Transmission device, transmission method, reception device, and reception method
AssigneeSony Corporation
InventorIkuo TSUKAGOSHI
Life of this patent
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Abstract
The present technology ensures that electrooptical conversion processing for transmission video data obtained using an HDR optoelectrical conversion characteristic is favorably carried out at a receiving side. The transmission video data is obtained by performing high dynamic range optoelectrical conversion on high dynamic range video data. A video stream is obtained by applying encoding processing to this transmission video data. A container in a predetermined format including this video stream is transmitted. Meta information indicating an electrooptical conversion characteristic corresponding to a high dynamic range optoelectrical conversion characteristic is inserted into a parameter set field in the video stream.
Claims20
A transmission device comprising:
- an optoelectrical converter that performs high dynamic range optoelectrical conversion on high dynamic range video data to obtain transmission video data;
- an encoding unit that applies encoding processing to the transmission video data to obtain a video stream;
- a transmitter that transmits a container in a predetermined format including the video stream;
- and
- an information inserter that inserts meta information indicating an electrooptical conversion characteristic corresponding to a characteristic of the high dynamic range optoelectrical conversion into a parameter set field in the video stream.
A transmission method comprising:
- an optoelectrical conversion step of performing high dynamic range optoelectrical conversion on high dynamic range video data to obtain transmission video data;
- an encoding step of applying encoding processing to the transmission video data to obtain a video stream;
- a transmission step of transmitting a container in a predetermined format including the video stream through a transmitter;
- and
- an information insertion step of inserting meta information indicating an electrooptical conversion characteristic corresponding to a characteristic of the high dynamic range optoelectrical conversion into a parameter set field in the video stream.
A reception device comprising:
- a receiver that receives a container in a predetermined format including a video stream obtained by encoding transmission video data;
- a decoding unit that applies decoding processing to the video stream to obtain the transmission video data;
- and
- an electrooptical converter that performs electrooptical conversion on the transmission video data obtained at the decoding unit to obtain display video data, wherein
- the transmission video data is data obtained by applying high dynamic range optoelectrical conversion to high dynamic range data, and
- meta information indicating an electrooptical conversion characteristic corresponding to a characteristic of the high dynamic range optoelectrical conversion is inserted into a parameter set field in the video stream,
- the reception device further comprising an information extractor that extracts the meta information from the video stream, wherein
- the electrooptical converter uses the electrooptical conversion characteristic indicated by the meta information extracted at the information extractor.
A reception method comprising:
- a reception step of receiving, through a receiver, a container in a predetermined format including a video stream obtained by encoding transmission video data;
- a decoding step of applying decoding processing to the video stream to obtain the transmission video data;
- and
- an electrooptical conversion step of performing electrooptical conversion on the transmission video data obtained through the decoding step to obtain display video data, wherein
- the transmission video data is data obtained by applying high dynamic range optoelectrical conversion to high dynamic range data,
- meta information indicating an electrooptical conversion characteristic corresponding to a characteristic of the high dynamic range optoelectrical conversion is inserted into a parameter set field in the video stream, and
- the electrooptical conversion characteristic indicated by the meta information is used during the electrooptical conversion step.
Dependencies are inferred from the claim text.