| 摘要 |
In order that when image data corresponding to a super high resolution service is transmitted without being subjected to scalable coding, in a receiver which does not support the super high resolution service, image data with a resolution suitable to the display capability thereof is easily acquired, a container of a predetermined format having a video stream including coded image data is transmitted. Auxiliary information for downscaling the spatial and/or temporal resolution of the image data is inserted in the video stream. For example, the auxiliary information is information indicating the accuracy limitation of a motion vector included in the coded image data. Alternatively, for example, the auxiliary information is information for identifying a picture to be selected when the temporal resolution is downscaled at a predetermined rate. |
