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US 10,834,476 B2Granted
Transmission apparatus, transmission method, reception apparatus, and reception method
AssigneeSony Corporation
InventorIkuo Tsukagoshi
Life of this patent
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Abstract
A transmission apparatus includes circuitry configured to perform high dynamic range (HDR) opto-electronic conversion on HDR video data to obtain HDR transmission video data. An encoder receives input of at least the HDR transmission video data and output a video stream including coded video data, and a transmitter sends the video stream. The circuitry is further configured to insert HDR conversion characteristic meta-information into the video stream, the HDR conversion characteristic meta-information indicating a characteristic of the HDR conversion.
Claims24
A transmission apparatus, comprising:
- circuitry configured to
- perform high dynamic range (HDR) opto-electronic conversion on HDR video data to obtain HDR transmission video data,
- encode the HDR transmission video data and output a video stream including coded HDR transmission video data,
- insert HDR conversion characteristic meta-information into the video stream, the HDR conversion characteristic meta-information indicating an HDR conversion characteristic,
- insert peak luminance information into the video stream, and send the video stream, wherein
- a display luminance of the HDR transmission video data is adjusted based on the peak luminance information included in the video stream, the adjustment of the display luminance of the HDR transmission video data and HDR electro-optical conversion on the HDR transmission video data being separate processes.
3 more elements
A transmission method, comprising:
- performing, by circuitry of a transmission apparatus, high dynamic range (HDR) opto- electronic conversion on HDR video data to obtain HDR transmission video data;
- encoding the HDR transmission video data and outputting a video stream including coded HDR transmission video data;
- inserting HDR conversion characteristic meta-information the video stream, the HDR conversion characteristic meta-information indicating an HDR conversion characteristic;
- inserting peak luminance information into the video stream;
- and sending the video stream, wherein
- a display luminance of the HDR transmission video data is adjusted based on the peak luminance information included in the video stream, the adjustment of the display luminance of the HDR transmission video data and HDR electro-optical conversion on the HDR transmission video data being separate processes.
3 more elements
A reception apparatus, comprising:
- circuitry configured to
- receive a video stream;
- decode the video stream to obtain high dynamic range (HDR) transmission video data, the video stream including HDR conversion characteristic meta-information that indicates an HDR conversion characteristic and including peak luminance information;
- perform HDR electro-optical conversion on the HDR transmission video data based on the HDR conversion characteristic meta-information to obtain video data for display;
- and
- adjust a display luminance of the HDR transmission video data based on the peak luminance information included in the video stream,
- wherein the adjustment of the display luminance of the HDR transmission video data and HDR electro-optical conversion on the HDR transmission video data are separate processes.
4 more elements
A reception method, comprising:
- receiving a video stream;
- decoding the video stream to obtain high dynamic range (HDR) transmission video data, the video stream including a supplemental enhancement information (SEI) network abstraction layer (NAL) portion in which HDR conversion characteristic meta-information is included and including peak luminance information, the HDR conversion characteristic meta- information indicating an HDR conversion characteristic;
- performing HDR electro-optical conversion on the HDR transmission video data based on the HDR conversion characteristic meta-information to obtain video data for display;
- and adjusting a display luminance of the HDR transmission video data based on the peak luminance information included in the video stream,
- wherein the adjustment of the display luminance of the HDR transmission video data and HDR electro-optical conversion on the HDR transmission video data are separate processes.
2 more elements
A reception apparatus, comprising:
- circuitry configured to
- receive a video stream;
- decode the video stream to obtain high dynamic range (HDR) transmission video data, the video stream including HDR conversion characteristic meta-information that indicates an HDR conversion characteristic and including peak luminance information;
- perform HDR electro-optical conversion on the HDR transmission video data based on the HDR conversion characteristic meta-information to obtain video data for display;
- and
- adjust a display luminance of the HDR transmission video data or the converted video data based on the peak luminance information included in the video stream,
- wherein the adjustment of the display luminance of the HDR transmission video data and the HDR electro-optical conversion on the HDR transmission video data are separate processes.
4 more elements
Dependencies are inferred from the claim text.