposed on each of the inspection target image 50 and the enlarged inspection target image 50e.
• the frame display control unit 32B displays a frame 60 when two or more flaws on the inspection object 10 are included in the inspection object image 50.
• the frame 60 is displayed superimposed on each of the inspection object image 50 and the enlarged inspection object image 50e.
• the method by which the frame display control unit 32B emphasizes the portion 60A of the frame 60 is not limited.
• the frame display control unit 32B may display the portion 60A in a color that stands out more than the other portions, or may cause the portion 60A to blink.
• this also includes a state in which the outer edge of the flaw 52 overlaps with the frame 60.
• there may be cases in which the flaw 52 does not exist outside the frame 60.
• "overlapping" here can refer to the case where the coordinates in the original data overlap, or the case where pixels on the screen of the display 26 overlap.
• the auxiliary line display control unit 32C displays a first auxiliary line 64 provided according to the position of the flaw 52 and a second auxiliary line 66 provided according to the position of the frame 60 on the enlarged inspection target image 50e, as shown in FIG. 6.
• the auxiliary line display control unit 32C displays a line segment connecting the center of gravity of the flaw 52-1, at least a part of which exists within the frame 60, and the center of gravity of the flaw 52-2 as the first auxiliary line 64 on the enlarged inspection target image 50e.
• the pair of flaws 52 may be suggested in order starting from the pair whose distance between them is closest to the length of the diagonal of the frame 60, and the user may select the most preferred pair of flaws 62, and the first auxiliary line 64 may be provided for the selected pair.
• the frame display control unit 32B moves the frame 60 relatively to the first auxiliary line 64 and the second auxiliary line 66 so that they have a predetermined positional relationship.
• the movement of the frame 60 may be performed in response to an instruction from the user using the input unit 27, or may be performed automatically.
• the image change instruction button 71 is a button that the user operates via the input unit 27 when switching the inspection object image 50 to be displayed on the display 26.
• the report output instruction button 72 is a button that the user operates via the input unit 27 when outputting the inspection object image 50, i.e., a report regarding the inspection of the inspection object 10.
• the report generation unit 38 records the frame 60 and the area of the enlarged inspection target image 50e that includes at least the flaws 52 (in FIG. 6, flaws 52-1 and 52-2) at least a portion of which is present within the frame 60, in a state in which they are displayed on the display 26, in association with the total score derived by the score derivation unit 36. Specifically, the report generation unit 38 captures the screen of the display 26 in a state in which the enlarged inspection target image 50e is displayed, and records it in association with the total score.
• evaluation information the information recorded in this manner will be referred to as "evaluation information.”
• the report generation unit 38 accepts that the report output instruction button 72 has been operated, it uses the recorded evaluation information to generate a report based on a predetermined format.
• FIG. 7 shows a flowchart illustrating an example of the flow of control processing executed by the control device 18.
• the control processing shown in FIG. 7 is executed by the CPU 20 executing the control processing program 23.
• step S100 of FIG. 7 the inspection object image acquisition unit 30 acquires one inspection object image 50 as described above. If a series of multiple inspection object images 50 exists for one inspection object 10, one of the inspection object images 50 is acquired in sequence.
• the frame display control unit 32B accepts the user's designation of the gauge to be used for evaluation.
• the user selects the gauge to be used for evaluation from among the multiple types of gauges whose information is included in frame information 25A.
• the defect detection unit 34 detects defects 52 from the inspection target image 50 as described above, and assigns a value representing whether each pixel of the inspection target image 50 is a defect or not, as a detection result.
• the inspection target image display control unit 32A starts displaying the inspection target image 50 and the enlarged inspection target image 50e on the display 26, as described above.
• the frame display control unit 32B determines whether or not to display the frame 60. In this embodiment, as described above, if the enlarged inspection target image 50e contains two or more flaws 52, the frame display control unit 32B displays the frame 60. Therefore, based on the detection result of step S104, the frame display control unit 32B determines whether or not the enlarged inspection target image 50e contains two or more flaws 52. If the enlarged inspection target image 50e does not contain two or more flaws 52, in other words, if the enlarged inspection target image 50e does not contain any flaws 52 or contains one flaw 52, the determination in step S108 is negative, and the process proceeds to step S128. On the other hand, if the enlarged inspection target image 50e contains two or more flaws 52, the determination in step S108 is positive, and the process proceeds to step S110.
• step S110 the frame display control unit 32B references the frame information 25A and starts displaying a frame 60 corresponding to the gauge specified in step S102 above, superimposed on each of the inspection target image 50 and the enlarged inspection target image 50e, so that it can be moved and rotated.
• step S112 the frame display control unit 32B determines whether or not there is an area that overlaps with the frame 60 for the flaw 52, at least a portion of which is within the frame 60, as described above. If there is no area that overlaps with the frame 60, the determination in step S112 is negative, and the process proceeds to step S116. On the other hand, if there is an area that overlaps with the frame 60, the determination in step S112 is positive, and the process proceeds to step S114.
• step S114 the frame display control unit 32B highlights the portion 60A of the frame 60 that overlaps with the flaw 52, as described above with reference to FIG. 5.
• the auxiliary line display control unit 32C determines whether or not to display the first auxiliary line 64 and the second auxiliary line 66. As described above, the auxiliary line display control unit 32C switches between displaying and not displaying the first auxiliary line 64 and the second auxiliary line 66 when the auxiliary line display instruction button 70 displayed on the display 26 is operated by the user. Therefore, the auxiliary line display control unit 32C detects the operation state of the auxiliary line display instruction button 70 and determines whether or not to display the first auxiliary line 64 and the second auxiliary line 66. If the first auxiliary line 64 and the second auxiliary line 66 are not to be displayed, the determination in step S116 is negative, and the process proceeds to step S122. On the other hand, if the first auxiliary line 64 and the second auxiliary line 66 are to be displayed, the determination in step S116 is positive, and the process proceeds to step S118.
• step S118 the auxiliary line display control unit 32C displays the first auxiliary line 64 and the second auxiliary line 66 as described above with reference to FIG. 6.
• the frame display control unit 32B moves the frame 60 so that the first auxiliary line 64 and the second auxiliary line 66 overlap, as described above with reference to FIG. 6.
• step S124 the display control unit 32 displays the score for each flaw 52 and the total score derived in step S122 above near each flaw 52 and the frame 60.
• step S126 the frame display control unit 32B determines whether or not the user has moved or rotated the frame 60. If the user has not moved or rotated the frame 60, the determination in step S126 is negative, and the process proceeds to step S128.
• step S1208 the report generation unit 38 determines whether or not to output the above-mentioned report. As described above, if the user has not operated the report output instruction button 72, the determination in step S128 is negative, and the process proceeds to step S130.
• step S130 the inspection target image acquisition unit 30 determines whether or not an instruction to change the inspection target image 50 to be displayed has been received. As described above, if the user's operation of the image change instruction button 71 has been received, the determination in step S130 becomes positive, the process returns to step S100, and when the inspection target image acquisition unit 30 acquires the next inspection target image 50, the process repeats the processing from step S102 onwards. On the other hand, if the user's operation of the image change instruction button 71 has not been received, the determination in step S130 becomes negative, the process returns to step S126, and the processing in steps S126 and S128 is repeated.
• step S132 the report generation unit 38 records, as described above, the state displayed on the display 26 for the frame 60 and the area of the enlarged inspection target image 50e that includes at least the flaw 52, at least a part of which is present within the frame 60, as evaluation information in association with the total score derived by the score derivation unit 36.
• the report generation unit 38 also creates a report using the evaluation information and outputs the created report.
• the output destination of the report is not limited, and may be, for example, output to the storage unit 22 and stored in the storage unit 22, or may be output to an external device via the network I/F 28.
• the report may also be displayed on the display 26 by the display control unit 32.
• step S134 the inspection target image display control unit 32A ends the display of the inspection target image 50 and the enlarged inspection target image 50e, and the frame display control unit 32B ends the display of the frame 60.
• the control processing shown in FIG. 7 ends.
• the inspection object image display control unit 32A causes the display 26 to display the inspection object image 50, which is an image of the inspection object 10 for non-destructive testing. Furthermore, when the displayed inspection object image 50 contains two or more defects on the inspection object 10, the frame display control unit 32B causes a frame 60 for inspection of defects to be superimposed on the inspection object image 50 and the enlarged inspection object image 50e, and causes the frame 60 to be displayed at a size according to a predetermined dimension so that it can be moved and rotated relative to the inspection object image 50 and the enlarged inspection object image 50e.
• control device 18 of this embodiment can easily bring the positional relationship between the frame 60 for flaw inspection and the flaw 52 contained in the inspection target image 50 (enlarged inspection target image 50e) into an appropriate state, thereby assisting in the evaluation of flaws in the inspection target 10.
• the shape of the frame 60 is rectangular, but the shape of the frame 60 is not limited to a rectangle.
• the shape of the frame 60 may be circular, as in the case of the frame 60-1 shown in FIG. 9.
• the second auxiliary line 66-1 is a line segment corresponding to the diameter of the circle.
• the frame 60 does not have to be in a form that covers the entire internal area, and the frame 60 may be formed of a line segment with some breaks, as in the case of the frame 60-2 shown in FIG. 9.
• the second auxiliary line 66-2 is a diagonal line of the rectangle defined by the frame 60-2, similar to the second auxiliary line 66 of the frame 60 described above (see FIG. 6, etc.).
• the display control unit 32 may display on the display 26 information indicating whether or not the user has visually judged and confirmed the score for each two of the flaws 52.
• the display control unit 32 may extract two flaws 52 as a pair, display a straight line connecting the two flaws 52 of the extracted pair, accept user input corresponding to the line, and display according to the accepted input in association with the line.
• An example of the display form in this case is shown in FIG. 8. In the example shown in FIG. 8, a straight line 80-1 and a check box 82-1 corresponding to the straight line 80-1 are displayed for the pair of flaws 52-1 and 52-2.
• a straight line 80-2 and a check box 82-2 corresponding to the straight line 80-2 are displayed for the pair of flaws 52-2 and 52-3.
• the pair of flaws 52-1 and 52-2 has been checked, but the pair of flaws 52-2 and 52-3 has not yet been checked.
• the user checks the pair of flaws 52-1 and 52-2 the user checks the check box 82-1 using the input unit 27.
• the auxiliary line display control unit 32C automatically moves the frame 60 so that the first auxiliary line 64 and the second auxiliary line 66 overlap.
• the movement of the frame 60 is not limited to being performed by the auxiliary line display control unit 32C.
• the user may use the input unit 27 to manually move the frame 60 so that the first auxiliary line 64 and the second auxiliary line 66 overlap.
• the movement of the frame 60 may be a combination of automatic movement by the auxiliary line display control unit 32C and manual movement by the user.
• first auxiliary line 64 and the second auxiliary line 66 are displayed on the display 26 .
• the frame display control unit 32B automatically moves the frame 60 based on the first auxiliary line 64 and the second auxiliary line 66, the first auxiliary line 64 and the second auxiliary line 66 do not have to be displayed on the display 26.
• the frame 60 used for evaluation may be changeable during the control process (see FIG. 7).
• the frame 60 shown in FIG. 5 may be changed to a frame of a different size, such as changing to the frame 60-3 shown in FIG. 10.
• the score derivation unit 36 may add up the scores of the flaws 52-1, 52-2, and 52-3 included in the frame 60-3 to derive the total score, or may convert the sum of the scores of the flaws 52-1, 52-2, and 52-3 into the size of the frame 60 to derive the total score.
• the score derivation unit 36 derives the sum of the scores of the flaws 52-1, 52-2, and 52-3, divided by two, as the total score.
• the display control unit 32 may also display the scores for each flaw 52 derived by the score derivation unit 36 and the total score on the display 26.
• the flaw detection unit 34 automatically detects flaws 52 from the inspection target image 50, but the user may check the inspection target image 50 or the enlarged inspection target image 50e displayed on the display 26, and specify the area of flaw 52 in the displayed inspection target image 50 or the enlarged inspection target image 50e using the input unit 27, and the flaw detection unit 34 may detect the area specified by the user as flaw 52.
• the inspection object image display control unit 32A and the frame display control unit 32B use the display 26 provided in the control device 18 as a display device for displaying the inspection object image 50 and the frame 60, but the display device is not limited to the display 26.
• the display device for displaying the inspection object image 50 and the frame 60 may be a display device provided outside the control device 18.
• the following various processors can be used as the hardware structure of the processing unit that executes various processes, such as the inspection object image acquisition unit 30, the display control unit 32, the flaw detection unit 34, the score derivation unit 36, and the report generation unit 38.
• the above various processors include a CPU, which is a general-purpose processor that executes software (programs) and functions as various processing units, as well as programmable logic devices (PLDs), which are processors whose circuit configuration can be changed after manufacture, such as FPGAs (Field Programmable Gate Arrays), and dedicated electrical circuits, such as ASICs (Application Specific Integrated Circuits), which are processors with a circuit configuration designed specifically to execute specific processes.
• a CPU which is a general-purpose processor that executes software (programs) and functions as various processing units, as well as programmable logic devices (PLDs), which are processors whose circuit configuration can be changed after manufacture, such as FPGAs (Field Programmable Gate Arrays), and dedicated electrical circuits, such as A
• a single processing unit may be configured with one of these various processors, or may be configured with a combination of two or more processors of the same or different types (e.g., a combination of multiple FPGAs, or a combination of a CPU and an FPGA). Also, multiple processing units may be configured with a single processor.
• Examples of configuring multiple processing units with a single processor include, first, a form in which one processor is configured with a combination of one or more CPUs and software, as typified by client and server computers, and this processor functions as multiple processing units. Second, a form in which a processor is used to realize the functions of the entire system, including multiple processing units, with a single IC (Integrated Circuit) chip, as typified by System On Chip (SoC). In this way, the various processing units are configured as a hardware structure using one or more of the various processors listed above.
• SoC System On Chip
• the hardware structure of these various processors can be an electrical circuit that combines circuit elements such as semiconductor elements.
• control processing program 23 is described as being pre-stored (installed) in the memory unit 22 of the control device 18, but this is not limited to the above.
• the control processing program 23 may be provided in a form recorded on a recording medium such as a CD-ROM (Compact Disc Read Only Memory), a DVD-ROM (Digital Versatile Disc Read Only Memory), or a USB (Universal Serial Bus) memory.
• the control processing program 23 may also be downloaded from an external device via a network.
• control processing program 23 in each of the above embodiments may be provided as a program product.
• a program product includes any type of product for providing a program.
• a program product includes a program provided over a network such as the Internet, and a non-transitory computer-readable recording medium such as a CD-ROM or DVD on which a program is stored.
• Appendix 1 At least one processor; The processor, Displaying an image of an object to be inspected in the non-destructive inspection on a display device; When the displayed inspection target image includes two or more defects of the inspection target, a frame for inspection of defects is displayed in a state where the frame is superimposed on the inspection target image, the frame is displayed in a size according to a predetermined dimension so that the frame can be moved or rotated at least one of relatively to the inspection target image. Control device.
• the first auxiliary line is a line segment connecting points within the two flaw regions,
• the control device according to claim 4, wherein, when a plurality of the line segments are present, the longest line segment among the plurality of the line segments is set as the first auxiliary line.
• the processor When there are three or more flaws, extract two flaws as a pair; Displaying a straight line connecting the two flaws of the extracted pair; accepting user input corresponding to the line; 10.
• the control device further comprising: a display corresponding to the received input, the display being associated with the straight line.
• the processor As the inspection object image, an inspection object image showing most of the photographed range of the inspection object and an enlarged inspection object image obtained by enlarging a part of the inspection object image are displayed; A control device as described in any one of Supplementary Note 1 to Supplementary Note 10, in which when one of the frame displayed superimposed on an inspection object image that captures most of the inspection object and the frame displayed superimposed on the enlarged inspection object image is moved or rotated relative to the inspection object image, the other frame is also moved or rotated in tandem.
• a correspondence relationship between at least one of the type, size, and length of the flaw and the score is determined in advance;
• the processor derives a score for the flaw that has at least a portion within the frame based on the correspondence relationship; 12.
• the control device further comprising a control unit for determining a total score when a plurality of flaws exist at least partially within the frame.
• Appendix 13 The processor, A control device as described in Appendix 12, which records the frame and an area of the inspection image at least including the flaw, at least a portion of which is present within the frame, in correspondence with the total score while displayed on the display device.
• Appendix 14 A processor included in the control device Displaying an image of an object to be inspected in the non-destructive inspection on a display device; A control method in which, when the displayed image to be inspected contains two or more defects of the inspection target, a frame for inspection of defects is superimposed on the image to be inspected, and the frame is displayed at a size according to predetermined dimensions so that it can be moved or rotated at least one of relative to the image to be inspected.
• Appendix 15 A processor included in the control device Displaying an image of an object to be inspected in the non-destructive inspection on a display device; A control program for executing a process in which, when the displayed image to be inspected contains two or more defects of the inspection target, a frame for inspection of defects is superimposed on the image to be inspected, the frame being displayed at a size according to predetermined dimensions and capable of being moved or rotated at least one of relative to the image to be inspected.

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