Transmitting device, transmitting method, receiving device, and receiving method
AssigneeSony Corporation
InventorIkuo TSUKAGOSHI
Life of this patent
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Abstract
Display with an appropriate luminance dynamic range is realizable on a receiving side. A gamma curve is applied to input video data having a level range from 0% to 100%*N (N: a number larger than 1) to obtain transmission video data. This transmission video data is transmitted together with auxiliary information used for converting a high-luminance level on the receiving side. A high-level side level range of the transmission video data is converted on the receiving side such that a maximum level becomes a predetermined level based on the auxiliary information received together with the transmission video data.
Claims18
A transmitting device comprising:
- a processing unit that applies a gamma curve to input video data having a level range from 0% to 100%*N (N:
- a number larger than 1) to obtain transmission video data;
- and
- a transmission unit that transmits the transmission video data together with auxiliary information used for converting a high-luminance level on a receiving side.
A transmitting method comprising:
- a processing step that applies a gamma curve to input video data having a level range from 0% to 100%*N (N:
- a number larger than 1) to obtain transmission video data;
- and
- a transmission step that transmits the transmission video data together with auxiliary information used for converting a high-luminance level on a receiving side.
A receiving device comprising:
- a reception unit that receives transmission video data obtained by applying a gamma curve to input video data having a level range from 0% to 100%*N (N:
- a number larger than 1);
- and
- a processing unit that converts a high-level side level range of the transmission video data such that a maximum level becomes a predetermined level based on auxiliary information received together with the transmission video data.
A receiving method comprising:
- a reception step that receives transmission video data obtained by applying a gamma curve to input video data having a level range from 0% to 100%*N (N:
- a number larger than 1);
- and
- a processing step that converts a high-level side level range of the transmission video data such that a maximum level becomes a predetermined level based on auxiliary information received together with the transmission video data.
Dependencies are inferred from the claim text.