| 摘要 |
A method and an apparatus for decoding/encoding a video signal are provided to code a video signal more efficiently by providing a method for managing the reference pictures used in inter-view estimation. A decoding apparatus includes a bit stream deciding unit(81), an inter-view picture group identification information obtaining unit(82), and a multi-view video decoding unit(83). If a bit stream is inputted, the bit stream deciding unit decides whether the inputted bit stream is a coded bit stream for a scalable video coding or a coded bit stream for multi-view video coding. This can be decided by flag information included in the bit stream. The inter-view picture group identification information obtaining unit is able to obtain inter-view picture group identification information if the inputted bit stream is the bit stream for a multi-view video coding as a result of the decision. The inter-view picture group identification information can be obtained from an extension area of a NAL header or a slice layer area. The multi-view video decoding unit 83 decodes a multi-view video according to the inter-view picture group identification information. According to an overall coding structure of a multi-view video sequence, inter-view reference information of an inter-view picture group differs from that of a non-inter-view picture group. So, it is able to use the inter-view picture group identification information in adding reference pictures for inter-view prediction to generate a reference picture list for example. And, it is also able to use the inter-view picture group identification information to manage the reference pictures for the inter-view prediction. Moreover, the inter-view picture group identification information is applicable to a hypothetical reference decoder. |
