KR102045522B1 - Accelerator server, set-top box and cloud server for converting image - Google Patents

Abstract

The accelerator server for converting an image calculates a scale factor for the set-top box based on processing of a user interface requested from the set-top box to the cloud server for a preset period of time, and transmits the calculated scale factor to the cloud server. A scale factor calculating unit, a receiving unit receiving an image request message from the set top box, an image converting unit converting the original image based on the image request message, and a transmitting unit transmitting the converted image to the set top box, wherein the image request message includes: It is generated based on the command information received from the cloud server by the set-top box, and includes the corresponding height, width and URL of the original image after conversion of the original image, and the command information is processed by the cloud server for the user interface of the set-top box. On request and scale factor The second is generated, and the image conversion device may be configured based on the height, width, after which the conversion of the original image to convert the original image which is located on the URL of the original image.

Description

Accelerator Servers, Set-Top Boxes and Cloud Servers for Converting Images {ACCELERATOR SERVER, SET-TOP BOX AND CLOUD SERVER FOR CONVERTING IMAGE}

The present invention relates to an accelerator server, a set-top box and a cloud server for converting images.

Cloud computing technology refers to a technology that integrates and provides resources of computers in different physical locations into virtualization technology, unlike the existing computing environment, which depends on the independent hardware performance of each terminal.

An example of utilizing such cloud computing technology in IPTV (Internet Protocol Television) is VCS (Video Conference System) / ICS (transmitting a media stream in video / image form to a terminal and displaying it on the screen of the terminal using a decoder of the terminal). Internet Computing System) technology. In addition, there is a command-type virtualization technology that downloads a command including a resource of a user interface and implements it on the screen of the terminal.

Here, since VCS / ICS technology receives the original video and image from the cloud server in the terminal, only hardware-based video and image decoders and components for processing framebuffer objects and data packets are required. High performance of the terminal is required because the terminal directly decodes the resource of the image received by the command method and draws the decoded image.

Such a command-type virtualization technology may cause a problem of performance degradation in a situation in which more CPU and memory resources are required than the VCS / ICS technology.

Meanwhile, Korean Patent Publication No. 2010-0117709 discloses font data and a high resolution image corresponding to a maximum resolution of a display device, a screen resolution of a connected display device, and detects a screen resolution of a connected display device. Set the size of the menu frame buffer in the menu, load font data and high resolution images stored in the memory into the system memory, and load font data loaded into the system memory according to the screen resolution of the display device in response to a resizing command by a user operation. And a configuration in which the size of the high resolution image is adjusted and provided to the display device.

We want to calculate the scale factor for the original image conversion of the user interface requested by the set-top box. In addition, the scale factor is used to convert the original image into a size that can be accommodated in the set-top box and transmit it to the set-top box. However, the technical problem to be achieved by the present embodiment is not limited to the technical problems as described above, and other technical problems may exist.

As a technical means for achieving the above-described technical problem, the accelerator server for converting an image according to the first aspect of the present invention is based on the processing of the user interface requested from the set-top box to the cloud server for a predetermined period of time set-top box A scale factor calculator configured to calculate a scale factor for the S-factor, and transmit the calculated scale factor to a cloud server, a receiver to receive an image request message from the set-top box, and an original image based on the image request message. An image conversion unit for converting, and a transmission unit for transmitting the converted image to the set top box, wherein the image request message is generated based on command information received from the cloud server by the set top box, Corresponding height, width, and phase after conversion And a command URL of the original image, wherein the command information is generated by the cloud server based on a request for processing of the user interface of the set-top box and the scale factor, and the image converting unit is configured after conversion of the original image. To convert the original image located at the URL of the original image based on the height and the width.

 In addition, the set-top box for receiving the converted image in conjunction with the accelerator server according to the second aspect of the present invention, a request unit for requesting processing of the user interface to the cloud server, and receives command information corresponding to the request from the cloud server And a transmitter configured to transmit an image request message generated based on the command information to an accelerator server, wherein the receiver receives a converted image of the original image from the accelerator server based on the image request message, The image request message includes a corresponding height, width, and URL of the original image after conversion of the original image, and the command information is requested and scale factor for processing of the user interface of the set-top box by a constant cloud server. Is generated based on the A scale factor is calculated based on the processing of the user interface requested from the set top box to the cloud server for a preset period by the accelerator server, and the converted image is converted after the conversion of the original image by the accelerator server. The original image located at the URL of the original image may be converted based on the height and width.

In addition, the cloud server for processing the image through the accelerator server according to the third aspect of the present invention is a scale factor for the set-top box calculated based on the processing for the user interface requested from the set-top box for a predetermined period of time (Scale Factor) Image conversion unit for converting the size information of the original image corresponding to the requested user interface based on the scale factor when receiving a request for processing a user interface from the set-top box; And a transmission unit for generating command information including a corresponding height, width, and URL of the original image after conversion of the original image and the original image, and transmitting the generated command information to the set-top box, wherein the image request information generated based on the command information The accelerator stand from the set top box And the original image is converted by the accelerator server based on the image request information, and the converted image is located in the URL of the original image based on a corresponding height and width after the conversion of the original image. The original image can be converted.

The above-mentioned means for solving the problems are merely exemplary, and should not be construed to limit the present invention. In addition to the exemplary embodiments described above, there may be additional embodiments described in the drawings and detailed description of the invention.

According to any one of the problem solving means of the present invention described above, the original image of the user interface requested by the set-top box can be converted and provided to the set-top box according to the CPU specification or the capacity of the memory of the set-top box.

1 is a block diagram of an image conversion system according to an embodiment of the present invention.
FIG. 2 is a block diagram of the accelerator server shown in FIG. 1, in accordance with an embodiment of the present invention.
3 is a block diagram of the set top box shown in FIG. 1 in accordance with an embodiment of the present invention.
4 is a block diagram of the cloud server shown in FIG. 1, according to an embodiment of the invention.
5 is a flowchart illustrating a method for measuring call waiting information according to an embodiment of the present invention.
6 is a flowchart illustrating a method of converting an image using a scale factor according to an embodiment of the present invention.
7 is a flowchart illustrating a method of converting an image using a scale factor according to another exemplary embodiment of the present invention.
8 illustrates an exemplary graph of quality policy and call waiting information, in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. . In addition, when a part is said to "include" a certain component, which means that it may further include other components, except to exclude other components unless otherwise stated.

In the present specification, the term 'unit' includes a unit realized by hardware, a unit realized by software, and a unit realized by both. In addition, one unit may be realized using two or more pieces of hardware, and two or more units may be realized by one piece of hardware.

Some of the operations or functions described as being performed by a terminal or a device in the present specification may instead be performed in a server connected to the terminal or device. Similarly, some of the operations or functions described as being performed by the server may be performed by a terminal or a device connected to the server.

Hereinafter, with reference to the accompanying configuration diagram or processing flow chart, it will be described in detail for the practice of the present invention.

1 is a block diagram of an image conversion system according to an embodiment of the present invention.

Referring to FIG. 1, the image conversion system may include an accelerator server 100, a set top box 110, and a cloud server 120. However, since the image conversion system of FIG. 1 is only one embodiment of the present invention, the present invention is not limitedly interpreted through FIG. 1 and may be configured differently from FIG. 1 according to various embodiments of the present invention.

The set top box 110 may request the cloud server 120 to process a user interface. For example, the set top box 110 may request the cloud server 120 to process a home portal screen.

The set top box 110 may receive command information corresponding to a processing request of the user interface from the cloud server 120. Here, the command information is information for implementing the requested user interface, and may include a corresponding height, width, and URL of the original image after conversion of the original image for the user interface. For example, the command information may include a corresponding height and width after the conversion of the original image for the home portal and URL information where the original image of the home portal is located.

The set top box 110 may generate an image request message and request the accelerator server 100 based on the command information. Here, the image request message may include a corresponding height, width, URL of the original image, etc. after the conversion of the original image to the user interface.

The set top box 110 may receive the converted image of the original image from the accelerator server 100 based on the image request message, and output the converted image. Here, the converted image may be an image converted into size information calculated to meet the specifications of the set-top box 110.

The accelerator server 100 calculates and calculates a scale factor for the set-top box 110 based on the processing of the user interface requested from the set-top box 110 to the cloud server 120 for a preset period. Scale factor may be transmitted to the cloud server 120.

When the accelerator server 100 receives the image request message from the set-top box 110, after the conversion of the original image included in the image request message, the accelerator server 100 converts the original image located at the URL of the original image based on the corresponding height and width. In addition, the converted image may be transmitted to the set top box 110.

When the cloud server 120 receives the scale factor from the accelerator server 100 and receives a request for processing of the user interface from the set-top box 110, the cloud server 120 receives an original image corresponding to the requested user interface based on the scale factor. The size information of can be converted.

The cloud server 120 may generate command information including the corresponding height, width, and URL of the original image after conversion of the original image, and transmit the command information to the set top box 110.

In general, each component of the image conversion system of FIG. 1 is connected via a network 130. The network refers to a connection structure capable of exchanging information between respective nodes such as terminals and servers. Examples of such a network include Wi-Fi, Bluetooth, Internet, and LAN. Network (WLAN), Wireless Local Area Network (WLAN), Wide Area Network (WAN), Personal Area Network (PAN), 3G, 4G, 5G, LTE, and the like, but are not limited thereto.

Hereinafter, the operation of each component of the image conversion system of FIG. 1 will be described in more detail.

2 is a block diagram of the accelerator server 100 shown in FIG. 1, in accordance with an embodiment of the present invention.

Referring to FIG. 2, the accelerator server 100 includes a call waiting information measuring unit 200, a scale factor calculator 210, a receiver 220, an image converter 230, a transmitter 240, and a DB 250. ) May be included. However, the accelerator server 100 shown in FIG. 2 is only one implementation example of the present invention, and various modifications are possible based on the components shown in FIG. 2.

The call waiting information measuring unit 200 is based on the plurality of processing time information (Response Time) measured while the plurality of user interfaces requested from the set-top box 110 to the cloud server 120 are processed, respectively. Call latency information).

For example, the call waiting information measuring unit 200 may measure call waiting information of the set top box 110 by using processing time information required to configure a screen of a home portal or an application in the set top box 110. .

In detail, the call waiting information measuring unit 200 may transmit a triggering message to the set top box 110. Here, the triggering message may be a message for instructing the set top box 110 to measure processing time information of the user interface.

The call waiting information measuring unit 200 may receive, from the set top box 110, a plurality of pieces of processing time information processed by each of the plurality of user interfaces, and measure call waiting information based on the received plurality of pieces of processing time information. .

For example, the call waiting information measuring unit 200 configures a screen such as a home portal and an application in the set-top box 110 from the time when the home portal and the application are requested from the set-top box 110 to the cloud server 120. The call waiting information can be measured based on the processing time information up to the time required.

The call waiting information measuring unit 200 may transmit an untriggering message to the set top box 110 when measurement of the call waiting information is completed. Here, the untriggering message may be a message for stopping the measurement of processing time information by the set top box 110.

The scale factor calculator 210 may calculate a scale factor for the set-top box 110 based on processing of the user interface requested from the set-top box 110 to the cloud server 120 for a preset period. Can be.

The scale factor calculator 210 may calculate a scale factor for the set top box 110 based on the measured call waiting information.

The scale factor calculator 210 may determine a set value of the quality information for the set top box 110 according to the quality policy, and calculate a scale factor based on the determined set value of the quality information. In this case, the scale factor calculator 210 may match the determined quality information with the calculated scale factor.

The relationship between scale factor, quality information and call waiting information for the present invention can be found in FIG.

The scale factor calculator 210 may transmit the calculated scale factor to the cloud server 120.

The receiver 220 may receive an image request message from the set top box 110.

Here, the image request message is generated based on the command information received from the cloud server 120 by the set-top box 110, and may include a height, width, and URL of the original image after conversion of the original image. . In this case, the corresponding height and width after the conversion of the original image may be size information of an image that can be accommodated in the set-top box 110.

Here, the command information received from the cloud server 120 may be generated by the cloud server 120 based on a request for processing of the user interface of the set top box 110 and a scale factor. In addition, the command information may further include format information corresponding to the conversion of the original image.

The image converter 230 may convert the original image based on the image request message.

The image converter 230 may convert the original image located at the URL of the original image included in the image request message based on the height and width after the original image is converted.

For example, the image converter 230 may convert size information of a screen image such as a home portal and an application into size information that can be accommodated in the set-top box 110.

The image conversion unit 230 may convert the original image located at the URL of the original image based on the format information corresponding to the original image after conversion.

The transmitter 240 may transmit the converted image to the set top box 110.

The DB 250 stores data input and output between the components of the accelerator server 100, and stores data input and output between the components of the accelerator server 100 and external components of the accelerator server 100. do. An example of such a DB 250 includes a hard disk drive, a read only memory (ROM), a random access memory (RAM), a flash memory, a memory card, or the like existing inside or outside the accelerator server 100.

On the other hand, those skilled in the art, the call waiting information measuring unit 200, the scale factor calculator 210, the receiver 220, the image converter 230, the transmitter 240 and the DB 250 are each implemented separately or It will be fully understood that one or more of these may be implemented in an integrated manner.

3 is a block diagram of the set top box 110 shown in FIG. 1, in accordance with an embodiment of the present invention.

Referring to FIG. 3, the set top box 110 may include a receiver 300, a requester 310, a transmitter 320, a processing time measuring unit 330, and a memory 340. However, the set top box 110 shown in FIG. 3 is just one embodiment of the present invention, and various modifications are possible based on the components shown in FIG. 3.

The receiver 300 may receive a triggering message from the accelerator server 100. Here, the triggering message may be a message indicating to measure processing time information of the user interface.

The requester 310 may request the cloud server 120 to process a plurality of user interfaces. For example, the requester 310 may request the cloud server 120 to provide or execute a menu of an input home portal, an application, or the like according to a user's remote control operation.

The receiver 300 may receive a plurality of command information from the cloud server 120 in response to the processing request of the user interface. Here, the plurality of command information includes resource information for processing each user interface, and may be generated based on a scale factor of a sample by the cloud server 120. In this case, the scale factor of the sample may be, for example, information calculated based on a set value of quality information defined for each set-top box or information calculated based on average call waiting information for a plurality of set-top boxes. .

For example, the receiver 300 may receive command information including resource information for screen configuration of a home portal and an application.

The transmitter 320 may transmit a plurality of image request messages generated based on each of the received command information to the accelerator server 100.

For example, the transmitter 320 may transmit an image request message for requesting an image corresponding to a screen of a home portal or an application to the accelerator server 100.

When the processing time measuring unit 330 receives a plurality of images from the accelerator server 100, the processing time measuring unit 330 may process the plurality of user interfaces based on the plurality of command information and the plurality of received images. For example, the processing time measuring unit 330 may draw the home portal screen using command information and images including resource information for configuring the home portal screen.

After receiving the triggering message, the processing time measuring unit 330 may measure a plurality of processing time information while processing a plurality of user interfaces, and transmit the measured processing time information to the accelerator server 100. . In this case, the measured plurality of processing time information is used by the accelerator server 100 to measure call waiting information of the set top box 110, and the measured call waiting information calculates a scale factor for the set top box 110. It can be used to

For example, the processing time measuring unit 330 processes the time required for drawing the home portal screen from the set-top box 110 to the time required for processing the screen configuration of the home portal or application to the cloud server 120. Time information can be measured.

When the measurement for the call waiting information is completed, the receiver 300 may receive an untriggering message from the accelerator server 100.

The processing time measuring unit 330 may stop measuring processing time information based on the untriggering message.

Thereafter, the requester 310 may request the cloud server 120 to process the user interface.

The receiver 300 may receive command information corresponding to a processing request of a user interface from the cloud server 120. Here, the command information is generated based on the request for the processing of the user interface of the set-top box 110 and the scale factor by the cloud server 120, and the corresponding height, width, and URL of the original image after conversion of the original image. It may include. In addition, the command information may further include format information corresponding to the conversion of the original image.

Here, the scale factor may be calculated based on the processing of the plurality of user interfaces requested from the set-top box 110 to the cloud server 120 for the preset period by the accelerator server 100. For example, the scale factor may be calculated based on call waiting information of the set top box measured from processing time information for each of the plurality of user interfaces, or may be calculated based on a setting value of quality information determined according to a quality policy.

The transmitter 320 may transmit the image request message generated based on the command information to the accelerator server 100. Here, the image request message may include a corresponding height, width, and URL of the original image after conversion of the original image.

The receiver 300 may receive the converted image of the original image from the accelerator server 100 based on the image request message. Here, the converted image may be a conversion of the original image located in the URL of the original image based on the height, width corresponding to the original image after the conversion of the accelerator server 100.

The memory 340 stores data input and output between the components inside the set top box 110, and stores data input and output between the components outside the set top box 110 and the set top box 110. do. Examples of such a memory 340 include a hard disk drive, a read only memory (ROM), a random access memory (RAM), a flash memory, a memory card, or the like existing inside or outside the set top box 110.

On the other hand, those skilled in the art, the receiving unit 300, the requesting unit 310, the transmitting unit 320, the processing time measuring unit 330 and the memory 340 are each implemented separately, or one or more of them are integrated to be implemented I will fully understand that you can.

4 is a block diagram of the cloud server 120 shown in FIG. 1, in accordance with an embodiment of the present invention.

Referring to FIG. 4, the cloud server 120 may include a receiver 400, an image converter 410, a transmitter 420, and a DB 430. However, the cloud server 120 shown in FIG. 4 is only one implementation example of the present invention, and various modifications are possible based on the components shown in FIG. 4.

The receiver 400 may receive, from the accelerator server 100, a scale factor for the set-top box 110 calculated based on the processing for the user interface requested from the set-top box 110 for a preset period.

Here, the scale factor is, for example, the set-top box 110 measured from the respective processing time information of the plurality of user interfaces requested by the accelerator server 100 from the set-top box 110 to the cloud server 120 is processed. It may be calculated based on the call waiting information of or based on a set value of the quality information determined according to the quality policy. In this case, when the triggering message is transmitted from the accelerator server 100 to the set-top box 110, the plurality of processing time information may be measured, and the measurement may be stopped when the untriggering message is transmitted.

When the image conversion unit 410 receives a request for processing of the user interface from the set-top box 110, the size information of the original image corresponding to the requested user interface based on the scale factor received from the accelerator server 100 Can be converted. For example, the image converter 410 may convert the height and width information of the original image corresponding to the user interface into the height and width information of the image that can be accommodated in the set-top box 110 using the scale factor. .

The transmitter 420 may generate command information including the corresponding height, width, and URL of the original image after conversion of the original image, and transmit the command information to the set top box 110.

The DB 430 stores data input and output between each component inside the cloud server 120, and stores data input and output between components outside the cloud server 120 and the cloud server 120. do. An example of such a DB 430 includes a hard disk drive, a read only memory (ROM), a random access memory (RAM), a flash memory, a memory card, or the like existing inside or outside the cloud server 120.

Meanwhile, those skilled in the art will fully understand that each of the receiver 400, the image converter 410, the transmitter 420, and the DB 430 may be implemented separately, or one or more of them may be integrated.

5 is a flowchart illustrating a method for measuring call waiting information according to an embodiment of the present invention.

The method for measuring call waiting information according to the embodiment shown in FIG. 5 is processed in time series by the accelerator server 100, the set-top box 110, and the cloud server 120 according to the embodiment shown in FIGS. 1 to 4. Steps. Therefore, even if omitted below, the contents described with respect to the accelerator server 100, the set-top box 110, and the cloud server 120 of FIGS. 1 to 4 may measure call waiting information according to the embodiment illustrated in FIG. 5. The method may also be applied.

Referring to FIG. 5, in operation S501, the accelerator server 100 may transmit a triggering message to the set top box 110.

In operation S502, the accelerator server 100 may transmit a plurality of sample scale factors to the cloud server 120.

In operation S503, the set top box 110 may request the cloud server 120 to process a plurality of user interfaces.

In operation S504, when the cloud server 120 receives a request for processing of the user interface from the set-top box 110, the cloud server 120 transmits a request to the requested plurality of user interfaces based on the plurality of sample scale factors received from the accelerator server 100. Size information of each corresponding original image can be converted.

In operation S505, the cloud server 120 may generate a plurality of command information including corresponding height, width, and URL of the original image after the size information of each original image is converted.

In operation S506, the cloud server 120 may transmit a plurality of command information to the set top box 110.

In operation S507, the set top box 110 may generate a plurality of image request messages based on each of the plurality of command information received from the cloud server 120, and transmit the generated plurality of image request messages to the accelerator server 100. have.

In operation S508, the accelerator server 100 may transmit a plurality of images corresponding to the plurality of image request messages to the set top box 110.

In operation S509, the set top box 110 may process the plurality of user interfaces based on the plurality of command information and the plurality of received images.

In operation S510, the set top box 110 may measure a plurality of pieces of processing time information while the plurality of user interfaces are respectively processed.

In operation S511, the set top box 110 may transmit the measured plurality of processing time information to the accelerator server 100.

In operation S512, the accelerator server 100 may measure call waiting information of the set-top box 110 based on the plurality of processing time information received from the set-top box 110.

In step S513, the accelerator server 100 may transmit an untriggering message to the set top box 110.

In operation S514, when the set-top box 110 receives the untriggering message from the accelerator server 100, the set top box 110 may stop measuring processing time information.

In the above description, steps S501 to S514 may be further divided into additional steps or combined into fewer steps, according to an embodiment of the present invention. In addition, some steps may be omitted as necessary, and the order between the steps may be changed.

6 is a flowchart illustrating a method of converting an image using a scale factor according to an embodiment of the present invention.

The image conversion method according to the embodiment illustrated in FIG. 6 includes steps processed in time series by the accelerator server 100, the set-top box 110, and the cloud server 120 according to the embodiments illustrated in FIGS. 1 to 5. Include. Therefore, although omitted below, contents described with respect to the accelerator server 100, the set-top box 110, and the cloud server 120 of FIGS. 1 to 5 may also be applied to the image conversion method according to the embodiment shown in FIG. 6. Can be applied.

Referring to FIG. 6, in step S601, the accelerator server 100 may calculate a scale factor for the set-top box 110 based on call waiting information.

In operation S602, the accelerator server 100 may transmit the calculated scale factor to the cloud server 120.

In operation S603, the set top box 110 may request the cloud server 120 to process a user interface.

In operation S604, the cloud server 120 may convert size information of the original image corresponding to the requested user interface based on the scale factor received from the accelerator server 100.

In operation S605, the cloud server 120 may generate command information including a corresponding height, width, and URL of the original image after the size information of the original image is converted.

In operation S606, the cloud server 120 may transmit the generated command information to the set top box 110.

In operation S607, the set top box 110 may generate an image request message based on the command information received from the cloud server 120, and transmit the generated image request message to the accelerator server 100. Here, the image request message may include a corresponding height, width, and URL of the original image after conversion of the original image.

In operation S608, the accelerator server 100 may convert the original image located at the URL of the original image based on the corresponding height and width after the conversion of the original image included in the image request message received from the set-top box 110. .

In operation S609, the accelerator server 100 may transmit the converted image to the set top box 110.

In operation S610, the set top box 110 may output the converted image based on the command information and the converted image.

In the above description, steps S601 to S610 may be further divided into additional steps or combined into fewer steps, according to an embodiment of the present invention. In addition, some steps may be omitted as necessary, and the order between the steps may be changed.

7 is a flowchart illustrating a method of converting an image using a scale factor according to another exemplary embodiment of the present invention.

In the image conversion method according to the embodiment illustrated in FIG. 7, steps processed in time series by the accelerator server 100, the set-top box 110, and the cloud server 120 according to the exemplary embodiment illustrated in FIGS. 1 to 6 are performed. Include. Therefore, although omitted below, contents described with respect to the accelerator server 100, the set-top box 110, and the cloud server 120 of FIGS. 1 to 6 may also be applied to the image conversion method according to the embodiment shown in FIG. 7. Can be applied.

Referring to FIG. 7, in operation S701, the accelerator server 100 may determine a set value of quality information based on a quality policy.

In operation S702, the accelerator server 100 may calculate a scale factor for the set top box 110 based on the determined setting value of the quality information.

In operation S703, the accelerator server 100 may transmit the calculated scale factor to the cloud server 120.

In operation S704, the set top box 110 may request the cloud server 120 to process a user interface.

In operation S705, the cloud server 120 may convert size information of the original image corresponding to the requested user interface based on the scale factor received from the accelerator server 100.

In operation S706, the cloud server 120 may generate command information including the corresponding height, width, and URL of the original image after the size information of the original image is converted.

In operation S707, the cloud server 120 may transmit the generated command information to the set top box 110.

In operation S708, the set top box 110 may generate an image request message based on the command information received from the cloud server 120, and transmit the generated image request message to the accelerator server 100. Here, the image request message may include a corresponding height, width, and URL of the original image after conversion of the original image.

In operation S709, the accelerator server 100 may convert the original image located at the URL of the original image based on the corresponding height and width after the conversion of the original image included in the image request message received from the set-top box 110. .

In operation S710, the accelerator server 100 may transmit the converted image to the set top box 110.

In operation S711, the set top box 110 may output the converted image based on the command information and the converted image.

In the above description, steps S701 to S711 may be further divided into additional steps or combined into fewer steps, according to an embodiment of the present invention. In addition, some steps may be omitted as necessary, and the order between the steps may be changed.

8 illustrates an exemplary graph of quality policy and call waiting information, in accordance with an embodiment of the present invention.

Referring to FIG. 8, the scale factor 800 may be information for adjusting the size information of the original image of the user interface to suit the specifications of the set top box 110. For example, the scale factor ranges from 0 to 1, and as the scale factor approaches 1, the quality of the original image can be maintained.

The accelerator server 100 may calculate the scale factor according to the specification of the set-top box by using the graph 800 of the predetermined quality policy between the quality information and the scale factor.

For example, when the specification of the first set-top box is high specification, the accelerator server 100 corresponds to a scale factor corresponding to Q2 830 which is a set value of quality information as relatively high quality information through the graph 810 of the quality policy. S1 870 can be determined as the scale factor for the first set top box.

As another example, when the specification of the second set-top box is a low specification, the accelerator server 100 may use a scale factor S0 corresponding to Q0 850 which is a set value of quality information as relatively low quality information through the graph 810 of the quality policy. 860 can be determined as the scale factor for the second set top box.

Meanwhile, the accelerator server 100 measures call waiting information for the set-top box 110 to generate a call waiting information graph 820 between the call waiting information and the scale factor, and generates the pre-generated call waiting information graph 820. Through this, the scale factor according to the specification of the set top box can be calculated.

For example, when the measured call waiting information of the set-top box 110 is L1 840, the accelerator server 100 may scale through the call waiting information graph 820 corresponding to L1 840 which is call waiting information. Factor S2 880 may be determined as the scale factor for set top box 110.

An embodiment of the present invention may also be implemented in the form of a recording medium including instructions executable by a computer, such as a program module executed by the computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, computer readable media may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transmission mechanism, and includes any information delivery media.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. .

100: accelerator server
110: set top box
120: cloud server

Claims (17)

In the accelerator server for converting images,
A scale factor calculator configured to calculate a scale factor for the set-top box based on processing of a user interface requested from the set-top box to the cloud server for a preset period, and transmit the calculated scale factor to the cloud server ;
A receiver configured to receive an image request message from the set top box;
An image converting unit converting an original image based on the image request message;
Transmission unit for transmitting the converted image to the set-top box
Including,
The image request message is generated based on the command information received from the cloud server by the set top box, and includes a corresponding height, width, and URL of the original image after conversion of the original image,
The command information is generated by the cloud server based on the request for processing of the user interface of the set top box and the scale factor,
And the image conversion unit is configured to convert the original image located at the URL of the original image based on a corresponding height and width after the conversion of the original image.
The method of claim 1,
A call waiting information measuring unit configured to measure call waiting information of the set top box based on a plurality of processing time information measured while processing a plurality of user interfaces requested from the set top box to the cloud server;
More,
And the scale factor calculator is configured to calculate a scale factor for the set top box based on the call waiting information.
The method of claim 2,
The call waiting information measuring unit transmits a triggering message to the set top box,
Receiving the plurality of processing time information from the set top box,
And measure the call waiting information based on the received plurality of processing time information.
The method of claim 3, wherein
The call waiting information measuring unit, when the measurement of the call waiting information is completed, transmits an untriggering message to the set top box,
The untriggering message is configured to stop measuring the processing time information by the set top box.
The method of claim 1,
The scale factor calculator matches the scale factor with quality information,
And calculate the scale factor based on a set value of the quality information determined according to the quality policy.
The method of claim 1,
The command information further includes corresponding format information after the conversion of the original image,
And the image conversion unit is configured to convert the original image located at the URL of the original image further based on format information corresponding to the original image after conversion.
In the set-top box receiving the converted image in conjunction with the accelerator server,
A request unit for requesting processing of a user interface to a cloud server;
A receiver configured to receive command information corresponding to the request from the cloud server; And
Transmitter for transmitting the image request message generated based on the command information to the accelerator server
Including,
The receiving unit receives the converted image of the original image from the accelerator server based on the image request message,
The image request message includes a corresponding height, width and URL of the original image after conversion of the original image,
The command information is generated by a cloud server on the basis of a request for processing of the user interface of the set-top box and a scale factor,
The scale factor is calculated based on the processing for the user interface requested from the set top box to the cloud server for a preset period by the accelerator server,
The converted image is a set-top box, the original image located at the URL of the original image is converted by the accelerator server based on the height, width corresponding to after the conversion of the original image.
The method of claim 7, wherein
A processing time measuring unit which measures a plurality of processing time information while processing a plurality of user interfaces requested to the cloud server, and transmits the measured processing time information to the accelerator server.
More,
And the scale factor is configured to be calculated based on call waiting information of the set top box measured from the plurality of processing time information.
The method of claim 8,
The receiver receives a triggering message from the accelerator server,
The processing time measuring unit is configured to transmit the plurality of processing time information to the accelerator server, set-top box
The method of claim 9,
The receiver, when the measurement of the call waiting information is completed, receives an untriggering message from the accelerator server,
And the processing time measuring unit is configured to stop measuring the processing time information based on the untriggering message.
The method of claim 7, wherein
The scale factor for the set top box is calculated based on a set value of quality information determined according to a quality policy,
Wherein the quality information is configured to match the scale factor.
The method of claim 7, wherein
The command information further includes corresponding format information after the conversion of the original image,
The converted image is a set-top box, the original image located in the URL of the original image is further converted by the accelerator server based on the corresponding format information after the conversion of the original image.
In the cloud server processing the image through the accelerator server,
A receiving unit which receives a scale factor from the accelerator server for the set top box calculated based on the processing for the user interface requested from the set top box for a preset period of time;
An image converter for converting size information of an original image corresponding to the requested user interface based on the scale factor when receiving a request for processing of a user interface from the set top box;
The transmission unit for generating command information including the corresponding height, width and the URL of the original image after the conversion of the original image to the set-top box
Including,
Image request information generated based on the command information is transmitted from the set top box to the accelerator server,
The original image is converted by the accelerator server based on the image request information,
The converted image is a cloud server, wherein the original image located at the URL of the original image is converted based on a corresponding height and width after conversion of the original image.
The method of claim 13,
The scale factor is configured to be calculated based on call waiting information of the set top box measured from the respective processing time information processed by the accelerator server from the set top box to the cloud server. , Cloud server.
The method of claim 14,
The plurality of processing time information, when the triggering message is transmitted from the accelerator server to the set-top box, the measurement is started, the measurement is stopped when an untriggering message is sent, cloud server.
The method of claim 13,
The scale factor for the set top box is calculated based on a set value of quality information determined according to a quality policy,
The quality information is configured to match the scale factor.
The method of claim 13,
The command information further includes corresponding format information after the conversion of the original image,
The converted image is a cloud server, wherein the original image located in the URL of the original image is further converted by the accelerator server based on the corresponding format information after the conversion of the original image.

Images