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US 12,015,872 B2Granted
Transmission device, transmission method, reception device, and reception method
AssigneeSony Group 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.
Claims10
A transmission device comprising:
- an optoelectrical converter circuitry configured to perform high dynamic range optoelectrical conversion on high dynamic range video data to obtain transmission video data;
- and
- a processing circuitry configured to:
- encode the transmission video data to obtain a video stream;
- transmit a container in a predetermined format including the video stream;
- and
- insert meta information indicating an electro-optical conversion characteristic corresponding to a characteristic of the high dynamic range optoelectrical conversion into a parameter set field in the video stream, the parameter set field being a field for video usability information (VUI),
- wherein the processing circuitry is further configured to insert meta information for a display control into a field different from the parameter set field in the video stream, and insert, into a layer of the container, identification information indicating that the video stream supports the high dynamic range, wherein information indicating whether the display brightness adjustment for the video stream is prohibited is added to the identification information, and
- wherein the meta information for the display control includes one or more of:
- (a) peak brightness information, (b) field information indicating a field where a display brightness adjustment is allowed, and (c) information indicating whether the display brightness adjustment for the video stream is prohibited.
7 more elements
A transmission method implemented by a transmission device, the transmission method comprising:
- performing high dynamic range optoelectrical conversion on high dynamic range video data to obtain transmission video data;
- encoding the transmission video data to obtain a video stream;
- transmitting a container in a predetermined format including the video stream through a transmitter;
- and
- inserting meta information indicating an electro-optical conversion characteristic corresponding to a characteristic of the high dynamic range optoelectrical conversion into a parameter set field in the video stream, the parameter set field being a field for video usability information (VUI),
- wherein the inserting further comprises inserting meta information for a display control into a field different from the parameter set field in the video stream, and inserting, into a layer of the container, identification information indicating that the video stream supports the high dynamic range, wherein information indicating whether the display brightness adjustment for the video stream is prohibited is added to the identification information, and
- wherein the meta information for the display control includes one or more of:
- (a) peak brightness information, (b) field information indicating a field where a display brightness adjustment is allowed, and (c) information indicating whether the display brightness adjustment for the video stream is prohibited.
5 more elements
A reception device comprising:
- a receiver that receives a container in a predetermined format including a video stream obtained by encoding transmission video data;
- and
- a processing circuitry configured to
- decode the video stream to obtain the transmission video data, and
- perform electro-optical conversion on the transmission video data 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 inserting meta information indicating an electro-optical 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 meta information for a display control included in a field different from the parameter set field in the video stream, the parameter set field being a field for video usability information (VUI),
- wherein the meta information for the display control includes one or more of:
- (a) peak brightness information, (b) field information indicating a field where a display brightness adjustment is allowed, and (c) information indicating whether the display brightness adjustment for the video stream is prohibited the reception device,
- wherein the processing circuitry is further configured to extract the meta information from the video stream,
- wherein the electro-optical conversion uses the electro-optical conversion characteristic indicated by the extracted meta information,
- wherein the processing circuitry is further configured to adjust display brightness of the display video data based on the meta information for the display control,
- wherein identification information indicating that the video stream supports the high dynamic range is inserted into a layer of the container, and
- wherein information indicating whether the display brightness adjustment for the video stream is prohibited is inserted into a layer of the container and/or a layer of the video stream.
10 more elements
A reception method implemented by a reception device, the reception method comprising:
- receiving, through a receiver, a container in a predetermined format including a video stream obtained by encoding transmission video data;
- decoding the video stream to obtain the transmission video data;
- and
- performing an electro-optical conversion on the transmission video data 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 inserting meta information indicating an electro-optical conversion characteristic corresponding to a characteristic of the high dynamic range optoelectrical conversion into a parameter set field in the video stream, the parameter set field being a field for video usability information (VUI),
- wherein the electro-optical conversion characteristic indicated by the meta information is used during the electro-optical conversion,
- wherein the meta information for a display control is included in a field different from the parameter set field in the video stream,
- wherein the meta information for the display control includes one or more of:
- (a) peak brightness information, (b) field information indicating a field where a display brightness adjustment is allowed, and (c) information indicating whether the display brightness adjustment for the video stream is prohibited,
- wherein the reception method further includes adjusting display brightness of the display video data based on the meta information for the display control,
- wherein identification information indicating that the video stream supports the high dynamic range is inserted into a layer of the container, and
- wherein information indicating whether the display brightness adjustment for the video stream is prohibited is inserted into a layer of the container and/or a layer of the video stream.
9 more elements
Dependencies are inferred from the claim text.