WO2020066414A1 - Image generation device, image generation method, image generation program, and recording medium - Google Patents

Abstract

The present invention generates an image in which the degree of slope of an object is depicted in an intuitive and easy-to-understand manner. An image generation device according to the present invention comprises: a calculation unit that calculates a first position and a second position, within an image, that respectively correspond to positions of a reference location and a location of interest on an object in a bird's-eye view of the object; and an image generating unit that generates an image so as to indicate the first position and the second position calculated by the calculation unit.

Description

Image generation apparatus, image generation method, image generation program, and recording medium

The present invention relates to an image generation device, an image generation method, an image generation program, and a recording medium that generate an image indicating a degree of inclination of an object.
Priority is claimed on Japanese Patent Application No. 2018-185519 filed on September 28, 2018, the content of which is incorporated herein by reference.

As a management system for inspecting the inspection target such as equipment, information indicating the imaging conditions, including the GPS (Global Positioning System) information of the imaging location and the direction of the camera at the time of imaging, is taken from the image of the inspection target In general, a system for managing on a server in association with the server is generally known.

Patent Document 1 discloses a method of managing a photographed image of an inspection target at the time of inspection, data on imaging conditions at that time, and inspection history data input by a user at the time of inspection in association with the inspection target. The inspection history data at this time is data indicating presence / absence of abnormality of the inspection target such as rust, crack, inclination, etc. of the inspection target.

Further, in Patent Document 2, a sensor for measuring the inclination is attached to a telephone pole, the sensor information is managed by a server, the presence or absence of inclination of each telephone pole is determined, and when it is determined that the telephone pole is inclined, the inclination is generated. There is disclosed a method of notifying information about the telephone pole.

JP 2016-103218A JP2018-4387A

However, the method disclosed in Patent Document 1 has the following problems. First, the physical quantity of the tilt and the exact direction cannot be determined only by the captured image of the inspection target (hereinafter, referred to as an object) and the information on the presence or absence of the tilt of the object. Although the inclination of the object in the left-right direction can be determined to some extent from the captured image, the magnitude of the inclination of the object cannot be accurately grasped in the depth direction of the captured image, so that the risk of collapse due to the inclination of the object cannot be visually determined.

Further, in Patent Literature 2, since only the identification ID of the telephone pole determined to have a tilt and the numerical value of the angle and direction of the tilt are notified to the user, the user intuitively grasps the degree of the tilt of the telephone pole. It is hard. For example, conventionally, as a method of visually inspecting the presence or absence of a tilt with a risk of collapse, there is a method of determining not the angle but the amount of displacement of the tip in the horizontal direction. When only the numerical values of the angle and the direction are notified, consistency with such a conventional visual inspection method is not obtained, and there is a possibility that the user is confused.

One object of one embodiment of the present invention is to provide an image forming apparatus, an image processing method, an image processing program, and a recording medium that generate an image that indicates the degree of inclination of an object in an intuitive and easy-to-understand manner.

In order to solve the above-described problem, an image generation device according to one embodiment of the present invention is an image generation device that generates an image indicating a degree of inclination of an object. A calculation unit that calculates a first position and a second position in the image corresponding to the position of the part and the part of interest, respectively, and the first position and the second position calculated by the calculation unit. And an image generation unit that generates the image. The site of interest is a site that is farther from the installation unit of the object than the reference site.

Further, the image generation method according to an aspect of the present invention is an image generation method in which the image generation device generates an image indicating a degree of inclination of the object, wherein the image generation device has a bird's-eye view of the object. Calculating a first position and a second position in the image corresponding to the positions of the reference region and the region of interest in the object, respectively, and the image generation device calculates the first position and the second position And generating the image so as to indicate that the region of interest is a region farther from the installation portion of the object than the reference region.

According to one embodiment of the present invention, it is possible to generate an image that indicates the degree of inclination of an object intuitively and easily.

1 is a block diagram illustrating a schematic configuration example of an image generation device according to an embodiment of the present invention. FIG. 3 is a diagram for describing an example of an object. FIG. 3 is a diagram for describing an example of an object. FIG. 4 is a diagram for describing an example of an object when inclined. FIG. 4 is a diagram for describing an example of an object when inclined. FIG. 4 is a diagram for describing an example of an object when inclined. 5 is an example of an output image generated by an image generation unit according to an embodiment of the present invention. It is a figure for explaining an example of the object which inclines in the depth direction. 5 is an example of an output image generated by an image generation unit according to an embodiment of the present invention. FIG. 4 is a flowchart for explaining an example of processing in the image generation device according to one embodiment of the present invention. 5 is an example of an output image generated by an image generation unit according to an embodiment of the present invention. 5 is an example of an output image generated by an image generation unit according to an embodiment of the present invention. 1 is a block diagram illustrating a schematic configuration example of an image generation device according to an embodiment of the present invention. It is a figure for explaining a fall prediction area. FIG. 4 is a flowchart for explaining an example of processing in the image generation device according to one embodiment of the present invention. FIG. 6 is a flowchart for explaining an example of a process in a determination unit according to an embodiment of the present invention. 5 is an example of an output image generated by an image generation unit according to an embodiment of the present invention. 1 is a block diagram illustrating a schematic configuration example of an image generation device according to an embodiment of the present invention. FIG. 3 is a diagram for describing an example of a connected object. FIG. 4 is a flowchart for explaining an example of processing in the image generation device according to one embodiment of the present invention. FIG. 6 is a flowchart for explaining an example of a process in a determination unit according to an embodiment of the present invention. FIG. 3 is a diagram for describing an example of a connected object. FIG. 3 is a diagram for describing an example of a connected object. FIG. 10 is a flowchart for explaining an example of another process in the determination unit according to one embodiment of the present invention. 1 is a block diagram illustrating a schematic configuration example of an image generation device according to an embodiment of the present invention. It is a figure for explaining an example of a damaged object. 5 is an example of an output image generated by an image generation unit according to an embodiment of the present invention. FIG. 4 is a flowchart for explaining an example of processing in the image generation device according to one embodiment of the present invention. FIG. 6 is a flowchart for explaining an example of a process in a determination unit according to an embodiment of the present invention.

各 Each embodiment according to the present invention will be described in detail below with reference to the accompanying drawings. The accompanying drawings merely show specific embodiments in accordance with the principles of the present invention. These are provided only for understanding the present invention, and are not intended to limit the present invention in any way. Also, it should be noted that the elements illustrated in the accompanying drawings are intentionally exaggerated for better understanding of the present invention, and thus are different from actual spacings and sizes of the elements.

In the following description, when the same reference numeral is given to a certain element in one drawing, the same element in another drawing is also given the same configuration and function as the certain element. Therefore, a detailed description of the same element will be omitted.

画像 In addition, the “image” described below has a meaning including both a still image and a moving image. Further, when the moving image includes audio information, the “image” also includes audio information.

[First embodiment]
A first embodiment according to the present invention will be described below with reference to the drawings.

(Device configuration)
FIG. 1 is a functional block diagram illustrating a configuration of an image generation device 1 according to the first embodiment of the present invention. As shown in FIG. 1, the image generation device 1 includes a calculation unit 2, a determination unit 3, and an image generation unit 4, and generates an output image indicating a degree of inclination of a target object.

In one aspect, the image generation device 1 receives the object information and the inclination information or the three-dimensional information, and outputs the calculation unit 2 corresponding to the positions of the reference region and the region of interest in the object when the object is overlooked. A first position and a second position in the image are calculated, a first mark indicating a reference part is arranged at a first position by the image generation unit 4, and a second mark indicating a part of interest is set to a second mark. To generate an output image arranged at the position.

基準 Note that the reference portion means a portion close to the installation portion of the object, and is a portion serving as a reference for the position of the object. In one embodiment, the reference part of the object is a ground part of the object. The region of interest is a region that is farther from the installation portion of the object than the reference region, and is a region for confirming the displacement of the object in order to inspect the inclination of the object. In one aspect, the site of interest of the object is the tip of the object. Hereinafter, a case will be described in which a ground edge portion is used as a reference portion and a tip portion is used as a portion of interest.

In one aspect, the image generation device 1 calculates relative position information indicating a relative position of the tip portion with respect to the ground portion and a displacement amount of the tip portion with respect to the ground portion in the horizontal direction by the calculation portion 2, and determines the determination portion. 3, it is determined whether the displacement amount exceeds a predetermined threshold. If the determination result of the determination unit 3 indicates that the displacement amount exceeds the predetermined threshold, the image generation unit 4 outputs A mark or a message indicating the danger of the object collapse is included in the image, and the user is notified.

Here, the object information includes an identification number for identifying each object, information indicating the type of the object, position information indicating a position of the object, the shape and size of the front end and the front end of the object, and the front end to the front end. The information related to the target object, such as the height to the target object.

On the other hand, the tilt information includes a value indicating the tilt of the object in the vertical direction (angle, three-dimensional coordinates, relative amount with respect to the reference, etc.) and information on the tilt direction (direction, relative amount with respect to the reference, etc.). Note that the inclination information can be acquired by, for example, measuring the inclination of the surface of the object using an existing inclinometer or inclination sensor, or measuring the height and horizontal displacement with a measure. Alternatively, the tilt angle, displacement amount, tilt direction, and the like of the object may be calculated from the three-dimensional position information of the target object by a stereo camera or a three-dimensional scanning system using a laser.

If the structure of the object is a taper structure (a structure in which the diameter, width, thickness, etc. of an elongated structure is tapered), it is necessary to take into account the angle of the taper, and further grasp the degree of inclination of the object. It is hard to do. Therefore, in the case of an object having a tapered structure, if the inclination is calculated as the inclination of the center line in the vertical direction of the object, the inclination of the object can be properly grasped.

In another aspect, three-dimensional position information may be input to the image generation device 1 instead of the inclination information. The three-dimensional position information is information indicating at least the positions of the front end portion and the ground portion of the object, and can be acquired by a stereo camera or a three-dimensional scanning system using a laser as described above.

物体 The target object is typically equipment, for example, a utility pole. In the following, the processing of each unit will be described using an example in which the object is a utility pole, but the present embodiment is not limited to this.

(Calculation unit 2)
In one aspect, the calculation unit 2 calculates the relative position information and the displacement amount of the tip of the telephone pole with respect to the ground portion from the object information and the inclination information, and further looks down on the object from the relative position information and the object information. The first position and the second position in the output image respectively corresponding to the positions of the ground edge and the tip of the telephone pole are calculated.

First, a method of calculating relative position information of the tip of the telephone pole with respect to the ground portion will be described. First, a case of a utility pole having no inclination will be described. FIG. 2 is a view of a power pole having no inclination seen from the lateral direction. A portion where the power pole 10 is in contact with the front end 11 at the upper part of the power pole 10 and the ground 12 is referred to as a ground portion 13. In addition, the part where the ground 12 and the telephone pole 10 are in contact may be called an installation part.

FIG. 3 is a diagram of the electric pole 10 of FIG. 2 viewed from the bird's-eye view direction. In FIG. 3, since the utility pole 10 has no inclination, the center of the tip portion 11 and the center of the ground portion 13 coincide. Further, since the power pole 10 has a taper, the size of the tip 11 is smaller than the size of the ground portion 13.

Here, the relative position information of the tip 11 is expressed in a two-dimensional coordinate system with the origin of the center of the ground 13. In one embodiment, the coordinate system uses an east-west displacement (unit: mm) as an x-axis and a north-south displacement (unit: mm) as a y-axis. In this case, the relative position information of the tip 11 is the coordinates (x, y) of the center of the tip 11, and is (0, 0) in FIG.

Next, the pole 10 having an inclination will be described. FIG. 4 is a diagram of the inclined power pole 10 viewed horizontally from the south direction. In FIG. 4, the utility pole 10 is inclined in the west direction (negative direction of the x-axis). At this time, the center position of the front end portion 11 is a position shifted x1 mm to the left from the center position of the ground portion 13. The value of x1 is obtained by the equation (1) from the ground height h of the utility pole 10 and the tilt angle θx in the x-axis direction.

x1 = h × sin θx (1)
Note that h is included in the object information, and θx is calculated from the tilt angle and the tilt direction included in the tilt information.

FIG. 5 is a view of the electric pole 10 of FIG. In FIG. 5, the point 14 indicating the center position of the tip 11 is located x1 mm to the left of the point 15 indicating the center position of the ground part 13, and the relative position information of the tip 11 is (−x1, 0). Becomes

FIG. 6 is a view of the electric pole 10 inclined in the northwest direction as viewed from the overhead direction. In FIG. 6, a point 14 indicating the center position of the tip 11 is located at a position x2 mm to the left and y2 mm above the point 15 indicating the center position of the ground part 13. The information is (-x2, -y2). Note that the values of x2 and y2 can also be obtained in the same manner as in the equation (1).

As described above, the calculation unit 2 can calculate the relative position information of the tip 11 with respect to the ground edge 13.

Next, a description will be given of a method of calculating the amount of displacement of the distal end portion 11 in the horizontal direction with respect to the ground portion 13 by the calculation unit 2. Here, the displacement vector of the distal end portion 11 with respect to the ground edge portion 13 is a two-dimensional vector having coordinates indicated by relative position information of the distal end portion 11 as elements. For example, in FIG. 6, a vector 16 is a displacement vector. The length d of the vector 16 is the amount of displacement of the tip 11 relative to the ground 13, and can be calculated from the distance between the tip 11 and the center position of the ground 13. Also, the direction of the displacement can be calculated from the displacement vector.

Then, the calculation unit 2 calculates the coordinates of the ground part 13 and the tip part 11 from the position information of the utility pole 10 included in the object information and the relative position information of the tip part 11 with respect to the ground part 13, and outputs an output image. The first position and the second position can be calculated by converting the coordinates into the coordinates of the inside.

In another embodiment, if at least three-dimensional position information indicating the position of the tip 11 of the telephone pole 10 and the position of the ground part 13 is input to the image generation device 1 instead of the inclination information, the calculation is performed. The unit 2 can calculate the first position and the second position by converting the coordinates of the ground part 13 and the coordinates of the tip 11 indicated by the three-dimensional position information into coordinates in the output image. it can. The calculating unit 2 can calculate the amount of displacement of the tip 11 relative to the ground 13 in the horizontal direction from the coordinates of the tip 13 and the coordinates of the tip 11 indicated by the three-dimensional position information.

(Determining unit 3)
The determination unit 3 determines whether the displacement amount of the distal end portion 11 exceeds a predetermined threshold (or whether it is less than the threshold).

Here, the threshold value used by the determination unit 3 can be set for each object. In one embodiment, the determination unit 3 includes information indicating the type of the object, which is included in the object information, and A preset value is selected according to the information indicating the height up to the section 13. In another aspect, a plurality of setting values may be prepared, and the user may select which value is to be the threshold, or the user may directly input the threshold value from the outside.

(Image generation unit 4)
The image generation unit 4 sets the color, brightness, shape, and the like of the mark indicating the ground edge 13 and the tip 11 of the utility pole 10 based on the object information and the determination result of the determination unit 3, By arranging each mark at the calculated first position and second position, it is possible to generate an image in which the degree of inclination of the utility pole 10 is displayed in an easy-to-understand manner and overhead view.

First, the setting of the color, brightness, shape, etc. of the mark will be described. In one embodiment, the image generation unit 4 may change the shape of the mark indicating the ground part 13 of the utility pole 10 and the mark indicating the tip part 11 into the shape of the ground part 13 and the tip part 11 of the utility pole 10 included in the object information. Refer to and set. In another embodiment, when the user wants to freely set the mark, the user may select a mark registered in advance or select a mark created by the user.

FIG. 7 is an example of an output image generated by the image generation unit 4 and showing the inclination of the utility pole 10. For example, in FIG. 7, a circular mark imitating the circular shape of the utility pole 10 is set as the mark 18 of the ground portion 13 of the utility pole 10 and the mark 17 of the tip 11. The sizes of the mark 18 and the mark 17 in the output image indicate the size of the horizontal cross section of the ground part 13 and the tip part 11 when the utility pole 10 is not inclined, respectively. In one aspect, the ratio between the size of each mark on the output image and the actual size of the ground edge portion 13 and the tip portion 11 of the power pole 10 is determined by the distance between the marks on the output image and the actual power pole 10 Is set to be the same as the ratio to the distance between the ground edge portion 13 and the tip portion 11.

In one embodiment, the image generation unit 4 changes the shape, color, brightness, line thickness, and the like of the mark between the mark 18 indicating the ground-side portion 13 and the mark 17 indicating the distal end portion 11. With such a setting, the distinction between the mark 18 indicating the ground portion 13 and the mark 17 indicating the tip 11 can be clarified. When the mark 18 indicating the ground portion 13 and the mark 17 indicating the tip 11 overlap, the image generation unit 4 sets the transparency of the internal area of the mark 17 indicating the tip 11 to be increased. Also, the outline of the mark 18 indicating the ground edge portion 13 of the overlapping area can be easily confirmed.

In one embodiment, when the displacement amount of the distal end portion 11 is equal to or greater than the threshold, the image generating unit 4 may include the mark 18 indicating the ground portion 13 and the mark indicating the distal end 11 so that the difference is different from that below the threshold. 17 may be set. For example, in one embodiment, the image generation unit 4 determines the color and brightness of at least one of the mark 18 indicating the ground-side part 13 and the mark 17 indicating the tip part 11 according to whether the displacement amount exceeds a threshold value. And at least one of the shapes may be different. As an example, the image generation unit 4 sets the color of the mark 17 indicating the tip 11 to red when the displacement amount is equal to or larger than the threshold, and sets the color of the mark 17 indicating the tip 11 to green otherwise. By setting, the state of the displacement amount can be visually easily understood.

Next, the arrangement of each mark will be described. In one embodiment, the image generation unit 4 is configured such that the arrangement of the center position of each mark indicating the ground edge portion 13 and the front end portion 11 and the actual positions of the ground edge portion 13 and the front end portion 11 have a similar relationship. Place each mark.

At this time, the displacement vector calculated by the calculation unit 2 may be displayed in order to more easily display the positional relationship between the ground edge portion 13 and the tip portion 11. As shown in FIG. 7, a mark 18 indicating the ground portion 13 and a mark 17 indicating the tip portion 11 are arranged so as to be similar to the actual positions of the ground portion 13 and the tip portion 11 of the utility pole 10. Is superimposed on the displacement vector 19. At this time, depending on the direction of the displacement vector 19, the direction of the inclination of the distal end portion 11 can be visually easily understood.

Since the magnitude of the displacement vector 19 indicates the amount of displacement, by comparing the magnitude of the displacement vector 19 with the diameter of the mark 17 indicating the tip 11, it becomes easier to visually recognize how much the tip 11 is inclined. That is, the image generation unit 4 determines that the ratio of the distance between the center position of the mark 17 and the center position of the mark 18 to the size of the mark 17 indicating the tip 11 is the tip 11 when the telephone pole 10 is not inclined. It is preferable to generate an output image so as to indicate the ratio of the above-described displacement amount to the size of the horizontal cross section of the tip section 11. Risk index) can be intuitively indicated.

As described above, the image generation unit 4 according to the present embodiment can generate an output image in which the marks of the ground part 13 and the tip part 11 of the utility pole 10 are arranged in accordance with the actual positions.

As a conventional method, there is a method of determining a tilt from a captured image of a telephone pole. In this case, however, the tilt in the front-rear direction cannot be intuitively grasped from the captured image. Also, if there is three-dimensional position information, the inclination of the telephone pole can be obtained in the same manner as in the case of FIG. 4, but it is difficult to intuitively know how much the telephone pole is inclined.

For example, as shown in FIG. 8A, when there is a utility pole 22 whose tip 21 is inclined in the north direction with respect to the ground edge portion 20, an image of the utility pole 22 taken from the south direction Becomes (b) of FIG. When the inclination of the utility pole 22 is only in the front-back direction, the center position of the ground edge portion 20 and the tip portion 21 is the same position in the left-right direction of the image, but the position and size of the tip portion 21 in the vertical direction of the image, Changes. This occurs when the position between the tip 21 and the camera changes. However, if the photographing distance from the tip 21 to the camera is long, the difference between the two photographing distances becomes smaller when there is no inclination and when there is no inclination, and the difference in the size and position of the tip 21 on the image can be understood. It will be difficult. In particular, for equipment such as the electric pole 22 having a very long overall length with respect to the size of the distal end portion 21, this tendency is increased. Even if such an image and a numerical tilt in the front-back direction are presented at the same time, it is difficult for the user to visually and intuitively grasp the tilt in the front-back direction. Also, even if the inclination angle is the same, it is necessary to change the evaluation scale on the image viewing side between the case where the inclination direction is the horizontal direction of the image and the case where the inclination direction is the front and rear direction, resulting in a display that is complicated and difficult to understand. I will.

Therefore, in order to easily display the direction of the inclination of the telephone pole, a bird's-eye view that can uniformly represent the inclination in all directions is desirable. Also, in a conventional visual inspection that determines whether there is a danger of collapse due to inclination, when the electric pole is viewed from the horizontal direction, the displacement of the tip is N times the diameter of the tip (where N is the height of the pole. If the value is different) or more, there is a method of determining that there is a risk of collapse. However, overhead view display is desirable from the viewpoint of consistency with such a conventional visual inspection.

Therefore, in the image generating unit 4 according to the present embodiment, regardless of the presence or absence of the inclination of the electric pole, the shape and size of the tip and the edge of the telephone pole in the state of no inclination, and the actual tip and the edge of the earth An output image of overhead view display of a telephone pole is generated in such an arrangement that the arrangement of the center positions of the power poles and the arrangement of the center positions of the marks of the front end portion and the ground edge portion have a similar relationship. This allows the user to compare the center-to-center distance between the tip and the landmarks on the generated output image and the diameter of the tip to obtain the inclination based on the same standard as in the case of the conventional visual inspection. And the risk of collapse due to the inclination can be determined.

In one aspect, such a bird's-eye view display may be performed for each of a plurality of telephone poles. In this case, it is effective to use it in combination with a road map, a drawing inside a building, or the like. For example, the position of the utility pole on the map is calculated from the identification number and the location information of the utility pole in the object information, and the ground edge and the tip are superimposed and displayed on the position according to the scale of the map.

FIG. 9 shows an example of an image in which the ground part and the tip of a plurality of telephone poles are displayed on a road map. In FIG. 9, there are two electric poles on each of the left and right sides of the road 23, and the ground edge and the tip of each electric pole are displayed. In this case, the user can visually confirm the displacement vectors of the tip portions and the ground portions of the plurality of utility poles simultaneously.

As described above, the image generation unit 4 may superimpose a map or a bird's-eye view photograph of a place where an object exists on the output image.

(Overall processing flow)
FIG. 10 is a flowchart illustrating an example of an image processing method executed by the image generation device 1 according to the first embodiment of the present invention. When the object information and the inclination information or the three-dimensional position information are input to the image generation device 1, the image generation device 1 starts processing.

First, the calculation unit 2 calculates, based on the object information and the inclination information or the three-dimensional position information, a first position in the output image corresponding to the position of the near-edge part and the tip part of the object when the object is overlooked. Then, a second position is calculated (S1). The calculation unit 2 also calculates the amount of displacement of the tip end in the horizontal direction with respect to the ground edge (S2).

Next, the determination unit 3 determines whether the displacement amount calculated by the calculation unit 2 is equal to or greater than a predetermined threshold (S3). If the displacement amount is less than the threshold, the image generation unit 4 sets the color, brightness, and shape of the mark when there is little risk of collapse based on the object information (S4). On the other hand, when the displacement amount is equal to or larger than the threshold, the image generation unit 4 sets the color, brightness, and shape of the mark when there is a risk of collapse based on the object information (S5).

Next, based on the first position and the second position, the image generation unit 4 generates an output image in which each mark is arranged (S6).

Next, the image generation device 1 determines whether or not all the objects have been processed (S7). If all objects have not been processed, the process returns to step S1, and if all objects have been processed, the entire process ends.

According to the image generation device according to the first embodiment of the present invention described above, based on the object information and the inclination information, the position and the displacement amount in the output image corresponding to the positions of the ground and the tip of the object are calculated. Based on the magnitude of the displacement amount, the color, brightness, shape, etc. of the mark indicating the ground edge and the tip are set, and the ground edge and the tip are determined based on the calculated position in the output image. By arranging the mark, the state of the inclination of the object is displayed in a bird's-eye view, and the equipment in which the displacement amount is larger than a predetermined value is displayed with a mark indicating that the inclination angle is large and there is a risk of collapse. Can be generated.

Here, in the present embodiment, the tip is described as the foremost part of the object, but the same effect can be obtained if the position is to be inspected in the inspection of the object. For example, the displacement of the tip may be expressed at a position 10 mm below the foremost part of the object, and if the position of the midway of the utility pole is required as the inspection position, the displacement of the midway position is marked with a mark. May be shown.

Although the underground part is described as being between the telephone pole and the ground, the same effect can be obtained at any other position as long as the position should be a reference for the displacement of the tip part. For example, a position 10 mm above the ground may be set as a ground position as a reference position, or when equipment is suspended from a ceiling or the like, the reference position is set to the ceiling side, and the lower side of the object is a tip. The displacement amount may be indicated by a mark as a part.

Furthermore, when the displacement is indicated based on the drawing in which the object is installed, the ground edge of the position where the object is actually installed is set as the installation position in the drawing, and the relative relationship between the ground edge and the tip is shown in the drawing. The same effect can be obtained by visually understanding the inclination state of the equipment even if the installation position is indicated.

Further, when the displacement amount of the distal end portion is equal to or larger than the threshold value, the image generating apparatus 1 notifies the user that the equipment is steeply inclined and there is a danger of collapse by a not-shown notifying unit. Good. Here, the notification may be performed by generating an image displaying a message or mark indicating danger, blinking a warning lamp, notifying by sound, or sounding a warning sound. Any means may be used as long as it can be understood that the inclination of the facility is dangerous. This allows the user to more easily grasp the state of inclination of each facility and the presence / absence of a facility having a large inclination angle and a risk of collapse.

In addition, when performing processing on a plurality of telephone poles, if there is a displacement vector having the same tendency in a telephone pole included in an area of a specific range, the image generation device 1 notifies the user of this. Is also good. At this time, a mark of a utility pole having a displacement vector having the same tendency may be displayed in a specific color or shape, or another mark may be added so as to be distinguished from other utility poles.

In such cases, there is a possibility that land subsidence has occurred due to the surrounding construction, etc.In this way, images showing the inclination of multiple poles on the map and displaying warnings are generated By doing so, it is possible to alert the user to the possibility that large damage such as a large number of utility poles will collapse at once will occur.

In one aspect, the image generation unit 4 may generate an output image on which support display is performed to display the displacement between the tip portion and the ground portion more clearly.

As an example of the support display, the image generation unit 4 may display a boundary (range) indicating a threshold value of the displacement amount of the tip. FIG. 11 is an example of an image generated by the image generation unit 4. In FIG. 11A, a circle 24 drawn by a broken line is a boundary indicating a threshold value of the displacement amount of the tip. In this case, the threshold value is set to the same value in all directions, and the circle 24 is a circle centered on the mark 18 indicating the ground edge. At this time, a number indicating how many times the threshold is larger than the diameter of the mark 17 indicating the tip may be displayed, or the radius of the circle 24 may be drawn, and the diameter of the tip 26 may be drawn on the radius. Alternatively, a scale (m is a positive integer) indicating a size of 1 / m may be displayed. Thereby, the user can compare the magnitude of the displacement vector 19 with the threshold on the drawing.

As an example of another support display, as illustrated in FIG. 11B, the image generation unit 4 includes a line (a supplementary image) that surrounds a mark of a tip and a ground edge where the displacement of the tip is equal to or larger than a threshold. ) 25 may be displayed, or as shown in FIG. 11C, the image generation unit 4 may perform blinking display on a utility pole mark whose displacement amount is equal to or larger than a threshold value. When the blinking display is performed, the blinking speed may be increased as the displacement amount is increased.

サ ポ ー ト With the support display as described above, the user can more easily check the telephone pole at risk of collapse.

Also, the color, brightness, and shape of the mark displayed on the generated image may be different between the tip portion and the ground portion. Hereinafter, the mark indicating the tip portion is simply referred to as a tip portion, and the mark indicating the ground portion is simply referred to as a ground portion. FIG. 12A shows an example in which the tip portion 21 is displayed as a square. At this time, even if the shape of the mark is changed, the size is adjusted so as not to be extremely changed. For example, an image displayed such that the diameter of the circle of the mark 17 indicating the distal end portion in FIG. 11A is equal to the length of one side of the square of the distal end portion 26 in FIG. Thus, the tip portion and the ground portion can be distinguished and displayed more easily.

In the case where the processing is performed on equipment other than the telephone pole, the image generation unit 4 may select a shape similar to the original shape for the mark of the tip part and the ground edge part. For example, in a case where the front end portion and the base portion of the original equipment have a rectangular shape and do not have a tapered structure, as shown in FIG. They may be displayed with rectangular marks of the same size. Thereby, a mark similar to the original equipment shape is displayed, so that a more intuitive and easy-to-understand display image can be generated.

In the above description, the case where the determination unit 3 uses one threshold has been described. However, using a plurality of thresholds, the degree of the risk of collapse with respect to the displacement of the tip with respect to the ground edge is determined, and the content of the determination is determined. Accordingly, the color, brightness, shape, or notification content of each mark may be changed. For example, the color of each mark may be changed to a color closer to green as the risk is lower, and closer to red as the risk is higher. The content and method of notification may be changed according to the degree of danger.

The image generation device 1 of the present embodiment can be connected to an external display device such as an LCD (Liquid Crystal Display) or an organic EL (Electro Luminescence) display, or a storage device such as a flash memory or a hard disk. The image generated by the device 1 can be displayed on a display device, stored in a storage medium as an image file, or an image stored in the storage medium can be read and displayed on the display device.

Each process of the present embodiment is performed by software processing by a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit), an ASIC (Application Specific Integrated Circuit), or an FPGA (Field Programable Hardware that can be processed by a hardware-based programmable array). .

The method for realizing the functions described in the present embodiment can also be provided as a program. The processing of each unit may be performed by recording the program on a computer-readable recording medium, reading the program recorded on the recording medium into a computer system, or downloading and executing the program from the Internet. Here, the “computer system” includes an OS and hardware such as peripheral devices.

「The“ computer system ”also includes a homepage providing environment (or display environment) if a WWW system is used.

The present invention is not limited to the embodiments described above, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

[Second embodiment]
A second embodiment according to the present invention will be described. When the cause of the inclination of the object is gentle land subsidence or the deterioration of the object, the inclination gradually increases with time. On the other hand, the timing of detecting the inclination depends on the frequency of inspection. In particular, objects such as telephone poles and signs are frequently inspected less frequently. As a result, the detection of the inclination is delayed, which may lead to collapse.

Therefore, in the image generation device according to the second embodiment of the present invention, when the displacement amount of the center position between the ground part and the tip part of the object is larger than a predetermined threshold, there is a warning that there is a risk of collapse due to inclination. In the image generation device that notifies the user, if an important facility such as a road or a house that is related to human life is in the tilt direction of the object, and is within a predetermined range from the object, the threshold is lowered and a small displacement is reduced. Even with the quantity, a display indicating that the pole is at risk of collapse and a warning notification image are generated. This allows the user to be notified of an object that may fall on an important facility at an early stage.

That is, the image generating apparatus according to the present embodiment has an anisotropy as a threshold used for the object when the object is close to a preset important facility, and is small in a direction toward the important facility. A first threshold adjuster for setting a threshold value.

According to the above configuration, in an image generating apparatus that generates an image in which the degree of inclination of an object is visually displayed, the position of the tip of the object and the position of a ground contacting the ground are displayed in a bird's-eye view, and the inclination of the object is displayed. By generating an image in which the size and the direction of the image are displayed in an easy-to-understand manner, the user can visually recognize the danger of collapse due to the inclination.

Furthermore, when there is an important facility such as a road or a private house in the direction of the inclination of the object and within a predetermined range, the fact is notified, or the fact that even if the degree of inclination is small is dangerous. By doing so, the user can quickly grasp the danger of the object falling on the road or the private house in the inclination direction, and as a result, it is possible to prevent the collapse that affects human life.

場合 The following describes a case where the object is a utility pole.

(Device configuration)
FIG. 13 is a functional block diagram showing the configuration of the image generation device 30 according to the second embodiment of the present invention. The image generation device 30 according to the second embodiment of the present invention has the same configuration as the image generation device 1, and accepts an external input of important facility position information indicating a position of an important facility. Are different. Accordingly, the configuration of the image generation device 30 is a configuration in which the determination unit 3 in FIG.

(Determining unit 6)
The determining unit (first threshold adjusting unit) 6 according to the second embodiment of the present invention sets a threshold by the same operation as that of the determining unit 3, and further reduces the threshold when there is an important facility in the inclination direction of the telephone pole. I do. Hereinafter, the process of lowering the threshold at this time will be described.

First, the determination unit 6 calculates the direction of the displacement vector as the tilt direction. Next, an area in the inclination direction and within a predetermined range from the telephone pole is set as a collapse prediction area.

FIG. 14 is a diagram for explaining a predicted collapse area. The collapse prediction area 44 indicates an area occupied by a utility pole when it falls down in the tilt direction, and has a rectangular shape in which the long side is the height of the utility pole and the short side is the diameter of the ground portion of the utility pole. In FIG. 14, a predicted collapse area 44 is an area in which the bottom side passes through the center of the ground part 41 and has the same direction as the displacement vector 43 indicating the inclination direction of the tip part 42 with respect to the ground part 41 of the telephone pole. Becomes

重要 Important facility location information is input to the determination unit 6. Here, the important facility position information is position information such as the shape, coordinates, area, latitude, and longitude of facilities such as roads and private houses. The determination unit 6 refers to the important facility position information and the position of the predicted collapse area to determine whether or not an important facility is included in the predicted collapse area, and lowers the threshold by a predetermined value if the important facility is included. Perform processing.

(Overall processing flow)
FIG. 15 is a flowchart illustrating an example of an image processing method executed by the image generation device 30 according to the second embodiment of the present invention.

15 is different from the flowchart of FIG. 10 in that step S100 is added after step S2, and thus only step S100 will be described. The flowchart of FIG. 16 is a flowchart showing the processing of step S100 of FIG. 15 in more detailed steps. The determination unit 6 calculates the tilt direction from the relative position information (S101). The determination unit 6 sets a collapse prediction area based on the information on the shape of the utility pole in the object information and the inclination direction (S102). The determination unit 6 refers to the important facility position information and determines whether an important facility is included in the predicted collapse area (S103). If an important facility is included in the collapse prediction area, the threshold is lowered by a predetermined value (S104), otherwise, the process ends.

In this way, the fall prediction area is calculated by referring to the direction of the inclination of the object, and when the important facility is included in the fall prediction area, it is possible to fall on the important facility by lowering the threshold value for the displacement amount of the tip portion. It is possible to notify the user that the object having the inclination has a tilt even if the tilt is small.

At this time, the image generation unit 4 may generate an image displaying an area where an important facility is located or a predicted area where a utility pole is to be notified of a warning, whereby the user can more clearly understand the contents of the notification.

Furthermore, the image generation unit 4 may generate an image displaying a boundary indicating the threshold value set by the determination unit 6. At this time, it is easy to understand that the threshold is calculated and displayed not only in the inclination direction of the telephone pole but also in all directions of the telephone pole.

FIG. 17 is an example of an image displaying a threshold value for the inclination. (A) of FIG. 17 is an example of an image displaying a threshold value when there is no important facility around a telephone pole. The threshold value for the amount of displacement of the tip 45 is displayed as a circular dashed line 47 centered on the edge 46. Since there is no important facility in the vicinity, the process of lowering the threshold is not performed, and the threshold is the same in all directions.

On the other hand, FIG. 17B is an example of an image displaying a threshold value when there is an important facility around a telephone pole. At this time, an area 48 indicating a road which is an important facility exists on the left side of the telephone pole. A threshold value for the amount of displacement of the distal end portion 49 is indicated by a broken line 51 centered on the ground portion 50. Here, in the broken line 51, the reason why the threshold value in a certain direction of the area 48 is lowered is that important facilities are included in the collapse prediction area, and the processing of lowering the threshold value has been performed.

As a result, the user can intuitively understand what kind of criterion is used for warning about the inclination, and furthermore, if the tip of the telephone pole is displaced in any direction and in the future, the collapse Learn about the dangers that arise.

(4) When lowering the threshold value, the risk may be determined to be higher as the ratio of the area where the important facility occupies in the predicted collapse area increases, and the threshold value may be lowered further. As a result, it is possible to give a notification in consideration of the magnitude of the damage.

In addition, the importance of the important facilities may be separately ranked, and the higher the rank, the lower the threshold value may be. This allows the user to be notified of an object that is more likely to fall on an important facility as soon as possible.

Also, considering the possibility that the telephone pole will not fall straight down or roll back after it collapses, the area of the collapse prediction area should be set considering margin such as expanding around the bottom of the initially set area Is also good. This further improves safety.

[Third embodiment]
A third embodiment according to the present invention will be described. In the case of an object that is connected to a surrounding object by some connection means, when one object collapses, there is a possibility that the objects coupled to it collapse together. Examples of such objects include utility poles connected by electric wires and poles that support gate-shaped signs that cross roads.

Therefore, in the image generation device according to the third embodiment of the present invention, when the displacement amount of the center position between the ground and the tip of the object is larger than a predetermined threshold, a warning that there is a risk of collapse due to the inclination In the image generating apparatus which notifies the user of the above, the threshold value is reduced in the above-mentioned period and an alert is issued even with a small displacement amount for an object having a risk of collapse of the connected peripheral object. That is, the image generating apparatus generates an output image indicating the degree of inclination of a plurality of objects, and the plurality of objects include an object group connected to each other within a predetermined range, and the displacement amount of the object group is a threshold. A second threshold adjuster that reduces a threshold used for the object group when an object exceeding the threshold is included. Thus, when the connected peripheral object collapses, the user can be notified that there is an object that is likely to collapse together by being pulled by the tension generated in the coupling means.

場合 The following describes a case where the object is a utility pole.

(Device configuration)
FIG. 18 is a functional block diagram showing the configuration of the image generation device 40 according to the third embodiment of the present invention. The image generation device according to the third embodiment of the present invention has the same configuration as the image generation device 1 and accepts external input of connection information indicating the presence or absence of connection between objects and the connection direction. Only the content of the processing of the section differs. Accordingly, the configuration of the image generation device 40 is a configuration in which the determination unit 3 in FIG.

(Determining unit 7)
The determining unit (second threshold adjusting unit) 7 in the third embodiment of the present invention sets a threshold by the same operation as that of the determining unit 3, and among the utility poles connected by electric wires within a predetermined range, When there is an object whose displacement amount of the tip exceeds the threshold value, a process of lowering the threshold value is performed.

Hereinafter, the process of lowering the threshold at this time will be described. The determining unit 7 refers to the connection information, and among the electric poles connected by the electric wires within the predetermined range, if there is a tilt electric pole whose displacement amount at the tip is equal to or more than the threshold, the threshold is reduced by a predetermined value. I do. FIG. 19 is a diagram illustrating the relationship between the amount of displacement of adjacent utility poles connected by electric wires and a threshold value.

In FIG. 19, the tip 52 and the underground 53 of the utility pole to be inspected are displayed, and the tip 54 and the underground 55 of the adjacent utility pole are displayed. The distal end 52 and the distal end 54 are connected by an electric wire 56. Here, the threshold value for the displacement of the electric pole to be checked is a broken line 57, and the threshold value for the displacement of the adjacent electric pole is a broken line 58. The electric pole to be inspected and the adjacent electric pole have the same structure, and originally set the same threshold, but the tip 54 of the adjacent electric pole exceeds the threshold, and there is a risk of collapse. For this reason, the threshold of the utility pole to be inspected has been lowered.

At this time, the smaller the distance from each inclined power pole is, the larger the number is, and the larger the decrease of the threshold is. If there is a power pole tilted in the opposite direction, the threshold may be set to be greatly reduced to notify the user that there is a risk of collapse. At this time, the threshold may be set to 0 and a warning may be forcibly notified.

Further, in the present embodiment, the threshold value of the target object is changed when the displacement amount of the adjacent object exceeds the threshold value, but may be applied when the displacement amount of the adjacent object does not exceed the threshold value. The threshold is changed based on.

(Overall processing flow)
FIG. 20 is a flowchart illustrating an example of an image processing method executed by the image generation device 40 according to the third embodiment of the present invention.

20 is different from the flowchart of FIG. 10 in that step S200 is added after step S3, so only step S200 will be described. The flowchart of FIG. 21 is a flowchart illustrating the process of step S200 of FIG. 20 in more detailed steps.

The determination unit 7 refers to the connection information and determines whether or not there is a tilted power pole within a predetermined range and having a tip end displacement equal to or larger than a threshold value among the power poles connected to the power pole to be inspected (S201). ).

When there is a tilted power pole, the determination unit 7 determines whether the number of tilted power poles is plural and whether the positions are on both sides of the power pole to be inspected (S202). To end.

If both sides, the threshold is lowered by a first predetermined value or set to 0 (S203); if not, the threshold is lowered by a second predetermined value (S204), and the process is terminated. Here, it is assumed that the first predetermined value is larger than the second predetermined value.

Here, in the processing of FIG. 20, the method of correcting the threshold with reference to the connection information after setting the threshold has been described. However, the method may be performed simultaneously with the setting of the threshold. In other words, the same effect can be obtained by setting a low threshold value when there is an adjacent inclined power pole and a high threshold value when there is no adjacent inclined power pole when setting the threshold value.

In this way, in accordance with the situation of the displacement of the connected peripheral object, by lowering the threshold value for the displacement amount of the tip, in consideration of the risk of collapse of the peripheral object, a warning to further enhance safety, The user can be notified.

At this time, the image generation unit 4 may generate an image in which the display is performed by connecting the front end portion or the ground portion connected by the electric wire with a line. This allows the user to check which telephone poles are connected and how, so that the contents of the notification can be understood more clearly.

In the above description, the method in which the determination unit 7 sets the threshold value based on the displacement of the surrounding utility pole with reference to the connection information has been described. However, the setting of the threshold value in consideration of the tension applied in the connection direction with reference to the connection information may also be performed. It can be carried out.

For example, a description will be given of a case where connecting means (electric wires) are provided on both sides of a utility pole, and the tip of the utility pole is displaced in a direction orthogonal to the connecting direction (the direction in which the wires exist).

場合 If there are utility poles connected on both sides of the utility pole, there is wire tension in the direction of the adjacent utility pole. Nevertheless, if the electric pole is inclined in a direction perpendicular to the electric wire, there is a high possibility that a strong force is applied to the electric pole, and there is a possibility that the electric pole is cracked or broken down. Therefore, by lowering the threshold value in the direction closer to the direction perpendicular to the electric wire, the user is notified early that there is a power pole that has a high risk of being subjected to a force on the main body of the power pole and being broken and collapsed. Can be.

FIG. 22 shows the displacement of the utility pole and the threshold value at this time. In FIG. 22, the direction of the electric wire 59 is the up and down direction, and the tip 60 of the electric pole is displaced to the left with respect to the ground portion 61. In this case, the threshold value for the displacement is reduced as the direction is more orthogonal to the direction of the electric wire. Therefore, the boundary of the threshold value is a vertically long elliptical shape as shown by a broken line 62.

On the other hand, the case of a column supporting the overhead line of a train and a column supporting a gate-shaped sign will be described. In this case, the pairs installed on both sides of the track or the road are connected by a metal part across the track or the road. In this case, since the tension is applied to only one side, if it is inclined in the connection direction, its own weight due to the tension and the inclination is combined, and the risk of collapse is increased. Therefore, in this case, if the threshold value is greatly reduced in the direction parallel to the overhead line, it is possible to notify the user at an early stage that there is a telephone pole with a higher risk of collapse.

FIG. 23 shows the displacement of the utility pole and the threshold value at this time. In FIG. 23, the tip 63 and the tip 64 of the pair of two electric poles are vertically connected by a metal part 65, and the upper electric pole has the tip 63 at the upper left with respect to the ground part 67. The lower end of the utility pole has its tip end portion 64 displaced to the upper left with respect to the ground portion 68. In this case, since the threshold value for the displacement decreases in the direction parallel to the connection direction, the boundary of the threshold value becomes a horizontally long elliptical shape as shown by a broken line 69 or a broken line 70.

As described above, the determination unit 7 has anisotropy as a threshold used for an object connected to only one other object in the object group connected within the predetermined range, and In the direction, a threshold value is set to be small, and as a threshold value used for an object connected to the other two objects existing in directions opposite to each other, the object has anisotropy and is orthogonal to the connection direction. A threshold value that decreases in the direction may be set.

(Another processing flow of the determination unit 7)
FIG. 24 is a flowchart illustrating an example of another process of the determination unit 7. Step S200 shown in FIG. 24 is an example of another process of step S200 in FIG. 20, and the process other than step S200 does not change. Therefore, only the content of another process of step S200 will be described.

The determining unit 7 refers to the connection information and detects the connection direction of the utility pole to be checked (S205). The determination unit 7 determines whether the number of connected utility poles is one (S206). When the number of connected utility poles is one, the determination unit 7 lowers the threshold value more in the direction parallel to the connection direction (S207). If the number of connections of the utility pole is not one, it is determined whether the number of connections is two and the direction is opposite to the utility pole (S208). If it is in the opposite direction, the determination unit 7 lowers the threshold value in the direction orthogonal to the connection direction (S209). If not, the process ends.

As described above, by referring to the connection direction of the utility pole included in the connection information, the direction in which the risk of collapse is high is calculated in each of the case where the connection direction is on both sides and the case where the connection direction is on only one side, and the direction is calculated. By lowering the threshold value for the displacement of the power pole, it is possible to notify the user at an early stage of a warning for a utility pole having a high risk of collapse.

The image generation unit 4 may display a line imitating an electric wire in a connecting direction from a utility pole in an image to be generated. This allows the user to check the direction of the tension generated on the telephone pole, so that the contents of the notification can be understood more clearly.

(Fourth embodiment)
A fourth embodiment according to the present invention will be described. Objects are damaged by various factors such as aging and accidents. Damage includes cracks, rust, peeling, floating, etc., but there is often a close relationship between damage and inclination of an object. Further, even if the amount of inclination of the object is small, the durability of the damaged object is low, and the inclination may advance rapidly.

Therefore, in the image generation device according to the fourth embodiment of the present invention, referring to the damage information including the position and size of the damage of the object, if there is damage, the threshold is lowered, and the damage is performed in the tilt direction or the opposite direction. If there is, set to lower the threshold further. That is, the image generation device according to the present embodiment includes the third threshold adjustment unit that reduces the threshold for the object when the object is damaged. Thus, it is possible to notify the user of the danger of collapse due to the inclination, while taking into account a decrease in the durability of the object due to damage.

場合 The following describes a case where the object is a utility pole.

(Device configuration)
FIG. 25 is a functional block diagram illustrating a configuration of an image generation device 90 according to the fourth embodiment of the present invention. The image generating apparatus according to the fourth embodiment of the present invention has the same configuration as the image generating apparatus 1, except that the input of the damage information from outside is performed, and the processing of the determination unit and the image display unit is different. Accordingly, the configuration of the image generation device 90 is a configuration in which the determination unit 3 in FIG.

(Determining unit 8)
The determining unit 8 according to the fourth embodiment of the present invention sets a threshold by the same operation as the determining unit 3. Next, referring to the damage information, if there is damage, a setting is made to lower the threshold. Further, if there is breakage in the displacement direction, the threshold is set to be further lowered. Here, the presence or absence of breakage in the displacement direction is confirmed by projecting the breakage position on the ground.

FIG. 26 is a diagram for explaining the position of the damage projected on the ground part of the utility pole. In FIG. 26, a crack 81 and a crack 82 exist on a utility pole 80. Here, assuming that the electric pole 80 does not have a taper, and assuming that the bottom side of the electric pole 80 is a ground edge, a position where the position of the left end of the crack 81 and the position of the right end of the crack 82 are vertically projected on the ground edge is: The crack position 84 is reached.

投影 If there is a taper, perform projection in consideration of the taper. For example, the utility pole may be horizontally sectioned at a damaged position, and the position on the circle at the ground edge corresponding to the position on the circle in the sectional view at that time may be set as the projection position.

FIG. 27 is a diagram for explaining the positional relationship between the direction of displacement of the distal end portion and the crack. In FIG. 27, a displacement vector 86 connecting the ground part 83 and the tip part 85 indicates the direction of inclination of the utility pole. Here, if the two intersections of the line 87 extending the displacement vector 86 and the ground part 83 are on the crack position 84, the determination unit 8 lowers the threshold. Note that, when there is a crack in the direction opposite to the displacement direction, the same processing as when there is a crack in the displacement direction is performed.

That is, the determination unit 8 may set a threshold value that has anisotropy and decreases in a specific direction and a direction opposite to the specific direction, as a threshold value for an object having damage on a specific direction side of the utility pole.

(Overall processing flow)
FIG. 28 is a flowchart illustrating an example of an image processing method executed by the image generation device 90 according to the third embodiment of the present invention.

フ ロ ー チ ャ ー ト The flowchart of FIG. 28 is different from the flowchart of FIG. 10 in that step S300 is added after step S3, so only step S300 will be described. The flowchart of FIG. 29 is a flowchart showing the processing of step S300 of FIG. 28 in more detailed steps.

The determination unit 8 determines whether there is damage based on the damage information (Step S301). If there is damage, the determination unit 8 lowers the threshold by a first predetermined value (step S302), and otherwise ends the process. The determination unit 8 calculates a damage position on the ground edge based on the damage information (Step S303). The determination unit 8 determines whether there is damage in the displacement direction using the displacement direction and the damage position (step S304). If there is a break in the displacement direction, the determination unit 8 lowers the threshold by a second predetermined value (step S305), and otherwise ends the process.

As described above, by referring to the damage information and lowering the threshold value for the amount of displacement of the tip according to the presence or absence of damage and the position of the damage, the collapse of the object while considering the deterioration of the durability of the object due to the damage is considered. It is possible to notify a user of a warning about a pole having a high risk at an early stage.

{Circle around (4)} The image generation unit 4 may refer to the damage information and, if there is damage, notify the user to that effect. For example, as shown in FIG. 27, an image in which the crack position 84 is displayed on the contour of the mark of the ground portion is generated.

画像 In addition, if there is a crack position projected on the tip portion or the ground edge portion in the displacement direction of the utility pole or in the opposite direction, the image generation section 4 may notify the user of the fact. For example, as shown in FIG. 27, an image displaying a line 87 obtained by extending the displacement vector 86 may be generated.

Thereby, the user can grasp whether there is a possibility that the durability is reduced due to the breakage, and further, by simultaneously checking the direction of displacement and the position of the breakage, it is possible to grasp the state of the utility pole in more detail.

[Example of software implementation]
The control blocks (particularly, the calculation unit 2, the determination unit 3, the image generation unit 4, and the threshold setting unit 5) of the image generation device 1 are realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like. Or may be realized by software.

In the latter case, the image generating device 1 includes a computer that executes instructions of a program that is software for realizing each function. This computer includes, for example, at least one processor (control device) and at least one computer-readable recording medium storing the program. Then, in the computer, the object of the present invention is achieved by the processor reading the program from the recording medium and executing the program. As the processor, for example, a CPU (Central Processing Unit) can be used. Examples of the recording medium include "temporary tangible media" such as ROM (Read Only Memory), tapes, disks, cards, semiconductor memories, and programmable logic circuits. Further, a RAM (Random Access Memory) for expanding the program may be further provided. Further, the program may be supplied to the computer via an arbitrary transmission medium (a communication network, a broadcast wave, or the like) capable of transmitting the program. Note that one embodiment of the present invention can also be realized in the form of a data signal embedded in a carrier wave, in which the above-described program is embodied by electronic transmission.

[Summary]
An image generation device according to an aspect 1 of the present invention is an image generation device that generates an image indicating a degree of inclination of an object, and corresponds to a position of a reference part and a position of a part of interest in the object when the object is overlooked. A calculating unit for calculating a first position and a second position in the image, and an image generating unit for generating the image so as to indicate the first position and the second position calculated by the calculating unit Wherein the site of interest is a site farther from the installation portion of the object than the reference site.

In the image generation device according to the second aspect of the present invention, in the first aspect, the image generation unit arranges a first mark indicating the reference portion at the first position in the image, and A second mark may be arranged at the second position to indicate whether or not the horizontal displacement of the part of interest with respect to the reference part exceeds a threshold value.

The image generation device according to an aspect 3 of the present invention, in the aspect 2, wherein the image generation unit is configured to: (i) determine the first mark in the image according to whether the displacement amount exceeds the threshold value. And at least one of the second marks is different in at least one of the color, brightness and shape, and (ii) the range of the second position corresponding to the displacement being within the threshold. And / or (iii) including an auxiliary image indicating that the displacement amount has exceeded the threshold value, thereby indicating whether or not the displacement amount exceeds the threshold value.

The image generating device according to an aspect 4 of the present invention, in the aspect 2 or 3, wherein the image generating unit is configured to determine a distance between the first position and the second position with respect to a size of the second mark. The image may be generated such that a ratio of the displacement amount to a size of a horizontal cross section of the site of interest when the object is not tilted.

An image generation apparatus according to a fifth aspect of the present invention, in any one of the second to fourth aspects, further includes a notifying unit that notifies a risk of the object falling when the displacement amount exceeds the threshold value. You may.

The image generation device according to an aspect 6 of the present invention, according to the above aspects 2 to 5, wherein the threshold used for the object has anisotropy when the object is close to a preset important facility. And it may be provided with a 1st threshold adjuster which sets up a threshold which becomes small in the direction to the important facility.

An image generating apparatus according to an aspect 7 of the present invention is the image generating apparatus according to the above aspects 2 to 6, wherein the image generating apparatus generates the image indicating the degree of inclination of the plurality of objects, A second threshold adjuster configured to reduce the threshold used for the object group when the object group includes mutually connected objects and the object group includes an object whose displacement amount exceeds the threshold value; May be provided.

The image generation device according to an eighth aspect of the present invention, in the seventh aspect, wherein the second threshold adjustment unit is configured such that, as the threshold used for an object connected to only one other object in the object group, Anisotropy is set, a threshold value is set to be small in the direction of the connection, and as the threshold value used for the object connected to the other two objects existing in the directions opposite to each other, anisotropy is set. The threshold value may be set to be smaller in a direction orthogonal to the connection direction.

The image generating apparatus according to the ninth aspect of the present invention, in any one of the first to eighth aspects, further includes a third threshold adjusting unit that reduces the threshold for the object when the object is damaged. Good.

The image generation device according to an aspect 10 of the present invention, in the aspect 9, wherein the third threshold adjustment unit has anisotropy as the threshold for an object whose damage is on a specific direction side of the object. A threshold value that decreases in the direction and the direction opposite to the specific direction may be set.

In the image generation device according to an eleventh aspect of the present invention, in the first to tenth aspects, the image generation unit may superimpose a map or a bird's-eye view photograph of a place where the object is present on the image. .

An image generation device according to an aspect 12 of the present invention is an image generation method in which the image generation device generates an image indicating a degree of inclination of the object, wherein the image generation device looks down on the object when the object is overlooked. Calculating a first position and a second position in the image corresponding to the positions of the reference region and the region of interest, respectively, and the image generation device indicates the first position and the second position Generating the image as described above, wherein the site of interest is a site that is farther from the installation part of the object than the reference site.

The image generation device according to each aspect of the present invention may be realized by a computer. In this case, the image generation device is provided to the computer by operating the computer as each unit (software element) included in the image generation device. The image generation program of the image generation apparatus to be realized by the present invention, and a computer-readable recording medium that records the program are also included in the scope of the present invention.

The present invention is not limited to the embodiments described above, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

Claims (14)

1. An image generation device that generates an image indicating a degree of inclination of an object,
   A calculating unit that calculates a first position and a second position in the image corresponding to the positions of the reference region and the region of interest in the object when the object is overlooked,
   An image generation unit that generates the image so as to indicate the first position and the second position calculated by the calculation unit,
   The image generating apparatus according to claim 1, wherein the region of interest is a region that is farther from the installation portion of the object than the reference region.
2. The image generation unit, in the image,
   Placing a first mark indicating the reference portion at the first position;
   Placing a second mark indicating the site of interest at the second position;
   The image generation apparatus according to claim 1, wherein the apparatus is configured to indicate whether a horizontal displacement amount of the site of interest relative to the reference site exceeds a threshold.
3. The image generation unit, in the image,
   (i) making at least one of the color, brightness, and shape of at least one of the first mark and the second mark different depending on whether the displacement amount exceeds the threshold value,
   (ii) indicating the range of the second position corresponding to the displacement being within the threshold, and (iii) including an auxiliary image indicating that the displacement has exceeded the threshold. The image generating apparatus according to claim 2, wherein one indicates whether the displacement amount exceeds a threshold value.
4. The image generation unit may be configured such that a ratio of a distance between the first position and the second position to a size of the second mark is a horizontal cross section of the site of interest when the object is not inclined. The image generation apparatus according to claim 2, wherein the image is generated so as to indicate a ratio of the displacement amount to a size.
5. The image generating apparatus according to any one of claims 2 to 4, further comprising: a notifying unit that notifies a risk of the object falling when the displacement amount exceeds the threshold value.
6. When the object is close to a preset important facility, a first threshold value that has anisotropy as the threshold value used for the object and sets a threshold value that decreases in a direction toward the important facility The image generating apparatus according to any one of claims 2 to 5, further comprising an adjusting unit.
7. The image generation device generates the image indicating the degree of inclination of a plurality of objects, the plurality of objects include an object group connected to each other within a predetermined range, the displacement amount in the object group is The apparatus according to any one of claims 2 to 6, further comprising a second threshold adjusting unit that reduces the threshold used for the group of objects when an object exceeding the threshold is included. An image generation device according to claim 1.
8. The second threshold adjustment unit is configured to include, among the object group,
   As the threshold used for the object connected to only one other object, having an anisotropy, set a threshold that becomes smaller in the direction of the connection,
   As the threshold used for the object connected to the other two objects existing in the directions opposite to each other and having an anisotropy, a threshold that decreases in the direction orthogonal to the direction of the connection is set. The image generation device according to claim 7, wherein:
9. The image generating apparatus according to any one of claims 1 to 8, further comprising: a third threshold adjusting unit that reduces the threshold for the object when the object is damaged.
10. The third threshold adjuster sets an anisotropy threshold for the object having a breakage in a specific direction of the object, and sets a threshold that decreases in the specific direction and in a direction opposite to the specific direction. The image generating apparatus according to claim 9, wherein:
11. The image generating apparatus according to any one of claims 1 to 10, wherein the image generating unit superimposes a map or a bird's-eye view picture of a place where the object is present on the image.
12. An image generation method, wherein the image generation device generates an image indicating a degree of inclination of the object,
    The image generation device calculates a first position and a second position in the image corresponding to the positions of the reference region and the region of interest in the object when the object is overlooked,
    The image generation device generates the image to indicate the first position and the second position,
    The image generation method according to claim 1, wherein the region of interest is a region farther from the installation part of the object than the reference region.
13. An image generation program for causing a computer to function as the image generation device according to claim 1, wherein the image generation program causes a computer to function as the calculation unit and the image generation unit.
14. A computer-readable recording medium recording the image generation program according to claim 13.

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