Transmission device, transmitting method, reception device, and receiving method
AssigneeSaturn Licensing LLC
InventorIkuo Tsukagoshi
Life of this patent
Estimating the term…
Abstract
In the case where image data of a super-high definition service is transmitted without scalable coding, image data suitable to own display capability in a receiver not supporting the super-high definition service can be easily obtained. A container in a predetermined format having a video stream including encoded image data is transmitted. Auxiliary information for downscaling a spatial and/or temporal resolution of the image data is inserted into the video stream. For example, the auxiliary information indicates a limit of accuracy for a motion vector included in the encoded image data. Further, for example, the auxiliary information identifies a picture to be selected at the time of downscaling the temporal resolution at a predetermined ratio.
Claims24
A reception device, comprising:
- a receiver configured to receive a video stream and resolution information, the video stream including encoded image data and auxiliary information for downscaling a spatial resolution and/or a temporal resolution of the encoded image data, and the resolution information indicating whether the video stream is provided with support for a decoder that is not configured to support the spatial resolution or the temporal resolution of the encoded image data;
- and
- processing circuitry configured to, in a case that the resolution information indicates that the video stream is provided with the support for the decoder,
- apply downscaling processing of the spatial resolution and/or the temporal resolution to the encoded image data based on the auxiliary information, and
- obtain display image data for display based on the downscaling processing.
A receiving method, comprising:
- receiving a video stream and resolution information, the video stream including encoded image data and auxiliary information for downscaling a spatial resolution and/or a temporal resolution of the encoded image data, and the resolution information indicating whether the video stream is provided with support for a decoder that is not configured to support the spatial resolution or the temporal resolution of the encoded image data;
- and
- in a case that the resolution information indicates that the video stream is provided with the support for the decoder,
- applying downscaling processing of the spatial resolution and/or the temporal resolution to the encoded image data based on the auxiliary information, and
- obtaining display image data for display based on the downscaling processing.
A transmission device, comprising:
- processing circuitry configured to generate a container that includes a video stream and resolution information, the video stream including encoded image data and auxiliary information for downscaling a spatial resolution and/or a temporal resolution of the encoded image data, and the resolution information indicating whether the video stream is provided with support for a decoder that is not configured to support the spatial resolution or the temporal resolution of the encoded image data;
- and
- a transmitter configured to transmit the container.
A transmitting method, comprising:
- generating a container that includes a video stream and resolution information, the video stream including encoded image data and auxiliary information for downscaling a spatial resolution and/or a temporal resolution of the encoded image data, and the resolution information indicating whether the video stream is provided with support for a decoder that is not configured to support the spatial resolution or the temporal resolution of the encoded image data;
- and
- transmitting the container.
A transmission device, comprising:
- processing circuitry configured to generate a container that includes a video stream and resolution information at a layer of the container, the video stream including encoded image data, and the resolution information indicating whether a super-high definition service provided by the video stream is identifiable on per program basis and indicating whether the video stream is provided with support for a decoder that is not configured to support a spatial resolution or a temporal resolution of the encoded image data;
- and
- a transmitter configured to transmit the container.
Dependencies are inferred from the claim text.