KR101575893B1 - Communication system using color image and method thereof - Google Patents

Abstract

The present invention relates to an image processing apparatus including a status recognizing unit for outputting a first type of event signal, an RGB value modulating and outputting an R (red) value, a G (green) value, and a B And a notification color unit for displaying the R value, the G value, and the B value received from the RGB value adjuster in a first color obtained by combining the R value, the G value, and the B value, An image extracting unit for extracting an image of a region of interest of the image photographed by the photographing unit, an R value calculating unit for calculating an R value for the first color in the image of the region of interest, A G value and a B value, and demodulates the R value, the G value and the B value into the first type event signal; And an operation control unit for controlling the operation of the second object Relates to a communication method using the communication system and this, using the image having the color information reading unit.

Description

Technical Field [0001] The present invention relates to a communication system using a video,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system and method for communication between objects located in a short distance, and more particularly, to a communication system using a color image.

Generally, the wireless communication between the objects located at a short distance uses radio waves, that is, zigbee communication, radio frequency (RF) communication, and Bluetooth communication.

However, it is not easy to transmit / receive data between neighboring vehicles without frequency overlapping in a dense area or the like because of a communication method using near field wireless communication. That is, if there are a plurality of communication terminals using the same frequency channel in the vicinity, the communication performance using the short-range wireless communication is disadvantageously deteriorated.

SUMMARY OF THE INVENTION The present invention provides a communication system and method using an image that does not interfere with information transmission between objects in a dense area and is easy to transmit information.

According to another aspect of the present invention, there is provided a communication system using an image. The system includes a status detector for outputting a first type of event signal, an RGB value modulating the R (red) value, the G (green) value, and the B And a notification color unit for displaying the R value, the G value, and the B value received from the RGB value adjuster in a first color obtained by combining the R value, the G value, and the B value, An image extracting unit for extracting an image of a region of interest of the image photographed by the photographing unit, an R value calculating unit for calculating an R value for the first color in the image of the region of interest, A G value and a B value, and demodulates the R value, the G value and the B value into the first type event signal; And an operation control unit for controlling the operation of the second object Have the color information reading unit for.

The notification color portion further displays a reference R (red) color, a reference G (green) color, and a reference B (blue) color.

In the reference R color, the R value is the first set value, the G value and B value are "0 ", the G value of the reference G color is the second set value, the R value and the B value are & In the color, the B value is the third set value, and the R value and the G value are "0 ".

The RGB value obtaining unit obtains R, G, and B values for the reference R color, the reference G color, and the reference B color in the ROI, G, and B values of the first color are compared with the R, G, and B values of the first color by comparing the R value, the G value, and the B value, Value to determine the final R value, G value, and B value for the first color.

According to another aspect of the present invention, there is provided a communication method using an image. The communication method includes a first step of generating an event signal of a first type at a first object, a first step of generating an event signal of a second type corresponding to an event signal of the first type at the first object, a second step of modulating the R value, the G value and the B value modulated by the first object in a first color obtained by combining the R value, the G value and the B value; A fifth step of extracting an image of a region of interest out of the images photographed by the second object, a fourth step of photographing the first color at a second object, A sixth step of determining an R value, a G value and a B value, a seventh step of demodulating the R value, the G value and the B value determined in the second object into the first type event signal, And performing an operation control corresponding to the demodulated event signal of the first type.

The third step further displays the reference R (red) color, the reference G (green) color, and the reference B (blue) color.

In the sixth step, the R value, the G value and the B value for the reference R color, the reference G color, and the reference B color in the ROI are grasped, and the obtained R value, G value, G, and B values of the first color are compared with the R, G, and B values of the first color by comparing the R value, the G value, and the B value, Value to determine the final R value, G value, and B value for the first color.

According to the embodiment of the present invention, the first object displays the information to be transmitted in color, and the second object obtains the RGB value of the color of the first object, . In addition, according to the embodiment of the present invention, the color transmitted from the first object is photographed at a plurality of second objects, and the 1: N communication is facilitated by grasping the RGB values for the colors and reading the information.

1 is a conceptual diagram of a communication system and method using an image according to an embodiment of the present invention.
2 is a block diagram of a vehicle-to-vehicle communication system using an image according to an embodiment of the present invention.
3 is a block diagram of an alarm color unit according to the first embodiment of the present invention.
4 is a block diagram of an alarm color unit according to a second embodiment of the present invention.
5 is a configuration diagram of an alarm color unit according to a third embodiment of the present invention.
6 is a diagram illustrating an example of using RGB values according to an embodiment of the present invention.
7 is a flowchart illustrating a method of communicating between vehicles using an image according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Hereinafter, a video communication system and method according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a conceptual diagram of a communication system and method using an image according to an embodiment of the present invention. 1, a communication system and method using an image according to an exemplary embodiment of the present invention includes a color information transmitting apparatus 100 (hereinafter referred to as a " color information transmitting apparatus " And the color information reading apparatus 200 is installed in the second object B. Of course, the color information transmitting apparatus 100 and the color information reading apparatus 200 may be installed in the first and second objects A and B, respectively.

The color information transmitting apparatus 100 of the first object A converts (modulates) information to be transmitted by the first object A into R value, G value and B value, and outputs the converted R value, G value, The B value is displayed externally in the combined color.

The color information reading apparatus 200 of the second object B receives the color indicated by the color information transmitting apparatus 100 by photographing and analyzes the corresponding color in the image generated through the photographing to obtain R Value, G value, and B value. Then, the R value, the G value and the B value are demodulated, and the information is transmitted to the first object A to grasp the corresponding information.

On the other hand, the color information transmitting apparatus 100 of the second object B displays information corresponding to the information read by the color information reading apparatus 200 of the first object A in color, The color information reading apparatus 200 of the image processing apparatus A can read the color and grasp the information.

1, communication using an image between one first object A and one second object B has been described. However, the present invention is not limited to this, and one first object A and one second object B may be used. Communication using an image can be performed between the plurality of second objects B.

Hereinafter, a video communication system and method according to an embodiment of the present invention will be described in detail with reference to FIG. 2 as applied to a vehicle.

Hereinafter, the communication system and method using video according to the embodiment of the present invention are referred to as "video-based inter-vehicle communication system and method"

  2 is a block diagram of a vehicle-to-vehicle communication system using an image according to an embodiment of the present invention. 2, an inter-vehicle communication system using an image according to an exemplary embodiment of the present invention includes a color information transmitting apparatus 100 and a color information reading apparatus 200. As shown in FIG. The color information transmitting apparatus 100 and the color information reading apparatus 200 are provided respectively in the front vehicle A and the rear vehicle B but the color information transmitting apparatus 100 and the rear vehicle B of the color information reading apparatus 200. [

The color information transmitting apparatus 100 may be installed on a license plate, a taillight, or an arbitrary position on the rear surface. The color information transmitting apparatus 100 includes a plurality of sensors 111 to 113, a status detector 120, an RGB value controller 130, and a notification color unit 140.

The plurality of sensors 111 to 113 are sensors for grasping the operating state of the vehicle and correspond to various sensors installed in the currently released vehicle. Although only three sensors are shown in FIG. 2 for the sake of understanding, the number of sensors constituting the plurality of sensors may be three or more. Of course, the present invention can be made up of only one sensor, not a plurality of sensors.

The first sensor 111 of the plurality of sensors 111 to 113 is a vehicle speed sensor for measuring the vehicle speed and the second sensor 112 is a sensor for measuring the strength of the braking force 3 sensor 113 is a sensor for grasping the degree of steering of the handle.

The state detector 120 generates an event signal according to a signal received from each of the sensors 111 to 113 and a signal received from an internal communication device (not shown), and provides the event signal to the RGB value controller 130. The event signal is information to be transmitted to the outside as color through the notification color unit 140 and is a signal for the vehicle running state, that is, the vehicle speed, the degree of braking, the degree of steering steering (steering direction and rotation angle, (E.g., air-on / off, start-on / off, audio on / off, volume information, etc.) received from the outside. The state detecting unit 120 corresponds to an electronic control unit (ECU) of an automobile, for example.

G value and B value according to the vehicle running state or transmission information provided by the state determination unit 120 and outputs the determined R value, G value, and B value to the notification color unit (140). Here, the RGB value adjusting unit 130 stores set values for the R value, the G value, and the B value corresponding to the vehicle running state and the transmission information. The RGB value adjuster 130 grasps the R, G, and B values of a plurality of colors when a plurality of kinds of event information are received, and provides the R, G, and B values to the notification color unit 140.

The notification color unit 140 includes a plurality of display devices. The notification color unit 140 combines R, G, and B values of at least one color received from the RGB value control unit 130, Display in color. For example, the display unit of the notification color unit 140 is implemented by an LCD (Liquid Crystal Display) or an LED (Light Emitting Diode). The display mode of the notification color unit 140 may be a display mode such as a mobile screen or a TV screen, or may include an R display element, a B display element, and a G display element to adjust the display intensity of each display element, So that it can be displayed. Of course, all the conventional color display systems other than those described above can be applied to the display mode of the notification color unit 140. [

The color information reading apparatus 200 includes a photographing unit 210, an image extracting unit 220, an RGB value obtaining unit 230, and an operation control unit 240.

The photographing unit 210 may be a camera, an image sensor, a black box, or the like, which can image the color displayed in the notification color unit 140. The image extracting unit 220 extracts the color in the region of interest from among the color images generated by the photographing unit 210. The area of interest is an area in which the color is displayed by the notification color unit 140 and has an identifiable indication at the time of image analysis. That is, the image extracting unit 220 recognizes whether or not there is an identification mark indicating an area of interest in the image photographed by the photographing unit 210, and determines an area having the identification mark as an area of interest, and extracts the area of interest.

The RGB value determination unit 230 determines the R value, the G value, and the B value for the color of the ROI based on the reference R value, the reference G value, and the reference B value, and obtains the R value, G value, and B value And determines information included in the event signal, that is, the vehicle running state or the transmission information. The operation control unit 240 controls the operation of the vehicle according to the event information detected by the RGB value determination unit 230.

At this time, the operation control of the vehicle is performed by adjusting the accelerator pedal to adjust the speed in accordance with the speed change of the front vehicle A, or by adjusting the speed of the front vehicle A And the steering of the steering wheel in accordance with the traveling direction of the steering wheel.

Hereinafter, an alarm color unit according to an embodiment of the present invention will be described with reference to FIGS.

FIG. 3 is a block diagram of an alarm color unit according to the first embodiment of the present invention, in which a part of the alarm color unit 140 is displayed in color.

As shown in FIG. 3, the alarm color unit 140 includes a plurality of LEDs or LCD displays arranged in a line. Reference numeral 10 denotes a display device for displaying a reference red color, reference numeral 11 denotes a display device for displaying a reference color, and reference numeral 12 denotes a display device for displaying a reference blue color.

Generally, colors are displayed differently depending on ambient lighting, weather, and the like. That is, even if the color information transmitting apparatus 100 displays the same color, the color read by the color information reading apparatus 200 varies depending on ambient light, rain, snow, fog, and the like. Even if the color information transmitting apparatus 100 displays the same color in this way, if the color information reading apparatus 200 recognizes a different color, a desired result can not be obtained. That is, the reliability is lowered.

In order to solve this problem, the alarm color unit 140 includes a reference red color display device 10 (hereinafter, referred to as a reference R display device), a reference green color display device 11 Hereinafter referred to as a reference G display device) and a reference blue color display device 12 (hereinafter referred to as a reference B display device). The reference R display device 10 displays the reference red R and the reference G display device 11 displays the reference green G and the reference B display device 12 displays the reference blue B .

The RGB values of the reference colors R, G and B of the reference color display devices 10, 11 and 12 can be grasped by the ambient illumination or the weather, So that the RGB values can be grasped. The reference red R of the reference R display device 10 is a color whose R value is a set value (e.g. 100) and whose G value and B value are "0 & ) Is a color in which the G value is a set value (e.g. 100) and the R value and the B value are "0 ", and the reference color B of the reference B display device 12, And the R value and the G value are "0 ".

In FIG. 3A, three display devices 13 (hereinafter referred to as a data color display device) for displaying a vehicle running state or transmission information, and all three are shown as one data color C1. Further, the data color display device 13 is shown as being located between two reference color display devices (two of 10, 11, 12).

Accordingly, the image extracting unit 220 extracts at least one color image from among the three data color display devices 13, and the RGB value obtaining unit 130 obtains the reference R color of the reference color display devices 10 to 12 The R value, the G value and the B value for each of the reference G color and the reference B color are determined, and the obtained R value, G value and B value are compared with the respective set values set for the R value, G value and B value G, and B values of the data color, and the difference values for the R value, the G value, and the B value are reflected to the R value, the G value, and the B value for the data color, Value, G value, and B value. Then, it demodulates the event information transmitted from the color information transmitting apparatus 100 to the final R value, G value, and B value thus determined.

Here, the positions of the reference color display devices 10, 11, and 12 and the relative positions of the data color display device 13 corresponding thereto are set such that the positions or the numbers of the display devices 10 to 14 are made to be fixed numbers and positions And it is not important because the position value or order is set.

As another example, there is a form of FIG. 3 (b). In FIG. 3 (b), three data color display devices 13 and three data colors C1, C2, and C3 are displayed. Here, the three different data colors (C1, C2, C3) represent different vehicle running conditions, or three combinations represent one vehicle running condition. In this case, the image extracting unit 220 extracts all the images of the three different data colors (C1, C2, C3) and provides them to the RGB value acquiring unit 230.

Hereinafter, a display state of the alarm color unit according to the second embodiment of the present invention will be described with reference to FIG. 4 is a block diagram of an alarm color unit according to a second embodiment of the present invention.

As shown in FIG. 4, the alarm color unit 140 according to the second embodiment of the present invention is installed on a license plate of a vehicle, and a plurality of display devices are configured in a rectangular shape. Three reference color display devices 10 to 12 are formed on the upper side, and a plurality of data color display devices 13 are formed on the lower side on the upper side and the lower side, respectively. At this time, the plurality of data color display devices 13 display one color C1.

Hereinafter, the display state of the alarm color unit according to the third embodiment of the present invention will be described with reference to FIG. 5 is a configuration diagram of an alarm color unit according to a third embodiment of the present invention.

As shown in FIG. 5, the alarm color unit 140 according to the third embodiment of the present invention is installed on a license plate of a vehicle, and a plurality of display devices are configured in a rectangular shape. Three reference color display devices 10 to 12 are formed on the upper side, and a plurality of data color display devices 13 are formed on the left side and the right side, respectively. At this time, the data color display device 13 located on the left side displays the first color C2 and the data color display device 13 installed on the right side displays the second color C3 different from the first color C2 .

Hereinafter, an example of using RGB values will be described with reference to FIG. 6 is an example of the use of RGB values according to an embodiment of the present invention.

Generally, a color is generated by a combination of an R value, a G value, and a B value. This means that if one color is used, it can have at least three pieces of information. Each of the R value, the G value, and the B value may have a digital value from 0 to 255. [ This means that at least one of R value, G value and B value can represent a lot of information.

Therefore, as shown in FIG. 6 (a), the RGB value controller 130 causes the R value to indicate the vehicle speed for one color, the G value to indicate the value corresponding to the brake, and B Value may be set to indicate a value corresponding to the hand steering.

6 (b), the RGB value adjustment unit 130 uses the R value as information for grasping the type of the vehicle running state, uses the G value as actual data, And can be used as data.

Further, as shown in FIG. 6 (b), it is possible to transmit more kinds of information and more various information when combining with different colors. That is, information such as information through the color of the color, information according to the color change with time, information according to the position of the color, information according to the size of the color region, information according to the surface pattern, Information transmission method, it is possible to transmit a large amount of information and a large amount of information.

Hereinafter, an inter-vehicle communication method using an image according to an embodiment of the present invention will be described with reference to FIG. FIG. 7 is a flowchart illustrating a method of communicating between vehicles using an image according to an exemplary embodiment of the present invention, in which the color information transmitting apparatus 100 provides one event information to the color information reading apparatus 200. FIG.

The state recognition unit 120 of the color information transmission apparatus 100 receives the output of the vehicle speed sensor 111 (S701), recognizes the current speed of the vehicle as a received signal, And provides it to the control unit 130 (S702). The event signal for the vehicle speed is, for example, an event signal indicating that the speed of the current vehicle is 100 km / h.

The RGB value adjuster 130 grasps the speed of the vehicle included in the event signal, grasps the R, G, and B values corresponding to the detected vehicle speed from the set values, Value, a G value, and a B value are provided (S703).

The notification color unit 140 recognizes the R value, the G value, and the B value received from the RGB value adjusting unit 130, and supplies the color generated by the combination of the R value, the G value, and the B value to the data color display unit 13 (Step S704). At the same time, the notification color portion 140 displays the reference R, B, and B colors set in the reference color display devices 10, 11, and 12.

The photographing unit 210 of the color information reading apparatus 200 photographs forward and provides the photographed image to the image extracting unit 220 (S706). In operation S707, the image extracting unit 220 determines whether a region of interest is included in the photographed image, reads the region of interest, and extracts an image of the region of interest when the region of interest is present.

The image extracting unit 220 extracts a video image of a region of interest and provides the extracted video image to the RGB value extracting unit 230. Then, the RGB value extractor 230 finds the R, G, and B reference colors at the set position in the extracted region (i.e., the region of interest) and calculates the R value (digital value) of the R reference color, the G value Digital value) and the B value (digital value) of the B reference color (S708).

Then, the RGB value extracting unit 230 compares the digital values of the R, G, and B reference colors with the set reference R value, G value, and B value to determine the difference value (S709). The RGB value extractor 230 obtains the R, G, and B values of the data color of the data color display device 13 at the set position in the ROI, and outputs the difference value obtained in step S709 as the data color (Compensated) to the R value, the G value and the B value (S710), and grasps the R value, the G value and the B value of the compensated data color (S711).

The RGB value extractor 230 provides the R, G, and B values of the compensated data color to the operation controller 240. The operation controller 240 receives the R, G, and B values of the received data color, (I.e., the current speed of the vehicle) of the color information transmitting apparatus 100 corresponding to the R value, the G value, and the B value of the data color (S240).

The embodiments of the present invention described above are not only implemented by the apparatus and method but may be implemented through a program for realizing the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded, The embodiments can be easily implemented by those skilled in the art from the description of the embodiments described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

A: forward vehicle B: rear vehicle
100: Color information transmitting apparatus 200: Color information reading apparatus
120: state determination unit 130: RGB value adjustment unit
140: notification color unit 210: photographing unit
220: image extracting unit 230: RGB value determining unit
240:

Claims (8)

A color information transmitting apparatus provided in the first object, and a color information reading apparatus provided in the second object,
The color information transmitting apparatus comprising:
A state detector for outputting a first type of event signal,
An RGB value adjusting unit for modulating the R, G, and B values corresponding to the first type event signal to R (red) value, G (green) value, and B (blue)
And a notification color unit for displaying the R value, the G value, and the B value received from the RGB value adjusting unit in a first color obtained by combining the R value, the G value, and the B value,
Wherein the color information reading unit comprises:
A photographing unit photographing the first color displayed by the notification color unit,
An image extracting unit for extracting an image of a region of interest among the images photographed by the photographing unit,
An RGB value acquiring unit for acquiring an R value, a G value, and a B value for the first color in the image of the ROI, demodulating the R value, the G value, and the B value into the event signal of the first type,
And an operation control unit for grasping the first type event signal provided by the RGB value acquisition unit and controlling the operation of the second object,
Wherein the notification color portion further displays a reference R (red) color, a reference G (green) color, and a reference B (blue) color. delete The method of claim 1,
In the reference R color, the R value is the first set value, the G value and the B value are "0 &
In the reference G color, the G value is the second set value, the R value and the B value are "0 &
The reference B color is characterized in that the B value is the third set value and the R value and the G value are "0 &
Communication system using video. The method according to claim 1 or 3,
The G value and B value for each of the reference R color, the reference G color, and the reference B color in the ROI, and outputs the obtained R value, G value, and B value to the first, G value and B value of the first color is compared with the R value, G value and B value of the first color by comparing the R value, the G value and the B value with the third set value, G, and B values for the first color by referring to the first R, G, and B values.
Communication system using video. A first step of generating a first kind of event signal in a first object,
A green (G) value and a blue (B) value corresponding to the event signal of the first type in the first object;
A third step of displaying the R value, the G value and the B value modulated by the first object in a first color obtained by combining the R value, the G value and the B value,
A fourth step of photographing the first color at the second object,
A fifth step of extracting an image of a region of interest among the images photographed by the second object,
A sixth step of grasping an R value, a G value and a B value for the first color in the image of the ROI at the second object,
A seventh step of demodulating the R, G, and B values detected in the second object into the first type event signal,
And an eighth step of performing an operation control corresponding to the event signal of the first type demodulated by the second object,
Wherein the third step further displays a reference R color, a reference G color, and a reference B color. delete The method of claim 5,
In the reference R color, the R value is the first set value, the G value and the B value are "0 &
In the reference G color, the G value is the second set value, the R value and the B value are "0 &
The reference B color is characterized in that the B value is the third set value and the R value and the G value are "0 &
A communication method using video. The method of claim 5 or 7,
The sixth step determines R, G, and B values of the reference R color, the reference G color, and the reference B color in the ROI, and obtains the R value, the G value, and the B value, G value and B value of the first color is compared with the R value, G value and B value of the first color by comparing the R value, the G value and the B value with the third set value, G, and B values for the first color by referring to the first R, G, and B values.
A communication method using video.

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