摘要:
The present invention relates to a recording device, a recording method, a playback device, a playback method, a recording medium, and a program that enable a recording medium, such as a BD, storing a stream of base image and a stream of extended image obtained by encoding video data of a plurality of viewpoints using a predetermined encoding method to be played in a device incompatible with playback of video data of a plurality of viewpoints. In an Access Unit storing Base view video, encoding of an MVC header is prohibited. As for a view component stored in an Access Unit without an MVC header, definition is made so that view_id thereof is recognized as 0. The present invention can be applied to a playback device compatible with the BD-ROM standard.
摘要:
A method of compressing image signals, to provide more efficient compression than a discrete cosine transform (DCT) while having the least amount of overhead information is provided. A partial exchange between a row and a column of a transform matrix is performed by applying several values to a parameter, which shows an extent of partial exchange between rows and columns of the transform matrix. When a value of the used angle parameter is stored or transmitted, an overhead increases. Processes generating a random sequence of the angle parameter, generating a compression coefficient matrix regarding each angle parameter of the generated random sequence, and calculating a compression rate are repeated to obtain an angle parameter with the highest compression rate. The angle parameter having the highest compression rate is not stored or transmitted, but a number in the random sequence of the corresponding angle parameter is obtained, and stored or transmitted.
摘要:
A video coding method, a video decoding method, a video coder, and a video decoder are disclosed herein. A video coding method includes: performing base-layer coding for the first view, and extracting prediction information of at least one layer by combining a locally decoded first view and a second view; performing enhancement-layer coding for prediction information of at least one layer respectively; and multiplexing the enhancement-layer codes and the base-layer codes of the first view to obtain encoded information. Through the embodiments of the present invention, the contents of the 3D video are encoded hierarchically, and various 3D display devices connected in different networks can display the 3D video hierarchically.