KR101583598B1 - Camera, service server, system and method for processing high-resolution image - Google Patents

Camera, service server, system and method for processing high-resolution image Download PDF

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KR101583598B1
KR101583598B1 KR1020140110622A KR20140110622A KR101583598B1 KR 101583598 B1 KR101583598 B1 KR 101583598B1 KR 1020140110622 A KR1020140110622 A KR 1020140110622A KR 20140110622 A KR20140110622 A KR 20140110622A KR 101583598 B1 KR101583598 B1 KR 101583598B1
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pixel
image
information
comparison determination
image information
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이왕흠
이종섭
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태성전설 주식회사
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Abstract

The present invention relates to a high-resolution image processing camera, a service server, a system and a method thereof. According to the present invention, when a photographing module generates image information, a pixel dividing unit divides the image information for each pixel; a first comparison and determination unit compares an image pixel value of a previous frame with an image pixel value of a current frame; subsequently, a second comparison and determination unit compares an image pixel value of a frame with an image pixel value of a frame which is previous frame of an integer (i) frames, among pixels which is not changed in the first comparison and determination unit; when a pixel information generation unit generates pixel information, corresponding to pixels which is changed in the first comparison and determination unit and the second comparison and determination unit, and transmits the pixel information to a service server; and the service server combines a relevant pixel with previous image information by using the received pixel location information and stores image information for each time. According to the present invention, a problem of data processing overload in a wired/wireless communications network is solved and efficiency of network operation can be increased by receiving and transmitting only some pixels in the image information of resolution.

Description

{CAMERA, SERVICE SERVER, SYSTEM AND METHOD FOR PROCESSING HIGH-RESOLUTION IMAGE}

The present invention relates to a high-resolution image processing technique, and more particularly, to a high-resolution image processing camera, a service server, a system, and a method for comparing pixels between arbitrary frames and transmitting and receiving only a pixel whose change over a reference value is detected.

Surveillance cameras are installed in various locations for information gathering and security maintenance. Thus, surveillance cameras are used for various purposes such as information collection, security surveillance, traffic management, and industrial use.

Such a surveillance camera is expanding its utilization area by linking the function of its own image capturing with a mobile terminal. For example, a video captured by a surveillance camera installed in an area to be monitored can be transmitted to a mobile terminal through a mobile communication network, so that the surveillance area can be monitored regardless of time and place. A video surveillance system and method of a surveillance camera over a communication network have been proposed.

On the other hand, as the surveillance performance of the surveillance camera improves, it becomes possible to take a high resolution image, and it is possible to monitor, secure and track more precisely through such high resolution image. However, in order to process such a high-resolution image, a disadvantage arises in that a high-speed processing processor is required or a large-capacity storage is required. In addition, when a high-resolution image is transmitted through a mobile communication network or a network, the efficiency of network operation is deteriorated.

As described above, since a high-resolution surveillance camera has a much larger amount of image information acquired in comparison with a general surveillance camera, there are many disadvantages in the display / storage / transmission / processing of a high-resolution surveillance camera image. For example, when storing and transmitting a high-resolution surveillance camera image, the same compression rate as that of a general surveillance camera image is applied to store and transmit the image information, a much larger storage space or a high-speed communication line is required However, if the compression rate of the image information is increased, the contents of the high-resolution image may be damaged. In addition, when a high-resolution image captured at a high resolution is to be confirmed using a mobile terminal, real-time confirmation is substantially impossible, and even a high-capacity image can not be transmitted.

However, since the high-speed communication service such as LTE-A is realized, it is possible to transmit a large amount of video information. Accordingly, an efficient processing method for high-resolution video information is discussed.

Korean Patent Publication No. 10-2007-0043153 (Published April 25, 2007) Korean Registered Patent No. 10-0883632 (Published on Feb. 12, 2009)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide a high- Resolution image processing camera, a service server, a system, and a method, which can transmit and receive only pixels in which a change over a reference value is detected by comparing pixels.

According to an aspect of the present invention, there is provided a high-resolution image processing camera including: an imaging module for generating image information on a subject; (I) dividing the image information by each pixel, first comparing and judging the image pixel value between the immediately preceding frame and the current frame for each pixel, and comparing the current frame and the number (i) A pixel comparison determination module that performs secondary comparison of the previous inter-frame image pixel values and generates pixel information corresponding to the changed pixel from the primary comparison determination result and the secondary comparison determination result; And a transmission / reception module for transmitting the pixel information to a service server. Here, the pixel comparison determination module may include: a pixel division unit for dividing the image information for each pixel; A first comparison judging unit for comparing the image pixel value between the immediately preceding frame and the current frame for each of the divided pixels to judge whether or not the image pixel value is changed by more than a reference value; A second comparison determiner for comparing the current frame with a previous frame image pixel value among a plurality of pixels having no change of the reference value or more and determining whether the current pixel value is greater than or equal to the reference value; And a pixel information generation unit for generating pixel information corresponding to a pixel having a change in the first comparison determination unit and the second comparison determination unit.

According to another aspect of the present invention, there is provided a service server comprising: a time-based image information generating unit for receiving pixel information from the high-resolution image processing camera and combining time-varying image information and previous image information to generate time- And a database for storing time-based image information.

Meanwhile, in the high-resolution image processing system of the present invention, the photographed image information is divided into pixels to judge whether the image pixel value has changed or not, and when the change of the image pixel value is detected, pixel information A high-resolution image processing camera for transmitting the image; And a service server for generating and storing time-based image information through combination of the received pixel and previous image information using the received position information of the pixel.

According to another aspect of the present invention, there is provided a high-resolution image processing method comprising: generating image information in a photographing module; Dividing the image information by pixels in a pixel division unit; Comparing the image pixel value between the immediately preceding frame and the current frame in the first comparison determination unit; Comparing the image pixel value between the current frame and a previous frame of the number (i) of pixels having no change in the first comparison determination unit; Generating pixel information corresponding to a pixel having a change in the first comparison determination unit and the second comparison determination unit in a pixel information generation unit; And combining the pixel with the previous image information using the position information of the received pixel in the service server, and storing the image information for each time.

As described above, according to the high-resolution image processing camera, service server, system and method according to the present invention, by solving the problem of data processing overload in a wired / wireless communication network by transmitting / receiving only some pixels among high- Can be improved.

Further, by controlling the photographing conditions of the high-resolution image processing camera through the mobile terminal and the PC, various photographing such as resolution adjustment can be performed.

1 is a configuration diagram of a high-resolution image processing system according to an embodiment of the present invention.
2 is a configuration diagram of a high-resolution image processing camera according to an embodiment of the present invention.
3 is a configuration diagram of a pixel comparison determination module according to an embodiment of the present invention.
4 is a configuration diagram of a service server according to an embodiment of the present invention.
5 is a flowchart illustrating a high-resolution image processing method according to an embodiment of the present invention.

Hereinafter, the high-resolution image processing camera, service server, system, and method of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a high-resolution image processing system according to an embodiment of the present invention.

Referring to FIG. 1, the high-resolution image processing system of the present invention divides photographed image information into pixels to determine whether the image pixel value is changed or not, and detects the change of the image pixel value and the position information of the pixel A high-resolution image processing camera 1 for transmitting the pixel information including the received pixel information through wireless communication, and an image processing unit 3 for combining the received pixel and the previous image information using the position information of the pixel received through wireless communication, And a service server 2 for generating and storing information.

Here, it may further include a user terminal 3 that transmits control information relating to the photographing condition to the high-resolution image processing camera 1 via wireless communication.

In the high-resolution image processing system configured as described above, when image information is generated through shooting in the high-resolution image processing camera 1, the photographed image information is divided into pixels, and image pixel values are determined for each divided pixel, Extracts the detected pixels. Next, the extracted pixels are combined with the positional information of the pixels to generate pixel information, and pixel information is transmitted to the service server 2 through wireless communication. Accordingly, the service server 2 combines the pixel with the previous image information using the position information of the received pixel. And stores the generated time-based image information in a storage such as a database.

On the other hand, the photographing condition of the high-resolution image processing camera 1 is controlled by using the user terminal 3, or the image information per time is transmitted from the service server 2 in response to the request of the user terminal 3, To the terminal (3).

2 is a configuration diagram of a high-resolution image processing camera 1 according to an embodiment of the present invention.

2, the high-resolution image processing camera 1 according to the present invention includes an imaging module 11 for generating image information about a subject, and an imaging module 11 for dividing the image information transmitted from the imaging module 11 for each pixel, The image pixel value between the immediately preceding frame and the current frame is firstly compared and determined for each pixel, and then the image pixel value between the current frame and the frame before the number (i) A pixel comparison determination module 12 for receiving pixel information of a changed pixel from the comparison result of the difference comparison and the result of the second comparison and determining pixel information transmitted from the pixel comparison determination module 12 to the service server 2 And a transmission / reception module 13 for transmitting the data to the mobile station.

When the imaging module 11 generates the image information, the high-resolution image processing camera 1 configured as described above divides the image information for each pixel in the pixel comparison determination module 12, And the image pixel values between the current frame and the frame before the number (i) frame are compared with each other. As a result, pixel information is generated corresponding to the pixel having the change. Thereafter, pixel information is transmitted to the service server 2 through the transmission / reception module 13.

3 is a configuration diagram of the pixel comparison determination module 12 according to an embodiment of the present invention.

Referring to FIG. 3, the pixel comparison determination module 12 of the present invention includes a pixel divider 121 for dividing the image information transmitted from the imaging module 11 for each pixel, A first comparator 122 for comparing current pixel values of frames with each other to determine whether a difference between the reference pixel value and the reference value is greater than or equal to a predetermined value (error range, g) A second comparison determination unit 123 that compares the inter-frame image pixel values and determines whether the difference exceeds a reference value (error range, g); and a second comparison determination unit 123 And a pixel information generation unit 124 that generates pixel information corresponding to the changed pixel.

When the pixel division unit 121 divides the image information by pixels, the pixel comparison determination module 12 configured as described above first compares the image pixel value between the previous frame and the current frame in the first comparison determination unit 122. [ It is determined that there is a change when an error range (g) that can be set by the user is exceeded through comparison of image pixel values. Then, the image pixel value not deviating from the error range is compared with the image pixel value of the frame before the number (i) frame. This process is for judging whether or not the image information is continuously changed from within the error range. At this time, the error range can be g, and other setting values (values larger than g) can be used. The pixel information generating unit 124 generates pixel information corresponding to the changed pixel from the results of the first comparison determining unit 122 and the second comparison determining unit 123.

4 is a configuration diagram of a service server 2 according to an embodiment of the present invention.

Referring to FIG. 4, the service server 2 of the present invention receives pixel information through wireless communication and combines changed image information with previous image information to generate time-based image information. (21), and a database (22) for storing time-specific image information.

Here, the image information generation unit for each tie may combine the received pixel and the previous image information using the position information of the received pixel corresponding to the result of the first comparison determination unit 122 among the pixel information, And combines the received pixel with the previous image information using the position information of the received pixel corresponding to the result of the second comparison determination unit 123 among the pixel information to generate the time-based image information can do. That is, it is possible to separately generate the time-based image information by the first comparison determination unit 122 and the time-based image information by the second comparison determination unit 123. Of course, it is also possible to generate one-time-specific image information in which the results of the first comparison determination unit 122 and the second comparison determination unit 123 are combined.

The service server 2 configured as described above combines the changed image information and the previous image information based on the pixel information in the time-based image information generating unit 21 to generate image information for each time, And stores it in the database 22.

Hereinafter, the high-resolution image processing method of the present invention using the system configured as described above will be described.

5 is a flowchart illustrating a high-resolution image processing method according to an embodiment of the present invention.

Referring to FIG. 5, when the imaging module 11 generates the image information (S1), the pixel division unit 121 of the pixel comparison determination module 12 divides the image information by pixels (S2).

RGB color (#RRGGBB) is divided into Red, Green, and Blue

Figure 112014080303878-pat00001
. here,
Figure 112014080303878-pat00002
,
Figure 112014080303878-pat00003
,
Figure 112014080303878-pat00004
,
Figure 112014080303878-pat00005
,
Figure 112014080303878-pat00006
,
Figure 112014080303878-pat00007
Are preferably hexadecimal values of 0 to f.

The image pixel value (color value) of the current frame is

Figure 112014080303878-pat00008
, And the immediately preceding frame
Figure 112014080303878-pat00009
, The RGB color value of the current frame is
Figure 112014080303878-pat00010
, And the RGB color value of the immediately preceding frame is
Figure 112014080303878-pat00011
.

Next, the first comparison determination unit 122 compares the image pixel value between the previous frame and the current frame (S3).

The error range is g, the red color value of the current frame is

Figure 112014080303878-pat00012
If the red color value of the current frame is within the error range, it can be expressed as follows.

Figure 112014080303878-pat00013

In this manner, the RGB color values are classified into Red, Green, and Blue, respectively, and the color values of the current frame and the color values of the previous frame are compared with each other to determine whether they are within an error range.

Figure 112014080303878-pat00014
--- Equation (1)

Figure 112014080303878-pat00015
--- (2)

Figure 112014080303878-pat00016
--- (3)

If (1) && (2) && (3) = TRUE,

Figure 112014080303878-pat00017
(1) && (2) && (3) = FALSE, the color value and the address for the mismatched pixels for screen mapping are transmitted Address to the service server 2.

On the other hand, the second comparison determination unit 123 compares the color value of the previous frame with the color value of the current frame (S4).

Figure 112014080303878-pat00018
The comparison between the color value before the frame and the color value of the current frame is as follows.

Figure 112014080303878-pat00019
〓〓
Figure 112014080303878-pat00020
--- (4)

Figure 112014080303878-pat00021
〓〓
Figure 112014080303878-pat00022
- (5)

Figure 112014080303878-pat00023
〓〓
Figure 112014080303878-pat00024
- (6)

If Equation (4) && (5) && (6) = TRUE, it is within the error range compared to the previous frame

Figure 112014080303878-pat00025
(4) && (5) && (6) = FALSE, it is within the error range as compared with the previous frame.
Figure 112014080303878-pat00026
Since there is a change compared to before the frame, the current color value and the address address are transmitted to the service server 2 for screen mapping (S5).

Then, the service server 2 generates image information for each time by combining the changed image information and the previous image information based on the pixel information in the time-based image information generating unit 21 (S6) In the database 22 (S7).

On the other hand, if it is within the error range in steps S3 and S4, the address of the immediately preceding frame is mapped and stored, and is provided as the previous image information for comparison with the image information of the next frame (S8).

The user terminal 3 is used to control the photographing conditions of the high resolution image processing camera 1 or to send time-based image information from the service server 2 to the user To the terminal (3).

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, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

1: High resolution image processing camera 11: Shooting module
12: pixel comparison judgment module 121: pixel division section
122: first comparison judgment unit 123: second comparison judgment unit
124: Pixel information generation unit 13: Transmission / reception module
2: service server 21: time-specific image information generating unit
22: Database 3: User terminal

Claims (6)

delete delete delete An imaging module for generating image information on a subject; (I) dividing the image information by each pixel, first comparing and judging the image pixel value between the immediately preceding frame and the current frame for each pixel, and comparing the current frame and the number (i) A pixel comparison determination module that performs secondary comparison of the previous inter-frame image pixel values and generates pixel information corresponding to the changed pixel from the primary comparison determination result and the secondary comparison determination result; And a transmission / reception module for transmitting the pixel information to a service server, the high resolution image processing camera comprising:
A time-based image information generating unit for receiving pixel information from the high-resolution image processing camera and combining the changed image information and previous image information to generate time-based image information; And a database for storing the time-based image information,

Wherein the pixel comparison determination module comprises:
A pixel divider for dividing the image information for each pixel;
A first comparison judging unit for comparing the image pixel value between the immediately preceding frame and the current frame for each of the divided pixels to judge whether or not the image pixel value is changed by more than a reference value;
A second comparison determiner for comparing the current frame with a previous frame image pixel value among a plurality of pixels having no change of the reference value or more and determining whether the current pixel value is greater than or equal to the reference value; And
And a pixel information generation unit for generating pixel information corresponding to a pixel having a change in the first comparison determination unit and the second comparison determination unit,

And transmits the current frame image pixel value and the address address to the service server when the pixel value changes by a reference value or more according to the first comparison,
And transmits the current frame image pixel value and the address address to the service server when the pixel value changes by a reference value or more according to the secondary comparison determination,
Wherein the reference value used in the secondary comparison determination is larger than the reference value used in the primary comparison determination.
5. The method of claim 4,
Further comprising: a user terminal for transmitting control information relating to a photographing condition to the high-resolution image processing camera.
A high-resolution image processing method using the high-resolution image processing system of claim 4,
Generating image information in a photographing module;
Dividing the image information by pixels in a pixel division unit;
Comparing the image pixel value between the immediately preceding frame and the current frame in the first comparison determination unit;
Comparing the image pixel value between the current frame and a previous frame of the number (i) of pixels having no change in the first comparison determination unit;
Generating pixel information corresponding to a pixel having a change in the first comparison determination unit and the second comparison determination unit in a pixel information generation unit; And
And combining the pixel with the previous image information using the position information of the received pixel in the service server to store the image information for each time,
When the pixel value is changed by more than a reference value in accordance with the first comparison determination in the first comparison determination unit, transmits the current frame image pixel value and the address address to the service server,
And transmits the current frame image pixel value and the address address to the service server when the pixel value changes by a reference value or more according to the secondary comparison determination in the second comparison determination unit,
Wherein the reference value used in the secondary comparison determination is larger than the reference value used in the primary comparison determination.
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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN107222715A (en) * 2017-06-15 2017-09-29 杭州联吉技术有限公司 A kind of method, device and the computer-readable recording medium of remote playing video
KR20210157087A (en) 2020-06-19 2021-12-28 주식회사 메디칼타임즈 System for displaying high quality image optimized with user environment

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KR20070043153A (en) 2005-10-20 2007-04-25 에스케이 텔레콤주식회사 System for servicing image of security camera using mobile communication network
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KR20070043153A (en) 2005-10-20 2007-04-25 에스케이 텔레콤주식회사 System for servicing image of security camera using mobile communication network
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CN107222715A (en) * 2017-06-15 2017-09-29 杭州联吉技术有限公司 A kind of method, device and the computer-readable recording medium of remote playing video
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