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US 10,432,957 B2Granted
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.
Claims19
A transmission device comprising:
- circuitry configured to
- generate a container in a format including identifying information and a video stream separately provided in the container, the video stream including encoded image data;
- insert, into the video stream, auxiliary information for downscaling a spatial and/or temporal resolution of the image data;
- set the identifying information included in the container to indicate that the video stream includes the auxiliary information for a decoder that does not support the spatial and/or temporal resolution of the image data, and
- transmit the container, wherein
- downscaling processing of the spatial and/or temporal resolution of the image data is applied, by a reception device which receives the container having the video stream and the identifying information and extracts the auxiliary information inserted into the video stream, to the image data according to the extracted auxiliary information for downscaling the spatial and/or temporal resolution of the image data to generate display image data having a desired resolution.
3 more elements
A transmitting method comprising:
- generating a container in a format including identifying information and a video stream separately provided in the container, the video stream including encoded image data;
- inserting, by circuitry of a transmission device into the video stream, auxiliary information for downscaling a spatial and/or temporal resolution of the image data;
- setting the identifying information included in the container to indicate that the video stream includes the auxiliary information for a decoder that does not support the spatial and/or temporal resolution of the image data;
- and
- transmitting the container, wherein
- downscaling processing of the spatial and/or temporal resolution of the image data is applied, by a reception device which receives the container having the video stream and the identifying information and extracts the auxiliary information inserted into the video stream, to the image data according to the extracted auxiliary information for downscaling the spatial and/or temporal resolution of the image data to generate display image data having a desired resolution.
3 more elements
A transmission device comprising:
- circuitry configured to
- generate a container in a format including a descriptor and a video stream separately provided in the container, the video stream including encoded image data, and the descriptor includes identifying information and resolution information indicating that the video stream corresponds to a super-high definition service;
- insert, into the video stream, auxiliary information for downscaling a spatial and/or temporal resolution of the image data;
- set the identifying information included in the container to indicate that the video stream includes the auxiliary information for a decoder that does not support the spatial and/or temporal resolution of the image data;
- and
- transmit the container, wherein
- downscaling processing of the spatial and/or temporal resolution of the image data is applied, by a reception device which receives the container having the video stream and the descriptor and extracts the auxiliary information inserted into the video stream, to the image data according to the extracted auxiliary information for downscaling the spatial and/or temporal resolution of the image data to generate display image data having a desired resolution.
4 more elements
A transmitting method comprising:
- generating a container in a format including a descriptor and a video stream separately provided in the container, the video stream including encoded image data, and the descriptor includes identifying information and resolution information indicating that the video stream corresponds to a super-high definition service;
- inserting, by circuitry of a transmission device into the video stream, auxiliary information for downscaling a spatial and/or temporal resolution of the image data;
- setting the identifying information included in the container to indicate that the video stream includes the auxiliary information for a decoder that does not support the spatial and/or temporal resolution of the image data;
- and
- transmitting the container, wherein
- downscaling processing of the spatial and/or temporal resolution of the image data is applied, by a reception device which receives the container having the video stream and the descriptor and extracts the auxiliary information inserted into the video stream, to the image data according to the auxiliary information for downscaling the spatial and/or temporal resolution of the image data to generate display image data having a desired resolution.
3 more elements
A reception device comprising:
- circuitry configured to
- receive a container in a format including identifying information and a video stream separately provided in the container, the video stream including encoded image data;
- determine whether the identifying information indicates that the video stream includes auxiliary information for downscaling a spatial and/or temporal resolution of the image data;
- and
- in response to determining that a decoder of the reception device does not support the spatial and/or temporal resolution of the image data and determining that the identifying information indicates that the video stream includes the auxiliary information,
- extract the auxiliary information from the video stream,
- apply downscaling processing to the encoded image data according to the extracted auxiliary information for downscaling the spatial and/or temporal resolution of the image data, and
- generate display image data having a desired resolution based on a result of the applied downscaling processing.
5 more elements
A receiving method comprising:
- receiving, by a reception device, a container in a format including identifying information and a video stream separately provided in the container, the video stream including encoded image data;
- determining whether the identifying information indicates that the video stream includes auxiliary information for downscaling a spatial and/or temporal resolution of the image data;
- and
- in response to determining that a decoder of the reception device does not support the spatial and/or temporal resolution of the image data and determining that the identifying information indicates that the video stream includes the auxiliary information,
- extracting the auxiliary information from the video stream,
- applying, by circuitry of the reception device, downscaling processing to the encoded image data according to the extracted auxiliary information for downscaling the spatial and/or temporal resolution of the image data, and
- generating, by the circuitry, display image data having a desired resolution based on a result of the applied downscaling processing.
4 more elements
Dependencies are inferred from the claim text.