Abstract: A video transmission control method for adaptive data transmission includes predicting a network state through machine learning using information related to video transmission as a feature in a real-time video streaming environment; and determining an option for controlling video transmission on the basis of the predicted network state.

Abstract: An image providing method includes configuring a region of interest in an original image; generating a high-quality image and a low-quality image by using the original image; reconstructing the region of interest and a remaining region other than the region of interest by using the high-quality image and the low-quality image; and transmitting the reconstructed region of interest and the reconstructed remaining region via a single stream.

Abstract: A method for playing back streaming content according to an embodiment may include a step in which a streaming player client sets an initial bitrate for a player module playing back streaming content; a step in which the streaming player client delivers, from the player module to a streaming server, a manifest file request for the streaming content; a step in which a local proxy server edits the manifest file delivered from the streaming server, the manifest file being edited on the basis of the set initial bitrate; and a step in which the local proxy server delivers the edited manifest file to the player module through the streaming player client.

Abstract: A content playing method includes obtaining a first media playlist for video on demand (VOD)-type first content via a server in accordance with a request from a player; changing the obtained first media playlist from VOD-type to live-type; providing the changed first media playlist to the player; obtaining a second media playlist for second content via the server, before the completion of the playing of the first content using the changed first media playlist in the player; and generating a third media playlist by connecting the changed first media playlist and the second media playlist.

Abstract: A method, a system, and a computer-readable recording medium implement a fast-switching mode between channels in a multi-live transmission environment. A composite image in which images of multiple channels are synthesized into one image in a live transmission environment is received as one stream to configure a multi-view composed of the images of the multi-channels and, as an image of a specific channel is selected in the multi-view, the original image of the specific channel is received and the multi-view may be switched to a full-view of the image of the specific channel.

Abstract: A method for playing back streaming content according to an embodiment may include a step in which a streaming player client sets an initial bitrate for a player module playing back streaming content; a step in which the streaming player client delivers, from the player module to a streaming server, a manifest file request for the streaming content; a step in which a local proxy server edits the manifest file delivered from the streaming server, the manifest file being edited on the basis of the set initial bitrate; and a step in which the local proxy server delivers the edited manifest file to the player module through the streaming player client.

Abstract: A method for playing streaming content includes requesting a playlist from a streaming server for providing a streaming service; receiving, in response to the request, a streaming fragment template provided by the streaming server; separating the playlist, a manifest file, and track information included in the streaming fragment template; and processing the play of the streaming content requested from a player module by using at least one of the playlist, the manifest file, and the track information.

Abstract: A method for implementing a seamless switching mode between channels in a multi-stream live transmission environment includes receiving in a single stream, a composite image in which images of multiple channels are synthesized into a single image, composing a view mode having a layout including the images of the multiple channels using the composite image, and changing a layout of the view mode using the composite image.

Abstract: Methods and systems for providing multi-track video content includes, receiving a user request for multi-track video, the multi-track video including a plurality of videos, each of the plurality of videos corresponding to a track, each of the plurality of videos being divided into time-based video segments; requesting a first video of the plurality of videos, the first video corresponding to a first track of the multi-track video; receiving first video segments corresponding to the first video; sequentially transferring the first video segments to a player for displaying the sequentially transferred first video segments; receiving second video segments of a second video of the plurality of videos instead of receiving the first video segments, the second video segments corresponding to a second track of the multi-track video; and sequentially transferring the second video segments to the player for displaying the sequentially transferred second video segments.

Abstract: A video transmission control method for adaptive data transmission includes predicting a network state through machine learning using information related to video transmission as a feature in a real-time video streaming environment; and determining an option for controlling video transmission on the basis of the predicted network state.

Abstract: A system includes at least one processor having a learning part for learning a deep neural network (DNN)-based style transfer model by using an image of a specific style to be learned, the style transfer model being a DNN model having an architecture in which the number of deep layers is reduced through transfer learning using a previously learned result.

Abstract: Provided is a method and system for measuring a bandwidth of a network based on a buffer and adaptively transmitting data in a real-time live environment. The method includes verifying a duration of data storage in a buffer configured to manage a data packet in a real-time live environment; and measuring a bandwidth of a network based on the duration of data storage in the buffer and adaptively controlling a data transmission rate based on the bandwidth.

Abstract: Provided are a streaming apparatus, a streaming method, and a streaming service system using the streaming apparatus, wherein the streaming apparatus includes: a scheduler configured to generate a modified metafile by modifying a reproduction list file of a metafile; and a server socket configured to transmit the modified metafile when a metafile transmit request is received from a player by operating as a server with respect to the player. Accordingly, delay times of players are substantially the same.

Abstract: In at least one example embodiment, a content reproducing apparatus includes a display, a memory configured to store at least one program and a processor. The processor is configured to reproduce first moving image content of a plurality of moving image content selected by a user, on a first region of a screen of the display, according to a user input, display a plurality of thumbnail images corresponding to the plurality of moving image content, on a second region of the screen, buffer a second moving image content corresponding to one of the plurality of thumbnail images, the first moving image content being continuously reproduced while the second moving image content is being buffered, and reproduce the second moving image content instead of the first moving image content when the buffering of the second moving image content is completed.

Abstract: Provided is a method and system for measuring a bandwidth of a network based on a buffer and adaptively transmitting data in a real-time live environment. The method includes verifying a duration of data storage in a buffer configured to manage a data packet in a real-time live environment; and measuring a bandwidth of a network based on the duration of data storage in the buffer and adaptively controlling a data transmission rate based on the bandwidth.

Abstract: The present invention relates to an adaptive real-time transcoding method and a streaming server therefor to improve service quality by minimizing the disconnection of images in an environment, such as a mobile device, through adaptively changing a set value of a transcoding operation on a media streaming service to match a network environment. The adaptive real-time transcoding method of the present invention is a real-time transcoding method for sequentially transmitting a media data segment, divided and transcoded, in a streaming server to the client side over a network, the method comprising the steps of: determining the fill level of a client-side playback buffer; determining, on the basis of the fill level of the playback buffer, the image quality of media data segments that are not transmitted to the client side; and transcoding the non-transmitted media data segments according to the determined image quality.

Abstract: Provided are a streaming apparatus, a streaming method, and a streaming service system using the streaming apparatus, wherein the streaming apparatus includes: a scheduler configured to generate a modified metafile by modifying a reproduction list file of a metafile; and a server socket configured to transmit the modified metafile when a metafile transmit request is received from a player by operating as a server with respect to the player. Accordingly, delay times of players are substantially the same.

Abstract: The present invention relates to an adaptive real-time transcoding method and a streaming server therefor to improve service quality by minimizing the disconnection of images in an environment, such as a mobile device, through adaptively changing a set value of a transcoding operation on a media streaming service to match a network environment. The adaptive real-time transcoding method of the present invention is a real-time transcoding method for sequentially transmitting a media data segment, divided and transcoded, in a streaming server to the client side over a network, the method comprising the steps of: determining the fill level of a client-side playback buffer; determining, on the basis of the fill level of the playback buffer, the image quality of media data segments that are not transmitted to the client side; and transcoding the non-transmitted media data segments according to the determined image quality.

Abstract: Methods and systems for providing multi-track video content includes, receiving a user request for multi-track video, the multi-track video including a plurality of videos, each of the plurality of videos corresponding to a track, each of the plurality of videos being divided into time-based video segments; requesting a first video of the plurality of videos, the first video corresponding to a first track of the multi-track video; receiving first video segments corresponding to the first video; sequentially transferring the first video segments to a player for displaying the sequentially transferred first video segments; receiving second video segments of a second video of the plurality of videos instead of receiving the first video segments, the second video segments corresponding to a second track of the multi-track video; and sequentially transferring the second video segments to the player for displaying the sequentially transferred second video segments.

Abstract: In at least one example embodiment, a content reproducing apparatus includes a display, a memory configured to store at least one program and a processor. The processor is configured to reproduce first moving image content of a plurality of moving image content selected by a user, on a first region of a screen of the display, according to a user input, display a plurality of thumbnail images corresponding to the plurality of moving image content, on a second region of the screen, buffer a second moving image content corresponding to one of the plurality of thumbnail images, the first moving image content being continuously reproduced while the second moving image content is being buffered, and reproduce the second moving image content instead of the first moving image content when the buffering of the second moving image content is completed.