Abstract: Provided is dynamically converting a video being displayed on a user device according to changes in a holding direction and a display direction of the user device. The user device may include a processor: generate a request message for requesting a predetermined video to a contents server and transmit the request message to the contents server through the communication circuit, receive the requested video from the contents server in response to the request message through the communication circuit, detect a target object from each image frame of the received video and define a region of interest based on the detected target object; determine whether error occurs in detecting the target object at each image frame and correct the region of interest when error occurs; defining a crop region based on the corrected region of interest; and converting the received video to a second video based on the crop region.

Abstract: Provided is creating an augmented reality video using a set-top box. The set-top box may include a communication circuit and a processor. The communication circuit may be configured to receive a first video stream including a target object image in real time from a server and to receive a second video stream captured by a user device from the user device. The processor may be configured to: extract the target object image from each frame of the first video stream using WebGL, correct a color of a boundary line of the target object image between the target object and the background, and composite the extracted target object image into an each frame of the second video stream.

Abstract: An object extraction device for extracting an object from a video includes a tracking unit that tracks at least one object included in the video; a crop area setting unit that sets an area to be cropped in any one frame of the video based on coordinate information of the tracked object; a crop area movement determination unit that determines whether or not to move the crop area based on a location relation between the coordinate information of the tracked object and the crop area; and an extraction unit that extracts, from the video, a partial video corresponding to the crop area that is moved or not according to a result of the determination.

Abstract: An object extraction device for extracting an object from a video includes a tracking unit that tracks at least one object included in the video; a crop area setting unit that sets an area to be cropped in any one frame of the video based on coordinate information of the tracked object; a crop area movement determination unit that determines whether or not to move the crop area based on a location relation between the coordinate information of the tracked object and the crop area; and an extraction unit that extracts, from the video, a partial video corresponding to the crop area that is moved or not according to a result of the determination.

Abstract: Provided is creating an augmented reality video using a set-top box. The set-top box may include a communication circuit and a processor. The communication circuit may be configured to receive a first video stream including a target object image in real time from a server and to receive a second video stream captured by a user device from the user device. The processor may be configured to: extract the target object image from each frame of the first video stream using WebGL, correct a color of a boundary line of the target object image between the target object and the background, and composite the extracted target object image into an each frame of the second video stream.

Abstract: Provided is an apparatus may be provided for transmitting a moving image including an alpha channel. The apparatus may include an object region extractor configured to extract an object region from the moving image, a color frame generator configured to generate a color frame corresponding to the extracted object region, an alpha channel frame generator configured to generate an alpha channel frame corresponding to the object region based on the alpha channel included in the moving image, a synthesizer configured to generate a synthesized frame by synthesizing the color frame and the alpha channel frame; an encoder configured to encode the synthesized frame; and a transmitter configured to transmit the encoded synthesized frame to a reproducing device.

Abstract: The present disclosure is related to managing heterogeneous M2M devices in a machine to machine (M2M) area network. Particularly, the present disclosure relates to supporting heterogeneous M2M devices (i.e., M2M devices not being supported in an M2M gateway) by employing a variety of network interfaces of other M2M devices in an M2M area network.

Abstract: Provided is an apparatus may be provided for transmitting a moving image including an alpha channel. The apparatus may include an object region extractor configured to extract an object region from the moving image, a color frame generator configured to generate a color frame corresponding to the extracted object region, an alpha channel frame generator configured to generate an alpha channel frame corresponding to the object region based on the alpha channel included in the moving image, a synthesizer configured to generate a synthesized frame by synthesizing the color frame and the alpha channel frame; an encoder configured to encode the synthesized frame; and a transmitter configured to transmit the encoded synthesized frame to a reproducing device.

Abstract: The disclosure is related to a method of providing a search service by a service server using a plurality of wearable computing devices registered at the service server for the search service. The method may include selecting wearable computing devices located within a predetermined distance from a target search location among the registered wearable computing devices, requesting the selected wearable computing devices to collect information on a target search object through a communication network, receiving the requested information from the selected wearable computing devices through the communication network, and providing the received information to user equipment that requests searching information on the target search location and the target search object.

Abstract: The present disclosure is related to managing heterogeneous M2M devices in a machine to machine (M2M) area network. Particularly, the present disclosure relates to supporting heterogeneous M2M devices (i.e., M2M devices not being supported in an M2M gateway) by employing a variety of network interfaces of other M2M devices in an M2M area network.