JP-2026074626-A - Reinforcement bar measurement system, reinforcement bar measurement method, and reinforcement bar measurement program

JP2026074626AJP 2026074626 AJP2026074626 AJP 2026074626AJP-2026074626-A

Abstract

[Problem] To enable measurement of the rear reinforcing bars located at the back of the reinforcement arrangement in a reinforcement measurement system. [Solution] The reinforcement measurement system of the embodiment comprises an image processing unit that converts the viewing direction of an image so that the vertical and horizontal directions of the image correspond to the vertical and horizontal directions of the reinforcement; a position storage unit that stores at least temporarily the positions of each identified reinforcement; a designation unit that designates a predetermined length for each reinforcement area indicated at each reinforcement position based on the actual dimensions shown on the reference object; a distance information input unit that inputs distance information for forming a three-dimensional object with a first reinforcement area located in front of each reinforcement area as one surface; and a rear reinforcement area generation unit that generates a third reinforcement area on the image processed by the image processing unit for a second reinforcement area formed in the reinforcement located on the rear side of the formed three-dimensional object opposite to the first reinforcement area, and measures the spacing of the rear reinforcement by comparing a predetermined length of reinforcement obtained from the designation unit with an arbitrary rear reinforcement selected from the third reinforcement area. [Selection Diagram] Figure 1

Inventors

岩本洋一郎
宮越亮
上島顕
千葉崇宏
吉田恭平
坪井一晃
津金佑哉
鈴木洋一
吉岡憲一
中村雅樹

Assignees

コムシス情報システム株式会社
日本高圧コンクリート株式会社

Dates

Publication Date: 20260507
Application Date: 20241021

Claims (11)

An image processing unit that transforms the viewing direction of an image based on an image taken from a single viewpoint so that the vertical and horizontal directions of the image correspond to the vertical and horizontal directions of the reinforcement bar, In the image including a reference object that shows the actual size, a position storage unit receives a process to identify the position of each reinforcing bar along the longitudinal direction of the reinforcing bar, and stores each identified reinforcing bar position at least temporarily. For each reinforcement area indicated at each of the aforementioned reinforcement positions, a designation section is provided to specify a range of a predetermined length based on the actual dimensions shown in the reference object. A distance information input unit for inputting distance information to form a three-dimensional object with the first reinforcement area located in front of each of the aforementioned reinforcement areas as one surface, A rear reinforcement region generation unit generates a third reinforcement region on an image processed by the image processing unit, which generates a second reinforcement region formed in the reinforcement located on the rear side opposite to the first reinforcement region of the formed three-dimensional object, Equipped with, A reinforcement measurement system characterized by comparing a predetermined length of reinforcement obtained from the designated section with any rear reinforcement selected from the third reinforcement area, and measuring the spacing between rear reinforcement bars.
The designated section specifies the range based on a reference object in the captured image, using a predetermined length in the image and a predetermined width in a direction perpendicular to the length direction. The reinforcement bar measurement system according to claim 1, characterized by the following:
The reinforcement bar measurement system according to claim 1 or 2, characterized in that the solid formed by the distance input by the distance information input unit is a rectangular parallelepiped.
The reinforcement bar measurement system according to any one of claims 1 to 3, characterized in that any rear reinforcement bar selected from the second reinforcement area is selected from the screen displaying the reinforcement bar arrangement.
The reinforcement bar measurement system according to any one of claims 1 to 3, characterized by measuring any front reinforcement bar selected from the first reinforcement area and any rear reinforcement bar selected from the second reinforcement area.
A method for measuring reinforcement placement, A transformation step that transforms the viewing direction of an image based on an image taken from a single viewpoint, so that the vertical and horizontal directions of the image correspond to the vertical and horizontal directions of the reinforcement bar, The image includes a reference object that shows the actual size, and undergoes a process to identify the position of each reinforcing bar along the longitudinal direction of the reinforcing bar, and stores each identified reinforcing bar position at least temporarily. A designation step in which, for each reinforcement area indicated at each reinforcement position, a predetermined length is specified based on the actual dimensions shown in the reference object, An input step of inputting distance information for forming a three-dimensional object with the first reinforcement area located in the foreground of the image processed by the image processing unit as one surface, A generation step of generating a second reinforcement region formed in the reinforcement located on the inner side opposite to the first reinforcement region of the formed three-dimensional object, Equipped with, A reinforcement measurement method, which is a computer that measures the spacing of the rear reinforcement bars by comparing a predetermined length of reinforcement bars obtained from a designated area with any rear reinforcement bars selected from the second reinforcement area.
The designated section, based on a reference object in the captured image, performs a designation step in which it designates the range by a predetermined length in the image and a predetermined width in a direction perpendicular to the length direction. The reinforcement measurement method according to claim 6, characterized by the above.
The reinforcement bar measurement method according to claim 6 or 7, characterized in that the three-dimensional object formed by the input step is a rectangular parallelepiped.
The reinforcement bar measurement method according to any one of claims 6 to 8, characterized by a selection step of selecting any rear reinforcement bar from the second reinforcement bar area using a screen displaying the reinforcement bar arrangement.
A reinforcement bar measurement system according to any one of claims 6 to 9, characterized by a measurement step of measuring an arbitrary front reinforcement bar selected from the first reinforcement area and an arbitrary rear reinforcement bar selected from the second reinforcement area.
A transformation step that transforms the viewing direction of an image based on an image taken from a single viewpoint, so that the vertical and horizontal directions of the image correspond to the vertical and horizontal directions of the reinforcement bar, The image includes a reference object that shows the actual size, and undergoes a process to identify the position of each reinforcing bar along the longitudinal direction of the reinforcing bar, and stores each identified reinforcing bar position at least temporarily. A designation step in which, for each reinforcement area indicated at each reinforcement position, a predetermined length is specified based on the actual dimensions shown in the reference object, An input step of inputting distance information for forming a three-dimensional object with the first reinforcement area located in the foreground of the image processed by the image processing unit as one surface, A generation step of generating a second reinforcement region formed in the reinforcement located on the inner side opposite to the first reinforcement region of the formed three-dimensional object, Equipped with, A rebar measurement program, which is a computer that measures the spacing between rebars by comparing a predetermined length of rebar obtained from a designated area with any rebar selected from the second rebar area, is described in a readable and executable format for a rebar measurement system.

Description

This invention relates to a reinforcement bar measurement system, a reinforcement bar measurement method, and a reinforcement bar measurement program. Traditionally, a method has been used at construction sites and building sites to measure rebar spacing, diameter, and other parameters by analyzing images captured with digital cameras. This measurement method is excellent in terms of shortening construction time and reducing costs. For example, a system is known that transforms the viewing direction so that the vertical and horizontal directions of the captured image correspond, identifies the presence or absence of reinforcing bars using machine learning, identifies pixels in the direction of the reinforcing bars, and determines whether the proportion of pixels exceeds a predetermined threshold to inspect the reinforcement arrangement (Patent Document 1). Furthermore, a system is known that measures the length of reinforcement based on a reference object that indicates the actual size contained in the image (Patent Document 2). Japanese Patent Publication No. 2024-059225Patent No. 7508750 Functional block diagram showing an example in Embodiment 1A diagram showing an example of an image captured in Embodiment 1.This figure shows an example of an image obtained by projecting the captured image in Embodiment 1.A diagram showing an example of a photographed image of a reference object representing actual size in Embodiment 1.External view showing an example of the configuration of the reinforcement bar measurement system in Embodiment 1.This figure shows an example of a reinforcement bar measurement system in another embodiment.This figure shows an example of a method for estimating the length of the inner reinforcing bar in Embodiment 1.This figure shows an example of the processing flow of the reinforcement bar measurement system in Embodiment 1.This figure shows an example of the screen for setting the range of the inner reinforcing bars in the reinforcement measurement system in Embodiment 1.This figure shows an example of the screen for selecting the rear reinforcement bars in the reinforcement measurement system of Embodiment 1.This figure shows an example of the screen displaying the measurement results for the inner rebar in the reinforcement measurement system of Embodiment 1. This invention, in principle, utilizes an electronic computer, but it can also be realized through software, hardware, and the collaboration of software and hardware. This invention is described on the premise that the rebar measurement system is configured to function on a single physical server. However, it is not limited to this configuration, and multiple servers may be provided, and information and data may be exchanged between them to perform various functions in cooperation or collaboration. For example, it may be implemented using multiple cloud servers. The embodiments of the present invention will be described below with reference to the figures. However, the present invention is not limited to these embodiments and can be implemented in various ways without departing from its essence. <First Embodiment> The first embodiment will mainly describe claim 1. (System Overview) As shown in Figure 1, the reinforcement measurement system 100 includes a shooting unit 110, a storage unit 120, an image processing unit 130, a communication unit 140, a designation unit 150, a distance information input unit 160, a deep reinforcement area generation unit 170, a control unit C, and a display unit D. The imaging unit 110 is, for example, an imaging means provided in a tablet terminal, smartphone terminal, or PC terminal. The imaging data obtained by the imaging means is stored as image data in the storage unit 120 via the operation of a touch panel or save button, or via the communication unit 140. The image processing unit 130 converts the viewing direction of the image so that the vertical and horizontal directions of the image correspond to the vertical and horizontal directions of the reinforcement. The communication unit 140 exchanges information with the outside. The designation unit 150 specifies a range of a predetermined length based on the actual dimensions shown on a reference object placed on the reinforcement, which is at least temporarily stored. The distance information input unit 160 inputs distance information for forming a three-dimensional object with the first reinforcement area located in the foreground as one surface. The rear reinforcement area generation unit 170 sets a second reinforcement area to be formed on the reinforcement located on the rear side of the formed three-dimensional object, opposite to the first reinforcement area. The control unit C and display unit D will be described later. (Photography Department 110) The imaging unit 110 has one or more optical systems (not shown), i.e., lenses, apertures, and shutters. The imaging unit 110 may also have a focusing function. The imaging unit 110 also ha