KR101415691B1 - Streaming video coverter - Google Patents

Abstract

A streaming video converter is provided. The streaming video converter of the present invention comprises the following: an image input unit which receives real-time video data from CCTVs or a DVR; a video reproduction unit which selects a codec when a separate codec is required to play the received real-time video data, and plays the real-time video data using the selected codec; a video output unit which outputs the played real-time video data to a video output port; a video converting unit which converts an output signal, outputted to the video output port by the video output unit into a streaming video in real time; and a video streaming unit which creates a URL and provides a client accessing the created URL with the converted streaming video in a streaming mode. According to the present invention, the streaming video converter is connected to the DVR and the CCTVs to transmit videos inputted therefrom through a network, thereby enabling users to access a streaming video only by accessing a link regardless of the characteristics of the DVR. Therefore, a large number of existing DVRs and CCTVs incompatible with each other can be integrated with each other.

Description

{STREAMING VIDEO COVERTER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for converting a streaming video in real time and transmitting the same.

Currently, there are more than 100 million CCTV cameras and 25 million DVRs installed in Korea. Recently, the trend of CCTV technology has shifted from using CCTV as a black box function for recording video to real-time video service through mobile or internet.

For example, the diffusion of home network cameras interlocked with mobile shows the trend of these technologies.

It is expected that it will be possible to provide real-time video service if the existing CCTVs and DVRs are used in mobile or web environment.

To do so, it is necessary to develop a platform capable of integrating a large number of existing CCTV and DVRs.

Meanwhile, DVRs according to the prior art have a wide variety of types, including about 250 types of H.264 standard DVR and 960 DVR that are commercially available in Korea, about 300 kinds of HD hybrids and HD DVRs to be.

DVR, door lock, and interphone are very closed due to the nature of the market, and there is a problem that the interchangeability between the products of other companies is remarkably low.

Therefore, it seems impossible to integrate these off-the-shelf DVRs unless the firmware or source is open.

A new approach is needed to integrate these CCTV and DVRs with significantly less interoperability.

[Patent Document 1] Korean Patent Laid-Open No. 10-2011-0012096 "Personal Video Recorder capable of Docking with iPod" [Patent Document 2] Korean Patent Publication No. 10-2007-0005879 entitled "Content playback system, content providing method, content playback apparatus, content providing apparatus, content playback program, [Patent Document 3] Korean Utility Model Registration No. 20-0157789 entitled "Real-time display system of video camera data"

An object of the present invention is to provide a DVR capable of accessing a streaming video by connecting only a plurality of DVRs and CCTVs, Converter.

It is another object of the present invention to provide a converter for easily accessing a corresponding streaming image at any time by providing an image file of a streaming image to a client connected through a network.

According to an aspect of the present invention, there is provided a streaming video converter comprising: video input means for receiving real-time video data from a CCTV or a DVR;

Video reproducing means for selecting a codec when the input real-time video data is required to reproduce the real-time video data and reproducing the real-time video data using the selected codec;

Video output means for outputting the reproduced real time video data to a video output port;

Image converting means for real-time converting an output signal outputted to the video output port by the video output means into a streaming image;

and a video streaming unit for providing the converted streaming video by a streaming method to a client connected with the generated url.

At this time, the video output means sets up a virtual multiple monitor, and outputs an image to a video output port of each set monitor. The video streaming means generates a plurality of URLs, and each streaming video , And host each streaming video via the assigned url.

On the other hand, an image file for each image provided by the video streaming means is generated using a predefined algorithm, and predetermined identification information in EXIF of each generated image file and video data provided by the video streaming means And an image providing means for storing the URL of the URL and providing the image file to a client connected through a network.

At this time, the image generated by the image providing means may be a screen capture image of an image, or an image file obtained by converting the url from which the image is transmitted into a QR code.

According to the present invention, a plurality of DVRs and CCTVs are connected to transmit images input from the DVRs and CCTVs through a network, thereby allowing users to access the streaming video only by connecting the DVR to the DVR .

This results in the integration of many DVRs and CCTVs that are not compatible with each other.

FIG. 1 is a diagram illustrating a relationship between a streaming video converter connected to a CCTV and a DVR to transmit video to a client through a network,
2 is a functional block diagram illustrating a configuration of a streaming video converter according to the present invention,
3 is a view for explaining a process of separating an output image from a CCTV or a DVR when two or more images are included,
4 is a view for explaining a process of generating an image for each image provided by the streaming method,
5 is a view for explaining a process of storing predetermined information in an EXIF of an image generated for each image,
6 is a reference diagram for explaining the outline of a streaming video converter according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to preferred embodiments and accompanying drawings. In order to clarify the present invention, contents which are not related to the configuration of the present invention will be omitted, and the same reference numerals are used for the same components.

On the other hand, when an element is referred to as being "comprising" another element in the description of the invention or in the claims, it is not interpreted as being limited to only that element, Elements may be further included.

Also, in the description of the invention or the claims, the components named as "means", "parts", "modules", "blocks" refer to units that process at least one function or operation, Each of which may be implemented by software or hardware, or a combination thereof.

FIG. 1 is a diagram illustrating a relationship between a streaming video converter connected to a CCTV and a DVR to transmit video to a client through a network.

Referring to FIG. 1, a streaming video converter 100 according to the present invention is connected to a plurality of CCTV 1 or DVR 2. The streaming video converter 100 receives video signals from the respective CCTV 1 or DVR 2 connected thereto.

The streaming video converter 100 hosts the inputted video signal through the network and the clients 10 connected to the streaming video converter 100 via the Internet are connected to the CCTV 1 or the DVR 2 The image can be displayed on the screen by being provided by the streaming method.

The client 10 may be a smartphone, a tablet, a laptop, or a personal computer. However, the client 10 can access the Internet network by a wired / wireless communication method and play the video provided by the streaming method If it is possible, it does not limit its form.

2 is a functional block diagram illustrating a configuration of a streaming video converter according to the present invention.

2, the streaming video converter 100 according to the present invention includes a video input unit 110, a video playback unit 120, a video output unit 130, an video conversion unit 140, Streaming means 150 and image providing means 160. [

At this time, the video input means 110 receives real time video data from a plurality of CCTV (1) or DVR (2).

The CCTV 1 may be connected to a digital communication bus such as USB. In the case of the spherical type, the video input means 110 provides image information captured in real time through a video output terminal of an analog system.

The DVR 2 is connected to a plurality of CCTVs 1 and records images from each CCTV 1.

At this time, it is general to record by compression according to a standard such as h.264. On the other hand, the DVRs 2 require a dedicated viewer for each vendor, and sometimes they record using different codecs.

On the other hand, the DVR 2 inputs the video data thus recorded to the video input means 110.

The video reproducing means 120 reproduces the video data inputted to the video input means 110 in this way.

A separate codec may be required to reproduce the received video data, except for the case where the video data is input through the video output terminal of the analog system as in the case of the spherical CCTV (1).

When the codec is required for reproducing the input video data, the video reproducing means 120 selects a corresponding codec from the pre-installed codec and reproduces the video data using the selected codec.

On the other hand, if each of the connected DVRs 2 requires a dedicated viewer, the video reproducing means 120 mounts a dedicated viewer for each DVR 2 and executes the video stream from the DVR 2 do.

On the other hand, the video output means 130 outputs the video data reproduced by the video reproduction means 120 to the video output port.

1, the streaming video converter 100 according to the present invention may include a video output port for connection to a monitor. The video output unit 130 outputs video data to be played back to a video output port, , So that the user can view it through a monitor or the like.

On the other hand, the image converting means 140 converts the output signal outputted to the video output port by the video output means 130 into the streaming image in real time.

Then, the video streaming unit 150 streams the streaming video converted by the video converting unit 140 through the Internet.

For this, the video streaming unit 150 generates a URL, and when the client 10 accesses the generated url, it connects the communication session to the client 10 and transmits the converted streaming video in real time by streaming to provide.

In this process, the users of the client 10 can view the video of the DVR 2 using various codecs and different exclusive viewers without any additional encoding by using the streaming method.

Preferably, the video streaming means 150 may stream through an HTML5 player or a WebM codec.

In this case, the users of the client 10 can access the images of the CCTV 1 or the DVR 2 via the Internet without a troublesome process such as installation of a separate viewer or a codec.

In addition, since the load of encoding the image can be greatly reduced and the traffic can be minimized, it is also possible to stream multiple images at the same time using limited hardware resources.

However, the 500-megapixel spherical CCTV 1 or the DVR 2, which is installed long ago and has a low utilization rate, is set to be open to the streaming video converter 100 according to the present invention. It is not a problem if it is assumed to be connected and used.

1, a streaming video converter 100 according to an embodiment of the present invention is connected to two or more CCTV 1 or DVR 2. The video converter 140 converts video A plurality of video output ports are required to stream the video received from each CCTV (1) or DVR (2).

To this end, the video output means 130 sets a virtual multiple monitor, and outputs the video input from each CCTV 1 or DVR 2 to the video output port of each set monitor.

Even though there is only one physical video output port, hardware virtualization technique is used to create virtual multiple monitors and output video to the video output port for each monitor.

The image actually displayed on the monitor connected to the physical video output port is the image outputted to the video output port of one of the monitors selected from among the virtual multiple monitors and the manager or the user can select one of the virtual multi- The image outputted to the monitor of the user can be viewed through the actual monitor.

As a result of outputting a plurality of image sources to a plurality of virtual monitors, the image converting unit 140 converts the images output to the respective virtual monitors into streaming images in real time.

Then, the video streaming means 150 generates the number of URLs, and allocates the url to each streaming video that has been converted in real time by the video converting means 140.

Then, each streaming image is hosted through the assigned url.

That is, the video streaming means 150 simultaneously transmits a plurality of streaming videos by the streaming method, and the client 10 connected by the url provided by the video streaming means 150 through the network transmits the streaming video through the corresponding url The video is provided by the streaming method and displayed on the screen.

3 is a view for explaining a process of separating an output image from a CCTV or a DVR when two or more images are included.

Meanwhile, the conventional DVR 2 is connected to four or more CCTVs 1 to record video from each CCTV 1 connected thereto. At this time, the video from each CCTV (1) It is common to arrange them on one side of the screen as shown in FIG.

Considering the deterioration of image quality due to real-time transmission of an image and the resolution of a streaming image, if the entire image including a plurality of images is transmitted by a streaming method as shown in FIG. 3, it is very difficult to identify the contents of each image .

3, when the output signal output to the video output unit 130 is divided into two or more images so as not to overlap with each other, Each image is separated from the signal and converted into a separate streaming image.

3 illustrates an image received from a DVR 2 recording four CCTV (1) video images. The image converting means 140 converts each CCTV video from four CCTV video images, .

To this end, the image transforming unit 140 first determines a pixel whose color does not change from the output signal output to the image output unit 130 according to the passage of time.

The space between the areas where each CCTV image is displayed or the space area for the user interface does not change during the playback of the video.

Accordingly, the image converting unit 140 determines pixels that do not change color.

Then, the region having the shape of a rectangle is set as one or more regions made up of the remaining pixels excluding the pixels whose color does not change as determined above.

That is, an area where an image is displayed is searched. At this time, the area where the image is displayed is divided into a region having a rectangular shape.

Since the border of the region where the image is displayed is often surrounded by the pixels of the same or similar color, the region where the image is displayed can be set using the color distribution of the pixels of the region where the color does not change.

Since CCTV (1) has almost no change in the image for a long time due to its characteristics, if the pixels of the same or similar color are distributed in a rectangular shape and the pixels of the internal region are largely different in color, It is possible to compensate the error of the determination due to the color change of the pixel.

The image converting unit 140 may convert the output signals corresponding to the respective rectangular areas into the streaming image in real time.

In the example of FIG. 3, an image received from a single DVR 2 may be divided into four separate streaming images.

On the other hand, the video streaming unit 150 divides each of the converted streaming videos into separate URLs.

Meanwhile, the streaming video converter 100 according to the present invention includes an image providing means 160 for generating an image file related to each image transmitted by the video streaming means 150 and providing the generated image file to the client 10 connected via the network, As shown in FIG.

The image providing means 160 generates an image file for each image transmitted by the image streaming means 150. [

4 is a diagram for explaining a process of generating an image for each image provided by the streaming method.

The image providing means 160 may generate an image file for each image by capturing each image provided by the image streaming means 150.

CCTV (1) It is possible to capture an image at an arbitrary point in time because it is possible to know which object is being photographed at an angle by capturing a screen at any point on the characteristic of the image.

However, if capturing an image in the case where it is difficult to secure a night view is difficult, it is difficult to determine which image the captured image is captured. Therefore, the captured image may be analyzed for a predetermined period of time, Alternatively, it is possible to capture an image at an arbitrary point in time during the day using the time information of the image.

The captured image may be stored in a known format such as jpg.

In addition to generating an image by capturing an image in this way, the image providing means 160 may convert the url provided with the image by the image streaming means 150 into a QR code and store it as an image file.

That is, it is possible to convert the url, which is text information, into a QR code by a known algorithm, and then store it in a known image file format such as jpg.

QR code, but a two-dimensional bar code should be interpreted as an equivalent QR code.

When the image file related to the image is generated as described above, the image providing means 160 stores any one of the identification information in the EXIF of each image file generated and the image provided by the image streaming means.

5 is a view for explaining a process of storing predetermined information in EXIF of an image generated for each image.

The Exchangeable Image File Format (EXIF) is a combination of the camera manufacturer, the camera model, the software, the date of the photo correction, the Exif version, Shoot Datetime, Image Size, Exposure Time, Exposure Program, Focal Length, F-Number, and the like of the pictures loaded on the web. , And whether to use the flash.

The EXIF is usually stored in the header of a TIFF or JPEG file. The image providing means 160 expands the use of the EXIF so that the streaming image converter 100 according to the present invention can store identification information indicating that the link is inserted, The identification information of the streaming video converter 100 according to the invention and the url to which the image related to the image is transmitted is stored in the EXIF.

The image providing means 160 provides the EXIF with an image file storing the url and the identification information to the client 10 connected via the network.

6 is a reference diagram for explaining the outline of the streaming video converter 100 according to the present invention.

6, a video from a plurality of CCTV 1 or DVR 2 is streamed using a streaming video converter 100 so that a user of the client 10 can simply input a URL So that the user can view the corresponding image.

In addition, as described above, by providing the image related to the image, the users of the client 10 can easily access the URL of the CCTV image transmitted from the provided image file through the EXIF information of the provided image file.

In addition, it is possible to easily share images of a specific CCTV 1 by exchanging received image files with each other.

In the above description, the expression "server" is used. However, in a distributed computing environment, it is common to divide a function or a load into a plurality of servers for processing. Therefore, a "server" does not necessarily refer to a single hardware component, And < / RTI >

In the above description, the network is referred to as a local area network (WAN), a wide area network (WAN), or an intranet, a virtual private network (VPN) Therefore, it should be construed as a broad concept covering wired and wireless communication methods known as WiBro, WiFi, and the like.

While the present invention has been described with reference to the accompanying drawings and embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. . Accordingly, the scope of the present invention should be determined only by the technical idea of the appended claims, and is not limited to the above embodiments.

The present invention can be applied to the field of video streaming technology.

1: CCTV
2: DVR
10: Client
100: Streaming Video Converter
110: video input means 120: video playback means
130: video output means 140: video conversion means
150: video streaming means 160: image providing means

Claims (7)

Video input means for receiving real-time video data from a CCTV or a DVR;
Video reproducing means for selecting a codec when the input real-time video data is required to reproduce the real-time video data and reproducing the real-time video data using the selected codec;
Video output means for outputting the reproduced real time video data to a video output port;
Image converting means for real-time converting an output signal outputted to the video output port by the video output means into a streaming image;
and a video streaming unit for providing the converted streaming video to the client connected by the generated url by a streaming method,
Wherein the video output means sets a virtual multi-monitor, outputs an image to a video output port of each set monitor,
Wherein the image streaming means generates a plurality of URLs, assigns url to each streaming image converted in real time by the image conversion means, and hosts each streaming image through the assigned url. delete The method according to claim 1,
Wherein the image converting means separates each image from the output signal and converts the output signal into a separate streaming image when two or more images are separately included in the output signal outputted to the image outputting means separately Features streaming video converter. The method of claim 3,
Wherein the image converting means decides a pixel whose color does not change according to the passage of time from the output signal outputted to the image outputting means,
A region having a rectangular shape is set as one or more regions made up of pixels other than the pixels for which the determined color does not change,
And converts the output signal corresponding to the set rectangular area into a streaming image in real time. Video input means for receiving real-time video data from a CCTV or a DVR;
Video reproducing means for selecting a codec when the input real-time video data is required to reproduce the real-time video data and reproducing the real-time video data using the selected codec;
Video output means for outputting the reproduced real time video data to a video output port;
Image converting means for real-time converting an output signal outputted to the video output port by the video output means into a streaming image;
a streaming unit for generating a URL and providing the converted streaming image by a streaming method to a client connected with the generated url;
The method includes generating an image file for each image provided by the image streaming means by using a predefined algorithm, storing predetermined identification information in an EXIF (Exchangeable Image File Format) header of each of the generated image files, And an image providing means for storing the URL of any one of the images provided by the client and providing the image file to a client connected via a network. 6. The method of claim 5,
Wherein the image providing means generates an image file for each image by capturing each image provided by the image streaming means. 6. The method of claim 5,
Wherein the image providing means generates an image file for each image by converting the url provided with each image by the image streaming means into a QR code and then storing the image into an image file.

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