KR100701521B1 - System for 2d plane image pick up of container and a method thereof - Google Patents

Abstract

A system and a method for obtaining a 2D(Dimensional) surface image of a container are provided to correctly and smoothly output entire 2D surface image of the container by calculating an overlapped partial image between two cameras, regenerating the overlapped partial image through smoothing and combining, and combining each regenerated partial images. A gatehouse(10) passes a vehicle loading the container. A location detector comprises multiple sensors(200a-200n,200a'-200n') for detecting incoming or outgoing of the container. An image obtainer includes the cameras(310a-310c) for obtaining the 2D surface image of the container and a distance measurer(320a-320b) for measuring a distance from the container among the cameras. A controller controls an operation of each part by receiving a signal for reporting incoming/outgoing of the container from each sensor, calculates the overlapped partial images among the cameras by using the measured distance. The controller combines and regenerates the calculated overlapped partial images after processing the images smoothly, and outputs the entire 2D surface image of the container by combining each regenerated partial image.

Description

2D surface image acquisition system of container and its method {SYSTEM FOR 2D PLANE IMAGE PICK UP OF CONTAINER AND A METHOD THEREOF}

1 is a perspective view for explaining a two-dimensional surface image acquisition system of a container according to an embodiment of the present invention.

Figure 2 is a perspective view for explaining the configuration of the image acquisition device and the illumination device applied to an embodiment of the present invention.

3 is a block diagram illustrating a two-dimensional surface image acquisition system of a container according to an embodiment of the present invention.

Figure 4 is a flow chart for explaining a two-dimensional surface image acquisition method of a container according to an embodiment of the present invention.

5A to 5C are conceptual views illustrating a 2D surface image acquisition method of a container according to an embodiment of the present invention.

*** Explanation of symbols on main parts of drawing ***

10: container, 20: support,

100: gate house, 200: position detection device,

200a to 200n: first to nth light emitting units,

200a 'to 200n': first to nth light receiving units,

300: image acquisition device,

310a to 310c: first to third camera units,

320a and 320b: first and second distance measuring unit,

400: control device, 500: management server,

600: lighting device, 700: illuminance measuring sensor

The present invention relates to a two-dimensional surface image acquisition system and method of the container, and more particularly, installed between at least two camera units and each camera unit for obtaining the two-dimensional surface image of the container passing through the gate house And an image acquisition device having a distance measuring unit for measuring a distance value from the container, and a position detection device including a plurality of sensors arranged at predetermined intervals in the gate house to notify the entry and exit of the container, thereby providing the overall two-dimensional structure of the container. The present invention relates to a two-dimensional surface image acquisition system of a container and a method for acquiring surface images more accurately and easily.

In general, containers for moving many cargoes are quite large in size. In addition, the moving speed of the container that is loaded into the vehicle and passes through the gate house may not be constant.

Conventionally, the inspector has visually confirmed the object directly to confirm the external state of the container. Accordingly, the external state of the container has not been accurately inspected, and the vehicle carrying the container has to be stopped for a while to check the external state of the container.

The present invention has been made to solve the above-described problems, an object of the present invention is installed between at least two camera units and each camera unit for obtaining a two-dimensional surface image of the container passing through the gate house and the container and Image acquisition device having a distance measuring unit for measuring the distance value of the position and the position detection device consisting of a plurality of sensors arranged at a predetermined interval in the gate house to notify the entry and exit of the container, thereby providing a two-dimensional full surface image of the container It is to provide a two-dimensional surface image acquisition system of a container that can be obtained more accurately and easily.

Another object of the present invention is to calculate the overlapping section image between each camera unit by using the distance value measured from the distance measuring unit installed between each camera portion of each container partial image obtained from the plurality of camera unit, the calculated Method of acquiring a two-dimensional surface image of a container capable of smoothly outputting the two-dimensional whole surface image of the container by combining the reproduced partial images after smoothly processing the overlapped section image and combining them. To provide.

In order to achieve the above object, the first aspect of the present invention, the gate house is installed so that the vehicle carrying the container; A position detection device comprising a plurality of sensors arranged in the gate house in the advancing direction of the container to notify entrance and exit of the container; At least two camera units installed on an inner surface of the gate house so as to be spaced apart from the container at a predetermined distance, and partially installed to partially acquire a two-dimensional surface image of the container, and installed between the camera units and the container. An image acquisition device including a distance measurement unit for measuring a distance value; And controlling the operation of the camera unit and the distance measuring unit as signals indicating the entry and exit of the container are generated from each sensor of the position detecting device, and the respective partial images obtained from the camera units are displayed in the distance. The overlapped section image between the camera units is calculated using the distance value measured from the measuring unit, the overlapped section image is smoothly processed, and then combined and regenerated, and the combined partial images are combined to form the overlapped section image. It is to provide a two-dimensional surface image acquisition system of a container including a control device for outputting a two-dimensional full surface image of the container.

Here, the position detecting device is installed at both sides of the inside of the gate house in the advancing direction of the container at predetermined intervals, it is preferable that the light emitting portion and the light receiving portion is composed of a plurality of transmissive sensor consisting of a pair.

Preferably, the image acquisition device is installed on the inner left side, the right side and the upper surface of the gate house according to the traveling direction of the container, respectively.

Preferably, the image acquisition apparatuses installed on the left side and the right side are installed to face each other, and the image acquisition apparatuses installed on the upper side are installed in a vertical direction with the image acquisition apparatuses installed on the left side and the right side.

Preferably, each camera unit is installed at a predetermined interval on a straight line, and is a solid-state imaging device (CCD) camera.

Preferably, the distance measuring unit is provided on the same line as each of the camera units, and is an ultrasonic distance measuring sensor.

Preferably, the management server for receiving the two-dimensional full surface image of the container output from the control device for displaying and storing and managing the database by the container is further included.

Preferably, the apparatus is provided near the image acquisition device, and further includes an illumination device for providing an amount of light required when acquiring a two-dimensional surface image of the container.

Preferably, the lighting device is composed of a plurality of light emitting diodes (LED) arranged.

Preferably, an illumination intensity sensor is installed near the image acquisition device to measure the amount of light that is changed by the inflow of natural light into the gate house, and the control device is configured according to the amount of light measured from the illumination measurement sensor. Control to adjust the light amount of the lighting device, the shutter speed and the sensitivity of the camera unit.

Preferably, the control device is configured to position the sensor until any one of the sensors of the position detection device immediately before the position of the image acquisition device with respect to the advancing direction of the container generates a signal informing the advance of the container. Each time a signal indicating the entry of the container is sequentially generated from each sensor of the detection device, the camera unit and the distance measuring unit are controlled to be simultaneously performed.

Preferably, the control device calculates an overlapping section image between the partial images by using the distance value measured from the distance measuring unit when combining the reproduced partial images, and smoothes the calculated overlapping section image. After processing, the smoothed partial images are combined to control to output the 2D full surface image of the container.

According to a second aspect of the present invention, at least two camera units for acquiring a two-dimensional surface image of a container passing through a gate house and a distance measuring unit installed between each camera unit and measuring a distance value with the container are provided. A method of acquiring a two-dimensional surface image of a container using a system including an image acquisition device having a position detection device and a plurality of sensors arranged in the gate house at predetermined intervals to inform the entry and exit of the container. (a) partially acquiring a two-dimensional whole surface image of the container from each camera unit as a signal indicating the entry and exit of the container is generated from each sensor of the position detection device; (b) acquiring a distance value with the container from the distance measuring unit whenever the two-dimensional whole surface image of the container is partially acquired by each camera unit; (c) calculating an overlapping section image between the camera units for each of the partial images acquired from the camera units using the obtained distance value; (d) regenerating the respective partial images by gently processing the calculated overlapped section images and combining them; And (e) combining the regenerated partial images to output a two-dimensional full surface image of the container.

Here, the step (e) may include: (e-1) calculating an overlapping section image between the regenerated partial images using the distance value measured from the distance measuring unit; (e-2) smoothly processing the calculated overlapping section image; And (e-3) combining the smoothed partial images to output a two-dimensional full surface image of the container.

Preferably, after the step (e), further comprising the step of outputting the two-dimensional entire surface image of the output container to a management server prepared in advance, the display, the database by container for storage and management.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, embodiments of the present invention illustrated below may be modified in many different forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.

1 is a perspective view for explaining a two-dimensional surface image acquisition system of a container according to an embodiment of the present invention, Figure 2 is a perspective view for explaining the configuration of the image acquisition device and lighting device applied to an embodiment of the present invention 3 is a block diagram illustrating a two-dimensional surface image acquisition system of a container according to an embodiment of the present invention.

1 to 3, a two-dimensional surface image acquisition system of a container according to an embodiment of the present invention, a gate house 100, a position detection device 200, an image acquisition device 300, and a control device ( 400).

Here, the gate house 100 is fixed to the ground by opening the front and rear to pass through the vehicle carrying the container 10 (see Fig. 5a).

The position detecting apparatus 200 is composed of a plurality of sensors arranged in the gate house 100 in the advancing direction of the container 10, and performs the function of detecting the entry and exit of the container 10, that is, the position.

The plurality of sensors are respectively installed at regular intervals on both sides of the gate house 100 in the advancing direction of the container 10, and include the first to nth light emitting parts 200a to 200n and the first to nth light receiving parts 200a. 'To 200n') is preferably implemented as a transmissive sensor composed of a pair of opposed to each other. In addition, the number of the transmissive sensors can be appropriately adjusted according to the length of the container 10.

In addition, each of the first to nth light emitting parts 200a to 200n of each of the transmissive sensors continuously injects infrared rays into the first to nth light receiving parts 200a 'to 200n', for example. Accordingly, the first to n-th light receiving units 200a 'to 200n' of each of the transmissive sensors sequentially generate signals indicating the entry and exit of the container 10.

In addition, the interval between the transmissive sensors of the position detection apparatus 200 is partially between the respective partial images obtained from the first to third camera units 310a to 310c which will be described later to perform the imaging operation according to the sequential operation of each transmissive sensor. Preferably, the areas are spaced apart so that they overlap.

The image acquisition apparatus 300 includes first and second distance measuring units 320a and 320b installed between the first to third camera units 310a to 310c and the first to third camera units 310a to 310n, respectively. It consists of).

The first to third camera units 310a to 310c are for partially capturing a two-dimensional whole surface image of the container 10 and are spaced apart from the container 10 passing through the gate house 100 at regular intervals. At least two or more units are preferably fixed to the support 20 fixed to the inner wall of the gate house 100 at regular intervals in a straight line.

The first to third camera units 310a to 310c are preferably implemented as a charge coupled device (CCD) camera that detects a conventional two-dimensional image.

In addition, the interval between the first to third camera units 310a to 310c, the container 10 and the first to third so as to partially overlap the two-dimensional surface image obtained between the first to third camera units (310a to 310c) The distance between the camera parts 310a to 310c can be freely adjusted.

Meanwhile, in one embodiment of the present invention, three camera units are configured, but the present invention is not limited thereto, and the number of camera units may be appropriately arranged according to the height and width of the container 10.

On the other hand, in an embodiment of the present invention, the first to third cameras 310a to 310c are fixedly installed on the support 20, but are not limited thereto and may be spaced apart from the container 10 at regular intervals. 100 may be firmly fixed to the inner wall of the substrate 100 using conventional fastening means such as screws, nails, welding, or a strong adhesive.

The first and second distance measuring units 320a and 320b are installed between the first to third camera units 310a to 310c, respectively, and perform a function of measuring a distance value from the container 10.

The first and second distance measuring units 320a and 320b are preferably implemented with a conventional ultrasonic wave distance sensor.

In addition, the first and second distance measuring units 320a and 320b are installed on the same line as the first to third camera units 310a to 310c, and are acquired between the first to third camera units 310a to 310c. It is preferable that the installed distance to measure the distance value in the overlap section of the two-dimensional surface image of the container 10.

Meanwhile, in one embodiment of the present invention, the first and second distance measuring units 320a and 320b are installed between the first to third camera units 310a to 310c, respectively, but are not limited thereto. Only one portion may be provided between the portion 310a and the second camera portion 310b or between the second camera portion 310b and the third camera portion 310c.

Accordingly, the distance value in the overlapping section of the image obtained between the camera units without the distance measuring unit may be equally applied to the distance values measured between the camera units provided with the distance measuring unit.

The image acquisition device 300 configured as described above is preferably installed on the inner left side, the right side and the upper side of the gate house 100 according to the advancing direction of the container 10, respectively.

At this time, the image acquisition apparatus 300 installed on the left side and the right side is preferably installed to face each other, the image acquisition apparatus 300 installed on the upper surface is installed in a vertical direction with the image acquisition apparatus 300 installed on the left and right sides. This is preferred.

The control device 400 is a first to third camera unit 310a to 310c of the image acquisition device 300 in accordance with a signal indicating the entry and exit of the container 10 detected from each sensor of the position detection device 200. And control operations of the first and second distance measuring units 320a and 320b.

In addition, the control device 400 when a sensor of the position detection device 200 immediately before the position of the image acquisition device 300 with respect to the moving direction of the container 10 generates a signal indicating the advance of the container. Until each time, when a signal indicating the entry of the container is sequentially generated from each sensor of the position detecting apparatus 200, the imaging operation of the first to third camera units 310a to 310c and the first and second distance measuring units ( It is preferable to control the operation of 320a and 320b at the same time.

That is, the image acquisition apparatus 300 may include the first light emitting unit 200a and the first light emitting unit 200 which are immediately before their position in one position of the moving direction of the container 10, for example, in the moving direction of the container 10. It is provided in a position immediately after the light receiving portion 200a '.

This is because the position of the first light emitting unit 200a and the first light receiving unit 200a 'which are just before their position with respect to the traveling direction of the container 10 generates a signal informing the advance of the container 10. When the signals for entering the container are sequentially generated from each sensor of the detection apparatus 200, the imaging operation of the first to third camera units 310a to 310c and the first and second of the image acquisition apparatus 300 are performed. The operation of the distance measuring units 320a and 320b is performed at the same time.

Accordingly, partial images along the length of the container 10 may be obtained at regular intervals without being affected by the moving speed of the container 10. For example, the first to third camera units 310a to 310c of the image acquisition apparatus 300 installed on the left side, the right side, and the upper side of the gate house 100 may each have a container 10 having a length of about 20 feet. Nine imaging operations are performed on the twelve-folder, and twenty-one imaging operations are performed on the container 10 having a length of about 45 feet.

In this case, each of the partial images according to each imaging operation is overlapped by about 20% of the part of the image length at the mutual boundary. The overlapping section image between the partial images may be accurately calculated by distance values measured from the first and second distance measuring units 320a and 320b.

In addition, each of the images between the first to third camera units 310a to 310c overlaps a part of the image length at each boundary, and the overlapping section image between the first to third camera units 310a to 310c may be formed. The distance values measured from the first and second distance measuring units 320a and 320b may be accurately calculated.

In addition, the control device 400 is a signal indicating the entry and exit of the container 10 from each sensor of the position detection device 200 is generated from each of the first to third camera unit (310a to 310c) Using the distance values measured from the first and second distance measuring units 320a and 320b, the partial images are calculated for the overlapping section image between the first to third camera units 310a to 310c, and the calculated overlapping section image. After the smooth processing, the combination is regenerated, and each of the regenerated partial images is combined to control to output a two-dimensional full surface image of the container 10.

When the controller 400 combines the regenerated partial images, the control device 400 calculates an overlapping section image between the partial images by using the distance values measured by the first and second distance measuring units 320a and 320b. After smoothing the calculated overlapped section image, it is preferable to control to output the two-dimensional full surface image of the container 10 by combining the smoothed partial images.

In addition, the management server 500 for receiving the two-dimensional full surface image of the container 10 output from the control device 400, and display and store and manage the database for each container may be further included.

In addition, the illumination device 600 is installed near the image acquisition device 300 may be further included to provide the amount of light required to obtain a two-dimensional surface image of the container 10, the control signal of the control device 400 Driven accordingly.

The lighting device 600 is preferably installed on both sides of the image acquisition device 300 to irradiate the outer surface of the container 10, it is preferable that a plurality of light emitting diodes (LED) are arranged and arranged. .

Furthermore, an illumination intensity sensor 700 installed near the image acquisition device 300 and measuring the amount of light that is changed by the inflow of natural light into the gate house 100 may be further included. The control unit 400 adjusts the amount of light of the illumination device 600, the shutter speed and the sensitivity of the first to third camera units 310a to 310c according to the amount of light measured from the illuminance measuring sensor 700. It is preferable to control so that it is.

In addition, in order to obtain a two-dimensional surface image of the back of the container 10, the gate house according to the traveling direction of the container 10 so as to be spaced apart from the container 10 passing through the gate house 100 at regular intervals ( 100) may be installed in the rear of the interior.

4 is a flowchart illustrating a method for acquiring a 2D surface image of a container according to an embodiment of the present invention, and FIGS. 5A to 5C illustrate a method for acquiring a 2D surface image of a container according to an embodiment of the present invention. As a conceptual diagram to illustrate, a method of obtaining a 2D surface image of the upper surface of the container 10 is illustrated as an example, and the left side and the right side of the container 10 are similarly applied.

4 and 5, in the method for acquiring a two-dimensional surface image of a container according to an embodiment of the present invention, first, the container 10 enters and exits from each sensor of the position detecting apparatus 200 (see FIG. 3). As a signal is generated, the two-dimensional whole surface image of the container 10 is partially captured and acquired from the first to third camera units 310a to 310c spaced apart from the container 10 at regular intervals. The distance values D with the container 10 are obtained from the first and second distance measuring units 320a and 320b provided between the first to third camera units 310a to 310c (S100 and S200).

Next, an overlap between the first to third camera units 310a to 310c for each of the partial images acquired from the first to third camera units 310a to 310c using the obtained distance value D. FIG. The interval images C1 and C2 are calculated (S300). In detail, the two-dimensional surface images P1 to 1 of the container 10 using the angle of view θ and the distance value D of the first to third camera units 310a to 310c according to Equation 1 below. The lengths A1 to A4 of P3) can be obtained.

A1 to A4 = Tan (θ) × D

Here, the angle of view θ of the first to third camera units 310a to 310c is a fixed constant value calculated in advance by acquiring an image of the first to third camera units 310a to 310c according to a change in distance. The distance value D is a value that varies depending on the traveling position of the container 10.

Thereafter, the lengths A1 to A4 of the two-dimensional surface images P1 to P3 of the container 10 according to the interval S between the first to third camera units 310a to 310c by Equation 2 below. Overlapping interval images C1 and C2 may be calculated.

C1 = (A1 + A2) -S, C2 = (A3 + A4) -S

In addition, B1 to B4 represent the width of the section before overlapping at the center of the two-dimensional surface images P1 to P3 of the container 10, and may be calculated by Equation 3 below.

B1 = S-A2, B2 = S-A1,

B3 = S-A4, B4 = S-A3

Next, after smoothly processing the overlapping section images C1 and C2 calculated in step S300 (S400), the respective partial images are regenerated by combining the smoothed overlapping section images C1 and C2 ( S500).

In this case, the method for smoothly processing the overlapping section images C1 and C2 may be variously implemented by a gradation or blending effect applied in a conventional image processing technique.

Subsequently, overlapping interval images E1 to Ek between the partial images D1 to Dn reproduced in step S500 using the distance values D obtained from the first and second distance measuring units 320a and 320b. ) Is calculated (S600).

In this case, the calculation of the overlapping section images E1 to Ek between the partial images D1 to Dn may include calculating the overlapping section images C1 and C2 between the first to third camera units 310a to 310c. The same applies to.

Next, after smoothly processing the calculated overlapping section images E1 to Ek (S700), the two-dimensional whole surface image of the container 10 is output by combining the smoothed partial images (S800).

In this case, the method for smoothly processing the overlapping section images E1 to Ek may be variously implemented by a gradation or blending effect applied in a conventional image processing technique.

Finally, the two-dimensional entire surface image of the container 10 output in step S800 may be provided to the management server 500 (see FIG. 3) for display or may be stored and managed by database by container (S900).

Although a preferred embodiment of the two-dimensional surface image acquisition system and method thereof for a container according to the present invention has been described above, the present invention is not limited thereto, but is within the scope of the claims and the detailed description of the invention and the accompanying drawings. It is possible to carry out various modifications and this also belongs to this invention.

According to the two-dimensional surface image acquisition system and method of the container of the present invention as described above, installed between at least two camera units and each camera unit for obtaining the two-dimensional surface image of the container passing through the gate house And an image acquisition device having a distance measuring unit for measuring a distance value from the container, and a position detection device including a plurality of sensors arranged at predetermined intervals in the gate house to notify the entry and exit of the container, thereby providing the overall two-dimensional structure of the container. There is an advantage that the surface image can be obtained more accurately and easily.

In addition, according to the present invention, by installing the image acquisition device on the inner left side, the right side and the upper surface of the gate house according to the moving direction of the container, respectively, by acquiring the external surface image of the container, the surface state of the container exposed to the outside effectively There is an advantage to grasp.

According to the present invention, the two-dimensional surface image of the container is fixed by arranging each camera part of the image acquisition device at a predetermined interval on a straight line and placing the distance measuring part provided between each camera part on the same line with each camera part. There is an advantage that can be obtained more accurately.

In addition, according to the present invention, by installing a plurality of light emitting diodes (LEDs) arranged in the vicinity of the image acquisition device, there is an advantage that can effectively provide the amount of light required for the two-dimensional surface image acquisition of the container.

In addition, according to the present invention, by installing the illuminance measuring sensor in the vicinity of the image acquisition device, and adjusts the light amount of the illumination device, the shutter speed and sensitivity of the camera according to the amount of light measured from the illuminance measuring sensor, the two-dimensional surface image of the container There is an advantage that can effectively prevent the phenomenon of being distorted by the natural light flowing into the gate house during acquisition.

Claims (15)

A gate house installed to pass a vehicle carrying a container; A position detection device comprising a plurality of sensors arranged in the gate house in the advancing direction of the container to notify entrance and exit of the container; At least two camera units installed on an inner surface of the gate house so as to be spaced apart from the container at a predetermined distance, and partially installed to partially acquire a two-dimensional surface image of the container, and installed between the camera units and the container. An image acquisition device including a distance measurement unit for measuring a distance value; And Controlling the operation of the camera unit and the distance measuring unit as a signal indicating the entry and exit of the container from each sensor of the position detection device, and measuring the partial images obtained from the respective camera units Computing an overlapping section image between the camera units by using the distance value measured from the unit, smoothly processing the calculated overlapping section image, and regenerating the combined section image, and combining the regenerated respective partial images into the container. A two-dimensional surface image acquisition system of a container comprising a control device for outputting a two-dimensional full surface image of the. According to claim 1, wherein the position detecting device, A two-dimensional surface image acquisition system of a container, which is installed at both sides of the inside of the gate house at a predetermined interval in a traveling direction of the container, and includes a plurality of transmissive sensors composed of a pair of light emitting parts and light receiving parts facing each other. . The 2D surface image acquisition system of claim 1, wherein the image acquisition device is installed on an inner left side, a right side, and an upper side of the gate house according to a moving direction of the container. The apparatus of claim 3, wherein the image acquisition apparatuses installed on the left and right sides are installed to face each other, and the image acquisition apparatuses installed on the upper surface are installed in a vertical direction with the image acquisition apparatuses installed on the left and right sides. 2D surface image acquisition system of a container. The two-dimensional surface image acquisition system of claim 1, wherein each camera unit is installed at a predetermined interval on a straight line and is a solid state imaging device (CCD) camera. 2. The two-dimensional surface image acquisition system of a container according to claim 1, wherein the distance measuring unit is installed on the same line as each of the camera units and is an ultrasonic distance measuring sensor. The 2D container according to claim 1, further comprising a management server for receiving the 2D entire surface image of the container output from the control device, displaying the same, and storing and managing the containerized database for each container. Surface Image Acquisition System. 2. The two-dimensional surface image acquisition system of a container according to claim 1, further comprising an illumination device installed near the image acquisition device to provide an amount of light required for acquiring the two-dimensional surface image of the container. The 2D surface image acquisition system of a container according to claim 8, wherein the illumination device comprises a plurality of light emitting diodes (LEDs) arranged. The method of claim 8, wherein the illumination device is installed near the image acquisition device for measuring the amount of light that is changed by the inflow of natural light in the gate house further comprises, the control device is the amount of light measured from the illumination measurement sensor And controlling the amount of light of the illumination device, the shutter speed and the sensitivity of the camera unit to be adjusted. The method of claim 1, wherein the control device, The container from each sensor of the position detection device until any sensor of the position detection device immediately before the position of the image acquisition device with respect to the advancing direction of the container generates a signal indicating the exit of the container. 2D surface image acquisition system of a container, characterized in that the control to perform the operation of the camera unit and the distance measuring unit at the same time whenever a signal indicating the entry of the sequentially. The method of claim 1, wherein the control device, When the regenerated partial images are combined, the overlapped section image between the partial images is calculated using the distance value measured from the distance measuring unit, the processed overlapped image is smoothly processed, and then the smoothed portion is processed. 2D surface image acquisition system of the container, characterized in that to control to output the two-dimensional full surface image of the container by combining the images. An image acquisition device having at least two camera units for acquiring a two-dimensional surface image of a container passing through a gate house, and a distance measuring unit installed between the camera units and measuring a distance value from the container; In the method of acquiring a two-dimensional surface image of a container by using a system comprising a position detection device arranged in a house at a predetermined interval to inform the entry and exit of the container, (a) partially acquiring a two-dimensional whole surface image of the container from each camera unit as a signal indicating the entry and exit of the container is generated from each sensor of the position detection device; (b) acquiring a distance value with the container from the distance measuring unit whenever the two-dimensional whole surface image of the container is partially obtained by the camera units; (c) calculating an overlapping section image between the camera units for each of the partial images acquired from the camera units using the obtained distance value; (d) regenerating the respective partial images by gently processing the calculated overlapped section images and combining them; And and (e) combining the regenerated partial images to output a two-dimensional full surface image of the container. The method of claim 13, wherein step (e) (e-1) calculating an overlapping section image between the reproduced partial images using the distance value measured by the distance measuring unit; (e-2) smoothly processing the calculated overlapping section image; And (e-3) combining the smoothed partial images to output a two-dimensional full surface image of the container. The method of claim 13, further comprising, after the step (e), outputting the two-dimensional entire surface image of the output container to a management server prepared in advance, displaying, storing and managing a database for each container. 2D surface image acquisition method of the container.

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