KR101409394B1 - System and Method for supporting Flow Level Measuring Process Using Virtual Level Gauge - Google Patents

Abstract

The present invention relates to a system and a method for supporting water level measurement which comprise a source image acquisition module acquiring source images including structures, liquid and reference sign by communicating with an image photographing device and storing the acquired source images in information storing area; an source image separating module; a virtual watermark generating module; a liquid encroachment level calculating module; a liquid encroachment level reflected-virtual water level generating module; and a processing module of water level measurement supporting image. Therefore, a series of water level measuring procedures can be performed based on the virtual watermark so that person in charge of water level measurement can easily avoid various problems in accordance with actual watermark-based water level measuring procedures.

Description

Technical Field [0001] The present invention relates to a water level measurement support system and a water level measurement support method using a virtual water level table,

The present invention relates to a system and method for supporting a water level measurement procedure in a structure such as a pier, and more particularly, to a water level measurement method in which a series of receiving measurement procedures , There are various problems caused by the water level measurement procedure based on the actual water level table (for example, problems of occurrence of huge initial costs, problems of difficulty in setting up the water level table, errors in the water level measurement due to contamination of the water level table) The present invention relates to a water level measurement support system and a water level measurement support method capable of easily guiding water level measurement itself in a structure where a water level table is not installed.

The most conventional conventional method of measuring the level of a liquid such as a river is to attach a water level table (P) made of a neck board to a structure (K) such as a pier, . FIG. 1 is a photograph showing a photograph of a state in which a water level table is directly attached to a bridge pier, and FIG. 2 is a view showing the same.

In addition to this classical prior art, Korean Patent No. 10-998885 (titled: liquid boundary surface recognition method using temporal pixel concentration change in image and liquid height recognition device for recognizing liquid height using this method) (Dec. 8) has proposed a technique of measuring the water level by acquiring / processing the image of the real water table (P) by using a camera such as a camera and recognizing the liquid interface through the image.

However, in order to utilize each of these prior art techniques, a physical level table P must be installed in an actual structure K such as a pier. In this case, not only a great initial cost will be incurred but also due to the characteristics of actual structures (P) of the actual water level table (P), even if the water level table (P) is installed, it is difficult to install the water level table , When the blurring phenomenon occurs, the actual water level table (P) becomes invisible, which causes a serious problem that an error occurs in the water level measurement. What is needed to measure the water level is not only the pier on the silo but also the case where the water level of the dam is measured, the water level is measured in the liquid tank storing the liquid, etc. In such a case, Can occur.

Particularly, when the actual water level table P is not installed in the actual structure K, the above-mentioned conventional techniques have a fatal disadvantage that the water level measurement is impossible at all.

See Korean Patent No. 10-998885 (issued on Dec. 8, 2010).

The object of the present invention is to overcome the limitations of the prior art as described above, and it is an object of the present invention to provide a method of measuring a level of a river, a level of a dam, a case of measuring a level in a liquid tank storing a liquid It is an object of the present invention to provide a technique for precisely measuring a water level through a photographed image without directly installing a water level table on the structure in measuring the height of the liquid, that is, the water level rising against the structure.

Specifically, an object of the present invention is to provide a communication system and a communication method that can communicate with a video image capturing apparatus (e.g., a video image capturing apparatus installed around a structure requiring water level measurement) A computation module capable of capturing an image, a computation module capable of separating the acquired original image into a structure image area, a liquid image area, and a reference landmark image area, A computation module capable of generating a virtual watermark table in which the horizontal and vertical scales are defined, and a liquid decaying level reflecting the liquid decaying level, which is expected to encapsulate a portion of the virtual watermark, Computed module that can be computed, < &lt; Desc / Clms Page number 2 &gt; &lt; liquid level & A computerized module capable of generating a virtual water table reflecting the water level, &lt; a water level measurement supporting image is generated by combining the raw image and the liquid level data reflecting the liquid water level, and the generated water level measurement supporting image is displayed And a computer module capable of transferring data to a terminal, and the like, thereby allowing a series of receiving and measuring procedures to be carried out based on a virtual water table, not a physical water table, (For example, problems of generation of huge initial costs, difficulty of installation of a real water table, problems of errors in water level measurement due to contamination of a real water table, A problem that the water level measurement itself becomes impossible in the case of the uninstalled structure) can be easily avoided .

Other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

According to an aspect of the present invention, there is provided an image processing apparatus comprising: a raw image acquiring module that acquires a raw image including a structure, a liquid, and a reference table expression by communicating with a radiographing device via a wire / wireless online network; A raw image segmentation module for separating the raw image into a structure image region, a liquid image region, and a reference landmark image region; A virtual watermark generation module for reading the reference mark image region and generating a virtual watermark table in which a measurement scale and a horizontal / vertical scale are defined; A liquid erosion level calculation module that reads the liquid image area and calculates a liquid erosion level that reflects a liquid erosion level expected to erode a part of the virtual water table; A liquid immersion water level reflection virtual water table generation module for reading the virtual water table and the liquid immersion water level and generating a liquid water immersion water level reflection virtual water level table in which a part of the virtual water table is deleted by the liquid water immersion water level; And a water level measurement supporting image processing module for generating a water level measurement supporting image by combining the raw image and the liquid level data reflecting liquid level and transmitting the generated water level measurement supporting image to a display terminal. Provide support system.

According to another aspect of the present invention, there is provided an image processing method comprising the steps of: acquiring a raw image including a structure, a liquid, and a reference table expression by communicating with a radiographing device via a wire / wireless online network; Separating the original image into a structure image area, a liquid image area, and a reference landmark image area; Reading the reference landmark image region to generate a virtual watermark in which a measurement scale and a horizontal / vertical scale are defined; Reading the liquid image area to calculate a liquid immersion water level reflecting a liquid immersion level expected to erode a part of the virtual water table; Generating a liquid hypothetical reflectance virtual watermark table in which a portion of the virtual watermark is erased by the liquid erosion level after reading the virtual watermark and the liquid erosion level; And generating a water level measurement supporting image by combining the raw water level and the liquid immersion water level reflecting virtual water level table and transmitting the generated water level measurement supporting image to a display terminal .

In the present invention, communication with a video photographing device (for example, a video photographing device installed in the vicinity of a structure requiring water level measurement) via a wired / wireless on-line network to acquire a raw image including a structure, liquid, A computational module capable of separating the acquired original image into a structure image area, a liquid image area, and a reference landmark image area, and a read reference mark image area, A computational module capable of generating a scaled virtual watermark, <&lt; RTI ID = 0.0 &gt; a &lt; RTI ID = 0.0 &gt; Computational module>, <liquid level of liquid level in which a portion of the virtual water table is deleted by the liquid water level after reading the generated / calculated virtual water table and liquid water level, It is possible to generate a water level measurement supporting image by combining a computation module capable of generating a constant watermark, a raw water level acquired and generated, and a virtual watermark reflecting liquid water level, and transmit the generated water level measurement supporting image to the display terminal A computerized module &quot;, and the like. Therefore, under the implementation environment of the present invention, a series of acceptance measurement procedures can be carried out based on a virtual water table, not a physical water table, (For example, problems of generation of huge initial costs, difficulty of setting up the water level table, problems of error in the water level measurement due to contamination of the actual water level table, and problems of the water level table A problem that the water level measurement itself becomes impossible in a structure in which the water level is not installed) can be easily avoided do.

FIG. 1 is a photograph for showing a picture of a state where a water level mark is directly attached to a pier. FIG.
2 is an exemplary view conceptually showing an installation form of a real water level table according to a conventional technique.
3 is an exemplary diagram conceptually illustrating a detailed configuration of a receiving measurement support system according to the present invention.
FIG. 4 and FIG. 5 are conceptual diagrams illustrating a detailed function execution procedure of the receiving measurement support system according to each embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that the technical idea of the present invention and its essential structure and operation are not limited thereby.

FIG. 3 is a schematic view illustrating a detailed configuration of a water level measurement support system according to the present invention, and FIGS. 4 and 5 are diagrams illustrating details of a reception measurement support system according to a specific embodiment of the present invention An example of conceptually illustrating a function execution procedure is shown.

3, the water level measurement support system 100 according to the present invention includes a video imaging device 1, a water level measurement related information device 2, A process of generating a raw image, a process of generating a raw water image, a process of generating a raw water image, a process of generating a virtual water table, a process of calculating a liquid immersion water level, and a process of generating a virtual water table reflecting a liquid immersion water level, while communicating with the information display module 3, the information display module 100a, A water level measurement control module 101 for collectively controlling processing procedures of a water level measurement supporting image combined with a virtual water level table and a raw image and a raw image acquisition module 103 A raw image separation module 104, a virtual water table generation module 105, a liquid immersion water level calculation module 106, a liquid immersion water level reflection virtual water level table generation module 107, a water level measurement support image processing module 108, And so on. .

In the present invention as described above, the water level measurement related information device 3 means an information processing device such as a PC, a notebook, a smart phone, a tablet PC and the like possessed by a water level measurement person, Means a video capturing device such as a CCTV or a web camera installed around (or located at) a necessary structure K (for example, a pier installed in a river, a dam, a reservoir, etc.).

4, the source image acquisition module 103 communicates with the image capture device 1 via the interface module 102, the online / offline online network 2, and the like, It is checked whether or not the original image including the structure K, the liquid L, the reference mark 10, and the like has been transmitted from the image capturing apparatus 1 side.

In this case, the reference mark 10 is used to generate a virtual watermark table 200 or 201 inherent to the present invention, and the reference information (for example, the horizontal / vertical scale of the virtual watermark 200, Reference information that can be used to inform how to transform / calculate / determine according to the telephoto magnification of the image capturing apparatus 1, installation height / day of the image capturing apparatus 1, and the like. It is possible to take various types of shape patterns such as a rectilinear shape, a triangular shape, a band shape, a point shape, and the like.

At this time, when it is confirmed that the original image including the structure K, the liquid L, the reference landmark 10, etc. has been transmitted from the image capturing apparatus 1, the original image acquiring module 103 receives / After the acquisition, the raw images that have been received / acquired are stably stored and managed in their own information storage areas, so that a series of water level measurement support procedures according to the present invention can be performed normally without any problems (see FIG. 4).

Thus, in the situation where the original image including the structure K, the liquid L, the reference mark 10, etc. is acquired / stored, the original image separation module 104 communicates with the original image acquisition module 103 A sequence of data separation routines is advanced to extract a raw image that has been acquired / stored thereby, and a procedure of separating the raw image into a structure image area, a liquid image area, and a reference landmark image area is performed 4).

In this case, the structure image region means a partial image of the structure (K) region, which is the result of image processing by separating only the structure (K) portion from the original image, and the liquid image region is a liquid (L) region ", which is the result of image processing so that only the portion of the reference mark (10) is removed from the original image, and the reference marker image region means that only the portion of the reference marker (10) Quot; refers to a partial image of the "reference landmark 10 region "

When the source image is separated into the structure image area, the liquid image area, the reference landmark image area, and the like, the virtual watermark generation module 105 side communicates with the source image separation module 104, After the image area is read, a series of data generation routines are advanced to proceed to a process of generating a virtual watermark table 200 in which a measurement scale and a horizontal / vertical scale are defined (see FIG. 4).

At this time, if the reference mark 10 has a size equal to or greater than a predetermined level, the virtual watermark generating module 105 uses the following Equation 1 to calculate the horizontal / vertical scale of the virtual watermark 200 .

Where M is the actual height or actual width of the reference landmark 10, N is the number of horizontal or vertical pixels of the source image, O is the number of horizontal pixels of the reference landmark included in the reference landmark image region, Or the number of vertical pixels, respectively.

Under this procedure, for example, when the actual height of the reference mark 10 is 50 cm, the number of horizontal pixels of the original image is 1000, and the number of pixels of the reference mark 10 included in the reference mark image area is 100, On the side of the water level table generation module 105, [50 x (1000/100)] is calculated according to the equation (1), and 5 m is defined as the horizontal scale of the virtual water table 200.

When the actual height of the reference marker 10 is 50 cm and the number of vertical pixels of the source image is 600 and the number of pixels of the reference marker 10 included in the reference marker image region is 100, ) Calculates [50 x (600/100)] according to Equation (1) to define 3 m as the vertical scale of the virtual watermark table 200.

As another example, when the actual height of the reference marker 10 is 50 cm, the number of horizontal pixels of the source image is 1000, and the number of pixels of the reference marker 10 included in the reference marker image area is 50, 105) calculates [50 x (1000/50)] according to Equation (1) to define 10 m as the horizontal scale of the virtual watermark table 200.

When the actual height of the reference landmark 10 is 50 cm and the number of vertical pixels of the original image is 600 and the number of pixels of the reference landmark 10 included in the reference landmark image region is 50, ) Calculates [50 x (600/50)] according to Equation (1) to define 6 m as the vertical scale of the virtual watermark table 200.

On the other hand, when the size of the reference landmark 10 is small, the horizontal and vertical scales of the virtual watermark table 200 are defined on the side of the virtual watermark generating module 105 using the following equation (2) .

In Equation (2), S denotes the set actual length, T denotes the number of horizontal pixels or vertical pixels of the source image, and U denotes the number of pixels per set actual length of the source image corresponding to the telephoto magnification of the image photographing apparatus .

As shown in FIG. 5, for example, when the set actual length of 10 cm, the number of horizontal pixels of the original image is 1000, the telephoto magnification of the image photographing apparatus is zero, The number of pixels per set actual length (i.e. 10 cm) of the original image corresponding to the telephoto magnification (i.e., 0) is 1, the virtual watermark generation module 105 side calculates [10 x (1000/1) ], And defines 100 m as the horizontal scale of the virtual water table 200.

If the set actual length is 10 cm, the number of vertical pixels of the original image is 600, the telephoto magnification of the image photographing device is zero, and the setting of the original image corresponding to this telephoto magnification (i.e., 0) If the number of pixels per actual length (i.e., 10 cm) is 1, the virtual watermark generation module 105 calculates [10 x (600/1)] according to Equation (2) It is defined as a vertical scale.

As another example, if the preset actual length is 10 cm, the number of horizontal pixels of the original image is 1000, the telephoto magnification of the image photographing device is 5, and the set actual length of the original image corresponding to this telephoto magnification (10 × (1000/10)] on the side of the virtual watermark generation module 105 in accordance with Equation (2), and 10 m is calculated on the horizontal scale of the virtual watermark 200 .

The set actual length of the original image corresponding to the telephoto magnification (i.e., 5) is set to be 10, the set actual length of 10 cm, the number of vertical pixels of 600 of the original image, (10 × (600/10)] on the side of the virtual watermark generation module 105 in accordance with Equation (2), and when 6m is the vertical scale of the virtual watermark table 200 .

As another example, if the preset actual measurement length is 10 cm, the number of horizontal pixels of the original image is 1000, the telephoto magnification of the image photographing device is 10, and the setting actual measurement of the original image corresponding to this telephoto magnification When the number of pixels per length (i.e., 10 cm) is 20, the virtual watermark generation module 105 calculates [10 x (1000/20)] according to Equation (2) Scale.

The set actual length of the original image is 10 cm, the number of vertical pixels of the original image is 600, the telescopic magnification of the image photographing apparatus is 10, and the set actual length of the original image corresponding to this telephoto magnification (i.e., 10) (10 × (600/20)) according to Equation (2) on the side of the virtual watermark generation module 105 and sets 3 m to the vertical scale of the virtual watermark table 200 .

On the other hand, in the phase in which the virtual scale table 200 in which the measurement scale and the horizontal / vertical scale are defined is generated through the above-described procedure, the liquid erosion level calculation module 106 side communicates with the raw image separation module 104 , A liquid image area is read and then a series of information processing routines (for example, a binarization routine, a histogram processing routine, and the like) are advanced so that the liquid level of the liquid, which is expected to encroach part of the virtual watermark 200, And proceeds to the process of calculating the immersion level (see FIGS. 4 and 5).

In this way. (A liquid level in which the liquid level of the liquid which is expected to eradicate a part of the virtual water level table 200 is reflected) &gt; generated / calculated The liquid level table generation module 107 communicates with the virtual table generation module 105 and the liquid level table 106 and the like so that the <measurement scale and horizontal / vertical scale are defined A liquid water level table 200 reflecting the liquid level of the liquid which is supposed to encroach a part of the virtual water level table 200 &quot;, and the like, and then proceeds to a series of data generation routines, The procedure proceeds to the process of generating the liquid immersion water level reflection virtual water table 201 in which a part of the table 200 is deleted by the liquid water immersion water level (see FIGS. 4 and 5).

When the liquid immersion water level reflection virtual water level table 201 in which a part of the virtual water table 200 is deleted by the liquid water immersion water level is generated through the above-described procedure, the level of liquid immersion water level is reflected on the water level measurement support image processing module 108 side Communicates with the virtual water table generation module 107 and proceeds to the process of reading / extracting the liquid immersion water level reflection virtual water table 201 generated thereby and communicates with the raw water image acquisition module 103 , And the process of reading / extracting the original image acquired / stored thereby is performed (see FIGS. 4 and 5).

Thus, the liquid immersion water level reflecting virtual water table 201>, <the structure K, the liquid L, the reference marker 10, and the like including a part of the virtual watermark 200 are deleted by the liquid immersion water level The image processing module 108 proceeds to a series of data combining routines so that a portion of the virtual watermark 200 is deleted by the liquid immersion level A raw image including a reflected virtual watermark 201, a structure K, a liquid L, a reference mark 10 and the like are combined and a series of data insertion routines are carried out, Images, tables, graphs, numerical values, and the like are inserted into the raw image combined with the water level reflection virtual water table 201 and the water level measurement support image for supporting the water level measurement is generated through the procedure (See Figs. 4 and 5).

(K), the liquid (L), the reference mark (10), the liquid water level table (201), and the liquid water level table (201), in which a part of the virtual water table (200) And the like are combined into a single screen together with a phrase, an image, a table, a graph, a numerical value, etc., the level-measurement supporting image processing module 108 transmits the level- For example, a water level measurement related person information device 3, an information display module 100a or the like via the wireless / online online network 2, etc., and transmits the generated level measurement supporting image to the water level measurement related person information The information display module 100a or the like, the process of outputting / transmitting / providing the information to the device 3, the information display module 100a or the like will proceed. As a result, the person concerned with the water level measurement does not have to rely on the actual water level table (in particular, Under the circumstances It is possible to appropriately measure the level of the liquid such as the river while observing various data (for example, the virtual water table 201, various phrases, etc.) included in the water level measurement supporting image.

As described above, in the present invention, communication with a video photographing device (for example, a video photographing device installed in the vicinity of a structure requiring water level measurement) via a wired / wireless on-line network is performed and a raw image including a structure, A computation module capable of separating the acquired original image into a structure image area, a liquid image area, and a reference landmark image area, and a read reference mark image area, A computation module capable of generating a virtual watermark in which a horizontal / vertical scale is defined, < a liquid decaying level reflecting the liquid decaying level expected to encroach a portion of the virtual watermark by reading the separated liquid image region After reading the generated and calculated virtual water table and the liquid immersion water level, a portion of the virtual water table is erased by liquid immersion water level. A computer-generated module capable of generating the reflected virtual watermark, &lt; a watermark-measurement assisted image is generated by combining the captured / generated raw image and the liquid-induced watermark-reflected virtual watermark, A series of acceptance measurement procedures can be performed based on a virtual water table instead of a physical water level table, and as a result, In the water level measurement side, various problems caused by the water level measurement procedure based on the actual water level table (for example, problems of occurrence of huge initial costs, difficulty in installing the water level table, errors in water level measurement due to contamination of the water level table, The problem that the water level measurement itself can not be done in a structure where the actual water level table is not installed) It is able to.

The present invention is not limited to a specific field, and it has a generally useful effect in various fields where a level measurement is required. Although specific embodiments of the present invention have been described and illustrated above, it is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, such modified embodiments should not be understood individually from the technical idea and viewpoint of the present invention, and such modified embodiments should fall within the scope of the appended claims of the present invention.

P: Actual water table K: Structure
L: Liquid 1: Imaging device
2: Wired / wireless on-line network 3: Water level measurement related information equipment
10: Reference mark 100: Level measurement support system
100a: information display module 101: water level measurement control module
102: interface module 103: source image acquisition module
104: raw image separation module 105: virtual watermark generation module
106: liquid immersion water level calculation module 107: liquid immersion water level reflection virtual water level generation module
108: Level measurement support image processing module
200: virtual water table 201: liquid water immersion water level reflection virtual water table

Claims (6)

A raw image acquiring module that acquires a raw image including a structure, a liquid, and a reference table expression by communicating with a radiography device through a wired / wireless online network, and stores the acquired raw image in an information storage area;
A structure image region as a result of image processing by separating the original image from the original image so as to separate only the structure portion, a liquid image region as a result of image processing for separating only the liquid portion from the original image, A raw image segmentation module for separating a reference mark image area into a reference mark image area,
A virtual watermark generation module for reading the reference mark image region and generating a virtual watermark table in which a measurement scale and a horizontal / vertical scale are defined;
A liquid erosion level calculation module that reads the liquid image area and calculates a liquid erosion level that reflects a liquid erosion level expected to erode a part of the virtual water table;
A liquid immersion water level reflection virtual water table generation module for reading the virtual water table and the liquid immersion water level and generating a liquid water immersion water level reflection virtual water level table in which a part of the virtual water table is deleted by the liquid water immersion water level;
And a water level measurement supporting image processing module for generating a water level measurement supporting image by combining the raw image and the liquid level data reflecting liquid level and transmitting the generated water level measurement supporting image to a display terminal. Support system.
The method according to claim 1,
Wherein the virtual watermark generation module calculates the scale of the virtual watermark table according to Equation (1) to define the horizontal / vertical scale of the virtual watermark table.
(1)

(Where M is the actual height or actual width of the reference landmark, N is the number of horizontal or vertical pixels of the source image, O is the number of horizontal pixels of the reference landmark included in the reference landmark image region, Number of vertical pixels.)
The method according to claim 1,
Wherein the virtual watermark generation module calculates a scale of the virtual watermark table according to Equation (2) to define a horizontal / vertical scale of the virtual watermark table.
(2)

(Where S is the set actual length, T is the number of horizontal pixels or vertical pixels of the original image, and U is the number of pixels per setting actual length of the source image corresponding to the telephoto magnification of the imaging apparatus).
Acquiring a source image including a structure, a liquid, and a reference table expression by communicating with a video image pickup device via a wired / wireless online network, and storing the acquired source image in an information storage area;
A structure image region as a result of image processing by separating the original image from the original image so as to separate only the structure portion, a liquid image region as a result of image processing for separating only the liquid portion from the original image, Separating the reference mark image area into a reference mark image area, which is an output result of image separation;
Reading the reference landmark image region to generate a virtual watermark in which a measurement scale and a horizontal / vertical scale are defined;
Reading the liquid image area to calculate a liquid immersion water level reflecting a liquid immersion level expected to erode a part of the virtual water table;
Generating a liquid hypothetical reflectance virtual watermark table in which a portion of the virtual watermark is erased by the liquid erosion level after reading the virtual watermark and the liquid erosion level;
Combining the raw image and the liquid immersion water level reflection virtual watermark table to generate a water level measurement support image and transmitting the water level measurement support image to the display terminal.
5. The method of claim 4,
Wherein the horizontal / vertical scale of the virtual water table calculates the scale of the virtual water table according to Equation (1) to define the horizontal / vertical scale of the virtual water table.
(1)

(Where M is the actual height or actual width of the reference landmark, N is the number of horizontal or vertical pixels of the source image, O is the number of horizontal pixels of the reference landmark included in the reference landmark image region, Number of vertical pixels.)
5. The method of claim 4,
Wherein the horizontal / vertical scale of the virtual water table is calculated by calculating a scale of the virtual water table according to Equation (2), and the horizontal / vertical scale of the virtual water table is defined.
(2)

(Where S is the set actual length, T is the number of horizontal pixels or vertical pixels of the original image, and U is the number of pixels per setting actual length of the source image corresponding to the telephoto magnification of the imaging apparatus).

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