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US 2022/0360735 A1Published application
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.
Claims12
A transmission device comprising:
- an optoelectrical converter configured to perform high dynamic range optoelectrical conversion on high dynamic range video data to obtain transmission video data;
- and
- processing circuitry configured to:
- apply encoding processing to the transmission video data to obtain a video stream;
- instruct transmission of 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,
- wherein the processing circuitry is further continued to insert meta information for display control into a field different from the parameter set field in the video stream, and wherein the meta information for display control includes one or more of:
- (a) peak brightness information, (b) field information indicating a field where display brightness adjustment is allowed, and (c) information indicating whether the display brightness adjustment for the video stream is prohibited.
6 more elements
A transmission method comprising:
- performing high dynamic range optoelectrical conversion on high dynamic range video data to obtain transmission video data;
- applying encoding processing to 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,
- wherein the inserting further comprises inserting meta information for display control into a field different from the parameter set field in the video stream, and wherein the meta information for display control includes one or more of:
- (a) peak brightness information, (b) field information indicating a field where display brightness adjustment is allowed, and (c) information indicating whether the display brightness adjustment for the video stream is prohibited.
4 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
- processing circuitry configured to apply decoding processing to the video stream to obtain the transmission video data, and
- perform electro-optical conversion on the transmission video data obtained at the decoding 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 display control included in a field different from the parameter set field in the video stream,
- wherein the meta information for display control includes one or more of:
- (a) peak brightness information, (b) field information indicating a field where 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, and
- wherein the processing circuitry is further configured to adjust display brightness of the display video data on the basis of the meta information for display control.
6 more elements
A reception method comprising:
- receiving, through a receiver, a container in a predetermined format including a video stream obtained by encoding transmission video data;
- applying decoding processing to the video stream to obtain the transmission video data;
- and
- performing electro-optical conversion on the transmission video data obtained through the decoding 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,
- wherein the electro-optical conversion characteristic indicated by the meta information is used during the electro-optical conversion,
- wherein meta information for display control is included in a field different from the parameter set field in the video stream, and
- wherein the meta information for display control includes one or more of:
- (a) peak brightness information, (b) field information indicating a field where display brightness adjustment is allowed, and (c) information indicating whether the display brightness adjustment for the video stream is prohibited, and
- wherein the method further includes adjusting display brightness of the display video data on the basis of the meta information for display control.
7 more elements
Dependencies are inferred from the claim text.