Abstract:
Disclosed are a signaling method for a stereoscopic video service and an apparatus using the method. An image decoding method comprises: a step of determining a field value based on a broadcast service type and a display mode in decoding a program level descriptor; and a step of determining an encoded stream type, whether an elementary stream is a reference stream, whether the elementary stream is a left-eye image or a right-eye image, additional image upsampling information and information on a subsampled line. Thus, efficiency of encoding/decoding an additional image for a stereoscopic video content may increase.
Abstract:
A broadcasting system for an interactive data service and a service method thereof are provided to enable a user to receive a service linked with broadcast contents by receiving a data service through a broadcast network. A decoder(50) receives and decodes broadcasting contents including user interaction contents. When the user interaction corresponding to the user interaction contents is generated, a node manager extracts return channel information for transmitting the user interaction result. According to the return channel information, a communication network connection unit(70) transmits the user interaction result. The return channel information comprises the address of a return channel server.