Samsung Electronics Co., Ltd.

Yong-gyoo Kim

Sung-Kee Kim

Seong-Taek Hwang

Do-young Joung

Jae-Hoon Lee

Tae-sung Park

Jae-Hoon Kwon

Gyu-Woong Lee

Yun-Je Oh

Chang-Hyun Lee

Sang-Ho Kim

Hoon Tae Kim

Do-wan Kim

Jae-sung Park

Byung-jik Kim

Han-Lim Lee

Jae-kyeong Lee

Jae-yun Jeong

Ji-wan Song

Tae-Sung Park

Gil-yoon Kim

Jin-bong Lee

Yong-Hyun Lim

Dai-woong Choi

Hyun-soo Choi

Do-In Choi

Gun-hee Lee

Si-Hai Wang

Sung-Jin Kim

Jae-woo Ko

Sung-dae Cho

Chang-Yeong Kim

Chang-Sup Shim

Soon-Seob Han

Su-Hyung Kim

Do-Wan Kim

Kwan-Soo Lee

Soon-yong Jeong

Gil-Yoon Kim

Soon-Yong Jeong

Jae-Yun Jeong

Dae-Eun Choi

Ji-hwan Choe

Sung-wook Youn

Gun-Hee Lee

Dai-Woong Choi

Jae-Kyeong Lee

Provided is a display device including: left and right displays that are spaced apart from each other; left and right lens groups respectively located at the rear of the left display and the rear of the right display; left and right display housings configured to surround the left and right displays and the left and right lens groups; a main frame provided between the left and right display housings; a connection structure capable of adjusting an angle between the main frame and a connector electrically connected to an external electronic device; and electronic components provided inside the main frame.

Display device and method for providing VR image

A method of processing an image by a device obtaining one or more images including captured images of objects in a target space, generating metadata including information about mapping between the one or more images and a three-dimensional (3D) mesh model used to generate a virtual reality (VR) image of the target space, and transmitting the one or more images and the metadata to a terminal.

Method, apparatus, and recording medium for processing image

Provided is a method of processing an image, the method including: obtaining rotation information with respect to each of a plurality of regions included in a 360-degree image; determining representative rotation information indicating movement of a capturing device, the movement occurring when capturing the 360-degree image, based on the rotation information of each of the plurality of regions; and correcting distortion of the 360-degree image based on the determined representative rotation information.

Method and apparatus for processing image

A method of processing an image in a device, and the device thereof are provided. The method includes determining a distortion correction ratio of each of a plurality of vertices included in a source image, based on information about a lens through which the source image is projected, determining corrected location information of pixels located between the plurality of vertices, based on the distortion correction ratio of each of the plurality of vertices and interpolation ratios of the pixels, and rendering a distortion-corrected image including pixels determined as a result of performing interpolation on the plurality of vertices based on the corrected location information.

Method, device, and recording medium for processing image

A user terminal apparatus is provided. The user terminal apparatus includes a camera unit configured to photograph an object, a controller configured to detect an object image from an image of the object photographed by the camera unit, generate image metadata used to change a feature part of the object image, and generate an image file by matching the object image with the image metadata, a storage configured to store the image file, and a display configured to, in response to selecting the image file, display the object image in which the feature part is changed based on the image metadata.

User terminal device for displaying an object image in which a feature part changes based on image metadata and the control method thereof

A storage file format for replaying an adaptively streamed multimedia stream, a client apparatus using the storage file format, and a method of storing a multimedia stream in the client apparatus are provided. According to the storage file format, meta-information for playing fragments and fragment access meta-information for replaying fragments are added to fragments.

Storage file format for multimedia streaming file, and storage method and client apparatus using the same

An audio and video synchronization apparatus and method in a wireless communication network are provided. The audio and video synchronization apparatus includes a receiver that receives audio frames and video frames, a playback buffer that sequentially buffers the audio frames, a detector that determines whether the audio frames are synchronized with the video frames and adjusts a playback time of the video frames based on a playback time of the audio frames if it is determined the audio frames are not synchronized with the video frames.

Audio and video synchronization apparatus and method in wireless communication network

Provided are a multimedia data reproducing method and an apparatus for controlling a multimedia data reproducing speed based on a multimedia data packet receiving speed. The method including controlling a reproducing speed of the multimedia data based on a first time difference between times at which a plurality of packets including the multimedia data are respectively received and a second time difference between times to respectively reproduce the multimedia data corresponding to the plurality of packets; and reproducing the multimedia data at the controlled reproducing speed.

Method and apparatus for reproducing multimedia data by controlling reproducing speed

A method for variably controlling a bit rate of video data through end-to-end channel status sensing in a Wireless Broadband (WiBro) network is provided. The method includes classifying wireless channel statuses of a transmission side and a reception side into normal and abnormal statuses during video data transmission; variably controlling and determining an encoding bit rate of a transmission side's encoder according to the classification result; and comparing the determined encoding bit rate with a Down Link Modulation & Coding Selection Level (DL MCS Level) which is a parameter of the reception side, so as to vary a final encoding bit rate of the transmission side.

Method for variably controlling bit rate of video data through end-to-end channel status sensing in a WiBro network

Disclosed are a method of transmitting/receiving streaming data, to which a bit rate suitable for a mobile communication terminal is applied, in a communication system including a server and the mobile communication terminal, and a communication system therefor. The communication system include the server for converting multimedia data into the streaming data, and transmitting the streaming data to the mobile communication terminal; and the mobile communication terminal for, on receiving the streaming data from the server, collecting streaming parameters for use to determine the bit rate, and newly determining the bit rate.

Method of transmitting/receiving streaming data in communication system including server and mobile communication terminal, and communication system therefor

A method for compressing an extension field to be selectively included in a Real-time Transport Protocol (RTP) header is provided. It is determined whether an RTP header extension field is included in the RTP header. Information indicating a determination result is recorded. Profile information of the RTP header extension field is recorded. Total length information of the RTP header extension field is recorded. Information indicating whether changed data exists is recorded using a header extension information map.

Method for compressing a real-time transport protocol header extension field

A method for performing an encrypted voice call between a first terminal and a second terminal supporting a Voice over Internet Protocol (VoIP)-based voice call. In the method, the first and second terminals generate and store a bio key using biographical (bio) information of a user in advance before performing a voice call, the first terminal sends a request for a voice call to the second terminal and establishing a session, the first and second terminals exchange and store a bio key stored in each terminal, and the first and second terminals generate a session shared key using the exchanged bio key and starting a Secure Real-time Transport Protocol (SRTP) session, and a restored bio key by acquiring bio information from received data. User authentication is then performed by comparing the bio key with the restored bio key.

Method and apparatus for performing VoIP-based communication using bio keys

Disclosed is a method for controlling bit rates in consideration of wireless channel environment by an apparatus that transmits and receives moving picture encoding data via a wireless network. The apparatus for transmitting/receiving data through a wireless communication network connected to the apparatus including a channel state analyzing unit for analyzing a wireless channel environment, an encoding controller for generating control information containing information about a quantization parameter, skip or non-skip of frames indication, frame type indication, and use or non-use of an Error Resilient Tool (ERT) indication, in consideration of an analyzation result received from the channel state analyzing unit, a moving picture encoding unit for encoding incoming moving picture data, based on the control information received from the encoding controller; and a data transmitting/receiving unit for transferring the encoded moving picture data through the wireless channel to an exterior.

Method for controlling moving picture encoding using channel information of wireless networks

A cross-layer optimization method for controlling a bit rate of a video coder/decoder (codec) in video data transmission for wireless devices such as a wireless broadband (WiBro) system terminal that adapts to changing transmission/reception characteristics and usage. The method typically includes checking, by a sender, radio channel state information of a sender side and a receiver side; determining, by the sender, a transmission bit rate of a video codec by using the radio channel state information of the sender side; and adjusting, by the sender, the transmission bit rate of the video codec by using the radio channel state information of the receiver side when a communication network used by a receiver typically based on the type of a communication network being used by the sender.

Cross-layer optimization method for controlling bit rate of video codec in transmission of video data in WiBro system

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Seoul, South Korea

Yong-gyoo Kim