Abstract:
PURPOSE: A three-dimensional image information transmission system and a method thereof are provided to transmit three-dimensional image information of small data quantity by transmitting three-dimensional image information by using difference information between a left eye texture image and a right eye texture image. CONSTITUTION: A difference information extracting unit(240) extracts difference information in comparison with a second synthesis texture image and a second original texture image. The second synthesis texture image is synthesized based on a first texture image and depth information. An image information transmitting unit(250) transmits three-dimensional image information including the first texture image, the depth information, and the difference information. The difference information is included in the second original texture image. The difference information is not included in the first texture image. [Reference numerals] (110) 3D image information transfer device; (210) Texture image filming unit; (220) Depth information generating unit; (230) Texture image synthesizing unit; (240) Difference information extracting unit; (250) Image information transmitting unit
Abstract:
PURPOSE: A channel rate predicting method which uses signal strength information is provided to reduce the loss of video quality by using an LDPC(Low Density Parity Check) code. CONSTITUTION: A server predicts video channel rate by using estimated channel capacity. The server extracts a scalable video by using the predicted video channel rate. The sever performs channel coding of the extracted scalable video. The server transmits the channel-coded video to a terminal. The server minimizes video quality distortion by applying differential rate according to the property of a video frame through an LDPC code.
Abstract:
PURPOSE: Coding rate control, an unequal error protection application method and a video transceiving device using the same are provided to apply unequal error protection according to the property of a frame by optimally adjusting video/channel coding rate through a channel capacity estimation value if the channel capacity estimated from a video receiving device is received. CONSTITUTION: A channel capacity estimation value fed back from a video receiving device is predicted as the channel capacity of the next channel section(312). Video coding rate and channel coding rate are adjusted within the predicted channel capacity(314). Video frames are encoded with the adjusted video coding rate, and video packet is generated(316). An unequal error is protected considering the length of the video packet and the kind of the video frame included in the video packet(318). The video packet which the unequal error is protected is encoded with the adjusted channel coding rate and bit stream is generated(320).
Abstract:
본 발명은 그래픽 도구를 이용한 디지털 아이템 생성 장치, 이를 이용한 미디어 파일 생성 장치, 및 그 기록 매체에 관한 것이다. 본 발명에 따른 디지털 아이템 생성 장치는 사용자에게 그래픽 인터페이스를 제공하여, 디지털 아이템의 그래픽 구조를 생성하는 그래픽 구동부; 그래픽 구동부와 연동하여 디지털 아이템의 그래픽 구조에 대응되는 트리 구조를 생성하는 트리 구동부; 및 그래픽 구동부 및 트리 구동부와 연동하여, 그래픽 구조와 트리 구조에 대응되는 텍스트 문서를 생성함으로써, 디지털 아이템을 생성하는 텍스트 구동부를 포함한다.