Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

Abstract: An audience selection type augmented broadcasting service providing apparatus and method is provided. The audience selection type augmented broadcasting service providing apparatus may include an augmented broadcast producing server to process a production process of augmented contents to provide the augmented broadcasting service, for broadcast contents, a broadcasting server to multiplex and transmit the broadcast contents and metadata for the augmented broadcasting service, and an augmented content receiving terminal to process the augmented contents based on the metadata for the augmented broadcasting service, while playing the broadcast contents.

Abstract: An audience selection type augmented broadcasting service providing apparatus and method is provided. The audience selection type augmented broadcasting service providing apparatus may include an augmented broadcast producing server to process a production process of augmented contents to provide the augmented broadcasting service, for broadcast contents, a broadcasting server to multiplex and transmit the broadcast contents and metadata for the augmented broadcasting service, and an augmented content receiving terminal to process the augmented contents based on the metadata for the augmented broadcasting service, while playing the broadcast contents.

Abstract: Provided is an apparatus and method for providing metadata in advance in order to gain a time required for a receiving terminal to receive augmented content corresponding to the metadata, based on the metadata received over a communication network in a bidirectional digital broadcast. The apparatus may provide a service before a predetermined time for a channel bound service that provides augmented content associated with a broadcast program, or a time-restraint service, such as a quiz program, for which an access to a website may required by a predetermined time. Also, the apparatus may provide metadata of a subsequent program in advance, before a predetermined time when transmitting the broadcast program, whereby a receiving terminal may receive associated information in advance, and a viewer may utilize a website or an augmented content service of a corresponding program, simultaneously with viewing the corresponding program.