Samsung Electronics Co., Ltd.

Manu Mathew

Kyo-hyuk Lee

Woo-jin Han

Sang-chang Cha

Eun-hee Rhim

A color space scalable video coding and decoding method and an apparatus for the same are disclosed that can adjust color components or color depth according to the performance of a decoder side. The color space scalable video coding method includes generating transform coefficients by removing the temporal redundancy and spatial redundancy of input video frames, quantizing the transform coefficients, generating a bit stream by entropy coding the quantized transform coefficients, and generating a color space scalable bit stream that includes the bit stream and position information of luminance data in the bit stream.

Color space scalable video coding and decoding method and apparatus for the same

A method of assigning a priority for controlling a bit rate of a bitstream having a plurality of quality layers is provided. The method includes composing first quality layers for a reference picture, composing second quality layers for a current picture that is encoded with reference to the reference picture, and assigning a priority each of the first and second quality layers, wherein a low priority is assigned to a quality layer having a small influence on a video quality reduction of the current picture when the quality layer is truncated.

Method of assigning priority for controlling bit rate of bitstream, method of controlling bit rate of bitstream, video decoding method, and apparatus using the same

A client for playing a video stream and a method thereof adaptively control the video play in accordance with variable communication environments and the size of the video stream to be transmitted. The client includes a demultiplexer for generating elementary stream (ES) packets by demultiplexing a video stream; a FIFO buffer for temporarily storing the ES packets; a play timing modification unit for reducing a gap of a play time caused by a burst error by modifying time stamps of the ES packets that exist in the FIFO buffer if it is judged that the burst error occurs; and a video decoder for generating an output video by decoding the ES packets of which the time stamps are modified. The client can relatively improve the quality of the video streaming in multimedia communications through a wireless or wire network.

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Suwon-si, South Korea

Manu Mathew